Dual-mode iron core lamination device

Abstract

The utility model discloses a dual-mode iron core lamination device. The dual-mode iron core lamination device comprises a base station, a portal frame, an iron core gripper and a longitudinal movement driving device, a first lamination area and a second lamination area are symmetrically arranged on the base table in the width direction, and an iron core bearing plate and more than two iron core fixing plates are detachably arranged on the first lamination area and the second lamination area respectively; the portal frame stretches across the base table in the length direction and comprises a horizontally-arranged cross beam, and the iron core gripper is movably arranged on the cross beam. The longitudinal movement driving device comprises two telescopic driving parts, and the driving parts are connected with the bottoms of the supporting columns through transmission plates so as to drive the portal frame to move in the width direction, so that the iron core tongs move between the first lamination area and the second lamination area. According to the utility model, the iron core lamination efficiency and precision can be improved.

Description

Technical Field

[0001] This application relates to the field of iron core lamination technology, specifically to a dual-mode iron core lamination device. Background Technology

[0002] In the transformer manufacturing industry, core lamination efficiency is a key factor determining production effectiveness, directly impacting a company's market competitiveness and product delivery cycle. However, current core lamination devices suffer from significant technical bottlenecks. In existing devices, once the cores on the core support plate reach the pre-set lamination height, completing one lamination operation, the entire lamination device must be paused, and the support plate bearing the fully laden cores must be removed manually or with mechanical assistance.

[0003] Subsequently, additional operations such as installing and positioning the new iron core are required to proceed with the next round of lamination. This series of plate removal and replacement processes involves multiple steps, consuming significant manpower and resources. Each operation takes a considerable amount of time, and frequent downtime for replacements severely slows down the overall production pace, resulting in low iron core lamination efficiency and making it difficult to meet the demands of large-scale, continuous modern production. Therefore, developing an iron core lamination device that can shorten downtime for material replacement and improve lamination continuity has become an urgent problem for the industry. Utility Model Content

[0004] In view of the above problems, this application provides a dual-mode iron core lamination device to solve the technical problem of low iron core lamination efficiency.

[0005] To achieve the above objectives, this application provides a dual-mode core lamination device, which includes:

[0006] A base platform, on which a first stacked plate area and a second stacked plate area are symmetrically arranged along the width direction. A core support plate and two or more core fixing plates are detachably arranged on the first stacked plate area and the second stacked plate area, respectively. The core fixing plates are arranged on both sides of the core support plate along the length direction. Longitudinal tracks are arranged on both sides of the base platform along the length direction.

[0007] A gantry frame, spanning the length of the platform above the base, includes a horizontally arranged crossbeam and vertically arranged support columns at both ends of the crossbeam. The crossbeam is provided with a transverse track and two or more iron core grippers that slide along the transverse track. The iron core grippers are used to grab iron cores from the iron core fixing plate and stack them onto the iron core bearing plate. The bottom of the support column is provided with a first slider, which is slidably connected to the longitudinal track on the corresponding side.

[0008] The longitudinal movement drive device includes two telescopic drive components, which are disposed on both sides of the base along the length direction and parallel to the longitudinal movement track. The telescopic ends of the drive components are connected to the bottom of the support column through a transmission plate. The longitudinal movement drive device is used to drive the gantry frame to move along the width direction so that the iron core gripper switches between the first stacked plate area and the second stacked plate area.

[0009] Furthermore, two longitudinal tracks are arranged side by side on both sides of the base along its length.

[0010] The bottom end of the support column is provided with an inverted T-shaped connecting plate. The connecting plate is provided with two first sliders along the length direction and along the width direction. The two first sliders along the length direction are corresponding to the two longitudinal tracks arranged side by side.

[0011] Furthermore, the driving component and the transmission plate are disposed on the outside of the longitudinal track. The driving component is any one of a hydraulic cylinder, a pneumatic cylinder, or a linear motor. The transmission plate is fixedly connected to the bottom of the connecting plate.

[0012] Furthermore, the transverse track is slidably equipped with two iron core grippers, and transverse servo motors are respectively provided at both ends of the crossbeam. The transverse servo motors are connected to the corresponding iron core grippers through lead screw assemblies to drive the iron core grippers to move laterally; and each iron core gripper includes a lifting servo motor, a lifting frame and a suction cup. The suction cup is provided at the bottom of the lifting frame, and the lifting servo motor is used to drive the suction cup above the lifting frame to move up and down.

