A heat-conducting sheet feeding device

Abstract

The application is a divisional application of the original application with the application number 2025102410494. The present application relates to the technical field of automatic transfer equipment, in particular to a heat-conducting sheet feeding device. The heat-conducting sheet comprises coplanar sheet material I and sheet material II; the heat-conducting sheet is attached to a bottom film, the bottom film is wound on a material tray, and the material tray is rotatably installed on the frame of a feeder; the feeder comprises a stripping knife installed on a moving frame, the bottom film extends from the material tray to the upper end surface and the front edge of the stripping knife; a material receiving platform coplanar with the upper end surface of the stripping knife and located on the side of the front edge of the stripping knife; a pair of tensioning rollers respectively installed on the moving frame and the frame of the feeder, the bottom film extending from the stripping knife is S-shaped and wound on the pair of tensioning rollers; a rotary driven winding roller; further comprising: a material attaching head, the material attaching head comprises a suction head, the suction head is provided with a first suction surface and a second suction surface, a moving assembly for moving the material attaching head; and a folding frame provided with a folding roller. The automatic feeding and folding of the heat-conducting sheet can be realized.

Description

[0001] The present application is a divisional application, the original application date is March 3, 2025, the original application number is 2025102410494, and the original invention name is: a three-dimensional mounting equipment for heat-conducting sheets. TECHNICAL FIELD

[0002] The present application relates to the technical field of automatic transfer equipment, in particular to a heat-conducting sheet feeding device. BACKGROUND

[0003] With the miniaturization development of high-power electronic devices, the heat generation per unit volume increases sharply, and high-efficiency heat dissipation design is urgently needed to avoid performance degradation. Heat-conducting sheets are widely used to fill the air gap between devices and shells due to their high thermal conductivity and flexible fitting characteristics, and to build heat conduction paths. Traditional heat-conducting sheet mounting equipment is mainly designed for flat or simple curved surfaces, and adopts vacuum adsorption combined with roller pressing process.

[0004] However, when the heat-conducting sheet needs to be attached to two intersecting surfaces (such as the plug-in part shell of a charging head), it is difficult to directly press all surfaces at the same time to complete the attachment of the heat-conducting sheet, and when the target surface contains vertical or irregular intersecting surfaces, the traditional feeding device cannot realize the automatic feeding and edge folding of the heat-conducting sheet. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the present application provides a heat-conducting sheet feeding device which can realize the automatic feeding and edge folding of the heat-conducting sheet.

[0006] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme:

[0007] A heat-conducting sheet feeding device, the heat-conducting sheet includes coplanar sheet material one and sheet material two; comprising: a feeder, a bottom film and a tray, the heat-conducting sheet is attached to the bottom film, the bottom film is wound on the tray, and the tray is rotatably installed on the frame of the feeder;

[0008] The feeder comprises:

[0009] A stripping knife is installed on the moving frame, and the bottom film extends from the tray to the upper end surface and the front edge of the stripping knife;

[0010] A receiving platform is coplanar with the upper end surface of the stripping knife and located on one side of the front edge of the stripping knife, and a sensor is arranged corresponding to the receiving platform;

[0011] A pair of tensioning rollers are installed on the moving frame and the frame of the feeder, respectively, and the bottom film extending from the stripping knife is S-shaped and wound on the pair of tensioning rollers;

[0012] A winding roller is driven to rotate, and the distal end of the bottom film extending from the tensioning roller is wound on the winding roller;

[0013] Further comprising:

[0014] The material sticking head comprises a suction head, and the suction head is provided with a first suction surface and a second suction surface, and the first suction surface and the second suction surface are used for sucking the first sheet material and the second sheet material respectively.

[0015] A moving assembly for moving the material sticking head;

[0016] The folding frame is provided with a folding roller which is adapted to the width of the second sheet material.

