WO2024045189A1 - 送料装置 - Google Patents

送料装置 Download PDF

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Publication number
WO2024045189A1
WO2024045189A1 PCT/CN2022/116867 CN2022116867W WO2024045189A1 WO 2024045189 A1 WO2024045189 A1 WO 2024045189A1 CN 2022116867 W CN2022116867 W CN 2022116867W WO 2024045189 A1 WO2024045189 A1 WO 2024045189A1
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WO
WIPO (PCT)
Prior art keywords
extrusion
feeding device
along
pressure roller
base
Prior art date
Application number
PCT/CN2022/116867
Other languages
English (en)
French (fr)
Inventor
王光耀
范翔
林纲
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to EP22893995.5A priority Critical patent/EP4366007A1/en
Priority to PCT/CN2022/116867 priority patent/WO2024045189A1/zh
Priority to US18/202,207 priority patent/US11973176B2/en
Publication of WO2024045189A1 publication Critical patent/WO2024045189A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/049—Processes for forming or storing electrodes in the battery container

Definitions

  • the present application relates to the technical field of product assembly, and in particular to a feeding device for loading materials into containers.
  • the purpose of this application is to provide a feeding device that can reduce damage to materials during the feeding process.
  • the application provides a feeding device for loading materials into a container with an opening.
  • the feeding device includes an extrusion unit, and the extrusion unit includes an extrusion part and a driving part.
  • the extrusion part has an extrusion plane; the driving part is used to drive the extrusion part to circulate along a closed trajectory, and the closed trajectory includes a first plane trajectory segment.
  • the extrusion part moves along the first plane
  • the track section moves, the extrusion plane contacts the material forming surface and keeps extending along the material feeding direction, which is the movement direction of the material relative to the container.
  • the contact between the extrusion plane and the material is surface contact and keeps extending along the feeding direction, so that the extrusion part and There is a large contact area between materials, and the force exerted by the extrusion part on the material is dispersed, which can reduce the risk of the extrusion part damaging the material, thus improving the yield and production efficiency of products (such as battery cells).
  • the extrusion part includes an extrusion part body and a buffer layer
  • the buffer layer covers at least part of the surface of the extrusion part body
  • the extrusion plane is disposed on the buffer layer .
  • the buffer layer is provided to buffer the extrusion plane against the material, so as to reduce the risk of damage to the material from the extrusion plane.
  • the movement direction of the extrusion member along the first plane track segment is the same as the material feeding direction.
  • the movement direction of the extrusion part along the first plane track section is the same as the material feeding direction.
  • the extrusion part can follow the material to move in the feeding direction, which can reduce the relative movement between the extrusion part and the material. Small friction makes it easy to load materials into containers.
  • the material is an electrode assembly, it can reduce the risk of the isolation film being pulled and torn, and improve the yield rate of battery cells.
  • the driving member is used to drive the extrusion member to rotate around a first axis to move the extrusion plane closer to or away from the material, and the extension direction of the first axis is perpendicular to the Describe the feeding direction.
  • the driving member drives the extrusion piece to rotate around the first axis, and while the extrusion piece moves cyclically along the closed trajectory, the extrusion plane is moved closer to or farther away from the material, and the operation is simple.
  • the extrusion unit further includes a rotating shaft and a conversion mechanism
  • the driving member is used to drive the rotating shaft to rotate
  • the first axis is the central axis of the rotating shaft
  • the conversion mechanism is It is configured to convert the rotational motion of the rotating shaft into the cyclic motion of the extrusion part along the closed trajectory.
  • the conversion mechanism converts the rotating motion of the rotating shaft into the cyclic motion of the extruded part along a closed trajectory, constraining the movement trajectory of the extruded part so that the extruded part can rotate around the first While the axis moves, it also performs circular motion along a closed trajectory.
  • the conversion mechanism includes a cam
  • the cam is installed on the rotating shaft
  • the projection of the cam on a plane perpendicular to the rotating shaft is a Leroy triangle
  • the extruded piece is a rectangle
  • the rectangular frame is sleeved on the outside of the cam, and the extrusion plane is provided on the side of the rectangular frame facing the material.
  • the conversion mechanism includes a cam.
  • the projection of the cam on a plane perpendicular to the rotating axis is a Rörault triangle.
  • the rectangular frame is set on the outside of the cam.
  • the structure is simple. Based on the structure of the Rérault triangle, when the cam follows the rotation of the rotating axis , the cam can drive the rectangular frame to move, so that the extrusion plane moves closer to or away from the material.
  • the conversion mechanism further includes a first guide rail used to guide the rectangular frame to move along the closed trajectory.
  • the movement of the rectangular frame is guided by the first guide rail, and the trajectory of the rectangular frame is constrained so that the rectangular frame moves along a closed trajectory.
  • the extrusion part is a pressure roller
  • the extension direction of the pressure roller is parallel to the extension direction of the first axis
  • the extrusion plane is a part of the outer peripheral surface of the pressure roller.
  • the extrusion part is a pressure roller with a simple structure
  • the extrusion plane is part of the outer peripheral surface of the pressure roller, which has a good extrusion effect on the material.
  • the cross section of the pressure roller is polygonal.
  • the polygonal cross section facilitates the processing of the pressure roller.
  • the cross section of the pressure roller is rectangular.
  • the cross section is rectangular and the structure is simple, and any outer peripheral surface of the pressure roller can be used as an extrusion plane.
  • the extrusion unit includes a plurality of pressure rollers, the plurality of pressure rollers are spaced around the rotation axis, and the plurality of pressure rollers are configured to revolve around the first axis. .
  • multiple pressure rollers rotate around the first axis so that different pressure rollers act on the material and alternately squeeze the material so that the material enters the container.
  • the conversion mechanism includes: a pair of brackets, the pair of brackets are arranged on the rotating shaft at intervals along the axial direction of the rotating shaft, and a plurality of the pressure rollers are movably installed on the rotating shaft. a pair of brackets; limiters, the limiters cooperate with the pressure roller, the limiters are used to guide the pressure roller to revolve around the first axis along the closed trajectory and limit the pressure roller rotation.
  • a pair of brackets are arranged at intervals on the rotating shaft, and multiple pressure rollers are movably installed on the pair of brackets to facilitate the positioning and support of the multiple pressure rollers.
  • the rotating shaft drives the pair of brackets to rotate, which can realize multiple Each pressure roller revolves around the first axis and cooperates with the pressure roller through the limiter, so that the pressure roller moves along a closed trajectory and limits the rotation of the pressure roller.
  • the extrusion plane remains facing the material. Multiple pressure rollers can alternately cooperate with the material to facilitate Material enters the container.
  • the bracket has a first mounting hole for the rotating shaft to pass through and a plurality of second mounting holes for the pressure roller to pass through, and the plurality of second mounting holes are connected with a plurality of The pressure rollers are arranged correspondingly, and the plurality of second mounting holes are distributed at circumferential intervals around the first mounting holes.
  • the rotating shaft is installed in the first mounting hole to facilitate the positioning of the rotating shaft;
  • the plurality of pressure rollers are installed in the plurality of second installation holes to facilitate the positioning of the plurality of pressure rollers.
  • the pressure roller has a fitting portion, the fitting portion is disposed in the second mounting hole, and the size of the second mounting hole along the radial direction of the rotating shaft is larger than the fitting portion. Dimensions along the radial direction of the rotation axis.
  • the fitting portion is movably matched with the second mounting hole, so that the fitting portion can move relative to the bracket along the radial direction of the rotation axis.
  • the fitting portion is located between the end of the pressure roller and the extrusion plane, and the cross-sectional area of the fitting portion is smaller than that of the pressure roller.
  • the cross-sectional area of the portion of the roller adjacent to the mating portion is smaller than that of the pressure roller.
  • the cross-sectional area of the fitting portion is smaller than the cross-sectional area of the portion of the pressure roller adjacent to the fitting portion, and the fitting portion is a portion of the pressure roller with a smaller cross-sectional area to facilitate assembly of the pressure roller and the bracket.
  • the cross-section of the fitting portion is circular.
  • the circular cross-section on the one hand, facilitates processing, and on the other hand, makes the pressure roller rotate flexibly relative to the bracket.
  • the bracket is disk-shaped, and each of the second mounting holes extends to an edge of the bracket along a radial direction of the bracket.
  • the bracket is disk-shaped to facilitate processing and manufacturing; the second mounting hole extends along the radial direction of the bracket to the edge of the bracket to facilitate the assembly of the pressure roller.
  • each limiter has a position facing the other.
  • the first surface of the limiting member is provided with a limiting groove, and the end of the pressure roller is configured to move along the groove side of the limiting groove to form the closed track.
  • the movement trajectory of the end of the pressure roller is restricted by the limiting groove, which has a good limiting effect and allows the pressure roller to maintain a closed trajectory movement.
  • the outer contour of the limiting groove is rectangular, and the closed trajectory is a rectangular trajectory.
  • the outer contour of the limit groove is rectangular and the closed trajectory is a rectangular trajectory, which facilitates processing and makes the movement of the pressure roller stable. At the same time, it can also limit the extrusion plane towards the material.
  • the cross section of the end of the pressure roller is rectangular.
  • the rectangular cross-section facilitates the cooperation between the pressure roller and the limiting groove, making the movement of the pressure roller stable.
  • an escape groove is also provided on the first surface.
  • the escape groove is provided at a corner of the limiting groove and communicates with the limiting groove.
  • the relief groove is used for avoiding The pressure roller.
  • the setting of the avoidance groove can avoid the pressure roller, making the pressure roller move flexibly and stably.
  • a roller is installed on the end surface of the pressure roller, a guide groove is provided on the bottom surface of the limiting groove, and the roller is rollingly matched with the groove side of the guide groove.
  • the roller can rotate relative to the pressure roller, and the roller rolls with the groove side of the guide groove.
  • the rolling of the roller drives the pressure roller to move in the limiting groove, making the pressure roller move flexibly.
  • the projection of the guide groove is located in the limiting groove.
  • the projection of the guide groove is located in the limit groove, and the roller is rollingly matched with the groove side of the guide groove, which does not affect the movement of the end of the pressure roller along the groove side of the limit groove, and facilitates the processing and manufacturing of the guide groove.
  • the groove side of the guide groove is closer to the first axis than the groove side of the limiting groove.
  • the groove side of the guide groove is closer to the first axis than the groove side of the limiting groove, which facilitates the rolling fit between the roller and the groove side of the guide groove, making the pressure roller move flexibly.
  • the outer contour of the guide groove is rectangular.
  • the outer contour of the guide groove is rectangular, with a simple structure and easy processing; when the closed trajectory is a rectangular trajectory, the pressure roller can move flexibly.
  • the arc transition between the two adjacent groove sides facilitates flexible and stable rolling of the roller.
  • the extrusion unit further includes a first base, the first base includes two of the limiting members, and the first base is provided with a base for abutting the container.
  • the step surface can position the open end of the container so that the first base can cooperate with the container and materials can enter the container.
  • the first base further includes a base body and a protective cover.
  • the base body is connected to the two limiting members, and the protective cover is fixed to the base body.
  • the protective cover is used to cover the outside of the rotating shaft and a plurality of the pressure rollers.
  • the protective cover is provided with an opening for the pressure rollers to be exposed to squeeze the material.
  • the step surface is along the opening. edge setting.
  • the protective cover can protect the rotating shaft and the pressure roller and reduce the risk of impurities entering the protective cover and affecting the rotation of the rotating shaft and the pressure roller.
  • the protective cover includes a first cover body and a second cover body arranged oppositely along the material feeding direction, and the first cover body and the second cover body are interlocked, so The step surface is provided on the first cover body.
  • the first cover body and the second cover body are interlocked to facilitate assembly and disassembly.
  • the extrusion unit further includes a first pulley, a second pulley and a transmission belt.
  • the first pulley is connected to the output end of the driving member, and the second pulley is connected to On the rotating shaft, the transmission belt is sleeved on the first pulley and the second pulley.
  • the driving member and the rotating shaft are connected through the first pulley, the second pulley and the transmission belt, so that the power transmission is stable.
  • the extrusion unit further includes a first base and a second base, the extrusion piece is disposed on the first base, and the first base is moveable along a first direction. Floatingly provided on the second base, the first direction is perpendicular to the extrusion plane.
  • the first base realizes the installation and positioning of the extruded part
  • the second base floats with the first base
  • the second base realizes the supporting and positioning of the first base, so as to facilitate the extrusion part and the first base.
  • a second guide rail is provided on the second base, the second guide rail extends along the first direction, and the first base is slidably disposed on the second guide rail.
  • the first base and the second base are slidably matched through the second guide rail, so that the first base moves stably relative to the second base.
  • the extrusion unit further includes a limiting block, a guide rod and an elastic member.
  • the limiting block is provided on the second base, and the limiting block is provided with a through hole.
  • the guide rod extends along the first direction, the guide rod is slidably inserted into the through hole, one end of the guide rod is connected to the first base, and the elastic member is sleeved on the The guide rod is elastically supported between the limiting block and the first base.
  • the elastic member is elastically supported between the limiting block and the first base, and the guide rod guides the elastic member so that the extruded member can cooperate with the material; when the extruded member is acted upon in the first direction
  • the extrusion piece moves in the direction away from the material and squeezes the elastic piece, so that the first base can float along the first direction, reducing the risk of the extrusion piece being overly stressed. Risk of damage.
  • the feeding device further includes a detection unit disposed between the first base and the second base, and the detection unit is used to detect the extrusion The force along the first direction that the component is subjected to.
  • the detection unit can detect that when the extrusion member initially acts on the material, the material exerts an extrusion force on the first base.
  • the reaction force of the extrusion part is used to control the force exerted by the extrusion part on the material.
  • the driving member is provided on the second base.
  • the second base can position and support the driving member, and at the same time, it can also reduce interference between the driving member and other components.
  • the two extrusion units are arranged oppositely along a first direction, the first direction is perpendicular to the extrusion plane, and the two extrusion units A clamping space for clamping the material is formed between the pressing units.
  • the two extrusion units are arranged opposite each other along the first direction to jointly clamp the material, further reducing the risk of damage to the material from being clamped.
  • the feeding device further includes a driving mechanism for driving the extrusion unit to move in a direction opposite to the feeding direction.
  • the driving mechanism drives the extrusion unit to move in the opposite direction of the material feeding direction, and cooperates with the extrusion part to move along the first plane track section in the material feeding direction, so that the material can be automatically loaded into the container.
  • the feeding device further includes a frame, the extrusion unit is installed on the frame, and the driving mechanism is used to drive the frame in a direction opposite to the feeding direction. move.
  • the frame realizes the installation and positioning of the extrusion unit, and the driving mechanism can drive the frame to move in the direction opposite to the material feeding direction to facilitate the loading of materials into the container.
  • the material is an electrode assembly
  • the container is a shell
  • the material is an electrode assembly and the container is a shell, which realizes the insertion operation of the electrode assembly into the shell, improves the yield rate of battery cells and improves manufacturing efficiency.
  • Figure 1 is a schematic diagram of the movement of an extrusion part provided by some embodiments of the present application.
  • FIG. 2 is a schematic structural diagram of a feeding device provided by some embodiments of the present application.
  • Figure 3 is a schematic structural diagram of an extrusion part provided by some embodiments of the present application.
  • Figure 4 is a perspective view of a feeding device provided by some embodiments of the present application.
  • Figure 5 is a schematic structural diagram of a conversion mechanism provided by some embodiments of the present application.
  • Figure 6 is a schematic structural diagram of a conversion mechanism provided by some embodiments of the present application.
  • Figure 7 is a schematic structural diagram of a conversion mechanism provided by some embodiments of the present application.
  • Figure 8 is a schematic structural diagram of a conversion mechanism provided by some embodiments of the present application.
  • Figure 9 is a schematic structural diagram of a conversion mechanism provided by other embodiments of the present application.
  • Figure 10 is a schematic structural diagram of a pressure roller provided by some embodiments of the present application.
  • Figure 11 is a schematic diagram of the cooperation between the rotating shaft and the bracket provided by some embodiments of the present application.
  • Figure 12 is a schematic diagram of the cooperation between the bracket and multiple pressure rollers provided by some embodiments of the present application.
  • Figure 13 is a perspective view of the limiting member provided by some embodiments of the present application.
  • Figure 14 is a schematic diagram of the cooperation between the pressure roller and the limiting groove provided by some embodiments of the present application.
  • Figure 15 is a schematic diagram of the cooperation between the roller and the guide groove provided by some embodiments of the present application.
  • Figure 16 is a schematic structural diagram of a limiting member provided by some embodiments of the present application.
  • Figure 17 is a schematic structural diagram of the first base provided by some embodiments of the present application.
  • Figure 18 is an exploded view of the first base provided by some embodiments of the present application.
