A multi-functional punching device

Abstract

The application relates to the field of material processing, and particularly relates to a multifunctional punching device. The multifunctional punching device comprises a rack, a conveying mechanism and a punching mechanism. The rack comprises a base and at least two support frames, a gap is formed between the two support frames, the punching mechanism comprises at least two punching units, each punching unit comprises a lower die assembly and an upper die assembly, the lower die assembly is arranged on the base, the two upper die assemblies are detachably arranged between the two support frames and movably installed at any position of the gap, the conveying mechanism comprises a conveying roller assembly and a guide assembly, the guide assembly is fixedly arranged at the discharging end of the base and located above the conveying roller assembly, and is used for generating a pre-tightening force for the material. The structure can improve the universality of the punching device, can be suitable for the processing requirements of various hole positions, meanwhile, the pre-tightening force of the material conveying does not need to be accurately controlled, the material can keep a flat state in the conveying process, so that punching errors can be avoided.

Description

Technical Field

[0001] This application relates to the field of materials processing, and in particular to a multifunctional drilling device. Background Technology

[0002] In the processing of agricultural mulch materials such as weed control fabric and frost protection fabric, perforation has always been a crucial process. With the continuous advancement of agricultural modernization, agricultural production places increasingly higher demands on the quality, performance, and processing efficiency of agricultural mulch materials. Suitable perforation equipment can accurately create holes of various sizes in agricultural mulch materials, endowing them with excellent properties such as air permeability, drainage, and light transmission. This significantly improves the growing environment for crops, increases crop yield and quality, and powerfully promotes agricultural production towards a more efficient, environmentally friendly, and sustainable direction. Existing perforation machines for agricultural mulch materials on the market typically employ a structure comprising a frame, a conveying mechanism, and a perforation mechanism. The frame includes a base and a support frame. The conveying mechanism is mounted on the base and uses drive and driven rollers to transport the material. The perforation mechanism includes an upper die assembly and a lower die assembly that can open and close. The lower die assembly is mounted on the base, and the upper die assembly is mounted on the support frame. Material can be conveyed between the upper and lower die assemblies. When the punching machine is working, the conveying mechanism smoothly transports the agricultural mulch material to the bottom of the punching mechanism. Then, the upper mold assembly presses down to close with the lower mold assembly, thus completing the punching operation on the conveying mulch material. Existing punching machines have significant drawbacks. Firstly, their versatility is low. Due to the varying areas, hole spacing, and hole sizes of agricultural mulch materials, the punching machine cannot be adapted to different processing needs. Existing punching machines often can only barely cope with diverse processing requirements through limited adjustments, failing to fundamentally meet various complex processing scenarios. Secondly, for thinner mulch materials, the preload between the drive and driven rollers is difficult to precisely control. Too tight a force can cause material tearing, while too loose a force can cause wrinkles during transport, leading to punching errors and inaccurate hole positions. Utility Model Content

[0003] In order to improve the versatility of the drilling equipment and make it suitable for processing various hole positions, while eliminating the need for precise control of the material conveying preload and keeping the material flat during the conveying process to avoid drilling errors, this application provides a multi-functional drilling equipment.