[0017] The above technical scheme can achieve the following beneficial effects:

[0018] The application provides a heat-conducting sheet feeding device, and the process of automatic feeding comprises the following steps:

[0019] Pre-dialing and separating: the moving frame body moves to the position close to the stripping knife and the material receiving platform, the winding roller rotates to drive the bottom film to be transported towards the winding roller, the bottom film passing the front edge of the stripping knife is separated from the heat-conducting sheet attached to the upper end, the front end of the separated heat-conducting sheet moves to the preset distance on the material receiving platform until the sensor on the material receiving platform detects, and the bottom film is stopped from being transported at this time;

[0020] Sucking the material: the material sticking head is moved to the position where the first suction surface faces and is attached to the first sheet material, and the heat-conducting sheet is sucked, and at this time, the material sticking head is pressed on the stripping knife and the material receiving platform; during the process, the abutting plate is in the second state to prevent the abutting plate from colliding with the upper end surface of the stripping knife; it should be noted that the abutting plate is made of rigid material, and the suction surface is made of flexible material.

[0021] Separating the material: the moving frame body moves away from the material receiving platform until the sucked heat-conducting sheet is separated from the bottom film, and during the process, the pair of material tensioning rollers move away from each other to tension the bottom film, so as to realize the automatic feeding of the heat-conducting sheet.

[0022] Folding the edge: the material sticking head is relatively moved to the position above the second sheet material and the folding roller faces the abutting plate, the material sticking head is relatively moved to the folding roller to press the second sheet material from the root to the end on the second suction surface, and the second sheet material is sucked by the second suction surface. DETAILED DESCRIPTION

[0023] Figure 1 FIG. 1 is a schematic view of a heat-conducting sheet in an embodiment of the application;

[0024] Figure 2 FIG. 3 is a schematic view of a workpiece in an embodiment of the application;

[0025] Figure 3 FIG. 5 is a schematic view of a heat-conducting sheet three-dimensional sticking equipment in an embodiment of the application;

[0026] Figure 4 FIG. 6 is a schematic view of a heat-conducting sheet three-dimensional sticking equipment in an embodiment of the application; Figure 3 FIG. 6 is a schematic view of a heat-conducting sheet three-dimensional sticking equipment in an embodiment of the application;

[0027] FIG. 6 is a schematic view of a heat-conducting sheet three-dimensional sticking equipment in an embodiment of the application;Figure 5 This is a schematic diagram of the material attaching head in one embodiment of this application;

[0028] Figure 6 This is an exploded view of the material application head component in one embodiment of this application;

[0029] Figure 7 This is a schematic diagram of the moving component and the application head in one embodiment of this application;

[0030] Figure 8 This is a three-dimensional structural diagram of the feeder in one embodiment of this application;

[0031] Figure 9 This is a schematic diagram of the planar structure of the feeder in one embodiment of this application;

[0032] Figure 10 This is a schematic diagram of the tooling in one embodiment of this application;

[0033] Figure 11 This is a schematic diagram of a folding frame in one embodiment of this application.

[0034] In the diagram: 1-Heat conductive sheet; 101-Sheet material one; 102-Sheet material two;

[0035] 2-Packing head; 20-Suction head; 201-Suction surface A; 202-Suction surface B; 203-Groove; 21-Pressure feeder; 211-Support plate; 212-Plate frame; 213-Elastic element one; 214-Driver; 215-Limit block; 22-Mounting bracket;

[0036] 3-Folding frame; 31-Folding roller; 32-Frame body; 33-Roller seat; 34-Elastic component two;

[0037] 4-Tooling; 40-Groove;

[0038] 5-Moving components;

[0039] 6-Feeder; 60-Bottom film; 61-Material tray; 62-Moving frame; 620-Peeling knife; 63-Receiving platform; 64-Sheeting roller; 65-Twist roller; 66-Film pressing device; 661-Plate; 662-Pressure plate;

[0040] 9-Workpiece; 90-Target surface; 901-Surface A; 902-Surface B. Detailed Implementation

[0041] Example 1

[0042] This embodiment provides, for example Figure 3 The illustrated three-dimensional mounting equipment for thermal conductive sheets is used to... Figure 1 The heat-conducting sheet 1 shown is attached to Figure 2The target surface 90 of the workpiece 9 shown includes a first surface 901 and a second surface 902 connected to the first surface 901, and the heat-conducting sheet 1 includes a first sheet 101 and a second sheet 102 respectively corresponding to the first surface 901 and the second surface 902, and the heat-conducting sheet 1 and the target surface 90 are connected through an adhesive layer, and further include:

[0043] As shown in Figure 5 and Figure 6 the material applying head 2 includes a suction head 20 and a pressing device 21, the suction head 20 is provided with a first suction surface 201 and a second suction surface 202 corresponding to the first surface 901 and the second surface 902 respectively and provided with suction holes, the first suction surface 201 and the second suction surface 202 are respectively used for adsorbing the first sheet 101 and the second sheet 102, and the pressing device 21 includes an abutting plate 211, the abutting plate 211 includes a first state in which a front edge of the abutting plate 211 is located at a joint position of the first suction surface 201 and the second suction surface 202.

