Grinding device for thermosensitive sheet

Abstract

The utility model provides a thermo-sensitive sheet grinding device, and relates to the technical field of thermo-sensitive sheet production. The thermo-sensitive sheet grinding device comprises an installation frame, a material shuttle mechanism, a grabbing mechanism, a workbench mechanism and a grinding mechanism are installed on the installation frame, the material shuttle mechanism is used for storing and placing thermo-sensitive sheets, the grabbing mechanism is used for grabbing the thermo-sensitive sheets on the material shuttle mechanism and placing the thermo-sensitive sheets on the workbench mechanism located at a material changing position, and the grinding mechanism comprises an installation frame. A first paper winding roller, a second paper winding roller and a grinding roller are rotatably mounted on the mounting frame, a first driving part, a second driving part and a third driving part are further mounted on the mounting frame, the two ends of abrasive paper are wound on the first paper winding roller and the second paper winding roller respectively, and the abrasive paper bypasses the grinding roller. The thermo-sensitive sheet grinding device can grind the surface of the thermo-sensitive sheet to be flat before a silicon carbide film is plated, so that the silicon carbide film does not generate protrusions after the surface of the thermo-sensitive sheet is plated with the silicon carbide film, and paper is prevented from being scratched by the protrusions of the silicon carbide film.

Description

Technical Field

[0001] This utility model relates to the field of thermal sheet production technology, and in particular to a thermal sheet grinding device. Background Technology

[0002] After a silicon carbide film is deposited on the surface of a thermal sheet, if there are any protrusions on the thermal sheet surface, the silicon carbide film surface will also protrude to maintain its original shape. Furthermore, because silicon carbide film is quite hard, it is difficult to polish it smooth. This means that when the thermal sheet contacts the paper for printing, the protrusions in the silicon carbide film will scratch the paper. Therefore, a thermal sheet polishing device needs to be designed to polish the surface of the thermal sheet smooth before silicon carbide film deposition, ensuring that the silicon carbide film does not protrude after deposition, thus preventing scratches from the silicon carbide film. Utility Model Content

[0003] To address the problems in the prior art, this application proposes a thermal sheet grinding device that can grind the surface of the thermal sheet flat before depositing silicon carbide film, so as to ensure that the silicon carbide film will not protrude after the thermal sheet is deposited, thereby avoiding scratches on the paper caused by the protrusion of silicon carbide film.

[0004] This utility model provides a thermal sheet grinding device, which includes a mounting frame. A shuttle mechanism, a gripping mechanism, a worktable mechanism, and a grinding mechanism are mounted on the mounting frame. The shuttle mechanism stores and holds thermal sheets. The gripping mechanism grips the thermal sheets from the shuttle mechanism and places them on the worktable mechanism in the material changing position. The grinding mechanism includes a mounting frame on which a first paper roll, a second paper roll, and a grinding roller are rotatably mounted. A first drive member, a second drive member, and a third drive member are also mounted on the mounting frame. Sandpaper is wound around the first and second paper rolls, respectively, and passes around the grinding roller. The first, second, and third drive members drive the first and second paper rolls and the grinding roller to rotate, respectively. The sandpaper can grind the surface of the thermal sheet placed on the worktable mechanism in the grinding position.

[0005] As a further improvement to the above technical solution:

[0006] Furthermore, in the aforementioned thermal sheet grinding device, a tension roller may also be rotatably mounted on the mounting frame, with the sandpaper passing around the tension roller, and the tension roller being used to tension the sandpaper.

[0007] The aforementioned thermal sheet grinding device further includes a worktable mechanism comprising a conveying assembly, a sliding bracket mounted on the conveying assembly, a lifting drive mounted on the sliding bracket, a worktable frame mounted on the lifting drive, and a positioning assembly mounted on the worktable frame for positioning and placing the thermal sheet.

[0008] Furthermore, in the aforementioned thermal sheet grinding device, the workbench is provided with an adsorption groove, which is connected to an adsorption connector. The adsorption connector can be connected to a suction machine to adsorb and fix the thermal sheet onto the workbench.

