An insulation glass fiberboard finishing device

Abstract

The utility model provides a kind of insulating glass fibre board finishing device, belong to insulating glass fibre board production equipment technical field, including machine table and support shaft.The support shaft is set to be able to lift along its own axis, the bottom end of the support shaft is equipped with motor, the support shaft is equipped with chute, the chute is equipped with multiple polishing plate that is evenly distributed along the axis of the support shaft.Through being equipped with three polishing surfaces polishing plate, hole wall, upper hole and lower hole can be polished respectively, and multiple mesh numbers of each polishing surface are sequentially increased from bottom to top, with the descent of polishing plate, multiple polishing areas of each polishing surface can be sequentially contacted with the inner wall of plate opening from bottom to top, and polishing plate can carry out the polishing process from coarse grinding to fine grinding to polishing, to realize multiple polishing effects.

Description

Technical Field

[0001] This utility model belongs to the technical field of insulating fiberglass board production equipment, specifically referring to an insulating fiberglass board trimming device. Background Technology

[0002] Insulating fiberglass board is a material with excellent insulation, corrosion resistance and mechanical strength. It is mainly made of composite materials such as glass fiber and resin. Insulating fiberglass board can be used to make various types of circuit boards. Due to its good stability and non-flammability, it can greatly improve the reliability and safety of products. After the insulating fiberglass board is prepared, it needs to be cut according to the required shape, and then the cut surface is trimmed to remove the burrs generated by cutting.

[0003] When trimming a circular insulating fiberglass board with internal openings, it is relatively easy to remove the burrs on the outer edge by using a belt sander to grind around the outer edge. However, when trimming the inner wall of the hole, it is more difficult to remove the burrs due to the obstruction of the insulating fiberglass board itself.

[0004] Current equipment for grinding the inner holes of circular insulating fiberglass boards uses multiple grinding rollers arranged in a plane, with the number and position of the grinding rollers matching the number of inner holes in the insulating fiberglass board. The rotation of the grinding rollers is used to grind and finish the inner wall of the hole. However, existing equipment for grinding the inner holes of circular insulating fiberglass boards can only perform a single grinding effect and cannot perform different degrees of grinding, such as coarse grinding or fine grinding, on the inner holes of the insulating fiberglass board, which makes it difficult to meet higher usage requirements. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides an insulating glass fiber board trimming device, which at least partially solves the above problems.

[0006] The technical solution adopted by this utility model is as follows: This utility model proposes an insulating glass fiber board trimming device, including a machine base. The machine base is provided with a support shaft on its table surface that is consistent with the number and position of the holes in the board. The support shaft is configured to be able to move up and down along its own axis. The bottom end of the support shaft is provided with a motor for driving the support shaft to rotate. The support shaft is provided with a sliding groove, and a plurality of grinding plates are provided in the sliding groove, which are evenly distributed along the axis of the support shaft. The grinding plates are configured to be able to slide in the sliding groove along the radial direction of the support shaft. The grinding plate has a first grinding surface on the side facing the outside of the support shaft for grinding the hole wall. A second grinding surface and a third grinding surface are arranged above the first grinding surface in sequence. The second grinding surface and the third grinding surface are set as mutually symmetrical inclined surfaces for grinding the hole opening. The first grinding surface, the second grinding surface and the third grinding surface are each provided with multiple grinding areas with the mesh size increasing sequentially from bottom to top. The machine table is provided with a support frame for supporting the plates and making multiple plates correspond one-to-one with the grinding plate.

[0007] Furthermore, the support shaft includes a base and a core tube fixed on its top. A sleeve is fitted on the outside of the core tube, and a sliding groove is provided on the sleeve. An inflatable or contractible air bladder is provided between the core tube and the sleeve. The grinding plate is connected to the air bladder. When the air bladder inflates, the grinding plate is pushed outward from the sliding groove. When the air bladder contracts, the grinding plate slides into the sliding groove.

[0008] Furthermore, the top end of the core tube is connected to an external air supply device via an air pipe, and a first air hole communicating with the airbag is opened on the core tube for supplying air into the airbag to inflate the airbag.

[0009] Furthermore, the polishing plate is provided with a plurality of third air holes, each of which corresponds to a plurality of polishing areas. One end of each third air hole extends to the polishing area, and the other end extends to the airbag. The airbag is provided with a second air hole corresponding to the third air hole, so that the gas in the airbag can be blown to the polishing area in sequence through the second air hole and the third air hole.

