Laser cutting machine for glass substrate and working method of laser cutting machine
By designing a collection cover, connecting tube and adjustment sealing device in a glass substrate laser cutting machine, the problem of debris adhesion after cutting is solved, and the stability of the negative pressure device and the efficiency of dust collection are improved.
Patent Information
- Application Number
- CN202510263862.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2025-04-25
AI Technical Summary
During the laser cutting process of the glass substrate, the cut debris easily adhere to the bottom wall of the cutting table, affecting the collection and cleaning of dust and harmful gases, resulting in the normal operation of the negative pressure collection device being affected.
A laser cutting machine is designed, including a collection cover, a connecting tube and an adjustment sealing device. When the negative pressure device is working, the sealing plate is flipped upwards, pushing the connecting pipe to move in the direction of the collection cover, and improving the stability of the fixation between the negative pressure device and the collection cover. When the negative pressure device stops working, the sealing disc is reset and flips, the adjustment strip is inserted into the adjustment groove, and the collection cover is vibrating to avoid debris adhesion.
Through this design, the stability of fixing between the negative pressure device and the collection cover is improved, and debris generated during the cutting process are effectively prevented from adhering to the bottom wall of the collection cover, ensuring the normal collection and cleaning of dust and harmful gases.
Smart Images
Figure CN119874175A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the field of conveying technology, and specifically relates to conveying objects by fluid flow, and more particularly to a laser cutting machine for a glass substrate and a working method thereof. Background Art
[0002] Glass substrate is a thin glass sheet with an extremely flat surface, and is one of the key basic materials for the flat panel display industry. Glass dust and some toxic and harmful gases will be generated during the cutting process.
[0003] In the related art, in order to prevent dust and harmful gases from spreading around, a negative pressure collection device is usually set at the bottom of the laser cutting table; at the same time, in order to further reduce dust emissions, an electrostatic precipitator is usually set on the bottom wall of the laser cutting table.
[0004] Since the debris generated during the cutting process has a certain high temperature, it will accumulate on the bottom wall of the laser cutting table during the falling process, which is not conducive to centralized collection and cleaning. Long-term accumulation will also affect the normal operation of the negative pressure collection device.
[0005] Therefore, how to prevent the debris from sticking and accumulating after cutting is a technical problem that needs to be solved urgently in this field.
[0006] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology conceived by the present application, and therefore, the above description is not considered to constitute information of related technology. Summary of the invention
[0007] The embodiments of the present disclosure at least provide a laser cutting machine for a glass substrate and a working method thereof.
[0008] In a first aspect, an embodiment of the present disclosure provides a laser cutting machine for a glass substrate, comprising: A collecting hood, which is arranged on the bottom wall of the cutting table; A connecting pipe, which is sleeved between the collecting pipe of the collecting hood and the negative pressure device; An adjustable sealing device, which is hinged on the inner wall of the connecting pipe and linked with the collecting pipe; When the regulating sealing device is turned upward to open the collecting pipe, the regulating sealing device pushes the connecting pipe to move toward the collecting cover; When the regulating sealing device is turned downward to close the collecting tube, the regulating sealing device abuts against the collecting tube to vibrate the bottom wall of the collecting cover.
[0009] In an optional embodiment, the regulating sealing device comprises: a sealing disc, which is hinged to the inner wall of the connecting pipe and is adapted to the collecting pipe; An adjusting strip is arranged along the circumference of the side wall of the sealing disk, and a plurality of protrusions are respectively arranged on the two side walls; The end wall of the connecting pipe is provided with an adjustment groove adapted to the adjustment strip in the circumferential direction; When the sealing disk closes the connecting pipe, the adjusting strip is inserted into the adjusting groove, and the protrusion rubs against the inner wall of the adjusting groove to vibrate the collecting cover.