[0009] The aforementioned thermal sheet grinding device further includes a positioning component comprising positioning blocks respectively disposed on the right and rear sides of the workbench and limiting blocks respectively disposed on the left and front sides of the workbench. Support frames are provided on both the left and front sides of the workbench, and guide holes are provided on the support frames. A guide rod is mounted on the limiting block, and the guide rod is slidably installed within the guide hole. A driving block is provided at the end of the guide hole, and a driving spring is provided between the driving block and the support frame. The driving spring can drive the guide rod to slide along the guide hole so that the limiting block abuts and positions the thermal sheet against the opposite positioning block.

[0010] In the aforementioned thermal sheet grinding device, the conveying assembly further includes a conveying track, a lead screw rotatably mounted on the conveying track, a drive motor mounted on the conveying track, a threaded sleeve on the sliding bracket, the sliding bracket being slidably mounted on the conveying track, and the threaded sleeve being threadedly engaged with the lead screw. The drive motor can drive the lead screw to rotate, thereby moving the sliding bracket along the conveying track to the grinding working position or the material changing position.

[0011] The aforementioned thermal sheet grinding device further includes a shuttle mechanism comprising a mounting base, which is mounted on the mounting frame. The mounting base is equipped with a vertical drive assembly and a mounting bracket that is slidably mounted vertically. The vertical drive assembly can drive the mounting bracket to slide vertically relative to the mounting base. A storage shuttle is mounted on the mounting bracket, and multiple thermal sheets are stacked and spaced apart inside the storage shuttle.

[0012] The aforementioned thermal sheet grinding device further includes a gripping mechanism comprising a gripping base frame mounted on the mounting frame. The gripping base frame is equipped with a first horizontal drive assembly and a first gripping bracket slidably mounted along a first horizontal direction. The first horizontal drive assembly can drive the first gripping bracket to slide relative to the gripping base frame along the first horizontal direction. The first gripping bracket is equipped with a second horizontal drive assembly and a second gripping bracket slidably mounted along a second horizontal direction. The second horizontal drive assembly can drive the second gripping bracket to slide relative to the first gripping bracket along a second horizontal direction. The second gripping bracket is equipped with a third vertical drive assembly and a third gripping bracket slidably mounted along a vertical direction. The third vertical drive assembly can drive the third gripping bracket to slide relative to the second gripping bracket along a vertical direction. The third gripping bracket is provided with a gripping hand.

[0013] The above-mentioned technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of this utility model can be achieved.

[0014] The present invention provides a thermal sheet grinding device, which has at least the following advantages compared with the prior art: When it is necessary to grind the surface of the thermal sheet, the thermal sheet to be ground is first placed in the feed shuttle mechanism, and then the gripping mechanism grips the thermal sheet on the feed shuttle mechanism and places it on the worktable mechanism in the material changing position. The worktable mechanism moves to the grinding position, and the first drive, the second drive and the third drive are started. The first drive, the second drive and the third drive respectively drive the first paper roll, the second paper roll and the grinding roll to rotate. The sandpaper grinds the surface of the thermal sheet placed on the worktable mechanism in the grinding position. After the grinding operation is completed, the worktable mechanism moves to the material changing position, and the gripping mechanism grips the thermal sheet on the worktable mechanism and places it on the feed shuttle mechanism. This thermal sheet grinding device can grind the surface of the thermal sheet flat before the silicon carbide film is deposited, so as to ensure that the silicon carbide film will not protrude after the thermal sheet is deposited, thereby avoiding the silicon carbide film protrusion from scratching the paper.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein:

[0018] Figure 1 This shows a schematic diagram of the structure of the thermal sheet grinding device provided in an embodiment of the present invention;

[0019] Figure 2 This shows a schematic diagram of the grinding mechanism of the thermal sheet grinding device provided in this embodiment of the present invention;

[0020] Figure 3 This shows a schematic diagram of the worktable mechanism of the thermal sheet grinding device provided in this embodiment of the present invention;

[0021] Figure 4 This diagram shows a partial structural schematic of the worktable mechanism of the thermal sheet grinding device provided in an embodiment of the present invention.