  • Figure 19 is a schematic assembly diagram of the driving member and the rotating shaft provided by some embodiments of the present application.
  • Figure 20 is an exploded schematic diagram of a partial structure of an extrusion unit provided by some embodiments of the present application.
  • Figure 21 is a schematic structural diagram of a feeding device provided by other embodiments of the present application.
  • Marking description 1000-Feeding device; 100-Extrusion unit; 10-Extrusion part; 10a-rectangular frame; 10b-pressure roller; 101-Extrusion plane; 11-Extrusion part body; 12-Buffer layer; 13- Fitting part; 14-roller; 20-driving part; 30-rotating shaft; 40-conversion mechanism; 41-cam; 42-bracket; 421-first mounting hole; 422-second mounting hole; 43-limiting piece; 431 -First surface; 4311-limiting groove; 4312-avoidance groove; 4313-guide groove; 50-first base; 51-base body; 52-protective cover; 520-opening; 521-first cover body; 522-second cover body; 523-step surface; 61-first pulley; 62-second pulley; 63-transmission belt; 70-second base; 71-second guide rail; 81-limit block; 811 -Through hole; 82-guide rod; 83-elastic member; 90-detection unit; 200
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
  • Multiple appearing in this application refers to more than two (including two). Similarly, “multiple groups” refers to two or more groups (including two groups), and “multiple tablets” refers to two or more tablets. (Includes two pieces).
  • the battery mentioned refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the battery mentioned in this application may include a battery module or a battery pack.
  • the battery cell includes an electrode assembly and an electrolyte.
  • the electrode assembly consists of a positive electrode plate, a negative electrode plate and a separator. Battery cells mainly rely on the movement of metal ions between the positive and negative electrodes to work.
  • the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer.
  • the positive electrode active material layer is coated on the surface of the positive electrode current collector.
  • the current collector without the positive electrode active material layer is used as a positive electrode tab.
  • the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganate, etc.
  • the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer.
  • the negative electrode active material layer is coated on the surface of the negative electrode current collector.
  • the current collector without the negative electrode active material layer is used as a negative electrode tab.
  • the material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon. In order to ensure that large currents can pass through without melting, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together.
  • the material of the isolation film can be PP (polypropylene, polypropylene) or PE (polyethylene, polyethylene), etc.
  • the battery cell also includes a casing and a cover.
  • the casing has an opening.
  • the cover closes the opening to form a sealed space.
  • the electrode assembly is accommodated in the casing.
  • the electrode assembly needs to be placed in the case to complete the insertion of the electrode assembly into the case.
  • the assembly process includes: installing the electrode assembly into the case; and installing the battery cells into the box.
  • the electrode assembly is usually inserted into the case by pushing the electrode assembly into the case.
  • the electrode assembly needs to be squeezed before it can enter the case.
  • the inventor found that the transport wheel is usually used to squeeze and transport the electrode assembly.
  • the transport wheel and the electrode assembly are in line contact, the contact area between the transport wheel and the electrode assembly is small, and the force exerted by the transport wheel on the electrode assembly is concentrated. It is easy to damage the electrode components, resulting in low yield rate of battery cells and low production efficiency.
  • the inventors designed a technical solution after in-depth research, in which the extrusion surface of the extrusion part in contact with the material is designed as The extrusion plane has a large contact area with the material, and the force exerted by the extrusion part on the material is dispersed, which can reduce the risk of the extrusion part damaging the material, thus improving the product yield and production efficiency.
  • the electrode assembly can have a high group margin and a relatively fluffy structure.
  • the feeding device has a good extrusion effect on the electrode assembly and is not easily damaged.
  • the electrode assembly facilitates the installation of the electrode assembly into the housing.
  • the feeding device of this application can also be used in scenarios where other materials are loaded into containers to improve product yield and production efficiency.
  • Figure 1 is a schematic diagram of the movement of an extrusion part provided by some embodiments of the present application
  • Figure 2 is a schematic structural diagram of a feeding device provided by some embodiments of the present application.
  • the present application provides a feeding device 1000.
  • the feeding device 1000 is used to load materials into a container with an opening.
  • the feeding device 1000 includes an extrusion unit 100.
  • the extrusion unit 100 includes an extrusion piece.
  • the extrusion member 10 has an extrusion plane 101;
  • the driving member 20 is used to drive the extrusion member 10 to circulate along the closed trajectory G, the closed trajectory G includes the first plane trajectory segment G1, when the extrusion member 10 moves along the When the first plane track segment G1 moves, the extrusion plane 101 contacts the material forming surface and keeps extending along the material feeding direction Z, which is the movement direction of the material relative to the container.
  • the direction indicated by the Z direction is the feeding direction.
  • the extrusion unit 100 is used to be arranged with another extrusion unit in a direction perpendicular to the extrusion plane 101, so that a clamping space is formed between the extrusion unit 100 and the other extrusion unit, and the clamping space is used to clamp the material.
  • the extrusion unit 100 extrudes the material so that the size of the material in the direction perpendicular to the extrusion plane 101 is reduced, thereby facilitating the material to enter the container.
  • the other extrusion unit may be consistent with the structure of the extrusion unit 100 or may be inconsistent.
  • the other extrusion unit may be a transport wheel to provide extrusion support for the extrusion unit 100 .
  • the extrusion part 10 is a component used for contacting and extruding the material, and the extrusion plane 101 is a plane of the extrusion part 10 used for contacting the material forming surface.
  • the driving member 20 is a component that provides power to drive the extruding member 10 to circulate along the closed trajectory G.
  • the closed trajectory G is a trajectory closed from beginning to end, and the extrusion part 10 can move cyclically along the closed trajectory G.
  • the first plane track segment G1 is a component of the closed track G, and the extending direction of the first plane track segment G1 is parallel to the feeding direction Z.
  • the movement direction of the extrusion part 10 along the first plane trajectory section G1 can be the feeding direction Z, or it can also be the opposite direction to the feeding direction Z, or Alternatively, it can also be any direction within the plane where the first plane trajectory segment G1 is located.
  • the closed trajectory G in the figure is a rectangular trajectory, which is only a closed form.
  • the closed trajectory G includes a plane segment (i.e. the first Plane trajectory segment G1), other parts can connect this plane segment to form a closed trajectory.
  • the extrusion plane 101 When the extrusion part 10 moves along the first plane track section G1, the extrusion plane 101 is in contact with the material forming surface, and the extrusion plane 101 keeps extending along the material feeding direction Z, and the extrusion plane 101 keeps in contact with the material, so that the material Install into the casing.
  • the contact between the extrusion plane 101 and the material is surface contact, so that there is a larger contact area between the extrusion part 10 and the material, and the force exerted by the extrusion part 10 on the material is dispersed.
  • the risk of material damage by the extruded part 10 can be reduced, thereby improving product yield and production efficiency.
  • the extruded part 10 includes an extruded part body 11 and a buffer layer 12 , the buffer layer 12 covers at least part of the surface of the extruded part body 11 , and the extrusion plane 101 is provided on the buffer layer 12 .
  • the extruded part body 11 is a component of the extruded part 10 and has high strength to facilitate cooperation with the material.
  • the buffer layer 12 is an elastic component, and the buffer layer 12 can elastically deform to absorb stress.
  • the buffer layer 12 may cover the entire surface of the extruded part body 11 , or the buffer layer 12 may also cover part of the surface of the extruded part body 11 .
  • the buffer layer 12 can cover the surface of the extruded part body 11 in various forms.
  • the buffer layer 12 can cover the material-facing surface of the extruded part body 11 to form a buffer between the extruded part body 11 and the material;
  • the buffer layer 12 can cover the peripheral surface of the extrusion body 11 , that is, the buffer layer 12 can be disposed around the contour of the extrusion body 11 to have a larger contact area with the surface of the extrusion body 11 .
  • the buffer layer 12 can be connected to the extruded part body 11 in various ways.
  • the buffer layer 12 can be a rubber layer, and the buffer layer 12 can be bonded to the surface of the extruded part body 11, or the buffer layer 12 can also be a glue layer.
  • the buffer layer 12 is coated on the surface of the extruded part body 11 .
  • the buffer layer 12 is provided to buffer the extrusion of the material by the extrusion plane 101, so as to reduce the risk of damage to the material by the extrusion plane 101.
  • the movement direction of the extrusion member 10 along the first plane track segment G1 is the same as the feeding direction Z.
  • the movement direction of the extrusion part 10 along the first plane track section G1 is the same as the material feeding direction Z.
  • the extrusion part 10 can follow the material to move along the feeding direction Z, which can reduce the relative movement between the extrusion part 10 and the material. Reduce friction and facilitate the loading of materials into containers.
  • the material is an electrode assembly, it can reduce the risk of the isolation film being pulled and torn, and improve the yield rate of battery cells.
  • Figures 1 and 2 are a perspective view of a feeding device provided by some embodiments of the present application.
  • the driving member 20 is used to drive the extrusion member 10 to rotate around the first axis P to bring the extrusion plane 101 closer to or away from the material.
  • the extension direction of the first axis P is perpendicular to the material feeding direction Z.
  • the direction indicated by letter Y is the extension direction of the first axis P.
  • the first axis P is the rotation axis of the extrusion part 10
  • the extension direction Y of the first axis P is perpendicular to the feeding direction Z, so that the extrusion plane 101 can follow the extrusion part 10 as it rotates around the first axis P to approach or move away. materials.
  • the extrusion member 10 can circulate along the closed trajectory G.
  • the extension direction Y of the first axis P is perpendicular to the feeding direction Z, and the size of the extrusion plane 101 in the extension direction Y of the first axis P can be larger so that the extrusion plane 101 has a larger area.
  • the driving member 20 drives the extrusion member 10 to rotate around the first axis P, while the extrusion member 10 circulates along the closed trajectory G, so as to realize the extrusion plane 101 approaching or moving away from the material, and the operation is simple.
  • FIGS. 5 to 9 are schematic structural diagrams of the conversion mechanism provided by some embodiments of the present application.
  • FIG. 9 is a schematic structural diagram of the conversion mechanism provided by other embodiments of the present application.
  • the extrusion unit 100 further includes a rotating shaft 30 and a conversion mechanism 40.
  • the driving member 20 is used to drive the rotating shaft 30 to rotate.
  • the first axis P is the central axis of the rotating shaft 30.
  • the conversion mechanism 40 is configured to rotate the rotating shaft 30.
  • the rotational movement of 30 is converted into a cyclic movement of the extrusion 10 along a closed trajectory G (see Figure 2).
  • the rotating shaft 30 can rotate around the first axis P, and the extruded piece 10 can follow the rotation of the rotating shaft 30 and move along the closed trajectory G.
  • the conversion mechanism 40 is a mechanism that converts the rotational motion mode of the rotating shaft 30 .
  • the conversion mechanism 40 is used to convert the rotational motion of the rotating shaft 30 into the cyclic motion of the extruded piece 10 along the closed trajectory G.
  • the conversion mechanism 40 converts the rotational motion of the rotation shaft 30 into the cyclic motion of the extrusion part 10 along the closed trajectory G, constraining the movement trajectory of the extrusion part 10 so that the extrusion part 10 can While moving around the first axis P, it performs circular motion along the closed trajectory G.
  • the conversion mechanism 40 includes a cam 41.
  • the cam 41 is installed on the rotating shaft 30.
  • the projection of the cam 41 on a plane perpendicular to the rotating shaft 30 is a Leroy triangle.
  • the component 10 is a rectangular frame 10a.
  • the rectangular frame 10a is sleeved on the outside of the cam 41.
  • the extrusion plane 101 is provided on the side of the rectangular frame 10a facing the material.
  • the cam 41 is an integral part of the conversion mechanism 40 .
  • the cam 41 is installed on the rotating shaft 30 and can follow the rotating shaft 30 to rotate around the first axis P.
  • the Reroux triangle is also called the Reroux triangle, the Reroux triangle or the arc triangle.
  • the rectangular frame 10a is set on the outside of the cam 41, and part of the end of the cam 41 (where the apex of the Leroy triangle is located) is in contact with the inner wall of the rectangular frame 10a.
  • the two ends of the cam 41 are adjacent to the rectangular frame 10a.
  • the two inner walls are in contact.
  • Figures 5 to 8 show the movement process of the cam 41 driving the rectangular frame 10a along the closed trajectory G (see Figure 2).
  • the end of the cam 41 drives the rectangular frame 10a to move along the closed trajectory G.
  • the extrusion plane 101 faces the material.
  • the projection of the cam 41 on a plane perpendicular to the rotating shaft 30 is a Rörault triangle.
  • the rectangular frame 10a is set on the outside of the cam 41.
  • the structure is simple. Based on the structure of the Rörault triangle, the cam 41 follows the rotation of the rotating shaft 30. When the extrusion plane 101 is pressed, the cam 41 can drive the rectangular frame 10a to move, so that the extrusion plane 101 approaches or moves away from the material.
  • the conversion mechanism 40 further includes a first guide rail, which is used to guide the rectangular frame 10a to move along the closed trajectory G.
  • the first guide rail is a guide rail used to guide the movement of the rectangular frame 10a, and the rectangular frame 10a is in sliding cooperation with the first guide rail.
  • the first guide rail constrains the trajectory of the rectangular frame 10a, so that the rectangular frame 10a moves along the closed trajectory G.
  • the extrusion part 10 is a pressure roller 10b
  • the extension direction of the pressure roller 10b is parallel to the extension direction Y of the first axis P
  • the extrusion plane 101 is the outer periphery of the pressure roller 10b. part of the face.
  • the extension direction of the pressure roller 10b is parallel to the extension direction Y of the first axis P, that is, the extension direction of the central axis of the pressure roller 10b is parallel to the extension direction Y of the first axis P.
  • the outer peripheral surface of the pressure roller 10b is the surface of the pressure roller 10b distributed around the central axis of the pressure roller 10b.
  • the pressing plane 101 may be a partially flat area in the outer peripheral surface of the pressing roller 10b.
  • the extrusion part 10 is a pressure roller 10b with a simple structure.
  • the extrusion plane 101 is a part of the outer peripheral surface of the pressure roller 10b, which has a better extrusion effect on the material.
  • FIG. 10 is a schematic structural diagram of a pressure roller provided by some embodiments of the present application.
  • the cross section of the pressure roller 10b is polygonal.
  • the cross section of the pressure roller 10b refers to the cross section of the pressure roller 10b taken by a plane perpendicular to the central axis of the pressure roller 10b.
  • the polygonal cross-section of the pressure roller 10b means that the cross-section of the part of the pressure roller 10b acting on the material is a polygon, and other parts may be polygonal or other shapes.
  • the polygonal cross section facilitates the processing of the pressure roller 10b.
  • the cross section of the pressure roller 10b is rectangular.
  • the rectangular cross-section of the pressing roller 10b means that the cross-section of the part of the pressing roller 10b acting on the material is rectangular, and other parts may be polygonal or other shapes.
  • the extrusion unit 100 includes a plurality of pressure rollers 10b, the plurality of pressure rollers 10b are spaced around the rotation axis 30, and the plurality of pressure rollers 10b are configured to revolve around the first axis P. .
  • the plurality of pressure rollers 10b are spaced apart around the rotation axis 30, that is, the plurality of pressure rollers 10b are spaced apart around the first axis P, and the plurality of pressure rollers 10b can revolve around the first axis P.
  • multiple pressure rollers 10b revolve around the first axis P, so that different pressure rollers 10b act on the material and alternately squeeze the material so that the material enters the container.
  • the conversion mechanism 40 includes a pair of brackets 42 and a limiting member 43 .
  • the pair of brackets 42 are spaced on the rotating shaft 30 along the axial direction of the rotating shaft 30 .
  • the roller 10b is movably mounted on a pair of brackets 42; the limiter 43 cooperates with the pressure roller 10b, and the limiter 43 is used to guide the pressure roller 10b to revolve around the first axis P along the closed trajectory G and limit the rotation of the pressure roller 10b.
  • a pair of brackets 42 are arranged on the rotating shaft 30 along the axial direction of the rotating shaft 30 .
  • the pair of brackets 42 are in transmission cooperation with the rotating shaft 30 and can follow the rotating shaft 30 to rotate around the first axis P.
  • the brackets 42 and the rotating shaft 30 are connected by a key.
  • the extrusion plane 101 can be located between a pair of brackets 42 to facilitate the extrusion plane 101 to cooperate with the material.
  • the axial direction of the rotating shaft 30 is parallel to the extension direction Y of the first axis P.
  • a pair of brackets 42 may be close to both ends of the rotating shaft 30 in the axial direction of the rotating shaft 30 , and each bracket 42 is close to a corresponding end of the rotating shaft 30 so that there is a larger space between the pair of brackets 42 .
  • the bracket 42 is a component that plays a supporting role.