[0044] a moving assembly 5 for moving the material applying head 2 and / or the workpiece 9;

[0045] When the material applying head 2 adsorbing the heat-conducting sheet 1 moves to a position where the first sheet 101 is directly opposite to the first surface 901 and is attached to the first surface 901, the heat-conducting sheet 1 corresponding to the front edge position of the abutting plate 211 is abutted at the joint position of the first surface 901 and the second surface 902, and the moving assembly 5 is used for moving the material applying head 2 in an extension direction of the second surface 902 to make the abutting plate 211 press the second sheet 102 from a root to an end on the second surface 902.

[0046] Based on the above device, a heat-conducting sheet attached to a pair of intersecting surfaces can be realized. Figure 2 As shown in the drawings, in the embodiment, the first surface 901 corresponds to an upper bottom surface of a cavity in the workpiece 9, and the second surface 902 is a side surface perpendicular to the first surface 901. Specifically, in an embodiment, the workpiece 9 is a plug part of a charging head, the first surface 901 corresponds to an inner wall of a cavity of a housing of the plug part, and the second surface 902 corresponds to a side wall of an electronic device in the cavity of the housing of the plug part, and the heat-conducting sheet 1 is used for uniformly transferring heat on the electronic device to the inner wall of the cavity of the housing of the plug part.

[0047] If the abutting plate 211 is in hard contact with the second sheet 102, the stability of the pressure applied to the second sheet 102 needs to rely on the accurate control of the track of the material applying head 2, which has a high control difficulty and poor stability. In this regard, in combination with Figure 6As shown, in the embodiment, the front edge of the abutting plate 211 protrudes from the B suction surface 202, and the presser 21 further comprises a plate frame 212, the abutting plate 211 is rotatably (corresponding to the rotating joint A) installed on the plate frame 212, and an elastic element I 213 is arranged between the plate frame 212 and the abutting plate 211. In the process of pressing the sheet material II 102 from the root to the end on the B surface 902 by the abutting plate 211, the elastic element I 213 is used to apply a rotating elastic force to the abutting plate 211 in the direction of abutting the B surface 902. The limiting structure is further arranged on the material pressing head 2, and in the natural state, the elastic element I 213 abuts the abutting plate 211 against the limiting structure. In the present application, in the process of pressing the sheet material II 102 from the root to the end on the B surface 902 by the abutting plate 211, the abutting plate 211 elastically abuts the sheet material II 102 on the B surface 902 to ensure the stability of the pressing force. The front edge of the abutting plate 211 protrudes from the B suction surface 202, on the one hand, when the sheet material I 101 is directly opposite and attached to the A surface 901, it can ensure that the B suction surface 202 is not fully attached to the B surface 902, on the other hand, it leaves space for the abutting plate 211 to rotate in the direction of storing energy of the elastic element I 213. In the embodiment, the elastic element I 213 is a compression spring arranged between the abutting plate 211 and the plate frame 212, and in other embodiments, the elastic element I 213 can be a torsion spring.

[0048] Further, in the embodiment, in combination with Figure 1 and Figure 4 As shown, in the natural state, the sheet material I 101 and the sheet material II 102 are coplanar, and further comprising Figure 11 As shown, the folding frame 3 is provided with a folding roller 31 corresponding to the width of the sheet material II 102, and after the A suction surface 201 adsorbs the sheet material I 101, the folding roller 31 is used to press the sheet material II 102 on the B surface 902 during the relative movement of the folding frame 3 and the material pressing head 2. By first adsorbing the sheet material I 101 and then relatively moving the material pressing head 2 to the sheet material II 102 above the folding roller 31, and the folding roller 31 is directly opposite to the abutting plate 211, and the material pressing head 2 is continuously moved to the folding roller 31 to press the sheet material II 102 from the root to the end on the B suction surface 202, the B suction surface 202 adsorbs the sheet material II 102, realizes the folding work, the above work can drive the material pressing head 2 and / or the folding frame 3 to move to realize, in the embodiment, the folding frame 3 is installed on the fixed frame body, and the folding work is performed by driving the material pressing head 2 to move through the moving assembly 5. Therefore, the automatic folding and pressing of the heat-conducting sheet 1 of the planar sheet material is realized, and the sheet material is adsorbed on the A suction surface 201 and the B suction surface 202.