[0022] Figure 5 This shows a schematic diagram of the gripping mechanism of the thermal sheet grinding device provided in this embodiment of the present invention;

[0023] Figure 6 This diagram shows the structure of the feed shuttle mechanism of the thermal sheet grinding device provided in this embodiment of the present invention.

[0024] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100-Thermal sheet grinding device; 110-Mounting frame; 120-Shuttle mechanism; 121-Mounting base frame; 122-Vertical drive assembly; 123-Mounting bracket; 124-Storage shuttle; 130-Gripping mechanism; 131-Gripping base frame; 132-First horizontal drive assembly; 133-First gripping bracket; 134-Second horizontal drive assembly; 135-Second gripping bracket; 136-Third vertical drive assembly; 137-Third gripping bracket; 138-Gripping hand; 140-Workbench mechanism; 141-Sliding bracket; 142-Lifting drive... Moving parts, 143-Workbench, 144-Adsorption tank, 145-Adsorption connector, 146-Positioning block, 147-Limiting block, 148-Support frame, 149-Guide rod, 150-Drive block, 151-Drive spring, 152-Conveying track, 153-Screw, 154-Drive motor, 160-Grinding mechanism, 161-Mounting frame, 162-First paper roll, 163-Second paper roll, 164-Grinding roll, 165-First driving component, 166-Second driving component, 167-Third driving component, 168-Sandpaper, 169-Tension roll. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] The present invention will be further described below with reference to the accompanying drawings.

[0033] This utility model provides a thermal sheet grinding device that can grind the surface of the thermal sheet flat before depositing silicon carbide film, so as to ensure that the silicon carbide film will not protrude after the thermal sheet is deposited, thereby avoiding the silicon carbide film protrusion from scratching the paper.

[0034] Please see Figure 1 and Figure 2 The thermal sheet grinding device 100 provided in this embodiment includes a mounting frame 110, on which a feed shuttle mechanism 120, a gripping mechanism 130, a worktable mechanism 140, and a grinding mechanism 160 are mounted. The feed shuttle mechanism 120 is used to store and place thermal sheets, and the gripping mechanism 130 is used to grip the thermal sheets on the feed shuttle mechanism 120 and place them on the worktable mechanism 140 in the material changing position. The grinding mechanism 160 includes a mounting frame 161, on which a first paper roll 162 and a second paper roll 16 are rotatably mounted. 3 and the grinding roller 164, the mounting bracket 161 is also equipped with a first drive member 165, a second drive member 166 and a third drive member 167, the two ends of the sandpaper 168 are respectively wound around the first paper roll 162 and the second paper roll 163, and the sandpaper 168 passes around the grinding roller 164. The first drive member 165, the second drive member 166 and the third drive member 167 drive the first paper roll 162, the second paper roll 163 to rotate and the grinding roller 164 to rotate respectively. The sandpaper 168 can grind the surface of the thermal sheet placed on the worktable mechanism 140 in the grinding working position.

[0035] When the surface of the thermal sheet needs to be ground, the thermal sheet to be ground is first placed in the feed shuttle mechanism 120. Then, the gripping mechanism 130 grips the thermal sheet on the feed shuttle mechanism 120 and places it on the worktable mechanism 140 in the material changing position. The worktable mechanism 140 moves to the grinding position and starts the first drive component 165, the second drive component 166, and the third drive component 167. The first drive component 165, the second drive component 166, and the third drive component 167 drive the first paper roll 162, the second paper roll 163, and the grinding roll 164 to rotate, respectively. The sandpaper 168 grinds the surface of the thermal sheet placed on the worktable mechanism 140 in the grinding position. After the grinding operation is completed, the worktable mechanism 140 moves to the material changing position, and the gripping mechanism 130 grips the thermal sheet on the worktable mechanism 140 and places it on the feed shuttle mechanism 120.

[0036] The thermal sheet grinding device 100 provided in this embodiment of the utility model can grind the surface of the thermal sheet flat before depositing silicon carbide film, so as to ensure that the silicon carbide film will not protrude after the thermal sheet is deposited, thereby avoiding the silicon carbide film protrusion from scratching the paper.