  • the plurality of pressure rollers 10b are movably installed on a pair of brackets 42.
  • the pressure roller 10b can move relative to the pair of brackets 42.
  • the pressure roller 10b can move closer to or farther away from the first pair of brackets 42.
  • Axis P when the driving member 20 drives the rotating shaft 30 to rotate, the pressure roller 10b can move in a direction away from the first axis P.
  • the limiting member 43 is a component that limits the movement trajectory of the pressure roller 10b, and the limiting member 43 can also limit the rotation of the pressure roller 10b when the pressure roller 10b moves along the closed trajectory G.
  • the limiting member 43 cooperates with the pressing roller 10b in a manner such that the limiting member 43 cooperates with the end of the pressing roller 10b to reduce interference with the pressing plane 101.
  • a pair of brackets 42 are arranged at intervals on the rotating shaft 30, and a plurality of pressure rollers 10b are movably installed on the pair of brackets 42 to facilitate positioning and support of the plurality of pressure rollers 10b.
  • the pair of brackets are driven by the rotating shaft 30.
  • the rotation of the bracket 42 enables the plurality of pressure rollers 10b to revolve around the first axis P, and cooperates with the pressure rollers 10b through the limiting member 43, so that the pressure rollers 10b move along the closed trajectory G and limit the rotation of the pressure rollers 10b, squeezing the plane 101 Keeping facing the material, the multiple pressure rollers 10b can alternately cooperate with the material to facilitate the material entering the container.
  • Figure 11 is a schematic diagram of the cooperation between the rotating shaft and the bracket provided by some embodiments of the present application.
  • Figure 12 is a schematic diagram of the cooperation between the bracket and multiple pressure rollers provided by some embodiments of the present application.
  • the bracket 42 has a first mounting hole 421 for the rotating shaft 30 to pass through and a plurality of second mounting holes 422 for the pressure roller 10b to pass through.
  • the plurality of second mounting holes 422 are connected with the plurality of pressure rollers.
  • 10b is provided correspondingly, and a plurality of second mounting holes 422 are distributed at circumferential intervals around the first mounting holes 421 .
  • the first mounting hole 421 and the second mounting hole 422 may be two through holes provided on the bracket 42 , and the first mounting hole 421 and the second mounting hole 422 may penetrate the bracket 42 along the axial direction of the rotating shaft 30 .
  • the first mounting hole 421 is for the rotating shaft 30 to pass through.
  • the rotating shaft 30 is inserted into the first mounting hole 421 and the rotating shaft 30 can drive the bracket 42 to rotate.
  • the second mounting hole 422 is for the pressing roller 10b to pass through, and the pressing roller 10b can move within the second mounting hole 422.
  • the plurality of second mounting holes 422 are provided corresponding to the plurality of pressure rollers 10b.
  • the number of the second mounting holes 422 is the same as the number of the pressure rollers 10b, and one pressure roller 10b is provided in each mounting hole.
  • the plurality of second mounting holes 422 are distributed at circumferential intervals around the first mounting hole 421 , that is, the central axis of the first mounting hole 421 is collinear with the central axis of the rotating shaft 30 (ie, the first axis P).
  • the mounting holes 422 are spaced apart around the central axis of the first mounting hole 421 , so that the plurality of pressure rollers 10 b are spaced apart around the rotation axis 30 .
  • the rotating shaft 30 is installed in the first mounting hole 421 to facilitate the positioning of the rotating shaft 30; the plurality of pressure rollers 10b are installed in the plurality of second mounting holes 422 to facilitate the positioning of the plurality of pressure rollers 10b.
  • the pressure roller 10b has a fitting portion 13.
  • the fitting portion 13 is disposed in the second mounting hole 422.
  • the size of the second mounting hole 422 along the radial direction of the rotating shaft 30 is larger than the diameter of the fitting portion 13 along the rotating shaft 30. direction size.
  • the fitting portion 13 is a local recessed portion of the pressure roller 10b, that is, the outer peripheral surface of a local area of the pressure roller 10b is recessed toward the central axis of the pressure roller 10b to form the fitting portion 13. It can also be understood that after part of the structure is hollowed out around the central axis of the pressure roller 10b in a local area of the pressure roller 10b, the remaining part in the local area is the matching portion 13.
  • the fitting portion 13 is located between the end of the pressure roller 10b and the extrusion plane 101, and is used to cooperate with the bracket 42.
  • the fitting portion 13 is disposed in the second mounting hole 422 .
  • the fitting portion 13 can be clearance-fitted with the second mounting hole 422 .
  • the size of the second mounting hole 422 along the radial direction of the rotating shaft 30 is larger than the size of the fitting portion 13 along the radial direction of the rotating shaft 30 .
  • the size is such that the fitting portion 13 can be close to or away from the first axis P relative to the bracket 42 .
  • the driving part 20 drives the rotating shaft 30 to rotate
  • the rotating shaft 30 drives the bracket 42 to rotate.
  • the fitting part 13 is clearance-fitted with the second mounting hole 422
  • the fitting part 13 can move in the second mounting hole 422, and the limiting member 43 guides the pressure roller.
  • 10b revolves around the first axis P along a closed trajectory G, and the rotation of the pressure roller 10b is restricted so that the extrusion plane 101 remains facing the material.
  • the fitting portion 13 movably fits with the second mounting hole 422 so that the fitting portion 13 can move relative to the bracket 42 along the radial direction of the rotating shaft 30 .
  • the fitting portion 13 is located between the end of the pressure roller 10b and the extrusion plane 101, and the cross-sectional area of the fitting portion 13 is less than The cross-sectional area of the portion of the pressure roller 10b adjacent to the fitting portion 13.
  • the cross-sectional area of the pressure roller 10b refers to the area of the cross-section of the pressure roller 10b taken by a plane perpendicular to the central axis of the pressure roller 10b.
  • the cross-sectional area of the fitting portion 13 refers to the area of the cross-section of the fitting portion 13 taken by a plane perpendicular to the central axis of the pressure roller 10b.
  • the cross-sectional area of the fitting portion 13 is smaller than the cross-sectional area of the portion of the pressing roller 10b adjacent to the fitting portion 13.
  • the cross-sectional area of the fitting portion 13 can be the smallest cross-sectional area of the pressing roller 10b, or it can also be the smallest cross-sectional area of the pressing roller 10b.
  • the cross-sectional area of the local area of the roller 10b is smaller.
  • the fitting portion 13 is located between the end of the pressure roller 10b and the extrusion plane 101.
  • the extrusion plane 101 is located between the two mating portions 13, that is, the extrusion plane 101 is located between the two brackets 42. Avoid interference between the bracket 42 and the material.
  • the size of the second mounting hole 422 in the direction about the first axis P may be smaller than the size of the pressure roller 10b in the direction about the first axis P, that is, along the extension direction Y of the first axis P, the pressure roller 10b is in
  • the projection on the bracket 42 partially overlaps with the second mounting hole 422, so as to restrict the pressure roller 10b from being separated from the bracket 42 along the extension direction Y of the first axis P after the pressure roller 10b is assembled with the bracket 42.
  • the cross-sectional area of the fitting portion 13 is smaller than the cross-sectional area of the portion of the pressing roller 10b adjacent to the fitting portion 13.
  • the fitting portion 13 is a portion of the pressing roller 10b with a smaller cross-sectional area, so as to facilitate the pressing of the roller. 10b is assembled with bracket 42.
  • the cross-section of the fitting portion 13 is circular.
  • the circular cross-section on the one hand, facilitates processing, and on the other hand, makes the pressing roller 10b flexible to rotate relative to the bracket 42.
  • the bracket 42 is disk-shaped, and each second mounting hole 422 extends along the radial direction of the bracket 42 to the edge of the bracket 42 .
  • each second mounting hole 422 extends along the radial direction of the bracket 42 to the edge of the bracket 42 , that is, the second mounting hole 422 extends from the edge of the bracket 42 toward the central axis of the bracket 42 , the pressure roller 10b can enter the second installation hole 422 from the edge of the bracket 42.
  • the bracket 42 is disk-shaped to facilitate processing and manufacturing; the second mounting hole 422 extends along the radial direction of the bracket 42 to the edge of the bracket 42 to facilitate the assembly of the pressure roller 10b.
  • Figure 13 is a perspective view of the limiting member provided by some embodiments of the present application
  • Figure 14 is a schematic diagram of the cooperation between the pressure roller and the limiting groove provided by some embodiments of the present application.
  • two limiting members 43 are provided. Both ends of the rotating shaft 30 are rotatably mounted on the two limiting members 43 respectively.
  • Each limiting member 43 has a direction facing the other limiting member 43 .
  • the first surface 431 has a limiting groove 4311 provided on the first surface 431, and the end of the pressure roller 10b is configured to move along the groove side of the limiting groove 4311 to form the closed track G.
  • Both ends of the rotating shaft 30 are rotatably mounted on two limiting pieces 43 respectively.
  • the rotating shaft 30 rotates with the two limiting pieces 43.
  • the rotating shaft 30 drives the bracket 42 to rotate, the plurality of pressure rollers 10b and the two limiting pieces 43 Cooperation ensures that the pressure roller 10b moves stably along the closed trajectory G.
  • the first surface 431 is the surface of the limiting member 43 facing the other limiting member 43 , and the extending direction of the central axis of the rotating shaft 30 intersects with the plane where the first surface 431 is located.
  • the limiting groove 4311 is a groove provided on the first surface 431 . It can be understood that the limiting groove 4311 is a region of the limiting member 43 formed by the first surface 431 recessed toward away from the other limiting member 43 .
  • the limiting groove 4311 is used to cooperate with the pressure roller 10b to limit the movement trajectory of the pressure roller 10b.
  • the end of the pressure roller 10b extends into the limiting groove 4311, and the peripheral surface of the end of the pressure roller 10b can contact the groove side of the limiting groove 4311.
  • the rotating shaft 30 drives the bracket 42 to rotate
  • the pressure roller 10b follows the bracket 42 around
  • the first axis P rotates
  • the end of the pressure roller 10b can move along the groove side of the limiting groove 4311 to form a closed track G.
  • the movement trajectory of the end of the pressure roller 10b is restricted by the limiting groove 4311, which has a good limiting effect, so that the pressure roller 10b keeps moving along the closed trajectory G.
  • the outer contour of the limiting groove 4311 is rectangular, and the closed trajectory G is a rectangular trajectory.
  • the outer contour of the limiting groove 4311 is rectangular, and the closed trajectory G is a rectangular trajectory, which facilitates processing and stabilizes the movement of the pressing roller 10b. At the same time, it can also restrict the extrusion plane 101 from facing the material.
  • the cross section of the end of the pressure roller 10b is rectangular.
  • the rectangular cross section is to match the outer contour of the limiting groove 4311, so that the end of the pressure roller 10b and the groove side of the limiting groove 4311 have a larger contact area, so that the pressure roller 10b can cooperate with the limiting groove 4311. , so that the pressure roller 10b moves stably.
  • the first surface 431 is also provided with an escape groove 4312.
  • the escape groove 4312 is provided at the corner of the limiting groove 4311 and communicates with the limiting groove 4311.
  • the groove 4312 is used to avoid the pressure roller 10b.
  • the relief groove 4312 is a groove provided on the first surface 431.
  • the relief groove 4312 is connected with the limiting groove 4311, and is easy to process and manufacture.
  • the relief groove 4312 is provided at the corner of the limiting groove 4311 to avoid the corner of the pressure roller 10b.
  • the relief grooves 4312 can be distributed at the four corners of the limiting groove 4311.
  • the arrangement of the escape groove 4312 can avoid the pressure roller 10b, making the pressure roller 10b move flexibly and stably.
  • Figure 15 is a schematic diagram of the cooperation between the roller and the guide groove provided in some embodiments of the present application.
  • a roller 14 is installed on the end surface of the pressure roller 10b, a guide groove 4313 is provided on the bottom surface of the limiting groove 4311, and the roller 14 rolls with the groove side of the guide groove 4313.
  • the guide groove 4313 is a groove provided on the bottom surface of the limiting groove 4311.
  • the guide groove 4313 has a guiding function and is used to cooperate with the roller 14.
  • the roller 14 is installed on the end surface of the pressure roller 10b.
  • the roller 14 can rotate relative to the pressure roller 10b.
  • the rotation axis of the roller 14 can be collinear with the central axis of the pressure roller 10b, so that the pressure roller 10b moves along the side of the limiting groove 4311. , the roller 14 can roll along the groove side of the guide groove 4313.
  • the roller 14 may be a cam follower.
  • the roller 14 can rotate relative to the pressure roller 10b, and the roller 14 rolls with the groove side of the guide groove 4313.
  • the rolling of the roller 14 drives the pressure roller 10b to move in the limiting groove 4311, making the pressure roller 10b move flexibly.
  • FIG. 16 is a schematic structural diagram of a limiting member provided by some embodiments of the present application.
  • the projection of the guide groove 4313 is located in the limiting groove 4311.
  • the projection of the guide groove 4313 is located in the limiting groove 4311, so that the projection of the roller 14 on the end surface of the pressure roller 10b is located in the end surface of the pressure roller 10b.
  • the roller 14 rolls with the groove side of the guide groove 4313, and does not It affects the end of the pressure roller 10b to move along the groove side of the limiting groove 4311, and facilitates the processing and manufacturing of the guide groove 4313.
  • the groove side of the guide groove 4313 is closer to the first axis P than the groove side of the limiting groove 4311 .
  • the groove side of the guide groove 4313 is closer to the first axis P than the groove side of the limiting groove 4311.
  • the projection of the guide groove 4313 can be located in the limiting groove 4311. It is convenient for the roller 14 to roll with the groove side of the guide groove 4313, so that the pressure roller 10b can move flexibly.
  • the outer contour of the guide groove 4313 is rectangular.
  • the outer contour of the guide groove 4313 is rectangular, which is simple in structure and easy to process.
  • the outer contour of the guide groove 4313 is annular, allowing the pressure roller 10b to move flexibly.
  • the extrusion unit 100 further includes a first base 50 , the first base 50 includes two limiting members 43 , and the first base 50 is provided with a step surface 523 for abutting the open end of the container. .
  • the first base 50 is a component for positioning, and the two limiting members 43 are two components of the first base 50 .
  • the step surface 523 is a surface provided on the first base 50 for abutting the open end of the container.
  • the step surface 523 can position the open end of the container so that the first base 50 can cooperate with the container and materials can enter the container.
  • Figure 18 is an exploded view of the first base provided by some embodiments of the present application.
  • the first base 50 also includes a base body 51 and a protective cover 52.
  • the base body 51 is connected to two limiting members 43.
  • the protective cover 52 is fixed to the base body 51.
  • the protective cover 52 is
  • the protective cover 52 is provided on the outside of the rotating shaft 30 and the plurality of pressure rollers 10b.
  • the protective cover 52 is provided with an opening 520 for exposing the pressure rollers 10b to squeeze the material.
  • the step surface 523 is provided along the edge of the opening 520.
  • the base body 51 plays a positioning role, the two limiting members 43 are connected to the base body 51 , and the protective cover 52 is fixed to the base body 51 .
  • the protective cover 52 can be detachably connected to the base body 51 .
  • the protective cover 52 can be fixed to the base body through fasteners (such as bolts), or the protective cover 52 can be snapped onto the base body 51 .
  • the internal space of the protective cover 52 can accommodate the rotating shaft 30 and the plurality of pressure rollers 10b.
  • the opening 520 is an area provided by the protective cover 52 for the pressure rollers 10b to be exposed.
  • the opening 520 is connected with the internal space of the protective cover 52.
  • the pressure rollers 10b The extrusion plane 101 can be exposed from the opening 520 .
  • the step surface 523 is provided along the edge of the opening 520 to facilitate the cooperation between the container and the material that cooperates with the step surface 523 .
  • the protective cover 52 can protect the rotating shaft 30 and the pressure roller 10b, and reduce the risk of impurities entering the protective cover 52 and affecting the rotation of the rotating shaft 30 and the pressure roller 10b.
  • the step surface 523 is provided along the edge of the opening 520. After the container is matched with the step surface 523, it is convenient for the material matched with the extrusion piece 10 to enter the container.
  • the protective cover 52 includes a first cover 521 and a second cover 522 that are oppositely arranged along the feeding direction Z.
  • the first cover 521 and the second cover 522 are mutually exclusive. After being fastened, the step surface 523 is provided on the first cover body 521 .
  • first cover body 521 and the second cover body 522 are fastened together, the first cover body 521 and the second cover body 522 can be connected by snap-fitting or by locking parts (such as bolts).
  • the first cover body 521 and the second cover body 522 are interlocked to form a space for accommodating the rotating shaft 30 and the plurality of pressure rollers 10b, which is easy to assemble and disassemble.