[0049] In the embodiment, the folding frame 3 comprises a frame body 32, a roller seat 33 is slidably connected to the frame body 32 in the horizontal direction, the folding roller 31 is rotatably installed at one end of the sliding direction of the roller seat 33, and a second elastic member 34 is arranged between the roller seat 33 and the frame body 32, and the second elastic member 34 is used to apply a spring force to the roller seat 33 towards the side of the folding roller 31. Based on the above device, when folding, in the process of pressing the second sheet 102 from the root to the end on the suction surface 202, the folding roller 31 is subjected to horizontal extrusion by the material sticking head 2, so that the roller seat 33 is displaced towards the energy storage direction of the second elastic member 34, and the second elastic member 34 is used to tightly roll the folding roller 31 on the suction surface 202, so as to ensure the flatness of the second sheet 102 on the suction surface 202.

[0050] In combination Figure 10 As shown in the drawings, in the embodiment, a tooling 4 is further included, the tooling 4 is provided with a groove cavity 40 for receiving and locking the workpiece 9, and when the workpiece 9 is placed in the groove cavity 40 at the material sticking station, the first surface 901 faces upwards. The tooling 4 is used to position the workpiece 9 to ensure the material sticking quality. In the embodiment, the tooling 4 is transferred by the conveying belt below, and a lifting mechanism is arranged at the material sticking station. Before material sticking, the lifting mechanism lifts the tooling 4 away from the conveying belt, completes the material sticking, and then lowers the tooling 4 on the conveying belt to perform overall transfer.

[0051] In combination Figure 5 As shown in the drawings, in the embodiment, the material sticking head 2 comprises a mounting frame 22, the suction head 20 and the material pressing device 21 are mounted on the mounting frame 22, and the mounting frame 22 is connected with the moving end of the moving assembly 5.

[0052] In combination Figure 7 As shown in the drawings, in the embodiment, the moving assembly 5 comprises a three-axis mechanical arm for driving the material sticking head 2 to move linearly along the x, y and z axes. Specifically, the three-axis mechanical arm comprises an x-direction moving module, a y-direction moving module and a z-direction moving module, the y-direction moving module is mounted on the moving assembly of the x-direction moving module, a pair of z-direction moving modules are mounted on the moving assembly of the y-direction moving module, and a pair of arrayed material sticking heads 2 are respectively mounted on the moving assemblies of the pair of z-direction moving modules. In the embodiment, the moving assembly of the z-direction moving module and the material sticking head 2 further comprise a rotary driving device, the rotary driving device is used to drive the material sticking head 2 to rotate, and the rotary center line is parallel to the z direction. In an embodiment, the moving assembly 5 can be a joint mechanical arm. In other embodiments, the moving assembly 5 further comprises a moving device for driving the workpiece 9 to move, and the relative positional relationship between the material sticking head 2 and the workpiece 9 is changed by moving the workpiece 9 to realize the material sticking of the heat conduction sheet.

[0053] Further, in an embodiment (not shown), the mounting frame 22 is floatingly mounted on the moving end of the moving assembly 5 in a direction perpendicular to the nail surface 201, and an elastic element is arranged between the mounting frame 22 and the moving end of the moving assembly 5, which is used to apply an elastic force to the mounting frame 22 in the direction of the nail surface 201. When the sheet material 101 is attached to the nail surface 901, the attachment head 2 as a whole moves in the direction in which the elastic element is energized, and the pressure for attachment is applied by the elastic element, which can reduce the positioning accuracy when the sheet material 101 is attached.

[0054] In combination Figure 5 and Figure 6 As shown in FIGS. 1 and 2, in the embodiment, the pressure device 21 includes a driver 214, which is in transmission connection with the plate frame 212, and is used to drive the plate frame 212 to move so as to switch the abutting plate 211 between the state one and the state two. When the abutting plate 211 is in the state two, the abutting plate 211 is retracted into the inside of the nail surface 201 and the nail surface 202, and the groove portion 203 is arranged on the corresponding suction head 20 to accommodate the abutting plate 211. When the abutting plate 211 is in the state one, the front edge extends out of the groove portion 203.