[0013] Furthermore, it also includes a touch display, which is disposed on the outer side of the gantry along its length.

[0014] Furthermore, the core support plate includes a base plate, a second slider is provided at the rear end of the lower surface of the base plate, support rollers are provided on both sides of the front end of the lower surface, and a slide rail adapted to the second slider is provided on the base.

[0015] Furthermore, two support rollers are respectively provided on both sides of the front end of the substrate, and the two support rollers are arranged along the extension direction of the slide rail.

[0016] Unlike existing technologies, the dual-mode iron core laminating device described above features a first laminating area and a second laminating area symmetrically arranged on its base. The device also includes a gantry and a longitudinal drive mechanism. The gantry has two or more iron core grippers, and the longitudinal drive mechanism moves the gantry longitudinally, allowing the grippers to be moved to the first laminating area for core laminating operations. Meanwhile, preparatory work for laminating can be performed in the second laminating area, such as removing the already laminated iron cores (demolding) and adding new cores. When the first laminating area is complete, the longitudinal drive mechanism moves the gantry and grippers to the second laminating area for further work. Therefore, by repeating this process, the iron core grippers can operate without stopping the machine, significantly improving the efficiency of iron core laminating operations.

[0017] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0018] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0019] In the accompanying drawings of the instruction manual:

[0020] Figure 1 This is a schematic diagram of the dual-mode iron core lamination device described in a specific embodiment;

[0021] Figure 2 This is a schematic diagram showing the connection between the gantry and the longitudinal movement drive device in a specific embodiment;

[0022] Figure 3 This is a schematic diagram of the structure of the gantry and the iron core gripper described in the specific implementation method;

[0023] Figure 4 for Figure 2 A magnified view of part A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the iron core bearing plate described in a specific embodiment.

[0025] The reference numerals used in the above figures are explained as follows:

[0026] 1. First stack area; 2. Second stack area; 21. Core fixing plate; 22. Core bearing plate; 3. Core gripper;

[0027] 100. Base; 101. Longitudinal transfer track; 103. Gantry frame;

[0028] 104. Support beam; 1041. Cable protection cable chain; 105. Lateral track; 106. Lateral servo motor;

[0029] 107. Transverse lead screw assembly; 108. Drive component;

[0030] 31. Lifting servo motor; 32. Vertical mounting plate; 33. Upper frame plate; 34. Vertical guide rod; 35. Horizontal sliding plate; 36. Sliding sleeve; 37. Lower frame plate; 38. Suction cup mounting plate; 39. Extension rod; 40. Suction cup; 1031. Support column; 1032. Crossbeam;

[0031] 1011, First slider; 1012, Transmission plate; 1013, Telescopic end; 1014, Connecting plate;

[0032] 221. Substrate; 222. Slide rail; 224. Second slider; 225. Support roller; Detailed Implementation

[0033] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0034] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0035] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0036] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0037] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0038] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0039] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0040] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0041] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0042] Please see Figures 1 to 5 This embodiment provides a dual-mode iron core stacking device for stacking iron cores (i.e., single silicon steel sheets) one by one to form an electromagnet core with a certain height and number of layers. The dual-mode refers to the fact that the iron core stacking device can simultaneously perform stacking operations and pre-stack preparation operations, and the iron core gripper 3 can switch between the two modes, enabling the iron core gripper 3 to operate without stopping, thereby improving the efficiency of the iron core stacking operation.

[0043] like Figure 1 As shown, in this embodiment, the dual-mode iron core lamination device includes: a base 100, a gantry 103, and a longitudinal movement drive device (including a drive component 108).

[0044] The base 100 is symmetrically provided with a first stacked plate area 1 and a second stacked plate area 2 along the width direction. The first stacked plate area 1 and the second stacked plate area 2 are respectively provided with a core support plate 22 and two or more core fixing plates 21. The core fixing plates 21 are provided on both sides of the core support plate 22 along the length direction. The base 100 is provided with longitudinal moving rails 101 on both sides along the length direction.