  • the stepped surface 523 is provided on the first cover body 521 to facilitate the cooperation between the container and the protective cover 52 .
  • the extrusion unit 100 further includes a first pulley 61 , a second pulley 62 and a transmission belt 63 .
  • the first pulley 61 is connected to the output end of the driving member 20
  • the second pulley 62 is connected to The rotating shaft 30 and the transmission belt 63 are sleeved on the first pulley 61 and the second pulley 62 .
  • the first pulley 61 is connected to the output end of the driving member 20 , and the driving member 20 can drive the first pulley 61 to rotate.
  • the second pulley 62 is connected to the rotating shaft 30 , and the second pulley 62 can drive the rotating shaft 30 to rotate.
  • the transmission belt 63 is sleeved on the first pulley 61 and the second pulley 62. When the first pulley 61 rotates, the transmission belt 63 can transmit power to the second pulley 62 to rotate the second pulley 62.
  • the driving member 20 may be a servo motor, and the first pulley 61 is connected to the output end of the servo motor.
  • the driving member 20 and the rotating shaft 30 are connected through the first pulley 61, the second pulley 62 and the transmission belt 63, so that the power transmission is stable.
  • Figure 20 is an exploded schematic diagram of a partial structure of an extrusion unit provided by some embodiments of the present application.
  • the extrusion unit 100 further includes a first base 50 and a second base 70 , the extrusion piece 10 is disposed on the first base 50 , and the first base 50 is floatable along the first direction X. is disposed on the second base 70, and the first direction X is perpendicular to the extrusion plane 101.
  • the direction indicated by the letter X is the first direction, and the first base 50 can move along the first direction X relative to the second base 70 .
  • the extrusion part 10 is disposed on the first base 50 .
  • the first base 50 and the second base 70 are in floating fit.
  • the extrusion part 10 can follow the first base 50 to move relative to the second base 70 .
  • the first base 50 realizes the installation and positioning of the extruded part 10
  • the first base 50 and the second base 70 are floatingly matched
  • the second base 70 realizes the support and positioning of the first base 50, In order to facilitate the extrusion part 10 to cooperate with the material.
  • a second guide rail 71 is provided on the second base 70 , the second guide rail 71 extends along the first direction X, and the first base 50 is slidably disposed. on the second guide rail 71.
  • the second guide rail 71 is a guide rail provided on the second base 70 , and the second guide rail 71 constrains the movement trajectory of the first base 50 relative to the second base 70 .
  • the first base 50 and the second base 70 are slidably matched through the second guide rail 71 so that the first base 50 can move stably relative to the second base 70 .
  • the limiting member 43 is slidably engaged with the second guide rail 71 so that the rotating shaft 30 and the plurality of pressure rollers 10 b can move relative to the second base 70 .
  • the extrusion unit 100 also includes a limiting block 81, a guide rod 82 and an elastic member 83.
  • the limiting block 81 is provided on the second base 70.
  • the block 81 is provided with a through hole 811, and the guide rod 82 extends along the first direction
  • the guide rod 82 is elastically supported between the limiting block 81 and the first base 50 .
  • the limiting block 81 can be detachably connected to the second base 70.
  • the limiting block 81 can be connected to the second base 70 through a locking piece (such as a bolt).
  • the limiting block 81 can also be connected to the second base 70.
  • 70 is snap-connected; alternatively, the limiting block 81 can be welded to the second base 70 .
  • the limiting block 81 may be located on a side of the first base 50 away from the extruded piece 10 .
  • the through hole 811 is a hole opened in the limiting block 81 .
  • the through hole 811 penetrates the limiting block 81 along the first direction X to facilitate cooperation with the guide rod 82 .
  • the guide rod 82 extends along the first direction X, that is, the extending direction of the central axis of the guide rod 82 is parallel to the first direction X.
  • One end of the guide rod 82 may be provided with threads, and the guide rod 82 may be threadedly connected to the first base 50 .
  • the guide rod 82 cooperates with the through hole 811 to facilitate the first base 50 to move in the first direction X relative to the second base 70 .
  • the cross section of the guide rod 82 may be of any shape, such as circular, polygonal, etc. Alternatively, the cross section of the guide rod 82 may be circular, and correspondingly, the through hole 811 may be a circular hole.
  • the cross section of the guide rod 82 refers to the cross section of the guide rod 82 taken perpendicular to the central axis of the guide rod 82 .
  • the elastic member 83 is an elastically deformable component, and the elastic member 83 may be a spring, rubber, or the like.
  • the two guide rods 82 correspond to the two limiting blocks 81 one-to-one, along the extension direction of the rotating shaft 30 (that is, the extension direction Y of the first axis P ), the two limit blocks 81 are arranged at intervals.
  • the elastic member 83 is elastically supported between the limiting block 81 and the first base 50, and the guide rod 82 guides the elastic member 83 so that the extrusion member 10 can cooperate with the material; when the extrusion member 10 is subjected to When the force along the first direction Floating in one direction X reduces the risk of damage to the extruded part 10 due to excessive force.
  • the feeding device 1000 further includes a detection unit 90, which is disposed between the first base 50 and the second base 70.
  • the detection unit 90 is used to detect extrusion.
  • the component 10 is subjected to a force along the first direction X.
  • the detection unit 90 may be a pressure sensor.
  • the extrusion piece 10 is disposed on the first base 50. When the extrusion piece 10 receives a force along the first direction X, the force is transmitted to the first base 50.
  • the detection unit 90 can be disposed on the first base 50. In order to facilitate detection of the force along the first direction X received by the extrusion part 10 .
  • the elastic member 83 is elastically supported on the first base 50 , and the elastic member 83 exerts an elastic force along the first direction X on the first base 50 .
  • the elastic member 83 may be elastically supported on the detection unit 90 .
  • the detection unit 90 can detect the initialization of the extruded part 10 When acting on the material, the material exerts a reaction force on the extrusion part 10, so as to grasp the force exerted by the extrusion part 10 on the material.
  • the driving member 20 is provided on the second base 70 .
  • the second base 70 can position and support the driving member 20, and at the same time, it can also reduce interference between the driving member 20 and other components.
  • the extrusion unit 100 further includes a first pulley 61 , a second pulley 62 and a transmission belt 63 , although the first base 50 can move along the first direction X relative to the second base 70
  • the movement distance of the first base 50 relative to the second base 70 is small (eg, less than 2 mm), which has little impact on the cooperation between the transmission belt 63 and the first pulley 61 and the second pulley 62 .
  • two extrusion units 100 are provided.
  • the two extrusion units 100 are arranged oppositely along the first direction X.
  • the first direction X is perpendicular to the extrusion plane 101.
  • a clamping space for clamping materials is formed between the pressing units 100 .
  • the two extrusion units 100 have the same structure.
  • the two extrusion units 100 are arranged oppositely along the first direction X to form a clamping space.
  • the two extrusion units 100 act on the material on both sides of the material along the first direction X.
  • the material is extruded from the first direction X to reduce the size of the material in the first direction X to facilitate loading of the material into the container.
  • the two extrusion units 100 are arranged opposite each other along the first direction X to jointly clamp the material, further reducing the risk of the material being damaged by clamping.
  • FIG. 21 is a schematic structural diagram of a feeding device provided by other embodiments of the present application.
  • the feeding device 1000 further includes a driving mechanism 200 for driving the extrusion unit 100 to move in the direction opposite to the feeding direction Z.
  • the driving mechanism 200 may include a driving motor and a transmission assembly.
  • the transmission assembly may be a screw and a nut that cooperate with each other.
  • the driving motor is connected to one end of the screw, and the nut is sleeved on the screw and threaded with the screw.
  • the pressing unit 100 is connected to the nut, and the driving motor drives the screw to rotate, so that the nut drives the extruding unit 100 to move in the direction opposite to the material feeding direction Z.
  • the transmission assembly may also be a belt transmission assembly.
  • the driving mechanism 200 drives the extrusion unit 100 to move in the opposite direction of the material feeding direction Z, and cooperates with the extrusion part 10 to move along the first plane track segment G1 along the feeding direction Z, so that the material can be automatically loaded into the container. .
  • the feeding device 1000 further includes a frame 300, the extrusion unit 100 is installed on the frame 300, and the driving mechanism 200 is used to drive the frame 300 to move in the direction opposite to the feeding direction Z.
  • the frame 300 realizes the installation and positioning of the extrusion unit 100, and the driving mechanism 200 can drive the frame 300 to move in the direction opposite to the material feeding direction Z to facilitate loading of materials into the container.
  • the material is the electrode assembly 400 and the container is the housing 500 .
  • the width of the electrode assembly 400 is usually smaller than the width of the internal space of the casing 500 to facilitate the electrode assembly 400 to enter the casing 500 .
  • the electrode assembly 400 may have a high group margin, and the electrode assembly 400 is relatively fluffy.
  • the cross-sectional area of the electrode assembly 400 is larger than the cross-sectional area of the housing 500, that is, along the direction perpendicular to the extrusion plane. 101 direction, the size of the electrode assembly 400 is larger than the size of the internal space of the housing 500 .
  • the extrusion piece 10 extrudes the electrode assembly 400 to reduce the size of the electrode assembly 400 in the direction perpendicular to the extrusion plane 101, thereby facilitating the electrode assembly 400 to enter the housing 500. .
  • the material is the electrode assembly 400
  • the container is the casing 500, which realizes the insertion operation of the electrode assembly 400 into the casing, improves the yield rate of the battery cells, and improves the manufacturing efficiency.
  • the present application provides a feeding device 1000 for loading an electrode assembly 400 into a housing 500 having an opening.
  • the feeding device 1000 includes two extrusion units 100, a driving mechanism 200 and a frame 300.
  • the two extrusion units 100 are arranged oppositely along the first direction X, and a space between the two extrusion units 100 is used to clamp the electrode assembly 400. clamping space.
  • Each extrusion unit 100 includes a plurality of extrusion parts 10 , a driving part 20 , a rotating shaft 30 , a conversion mechanism 40 , a first pulley 61 , a second pulley 62 , a transmission belt 63 , a first base 50 and a second base 70.
  • the extrusion part 10 has an extrusion plane 101 for contacting the material forming surface.
  • the extrusion part 10 is a pressure roller 10b.
  • the extension direction of the pressure roller 10b is parallel to the extension direction of the rotating shaft 30.
  • the extrusion plane 101 is a part of the outer peripheral surface of the pressure roller 10b.
  • the cross section of the pressure roller 10b is rectangular.
  • the conversion mechanism 40 includes a pair of brackets 42 and two limiting members 43.
  • the pair of brackets 42 are arranged on the rotating shaft 30 at intervals along the axial direction of the rotating shaft 30.
  • the brackets 42 are disk-shaped, and the bracket 42 has a first hole for the rotating shaft 30 to pass through.
  • the plurality of second mounting holes 422 are arranged in one-to-one correspondence with the plurality of pressure rollers 10b.
  • the plurality of second mounting holes 422 surround the first mounting hole 421. circumferentially spaced distribution, so that the plurality of pressure rollers 10b are spaced around the rotation axis 30.
  • the pressure roller 10b has a neck 13.
  • the neck 13 is located between the end of the pressure roller 10b and the extrusion plane 101.
  • the cross-sectional area of the neck 13 is smaller than that of the pressure roller 10b and the neck 13.
  • the cross-sectional area of the adjacent portion is that the neck 13 is disposed in the second mounting hole 422.
  • the neck 13 has a clearance fit with the second mounting hole 422, and the cross-sectional area of the neck 13 is circular.
  • Both ends of the rotating shaft 30 are rotatably mounted on two limiting members 43 respectively.
  • Each limiting member 43 has a first surface 431 facing the other limiting member 43.
  • a limiting groove 4311 is provided on the first surface 431.
  • the end of the roller 10b is configured to move along the groove side of the limiting groove 4311 to form a closed track G.
  • the outer contour of the limiting groove 4311 is rectangular, and the cross section of the end of the pressure roller 10b is rectangular; the closed track G is a rectangular track.
  • the closed track G includes the first planar track segment G1, the first plane track segment G1, and the second planar track segment G1.
  • the second plane trajectory segment G2, the third plane trajectory segment G3 and the fourth plane trajectory segment G4 are arranged in parallel.
  • the first plane trajectory segment G1 and the third plane trajectory segment G3 are arranged in parallel.
  • the second plane trajectory segment G2 is parallel to the fourth plane trajectory segment G4.
  • the movement direction of the pressure roller 10b along the first planar track section G1 is the same as the feeding direction Z
  • the pressure roller 10b moves along the second planar track section G2 in the direction away from the electrode assembly 400
  • the pressure roller 10b moves along the third planar track section G2.
  • the movement direction of G3 is opposite to the feeding direction Z, and the pressure roller 10b moves toward the electrode assembly 400 along the fourth planar track segment G4.
  • the first surface 431 is also provided with an escape groove 4312.
  • the escape groove 4312 is provided at the corner of the limiting groove 4311 and communicates with the limiting groove 4311.
  • the escape groove 4312 is used to avoid the pressure roller 10b.
  • a roller 14 is installed on the end surface of the pressure roller 10b, and a guide groove 4313 is provided on the bottom surface of the limiting groove 4311.
  • the roller 14 is in rolling fit with the groove side of the guide groove 4313.
  • the central axis of the rotating shaft 30 is the first axis P.
  • the projection of the guide groove 4313 is located in the limiting groove 4311.
  • the groove side of the guide groove 4313 is compared with the limiting groove.
  • the groove sides of groove 4311 are closer to the first axis P.
  • the outer contour of the guide groove 4313 is rectangular, and the arc transition between two adjacent groove sides of the guide groove 4313 is.
  • the driving member 20 is a servo motor.
  • the first pulley 61 is connected to the output end of the driving member 20 .
  • the second pulley 62 is connected to the rotating shaft 30 .
  • the transmission belt 63 is sleeved on the first pulley 61 and the second pulley 62 .
  • the driving member 20 is used to drive the rotating shaft 30 to rotate, and the limiting member 43 is used to guide the pressure roller 10b to revolve around the first axis P along the closed trajectory G and limit the rotation of the pressure roller 10b.
  • the first base 50 includes two limiters 43, a base body 51 and a protective cover 52.
  • the base body 51 is connected to the two limiters 43.
  • the protective cover 52 is fixed to the base body 51 and is used for covering.
  • the protective cover 52 is provided with an opening 520 for exposing the pressure rollers 10b to squeeze the material.
  • the edge of the opening 520 is provided with a step surface 523, and the step surface 523 is used to contact the housing. 500 open end.
  • a second guide rail 71 is provided on the second base 70 .
  • the second guide rail 71 extends along the first direction X.
  • the first base 50 is slidably disposed on the second guide rail 71 .
  • the second base 70 is provided on the frame 300, and the driving mechanism 200 is used to drive the frame 300 to move in the direction opposite to the material feeding direction Z.
  • the driving mechanism 200 drives the frame 300 to move in the opposite direction of the feeding direction Z
  • the housing 500 follows the first base 50 to move in the opposite direction of the feeding direction Z
  • the driving member 20 drives the rotating shaft 30 to rotate
  • the pressure roller 10b moves After contacting the electrode assembly 400 , the pressure roller 10 b moves along the first plane track segment G1 .
  • the pressure rollers 10 b of the two extrusion units 100 clamp the electrode assembly 400 and drive the electrode assembly 400 into the housing 500 .
  • the pressure roller 10b forms surface contact with the electrode assembly 400, so that there is a large contact area between the pressure roller 10b and the electrode assembly 400.
  • the force exerted by the pressure roller 10b on the material is dispersed, and the force exerted on the material by the pressure roller 10b can be dispersed.