[0004] A multi-functional drilling device includes a frame, a conveying mechanism, and a drilling mechanism. The frame includes a base and at least two support frames with a gap between them. The drilling mechanism includes at least two drilling units, each including a lower die assembly and an upper die assembly. The lower die assembly is disposed on the base, and the two upper die assemblies are detachably disposed between the two support frames and can be movably installed at any position within the gap. The conveying mechanism includes a conveying roller assembly and a guiding assembly. The conveying roller assembly includes a driving roller group and a driven roller group, both rotatably disposed on the base. The driving roller group is disposed at the discharge end of the base, and the driven roller group is disposed at the feed end of the base. The guiding assembly is fixedly disposed at the discharge end of the base and located above the driving roller group, used to generate a pre-tightening force on the material. By adopting the above technical solution, a gap is formed between the two support frames of the frame, and the two upper die assemblies of the drilling mechanism are detachably disposed between the two support frames and movably installed at any position within the gap, allowing the position of the upper die assemblies to be flexibly adjusted according to different processing requirements. For agricultural mulch materials of different sizes and with varying hole spacing and size requirements, the position of the upper mold assembly can be adjusted to adapt to different applications, significantly improving the versatility of the perforating equipment and making it suitable for more complex processing scenarios. The active roller assembly of the conveying mechanism is located at the base discharge end, and the driven roller assembly is located at the base feed end. The guide assembly is fixed at the base discharge end and positioned above the active roller assembly. When the material passes near the guide assembly at the discharge end, the friction between the guide assembly and the material surface provides a pre-tightening force. This pre-tightening force makes the material flatter near the guide assembly, reducing the possibility of wrinkles and thus improving perforation. This avoids perforation errors caused by material wrinkles and improves perforation accuracy, especially when perforating large mulch materials. Preferably, the active roller assembly includes an active roller and a drive component, and the driven roller assembly includes a driven roller and a rotating shaft. The drive component drives the active roller to rotate and is mounted on the base, and the driven roller is rotated and mounted on the base via the rotating shaft. The installation height of the active roller is lower than that of the driven roller. By adopting the above technical solution, the material is conveyed from the driven roller at the feeding end to the active roller at the discharging end. During the conveying process, the material generates a certain tension, facilitating stable material transport and better adapting to diverse processing needs. This improves the quality and efficiency of perforation, and is suitable for perforating agricultural mulch materials with different area sizes, hole spacing, and hole size requirements. Preferably, the guiding assembly includes a first guide rod, a second guide rod, and a third guide rod. All three guide rods are parallel to the active roller. The installation height of the first guide rod is consistent with the installation height of the lower mold assembly. The second guide rod is vertically positioned directly below the first guide rod, and the third guide rod is located within the base. The material passes sequentially through the first guide rod, the second guide rod, the third guide rod, and the active roller.By adopting the above technical solution, the guiding assembly includes a first guide rod, a second guide rod, and a third guide rod parallel to the drive roller. The first guide rod is installed at the same height as the lower die assembly, the second guide rod is directly below the first guide rod, and the third guide rod is located inside the base. The material passes through these three guide rods and the drive roller sequentially. When the material passes the first guide rod, its height is consistent with the lower die assembly, allowing the material to smoothly transition to the punching position, providing a stable starting state for the punching operation. Next, the material passes the second guide rod, which is vertically positioned directly below the first guide rod, constraining the vertical direction of the material and preventing it from swaying up and down during transport. The material then passes the third guide rod located inside the base, which further adjusts the material's transport path, ensuring good tension and transport posture before entering the drive roller. Finally, the material passes through the drive roller, completing the entire transport process. This configuration allows the guide assembly to guide and constrain the material from multiple directions, generating a pre-tightening force to ensure the material remains flat and stable during transport, effectively preventing wrinkles and improving drilling accuracy. This allows the multi-functional drilling equipment to better adapt to different processing needs, improving the equipment's versatility and processing quality. Preferably, the first, second, and third guide rods are all smooth surfaces. By adopting the above technical solution, the smooth surfaces of the first, second, and third guide rods reduce friction between the material and these guide rods. Reduced friction makes the material transport smoother, less prone to obstruction and wrinkles or jamming, thus ensuring stable material transport. Simultaneously, stable transport helps improve the accuracy of the drilling position, avoiding drilling errors caused by unstable material transport, and improving the processing quality and efficiency of the drilling equipment. Preferably, the vertical height of the lower surface of the third guide rod is the same as the vertical height of the upper surface of the second guide rod. By adopting the above technical solution, the material can transition horizontally to the third guide rod after passing the second guide rod, avoiding wrinkles or displacement caused by uneven force on the material due to height differences. This smooth transition ensures the stability of the material during transmission, thereby improving the accuracy of the punching position, significantly reducing punching errors, and also improving punching efficiency, enabling this multi-functional punching device to better meet the processing needs of different agricultural mulching materials. Preferably, the base is provided with a mounting plate, with both sides of the mounting plate connected to the base. The two lower mold components are spaced apart on the mounting plate and correspond one-to-one with the two upper mold components. By adopting the above technical solution, the mounting plate on the base, with both sides of the mounting plate connected to the base, provides a stable mounting foundation for the lower mold components. Spaced apart on the mounting plate makes their spatial layout more reasonable and avoids mutual interference.Simultaneously, the two lower die assemblies correspond one-to-one with the two upper die assemblies. During the drilling operation, the upper die assembly presses down and cooperates with the lower die assembly to complete the drilling action. This one-to-one correspondence ensures the accuracy and efficiency of the drilling operation. Furthermore, the stable mounting structure provided by the mounting plate reduces the shaking of the lower die assembly during the drilling process, further improving the drilling accuracy and quality. This allows the multi-functional drilling equipment to better adapt to different processing needs, improving the equipment's versatility and practicality. Preferably, the lower die assembly includes a lower mold with a through hole, and the upper die assembly includes an upper mold and a drive cylinder. The upper mold is equipped with a cutter that matches the shape of the through hole. The drive cylinder drives the upper mold to press down until the cutter engages with the through hole to complete the drilling action. By adopting the above technical solution, the drive cylinder drives the upper mold to press down, causing the cutter on the upper mold to engage with the through hole of the lower mold. Because the cutter and the through hole are shaped, the material located between them can be accurately cut during the engagement process, achieving the drilling action. This precise fitting method avoids drilling errors. Compared to existing technologies where drilling can easily result in wrinkles and inaccurate hole positions, this drilling equipment ensures precise hole positioning, thus meeting the processing requirements for high drilling accuracy. It is also applicable to various specifications of agricultural mulching materials, improving the equipment's versatility and adapting to diverse processing scenarios. Preferably, the cutter's edge is serrated. By adopting the above technical solution, the serrated edge design reduces the contact area between the cutter and the material during drilling, concentrating stress and reducing the required drilling pressure. Under pressure, the serrated edge cuts into the material more easily, reducing the pulling and squeezing of the material during drilling, preventing wrinkles and displacement, thereby reducing drilling errors and improving hole position accuracy. Simultaneously, the serrated shape increases the friction between the cutter and the material, more effectively fixing the material during cutting and preventing slippage, further improving drilling accuracy and quality. Moreover, this design makes the drilling process smoother and better adaptable to agricultural mulch materials of different materials and thicknesses, improving the versatility and applicability of the drilling equipment. Preferably, the upper mold assembly includes a mounting block and fasteners. The upper mold is detachably connected to the mounting block via the fasteners. The length of the mounting block is greater than the gap between the two support frames, and the lower surface of the mounting block can abut against the upper surfaces of the two support frames. By adopting the above technical solution, the upper mold in the upper mold assembly is detachably connected via fasteners and mounting blocks, and the length of the mounting block is greater than the gap between the two support frames, with its lower surface abutting against the upper surfaces of the two support frames. This structural design allows the upper mold to be easily disassembled and replaced. When facing different processing requirements, such as needing to drill agricultural mulch materials of different areas, hole spacings, and hole sizes, a suitable upper mold can be quickly replaced without complex adjustments or replacements to the entire drilling mechanism.This not only improves the versatility of the drilling equipment, making it suitable for diverse processing scenarios, but also reduces the time and cost of equipment adjustments to a certain extent, thereby increasing the efficiency of drilling operations. At the same time, the contact method between the mounting block and the support frame ensures the stability of the upper mold assembly installation, helping to improve drilling accuracy and avoiding drilling errors caused by upper mold assembly wobbling. This is especially beneficial for drilling large coated materials, effectively reducing inaccurate hole positioning caused by material wrinkles.

