Punching device and glass production line

Abstract

The utility model belongs to the field of glass production equipment, and particularly relates to a punching device and a glass production line. The punching device is used for cutting a target workpiece from a sheet and comprises a bearing structure used for supporting the sheet, a punching structure arranged above the bearing structure in a sliding mode in the vertical direction and a driving structure used for driving the punching structure to ascend and descend. The punching structure comprises a connecting piece connected with the output end of the driving structure and a cutting knife connected to the side, facing the bearing structure, of the connecting piece, the cutting knife surrounds to form an annular structure in a preset shape, and the driving structure drives the connecting piece to be in press fit with the bearing structure so that the cutting knife can punch a target workpiece in a preset shape from the sheet. The surface, facing the bearing structure, of the connecting piece is provided with an air blowing opening communicating with the space defined by the cutting knife in a surrounding mode, and the air blowing opening is used for blowing airflow into the space defined by the cutting knife in a surrounding mode. According to the utility model, the cutting efficiency can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of glass production equipment, and particularly relates to punching and cutting devices and glass production lines. Background Technology

[0002] Laminated glass is a composite glass product made by bonding one or more layers of organic polymer interlayer between two or more panes of glass. Through a special high-temperature pre-pressing (or vacuuming) and high-temperature, high-pressure process, the glass and interlayer are permanently bonded together. Laminated glass may shatter under the impact of a heavy ball, but the entire pane retains its interlayer integrity; fragments and sharp pieces remain adhered to the interlayer and do not scatter. It is commonly used in automobiles and other transportation vehicles.

[0003] In laminated glass, the glass substrates are usually bonded together by an adhesive film. Before bonding, the adhesive film needs to be cut according to the size of the laminated glass. The existing adhesive film cutting is usually done manually to cut the required pieces from the sheet. However, manual cutting requires multiple cuts to separate the pieces from the sheet, which is inefficient. Utility Model Content

[0004] The purpose of this application is to provide a punching device that aims to solve the problem of how to improve cutting efficiency.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, a punching device is provided for cutting a target workpiece from a sheet. The punching device includes a support structure for supporting the sheet, a punching structure slidably disposed above the support structure in a vertical direction, and a drive structure for driving the punching structure to move up and down. The punching structure includes a connector connected to the output end of the drive structure and a cutting blade connected to the connector on the side facing the support structure. The cutting blade is arranged in a ring-shaped structure with a preset shape. The drive structure drives the connector to press against the support structure so that the cutting blade punches the target workpiece of the preset shape from the sheet. The surface of the connector facing the support structure is provided with an air outlet communicating with a space defined by the cutting blade. The air outlet is used to blow airflow into the space defined by the cutting blade.

[0007] In some embodiments, the punching device further includes an air source for supplying air to the air inlet, the die template having a gas channel communicating with the air source, and the air inlet communicating with the gas channel.

[0008] In some embodiments, the punching device further includes an air connector connecting the gas channel and the gas source, the air connector being located at one end of the gas channel and the air outlet being located at the other end of the gas channel.

[0009] In some embodiments, the punching device further includes a support base for supporting the drive structure, the connector includes a connecting plate connected to the output end of the drive structure and a blade template connected to the connecting plate on the side facing the support structure, and the air inlet and the cutting blade are disposed on the blade template.

[0010] In some embodiments, the support base includes a support plate located above and spaced apart from the load-bearing structure, and an upright plate connecting the support plate and the load-bearing structure. The drive structure is connected to the support plate, and a guide structure is connected between the connecting plate and the support plate. The guide structure is used to guide the connecting plate to move up and down in the vertical direction.

[0011] In some embodiments, the guide structure includes a guide rod connected to the side of the connecting plate opposite to the bearing structure, the guide rod extending in a vertical direction, and the support plate having a guide hole adapted to the guide rod, the guide rod being movably inserted through the guide hole.

[0012] In some embodiments, the drive structure includes a cylinder connected to the support plate and a piston rod that moves vertically through the cylinder. The piston rod is connected to the connecting plate and is connected to an adjustment structure for adjusting the position of the piston rod relative to the cylinder in the vertical direction.

[0013] In some embodiments, the supporting structure has a supporting surface for supporting the sheet, the supporting surface is provided with a limiting block for limiting the sheet, the limiting block is used to abut against the side of the sheet, a plurality of limiting blocks are arranged at intervals, and the plurality of limiting blocks together form a placement area for the sheet.