[0010] Furthermore, the machine base is provided with a tray, and the support shaft and the motor are both connected to the tray. The machine base is provided with a lifting component, the telescopic end of which is connected to the tray. The telescopic end of the lifting component drives multiple support shafts to lift synchronously through the tray.

[0011] Furthermore, the lifting component includes a hydraulic cylinder, and the machine base is equipped with a hydraulic station for driving the extension and retraction of the hydraulic cylinder.

[0012] Furthermore, the support frame includes a fixed shaft, which is fixed to the table surface of the machine tool. The fixed shaft is provided with bushings corresponding to the number and position of the grinding plates. The bushings are rotatably connected to the fixed shaft. A support plate for supporting the plates is provided on one side of the fixed shaft.

[0013] Furthermore, the rotation of the bushing is damped.

[0014] Furthermore, the machine platform is equipped with a machine cover, and one side of the machine cover is provided with an operating port for personnel operation.

[0015] Furthermore, a dust suction pipe is provided on the top of the machine cover, one end of which extends into the machine cover, and the other end of which is connected to an external exhaust fan.

[0016] The beneficial effects of this utility model by adopting the above structure are as follows: 1. By setting a grinding plate with three grinding surfaces, the hole wall, upper hole opening and lower hole opening can be ground separately. Each grinding surface has multiple grinding areas with grit increasing from bottom to top. As the grinding plate descends, the multiple grinding areas of each grinding surface can contact the inner wall of the hole in the board from bottom to top. The grinding plate can perform a grinding process from coarse grinding to fine grinding and then to polishing on the board, achieving a variety of grinding effects.

[0017] 2. The grinding plate is driven to slide by the expansion and contraction of the air bladder. Therefore, when the air bladder is fully expanded, it can apply a thrust to the grinding plate, so that the grinding plate is elastically pressed against the inner wall of the opening of the board, so that the grinding plate can adapt to the inner diameter error of the opening of different boards.

[0018] 3. By setting a third air hole extending to the sanding surface on the sanding plate, when the sanding area contacts the board for sanding, the gas blown by the third air hole can clean up the sanding debris, blow the debris generated by sanding away from the sanding area, avoid the debris from affecting the sanding, and improve the sanding quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an insulating glass fiber board trimming device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the machine tool in an insulating glass fiber board trimming device according to an embodiment of the present invention; Figure 3 This is a schematic diagram showing the position distribution of the support frame in an insulating fiberglass board trimming device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the support shaft in an insulating glass fiber board trimming device according to an embodiment of the present invention; Figure 5 This is a schematic diagram showing the position distribution of the grinding plate in an insulating glass fiber board trimming device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the core tube structure in an insulating glass fiber board trimming device according to an embodiment of the present invention; Figure 7This is a schematic diagram of the structure of the grinding plate in an insulating glass fiber board trimming device according to an embodiment of the present invention; Figure 8 This is a schematic diagram showing the location of the third air hole in an insulating glass fiber board trimming device according to an embodiment of the present invention. Figure 9 This is a schematic diagram of the support frame in an insulating fiberglass board trimming device according to an embodiment of the present invention.

[0020] The components include: 1. Machine base; 11. Machine cover; 12. Dust suction pipe; 2. Support shaft; 201. Slide groove; 21. Base; 22. Core tube; 221. First air hole; 222. Air pipe; 23. Sleeve; 24. Airbag; 241. Second air hole; 3. Grinding plate; 31. First grinding surface; 32. Second grinding surface; 33. Third grinding surface; 301. Grinding area; 302. Third air hole; 4. Motor; 5. Support frame; 51. Fixed shaft; 52. Bushing; 53. Support plate; 6. Pallet; 7. Lifting components; 8. Hydraulic station.

[0021] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model proposes an insulating fiberglass board trimming device, including a machine base 1, a support shaft 2, a grinding plate 3, and a support frame 5.

[0025] Multiple support shafts 2 are provided, and the number and distribution of support shafts 2 are consistent with the openings of the plate. A motor 4 is provided at the bottom of the support shaft 2. The motor 4 is fixed to the bottom of the tray 6, and the output shaft of the motor 4 is connected to the support shaft 2. The motor 4 drives the support shaft 2 to rotate around its own axis. The support shaft 2 has a groove 201, and multiple grinding plates 3 are evenly distributed along the axis of the support shaft 2 within the groove 201. The grinding plates 3 are configured to slide within the groove 201 radially along the support shaft 2. During grinding, the grinding plates 3 slide outward (e.g., ...). Figure 4 and Figure 5 As shown, the grinding plate 3 contacts the inner wall of the opening in the board. As the support shaft 2 rotates, the grinding plate 3 rotates, thereby grinding the inner wall of the opening in the board.