  • the risk of damage to the electrode assembly 400 is reduced, thereby improving the yield rate and production efficiency of the battery cells.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Coating Apparatus (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

一种用于将物料装入具有开口的容器中的送料装置(1000)，包括挤压单元(100)，挤压单元包括挤压件(10)以及驱动件(20)，挤压件具有挤压平面(101)，驱动件用于驱动所述挤压件沿闭合轨迹(G)循环运动，所述闭合轨迹包括第一平面轨迹段(G1)，当所述挤压件沿所述第一平面轨迹段运动时，所述挤压平面与所述物料形成面接触并保持沿入料方向(Z)延伸，所述入料方向为所述物料相对于所述壳体(500)的运动方向。该送料装置能够减小送料过程中对物料的损伤。

Description

送料装置 技术领域
本申请涉及产品装配技术领域，特别是涉及一种用于将物料装入容器中的送料装置。
背景技术
节能减排是汽车产业可持续发展的关键。在这种情况下，电动车辆由于其节能环保的优势成为汽车产业可持续发展的重要组成部分。而对于电动车辆而言，电池技术又是关乎其发展的一项重要因素。
在电池单体的组装过程中，通常需要利用送料装置将电极组件装入壳体内。现有技术中，送料装置容易损坏电极组件，导致电池单体的良品率和生产效率较低。因此，如何优化送料装置的结构，减小电极组件在装入壳体过程中的损伤，是电池技术中一个亟待解决的技术问题。
发明内容
本申请的目的在于提供一种送料装置，能够减小送料过程中对物料的损伤。
本申请是通过如下技术方案实现的：
第一方面，本申请提供了一种一种送料装置，用于将物料装入具有开口的容器内，所述送料装置包括挤压单元，所述挤压单元包括挤压件以及驱动件，所述挤压件具有挤压平面；所述驱动件用于驱动所述挤压件沿闭合轨迹循环运动，所述闭合轨迹包括第一平面轨迹段，当所述挤压件沿所述第一平面轨迹段运动时，所述挤压平面与所述物料形成面接触并保持沿入料方向延伸，所述入料方向为所述物料相对于所述容器的运动方向。
根据本申请实施例的送料装置，当挤压件沿第一平面轨迹段运动时，挤压平面与物料(如电极组件)的接触为面接触并且保持沿入料方向延伸，使得挤压件与物料之间具有较大的接触面积，挤压件施加于物料的作用力分散，能够降低挤压件损伤物料的风险，从而提高产品(如电池单体)的良品率和生产效率。
根据本申请的一些实施例，所述挤压件包括挤压件本体和缓冲层，所述缓冲层至少覆盖所述挤压件本体的部分表面，所述挤压平面设置于所述缓冲层上。
在上述方案中，缓冲层的设置，缓冲挤压平面对物料的挤压，以降低挤压平面对物料的损伤风险。
根据本申请的一些实施例，所述挤压件沿所述第一平面轨迹段的运动方向与所述入料方向相同。
在上述方案中，挤压件沿第一平面轨迹段的运动方向与入料方向相同，挤压件能够跟随物料沿入料方向运动，可以减小挤压件与物料之间的相对运动，减小摩擦力，便于实现物料装入容器的动作。同时，当物料为电极组件时，能够降低隔离膜被拉扯撕裂的风险，提高电池单体的良品率。
根据本申请的一些实施例，所述驱动件用于驱动所述挤压件绕第一轴线转动以使所述挤压平面靠近或远离所述物料，所述第一轴线的延伸方向垂直于所述入料方向。
在上述方案中，通过驱动件驱动挤压件绕第一轴线转动，在挤压件沿闭合轨迹循环运动的同时，以便于实现挤压平面靠近或远离物料，操作简单。
根据本申请的一些实施例，所述挤压单元还包括转轴和转换机构，所述驱动件用于驱动所述转轴旋转，所述第一轴线为所述转轴的中心轴线，所述转换机构被配置为将所述转轴的旋转运动转换为所述挤压件的沿所述闭合轨迹的循环运动。
在上述方案中，在驱动件驱动转轴旋转时，转换机构将转轴的旋转运动转换为 挤压件的沿闭合轨迹的循环运动，约束挤压件的运动轨迹，以便于挤压件在绕第一轴线运动的同时沿闭合轨迹进行循环运动。
根据本申请的一些实施例，所述转换机构包括凸轮，所述凸轮安装于所述转轴，所述凸轮在垂直于所述转轴的平面上的投影为勒洛三角形，所述挤压件为矩形框，所述矩形框套设于所述凸轮的外部，所述挤压平面设置于所述矩形框的面向所述物料的一侧。
在上述方案中，转换机构包括凸轮，凸轮在垂直于转轴的平面上的投影为勒洛三角形，矩形框套设于凸轮的外部，结构简单，基于勒洛三角形的结构，在凸轮跟随转轴转动时，凸轮能够带动矩形框运动，从而使得挤压平面靠近或远离物料。
根据本申请的一些实施例，所述转换机构还包括第一导轨，所述第一导轨用于引导所述矩形框沿所述闭合轨迹运动。
在上述方案中，通过第一导轨引导矩形框运动，对矩形框的轨迹进行约束，使得矩形框沿闭合轨迹运动。
根据本申请的一些实施例，所述挤压件为压辊，所述压辊的延伸方向平行于所述第一轴线的延伸方向，所述挤压平面为所述压辊的外周面的一部分。
在上述方案中，挤压件为压辊，结构简单，挤压平面为压辊的外周面的一部分，对物料具有较好的挤压效果。
根据本申请的一些实施例，所述压辊的横截面呈多边形。
在上述方案中，多边形的横截面，便于压辊的加工。
根据本申请的一些实施例，所述压辊的横截面呈矩形。
在上述方案中，矩形的横截面，结构简单，压辊的任一外周面可以作为挤压平面。
根据本申请的一些实施例，所述挤压单元包括多个所述压辊，多个所述压辊绕所述转轴间隔设置，多个所述压辊被配置为绕所述第一轴线公转。
在上述方案中，多个压辊绕第一轴线公转，以便于不同的压辊作用于物料，交替挤压物料，以便于物料进入容器内。
根据本申请的一些实施例，所述转换机构包括：一对支架，所述一对支架沿所述转轴的轴向间隔设置于所述转轴，多个所述压辊可活动地安装于所述一对支架；限位件，所述限位件与所述压辊配合，所述限位件用于引导所述压辊绕所述第一轴线沿所述闭合轨迹公转并限制所述压辊自转。
在上述方案中，一对支架间隔设置于转轴，多个压辊可活动地安装于一对支架，以便于实现对多个压辊的定位支撑，通过转轴带动带动一对支架旋转，能够实现多个压辊绕第一轴线公转，通过限位件与压辊配合，以使压辊沿闭合轨迹运动且限制压辊自转，挤压平面保持面向物料，多个压辊能够交替与物料配合，便于物料进入容器。
根据本申请的一些实施例，所述支架具有供所述转轴穿过的第一安装孔和供所述压辊穿过的多个第二安装孔，所述多个第二安装孔与多个所述压辊对应设置，所述多个第二安装孔围绕所述第一安装孔的周向间隔分布。
在上述方案中，转轴安装于第一安装孔，便于实现转轴的定位；多个压辊穿设于多个第二安装孔，以便于实现对多个压辊的定位。
根据本申请的一些实施例，所述压辊具有配合部，所述配合部设置于所述第二安装孔内，所述第二安装孔沿所述转轴的径向的尺寸大于所述配合部沿所述转轴的径向的尺寸。
在上述方案中，配合部与第二安装孔活动配合，以便于配合部能够相对于支架沿转轴的径向移动。
根据本申请的一些实施例，沿所述压辊的轴向，所述配合部位于所述压辊的端部和所述挤压平面之间，所述配合部的横截面积小于所述压辊的与所述配合部相邻的部分的横截面积。
在上述方案中，配合部的横截面积小于压辊的与配合部相邻的部分的横截面积，配合部为压辊的横截面积较小的部位，以便于压辊与支架装配。
根据本申请的一些实施例，所述配合部的横截面呈圆形。
在上述方案中，圆形的横截面，一方面，加工方便，另一方面，使得压辊相对于支架转动灵活。
根据本申请的一些实施例，所述支架呈圆盘状，每个所述第二安装孔沿所述支架的径向延伸至所述支架的边缘。
在上述方案中，支架呈圆盘状，便于加工制造；第二安装孔沿支架的径向延伸至支架的边缘，便于压辊的装配。
根据本申请的一些实施例，所述限位件设置有两个，所述转轴的两端分别可转动地安装于两个所述限位件，每个所述限位件具有面向另一所述限位件的第一表面，所述第一表面上设置有限位槽，所述压辊的端部被配置为沿所述限位槽的槽侧面移动，以形成所述闭合轨迹。
在上述方案中，通过限位槽约束压辊的端部的移动轨迹，具有较好的限位效果，使得压辊保持闭合轨迹运动。
根据本申请的一些实施例，所述限位槽的外轮廓呈矩形，所述闭合轨迹为矩形轨迹。
在上述方案中，限位槽的外轮廓呈矩形、闭合轨迹为矩形轨迹，便于加工，使得压辊移动稳定，同时，还能够限制挤压平面朝向物料。
根据本申请的一些实施例，所述压辊的端部的横截面呈矩形。
在上述方案中，矩形的横截面，以便于压辊与限位槽配合，使得压辊移动稳定。
根据本申请的一些实施例，所述第一表面上还设置有避让槽，所述避让槽设置于所述限位槽的拐角处且与所述限位槽连通，所述避让槽用于避让所述压辊。
在上述方案中，避让槽的设置，能够避让压辊，使得压辊移动灵活、稳定。
根据本申请的一些实施例，所述压辊的端面上安装有滚轮，所述限位槽的槽底面上设置有导向槽，所述滚轮与所述导向槽的槽侧面滚动配合。
在上述方案中，滚轮能够相对于压辊转动，滚轮与导向槽的槽侧面滚动配合，滚轮的滚动带动压辊在限位槽内移动，使得压辊移动灵活。
根据本申请的一些实施例，沿所述第一轴线的延伸方向，所述导向槽的投影位于所述限位槽内。
在上述方案中，导向槽的投影位于限位槽内，滚轮与导向槽的槽侧面滚动配合，不影响压辊的端部沿限位槽的槽侧面移动，并且便于导向槽的加工制造。
根据本申请的一些实施例，沿所述转轴的径向，所述导向槽的槽侧面相比所述限位槽的槽侧面更靠近所述第一轴线。
在上述方案中，导向槽的槽侧面相比限位槽的槽侧面更靠近第一轴线，便于通过滚轮与导向槽的槽侧面滚动配合，使得压辊移动灵活。
根据本申请的一些实施例，所述导向槽的外轮廓呈矩形。
在上述方案中，导向槽的外轮廓呈矩形，结构简单，便于加工；当闭合轨迹为矩形轨迹时，使得压辊移动灵活。
根据本申请的一些实施例，所述导向槽的相邻两个槽侧面之间圆弧过渡。
在上述方案中，相邻两个槽侧面之间圆弧过渡，便于滚轮滚动灵活、稳定。
根据本申请的一些实施例，所述挤压单元还包括第一基座，所述第一基座包括两个所述限位件，所述第一基座设置有用于抵接所述容器的开口端的台阶面。
在上述方案中，台阶面能够实现对容器的开口端的定位，以便于第一基座与容器配合，便于物料进入容器。
根据本申请的一些实施例，所述第一基座还包括基座本体和防护罩，所述基座本体连接两个所述限位件，所述防护罩固定于所述基座本体，所述防护罩用于罩设在所述转轴和多个所述压辊的外侧，所述防护罩设置有供所述压辊露出以挤压所述物料的开口，所述台阶面沿所述开口的边缘设置。
在上述方案中，防护罩能够保护转轴和压辊，降低杂质进入防护罩内而影响转轴和压辊转动的风险。
根据本申请的一些实施例，所述防护罩包括沿所述入料方向相对设置的第一罩体和第二罩体，所述第一罩体和所述第二罩体相互扣合，所述台阶面设置于所述第一罩体。
在上述方案中，第一罩体和第二罩体相互扣合，便于装配与拆卸。
根据本申请的一些实施例，所述挤压单元还包括第一带轮、第二带轮和传动带，所述第一带轮连接于所述驱动件的输出端，所述第二带轮连接于所述转轴，所述传动带套设于所述第一带轮和所述第二带轮。
在上述方案中，驱动件与转轴通过第一带轮、第二带轮和传动带实现传动连接，使得动力传递稳定。
根据本申请的一些实施例，所述挤压单元还包括第一基座和第二基座，所述挤压件设置于所述第一基座，所述第一基座沿第一方向可浮动地设置于所述第二基座，所述第一方向垂直于所述挤压平面。
在上述方案中，第一基座实现对挤压件的安装定位，第二基座与第一基座浮动配合，第二基座实现对第一基座的支撑定位，以便于挤压件与物料配合。
根据本申请的一些实施例，所述第二基座上设置有第二导轨，所述第二导轨沿所述第一方向延伸，所述第一基座可滑动地设置于所述第二导轨。
在上述方案中，第一基座与第二基座通过第二导轨滑动配合，以便于第一基座相对于第二基座移动稳定。
根据本申请的一些实施例，所述挤压单元还包括限位块、导向杆和弹性件，所述限位块设置于所述第二基座，所述限位块开设有通孔，所述导向杆沿所述第一方向延伸，所述导向杆可滑动地穿设于所述通孔，所述导向杆的一端与所述第一基座连接，所述弹性件套设于所述导向杆且弹性支撑于所述限位块与所述第一基座之间。
在上述方案中，弹性件弹性支撑于限位块与第一基座之间，导向杆对弹性件进行导向，以便于挤压件与物料配合；当挤压件受到的沿第一方向的作用力大于弹性件施加于挤压件的作用力时，挤压件朝背离物料的方向移动并挤压弹性件，使得第一基座能够沿第一方向浮动，降低挤压件受力过大而损坏的风险。
根据本申请的一些实施例，所述送料装置还包括检测单元，所述检测单元设置于所述第一基座与所述第二基座之间，所述检测单元用于检测所述挤压件受到的沿所述第一方向的作用力。
在上述方案中，在第一基座相对于第二基座移动前，弹性件施加于第一基座的作用力恒定，检测单元能够检测挤压件初始作用于物料时，物料施加于挤压件的反作用力，以便于掌握挤压件施加于物料的作用力。
根据本申请的一些实施例，所述驱动件设置于所述第二基座。
在上述方案中，第二基座能够对驱动件进行定位支撑，同时，还能够降低驱动件与其他部件之间的干涉。
根据本申请的一些实施例，所述挤压单元设置有两个，两个所述挤压单元沿第一方向相对设置，所述第一方向与所述挤压平面垂直，两个所述挤压单元之间形成用于夹持所述物料的夹持空间。
在上述方案中，两个挤压单元沿第一方向相对设置，共同夹持物料，进一步降低物料被夹持损伤的风险。
根据本申请的一些实施例，所述送料装置还包括驱动机构，所述驱动机构用于驱动所述挤压单元沿与所述入料方向相反的方向移动。
在上述方案中，通过驱动机构驱动挤压单元沿入料方向相反的方向移动，配合挤压件沿第一平面轨迹段沿入料方向运动，能够实现物料自动装入容器。
根据本申请的一些实施例，所述送料装置还包括机架，所述挤压单元安装于所述机架，所述驱动机构用于驱动所述机架沿与所述入料方向相反的方向移动。
在上述方案中，机架实现对挤压单元的安装定位，驱动机构能够驱动机架沿与入料方向相反的方向移动，以便于物料装入容器。
根据本申请的一些实施例，所述物料为电极组件，所述容器为壳体。
在上述方案中，物料为电极组件，容器为壳体，实现电极组件的入壳作业，提高电池单体的良品率，提高制造效率。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1为本申请一些实施例提供的挤压件的运动简图；
图2为本申请一些实施例提供的送料装置的结构示意图；
图3为本申请一些实施例提供的挤压件的结构示意图；
图4为本申请一些实施例提供的送料装置的立体图；
图5为本申请一些实施例提供的转换机构的结构示意图；
图6为本申请一些实施例提供的转换机构的结构示意图；
图7为本申请一些实施例提供的转换机构的结构示意图；
图8为本申请一些实施例提供的转换机构的结构示意图；
图9为本申请另一些实施例提供的转换机构的结构示意图；
图10为本申请一些实施例提供的压辊的结构示意图；
图11为本申请一些实施例提供的转轴与支架的配合示意图；
图12为本申请一些实施例提供的支架与多个压辊的配合示意图；
图13为本申请一些实施例提供的限位件的立体图；
图14为本申请一些实施例提供的压辊与限位槽的配合示意图；
图15为本申请一些实施例提供的滚轮与导向槽的配合示意图；
图16为本申请一些实施例提供的限位件的结构示意图；
图17为本申请一些实施例提供的第一基座的结构示意图；
图18为本申请一些实施例提供的第一基座的分解图；
图19为本申请一些实施例提供的驱动件与转轴的装配示意图；
图20为本申请一些实施例提供的挤压单元的部分结构的分解示意图；
图21为本申请另一些实施例提供的送料装置的结构示意图；
在附图中，附图并未按照实际的比例绘制。