[0045] The length direction mentioned above is Figure 1 The arrow X points in the width direction, the arrow Y points in the height direction, and the arrow Z points in the height direction. The base 100 has a certain height. The first stacking area 1 and the second stacking area 2 on the base 100 are two independent areas with the same function: core stacking. The core fixing plate 21 is used to place the cores to be stacked. Multiple fixing rods can be installed on the upper surface of the core fixing plate 21, abutting against the sides of the cores to restrict their position on the core fixing plate 21. The base 100 can have two or more core fixing plates 21, each holding a core of a different shape. During the stacking operation, the core gripper 3 sequentially picks up different cores from different core fixing plates 21 and stacks them onto the core support plate 22, thus forming an electromagnet core with a certain height and number of layers.

[0046] like Figure 2 and Figure 3As shown, a gantry frame 103 spans the base 100 along its length. The gantry frame 103 includes a horizontally arranged crossbeam 1032 and vertically arranged support columns 1031 at both ends of the crossbeam 1032. A transverse track 105 and two or more core grippers 3 slidably arranged along the transverse track 105 are provided on the crossbeam 1032. In this embodiment, only two core grippers 3 are provided on the crossbeam 1032, but this application is not limited to two core grippers 3. The core grippers 3 are used to grip the cores on the core fixing plate 21 and stack them onto the core bearing plate 22. The iron core gripper 3 includes a horizontal servo motor 106, a lifting servo motor 31, and a suction cup 40. The suction cup 40 can be installed on the bottom of the iron core gripper 3 via a suction cup mounting plate 38. The horizontal servo motor 106 is used to drive the iron core gripper 3 to move along the horizontal track 105 on the crossbeam 1032, thereby moving the iron core gripper 3 between the iron core fixing plate 21 and the iron core bearing plate 22. The lifting servo motor 31 is used to drive the suction cup 40 to lift and lower to grip the iron core and place it on the iron core bearing plate 22.

[0047] like Figure 2 As shown, a first slider 1011 is provided at the bottom of the support column 1031, and the first slider 1011 is slidably connected to the longitudinal track 101 on the corresponding side. The longitudinal movement drive device includes two telescopic drive members 108, which are disposed on both sides of the base 100 along the length direction and parallel to the longitudinal track 101. The telescopic ends 1013 of the drive members 108 are connected to the bottom of the support column 1031 through a transmission plate 1012. The longitudinal movement drive device is used to drive the gantry 103 to move along the width direction so that the iron core gripper 3 switches between the first lamination area 1 and the second lamination area 2.

[0048] In this embodiment, when the gantry crane 103 is in the first stacking area 1, the two core grippers 3 perform core stacking operations in the first stacking area 1. At this time, the second stacking area 2 can perform preparatory work for the stacking operation, such as adding cores to the core fixing plate 21 for stacking and removing the stacked cores from the core support plate 22. When the first stacking area 1 completes the stacking operation, the gantry crane 103 can be driven by the longitudinal drive device to move along the longitudinal track 101 to the second stacking area 2 for stacking operations. At this time, the first stacking area 1 can also perform preparatory work for the stacking operation. Therefore, by repeating the above process, the core grippers 3 can operate without stopping, greatly improving the efficiency of the core stacking operation.

[0049] In this embodiment, a transverse servo motor 106 is provided at both ends of the crossbeam 1032. The transverse servo motor 106 is connected to the corresponding iron core gripper 3 via a lead screw assembly to drive the iron core gripper 3 to move laterally. Each iron core gripper 3 includes a lifting servo motor 31, a lifting frame, and a suction cup 40. The suction cup 40 is located at the bottom of the lifting frame, and the lifting servo motor 31 is used to drive the suction cup 40 above the lifting frame to move up and down.

[0050] like Figure 1 and Figure 3 As shown, the iron core gripper 3 includes a lifting servo motor 31, a transverse servo motor 106, a transverse sliding plate 35, a lifting frame, and multiple suction cups 40. The transverse sliding plate 35 is slidably connected to the transverse slide rail and is driven to move transversely by the transverse servo motor 106. The transverse sliding plate 35 is located on the upper surface of the crossbeam, and a slider adapted to the transverse track 105 is provided at the bottom of the transverse sliding plate 35. Transverse servo motors 106 are respectively provided at both ends of the transverse track 105. The transverse servo motors 106 are connected to the transverse sliding plate 35 via a transverse lead screw assembly 107, thereby driving the transverse sliding plate 35 to move along the transverse track 105. The transverse lead screw assembly 107 is the lead screw and nut 312 assembly in the prior art; however, in this embodiment, the lead screw and nut 312 assembly is horizontally arranged and used to drive transverse movement, hence the name transverse lead screw assembly 107.