[0026] It should be noted that there are two slides 201, which are symmetrically distributed on both sides of the support shaft 2. Each slide 201 has a corresponding grinding plate 3, so that the center of gravity of the support shaft 2 is on its own axis. When the support shaft 2 rotates around its own axis, it will not wobble and the rotation is more stable.

[0027] Combination Figure 2 As shown, the machine base 1 is equipped with a tray 6, and the support shaft 2 is connected to the tray 6. The machine base 1 is equipped with a lifting component 7. The telescopic end of the lifting component 7 is connected to the tray 6. The telescopic end of the lifting component 7 can drive multiple support shafts 2 to lift synchronously through the tray 6.

[0028] Combination Figure 7 As shown, the grinding plate 3 has a first grinding surface 31 on the side facing the outside of the support shaft 2. The first grinding surface 31 is parallel to the inner wall of the opening in the plate and can grind the hole wall. Above the first grinding surface 31, a second grinding surface 32 and a third grinding surface 33 are sequentially arranged, and the second grinding surface 32 and the third grinding surface 33 are set as mutually symmetrical inclined surfaces. When the lifting component 7 drives multiple support shafts 2 to descend via the tray 6, the grinding plate 3 descends synchronously, and the second grinding surface 32 and the third grinding surface 33 can sequentially contact the upper and lower openings of the holes in the plate and grind them (e.g., Figure 7 and Figure 8 (As shown), and will not come into contact with the upper and lower surfaces of the board, thus avoiding wear on the upper and lower surfaces of the board.

[0029] Thus, the motor 4 drives the support shaft 2 to rotate, which in turn drives the grinding plate 3 to perform grinding. During grinding, the first grinding surface 31 of the grinding plate 3 first contacts the hole wall for grinding. Then, the lifting component 7 is activated. The lifting component 7 drives multiple support shafts 2 to descend through the tray 6, which in turn drives the grinding plate 3 to descend synchronously, so that the second grinding surface 32 and the third grinding surface 33 contact the plate in sequence. The second grinding surface 32 can contact the upper opening of the hole in the plate and grind it. The third grinding surface 33 can contact the lower opening of the hole in the plate and grind it.

[0030] Furthermore, the first polishing surface 31, the second polishing surface 32, and the third polishing surface 33 are each provided with multiple polishing zones 301 with grit sizes increasing sequentially from bottom to top (e.g., Figure 7 As shown in the figure, during the grinding process, as the grinding plate 3 descends, the multiple grinding areas 301 of each grinding surface can contact the inner wall of the opening in the board in sequence from bottom to top. Since the grit number of the grinding area 301 increases sequentially from bottom to top, the grinding plate 3 can perform a grinding process from coarse grinding to fine grinding and then to polishing on the board, achieving a variety of grinding effects.

[0031] In a preferred embodiment, each grinding surface has three grinding zones 301. The bottom grinding zone 301 has the smallest grit number, which can coarsely grind the board and quickly remove burrs. The middle grinding zone 301 has a moderate grit number, which can coarsely grind the board to create grinding marks and make the surface smooth. The top grinding zone 301 has the largest grit number, which can polish the board.

[0032] Combination Figure 1 and Figure 2 As shown, the table of the machine tool 1 is provided with a support frame 5 for supporting the plates, which can support the plates one by one, so that the plates correspond one-to-one with the grinding plate 3, and allow the plates to move freely in the height direction, preventing the plates from moving downwards.

[0033] Thus, before grinding, the grinding plates 3 are all retracted within the grooves 201. During material feeding, the holes of the sheet metal are aligned with the support shaft 2, and the sheet metal is placed onto the support shaft 2 one by one. Multiple sheet metals are supported by the support bracket 5, ensuring that the sheet metals correspond one-to-one with the grinding plates 3 in the height direction. After material feeding is completed, the grinding plates 3 slide outwards, making the grinding plates 3 contact the inner wall of the openings in the sheet metal. Then, the motor 4 drives the support shaft 2 to rotate, and the grinding area 301 at the bottom of the first grinding surface 31 of the grinding plate 3 is first ground. The grinding plate 3 contacts the inner wall of the hole and is then polished. Then, the lifting component 7 is activated. The lifting component 7 drives multiple support shafts 2 to descend through the tray 6, which in turn drives the grinding plate 3 to descend synchronously. Multiple grinding areas 301 of the first grinding surface 31 grind the inner wall of the hole in sequence. Then, multiple grinding areas 301 of the second grinding surface 32 contact the upper opening of the hole in the plate and grind in sequence. Finally, multiple grinding areas 301 of the third grinding surface 33 contact the lower opening of the hole in the plate and grind in sequence.