[0010] In an optional embodiment, a sealing strip is circumferentially provided on the side wall of the sealing disk, and a gap is provided between the sealing strip and the adjustment strip; The end wall of the connecting pipe is provided with a positioning groove adapted to the sealing strip in the circumferential direction; When the sealing disk is turned downward, the sealing strip is suitable for being inserted into the positioning groove to seal the connecting pipe.
[0011] In an optional embodiment, an air bag is provided in the positioning groove, and the air bag is suitable for abutting against the sealing strip; A partition is provided between the positioning groove and the adjusting groove; When the sealing strip is inserted into the positioning groove, the airbag is squeezed to deform, and during the deformation process, the airbag squeezes the partition plate to deform inwardly.
[0012] In an optional implementation, the slot width of the positioning slot is greater than the thickness of the sealing strip.
[0013] In an optional embodiment, a turning shaft is provided on the upper side wall of the sealing disk, and an extrusion block is provided on the outer wall of the turning shaft; Wherein, when the sealing disk is turned upward, the extrusion block is suitable for turning toward the collecting cover.
[0014] In an optional embodiment, the inner wall of the connecting pipe is provided with a linkage block corresponding to the extrusion block, and the linkage block faces the flip axis; When the sealing disk flips upward, the extrusion block abuts against the linkage block to push the connecting pipe to move toward the collecting cover.
[0015] In an optional embodiment, the cutting table has a collecting cover disposed at the bottom thereof, and a collecting pipe is disposed on the side wall of the collecting cover; A connecting pipe, which is sleeved on the outer wall of the collecting pipe and has a negative pressure device at the outer end; a sealing disc hinged in the connecting pipe and adapted to seal the connecting pipe; An adjusting strip is arranged on the side wall of the sealing disk, and a plurality of protrusions are arranged on both side walls; When the sealing disk closes the connecting pipe, the adjusting strip is inserted into the adjusting groove of the end wall of the connecting pipe to vibrate the collecting cover.
[0016] In an optional embodiment, a sealing strip is circumferentially provided on the side wall of the sealing disk, and a gap is provided between the sealing strip and the adjustment strip; The end wall of the connecting pipe is provided with a positioning groove adapted to the sealing strip in the circumferential direction; When the sealing disk is turned downward, the sealing strip is suitable for being inserted into the positioning groove to seal the connecting pipe.
[0017] In an optional embodiment, an air bag is provided in the positioning groove, and the air bag is suitable for abutting against the sealing strip; A partition is provided between the positioning groove and the adjusting groove; When the sealing strip is inserted into the positioning groove, the airbag is squeezed to deform, and during the deformation process, the airbag squeezes the partition plate to deform inwardly.
[0018] In a second aspect, the present disclosure also provides a working method of a laser cutting machine, the working method comprising: When the negative pressure device is working, the negative pressure sucks the sealing disk so that the sealing disk turns upward; When the negative pressure device stops, the sealing disk flips downward under the action of gravity, the adjusting strip is gradually inserted into the adjusting groove, and the protrusions on the side walls of the adjusting strip rub against the inner wall of the adjusting groove to vibrate the collecting cover.
[0019] The beneficial effect of the present invention is that the present invention provides a laser cutting machine for glass substrates and a working method thereof, through the cooperation of the connecting tube, the regulating sealing device and the negative pressure device, when the negative pressure device is working, the negative pressure adsorption sealing disk flips upward, and the sealing disk can push the connecting tube to move in the direction of the collecting cover when flipping upward, thereby improving the stability of the fixation between the negative pressure device and the collecting cover. When the negative pressure device stops working, the sealing disk resets and flips under the action of gravity, and the collecting cover vibrates during the process of the regulating bar being inserted into the regulating groove, thereby preventing the debris generated during the cutting process from adhering to the bottom wall of the collecting cover.
[0020] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.