[0055] In the embodiment, the driver 214 is a cylinder mounted on the mounting frame 22, the plate frame 212 is connected to the moving assembly of the driver 214 and is in sliding connection with the fixed assembly of the driver 214, and the limit block 215 is mounted on the plate frame 212. In the embodiment, the limit block 215 serves as the limiting structure, and in the natural state, the elastic element one 213 abuts against the limit block 215. In other embodiments, the plate frame 212 can be in sliding connection with the mounting frame 22. In other embodiments, the inner edge of the groove portion 203 can serve as the limiting structure.

[0056] A heat-conducting sheet three-dimensional attachment method based on a heat-conducting sheet three-dimensional attachment device, including the following steps:

[0057] S1, taking material, in the initial state, the sheet material one 101 and the sheet material two 102 are coplanar, the attachment head 2 is relatively moved to the nail surface 201 to be opposite to and attached to the sheet material one 101, so as to suck the heat-conducting sheet 1;

[0058] S2, edge folding, the attachment head 2 is relatively moved to the sheet material two 102 above the folding roller 31, and the folding roller 31 is opposite to the abutting plate 211, the attachment head 2 is relatively moved to the folding roller 31 to press the sheet material two 102 from the root to the end on the nail surface 202, and the sheet material two 102 is sucked by the nail surface 202;

[0059] S3, paste the bottom surface, moving assembly 5 moves the paste head 2 to the sheet material one 101 opposite and paste on the surface of the shell 901, corresponding to the front edge position of the heat dissipation sheet 1 is pressed on the intersection position of the shell surface 901 and the surface 902, at this time, the sheet material two 102 and the surface 902 are in a pre-pressing state; the pre-pressing state indicates that the sheet material two 102 and the surface 902 are not tightly attached or have a gap.

[0060] S4, paste the vertical surface, relative to the moving paste head 2 to the front end of the pressing plate 211, the sheet material two 102 is pressed on the surface 902 from the root to the end. In the process of pasting the vertical surface, the suction head 20 stops adsorbing the heat dissipation sheet 1.

[0061] Among them, the adhesive layer can be pre-set on the heat dissipation sheet 1 or the target surface 90.

[0062] Combined with Figure 3 , Figure 4 , Figure 8 And Figure 9 It is shown that in the embodiment, the adhesive layer is pre-set on the heat dissipation sheet 1. The heat dissipation sheet 1 is pasted on the bottom film 60, and the bottom film 60 is wound on the tray 61. The heat dissipation sheet 1 is arranged along the extension direction of the bottom film 60.

[0063] It also includes a feeder 6, and the tray 61 is rotatably installed on the frame of the feeder 6. The feeder 6 includes:

[0064] The stripping knife 620 is installed on the moving frame 62, and the bottom film 60 extends from the tray 61 to the upper end surface and the front edge of the stripping knife 620;

[0065] The receiving platform 63 is coplanar with the upper end surface of the stripping knife 620 and located on one side of the front edge of the stripping knife 620. A sensor is provided corresponding to the receiving platform 63;

[0066] A pair of tensioning rollers 64 are installed on the moving frame 62 and the frame of the feeder 6 respectively. The bottom film 60 extending out of the stripping knife 620 is S-shaped and wound on the pair of tensioning rollers 64;

[0067] The winding roller 65 is driven to rotate, and the distal end of the bottom film 60 extending out of the tensioning roller 64 is wound on the winding roller 65.

[0068] Based on the above device, the process of automatic feeding includes the following steps:

[0069] S01: pre-dial, the moving frame 62 moves to the stripping knife 620 and the receiving platform 63 close, the winding roller 65 rotates to drive the bottom film 60 to the winding roller 65, and in the conveying process, the bottom film 60 passing through the front edge of the stripping knife 620 is separated from the heat dissipation sheet 1 pasted on the upper end, the front end of the separated heat dissipation sheet 1 moves to the receiving platform 63 by a preset distance until it is detected by the sensor on the receiving platform 63, at this time, the conveying of the bottom film 60 is stopped;

[0070] S02: Sucking, moving the laminating head 2 to the position where the sucking surface 201 is opposite to and adheres to the sheet material 101, and sucking the heat-conducting sheet 1, at this time, the laminating head 2 is pressed on the stripping knife 620 and the receiving platform 63; during this process, the abutting plate 211 is in the second state to prevent the abutting plate 211 from colliding with the upper end surface of the stripping knife 620; it should be noted that the abutting plate 211 is made of rigid material, and the sucking surface is made of flexible material.

