Object loading equipment
The linear motor system-based object loading system addresses the complexity of conventional equipment by stabilizing object positioning and transport in secondary battery manufacturing, enhancing adhesion and preventing accidental drops.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- LG ENERGY SOLUTION LTD
- Filing Date
- 2024-04-23
- Publication Date
- 2026-04-22
AI Technical Summary
Conventional methods for manufacturing secondary batteries require complex equipment configurations due to the use of conveyors, making it difficult to control the individual position and speed of objects, leading to instability during transport.
An object loading system utilizing a linear motor system (LMS) with a stator, movable element, and pressurizing unit to stabilize the adsorption and transport of objects, including a stator with an electromagnet, movable element, and pressurizing unit to ensure precise positioning and adhesion.
The system simplifies equipment configuration, controls object position and speed, and ensures stable adsorption and transport, preventing accidental drops during handling.
Smart Images

Figure 2026513029000001_ABST
Abstract
Description
Technical Field
[0001] [Cross - reference to Related Applications]
[0002] This application claims the benefit of priority based on Korean Patent Application No. 10 - 2023 - 0078331 filed on June 19, 2023, and all the contents disclosed in the literature of the Korean patent application are included as part of this specification.
[0003] The present invention relates to an object loading facility that adsorbs an object (or a loaded item) using a linear motor system (LMS) and then loads it in a loading section. In particular, it relates to an object loading facility that can adsorb an object more stably.
Background Art
[0004] Generally, a secondary battery, unlike a primary battery that cannot be charged, refers to a battery that can be charged and discharged. Such secondary batteries are widely used in the field of advanced electronic devices such as mobile phones, notebook computers, and camcorders.
[0005] And the secondary battery can be classified in various ways according to the structure of the electrode assembly. As an example, the secondary battery can be classified into a stack type structure, a winding type (jelly - roll type) structure, and a stack / folding type structure.
[0006] ' The secondary battery includes an electrode assembly, an electrolyte, and a case that houses the electrode assembly and the electrolyte. And the electrode assembly includes one or more basic unit bodies, and the basic unit body has a structure in which a positive electrode and a negative electrode are alternately arranged with a separator interposed therebetween.
[0007] The manufacturing method of a secondary battery having such a structure includes a process of manufacturing a basic unit body, a process of transferring and loading the basic unit body, a process of manufacturing an electrode assembly by alternately arranging the basic unit body and a separator, and a process of manufacturing a secondary battery by housing the electrode assembly in a case.
[0008] Here, the loading process for the basic units includes a conveyor for transporting the basic units and a loading box into which the basic units falling from the conveyor are loaded.
[0009] However, conventional methods for manufacturing secondary batteries have the problem of requiring a complex equipment configuration due to the use of conveyors, which makes it impossible to control the individual position and speed of the objects. [Overview of the project] [Problems that the invention aims to solve]
[0010] The present invention aims to provide an object loading system that simplifies the configuration of the equipment using a linear motor system (LMS), controls the individual position and speed of objects, and in particular can stably attract and transport objects. [Means for solving the problem]
[0011] The object loading equipment of the present invention includes a loading device that attracts objects located in a supply section and then loads them into a loading section, the loading device comprising: a stator provided by an electromagnet and having a circulating path that sequentially passes through the supply section and the loading section; a movable element that repeatedly circulates between the supply section and the loading section through interaction with the magnetic field generated by the stator; a loading section equipped with an adsorption plate that passes continuously through the supply section and the loading section together with the movable element, attracts objects in the supply section, and then loads them into the loading section; and a pressurizing unit that moves the loading section, as it passes through the supply section, toward the object so that the adsorption plate of the loading section is in close contact with the object.
[0012] The pressurizing section may include a stopper provided on the movable element so as to be movable toward the object, to which the loading section is coupled; and a pressurizing member provided on the stator located in the supply section, which pushes the stopper as it passes through the supply section to move the loading section toward the object. This allows the loading section to move toward the object while effectively adhering to it, and to attract the object.
[0013] The movable element may include a magnetic section installed on the stator and which repeatedly circulates between the supply section and the loading section through interaction with the magnetic field generated by the stator; and a coupling section having a coupling groove formed therein, to which the stopper is coupled so as to be movable toward the object.
[0014] The stopper may include a support portion that is pushed toward the object by the pressurizing member when passing through the supply section, and a movable portion that is movably coupled to the coupling groove toward the object and toward the loading portion.
[0015] The pressurizing section may further include an elastic member provided between the movable element and the stopper, which returns the stopper, after passing through the supply section, to its original position via elastic force. This allows the loading section, after passing through the supply section, to be moved while remaining stably in its original position.