标记说明：1000-送料装置；100-挤压单元；10-挤压件；10a-矩形框；10b-压辊；101-挤压平面；11-挤压件本体；12-缓冲层；13-配合部；14-滚轮；20-驱动件；30-转轴；40-转换机构；41-凸轮；42-支架；421-第一安装孔；422-第二安装孔；43-限位件；431-第一表面；4311-限位槽；4312-避让槽；4313-导向槽；50-第一基座；51-基座本体；52-防护罩；520-开口；521-第一罩体；522-第二罩体；523-台阶面；61-第一带轮；62-第二带轮；63-传动带；70-第二基座；71-第二导轨；81-限位块；811-通孔；82-导向杆；83-弹性件；90-检测单元；200-驱动机构；300-机架；400-电极组件；500-壳体；G-闭合轨迹；G1-第一平面轨迹段；G2-第二平面轨迹段；G3-第三平面轨迹段；G4-第四平面轨迹段；P-第一轴线；X-第一方向；Y-第一轴线的延伸方向；Z-入料方向。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，技术术语“中心”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
本申请中出现的“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请中，所提及的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。例如，本申请中所提及的电池可以包括电池模块或电池包等。
电池单体包括电极组件和电解液，电极组件由正极极片、负极极片和隔离膜组成。电池单体主要依靠金属离子在正极极片和负极极片之间移动来工作。正极极片包括正极集流体和正极活性物质层，正极活性物质层涂覆于正极集流体的表面，未涂敷正极活性物质层的集流体作为正极极耳。以锂离子电池为例，正极集流体的材料可以为铝，正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。负极极片包括负极集流体和负极活性物质层，负极活性物质层涂覆于负极集流体的表面，未涂敷负极活性物质层的集流体作为负极极耳。负极集流体的材料可以为铜，负极活性物质可以为碳或硅等。为了保证通过大电流而不发生熔断，正极极耳的数量为多个且层叠在一起，负极极耳的数量为多个且层叠在一起。隔离膜的材质可以为PP(polypropylene，聚丙烯)或PE(polyethylene，聚乙烯)等。
电池单体还包括壳体和盖体，壳体具有开口，盖体封闭开口，以形成密闭空间，电极组件容纳于壳体内。
电池技术的发展要同时考虑多方面的设计因素，例如，能量密度、放电容量、充放电倍率等性能参数，另外，还需要考虑电池的良品率和生产效率。
电池单体制造过程中，需要将电极组件放置于壳体内，以完成电极组件的入壳动作。
对于装配式的产品而言，产品制造过程中，往往存在将物料装入容器内的工艺流程，此工艺流程对于产品的良品率影响较大，原因在于：在产品装配过程中，通常采用送料装置将物料装入容器内，送料装置在输送物料时容易损坏物料，使得产品的良品率较低，从而生产效率较低。
例如，以电池的制造过程为例介绍，电池制造过程中，装配工艺包括：将电极组件装入壳体内；以及将电池单体装入箱体内。对于方形电池单体来说，通常采用将电极组件推送至壳体内的方式实现电极组件入壳，为了保证电池的群裕度，电极 组件需要挤压后才能进入壳体内。发明人发现通常采用运输轮对电极组件进行挤压和传输，然而，由于运输轮与电极组件为线接触，运输轮与电极组件的接触面积较小，运输轮作用于电极组件的作用力集中，容易损坏电极组件，导致电池单体的良品率较低，生产效率较低。
鉴于此，为了解决物料装入容器动作导致产品的良品率和生产效率较低的问题，发明人经过深入研究，设计了一种技术方案，将挤压件的与物料接触的挤压面设计为挤压平面，挤压平面与物料之间具有较大的接触面积，挤压件施加于物料的作用力分散，能够降低挤压件损伤物料的风险，从而提高产品的良品率和生产效率。
在电池单体装配过程中，当物料为电极组件，容器为壳体时，电极组件可以为高群裕度、较为蓬松的结构，该送料装置对于电极组件具有较好的挤压效果，且不容易损伤电极组件，便于实现电极组件装入壳体的动作。本申请的送料装置，除了应用于电池装配过程外，还可以应用于其他物料装入容器的场景，以提高产品的良品率和生产效率。
请参照图1和图2，图1为本申请一些实施例提供的挤压件的运动简图，图2为本申请一些实施例提供的送料装置的结构示意图。根据本申请的一些实施例，本申请提供了一种送料装置1000，送料装置1000用于将物料装入具有开口的容器内，送料装置1000包括挤压单元100，挤压单元100包括挤压件10以及驱动件20，挤压件10具有挤压平面101；驱动件20用于驱动挤压件10沿闭合轨迹G循环运动，闭合轨迹G包括第一平面轨迹段G1，当挤压件10沿第一平面轨迹段G1运动时，挤压平面101与物料形成面接触并保持沿入料方向Z延伸，入料方向Z为物料相对于容器的运动方向。
图中，Z方向所指示的方向为入料方向。
挤压单元100用于与另一挤压单元在垂直于挤压平面101的方向设置，以使挤压单元100与另一挤压单元之间形成夹持空间，夹持空间用于夹持物料，挤压单元100对物料进行挤压，以使得物料在垂直于挤压平面101的方向上的尺寸减小，便于物料进入容器内。需要指出的是，另一挤压单元可以与挤压单元100的结构一致，也可以不一致，例如，另一挤压单元可以为运输轮，以对挤压单元100提供挤压支撑。
挤压件10为用于与物料接触并挤压物料的部件，挤压平面101为挤压件10的用于与物料形成面接触的平面。
驱动件20为提供动力的部件，以驱动挤压件10沿闭合轨迹G循环运动。
闭合轨迹G为首尾闭合的轨迹，挤压件10能够沿闭合轨迹G循环运动。第一平面轨迹段G1为闭合轨迹G的一组成部分，第一平面轨迹段G1的延伸方向与入料方向Z平行。挤压件10沿第一平面轨迹段G1运动时，挤压件10沿第一平面轨迹段G1的运动方向可以是入料方向Z，或者，也可以是与入料方向Z相反的方向，又或者，还可以是第一平面轨迹段G1所在平面内的任意方向。需要指出的是，图中的闭合轨迹G为矩形轨迹，仅为示意闭合形式，还可以是三角形、五角形、圆弧加平面段等其他形状，只要保证闭合轨迹G包括一段平面段(即第一平面轨迹段G1)，其他部分连接该段平面段形成一个闭合轨迹即可。
当挤压件10沿第一平面轨迹段G1运动时，挤压平面101与物料形成面接触，并且挤压平面101保持沿入料方向Z延伸，挤压平面101与物料保持接触，以便于物料装入壳体内。
根据本申请实施例的送料装置1000，挤压平面101与物料的接触为面接触，使得挤压件10与物料之间具有较大的接触面积，挤压件10施加于物料的作用力分散，能够降低挤压件10损伤物料的风险，从而提高产品的良品率和生产效率。
请参照图3，图3为本申请一些实施例提供的挤压件的结构示意图。根据本申请的一些实施例，挤压件10包括挤压件本体11和缓冲层12，缓冲层12至少覆盖挤压件本体11的部分表面，挤压平面101设置于缓冲层12上。
挤压件本体11为挤压件10的组成部分，具有较高的强度，以便于与物料配合。
缓冲层12为具有弹性的部件，缓冲层12能够发生弹性变形而吸收应力。
缓冲层12可以覆盖挤压件本体11的全部表面，或者，缓冲层12也可以覆盖挤压件本体11的部分表面。
缓冲层12在挤压件本体11的表面的覆盖形式为多种，例如，缓冲层12可以覆盖挤压件本体11的面向物料的表面，以在挤压件本体11与物料之间形成缓冲；或者，缓冲层12可以覆盖挤压件本体11的周面，也即，缓冲层12可以绕挤压件本体11的轮廓设置，以与挤压件本体11的表面具有较大的接触面积。
缓冲层12与挤压件本体11的连接方式可以为多种，例如，缓冲层12可以橡胶层，缓冲层12粘接于挤压件本体11的表面，或者，缓冲层12也可以胶层，缓冲层12涂敷于挤压件本体11的表面。
在上述方案中，缓冲层12的设置，缓冲挤压平面101对物料的挤压，以降低挤压平面101对物料的损伤风险。
根据本申请的一些实施例，如图2所示，挤压件10沿第一平面轨迹段G1的运动方向与入料方向Z相同。
挤压件10沿第一平面轨迹段G1的运动方向与入料方向Z相同，挤压件10能够跟随物料沿入料方向Z运动，可以减小挤压件10与物料之间的相对运动，减小摩擦力，便于实现物料装入容器的动作。同时，当物料为电极组件时，能够降低隔离膜被拉扯撕裂的风险，提高电池单体的良品率。
请参照图1和图2，并进一步参加图4，图4为本申请一些实施例提供的送料装置的立体图。根据本申请的一些实施例，驱动件20用于驱动挤压件10绕第一轴线P转动以使挤压平面101靠近或远离物料，第一轴线P的延伸方向垂直于入料方向Z。
图中，字母Y指示的方向为第一轴线P的延伸方向。
第一轴线P为挤压件10的转动轴线，第一轴线P的延伸方向Y垂直于入料方向Z，以使得挤压平面101能够跟随挤压件10绕第一轴线P转动时靠近或远离物料。
当驱动件20驱动挤压件10绕第一轴线P转动时，挤压件10能够沿闭合轨迹G循环运动。
同时，第一轴线P的延伸方向Y垂直于入料方向Z，挤压平面101在第一轴线P的延伸方向Y上的尺寸可以较大，以便于挤压平面101具有较大的面积。
在上述方案中，通过驱动件20驱动挤压件10绕第一轴线P转动，在挤压件10沿闭合轨迹G循环运动的同时，以便于实现挤压平面101靠近或远离物料，操作简单。
请参照图5至图9，图5至图8为本申请一些实施例提供的转换机构的结构示意图，图9为本申请另一些实施例提供的转换机构的结构示意图。根据本申请的一些实施例，挤压单元100还包括转轴30和转换机构40，驱动件20用于驱动转轴30旋转，第一轴线P为转轴30的中心轴线，转换机构40被配置为将转轴30的旋转运动转换为挤压件10的沿闭合轨迹G(请参见图2)的循环运动。
转轴30能够绕第一轴线P旋转，挤压件10能够跟随转轴30的旋转而沿闭合轨迹G运动。
转换机构40为实现转轴30的旋转运动方式转换的机构，转换机构40用于将转轴30的旋转运动转换为挤压件10的沿闭合轨迹G的循环运动。
在驱动件20驱动转轴30旋转时，转换机构40将转轴30的旋转运动转换为挤压件10的沿闭合轨迹G的循环运动，约束挤压件10的运动轨迹，以便于挤压件10在绕第一轴线P运动的同时沿闭合轨迹G进行循环运动。
根据本申请的一些实施例，如图5至图8所示，转换机构40包括凸轮41，凸轮41安装于转轴30，凸轮41在垂直于转轴30的平面上的投影为勒洛三角形，挤压件10为矩形框10a，矩形框10a套设于凸轮41的外部，挤压平面101设置于矩形框10a的面向物料的一侧。
凸轮41为转换机构40的组成部分，凸轮41安装于转轴30且能够跟随转轴30绕第一轴线P旋转。
勒洛三角形又称鲁洛克斯三角形、莱洛三角形或圆弧三角形。
矩形框10a套设于凸轮41的外部，凸轮41的部分端部(勒洛三角形的顶点所在位置)与矩形框10a的内壁接触，例如，凸轮41的两个端部与矩形框10a的相邻的两个内壁接触。如图5至图8示出了凸轮41驱动矩形框10a沿闭合轨迹G(请参见图2)运动过程。
当凸轮41跟随转轴30旋转时，凸轮41的端部驱动矩形框10a沿闭合轨迹G运动，矩形框10a运动过程中，挤压平面101朝向物料。
在上述方案中，凸轮41在垂直于转轴30的平面上的投影为勒洛三角形，矩形框10a套设于凸轮41的外部，结构简单，基于勒洛三角形的结构，在凸轮41跟随转轴30转动时，凸轮41能够带动矩形框10a运动，从而使得挤压平面101靠近或远离物料。
根据本申请的一些实施例，转换机构40还包括第一导轨，第一导轨用于引导矩形框10a沿闭合轨迹G运动。
第一导轨为用于引导矩形框10a运动的导轨，矩形框10a与第一导轨滑动配合。
在凸轮41驱动矩形框10a运动时，第一导轨约束矩形框10a的轨迹，以使得矩形框10a沿闭合轨迹G运动。
根据本申请的一些实施例，如图9所示，挤压件10为压辊10b，压辊10b的延伸方向平行于第一轴线P的延伸方向Y，挤压平面101为压辊10b的外周面的一部分。
压辊10b的延伸方向平行于第一轴线P的延伸方向Y，也即，压辊10b的中心轴线的延伸方向与第一轴线P的延伸方向Y平行。
压辊10b的外周面为压辊10b的围绕压辊10b的中心轴线分布的表面。挤压平面101可以为压辊10b的外周面中部分呈平面的区域。
在上述方案中，挤压件10为压辊10b，结构简单，挤压平面101为压辊10b的外周面的一部分，对物料具有较好的挤压效果。
请参照图10，图10为本申请一些实施例提供的压辊的结构示意图。根据本申请的一些实施例，压辊10b的横截面呈多边形。
压辊10b的横截面是指压辊10b由垂直于压辊10b的中心轴线的平面截得的截面。压辊10b的横截面为多边形指的是压辊10b作用于物料的部分的横截面为多边形，其他部分可以为多边形也可以为其他形状。
在上述方案中，多边形的横截面，便于压辊10b的加工。
根据本申请的一些实施例，压辊10b的横截面呈矩形。
矩形的横截面，结构简单，压辊10b的任一外周面可以作为挤压平面101。压辊10b的横截面为矩形形指的是压辊10b作用于物料的部分的横截面为矩形，其他部分可以为多边形也可以为其他形状。
根据本申请的一些实施例，如图9所示，挤压单元100包括多个压辊10b，多个压辊10b绕转轴30间隔设置，多个压辊10b被配置为绕第一轴线P公转。
多个压辊10b绕转轴30间隔设置，也即，多个压辊10b绕第一轴线P间隔设置，并且多个压辊10b能够绕第一轴线P公转。
在上述方案中，多个压辊10b绕第一轴线P公转，以便于不同的压辊10b作用于物料，交替挤压物料，以便于物料进入容器内。
根据本申请的一些实施例，如图9和图10所示，转换机构40包括一对支架42以及限位件43，一对支架42沿转轴30的轴向间隔设置于转轴30，多个压辊10b可活动地安装于一对支架42；限位件43与压辊10b配合，限位件43用于引导压辊10b绕第一轴线P沿闭合轨迹G公转并限制压辊10b自转。
一对支架42沿转轴30的轴向设置于转轴30，一对支架42与转轴30传动配合且能够跟随转轴30绕第一轴线P旋转，例如，支架42与转轴30通过键连接。挤压平面101可以位于一对支架42之间，以便于挤压平面101与物料配合。转轴30的 轴向与第一轴线P的延伸方向Y平行。
一对支架42可以在转轴30的轴向上靠近转轴30的两个端部，每个支架42靠近转轴30的对应的端部，以使得一对支架42之间具有较大的空间。
支架42为起到支撑作用的部件，多个压辊10b可活动地安装于一对支架42，压辊10b能够相对于一对支架42产生位置移动，例如，压辊10b能够靠近或远离第一轴线P，当驱动件20驱动转轴30旋转时，压辊10b能够朝远离第一轴线P的方向运动。
限位件43为限制压辊10b的移动轨迹的部件，并且限位件43还能够在压辊10b沿闭合轨迹G运动时限制压辊10b自转。限位件43与压辊10b配合的方式可以为，限位件43与压辊10b的端部配合，以降低与挤压平面101的干涉。
当压辊10b与支架42装配后，沿第一轴线P的延伸方向Y，压辊10b的部分区域位于支架42的背离另一支架42的一侧，该部分压辊10b为压辊10b的端部。
在上述方案中，一对支架42间隔设置于转轴30，多个压辊10b可活动地安装于一对支架42，以便于实现对多个压辊10b的定位支撑，通过转轴30带动带动一对支架42旋转，能够实现多个压辊10b绕第一轴线P公转，通过限位件43与压辊10b配合，以使压辊10b沿闭合轨迹G运动且限制压辊10b自转，挤压平面101保持面向物料，多个压辊10b能够交替与物料配合，便于物料进入容器。
请参照图11和图12，图11为本申请一些实施例提供的转轴与支架的配合示意图，图12为本申请一些实施例提供的支架与多个压辊的配合示意图。根据本申请的一些实施例，支架42具有供转轴30穿过的第一安装孔421和供压辊10b穿过的多个第二安装孔422，多个第二安装孔422与多个压辊10b对应设置，多个第二安装孔422围绕第一安装孔421的周向间隔分布。
第一安装孔421和第二安装孔422可以为支架42上设置的两个通孔，第一安装孔421和第二安装孔422可以沿转轴30的轴向贯穿支架42。第一安装孔421用于转轴30穿过，转轴30穿设于第一安装孔421内，转轴30能够带动支架42旋转。第二安装孔422用于压辊10b穿过，压辊10b能够在第二安装孔422内活动。