[0037] The thermal sheet grinding device 100 provided in this embodiment of the utility model, further please refer to... Figure 1 and Figure 2 A tension roller 169 can also be rotatably mounted on the mounting bracket 161. Sandpaper 168 passes around the tension roller 169, and the tension roller 169 is used to tension the sandpaper 168. When it is necessary to smooth the surface of the thermal sheet, the tension roller 169 tensions the sandpaper 168, which facilitates uniform contact between the sandpaper 168 and the surface of the thermal sheet, thereby improving the quality of smoothing the surface of the thermal sheet.

[0038] In this embodiment, please refer to Figure 1 and Figure 6 The shuttle mechanism 120 includes a mounting base 121, which is mounted on a mounting frame 110. A vertical drive assembly 122 and a mounting bracket 123, which is slidably mounted vertically, are mounted on the mounting base 121. The vertical drive assembly 122 can drive the mounting bracket 123 to slide vertically relative to the mounting base 121. A storage shuttle 124 is mounted on the mounting bracket 123, and thermal sheets are stacked and spaced within the storage shuttle 124. Because multiple thermal sheets are stacked and spaced within the storage shuttle 124, when it is necessary to grind the surface of the next layer of thermal sheets, the vertical drive assembly 122 drives the mounting bracket 123 to slide vertically relative to the mounting base 121, so that the gripping mechanism 130 can grip the next layer of thermal sheets.

[0039] The thermal sheet grinding device 100 provided in this embodiment of the utility model is described in detail in the following reference. Figure 3 and Figure 4The workbench mechanism 140 includes a conveying assembly, a sliding bracket 141 mounted on the conveying assembly, a lifting drive component 142 mounted on the sliding bracket 141, a workbench frame 143 mounted on the lifting drive component 142, and a positioning assembly mounted on the workbench frame 143 for positioning and placing the thermal sheet. The workbench frame 143 has an adsorption groove 144 connected to an adsorption connector 145, which can be connected to a suction machine to adsorb and fix the thermal sheet onto the workbench frame 143. When the surface of the thermal sheet needs to be ground, the thermal sheet to be ground is placed in the feed shuttle mechanism 120. Then, the gripping mechanism 130 grips the thermal sheet on the feed shuttle mechanism 120 and places it on the worktable mechanism 140 in the material changing position. The positioning component positions the thermal sheet. At the same time, the adsorption connector 145 is connected to the air suction machine to adsorb and fix the thermal sheet on the worktable frame 143. The lifting drive component 142 can drive the worktable frame 143 to rise and fall so that the thermal sheet moves closer to or away from the sandpaper 168.

[0040] In this embodiment, please refer to Figure 3 and Figure 4 The positioning assembly includes positioning blocks 146 respectively located on the right and rear sides of the workbench 143, and limiting blocks 147 respectively located on the left and front sides of the workbench 143. Support frames 148 are provided on the left and front sides of the workbench 143. Guide holes are provided on the support frames 148. Guide rods 149 are installed on the limiting blocks 147. The guide rods 149 are slidably installed in the guide holes. A drive block 150 is provided at the end of the guide holes. A drive spring 151 is provided between the drive block 150 and the support frame 148. The drive spring 151 can drive the guide rods 149 to slide along the guide holes so that the limiting blocks 147 abut against and position the thermal sheet on the opposite positioning block 146.

[0041] The thermal sheet grinding device 100 provided in this embodiment of the utility model is described in detail in the following reference. Figure 3 The conveying assembly includes a conveying track 152, on which a lead screw 153 is rotatably mounted. A drive motor 154 is mounted on the conveying track 152. A threaded sleeve is provided on a sliding bracket 141. The sliding bracket 141 is slidably mounted on the conveying track 152, and the threaded sleeve is threadedly engaged with the lead screw 153. The drive motor 154 can drive the lead screw 153 to rotate, thereby driving the sliding bracket 141 to move along the conveying track 152 to the grinding working position or the material changing position.