[0016] The pressurizing member may be provided as a pressurizing roller. This allows the pressurizing member to roll against the stopper and press the stopper without generating noise.
[0017] Multiple pressure rollers may be provided within the supply section in a direction that allows the movable element to circulate. This allows the loading section to be maintained in a compressed state while passing through the supply section.
[0018] The corner of the stopper facing the pressing roller may be formed as an inclined surface. This can minimize the frictional force between the pressing roller and the stopper to prevent noise generation, and can gradually lower or raise the stopper to increase the adsorption force of the object and prevent the adsorbed object from being removed.
[0019] The pressing member may be coupled to the stator so as to be position - adjustable in the direction toward the object. Thereby, the distance between the stopper and the pressing member can be adjusted, and as a result, the stopper can be adjusted to be pushed more stably.
[0020] [[ID=⑧]]It may further include a transfer device for supplying an object to the supply section.
Advantages of the Invention
[0021] The object loading equipment of the present invention can simplify the equipment configuration, can control the individual position and speed of the object, and in particular, can stably adsorb and transfer the object.
Brief Description of the Drawings
[0022] [Figure 1] It is a process diagram schematically showing the object loading equipment of the present invention. [Figure 2] It is a design drawing showing the object loading equipment of the present invention. [Figure 3] It is a design drawing showing the loading device included in the object loading equipment of the present invention. [Figure 4] It is a design drawing showing the transfer device included in the object loading equipment of the present invention. [Figure 5] It is a diagram showing the stator and the rotor in the loading device of the object loading equipment of the present invention. [Figure 6] It is a diagram schematically showing the interaction between the stator and the rotor of the object loading equipment of the present invention. [Figure 7] It is a front view showing the pressing part of the object loading equipment of the present invention. [Figure 8]It is a plan view showing the pressurizing part of the object loading equipment of the present invention. [Figure 9] It is a cross-sectional view showing the loading part of the object loading equipment of the present invention. [Figure 10] It is a perspective view showing the coupled state of the mover and the stopper of the object loading equipment of the present invention. [Figure 11] It is a front view showing a state in which the stopper is not pushed by the pressurizing member in the object loading equipment of the present invention. [Figure 12] It is a front view showing a state in which the stopper is pushed by the pressurizing member in the object loading equipment of the present invention. [Figure 13] It is a front view showing another embodiment of the object loading equipment of the present invention.
Embodiments for Carrying Out the Invention
[0023] Hereinafter, embodiments of the present invention will be described in detail so that a person having ordinary knowledge in the technical field to which the present invention pertains can easily implement it while referring to the attached drawings. However, the present invention may be embodied in various different forms and is not limited to the embodiments described here. And in the drawings, parts not related to the description are omitted in order to clearly explain the present invention, and similar reference numerals are given to similar parts throughout the specification.
[0024] [Object Loading Equipment of the Present Invention]
[0025] The object loading equipment of the present invention has a structure to which a linear motor system (LMS) is applied. As a result, objects can be adsorbed respectively to minimize vacuum loss, objects can be transferred respectively to control the speed, and as a result, the supply speed of the objects can be improved.
[0026] In particular, the object loading equipment of the present invention has a structure that stably attracts objects located in the supply section, thereby increasing the attraction force of the objects, and as a result, it is possible to prevent accidents in which objects fall unintentionally during transport.
[0027] The object loading equipment of the present invention will be described in detail below with reference to the figures.
[0028] Figure 1 is a schematic process diagram showing the object loading equipment of the present invention, Figure 2 is a design drawing showing the object loading equipment of the present invention, Figure 3 is a design drawing showing the loading device included in the object loading equipment of the present invention, and Figure 4 is a design drawing showing the transfer device included in the object loading equipment of the present invention.
[0029] As shown in Figures 1 to 4, the object loading equipment of the present invention includes a transfer device 10 for supplying object 1 to supply section A, and a loading device 20 for loading object 1 supplied to supply section A by the transfer device into loading section B.
[0030] Transfer device
[0031] As shown in Figures 1 and 3, the transfer device 10 is for transferring the object 1 located in the set section C to the supply section A.
[0032] On the other hand, the transfer device 10 will be explained in detail below, so a detailed explanation will be omitted here.
[0033] Loading device
[0034] The loading device 20 has a structure that, after attracting an object located in the supply section, loads it into the loading section B. That is, the loading device 20 includes a stator 21, a movable element 22, a loading section 23, and a pressurizing section 24.
[0035] The stator 21 has a structure in which multiple rails are connected to form a circular track that passes through supply section A and loading section B. In other words, the multiple rails are connected in the form of a circular track, similar to the track of an athletics stadium.