[0051] like Figure 1 As shown, the core loading and unloading device also includes a cable tray, which includes a support beam 104 arranged parallel to the crossbeam of the gantry frame 103 above the beam, and a cable protection drag chain 1041 arranged on the support beam 104. The cable of the lifting servo motor 31 is disposed inside the cable protection drag chain 1041.

[0052] like Figure 2 As shown, in this embodiment, the four corners of the transverse sliding plate 35 are respectively provided with sliding sleeves 36;

[0053] The lifting frame includes an upper frame plate 33, a lower frame plate 37, and multiple vertical guide rods 34 connecting the upper frame plate 33 and the lower frame plate 37. The vertical guide rods 34 are slidably fitted into corresponding sliding sleeves 36. The lifting frame is driven to rise and fall by the lifting servo motor 31. Multiple suction cups 40 are respectively positioned below the lower frame plate via vertically arranged extension rods 39 for adsorbing the iron core. A vertical mounting plate is provided on the upper surface of the transverse sliding plate 35, and the lifting servo motor 31 is fixedly mounted on the top of the vertical mounting plate 32. The vertical mounting plate 32 is fixed vertically and has a considerable height, extending upwards beyond the upper frame plate from the transverse sliding plate. Furthermore, the vertical guide rods 34 serve both to connect the upper frame plate 33 and the lower frame plate to form the lifting frame and to cooperate with the sliding sleeves 36 to provide lifting guidance. Multiple vertical guide rods 34 are arranged parallel to each other in the vertical direction, and the outer diameter of the vertical direction is adapted to the inner diameter of the sliding sleeve 36, so that each vertical guide rod 34 can slide up and down in the sliding sleeve 36 without significant horizontal wobbling.

[0054] like Figure 3 As shown, the driving component 108 and the transmission plate 1012 are disposed on the outer side of the longitudinal track 101. The driving component 108 can be any one of a hydraulic cylinder, a pneumatic cylinder, or a linear motor. The transmission plate 1012 is fixedly connected to the bottom of the connecting plate 1014. When the driving component 108 drives the telescopic end 1013 to extend or retract longitudinally, the telescopic end 1013 drives the transmission plate 1012 to move synchronously. The transmission plate 1012 is fixedly connected to the bottom of the support column 1031, thereby driving the gantry frame 103 to move along the longitudinal track. The transmission plate 1012 can be made of steel plate, aluminum alloy plate, etc., and can be an L-shaped plate, with one end fixedly connected to the telescopic end 1013 and the other end connected to the bottom of the support column 1031. To ensure smooth movement of the gantry frame 103, the driving component 108 is provided on both sides of the gantry frame 103, and the two driving components 108 extend and retract synchronously.

[0055] like Figure 2 and Figure 4As shown, in this embodiment, to improve the accuracy of the sliding fit between the gantry 103 and the longitudinal rails 101 and the stability of their movement, two longitudinal rails 101 are arranged side by side on both sides of the base 100 along its length. Furthermore, an inverted T-shaped connecting plate 1014 is provided at the bottom of the support column 1031. The connecting plate 1014 has two first sliders 1011 along both its length and width directions. The two first sliders 1011 along the length direction correspond to the two parallel longitudinal rails 101. The upper protrusion in the middle of the inverted T-shaped connecting plate 1014 is fixed to the support column 1031, and the first sliders 1011 are arranged on the horizontal bottom plate. In this embodiment, at least four first sliders 1011 are provided at the bottom of the connecting plate 1014 to cooperate with the two longitudinal rails 101, thereby greatly improving the stability of the fit between the gantry 103 and the longitudinal rails 101 in both the width and length directions.

[0056] like Figure 1 As shown, in this embodiment, the dual-mode iron core lamination device also includes a touch display. The touch display is disposed on the outer side of the gantry 103 along the length direction. The touch display is used to display the status and parameters of the device operation process and to receive control operations performed on it.