多个第二安装孔422与多个压辊10b对应设置，第二安装孔422的数量与压辊10b的数量相同，并且每个安装孔内设置一个压辊10b。
多个第二安装孔422绕第一安装孔421的周向间隔分布，也即，第一安装孔421的中心轴线与转轴30的中心轴线(即第一轴线P)共线，多个第二安装孔422绕第一安装孔421的中心轴线间隔分布，以使得多个压辊10b绕转轴30间隔设置。
在上述方案中，转轴30安装于第一安装孔421，便于实现转轴30的定位；多个压辊10b穿设于多个第二安装孔422，以便于实现对多个压辊10b的定位。
根据本申请的一些实施例，压辊10b具有配合部13，配合部13设置于第二安装孔422内，第二安装孔422沿转轴30的径向的尺寸大于配合部13沿转轴30的径向的尺寸。
配合部13为压辊10b的局部凹陷部位，也即，压辊10b的局部区域的外周面朝向压辊10b的中心轴线凹陷形成配合部13。也可以理解为，压辊10b的局部区域绕压辊10b的中心轴线挖空部分结构后，在该局部区域剩余的部分为配合部13。配合部13位于压辊10b的端部和挤压平面101之间，配合部13用于与支架42配合。
配合部13设置于第二安装孔422内，配合部13可以与第二安装孔422间隙配合，例如，第二安装孔422沿转轴30的径向的尺寸大于配合部13沿转轴30的径向的尺寸，以使配合部13能够相对于支架42靠近或远离第一轴线P。在驱动件20驱动转轴30旋转时，转轴30带动支架42旋转，由于配合部13与第二安装孔422间隙配合，配合部13能够在第二安装孔422内活动，限位件43引导压辊10b绕第一轴线P沿闭合轨迹G公转，并且限制压辊10b自转，以使挤压平面101保持面向物料。
在上述方案中，配合部13与第二安装孔422活动配合，以便于配合部13能够相对于支架42沿转轴30的径向移动。
请参照图10至图12，根据本申请的一些实施例，沿压辊10b的轴向，配合部13位于压辊10b的端部和挤压平面101之间，配合部13的横截面积小于压辊10b的 与配合部13相邻的部分的横截面积。
压辊10b的横截面积是指压辊10b被垂直于压辊10b的中心轴线的平面截得的截面的面积。同理，配合部13的横截面积是指配合部13被垂直于压辊10b的中心轴线的平面截得的截面的面积。配合部13的横截面积小于压辊10b的与配合部13相邻的部分的横截面积，配合部13的横截面积可以为压辊10b的横截面积最小处，或者，也可以为压辊10b的局部区域的横截面积较小处。
配合部13位于压辊10b的端部和挤压平面101之间，换句话说，挤压平面101位于两个配合部13之间，也即，挤压平面101位于两个支架42之间，避免支架42与物料干涉。
第二安装孔422在绕第一轴线P的方向上的尺寸可以小于压辊10b在绕第一轴线P的方向上的尺寸，也即，沿第一轴线P的延伸方向Y，压辊10b在支架42上的投影与第二安装孔422部分重叠，以便于压辊10b与支架42装配后，限制压辊10b沿第一轴线P的延伸方向Y脱离支架42。
在上述方案中，配合部13的横截面积小于压辊10b的与配合部13相邻的部分的横截面积，配合部13为压辊10b的横截面积较小的部位，以便于压辊10b与支架42装配。
根据本申请的一些实施例，配合部13的横截面呈圆形。
圆形的横截面，一方面，加工方便，另一方面，使得压辊10b相对于支架42转动灵活。
根据本申请的一些实施例，如图11和图12所示，支架42呈圆盘状，每个第二安装孔422沿支架42的径向延伸至支架42的边缘。
支架42的轮廓大致为圆盘状，每个第二安装孔422沿支架42的径向延伸至支架42的边缘，也即，第二安装孔422由支架42的边缘朝向支架42的中心轴线延伸，压辊10b可以由支架42的边缘进入第二安装孔422内。
在上述方案中，支架42呈圆盘状，便于加工制造；第二安装孔422沿支架42的径向延伸至支架42的边缘，便于压辊10b的装配。
请参照图11，并进一步参照图13和图14，图13为本申请一些实施例提供的限位件的立体图，图14为本申请一些实施例提供的压辊与限位槽的配合示意图。根据本申请的一些实施例，限位件43设置有两个，转轴30的两端分别可转动地安装于两个限位件43，每个限位件43具有面向另一限位件43的第一表面431，第一表面431上设置有限位槽4311，压辊10b的端部被配置为沿限位槽4311的槽侧面移动，以形成所述闭合轨迹G。
转轴30的两端分别可转动地安装于两个限位件43，转轴30与两个限位件43转动配合，转轴30带动支架42旋转时，多个压辊10b与两个限位件43配合，保证压辊10b沿闭合轨迹G运动稳定。
第一表面431为限位件43的面向另一限位件43的表面，转轴30的中心轴线的延伸方向与第一表面431所在的平面相交。
限位槽4311为设置于第一表面431上的槽，可以理解为，限位槽4311为限位件43由第一表面431朝向背离另一个限位件43凹陷形成的区域。
限位槽4311用于与压辊10b配合，以限制压辊10b的移动轨迹。压辊10b的端部伸入限位槽4311内，压辊10b的端部的周面能够与限位槽4311的槽侧面接触，在转轴30带动支架42旋转时，压辊10b跟随支架42绕第一轴线P转动时，压辊10b的端部能够沿限位槽4311的槽侧面移动，以形成闭合轨迹G。
在上述方案中，通过限位槽4311约束压辊10b的端部的移动轨迹，具有较好的限位效果，使得压辊10b保持沿闭合轨迹G运动。
根据本申请的一些实施例，限位槽4311的外轮廓呈矩形，闭合轨迹G为矩形轨迹。
限位槽4311的外轮廓呈矩形、闭合轨迹G为矩形轨迹，便于加工，使得压辊10b移动稳定，同时，还能够限制挤压平面101朝向物料。
根据本申请的一些实施例，压辊10b的端部的横截面呈矩形。
矩形的横截面，以便于与限位槽4311的外轮廓匹配，使得压辊10b的端部与限位槽4311的槽侧面具有较大的接触面积，以便于压辊10b与限位槽4311配合，使得压辊10b移动稳定。
根据本申请的一些实施例，如图13和图14所示，第一表面431上还设置有避让槽4312，避让槽4312设置于限位槽4311的拐角处且与限位槽4311连通，避让槽4312用于避让压辊10b。
避让槽4312为设置于第一表面431上的槽，避让槽4312与限位槽4311连通，加工制造方便。
避让槽4312设置于限位槽4311的拐角处，以避让压辊10b的拐角。例如，当限位槽4311的外轮廓呈矩形时，避让槽4312可以分布于限位槽4311的四角。
避让槽4312的设置，能够避让压辊10b，使得压辊10b移动灵活、稳定。
请参照图10和图13，并进一步参照图15，图15为本申请一些实施例提供的滚轮与导向槽的配合示意图。根据本申请的一些实施例，压辊10b的端面上安装有滚轮14，限位槽4311的槽底面上设置有导向槽4313，滚轮14与导向槽4313的槽侧面滚动配合。
导向槽4313为设置于限位槽4311的槽底面上的槽，导向槽4313具有导向的功能，用于与滚轮14配合。
滚轮14安装于压辊10b的端面上，滚轮14能够相对于压辊10b转动，滚轮14的转动轴线可以与压辊10b的中心轴线共线，使得压辊10b沿限位槽4311的槽侧面移动时，滚轮14能够沿导向槽4313的槽侧面滚动。滚轮14可以为凸轮随动器。
在上述方案中，滚轮14能够相对于压辊10b转动，滚轮14与导向槽4313的槽侧面滚动配合，滚轮14的滚动带动压辊10b在限位槽4311内移动，使得压辊10b移动灵活。
请参照图16，图16为本申请一些实施例提供的限位件的结构示意图。根据本申请的一些实施例，沿第一轴线P的延伸方向Y，导向槽4313的投影位于限位槽4311内。
在上述方案中，导向槽4313的投影位于限位槽4311内，使得滚轮14在压辊10b的端面上的投影位于压辊10b的端面内，滚轮14与导向槽4313的槽侧面滚动配合，不影响压辊10b的端部沿限位槽4311的槽侧面移动，并且便于导向槽4313的加工制造。
根据本申请的一些实施例，如图16所示，沿转轴30的径向，导向槽4313的槽侧面相比限位槽4311的槽侧面更靠近第一轴线P。
在上述方案中，导向槽4313的槽侧面相比限位槽4311的槽侧面更靠近第一轴线P，沿第一轴线P的延伸方向Y，导向槽4313的投影可以位于限位槽4311内，便于通过滚轮14与导向槽4313的槽侧面滚动配合，使得压辊10b移动灵活。
根据本申请的一些实施例，导向槽4313的外轮廓呈矩形。
在上述方案中，导向槽4313的外轮廓呈矩形，结构简单，便于加工；当闭合轨迹G为矩形轨迹时，导向槽4313的外轮廓呈环形，使得压辊10b移动灵活。
根据本申请的一些实施例，如图16所示，导向槽4313的相邻两个槽侧面之间圆弧过渡。
在上述方案中，相邻两个槽侧面之间圆弧过渡，便于滚轮14滚动灵活、稳定。
请参照图17，图17为本申请一些实施例提供的第一基座的结构示意图。根据本申请的一些实施例，挤压单元100还包括第一基座50，第一基座50包括两个限位件43，第一基座50设置有用于抵接容器的开口端的台阶面523。
第一基座50为定位用的部件，两个限位件43为第一基座50的两个组成部分。
台阶面523为第一基座50上设置的、用于抵接容器的开口端的面。
在上述方案中，台阶面523能够实现对容器的开口端的定位，以便于第一基座50与容器配合，便于物料进入容器。
请参照图17，并进一步参照图18，图18为本申请一些实施例提供的第一基座的分解图。根据本申请的一些实施例，第一基座50还包括基座本体51和防护罩52，基座本体51连接两个限位件43，防护罩52固定于基座本体51，防护罩52用于罩设在转轴30和多个压辊10b的外侧，防护罩52设置有供压辊10b露出以挤压物料的开口520，台阶面523沿开口520的边缘设置。
基座本体51起到定位的作用，两个限位件43连接于基座本体51，防护罩52固定于基座本体51。
防护罩52可以与基座本体51可拆卸地连接，例如，防护罩52可以通过固定件(如螺栓)固定于基座本体，或者，防护罩52可以卡接于基座本体51。
防护罩52的内部空间能够容纳转轴30和多个压辊10b，开口520为防护罩52设置的、用于压辊10b露出的区域，该开口520与防护罩52的内部空间连通，压辊10b的挤压平面101能够从开口520处露出。
台阶面523沿开口520的边缘设置，以便于与台阶面523配合的容器与物料配合。
在上述方案中，防护罩52能够保护转轴30和压辊10b，降低杂质进入防护罩52内而影响转轴30和压辊10b转动的风险。同时，台阶面523沿开口520的边缘设置，在容器与台阶面523配合后，便于与挤压件10配合的物料进入容器。
根据本申请的一些实施例，如图18所示，防护罩52包括沿入料方向Z相对设置的第一罩体521和第二罩体522，第一罩体521和第二罩体522相互扣合，台阶面523设置于第一罩体521。
第一罩体521和第二罩体522扣合后，第一罩体521和第二罩体522可以卡接连接，也可以通过锁紧件(如螺栓)连接。
第一罩体521和第二罩体522相互扣合，围成用于容纳转轴30和多个压辊10b的空间，装配便捷，且便于拆卸。台阶面523设置于第一罩体521，便于容器与防护罩52的配合。
请参照图19，图19为本申请一些实施例提供的驱动件与转轴的装配示意图。根据本申请的一些实施例，挤压单元100还包括第一带轮61、第二带轮62和传动带63，第一带轮61连接于驱动件20的输出端，第二带轮62连接于转轴30，传动带63套设于第一带轮61和第二带轮62。
第一带轮61连接于驱动件20的输出端，驱动件20能够驱动第一带轮61旋转。第二带轮62连接于转轴30，第二带轮62能够带动转轴30旋转。传动带63套设于第一带轮61和第二带轮62，当第一带轮61旋转时，传动带63能够将动力传递至第二带轮62，以使第二带轮62旋转。
驱动件20可以为伺服电机，第一带轮61连接于伺服电机的输出端。
在上述方案中，驱动件20与转轴30通过第一带轮61、第二带轮62和传动带63实现传动连接，使得动力传递稳定。
请参照图17，并进一步参照图20，图20为本申请一些实施例提供的挤压单元的部分结构的分解示意图。根据本申请的一些实施例，挤压单元100还包括第一基座50和第二基座70，挤压件10设置于第一基座50，第一基座50沿第一方向X可浮动地设置于第二基座70，第一方向X垂直于挤压平面101。
图中，字母X所示的方向为第一方向，第一基座50能够相对于第二基座70沿第一方向X移动。
挤压件10设置于第一基座50，第一基座50与第二基座70浮动配合，挤压件10能够跟随第一基座50相对第二基座70移动。
在上述方案中，第一基座50实现对挤压件10的安装定位，第一基座50与第二基座70浮动配合，第二基座70实现对第一基座50的支撑定位，以便于挤压件10与物料配合。
根据本申请的一些实施例，如图17和图20所示，第二基座70上设置有第二导轨71，第二导轨71沿第一方向X延伸，第一基座50可滑动地设置于第二导轨71。
第二导轨71为设置于第二基座70的导轨，第二导轨71约束第一基座50相对于第二基座70的移动轨迹。
在上述方案中，第一基座50与第二基座70通过第二导轨71滑动配合，以便于第一基座50相对于第二基座70移动稳定。
在一些实施例中，限位件43与第二导轨71滑动配合，以使得转轴30和多个压辊10b能够相对于第二基座70移动。
根据本申请的一些实施例，如图17和图20所示，挤压单元100还包括限位块81、导向杆82和弹性件83，限位块81设置于第二基座70，限位块81开设有通孔811，导向杆82沿第一方向X延伸，导向杆82可滑动地穿设于通孔811，导向杆82的一端与第一基座50连接，弹性件83套设于导向杆82且弹性支撑于限位块81与第一基座50之间。
限位块81可以与第二基座70可拆卸地连接，例如，限位块81可以与第二基座70通过锁紧件(如螺栓)连接，限位块81也可以与第二基座70卡接；或者，限位块81可以与第二基座70焊接。
沿第一方向X，限位块81可以位于第一基座50的远离挤压件10的一侧。
通孔811为限位块81上开设的孔，通孔811沿第一方向X贯穿限位块81，以便于与导向杆82配合。
导向杆82沿第一方向X延伸，即导向杆82的中心轴线的延伸方向与第一方向X平行。导向杆82的一端可以设置有螺纹，导向杆82可以与第一基座50螺纹连接。
导向杆82与通孔811配合，以便于第一基座50相对于第二基座70沿第一方向X移动。导向杆82的横截面可以为任意形状，例如，圆形、多边形等，可选地，导向杆82的横截面可以为圆形，对应地，通孔811可以为圆孔。导向杆82的横截面是指导向杆82的由垂直于导向杆82的中心轴线截得的截面。
弹性件83为能够弹性变形的部件，弹性件83可以为弹簧、橡胶等。
限位块81设置有两个，导向杆82设置有两个，两个导向杆82与两个限位块81一一对应，沿转轴30的延伸方向(也即第一轴线P的延伸方向Y)，两个限位块81间隔设置。
在上述方案中，弹性件83弹性支撑于限位块81与第一基座50之间，导向杆82对弹性件83进行导向，以便于挤压件10与物料配合；当挤压件10受到的沿第一方向X的作用力大于弹性件83施加于挤压件10的作用力时，挤压件10朝背离物料的方向移动并挤压弹性件83，使得第一基座50能够沿第一方向X浮动，降低挤压件10受力过大而损坏的风险。
根据本申请的一些实施例，如图19所示，送料装置1000还包括检测单元90，检测单元90设置于第一基座50与第二基座70之间，检测单元90用于检测挤压件10受到的沿第一方向X的作用力。
检测单元90可以为压力传感器。挤压件10设置于第一基座50，在挤压件10受到沿第一方向X的作用力时，作用力传递至第一基座50，检测单元90可以设置于第一基座50，以便于检测挤压件10受到的沿第一方向X的作用力。
弹性件83弹性支撑于第一基座50，弹性件83对第一基座50施加沿第一方向X的弹性力。可选地，弹性件83可以弹性支撑于检测单元90。