[0036] Figure 5 shows the stator and movable element in the loading device of the object loading equipment of the present invention, and Figure 6 is a schematic diagram showing the interaction between the stator and movable element of the object loading equipment of the present invention.
[0037] On the other hand, as shown in Figures 5 and 6, multiple rails are provided in the direction of the circulating track and include an electromagnet, which is an electronic coil 211. The movable element 22 corresponding to the rails includes a magnetic section 221 with a north pole and a south pole. In other words, the propulsion force generated by the interaction between the electronic coil 211 of the rails and the magnetic section 221 of the movable element 22 causes the movable element 22 to circulate along the rails. This utilizes the principle of a linear motor system.
[0038] Such a stator 21 includes a first linear guide through which rails are connected in a straight line from the supply section A to the loading section B, a second linear guide through which rails are connected in a curve from the loading section B to a first point, a third linear guide through which rails are connected in a straight line from the first point to a second point, and a fourth linear guide through which rails are connected in a curve from the second point to the supply section A. As a result, the movable part 22 circulates by sequentially passing through the first to fourth linear guides of the stator 21. When passing through the first linear guide, it passes at a first speed, and when passing through the second to fourth linear guides, it passes at a second speed which is faster than the first speed, thereby increasing the process speed.
[0039] On the other hand, the stator 21 further includes a base portion 213 that supports multiple rails so that they have a circular track. That is, the base portion 213 has a shape similar to a track in an athletics stadium, and multiple rails are supported on its outer surface to form a circular track.
[0040] The movable element 22 is movably mounted on the stator 21 and has a structure that repeatedly circulates between the supply section A and the loading section B through interaction with the magnetic field generated by the stator 21. Here, the movable element 22 includes a magnetic section 221 provided with a north pole and a south pole.
[0041] Figure 7 is a front view showing the pressurizing section of the object loading equipment of the present invention.
[0042] In other words, as shown in Figure 7, when current is applied to the electron coil 211 of the stator 21, an electromagnetic force acts on the electron coil due to its interaction with the magnetic field generated by the electron coil of the stator 21. This electromagnetic force provides a propulsive force to the movable element 22, causing it to move along the stator 21. At this time, if the current applied to the electron coil 211 is large, the speed of movement of the movable element 22 increases, and if the current is small, the speed of movement of the movable element 22 decreases. The speed of movement of the movable element 22 can be adjusted in this way.
[0043] As an example, the movable element 22 includes a magnetic section 221 installed on the stator 21 that repeatedly circulates between the supply section A and the loading section B through interaction with the magnetic field generated by the stator 21, and a coupling section 222 provided at the tip of the magnetic section 221, which has a coupling groove 2221 formed therein that allows the stopper 241 to move toward the object 1 (downward in Figure 7).
[0044] Figure 8 is a plan view showing the pressurizing section of the object loading equipment of the present invention, Figure 9 is a cross-sectional view showing the loading section of the object loading equipment of the present invention, and Figure 10 is a perspective view showing the coupled state of the movable element 22 and stopper 241 of the object loading equipment of the present invention.
[0045] Here, referring to Figure 10, the coupling grooves 2221 are provided on both corresponding sides of the coupling.
[0046] The loading section 23 has a structure that, after adsorbing the object 1 in the supply section A, drops the object 1 into the loading section B.
[0047] In other words, as shown in Figure 9, the loading section 23 includes a suction plate 231 that attracts the object 1 in the supply section A with suction force, a suction device 232 that draws air from the suction plate 231 to generate suction force, and a fixing member 233 that fixes the suction plate 231 to the movable element 22.
[0048] On the other hand, the loading section 23 may be detachably connected to the movable element 22. For example, the loading section 23 and the movable element 22 may be detachably connected via a groove-and-projection coupling structure. This allows for increased interchangeability by replacing the loading section 23 connected to the movable element depending on the object 1.
[0049] On the other hand, conventionally, the suction plate of the loading section 23 was unable to stably adhere to the object, resulting in the inability to suction the object, or the object was only weakly suctioned, causing accidents where the object fell during transport.
[0050] In particular, Object 1 of the present invention describes a secondary battery in which an electrode assembly and an electrolyte are housed in a pouch as one embodiment. In order to house the electrolyte, the adsorption plate 231 must be in close contact with the surface of the pouch in order for the secondary battery to be stably adsorbed.
[0051] To solve these problems, the object loading equipment of the present invention includes a structure that moves the loading section 23 toward the object 1, thereby increasing the adhesion force between the loading section 23 and the object 1, and thereby enabling stable adsorption of the object 1.