[0014] In some embodiments, the limiting block is detachably connected to the bearing surface, and the position of the limiting block on the bearing surface is adjustable to adjust the size of the placement area.

[0015] Secondly, a glass production line is provided, which includes the punching device described above.

[0016] The beneficial effects of this application are as follows: When using the punching device of this application, the sheet is first placed on the supporting structure, and then the connecting part is driven by the driving structure to press with the supporting structure so that the cutting blade cuts the sheet. Since the cutting blade is a ring structure, the target workpiece can be cut from the sheet in one punching stroke, thereby effectively improving the cutting efficiency. Furthermore, by setting an air blowing port, airflow can be blown in the space defined by the cutting blade after each punching, so that the waste material or target workpiece formed by cutting is separated from the cutting blade. Therefore, there is no need to stop the machine to clean up the waste material or target workpiece, saving time and further improving the cutting efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the punching device provided in the embodiments of this application;

[0019] Figure 2 This is a partial structural schematic diagram of the punching device provided in the embodiments of this application;

[0020] Figure 3 This is a schematic diagram of the driving structure and punching structure provided in the embodiments of this application;

[0021] Figure 4 yes Figure 3 A structural diagram from another perspective;

[0022] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure.

[0023] The following are the labeling elements in the figure:

[0024] 10. Bearing structure; 11. Bearing surface; 12. Limiting block; 13. Fixing hole; 20. Driving structure; 21. Cylinder body; 22. Piston rod; 221. Second connecting hole; 30. Punching structure; 31. Connecting piece; 311. Connecting plate; 3111. First connecting hole; 312. Blade template; 313. Air inlet; 314. Gas channel; 32. Cutting blade; 40. Air connector; 50. Support base; 51. Support plate; 52. Vertical plate; 60. Guide structure; 61. Guide rod; 62. Tightening screw; 70. Adjustment structure; 80. Buffer; 90. Fixing screw; 200. Sheet material; 300. Target workpiece. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 component 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.

[0027] 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.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] Please see Figures 1 to 5This application provides a punching device for cutting a target workpiece 300 from a sheet 200. The punching device includes a support structure 10 for supporting the sheet 200, a punching structure 30 slidably disposed above the support structure 10 in a vertical direction, and a drive structure 20 for driving the punching structure 30 to rise and fall. The punching structure 30 includes a connector 31 connected to the output end of the drive structure 20 and a cutting blade 32 connected to the side of the connector 31 facing the support structure 10. The cutting blade 32 forms a ring structure of a preset shape. The drive structure 20 drives the connector 31 to press against the support structure 10 so that the cutting blade 32 punches out the target workpiece 300 of the preset shape from the sheet 200. The surface of the connector 31 facing the support structure 10 communicates with the space defined by the cutting blade 32 and has an air blowing port 313 for blowing airflow into the space defined by the cutting blade 32.

[0030] Understandably, the target workpiece 300 in this application embodiment can be a PVB (Polyvinyl Butyral) film. PVB film is a semi-transparent film with excellent adhesion to quartz glass. It possesses properties such as transparency, heat resistance, cold resistance, and high mechanical strength, making it an excellent adhesive material for manufacturing laminated glass. Of course, in other possible embodiments, the target workpiece 300 can be other sheet materials, and this application embodiment does not impose a unique limitation on the specific structure of the target workpiece 300.

[0031] The support structure 10 of this application embodiment is used to support the sheet 200. The sheet 200 can be laid flat on the support structure 10, and the support structure 10 can support multiple sheets 200. The multiple sheets 200 are stacked on the support structure 10, so the punching device can punch multiple sheets 200 at a time, thereby improving the punching efficiency.

[0032] The cutting blade 32 forms a ring-shaped structure with a preset shape, which is adapted to the contour shape of the final target workpiece 300. For example, to form a circular target workpiece 300, the cutting blade 32 can form a circular ring-shaped structure, or to form a triangular target workpiece 300, the cutting blade 32 can form a triangular ring-shaped structure. In this embodiment, the specific shape of the preset shape is not uniquely limited and can be flexibly adjusted according to actual needs to obtain target workpieces 300 with different shapes.