[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 A three-dimensional diagram of a laser cutting machine for a glass substrate provided in an embodiment of the present disclosure; Figure 2 A three-dimensional diagram of a collection hood and a negative pressure device provided in an embodiment of the present disclosure; Figure 3 A cutaway perspective view of a collection hood and an adjustable sealing device provided for an embodiment of the present disclosure; Figure 4 A perspective view of an adjustable sealing device and a collecting tube provided for an embodiment of the present disclosure; Figure 5 A schematic diagram of the sealing disk in the flipped open state provided in an embodiment of the present disclosure.
[0024] In the figure: 1. Collection cover; 10. Collection tube; 2. Connecting pipe; 21. Adjusting groove; 22. Positioning groove; 23. Partition plate; 24. Linkage block; 3. Adjusting sealing device; 31. Sealing disk; 32. Adjusting strip; 33. Sealing strip; 34. Air bag; 35. Turning shaft; 36. Extrusion block; 4. Negative pressure device; 5. Cutting table. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0026] In this article, when it is mentioned that the first component is located on the second component, this may mean that the first component may be directly formed on the second component, or the third component may be interposed between the first component and the second component. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the component may be exaggerated or reduced.
[0027] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." modify the entire list of elements when following a list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0028] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limited. As used herein, the singular articles "one", "an" and "the" may also be intended to include plural forms, unless it is clearly indicated above that this is not the case. The terms "comprise", "include" and "have" are inclusive, and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the specific order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.
[0029] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.
[0030] Research has found that in related technologies, in order to prevent dust and harmful gases from spreading around, a negative pressure collection device is often set at the bottom of the laser cutting table; at the same time, in order to further reduce dust emissions, an electrostatic precipitator is often set on the bottom wall of the laser cutting table.
[0031] Since the debris from the cutting process has a certain temperature, it will accumulate on the bottom wall of the laser cutting table when it falls, which is not conducive to centralized collection and cleaning. Long-term accumulation will also affect the normal operation of the negative pressure collection device. The traditional approach is to use vibration to prevent the debris from sticking during the cutting process. The additional installation of a vibration device not only has high equipment investment costs, but also frequent vibrations will cause the fixing stability between the negative pressure device and the collection cover to deteriorate. If the collection cover is only vibrated during the closing process of the sealing disk, long-term use will cause the sealing disk to deform, resulting in a poor vibration effect.
[0032] Therefore, how to prevent the debris from sticking and accumulating after cutting is a technical problem that needs to be solved urgently in this field.
[0033] The defects in the above solutions and the reasons for their occurrence are the results obtained by the inventor after practice and careful research. Therefore, the process of discovering the above problems and the solutions proposed by the present invention in this article for the above problems should be the contributions made by the inventor to the present invention during the disclosure process.
[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0035] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0036] like Figures 1 to 5 As shown, at least one embodiment provides a laser cutting machine for glass substrates, including: a collecting hood 1, which is arranged on the bottom wall of a cutting table 5; the cutting table 5 is a supporting bottom table of the laser cutting machine. A connecting pipe 2, which is sleeved between the collecting pipe 10 of the collecting hood 1 and the negative pressure device 4; the connecting pipe 2 connects and fixes the negative pressure device 4 and the collecting hood 1. When the negative pressure device 4 is working, it is suitable for sucking the debris and smoke generated during the operation of the laser cutting machine under negative pressure for centralized collection. An adjusting sealing device 3, which is hinged on the inner wall of the connecting pipe 2 and linked with the collecting pipe 10; the adjusting sealing device 3 is suitable for sealing the connecting pipe 2. Among them, when the negative pressure device 4 is working, the adjusting sealing device 3 is turned up to open the collecting pipe 10 under the action of negative pressure, and the adjusting sealing device 3 pushes the connecting pipe 2 to move toward the collecting hood 1; when the negative pressure device 4 stops working, the adjusting sealing device 3 is turned down to close the collecting pipe 10 under the action of its own gravity, and the adjusting sealing device 3 abuts against the collecting pipe 10 to vibrate the bottom wall of the collecting hood 1. Through the cooperation of the connecting tube 2, the regulating sealing device 3 and the negative pressure device 4, when the negative pressure device 4 is working, the negative pressure adsorption sealing disk 31 flips upward, and the sealing disk 31 can push the connecting tube 2 to move in the direction of the collecting cover 1 when flipping upward, thereby improving the stability of the fixation between the negative pressure device 4 and the collecting cover 1. When the negative pressure device 4 stops working, the sealing disk 31 resets and flips under the action of gravity, and the collecting cover 1 vibrates during the process of the regulating strip 32 being inserted into the regulating groove 21, thereby preventing the debris generated during the cutting process from adhering to the bottom wall of the collecting cover 1.
