Multifunctional hardware stretching piece trimming device

Abstract

This utility model relates to the field of rotary cutting equipment technology, specifically a multifunctional edge-cutting device for metal stretching parts. It includes a worktable, an active cutting blade assembly, a driven cutting blade assembly mounted on the worktable, and a first auxiliary assembly. The active cutting blade assembly includes a drive assembly, a drive gear, and an active cutter head mounted on the worktable. The driven cutting blade assembly includes a crankshaft rotatably mounted on the worktable, a driven gear rotatably mounted on the crankshaft, a driven cutter head, and a pressing ring. The drive gear meshes with the driven gear. The first auxiliary assembly includes a cantilever rotatably mounted on the crankshaft and an upper auxiliary block mounted on the cantilever. The upper auxiliary block is in contact with the top side of the material to be cut, the pressing ring is in contact with the top side of the material to be cut, and the annular support platform is in contact with the bottom side of the material to be cut. This multifunctional edge-cutting device for metal stretching parts clamps and limits the material to be cut at two points, keeping the material horizontal, resulting in a flatter cut and higher dimensional accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of metal stretching and cutting equipment, specifically a multifunctional metal stretching and cutting device. Background Technology

[0002] A cutting machine is a common machine for cutting materials. During cutting, the material needs to be placed on a cutting table to achieve the cutting. In order to ensure the cutting accuracy, the material often needs to be positioned to prevent it from sliding under the cutting force, which would affect the cutting quality.

[0003] Existing methods for rotary cutting of metal stretching parts include: creating a mold from the product or using a hydraulic rotary cutting machine. However, the equipment and mold costs of the above two methods are high, and the processed products are limited. Utility Model Content

[0004] The purpose of this utility model is to provide a multifunctional hardware stretching and cutting device that can clamp and limit the material to be cut at two points, keeping the material horizontal, making the cutting flatter and the cutting size more accurate.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A multifunctional metal stretching and trimming device includes a worktable, an active cutting blade assembly disposed on the worktable, a driven cutting blade assembly disposed on the worktable, and a first auxiliary assembly disposed on the driven cutting blade assembly. The active cutting blade assembly includes a drive assembly disposed on the worktable, a drive gear disposed on the output end of the drive assembly, and an active cutter head. The active cutter head is provided with an annular support platform, and a first shearing surface is provided at one end of the annular support platform near the drive assembly. The driven cutting blade assembly includes a crankshaft rotatably disposed on the worktable, a driven gear rotatably disposed on the crankshaft, a driven cutter head, and a pressing ring. The pressing ring is disposed opposite to the annular support platform. The driven cutter head is provided with a second shearing surface, and the first shearing surface is tangential to the second shearing surface. The drive gear meshes with the driven gear. The first auxiliary assembly includes a cantilever rotatably disposed on the crankshaft and an upper auxiliary block disposed on the cantilever. The upper auxiliary block is in contact with the top side of the material to be cut, the pressing ring is in contact with the top side of the material to be cut, and the annular support platform is in contact with the bottom side of the material to be cut.

[0007] The multifunctional hardware stretching and trimming equipment also includes a second auxiliary component located below the upper auxiliary block. The second auxiliary component includes a first support member, a second support member, and a roller rotatably disposed between the first support member and the second support member on the worktable. The height of the roller is lower than the height of the annular support platform.

[0008] The active cutter head further includes a second ring portion disposed at the bottom of the annular support platform. The diameter of the second ring portion is smaller than the diameter of the annular support platform. The driven cutter head includes a third ring portion and a fourth ring portion. The diameter of the third ring portion is larger than the diameter of the fourth ring portion. The second shearing surface is disposed on one end face of the third ring portion near the fourth ring portion. The third ring portion is tangent to the second ring portion, and the fourth ring portion is tangent to the annular support platform.

[0009] The crankshaft includes a first half-shaft, a second half-shaft, and a lever disposed on the second half-shaft. The first half-shaft has a first axis, and the second half-shaft has a second axis. The first axis and the second axis are offset from each other. The rotation center of the second half-shaft coincides with the first axis. A driven cutter head, a driven gear, and a pressing ring are disposed on the second half-shaft. The axes of the driven cutter head, the driven gear, and the pressing ring coincide with the second axis.

[0010] The second half-shaft is provided with several adjustment holes along the circumferential direction, and the pull rod is installed in the adjustment holes.

[0011] The driven cutter assembly further includes a sleeve rotatably fitted onto the second half-shaft and a fixing ring disposed on the sleeve. One end of the sleeve is provided with a retaining ring, and the outer surface of the other end of the sleeve is provided with an external thread. The inner side of the fixing ring is provided with an internal thread, and the internal thread and the external thread are connected in a mating connection. The driven gear, the driven cutter head, and the pressing ring are sequentially fitted onto the sleeve.