[0033] In use, the punching device of this application first places the sheet 200 on the support structure 10, and then drives the connecting piece 31 to press against the support structure 10 through the drive structure 20, so that the cutting blade 32 cuts the sheet 200. Since the cutting blade 32 has a ring structure, the target workpiece 300 can be cut from the sheet 200 in one punching stroke, thereby effectively improving the cutting efficiency. Furthermore, by setting the air blowing port 313, airflow can be blown in the space defined by the cutting blade 32 after each punching, so that the waste material or target workpiece 300 formed by cutting is separated from the cutting blade 32. Therefore, it is not necessary to stop the machine to clean up the waste material or target workpiece 300, saving time and further improving the cutting efficiency.

[0034] In some embodiments, the cutting blade 32 is detachably connected to the connector 31, thereby facilitating the replacement of the cutting blade 32 according to different shapes of target workpieces 300, improving the adaptability of the punching device, and eliminating the need to replace the connector 31, thus saving costs.

[0035] In some embodiments, the punching device further includes an air source for supplying air to the air outlet 313, and the connector 31 has a gas channel 314 communicating with the air source, with the air outlet 313 communicating with the gas channel 314. Understandably, the air source can generate a high-pressure airflow, which is then delivered to the gas channel 314. After flowing through the gas channel 314, the high-pressure airflow exits from the air outlet 313 and is blown towards the supporting structure 10. The structure is simple and the blowing efficiency is high.

[0036] It is understood that the gas channel 314 can be a gas flow cavity formed inside the connector 31, and the gas flow cavity opens onto the surface of the connector 31 facing the support structure 10 to form an air outlet 313. In other possible embodiments, the gas channel 314 can also be an independent pipe provided in the connector 31, through which the gas source is connected to the air outlet 313.

[0037] In some embodiments, such as Figure 2 , Figure 3 and Figure 5As shown, the punching device also includes an air connector 40 connecting the gas channel 314 and the gas source. The air connector 40 is located at one end of the gas channel 314, and the air outlet 313 is located at the other end of the gas channel 314. Understandably, the air connector 40 is used to connect the connector 31 and the gas source. The high-pressure airflow from the gas source enters the gas channel 314 of the connector 31 through the air connector 40. By setting the air connector 40, it can serve as a physical interface to precisely connect the gas source pipeline to the gas channel 314 of the connector 31, ensuring efficient transmission of the high-pressure airflow to the gas channel 314 and avoiding airflow loss or efficiency reduction due to improper connection. Furthermore, the air connector 40 can adopt a quick-connect or threaded locking design to achieve rapid disassembly and assembly of the air path. For example, during equipment maintenance or replacement of the connector 31, the gas source can be separated without complex tools, significantly reducing downtime and improving production line flexibility.

[0038] In some embodiments, the punching device further includes a support base 50 for supporting the drive structure 20, and a connecting member 31 including a connecting plate 311 connected to the output end of the drive structure 20 and a die template 312 connected to the connecting plate 311 on the side facing the bearing structure 10. An air inlet 313 and a cutting blade 32 are disposed on the die template 312. By connecting the connecting plate 311 between the output end of the drive structure 20 and the die template 312, the connecting plate 311 acts as a force transmission medium, which can evenly distribute the concentrated load of the drive structure 20 to the entire contact surface of the die template 312, reduce local stress concentration, prevent deformation or cracking of the die template 312, and extend its service life. Furthermore, the connecting plate 311 can serve as a standardized connection structure, allowing for quick assembly and disassembly of die templates 312 of different specifications without adjusting the drive structure 20, thereby significantly shortening the changeover time. When the die template 312 is worn or damaged, only the module on the connecting plate 311 needs to be replaced, avoiding the need for maintenance of the drive structure 20 and saving maintenance costs.

[0039] In some embodiments, the support base 50 includes a support plate 51 located above and spaced apart from the support structure 10, and an upright plate 52 connecting the support plate 51 and the support structure 10. A drive structure 20 is connected to the support plate 51. A guide structure 60 connects the connecting plate 311 and the support plate 51, guiding the connecting plate 311 to move vertically. By providing the guide structure 60, the connecting plate 311 can be restricted to moving only vertically, avoiding skew or lateral displacement, ensuring precise alignment between the die template 312 and the sheet 200, thereby guaranteeing the repeatability of each cutting action during high-speed continuous punching and ensuring cutting consistency.