[0037] Reference Figure 3, the regulating sealing device 3 comprises: a sealing disc 31, which is hinged on the inner wall of the connecting tube 2 and is adapted to the collecting tube 10; the outer diameter of the sealing disc 31 is not greater than the outer diameter of the connecting tube 2. When the negative pressure device 4 is not working, the side wall of the sealing disc 31 abuts against the end wall of the collecting tube 10. An adjusting strip 32 is arranged circumferentially along the side wall of the sealing disc 31, and a plurality of protrusions are respectively arranged on the two side walls; the adjusting strip 32 is in an arc shape. The two side walls of the regulating groove 21 are respectively provided with corrugated protrusions adapted to the protrusions, and during the process of inserting the regulating strip 32 into the regulating groove 21, the protrusions rub against the corrugated protrusions to achieve the effect of vibrating the collecting cover 1. The end wall of the connecting tube 2 is circumferentially provided with an adjusting groove 21 adapted to the adjusting strip 32; wherein, when the sealing disc 31 closes the connecting tube 2, the adjusting strip 32 is inserted into the adjusting groove 21, and the protrusions rub against the inner wall of the adjusting groove 21 to vibrate the collecting cover 1.
[0038] In the related art, after the adjustment strip 32 is inserted into the adjustment groove 21 multiple times, the side walls of the adjustment groove 21 will deform due to friction, and eventually the vibration effect of the adjustment strip 32 on the collection cover 1 will be reduced after the adjustment strip 32 is inserted into the adjustment groove 21.
[0039] Reference Figure 4 In order to solve the problem of reduced vibration effect, in this embodiment, an airbag 34 is arranged in the positioning groove 22, and the airbag 34 is suitable for abutting against the sealing strip 33; a partition 23 is arranged between the positioning groove 22 and the adjustment groove 21; the inner side of the partition 23 faces the adjustment groove 21, and the outer side wall of the partition 23 faces the positioning groove 22. Among them, when the sealing strip 33 is inserted into the positioning groove 22, the airbag 34 is squeezed and deformed, and the airbag 34 squeezes the partition 23 inwardly during the deformation process. In the process of the adjustment strip 32 and the sealing strip 33 being inserted into the adjustment groove 21 and the positioning groove 22 respectively, since the length of the sealing strip 33 is greater than that of the adjustment strip 32, the airbag 34 is squeezed and deformed in the process of the sealing strip 33 being inserted into the positioning groove 22, and the airbag 34 is suitable for squeezing the partition 23 to deform in the direction of the adjustment groove 21 to reduce the width of the adjustment groove 21; at this time, the adjustment strip 32 is inserted into the adjustment groove 21, which ensures that the vibration effect of the adjustment strip 32 on the collection cover 1 will not be reduced when the adjustment strip 32 is inserted into the adjustment groove 21. Continue to refer Figure 3 The sealing disc 31 has a sealing strip 33 disposed circumferentially on its side wall, and a gap is provided between the sealing strip 33 and the adjusting strip 32; the slot width of the positioning groove 22 is greater than the thickness of the sealing strip 33. When the sealing disc 31 is turned over with the turning axis 35 as the axis, the sealing disc 31 can be inserted into the positioning groove 22. The end wall of the connecting pipe 2 has a positioning groove 22 adapted to the sealing strip 33 disposed circumferentially; wherein, when the sealing disc 31 is turned downward, the sealing strip 33 is suitable for being inserted into the positioning groove 22 to seal the connecting pipe 2.