[0034] Combination Figure 4 , Figure 5 and Figure 6 As shown, the support shaft 2 includes a base 21 and a core tube 22 fixed on its top. A sleeve 23 is sleeved on the outside of the core tube 22. A sliding groove 201 is provided on the sleeve 23. An air bladder 24 that can expand or contract is provided between the core tube 22 and the sleeve 23. The grinding plate 3 is connected to the air bladder 24. When the air bladder 24 is inflated, the grinding plate 3 can be pushed by the inflated air bladder 24 and slide outward of the sliding groove 201. When the air bladder 24 is deflated and elastically contracted, the grinding plate 3 is pulled by the air bladder 24 and slides into the sliding groove 201.

[0035] The output shaft of motor 4 is specifically connected to base 21, and the base 21 drives the support shaft 2 to rotate as a whole.

[0036] It should be noted that the inner diameter of the sleeve 23 is larger than the outer diameter of the core tube 22, so that a gap is formed between the core tube 22 and the sleeve 23 for the airbag 24 to expand. Before the airbag 24 expands to adhere to the inner wall of the sleeve 23, the grinding plate 3 can be pushed out by the airbag 24 to contact the inner wall of the opening of the material. Therefore, when the airbag 24 is fully expanded to adhere to the inner wall of the sleeve 23, it can apply a pushing force to the grinding plate 3, so that the grinding plate 3 is elastically pressed against the inner wall of the opening of the material, so that the grinding plate 3 can adapt to the inner diameter error of the opening of different materials.

[0037] In a specific embodiment, the top end of the core tube 22 is connected to an external air supply device through an air pipe 222. The core tube 22 has a first air hole 221 that communicates with the airbag 24. The external air supply device supplies gas into the core tube 22 through the air pipe 222. The gas in the core tube 22 is supplied to the airbag 24 through the first air hole 221, causing the airbag 24 to inflate.

[0038] Furthermore, an air release valve is connected to the trachea 222. By opening the air release valve, the gas inside the airbag 24 is released, causing the airbag 24 to contract.

[0039] It should be noted that since the core tube 22 is driven to rotate, the air tube 222 is connected to the center of the core tube 22 through a mechanical seal, so that the air tube 222 can still maintain its connection with the core tube 22 and supply air to its interior when the core tube 22 is rotating.

[0040] Combination Figure 7 and Figure 8As shown, the grinding plate 3 is provided with a plurality of third air holes 302, and the plurality of third air holes 302 correspond one-to-one with a plurality of grinding areas 301. One end of the third air hole 302 extends to the grinding area 301, and the other end of the third air hole 302 extends to the air bag 24. The air bag 24 is provided with a second air hole 241 corresponding to the third air hole 302, so that the gas in the air bag 24 can be blown to the grinding area 301 in sequence through the second air hole 241 and the third air hole 302.

[0041] Thus, during sanding, the external air supply device continuously supplies air into the airbag 24 to maintain its expansion. At the same time, the gas inside the airbag 24 is blown into the sanding area 301 through the second air hole 241 and the third air hole 302. When the sanding area 301 contacts the board for sanding, the gas blown by the third air hole 302 can clean up the sanding debris, blowing the debris away from the sanding area to avoid affecting the sanding and improve the sanding quality.

[0042] Combination Figure 1 and Figure 9 As shown, the support frame 5 includes a fixed shaft 51, which is fixed on the table surface of the machine base 1. The fixed shaft 51 is provided with bushings 52 corresponding to the number and position of the grinding plates 3. The bushings 52 are rotatably connected to the fixed shaft 51. A support plate 53 for supporting the plates is provided on one side of the fixed shaft 51.