[0042] When the surface of the thermal sheet needs to be ground, the thermal sheet to be ground is first placed in the feed shuttle mechanism 120. Then, the drive motor 154 drives the lead screw 153 to rotate, thereby driving the sliding bracket 141 to move along the conveyor track 152 to the material changing position. The gripping mechanism 130 grips the thermal sheet on the feed shuttle mechanism 120 and places it on the workbench 143 at the material changing position. The drive spring 151 drives the guide rod 149 to slide along the guide hole so that the limiting block 147 abuts and positions the thermal sheet against the opposite positioning block 146. The drive motor 154 drives the lead screw 153 to rotate, thereby driving the sliding bracket 141 to move along the conveyor track 152 to the material changing position. 1. Move along the conveyor track 152 to the grinding working position, start the first drive component 165, the second drive component 166 and the third drive component 167. The first drive component 165, the second drive component 166 and the third drive component 167 drive the first paper roll 162, the second paper roll 163 to rotate and the grinding roll 164 to rotate respectively. Sandpaper 168 grinds the surface of the thermal sheet placed on the worktable mechanism 140 in the grinding working position. After the grinding operation is completed, the worktable mechanism 140 moves to the material changing position, and the gripping mechanism 130 grips the thermal sheet on the worktable mechanism 140 and places it on the shuttle mechanism 120.

[0043] The thermal sheet grinding device 100 provided in this embodiment of the utility model is described in detail in the following reference. Figure 1 and Figure 5 The gripping mechanism 130 includes a gripping base 131, which is mounted on a mounting frame 110. A first horizontal drive assembly 132 and a first gripping bracket 133 slidably mounted along a first horizontal direction are mounted on the gripping base 131. The first horizontal drive assembly 132 can drive the first gripping bracket 133 to slide relative to the gripping base 131 along a first horizontal direction. A second horizontal drive assembly 134 and a second gripping bracket 135 are slidably mounted along a second horizontal direction are mounted on the first gripping bracket 133. The second horizontal drive assembly 134 can drive the second gripping bracket 135 to slide relative to the first gripping bracket 133 along a second horizontal direction. A third vertical drive assembly 136122 and a third gripping bracket 137 are slidably mounted along a vertical direction are mounted on the second gripping bracket 135. The third vertical drive assembly 136122 can drive the third gripping bracket 137 to slide relative to the second gripping bracket 135 along a vertical direction. A gripping hand 138 is provided on the third gripping bracket 137.

[0044] When the gripping mechanism 130 grips the thermal sheet on the shuttle mechanism 120, firstly, the first horizontal drive assembly 132 drives the first gripping bracket 133 to slide relative to the gripping base 131 along the first horizontal direction to approach the shuttle mechanism 120. Then, the third vertical drive assembly 136 122 drives the third gripping bracket 137 to slide vertically downward relative to the second gripping bracket 135. Afterward, the second horizontal drive assembly 134 drives the second gripping bracket 135 to slide relative to the first gripping bracket 133 along the second horizontal direction, so that the gripper 138 extends below the thermal sheet. The third gripping bracket 137 is driven by the drive assembly 136122 to slide vertically upward relative to the second gripping bracket 135, so that the gripper 138 lifts and supports the thermal sheet. Finally, the second horizontal drive assembly 134 drives the second gripping bracket 135 to slide in the opposite direction relative to the first gripping bracket 133 in the second horizontal direction, so that the gripper 138 lifts and supports the thermal sheet and disengages from the material pick-up shuttle mechanism 120. The first horizontal drive assembly 132 drives the first gripping bracket 133 to slide in the opposite direction relative to the gripping base frame 131 in the first horizontal direction to approach the worktable mechanism 140 which is in the material changing position.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A device for grinding a thermal sheet, characterized in that, The thermal sheet grinding device (100) includes a mounting frame (110), on which a feed shuttle mechanism (120), a gripping mechanism (130), a worktable mechanism (140), and a grinding mechanism (160) are mounted. The feed shuttle mechanism (120) is used to store and place thermal sheets. The gripping mechanism (130) is used to grip the thermal sheets on the feed shuttle mechanism (120) and place them on the worktable mechanism (140) at the material changing position. The grinding mechanism (160) includes a mounting frame (161), on which a first paper roll (162), a second paper roll (163), and a grinding roll (164) are rotatably mounted. The 61) is also equipped with a first drive (165), a second drive (166) and a third drive (167). The two ends of the sandpaper (168) are respectively wound around the first paper roll (162) and the second paper roll (163), and the sandpaper (168) passes around the grinding roller (164). The first drive (165), the second drive (166) and the third drive (167) drive the first paper roll (162), the second paper roll (163) to rotate and the grinding roller (164) to rotate, respectively. The sandpaper (168) can grind the surface of the thermal sheet placed on the worktable mechanism (140) in the grinding working position.