[0040] Reference Figure 4In order to improve the stability of the connection between the connecting pipe 2 and the collecting pipe 10, a turning shaft 35 is provided on the upper side wall of the sealing disc 31, and a pressing block 36 is provided on the outer wall of the turning shaft 35; wherein, when the sealing disc 31 turns upward, the pressing block 36 is adapted to turn toward the collecting cover 1. A linkage block 24 corresponding to the pressing block 36 is provided on the inner wall of the connecting pipe 2, and the linkage block 24 faces the turning shaft 35; wherein, when the sealing disc 31 turns upward, the pressing block 36 abuts against the linkage block 24 to push the connecting pipe 2 to move toward the collecting cover 1.
[0041] Reference Figure 1 At least one embodiment provides a laser cutting machine for a glass substrate, comprising: a cutting table 5, a collecting hood 1 is provided at the bottom thereof, and a collecting tube 10 is provided on the side wall of the collecting hood 1; a connecting tube 2, which is sleeved on the outer wall of the collecting tube 10, and a negative pressure device 4 is provided on the outer end; a sealing disk 31, which is hinged in the connecting tube 2 and is suitable for sealing the connecting tube 2; an adjusting strip 32, which is provided on the side wall of the sealing disk 31, and a plurality of protrusions are provided on both side walls; wherein, when the sealing disk 31 closes the connecting tube 2, the adjusting strip 32 is inserted into the adjusting groove 21 of the end wall of the connecting tube 2 to vibrate the collecting hood 1.
[0042] At least one embodiment provides a working method of a laser cutting machine, the working method comprising: When the negative pressure device 4 is working, the negative pressure sucks the sealing disk 31 to make the sealing disk 31 flip upward; when the negative pressure device 4 stops, the sealing disk 31 flips downward under the action of gravity, and the adjustment strip 32 is gradually inserted into the adjustment groove 21, and the protrusions on the side walls of the adjustment strip 32 rub against the inner wall of the adjustment groove 21 to vibrate the collection cover 1.
[0043] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0044] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in this document unless explicitly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.
[0045] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A laser cutting machine for a glass substrate, characterized in that: include: A collecting hood (1) arranged on the bottom wall of the cutting table (5); A connecting pipe (2) which is sleeved between the collecting pipe (10) of the collecting cover (1) and the negative pressure device (4); An adjustable sealing device (3) which is hinged to the inner wall of the connecting pipe (2) and is linked to the collecting pipe (10); When the regulating sealing device (3) is turned upward to open the collecting tube (10), the regulating sealing device (3) pushes the connecting tube (2) to move in the direction of the collecting cover (1); When the regulating sealing device (3) is turned downward to close the collecting tube (10), the regulating sealing device (3) abuts against the collecting tube (10) to vibrate the bottom wall of the collecting cover (1).
2. The laser cutting machine for glass substrate according to claim 1, wherein: The regulating sealing device (3) comprises: a sealing disc (31) which is hinged on the inner wall of the connecting pipe (2) and is adapted to fit the collecting pipe (10); An adjustment strip (32) is arranged along the circumference of the side wall of the sealing disk (31), and a plurality of protrusions are respectively arranged on the two side walls; An adjustment groove (21) adapted to the adjustment strip (32) is provided in the circumferential direction of the end wall of the connecting pipe (2); When the sealing disk (31) closes the connecting pipe (2), the adjusting strip (32) is inserted into the adjusting groove (21), and the protrusion rubs against the inner wall of the adjusting groove (21) to vibrate the collecting cover (1).