[0071] S03: Stripping, moving the frame body 62 to the side away from the receiving platform 63 until the heat-conducting sheet 1 sucked is separated from the bottom film 60, during this process, the pair of tensioning rollers 64 are away from each other to tension the bottom film 60, so as to realize the automatic feeding of the heat-conducting sheet 1.

[0072] Further, the feeder 6 further comprises a film pressing device 66 arranged between the tray 61 and the moving frame body 62, the film pressing device 66 comprises a pair of plate bodies driven to move oppositely, the bottom film 60 passes between the pair of plate bodies, after the step S01 is executed, the pair of plate bodies are moved oppositely to press the bottom film 60 to limit the movement of the bottom film 60. Specifically, the pair of plate bodies comprises a supporting plate 661 fixed on the frame body of the feeder 6 and a pressing plate 662 driven to move up and down by a cylinder. Specifically, the sensor on the receiving platform 63 is a fiber sensor arranged longitudinally on the receiving platform 63, and the receiving platform 63 is provided with a through hole corresponding to the fiber sensor.

[0073] The technical principles of the present application are described above in combination with specific embodiments, and these descriptions are only for explaining the principles of the present application, and cannot be explained as the limitation of the protection scope of the present application in any way. Based on the explanation herein, the person skilled in the art can think of other specific embodiments of the present application without creative labor, and these embodiments will fall within the protection scope of the present application.

Claims

1. A heat conducting sheet feeding device, characterized by: The heat-conducting sheet comprises coplanar sheet material one and sheet material two; it comprises: a feeder, a bottom film and a tray, the heat-conducting sheet is pasted on the bottom film, the bottom film is wound on the tray, and the tray is rotatably installed on the frame body of the feeder; The feeder comprises: A stripping knife installed on the moving frame body, and the bottom film extends from the tray to the upper end surface and the front edge of the stripping knife; A receiving platform coplanar with the upper end surface of the stripping knife and located on one side of the front edge of the stripping knife, and a sensor corresponding to the receiving platform is arranged; A pair of tensioning rollers installed on the moving frame body and the frame body of the feeder, and the bottom film extending from the stripping knife is S-shaped and wound on the pair of tensioning rollers; A winding roller driven to rotate, and the distal end of the bottom film extending from the tensioning rollers is wound on the winding roller; Further comprising: A pasting head, the pasting head comprises a suction head, the suction head is provided with a first suction surface and a second suction surface, and the first suction surface and the second suction surface are used for adsorbing the sheet material one and the sheet material two respectively; A moving assembly for moving the pasting head; An edge folding frame, the edge folding frame is provided with a folding roller corresponding to the width of the sheet material two; The pasting head further comprises a pressing device, the pressing device comprises a pressing plate, the pressing plate comprises a first state in which the front edge is located at the junction of the first suction surface and the second suction surface; The front edge of the pressing plate corresponding to the first state protrudes from the second suction surface, the pressing device further comprises a plate frame, the pressing plate is rotatably installed on the plate frame, and an elastic member one is arranged between the plate frame and the pressing plate; The pressing device comprises a driver in transmission connection with the plate frame, the driver is used for driving the plate frame to move so as to switch the pressing plate between the first state and a second state, when the pressing plate is in the second state, the pressing plate is retracted into the inside of the first suction surface and the second suction surface, a groove part for accommodating the pressing plate is arranged on the suction head corresponding to the inside of the first suction surface and the second suction surface, and when the pressing plate is in the first state, the front edge protrudes from the groove part.

2. The heat-conductive sheet loading device according to claim 1, wherein: The feeder further comprises a film pressing device arranged between the tray and the moving frame body, the film pressing device comprises a pair of plate bodies driven to move relative to each other, and the bottom film passes through the space between the pair of plate bodies.

3. The heat-conductive sheet loading device according to claim 2, wherein: The pair of plate bodies comprises a supporting plate fixed to the frame body of the feeder and a pressing plate driven to move up and down by a gas cylinder.

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