[0005] In summary, this application includes at least one of the following beneficial technical effects: 1. The upper mold assembly of the punching mechanism is detachably set between two support frames and can be installed at any position in the gap. Different agricultural mulch materials have different area sizes, hole spacing, hole sizes and other diverse processing requirements. By installing and removing the upper mold assembly at any position in the gap, the position and number of the upper mold assembly can be flexibly adjusted to meet different processing requirements, improve the versatility of the punching equipment, and fundamentally meet various complex processing scenarios. 2. The guide component of the conveying mechanism is fixedly installed at the discharge end of the base and located above the active roller group. When the material passes through the guide component during the conveying process, the guide component will apply a certain force to the material, thereby generating a pre-tightening force on the material. This pre-tightening force can keep the material in a taut state during the conveying process, reduce the wrinkling phenomenon when punching large coated materials, and improve the accuracy of punching. 3. The upper mold assembly is detachably connected to the upper mold via mounting blocks and fasteners. When the drilling mechanism needs to be replaced to adapt to different drilling requirements, or when the drilling mechanism needs to be maintained, the upper mold can be easily removed from the mounting block simply by removing the fasteners. The operation is simple and convenient, making it easy to replace and maintain the drilling mechanism to adapt to different drilling requirements. Attached Figure Description

[0006] Figure 1 This is an exploded view of a multifunctional drilling device according to Embodiment 1; Figure 2 This is a schematic diagram of the structure of a multifunctional drilling device according to Embodiment 1; Figure 3 This is a right view of a multifunctional punching device according to Embodiment 1; Figure 4 yes Figure 3 AA cross-section view.