[0057] like Figure 1 and Figure 5 As shown, in this embodiment, to facilitate the loading and unloading of the core support plate 22 on the base 100, a sliding disassembly device is adopted for the core support plate 22. The core support plate 22 includes a base plate 221. A second slider 224 is provided at the rear end of the lower surface of the base plate 221, and support rollers 225 are respectively provided on both sides of the front end of the lower surface. A slide rail 222 adapted to the second slider 224 is provided on the base 100. Therefore, when it is necessary to remove the core support plate from the base 100, it is only necessary to push the base plate 221 backward, so that the second slider on the base plate 221 separates from the slide rail 222. In this embodiment, the support rollers 225 can effectively support the front end of the base plate 221 and roll in connection with the base 100, thereby reducing the resistance when the base plate 221 slides. By cooperating with the support rollers 225 to move along the slide rail 222, the second slider 224 separates from the slide rail 222, thereby removing the core from the base plate 221. Furthermore, the second slider 224 is not provided at the front end of the substrate 221, but only at the rear end. Therefore, the substrate 221 can be disengaged from the sliding track by moving a small distance, making it easy to remove the substrate 221 and the iron core on it together to realize the iron core molding.

[0058] Furthermore, in order to ensure the support force at the front end of the substrate 221, two support rollers 225 are respectively provided on both sides of the front end of the substrate 221, and the two support rollers 225 are arranged along the extension direction of the slide rail 222.

[0059] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A dual-mode core lamination device, characterized in that, include: A base platform, on which a first stacked plate area and a second stacked plate area are symmetrically arranged along the width direction. A core support plate and two or more core fixing plates are detachably arranged on the first stacked plate area and the second stacked plate area, respectively. The core fixing plates are arranged on both sides of the core support plate along the length direction. Longitudinal tracks are arranged on both sides of the base platform along the length direction. A gantry frame, spanning the length of the platform above the base, includes a horizontally arranged crossbeam and vertically arranged support columns at both ends of the crossbeam. The crossbeam is provided with a transverse track and two or more iron core grippers that slide along the transverse track. The iron core grippers are used to grab iron cores from the iron core fixing plate and stack them onto the iron core bearing plate. The bottom of the support column is provided with a first slider, which is slidably connected to the longitudinal track on the corresponding side. The longitudinal movement drive device includes two telescopic drive components, which are disposed on both sides of the base along the length direction and parallel to the longitudinal movement track. The telescopic ends of the drive components are connected to the bottom of the support column through a transmission plate. The longitudinal movement drive device is used to drive the gantry frame to move along the width direction so that the iron core gripper switches between the first stacked plate area and the second stacked plate area.

2. The dual-mode core lamination device according to claim 1, characterized in that, Two longitudinal tracks are arranged side by side on both sides of the base along its length. The bottom end of the support column is provided with an inverted T-shaped connecting plate. The connecting plate is provided with two first sliders along the length direction and along the width direction. The two first sliders along the length direction are corresponding to the two longitudinal tracks arranged side by side.

3. The dual-mode core lamination device according to claim 2, characterized in that, The driving component and the transmission plate are disposed on the outside of the longitudinal track. The driving component is any one of a hydraulic cylinder, a pneumatic cylinder, or a linear motor. The transmission plate is fixedly connected to the bottom of the connecting plate.

4. The dual-mode core lamination device according to claim 1, characterized in that, The transverse track is slidably equipped with two iron core grippers. A transverse servo motor is provided at each end of the crossbeam. The transverse servo motor is connected to the corresponding iron core gripper through a lead screw assembly to drive the iron core gripper to move laterally. Each iron core gripper includes a lifting servo motor, a lifting frame, and a suction cup. The suction cup is located at the bottom of the lifting frame, and the lifting servo motor is used to drive the suction cup above the lifting frame to move up and down.

5. The dual-mode core lamination device according to claim 1, characterized in that, It also includes a touch display, which is disposed on the outer side of the gantry along its length.

6. The dual-mode core lamination device according to claim 1, characterized in that, The core support plate includes a base plate, a second slider is provided at the rear end of the lower surface of the base plate, support rollers are provided on both sides of the front end of the lower surface, and a slide rail adapted to the second slider is provided on the base.

7. The dual-mode core lamination device according to claim 6, characterized in that, Two support rollers are respectively provided on both sides of the front end of the substrate, and the two support rollers are arranged along the extension direction of the slide rail.

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