当挤压件10接触物料后，在第一基座50相对于第二基座70移动前，弹性件83施加于第一基座50的作用力恒定，检测单元90能够检测挤压件10初始作用于物料时，物料施加于挤压件10的反作用力，以便于掌握挤压件10施加于物料的作用力。
根据本申请的一些实施例，驱动件20设置于第二基座70。
在上述方案中，第二基座70能够对驱动件20进行定位支撑，同时，还能 够降低驱动件20与其他部件之间的干涉。
需要指出的是，在挤压单元100还包括第一带轮61、第二带轮62和传动带63的实施例中，虽然第一基座50能够相对于第二基座70沿第一方向X移动，但是第一基座50相对于第二基座70移动的距离较小(如小于2mm)，对于传动带63与第一带轮61和第二带轮62的配合的影响较小。
请参照图19，根据本申请的一些实施例，挤压单元100设置有两个，两个挤压单元100沿第一方向X相对设置，第一方向X与挤压平面101垂直，两个挤压单元100之间形成用于夹持物料的夹持空间。
两个挤压单元100的结构相同，两个挤压单元100沿第一方向X相对设置以形成夹持空间，两个挤压单元100在物料的沿第一方向X的两侧作用于物料，以从第一方向X对物料进行挤压，减小物料在第一方向X上的尺寸，便于物料装入容器内。
在上述方案中，两个挤压单元100沿第一方向X相对设置，共同夹持物料，进一步降低物料被夹持损伤的风险。
请参照图21，图21为本申请另一些实施例提供的送料装置的结构示意图。根据本申请的一些实施例，送料装置1000还包括驱动机构200，驱动机构200用于驱动挤压单元100沿与入料方向Z相反的方向移动。
可选地，驱动机构200可以包括驱动电机和传动组件，传动组件可以为丝杠和螺母配合的方式，驱动电机与丝杠的一端连接，螺母套设于丝杠且与丝杠螺纹配合，挤压单元100连接于螺母，驱动电机带动丝杠旋转，以使螺母带动挤压单元100沿与入料方向Z相反的方向移动。在一些实施例中，传动组件还可以为带传动组件。
在上述方案中，通过驱动机构200驱动挤压单元100沿入料方向Z相反的方向移动，配合挤压件10沿第一平面轨迹段G1沿入料方向Z运动，能够实现物料自动装入容器。
根据本申请的一些实施例，送料装置1000还包括机架300，挤压单元100安装于机架300，驱动机构200用于驱动机架300沿与入料方向Z相反的方向移动。
在上述方案中，机架300实现对挤压单元100的安装定位，驱动机构200能够驱动机架300沿与入料方向Z相反的方向移动，以便于物料装入容器。
根据本申请的一些实施例，物料为电极组件400，容器为壳体500。
以物料为电极组件400、容器为壳体500为例，在电池的制造过程中，通常，电极组件400的宽度小于壳体500的内部空间的宽度，以便于电极组件400进入壳体500内。电极组件400可以具有较高的群裕度，并且电极组件400较为蓬松，在装入壳体500前，电极组件400的截面积大于壳体500的截面积，也即，沿垂直于挤压平面101的方向，电极组件400的尺寸大于壳体500的内部空间的尺寸。当挤压平面101作用于电极组件400后，挤压件10挤压电极组件400，以减小电极组件400沿垂直于挤压平面101的方向上的尺寸，便于电极组件400进入壳体500内。
在上述方案中，物料为电极组件400，容器为壳体500，实现电极组件400的入壳作业，提高电池单体的良品率，提高制造效率。
根据本申请的一些实施例，参见图1至图21，本申请提供了一种送料装置1000，用于将电极组件400装入具有开口的壳体500内。该送料装置1000包括两个挤压单元100、驱动机构200及机架300，两个挤压单元100沿第一方向X相对设置，两个挤压单元100之间形成用于夹持电极组件400的夹持空间。每个挤压单元100包括多个挤压件10、驱动件20、转轴30、转换机构40、第一带轮61、第二带轮62、传动带63、第一基座50及第二基座70。
挤压件10具有用于与物料形成面接触的挤压平面101。挤压件10为压辊10b，压辊10b的延伸方向平行于转轴30的延伸方向，挤压平面101为压辊10b的外周面的一部分，压辊10b的横截面呈矩形。
转换机构40包括一对支架42以及两个限位件43，一对支架42沿转轴30的轴向间隔设置于转轴30，支架42呈圆盘状，支架42具有供转轴30穿过的第一安装孔421和供压辊10b穿过的多个第二安装孔422，多个第二安装孔422与多个压辊10b 一一对应设置，多个第二安装孔422围绕第一安装孔421的周向间隔分布，以使多个压辊10b绕转轴30间隔设置。压辊10b具有颈部13，沿压辊10b的轴向，颈部13位于压辊10b的端部和挤压平面101之间，颈部13的横截面积小于压辊10b的与颈部13相邻的部分的横截面积，颈部13设置在第二安装孔422内，颈部13与第二安装孔422间隙配合，颈部13的横截面积呈圆形。转轴30的两端分别可转动地安装于两个限位件43，每个限位件43具有面向另一限位件43的第一表面431，第一表面431上设置有限位槽4311，压辊10b的端部被配置为沿限位槽4311的槽侧面移动，以形成闭合轨迹G。
限位槽4311的外轮廓呈矩形，压辊10b的端部的横截面呈矩形；闭合轨迹G为矩形轨迹，如图1所示，闭合轨迹G包括依次连接的第一平面轨迹段G1、第二平面轨迹段G2、第三平面轨迹段G3及第四平面轨迹段G4，第一平面轨迹段G1与第三平面轨迹段G3平行设置，第二平面轨迹段G2与第四平面轨迹段G4平行设置，压辊10b沿第一平面轨迹段G1的运动方向与入料方向Z相同，压辊10b沿第二平面轨迹段G2朝背离电极组件400的方向运动，压辊10b沿第三平面轨迹段G3的运动方向与入料方向Z相反，压辊10b沿第四平面轨迹段G4朝向电极组件400运动。
第一表面431上还设置有避让槽4312，避让槽4312设置于限位槽4311的拐角处且与限位槽4311连通，避让槽4312用于避让压辊10b。压辊10b的端面上安装有滚轮14，限位槽4311的槽底面上设置有导向槽4313，滚轮14与导向槽4313的槽侧面滚动配合。转轴30的中心轴线为第一轴线P，沿第一轴线P的延伸方向Y，导向槽4313的投影位于限位槽4311内，沿转轴30的径向，导向槽4313的槽侧面相比限位槽4311的槽侧面更靠近第一轴线P。导向槽4313的外轮廓呈矩形，导向槽4313的相邻两个槽侧面之间圆弧过渡。
驱动件20为伺服电机，第一带轮61连接于驱动件20的输出端，第二带轮62连接于转轴30，传动带63套设于第一带轮61和第二带轮62。驱动件20用于驱动转轴30旋转，限位件43用于引导压辊10b绕第一轴线P沿闭合轨迹G公转并限制压辊10b自转。
第一基座50包括两个限位件43、基座本体51和防护罩52，基座本体51连接两个限位件43，防护罩52固定于基座本体51，防护罩52用于罩设于转轴30和多个压辊10b的外侧，防护罩52设置有供压辊10b露出以挤压物料的开口520，开口520的边缘设置有台阶面523，台阶面523用于抵接壳体500的开口端。
第二基座70上设置有第二导轨71，第二导轨71沿第一方向X延伸，第一基座50可滑动地设置于第二导轨71。
第二基座70设置于机架300，驱动机构200用于驱动机架300沿与入料方向Z相反的方向移动。当驱动机构200驱动机架300沿入料方向Z相反的方向移动时，壳体500跟随第一基座50沿入料方向Z相反的方向移动，驱动件20驱动转轴30旋转，压辊10b运动至与电极组件400接触后，压辊10b沿第一平面轨迹段G1运动，两个挤压单元100的压辊10b夹持电极组件400并带动电极组件400进入壳体500。
根据本申请实施例的送料装置1000，压辊10b与电极组件400形成面接触，使得压辊10b与电极组件400之间具有较大的接触面积，压辊10b施加于物料的作用力分散，能够降低电极组件400损坏的风险，从而提高电池单体的良品率和生产效率。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (39)

  1. 一种送料装置，用于将物料装入具有开口的容器内，所述送料装置包括挤压单元，所述挤压单元包括：
    挤压件，具有挤压平面；以及
    驱动件，用于驱动所述挤压件沿闭合轨迹循环运动，所述闭合轨迹包括第一平面轨迹段，当所述挤压件沿所述第一平面轨迹段运动时，所述挤压平面与所述物料形成面接触并保持沿入料方向延伸，所述入料方向为所述物料相对于所述容器的运动方向。
  2. 根据权利要求1所述的送料装置，其中，所述挤压件包括挤压件本体和缓冲层，所述缓冲层至少覆盖所述挤压件本体的部分表面，所述挤压平面设置于所述缓冲层上。
  3. 根据权利要求1或2所述的送料装置，其中，所述挤压件沿所述第一平面轨迹段的运动方向与所述入料方向相同。
  4. 根据权利要求1-3中任一项所述的送料装置，其中，所述驱动件用于驱动所述挤压件绕第一轴线转动以使所述挤压平面靠近或远离所述物料，所述第一轴线的延伸方向垂直于所述入料方向。
  5. 根据权利要求4所述的送料装置，其中，所述挤压单元还包括转轴和转换机构，所述驱动件用于驱动所述转轴旋转，所述第一轴线为所述转轴的中心轴线，所述转换机构被配置为将所述转轴的旋转运动转换为所述挤压件的沿所述闭合轨迹的循环运动。
  6. 根据权利要求5所述的送料装置，其中，所述转换机构包括凸轮，所述凸轮安装于所述转轴，所述凸轮在垂直于所述转轴的平面上的投影为勒洛三角形，所述挤压件为矩形框，所述矩形框套设于所述凸轮的外部，所述挤压平面设置于所述矩形框的面向所述物料的一侧。
  7. 根据权利要求6所述的送料装置，其中，所述转换机构还包括第一导轨，所述第一导轨用于引导所述矩形框沿所述闭合轨迹运动。
  8. 根据权利要求5所述的送料装置，其中，所述挤压件为压辊，所述压辊的延伸方向平行于所述第一轴线的延伸方向，所述挤压平面为所述压辊的外周面的一部分。
  9. 根据权利要求8所述的送料装置，其中，所述压辊的横截面呈多边形。
  10. 根据权利要求9所述的送料装置，其中，所述压辊的横截面呈矩形。
  11. 根据权利要求8-10中任一项所述的送料装置，其中，所述挤压单元包括多个所述压辊，多个所述压辊绕所述转轴间隔设置，多个所述压辊被配置为绕所述第一轴线公转。
  12. 根据权利要求11所述的送料装置，其中，所述转换机构包括：
    一对支架，所述一对支架沿所述转轴的轴向间隔设置于所述转轴，多个所述压辊可活动地安装于所述一对支架；
    限位件，所述限位件与所述压辊配合，所述限位件用于引导所述压辊绕所述第一轴线沿所述闭合轨迹公转并限制所述压辊自转。
  13. 根据权利要求12所述的送料装置，其中，所述支架具有供所述转轴穿过的第一安装孔和供所述压辊穿过的多个第二安装孔，所述多个第二安装孔与多个所述压辊对应设置，所述多个第二安装孔围绕所述第一安装孔的周向间隔分布。
  14. 根据权利要求13所述的送料装置，其中，所述压辊具有配合部，所述配合部设置于所述第二安装孔内，所述第二安装孔沿所述转轴的径向的尺寸大于所述配合部沿所述转轴的径向的尺寸。
  15. 根据权利要求14所述的送料装置，其中，沿所述压辊的轴向，所述配合部位于所述压辊的端部和所述挤压平面之间，所述配合部的横截面积小于所述压辊的与所述配合部相邻的部分的横截面积。
  16. 根据权利要求15所述的送料装置，其中，所述配合部的横截面呈圆形。
  17. 根据权利要求14-16中任一项所述的送料装置，其中，所述支架呈圆盘状，每个所述第二安装孔沿所述支架的径向延伸至所述支架的边缘。
  18. 根据权利要求12-17任一项中所述的送料装置，其中，所述限位件设置有两个，所述转轴的两端分别可转动地安装于两个所述限位件，每个所述限位件具有面向另一所述限位件的第一表面，所述第一表面上设置有限位槽，所述压辊的端部被配置为沿所述限位槽的槽侧面移动，以形成所述闭合轨迹。
  19. 根据权利要求18所述的送料装置，其中，所述限位槽的外轮廓呈矩形，所述闭合轨迹为矩形轨迹。
  20. 根据权利要求19所述的送料装置，其中，所述压辊的端部的横截面呈矩形。
  21. 根据权利要求18-20中任一项所述的送料装置，其中，所述第一表面上还设置有避让槽，所述避让槽设置于所述限位槽的拐角处且与所述限位槽连通，所述避让槽用于避让所述压辊。
  22. 根据权利要求18-21中任一项所述的送料装置，其中，所述压辊的端面上安装有滚轮，所述限位槽的槽底面上设置有导向槽，所述滚轮与所述导向槽的槽侧面滚动配合。
  23. 根据权利要求22所述的送料装置，其中，沿所述第一轴线的延伸方向，所述导向槽的投影位于所述限位槽内。
  24. 根据权利要求22所述的送料装置，其中，沿所述转轴的径向，所述导向槽的槽侧面相比所述限位槽的槽侧面更靠近所述第一轴线。
  25. 根据权利要求22-24中任一项所述的送料装置，其中，所述导向槽的外轮廓呈矩形。
  26. 根据权利要求25所述的送料装置，其中，所述导向槽的相邻两个槽侧面之间圆弧过渡。
  27. 根据权利要求18-26中任一项所述的送料装置，其中，所述挤压单元还包括第一基座，所述第一基座包括两个所述限位件，所述第一基座设置有用于抵接所述容器的开口端的台阶面。
  28. 根据权利要求27所述的送料装置，其中，所述第一基座还包括基座本体和防护罩，所述基座本体连接两个所述限位件，所述防护罩固定于所述基座本体，所述防护罩用于罩设在所述转轴和多个所述压辊的外侧，所述防护罩设置有供所述压辊露出以挤压所述物料的开口，所述台阶面沿所述开口的边缘设置。
  29. 根据权利要求28所述的送料装置，其中，所述防护罩包括沿所述入料方向相对设置的第一罩体和第二罩体，所述第一罩体和所述第二罩体相互扣合，所述台阶面设置于所述第一罩体。
  30. 根据权利要求5-29中任一项所述的送料装置，其中，所述挤压单元还包括第一带轮、第二带轮和传动带，所述第一带轮连接于所述驱动件的输出端，所述第二带轮连接于所述转轴，所述传动带套设于所述第一带轮和所述第二带轮。
  31. 根据权利要求1-30中任一项所述的送料装置，其中，所述挤压单元还包括第一基座和第二基座，所述挤压件设置于所述第一基座，所述第一基座沿第一方向可浮动地设置于所述第二基座，所述第一方向垂直于所述挤压平面。
  32. 根据权利要求31所述的送料装置，其中，所述第二基座上设置有第二导轨，所述第二导轨沿所述第一方向延伸，所述第一基座可滑动地设置于所述第二导轨。
  33. 根据权利要求32所述的送料装置，其中，所述挤压单元还包括限位块、导向杆和弹性件，所述限位块设置于所述第二基座，所述限位块开设有通孔，所述导向杆沿所述第一方向延伸，所述导向杆可滑动地穿设于所述通孔，所述导向杆的一端与所述第一基座连接，所述弹性件套设于所述导向杆且弹性支撑于所述限位块与所述第一基座之间。
  34. 根据权利要求31-33中任一项所述的送料装置，其中，所述送料装置还包括检测单元，所述检测单元设置于所述第一基座与所述第二基座之间，所述检测单元用于检测所述挤压件受到的沿所述第一方向的作用力。
  35. 根据权利要求31-34中任一项所述的送料装置，其中，所述驱动件设置于所述第二基座。
  36. 根据权利要求1-35中任一项所述的送料装置，其中，所述挤压单元设置有两个，两个所述挤压单元沿第一方向相对设置，所述第一方向与所述挤压平面垂直，两个所述挤压单元之间形成用于夹持所述物料的夹持空间。
  37. 根据权利要求1-36中任一项所述的送料装置，其中，所述送料装置还包括驱动机构，所述驱动机构用于驱动所述挤压单元沿与所述入料方向相反的方向移动。
  38. 根据权利要求37所述的送料装置，其中，所述送料装置还包括机架，所述挤压单元安装于所述机架，所述驱动机构用于驱动所述机架沿与所述入料方向相反的方向移动。
  39. 根据权利要求1-38中任一项所述的送料装置，其中，所述物料为电极组件，所述容器为壳体。
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