[0007] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Conveying mechanism; 3. Drilling mechanism; 4. Material; 11. Base; 12. Support frame; 13. Gap; 14. Mounting plate; 21. Conveying roller assembly; 22. Guide assembly; 141. Mounting groove; 211. Driving roller assembly; 212. Driven roller assembly; 221. First guide rod; 222. Second guide rod; 223. Third guide rod; 31. Lower die assembly; 32. Upper die assembly; 311. Through hole; 321. Press head; 322. Press plate; 323. Mounting block; 324. Fastener; 325. Drive cylinder. Detailed Implementation

[0008] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail. Example 1 This application provides a multifunctional drilling device, referring to... Figure 1 and Figure 2 The equipment includes a frame 1, a conveying mechanism 2, and a punching mechanism 3 mounted on the frame 1. The frame 1 provides a supporting foundation for the entire equipment. The conveying mechanism 2 is used to transport agricultural mulch material 4. The punching mechanism 3 is located above the conveying mechanism 2 and is used to punch holes in the material 4. The three work together to achieve the punching operation on the agricultural mulch material 4, improving the versatility and punching accuracy of the punching equipment.

[0009] Specifically, the frame 1 includes a base 11 and support frames 12. The base 11 is provided with a mounting plate 14, which is connected to the base 11 on both sides to support the bottom of the material 4. In this embodiment, six support frames 12 are provided, with two support frames 12 arranged in a group at intervals on the base 11. The base 11 is the bottom support structure of the entire equipment and is usually made of a sturdy metal material 4, such as steel, to ensure the stability of the equipment. The support frames 12 are used to install the upper mold assembly 32 of the drilling mechanism 3, and a gap 13 is formed between two support frames 12 for installing the drilling mechanism 3. The support frame 12 can be a columnar structure, and its material can also be steel to ensure sufficient strength. The support frames 12 are fixed to the base 11 by welding or bolting.

[0010] Reference Figure 3 and Figure 4Specifically, the conveying mechanism 2 in this embodiment includes a conveying roller assembly 21 for conveying material 4 and a guide assembly 22 for providing preload. The conveying roller assembly 21 includes a drive roller group 211 and a driven roller group 212, both rotatably mounted on the base 11. The drive roller group 211 is located at the discharge end of the base 11, and the driven roller group 212 is located at the feed end of the base 11. The drive roller group 211 includes a drive roller and a drive component, which is a motor that drives the drive roller to rotate via belt drive or chain drive. The drive roller is a smooth metal roller to reduce friction with the material 4. The driven roller group 212 includes a driven roller and a rotating shaft. The driven roller is rotatably mounted on the base 11 via the rotating shaft. The driven roller can also be a metal roller with a relatively smooth surface. The installation height of the drive roller is lower than that of the driven roller to allow space for the installation of the guide assembly 22. The conveying direction of material 4 is as follows: material 4 is unwound and conveyed to the driven roller, and then continuously conveyed by the drive roller to the rewinding stage.

[0011] Specifically, the punching mechanism 3 in this embodiment includes three punching units, which are spaced apart in the gap 13 of any set of support frames 12. Each punching unit includes a lower die assembly 31 and an upper die assembly 32. The three lower die assemblies 31 are spaced apart on the mounting plate 14 and correspond one-to-one with the two upper die assemblies 32. The lower die assembly 31 includes a lower mold. Specifically, the mounting plate 14 is provided with a mounting groove 141 parallel to the gap 13. The lower mold can be detachably installed on any position of the mounting groove 141 on the mounting plate 14 by means of screws, bolts, etc. The lower mold has a through hole 311 and can be made of wear-resistant alloy steel to ensure its service life. The upper mold assembly 32 includes an upper mold and a drive cylinder 325. The upper mold includes a pressure plate 322 and a pressure head 321. The pressure head 321 is detachably mounted to the pressure plate 322 by bolts, and the bottom of the pressure head 321 penetrates through the pressure plate 322. A cutter with a serrated edge, matching the shape of the through hole 311, is slidably disposed inside the pressure head 321. In this embodiment, the large hole shape is rectangular, therefore, the through hole 311 is rectangular. The cutter is a rectangular cutter formed by four metal sheet-like structures. The drive cylinder 325 is disposed on the side of the base 11 near the pressure head 321, and the drive cylinder 325 is connected to the pressure head 321. The drive cylinder 325 drives the pressure head 321 to press down. After the pressure plate 322 and the lower mold are in contact, the drive cutter continues to press down until it engages with the through hole 311 to complete the drilling action. This method of achieving drilling by pressing the pressure head 321 and the mold together is a conventional existing method, and its specific structure and principle will not be described in detail here.