[0040] Furthermore, such as Figure 2 and Figure 4As shown, the guide structure 60 includes a guide rod 61 connected to the side of the connecting plate 311 opposite to the bearing structure 10. The guide rod 61 extends vertically, and the support plate 51 has a guide hole adapted to the guide rod 61, through which the guide rod 61 movably passes. Guiding is achieved through the cooperation of the guide rod 61 and the guide hole. The structure is simple and can achieve high-precision fit through standardized processing (such as grinding and hard chrome plating), eliminating the need for complex multi-axis linkage mechanisms and reducing manufacturing costs. In addition, multiple guide rods 61 can be arranged at intervals to further enhance the guiding effect.

[0041] Specifically, the connecting plate 311 may be provided with an insertion hole, the guide rod 61 is inserted into the insertion hole, and the side wall of the connecting plate 311 is provided with a threaded hole communicating with the insertion hole. The guide structure 60 includes a tightening screw 62. By the tightening screw 62 passing through the threaded hole and being threadedly connected to the threaded hole, the tightening screw 62 can abut against the side wall of the guide rod 61, thereby making the guide rod 61 and the connecting plate 311 securely connected.

[0042] In some embodiments, the drive structure 20 includes a cylinder 21 connected to the support plate 51 and a piston rod 22 that moves vertically through the cylinder 21. The piston rod 22 is connected to the connecting plate 311. Therefore, by sliding the piston rod 22 relative to the cylinder 21, the connecting plate 311 can be pushed up and down in the vertical direction.

[0043] Furthermore, the piston rod 22 is connected to an adjustment structure 70, which is used to adjust the position of the piston rod 22 relative to the cylinder 21 in the vertical direction, thereby adjusting the distance between the blade template 312 and the supporting structure 10. For example, when the distance between the blade template 312 and the supporting structure 10 is too far, and the ejection stroke of the piston rod 22 is insufficient to allow the cutting blade 32 to engage with the sheet 200, the distance between the blade template 312 and the supporting structure 10 can be shortened by adjusting the adjustment structure 70 when the cylinder 21 is not in motion, thereby compensating for the insufficient ejection stroke of the piston rod 22 and improving the adaptability of the punching device.

[0044] Optionally, the piston rod 22 extends upward beyond the top surface of the cylinder body 21. The adjusting structure 70 is an adjusting nut sleeved on the piston rod 22. The top end of the piston rod 22 is provided with a threaded section that matches the adjusting nut. By turning the adjusting nut, the rotational movement of the adjusting nut can be converted into the linear movement of the piston rod 22, thereby adjusting the position of the piston rod 22 relative to the cylinder body 21 in the vertical direction.

[0045] Furthermore, a buffer element 80 is fitted onto the piston rod 22. The buffer element 80 is located between the adjusting structure 70 and the cylinder 21. By setting the buffer element 80, a buffering and vibration reduction function can be achieved. Optionally, the buffer element 80 is made of rubber, silicone, or sponge.

[0046] In some embodiments, the connecting plate 311 has a first connecting hole 3111 that extends vertically, and the piston rod 22 has a second connecting hole 221 corresponding to the first connecting hole 3111 at the end away from the cylinder 21. The punching device also includes a fixing screw 90, which passes through the first connecting hole 3111 and the second connecting hole 221 in sequence, thereby realizing the fixed connection between the connecting plate 311 and the piston rod 22.

[0047] In some embodiments, the supporting structure 10 has a supporting surface 11 for supporting the sheet 200. The supporting surface 11 is provided with a limiting block 12 for limiting the sheet 200. The limiting block 12 is used to abut against the side of the sheet 200. Multiple limiting blocks 12 are arranged at intervals. The multiple limiting blocks 12 together form a placement area for the sheet 200, thereby limiting the sheet 200 and stabilizing the position of the sheet 200 during the punching process, further improving the accuracy of punching.

[0048] In some embodiments, the limiting block 12 is detachably connected to the bearing surface 11, and the position of the limiting block 12 on the bearing surface 11 is adjustable to adjust the size of the placement area, thereby adapting to sheets 200 of different models and sizes and further improving the applicability of the punching device. Specifically, the bearing surface 11 is provided with a plurality of spaced fixing holes 13, and the limiting block 12 can be selectively connected to any fixing hole 13 by fasteners, thereby adjusting the position of the limiting block 12 on the bearing surface 11.

[0049] It should be noted that when punching, the unused or discarded sheet 200 can be placed on the supporting structure 10 first, and then the sheet 200 to be punched can be placed on top of the unused or discarded sheet 200. The discarded sheet 200 can act as a buffer, thereby protecting the cutting blade 32.