[0052] In other words, the object loading equipment of the present invention includes a pressurizing section 24, which allows the suction plate 231 to be pressed tightly against the surface of the pouch. This enables the suction plate 231 to stably hold the pouch, and as a result, it is possible to prevent accidents in which secondary batteries fall during transport.
[0053] For example, the pressurizing unit 24 moves the loading unit 23 passing through the supply section A toward the object 1 so that the suction plate 231 of the loading unit 23 is in close contact with the object 1, preferably so that the suction plate 231 is in close contact with the object 1 while being pressed against it.
[0054] In other words, the pressurizing unit 24 pushes the loading unit 23 as it passes through the supply section A, moving it toward the object 1 located in the supply section A. This increases the adhesion force as the suction plate 231 of the loading unit 23 is pressed tightly against the surface of the object 1 located in the supply section A.
[0055] Figure 11 is a front view of the object loading equipment of the present invention showing the state in which the stopper is not pressed by the pressurizing member, and Figure 12 is a front view of the object loading equipment of the present invention showing the state in which the stopper is pressed by the pressurizing member.
[0056] Such a pressurizing section 24 includes a stopper 241 that is connected to the movable element 22 so as to be movable toward the object, with a loading section 23 connected to its lower end, and a pressurizing member 242 provided on the stator 21 located in the supply section A, which pushes the stopper 241 as it passes through the supply section A to move the loading section 23 toward the object 1.
[0057] The stopper 241 includes a support portion 2411 which is pushed toward the object 1 by the pressurizing member 242 when passing through the supply section A, and a movable portion 2412 which is coupled to the coupling groove 2221 so as to be movable toward the object 1, and to which the loading portion 23 is coupled at its lower end.
[0058] In this way, the pressurizing unit pushes the loading unit 23 toward the object 1, causing the suction plate 231 of the loading unit 23 to be pressed tightly against the surface of the object 1 in the supply section A. This increases the adhesion force between the suction plate 231 and the object 1, and as a result, the loading unit 23 can stably adsorb the object 1.
[0059] On the other hand, the pressurizing member 242 is provided by a pressurizing roller, and multiple pressurizing rollers may be provided within the supply section A at intervals set in the direction in which the movable element 22 circulates. Therefore, the stopper 241 passing through the supply section A can be continuously pressed.
[0060] On the other hand, the corner of the stopper 241 facing the pressure roller (the corner of the upper surface of the stopper 241 in Figure 11) may be formed on an inclined surface 24111. This allows the pressure roller to be guided along the inclined surface 24111 of the stopper while minimizing the frictional force between the pressure roller and the stopper 241, thereby inducing rolling contact and preventing the generation of noise, and inducing the gradual descent and rise of the stopper 241 and preventing the generation of vibration.
[0061] On the other hand, the pressurizing section 24 may further include an elastic member 243 for returning the stopper 241, which has passed through the supply section A, to its original position.
[0062] The elastic member 243 is provided between the movable element 22 and the stopper 241, and stores elastic force while being compressed by the stopper 241 in the supply section A. When the stopper 241 passes through the supply section A, the stored elastic force allows the stopper 241 to be restored to its original position. On the other hand, the elastic member 243 may be a coil spring.
[0063] Therefore, the object loading equipment of the present invention, by including the pressurizing section 24, can stably adsorb the object 1, and can prevent accidents in which the object 1 falls unintentionally during transport.
[0064] On the other hand, the transfer device 10, like the loading device 20, can have a structure to which a linear motor system (LMS) is applied. That is, the transfer device 10 has a structure that can pick up the object 1 located in the set section C and then supply it to the supply section A.
[0065] As an example, the transfer device 10 includes a second stator 11, a second movable element 12, and a second loading section 13, as shown in Figures 1 and 4.
[0066] The second stator 11 has a rail structure in which multiple electronic coils are arranged at regular intervals to have a circulating path that sequentially passes through the set section C and the supply section A to which the object 1 is supplied. The second movable element 12 includes a magnetic element with a north pole and a south pole. That is, the second movable element 12 circulates along the stator in one direction (counterclockwise in Figure 1) by the thrust force generated by the interaction with the electronic coils of the second stator 11.
[0067] The second movable element 12 is movably mounted on the second stator 11 and has a structure that repeatedly cycles between the setting section C and the supply section A through interaction with the magnetic field generated from the second stator 11.
[0068] As shown in Figure 1, when an electric current is applied to the electron coil of the second stator 11, an electromagnetic force acts on the electron coil due to its interaction with the magnetic field generated from the second stator 11. This electromagnetic force causes the second movable element 12 to receive a thrust, and the second movable element 12 moves along the electron coil of the second stator 11. At this time, if the current applied to the electron coil is large, the speed of movement of the second movable element 12 increases, and if the current is small, the speed of movement of the second movable element 12 decreases.