[0012] Specifically, both upper mold components 32 are detachably mounted between the two support frames 12 and can be movably installed at any position within the gap 13. Each upper mold component 32 also includes a mounting block 323 and a fastener 324. The upper mold is detachably connected to the mounting block 323 via the fastener 324. The length of the mounting block 323 is greater than the distance between the gaps 13, and the lower surface of the mounting block 323 can abut against the upper surface of both support frames 12. The mounting block 323 can be a metal block, and the fastener 324 can be a bolt. By tightening the bolt, the upper mold can be securely mounted on the mounting block 323. Due to the existence of the gap 13, the distance between the two upper mold components 32 can be adjusted by adjusting the installation position of the upper mold components 32 within the gap 13, thus adapting to the requirements of different hole spacings. Furthermore, the mounting block 323 and fastener 324 allow for quick and convenient replacement of different mold models to accommodate different hole sizes and shapes. The detachable and movable installation method of the upper mold assembly 32 allows the equipment to flexibly adjust the position and quantity of the upper mold assembly 32 according to different drilling requirements, thereby improving the versatility of the equipment.

[0013] Specifically, in this embodiment, the guide assembly 22 is fixedly disposed at the discharge end of the base 11 and located above the active roller assembly 211, and is used to generate a pre-tightening force for the material 4. The guide assembly 22 includes a first guide rod 221, a second guide rod 222 and a third guide rod 223. The three guide rods are metal cylindrical structures and are all parallel to the active roller.

[0014] Specifically, the installation height of the first guide rod 221 is consistent with the installation height of the lower die assembly 31 and the driven roller, so that the material 4 is conveyed horizontally. The second guide rod 222 is vertically arranged directly below the first guide rod 221, and the third guide rod 223 is located inside the base 11, with the vertical height of the lower surface of the third guide rod 223 consistent with the vertical height of the upper surface of the second guide rod 222. All three guide rods have smooth surfaces to reduce friction with the material 4. The special position design of the three guide rods allows the material 4 to generate just the right preload during the conveying process. Furthermore, the conveying direction of the material 4 changes from horizontal to vertical, then back to horizontal, and then is wound up. The friction force and the conveying direction always remain stable and perpendicular. This design not only provides preload but also avoids the tilting tension generated during the conveying of the material 4, which could cause the material 4 to easily deviate and wrinkle during the conveying process. This ensures that the material 4 maintains a stable conveying state when passing through the guide rods, improving the accuracy of the drilling. Specifically, the conveying direction of material 4 is as follows: material 4 is unwound and conveyed to the driven roller, then horizontally conveyed to the upper surface of the first guide rod 221, then vertically conveyed at 90° to the lower surface of the second guide rod 222, then horizontally conveyed along the lower surface of the second guide rod 222 to the upper surface of the third guide rod 223, and finally wound up to the drive roller.

[0015] The implementation principle of this embodiment is as follows: The punching equipment, consisting of a frame 1, a conveying mechanism 2, and a punching mechanism 3, performs punching operations on agricultural mulch material 4, improving versatility and punching accuracy. The base 11 of the frame 1 is made of sturdy metal material 4 such as steel, providing bottom support for the equipment. An mounting plate 14 is installed on it to support the bottom of the material 4. Two columnar steel support frames 12 are fixed to the base 11 by welding or bolting, used to install the upper mold assembly 32 of the punching mechanism 3, with a gap 13 between them. In the conveying roller assembly 21 of the conveying mechanism 2, the active roller group 211 is located at the discharge end of the base 11, and the driven roller group 212 is located at the feed end. The active roller is installed at a lower height than the driven roller. After the material 4 is unwound to the driven roller, it is driven by the active roller to be conveyed to the rewinding end. The guide assembly 22 contains three cylindrical metal guide rods parallel to the active roller. Its special position design generates pre-tension force during the conveying of the material 4, changes the conveying direction, and maintains stability, reducing wrinkles and improving punching accuracy. The punching mechanism 3 has three punching units. In the lower die assembly 31 of each unit, the lower die can be detachably installed at any position in the mounting slot 141 of the mounting plate 14. The upper die assembly 32 includes an upper die and a drive cylinder 325. A rectangular serrated cutter matching the through hole 311 of the lower die is slidably set in the pressure head 321 of the upper die. The drive cylinder 325 drives the pressure head 321 and the cutter to press down to complete the punching. The two upper die assemblies 32 are detachable and movable in the gap 13 of the support frame 12. The position can be adjusted and the die can be replaced by the mounting block 323 and the fastener 324 to adapt to different hole position requirements and improve the versatility of the equipment.