[0050] This utility model also proposes a glass production line, which includes a punching and cutting device. The specific structure of the punching and cutting device is as described in the above embodiments. Since this glass production line adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0051] In summary, when using the punching device of this application, the sheet 200 is first placed on the support structure 10, and then the drive structure 20 drives the connector 31 to press against the support structure 10 so that the cutting blade 32 cuts the sheet 200. Since the cutting blade 32 has a ring structure, the target workpiece 300 can be cut from the sheet 200 in one punching stroke, thereby effectively improving the cutting efficiency. Furthermore, by setting the air blowing port 313, airflow can be blown in the space defined by the cutting blade 32 after each punching, so that the waste material or target workpiece 300 formed by cutting is separated from the cutting blade 32. Therefore, it is not necessary to stop the machine to clean up the waste material or target workpiece 300, saving time and further improving the cutting efficiency.

[0052] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A die-cutting apparatus for cutting out a target workpiece (300) from a sheet material (200), characterized by, The punching device includes a support structure (10) for supporting the sheet (200), a punching structure (30) slidably disposed above the support structure (10) in a vertical direction, and a drive structure (20) for driving the punching structure (30) to rise and fall. The punching structure (30) includes a connector (31) connected to the output end of the drive structure (20) and a cutting blade (32) connected to the connector (31) on the side facing the support structure (10). The cutting blade (32) is circumferentially shaped. The ring structure is formed in a preset shape. The driving structure (20) drives the connector (31) to press against the bearing structure (10) so that the cutting blade (32) punches out the target workpiece (300) of the preset shape from the sheet (200). The surface of the connector (31) facing the bearing structure (10) is provided with an air blowing port (313) that communicates with the space defined by the cutting blade (32). The air blowing port (313) is used to blow airflow into the space defined by the cutting blade (32).

2. The die cutting apparatus of claim 1, wherein: The punching device also includes an air source for supplying air to the air inlet (313), and the connector (31) has a gas channel (314) communicating with the air source, and the air inlet (313) is connected to the gas channel (314).

3. The die cutting apparatus of claim 2, wherein: The punching device also includes an air connector (40) connecting the gas channel (314) and the gas source. The air connector (40) is located at one end of the gas channel (314), and the air outlet (313) is located at the other end of the gas channel (314).

4. The die cutting apparatus of claim 1 wherein: The punching device also includes a support base (50) for supporting the drive structure (20), and the connector (31) includes a connecting plate (311) connected to the output end of the drive structure (20) and a blade template (312) connected to the side of the connecting plate (311) facing the bearing structure (10). The air inlet (313) and the cutting blade (32) are located on the blade template (312).

5. The die cutting apparatus of claim 4, wherein: The support base (50) includes a support plate (51) located above the bearing structure (10) and spaced apart from the bearing structure (10), and an upright plate (52) connecting the support plate (51) and the bearing structure (10). The driving structure (20) is connected to the support plate (51). A guide structure (60) is connected between the connecting plate (311) and the support plate (51). The guide structure (60) is used to guide the connecting plate (311) to move up and down in the vertical direction.

6. The die cutting apparatus of claim 5, wherein: The guide structure (60) includes a guide rod (61) connected to the side of the connecting plate (311) away from the bearing structure (10). The guide rod (61) extends in a vertical direction. The support plate (51) is provided with a guide hole adapted to the guide rod (61). The guide rod (61) is movably inserted through the guide hole.

7. The die cutting apparatus of claim 6, wherein: The drive structure (20) includes a cylinder (21) connected to the support plate (51) and a piston rod (22) that moves vertically through the cylinder (21). The piston rod (22) is connected to the connecting plate (311) and is connected to an adjustment structure (70). The adjustment structure (70) is used to adjust the position of the piston rod (22) relative to the cylinder (21) in the vertical direction.

8. The die-cutting device of any one of claims 1 to 7, wherein: The supporting structure (10) has a supporting surface (11) for supporting the sheet (200). The supporting surface (11) is provided with a limiting block (12) for limiting the sheet (200). The limiting block (12) is used to abut against the side of the sheet (200). Multiple limiting blocks (12) are arranged at intervals, and multiple limiting blocks (12) together form a placement area for the sheet (200).

9. The die cutting apparatus of claim 8, wherein: The limiting block (12) is detachably connected to the bearing surface (11), and the position of the limiting block (12) on the bearing surface (11) is adjustable to adjust the size of the placement area.

10. A glass production line characterized in that, Includes the punching device as described in any one of claims 1-9.

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