2. The thermal sheet grinding device according to claim 1, characterized in that, A tension roller (169) may also be rotatably mounted on the mounting bracket (161), and the sandpaper (168) passes around the tension roller (169), which is used to tension the sandpaper (168).

3. The thermal sheet grinding device according to claim 1, characterized in that, The workbench mechanism (140) includes a conveying assembly, on which a sliding bracket (141) is mounted, on which a lifting drive (142) is mounted, on which a workbench frame (143) is mounted, and on which a positioning assembly is mounted, the positioning assembly being used to position and place the thermal sheet.

4. The thermal sheet grinding device according to claim 3, characterized in that, The workbench (143) is provided with an adsorption groove (144), which is connected to an adsorption connector (145). The adsorption connector (145) can be connected to a suction machine to adsorb and fix the heat-sensitive sheet on the workbench (143).

5. The thermal sheet grinding device according to claim 3, characterized in that, The positioning assembly includes positioning blocks (146) respectively disposed on the right and rear sides of the workbench (143) and limiting blocks (147) respectively disposed on the left and front sides of the workbench (143). The left and front sides of the workbench (143) are provided with support frames (148). The support frames (148) are provided with guide holes. The limiting blocks (147) are equipped with guide rods (149). The guide rods (149) are slidably installed in the guide holes. The end of the guide holes is provided with driving blocks (150). A driving spring (151) is provided between the driving blocks (150) and the support frames (148). The driving spring (151) can drive the guide rods (149) to slide along the guide holes so that the limiting blocks (147) abut against and position the thermal sheet on the opposite positioning block (146).

6. The thermal sheet grinding device according to claim 3, characterized in that, The conveying assembly includes a conveying track (152), on which a lead screw (153) is rotatably mounted. A drive motor (154) is mounted on the conveying track (152). A threaded sleeve is provided on the sliding bracket (141). The sliding bracket (141) is slidably mounted on the conveying track (152), and the threaded sleeve is threadedly engaged with the lead screw (153). The drive motor (154) can drive the lead screw (153) to rotate, thereby driving the sliding bracket (141) to move along the conveying track (152) to the grinding working position or the material changing position.

7. The thermal sheet grinding device according to claim 1, characterized in that, The shuttle mechanism (120) includes a mounting base (121) mounted on the mounting frame (110). A vertical drive assembly (122) and a mounting bracket (123) slidably mounted vertically are mounted on the mounting base (121). The vertical drive assembly (122) can drive the mounting bracket (123) to slide vertically relative to the mounting base (121). A storage shuttle (124) is mounted on the mounting bracket (123), and multiple thermal sheets are stacked and spaced inside the storage shuttle (124).

8. The thermal sheet grinding device according to claim 1, characterized in that, The gripping mechanism (130) includes a gripping base (131) mounted on the mounting frame (110). A first horizontal drive assembly (132) and a first gripping bracket (133) slidably mounted along a first horizontal direction are mounted on the gripping base (131). The first horizontal drive assembly (132) can drive the first gripping bracket (133) to slide relative to the gripping base (131) along a first horizontal direction. A second horizontal drive assembly (134) and a second gripping bracket slidably mounted along a second horizontal direction are mounted on the first gripping bracket (133). The second gripping bracket (135) is equipped with a second horizontal drive assembly (134) that can drive the second gripping bracket (135) to slide relative to the first gripping bracket (133) in a second horizontal direction. The second gripping bracket (135) is equipped with a third vertical drive assembly (136) (122) and a third gripping bracket (137) that is slidably mounted in a vertical direction. The third vertical drive assembly (136) (122) can drive the third gripping bracket (137) to slide relative to the second gripping bracket (135) in a vertical direction. The third gripping bracket (137) is provided with a gripper (138).

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