3. The laser cutting machine for glass substrate according to claim 2, wherein: A sealing strip (33) is circumferentially arranged on the side wall of the sealing disk (31), and a gap is provided between the sealing strip (33) and the adjustment strip (32); The end wall of the connecting pipe (2) is provided with a positioning groove (22) adapted to the sealing strip (33) in the circumferential direction; When the sealing disk (31) is turned downward, the sealing strip (33) is adapted to be inserted into the positioning groove (22) to seal the connecting pipe (2).
4. The laser cutting machine for glass substrate according to claim 3, characterized in that: An air bag (34) is disposed in the positioning groove (22), and the air bag (34) is suitable for abutting against the sealing strip (33); A partition plate (23) is provided between the positioning groove (22) and the adjustment groove (21); When the sealing strip (33) is inserted into the positioning groove (22), it squeezes the airbag (34) to deform, and during the deformation process, the airbag (34) squeezes the partition plate (23) to deform inwards.
5. The laser cutting machine for glass substrate according to claim 3, characterized in that: The slot width of the positioning slot (22) is greater than the thickness of the sealing strip (33).
6. The laser cutting machine for glass substrate according to claim 2, wherein: The upper side wall of the sealing disk (31) is provided with a turning shaft (35), and the outer wall of the turning shaft (35) is provided with an extrusion block (36); Wherein, when the sealing disk (31) turns upward, the extrusion block (36) is suitable for turning in the direction of the collection cover (1).
7. The laser cutting machine for glass substrate according to claim 6, characterized in that: The inner wall of the connecting tube (2) is provided with a linkage block (24) corresponding to the extrusion block (36), and the linkage block (24) faces the turning axis (35); When the sealing disk (31) turns upward, the extrusion block (36) abuts against the linkage block (24) to push the connecting pipe (2) to move in the direction of the collecting cover (1).
8. A laser cutting machine for a glass substrate, characterized in that: include: A cutting table (5) having a collecting cover (1) disposed at its bottom, and a collecting pipe (10) disposed on a side wall of the collecting cover (1); A connecting pipe (2) which is sleeved on the outer wall of the collecting pipe (10) and has a negative pressure device (4) disposed at the outer end; A sealing disc (31) which is hinged in the connecting pipe (2) and is suitable for sealing the connecting pipe (2); An adjustment strip (32) is arranged on a side wall of the sealing disk (31), and a plurality of protrusions are respectively arranged on the side walls; When the sealing disk (31) closes the connecting pipe (2), the adjusting strip (32) is inserted into the adjusting groove (21) on the end wall of the connecting pipe (2) to vibrate the collecting cover (1).
9. The laser cutting machine for glass substrate according to claim 8, wherein: A sealing strip (33) is circumferentially arranged on the side wall of the sealing disk (31), and a gap is provided between the sealing strip (33) and the adjustment strip (32); The end wall of the connecting pipe (2) is provided with a positioning groove (22) adapted to the sealing strip (33) in the circumferential direction; When the sealing disk (31) is turned downward, the sealing strip (33) is adapted to be inserted into the positioning groove (22) to seal the connecting pipe (2).
10. The laser cutting machine for glass substrate according to claim 9, wherein: An air bag (34) is disposed in the positioning groove (22), and the air bag (34) is suitable for abutting against the sealing strip (33); A partition plate (23) is provided between the positioning groove (22) and the adjustment groove (21); When the sealing strip (33) is inserted into the positioning groove (22), it squeezes the airbag (34) to deform, and during the deformation process, the airbag (34) squeezes the partition plate (23) to deform inwards.
11. A working method of a laser cutting machine, characterized in that: Using the laser cutting machine for glass substrates according to any one of claims 1 to 10, the working method comprises: When the negative pressure device (4) is in operation, the negative pressure draws the sealing disk (31) so that the sealing disk (31) turns upward; When the negative pressure device (4) stops, the sealing disk (31) turns downward under the action of gravity, the adjustment strip (32) gradually inserts into the adjustment groove (21), and the protrusions on the side walls of the adjustment strip (32) rub against the inner wall of the adjustment groove (21) to vibrate the collection cover (1).