[0016] Example 2 The difference between this embodiment and Embodiment 1 is that there are three mounting plates 14, with one mounting plate 14 corresponding to a set of support frames 12. Each set of support frames 12 is detachably equipped with a set of drilling units, and each set of drilling units includes at least two drilling units. All drilling units can complete the pressing action simultaneously. This design of the drilling equipment can further improve the drilling efficiency. Everything else is the same as in Embodiment 1.

[0017] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-functional perforating apparatus characterized by comprising: The device includes a frame (1), a conveying mechanism (2), and a punching mechanism (3). The frame (1) includes a base (11) and at least two support frames (12), with a gap (13) formed between the two support frames (12). The punching mechanism (3) includes at least two punching units, each punching unit including a lower die assembly (31) and an upper die assembly (32). The lower die assembly (31) is disposed on the base (11), and the two upper die assemblies (32) are detachably disposed between the two support frames (12) and can be movably installed in any part of the gap (13). The conveying mechanism (2) includes a conveying roller assembly (21) and a guide assembly (22). The conveying roller assembly (21) includes an active roller group (211) and a driven roller group (212) that are rotatably disposed on the base (11). The active roller group (211) is disposed at the discharge end of the base (11), and the driven roller group (212) is disposed at the feed end of the base (11). The guide assembly (22) is fixedly disposed at the discharge end of the base (11) and located above the active roller group (211) to generate a preload force on the material (4).

2. The multifunctional drilling device according to claim 1, characterized in that, The active roller assembly (211) includes an active roller and a driving member, and the driven roller assembly (212) includes a driven roller and a rotating shaft. The driving member drives the active roller to rotate and is mounted on the base (11). The driven roller is rotated and mounted on the base (11) via the rotating shaft. The installation height of the active roller is lower than the installation height of the driven roller.

3. The multifunctional drilling device according to claim 2, characterized in that, The guide assembly (22) includes a first guide rod (221), a second guide rod (222), and a third guide rod (223). All three guide rods are parallel to the active roller. The installation height of the first guide rod (221) is the same as the installation height of the lower mold assembly (31). The second guide rod (222) is vertically positioned directly below the first guide rod (221). The third guide rod (223) is located inside the base (11). The material (4) passes through the first guide rod (221), the second guide rod (222), the third guide rod (223), and the active roller in sequence.

4. The multifunctional drilling device according to claim 3, characterized in that, The first guide rod (221), the second guide rod (222), and the third guide rod (223) all have smooth surfaces.

5. The multifunctional drilling device according to claim 3, characterized in that, The vertical height of the lower surface of the third guide rod (223) is the same as the vertical height of the upper surface of the second guide rod (222).

6. The multifunctional drilling device according to claim 1, characterized in that, The base (11) is provided with an mounting plate (14), and the two sides of the mounting plate (14) are respectively connected to the base (11). The two lower mold components (31) are spaced apart on the mounting plate (14) and correspond one-to-one with the two upper mold components (32).

7. The multifunctional drilling device according to claim 1, characterized in that, The lower mold assembly (31) includes a lower mold with a through hole (311). The upper mold assembly (32) includes an upper mold and a drive cylinder (325). The upper mold is provided with a cutter that matches the shape of the through hole (311). The drive cylinder (325) drives the upper mold to press down until the cutter engages with the through hole (311) to complete the punching action.

8. The multifunctional drilling device according to claim 7, characterized in that, The edge of the cutter is serrated.

9. The multifunctional drilling device according to claim 7, characterized in that, The upper mold assembly (32) includes a mounting block (323) and a fastener (324). The upper mold is detachably connected to the mounting block (323) via the fastener (324). The length of the mounting block (323) is greater than the spacing of the gap (13). The lower surface of the mounting block (323) can abut against the upper surface of the two support frames (12).

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