[0043] Thus, when placing the board, first rotate the bushing 52 to rotate the support plate 53 to the side away from the support shaft 2, so as to avoid obstructing the placement of the lower board and allow the board to move smoothly downward. Then, place the board layer by layer from bottom to top. When placing each layer of board, rotate the support plate 53 used to support the board to face the support shaft 2. The support plate 53 supports the edge of the board, preventing the board from moving downward. When the grinding plate 3 slides downward, it prevents the board from being dragged downward and keeps the board stationary.

[0044] Furthermore, the rotation of the bushing 52 is damped, so that the bushing 52 will not rotate on its own when no one is rotating it, thus avoiding the vibration during grinding that causes the bushing 52 to rotate, thereby fixing the position of the support plate 53 and stably supporting the plate.

[0045] Combination Figure 1 As shown, the table surface of the machine 1 is equipped with a machine cover 11. One side of the machine cover 11 is provided with an operating port for personnel to operate the equipment. The top of the machine cover 11 is provided with a dust suction pipe 12. One end of the dust suction pipe 12 extends into the machine cover 11, and the other end of the dust suction pipe 12 is connected to an external exhaust fan. The waste generated by grinding is blown out by the gas. At the same time, the external exhaust fan uses the dust suction pipe 12 to draw the air out of the machine cover 11 to prevent dust from overflowing.

[0046] Combination Figure 2 As shown, the lifting component 7 includes a hydraulic cylinder, and the machine base 1 is equipped with a hydraulic station 8. The hydraulic cylinder and the hydraulic station 8 are connected by a pipeline, and the control valve on the hydraulic station 8 can control the extension and retraction of the extension end of the hydraulic cylinder.

[0047] The working principle of this utility model is as follows: Before grinding, the grinding plates 3 are all retracted into the slide groove 201. During material feeding, the holes of the plate are aligned with the support shaft 2, and the plates are placed on the support shaft 2 one by one. Multiple plates are supported by the support bracket 5, and the plates are aligned with the grinding plates 3 one by one in the height direction. After the material feeding is completed, the external air supply device supplies gas into the core tube 22 through the air pipe 222. The gas in the core tube 22 is supplied to the air bladder 24 through the first air hole 221, causing the air bladder 24 to inflate. The grinding plates 3 are pushed by the inflated air bladder 24 and slide outward from the slide groove 201, so that the grinding plates 3 are aligned with the inner opening of the plate. The first grinding surface 31 of the grinding plate 3 first contacts the inner wall of the hole and then the motor 4 drives the support shaft 2 to rotate. The grinding area 301 at the bottom of the first grinding surface 31 of the grinding plate 3 first contacts the inner wall of the hole and grinds it. Then the lifting component 7 is activated. The lifting component 7 drives multiple support shafts 2 to descend through the tray 6, which drives the grinding plate 3 to descend synchronously. The multiple grinding areas 301 of the first grinding surface 31 grind the inner wall of the hole in sequence. Then, the multiple grinding areas 301 of the second grinding surface 32 contact the upper opening of the hole in the plate and grind it in sequence. Finally, the multiple grinding areas 301 of the third grinding surface 33 contact the lower opening of the hole in the plate and grind it in sequence. During sanding, the external air supply device continuously supplies air into the airbag 24 to maintain its expansion. At the same time, the gas inside the airbag 24 is blown into the sanding area 301 through the second air hole 241 and the third air hole 302. When the sanding area 301 contacts the board for sanding, the gas blown by the third air hole 302 can clean up the sanding debris, blowing the debris away from the sanding area to avoid affecting the sanding and improve the sanding quality.

[0048] In summary, by setting a grinding plate 3 with three grinding surfaces, the hole wall, upper hole opening and lower hole opening can be ground separately. On each grinding surface, multiple grinding areas 301 with grit increasing from bottom to top are set. As the grinding plate 3 descends, the multiple grinding areas 301 on each grinding surface can contact the inner wall of the hole in the board from bottom to top. The grinding plate 3 can perform a grinding process from coarse grinding to fine grinding and then to polishing on the board, achieving a variety of grinding effects.

[0049] The expansion and contraction of the airbag 24 drives the grinding plate 3 to slide. Therefore, when the airbag 24 is fully expanded, it can apply a thrust to the grinding plate 3, so that the grinding plate 3 is elastically pressed against the inner wall of the opening of the board, so that the grinding plate 3 can adapt to the inner diameter error of the opening of different boards.