[0069] The second loading section 13 is fixed to the second movable element 12 and has a structure that, after attracting the object 1 in the setting section C, places the object 1 in the supply section A.
[0070] On the other hand, the second loading section 13 has the same structure as the loading section described above, so a detailed explanation will be omitted.
[0071] Therefore, the object loading equipment of the present invention can stably adsorb objects located in supply section A, and as a result, can stably transport and load the objects to loading section B.
[0072] Figure 13 is a front view showing another embodiment of the object loading equipment of the present invention.
[0073] As shown in Figure 13, the object loading equipment of the present invention is configured such that the pressurizing member 242 of the loading device is coupled to the stator so as to be positionable in the direction toward the object 1.
[0074] In other words, the stator located in the supply section A has an elongated hole 212 formed in the direction toward the object 1, and the elongated hole 212 is formed to be long in the vertical direction in Figure 13, and the pressurizing member 242 is provided with a fastening piece 2422 through the elongated hole 212 to which a nut 2421 is fastened.
[0075] Therefore, the pressurizing member 242 can be lowered or raised in the direction toward the object 1 within the elongated hole 212 and fixed by tightening the nut 2421. In this manner, the position of the pressurizing member 242 provided on the stator can be adjusted. As a result, the position of the pressurizing member 242 can be adjusted with respect to the stopper 241, and the distance and adhesion force between the suction plate 231 and the object 1 can be adjusted.
[0076] The scope of the present invention is indicated by the claims described below rather than by the detailed description above, and a variety of embodiments are possible, derived from the meaning and scope of the claims and the concept of equivalents. [Explanation of Symbols]
[0077] 1: Object 10: Transfer device 11: Second stator 12: Second mover 13: Second Loading Section 20: Loading device 21: Stator 211: Electronic coil 212: Long hole 213: Base section 22: Mover 221: Magnet section 222: Joint 2221: Connection groove 23: Loading section 231: Adsorption plate 232: Inhaler 233: Fixing member 24: Pressurized section 241: Stopper 2411: Support part 24111: Slope 2412: Mobile Unit 242: Pressurizing member 2421: Nut 2422: Fastening piece 243: Elastic member
Claims
1. The system includes a loading device that, after adsorbing an object located in the supply section, loads it into the loading section. The aforementioned loading device is A stator provided by electromagnets, having a circulating path that sequentially passes through a supply section and a loading section; A movable element that repeatedly circulates between the supply section and the loading section through interaction with the magnetic field generated by the stator; A loading section equipped with a suction plate that passes through a supply section and a loading section in succession together with the movable element, and after adsorbing the object in the supply section, loads it into the loading section; and An object loading device, including a pressurizing unit that moves the loading unit, which passes through the supply section, toward the object so that the suction plate of the loading unit is in close contact with the object.
2. The pressurizing section is A stopper is provided on the movable element so as to be movable toward the object, and the loading section is connected to it; and The object loading equipment according to claim 1, further comprising a pressurizing member provided on the stator located in the supply section, which pushes the stopper passing through the supply section to move the loading section toward the object.
3. The aforementioned movable element is A magnet unit installed on the stator, which repeatedly circulates between the supply section and the loading section through interaction with the magnetic field generated by the stator; and The object loading equipment according to claim 2, comprising a coupling portion having a coupling groove formed therein, to which the stopper is movably coupled in the direction toward the object.
4. The stopper is, A support portion that is pushed by the pressurizing member in the direction toward the object when passing through the supply section; and The object loading equipment according to claim 3, further comprising a movable part that is movably coupled to the coupling groove in a direction toward the object, and to which the loading part is coupled.
5. The pressurizing section is The object loading equipment according to claim 2, further comprising an elastic member provided between the movable element and the stopper, which returns the stopper, which has passed through the supply section, to its original position via elastic force.
6. The object loading equipment according to claim 2, wherein the pressurizing member is provided by a pressure roller.
7. The aforementioned pressure roller is The object loading equipment according to claim 6, wherein a plurality of the movable elements are provided within the supply section in a direction in which they circulate.
8. The object loading equipment according to claim 6, wherein the corner of the stopper facing the pressure roller is formed by an inclined surface.
9. The object loading equipment according to claim 2, wherein the pressurizing member is coupled to the stator so as to be positionable in the direction toward the object.
10. The object loading equipment according to claim 1, further comprising a transfer device for supplying the object to the supply section.