[0050] By providing a third air hole 302 extending to the grinding surface on the grinding plate 3, when the grinding area 301 contacts the plate for grinding, the gas blown by the third air hole 302 can clean up the grinding debris, blow the debris generated by grinding away from the grinding area, avoid the debris from affecting the grinding, and improve the grinding quality.

[0051] It should be noted that, in this document, relational 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 such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for trimming insulating fiberglass boards, characterized in that, Includes a machine base (1), on which a support shaft (2) is provided, which is consistent with the number and position of the openings in the plate. The support shaft (2) is configured to be able to move up and down along its own axis. A motor (4) is provided at the bottom of the support shaft (2) to drive the support shaft (2) to rotate. The support shaft (2) is provided with a groove (201), and a plurality of grinding plates (3) are provided in the groove (201) evenly distributed along the axis of the support shaft (2). The grinding plates (3) are configured to slide in the groove (201) along the radial direction of the support shaft (2). The grinding plate (3) has a first grinding surface (31) on the side facing the outside of the support shaft (2) for grinding the hole wall. A second grinding surface (32) and a third grinding surface (33) are arranged above the first grinding surface (31) in sequence. The second grinding surface (32) and the third grinding surface (33) are set as mutually symmetrical inclined surfaces for grinding the hole opening. The first grinding surface (31), the second grinding surface (32) and the third grinding surface (33) are each provided with a plurality of grinding areas (301) with the mesh size increasing sequentially from bottom to top. The table surface of the machine tool (1) is provided with a support frame (5) for supporting the plates and making multiple plates correspond one by one with the grinding plate (3).

2. The insulating fiberglass board trimming device according to claim 1, characterized in that: The support shaft (2) includes a base (21) and a core tube (22) fixed on its top. A sleeve (23) is sleeved on the outside of the core tube (22). A groove (201) is provided on the sleeve (23). An air bladder (24) that can expand or contract is provided between the core tube (22) and the sleeve (23). The grinding plate (3) is connected to the air bladder (24). When the air bladder (24) expands, the grinding plate (3) is pushed outward of the groove (201). When the air bladder (24) contracts, the grinding plate (3) slides into the groove (201).

3. The insulating glass fiberboard trimming device according to claim 2, characterized in that: The top end of the core tube (22) is connected to an external air supply device through an air tube (222). The core tube (22) has a first air hole (221) that communicates with the airbag (24) to supply air into the airbag (24) to inflate the airbag (24).

4. The insulating glass fiberboard trimming device according to claim 3, characterized in that: The grinding plate (3) is provided with a plurality of third air holes (302), and the plurality of third air holes (302) correspond one-to-one with the plurality of grinding areas (301). One end of the third air hole (302) extends to the grinding area (301), and the other end of the third air hole (302) extends to the air bag (24). The air bag (24) is provided with a second air hole (241) corresponding to the third air hole (302), so that the gas in the air bag (24) can be blown to the grinding area (301) in sequence through the second air hole (241) and the third air hole (302).

5. The insulating glass fiberboard trimming device according to claim 1, characterized in that: The machine base (1) is provided with a tray (6), the support shaft (2) and the motor (4) are both connected to the tray (6), the machine base (1) is provided with a lifting component (7), the telescopic end of the lifting component (7) is connected to the tray (6), and the telescopic end of the lifting component (7) drives multiple support shafts (2) to lift synchronously through the tray (6).

6. The insulating fiberglass board trimming device according to claim 5, characterized in that: The lifting component (7) includes a hydraulic cylinder, and the machine base (1) is provided with a hydraulic station (8) for driving the extension and retraction of the hydraulic cylinder.

7. The insulating fiberglass board trimming device according to claim 1, characterized in that: The support frame (5) includes a fixed shaft (51), which is fixed on the table surface of the machine tool (1). The fixed shaft (51) is provided with bushings (52) corresponding to the number and position of the grinding plates (3). The bushings (52) are rotatably connected to the fixed shaft (51). A support plate (53) for supporting the plates is provided on one side of the fixed shaft (51).

8. The insulating fiberglass board trimming device according to claim 7, characterized in that: The rotation of the bushing (52) is damped.

9. The insulating glass fiberboard trimming device according to claim 1, characterized in that: The machine platform (1) has a machine cover (11) on its surface, and one side of the machine cover (11) has an operating port for personnel operation.

10. The insulating glass fiberboard trimming device according to claim 9, characterized in that: The top of the hood (11) is provided with a dust suction pipe (12), one end of which extends into the hood (11) and the other end of which is connected to an external exhaust fan.

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