[0012] The driven cutter assembly further includes a third bearing and a fourth bearing, with the first half-shaft passing through the third bearing and the fourth bearing.

[0013] The drive assembly includes a drive motor, a drive belt, a drive shaft, a first bearing, a second bearing, and drive teeth. The drive shaft is sequentially fitted with a drive cutter head, a drive gear, the first bearing, the second bearing, and drive teeth. One end of the drive belt is fitted with the output shaft of the drive motor, and the other end of the drive belt is fitted with drive teeth.

[0014] The active cutter head is provided with a protective baffle on the side away from the driven cutter head.

[0015] The beneficial effects of this utility model are as follows: The multifunctional hardware stretching and trimming device of this utility model is equipped with an active cutting blade assembly, a driven cutting blade assembly, and a first auxiliary assembly. These three components together restrict and fix the position of the material to be cut, thereby making the cut smoother and the cutting dimensions more accurate. Specifically, the active cutting blade assembly is equipped with an active blade head, the top of which has an annular support platform. The material to be cut is placed on the annular support platform, which is in contact with the bottom side of the material. The pressing ring of the driven cutting blade assembly is in contact with the top side of the material, forming a clamping and fixing structure. Simultaneously, the first auxiliary assembly is equipped with an upper auxiliary block, which is in contact with the top side of the material and positioned above the annular support platform. The upper auxiliary block and the annular support platform clamp the material to be cut, forming a clamping and fixing structure. These two clamping and fixing structures clamp and fix the material to be cut, preventing it from moving during the cutting process and keeping it relatively horizontal, resulting in a smoother cut and more accurate cutting dimensions. The equipment of this invention has low cost, universal molds, and no limit on the size of the processed products, making it more practical. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the multifunctional hardware stretching and trimming equipment of this utility model.

[0017] Figure 2 This is an assembly diagram of the active cutter assembly and the driven cutter assembly of this utility model.

[0018] Figure 3 This is another assembly diagram of the active cutter assembly and the driven cutter assembly of this utility model.

[0019] Figure 4 This is a schematic diagram of the active cutter assembly of this utility model.

[0020] Figure 5 This is an assembly diagram of the driven cutter assembly and the first auxiliary assembly of this utility model.

[0021] Figure 6 This is an exploded structural diagram of the driven cutter assembly of this utility model.

[0022] In the diagram: 1. Worktable; 2. Active cutting blade assembly; 21. Drive gear; 22. Active cutter head; 221. Annular support platform; 222. First shearing surface; 223. Second ring; 224. Protective baffle; 23. Drive assembly; 231. Drive motor; 232. Transmission belt; 233. Transmission shaft; 234. First bearing; 235. Second bearing; 236. Transmission gear;

[0023] 3. Driven cutter assembly; 31. Crankshaft; 311. First half-shaft; 312. Second half-shaft; 3121. Adjustment hole; 313. Pull rod; 32. Driven gear; 33. Driven cutter head; 331. Third ring; 332. Fourth ring; 333. Second shearing surface; 34. Pressing ring; 35. Sleeve; 36. Retaining ring; 37. Third bearing; 38. Fourth bearing;

[0024] 4. First auxiliary component; 41. Cantilever; 42. Upper auxiliary block; 5. Second auxiliary component; 51. First support member; 52. Second support member; 53. Roller. Detailed Implementation

[0025] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0026] Please see Figures 1-6This embodiment of a multifunctional hardware stretching and trimming device includes a worktable 1, an active cutting blade assembly 2 disposed on the worktable 1, a driven cutting blade assembly 3 disposed on the worktable 1, and a first auxiliary assembly 4 disposed on the driven cutting blade assembly 3. The active cutting blade assembly 2 includes a drive assembly 23 disposed on the worktable 1, a drive gear 21 disposed on the output end of the drive assembly 23, and an active cutting head 22. The active cutting head 22 is provided with an annular support platform 221, and a first shearing surface 222 is provided at one end of the annular support platform 221 near the drive assembly 23. The driven cutting blade assembly 3 includes a crankshaft 31 rotatably disposed on the worktable 1. The driven gear 32, driven cutter head 33, and pressing ring 34 are rotatably mounted on the crankshaft 31. The pressing ring 34 is arranged opposite to the annular support platform 221. The driven cutter head 33 is provided with a second shearing surface 333. The first shearing surface 222 is tangential to the second shearing surface 333. The driving gear 21 meshes with the driven gear 32. The first auxiliary component 4 includes a cantilever 41 rotatably mounted on the crankshaft 31 and an upper auxiliary block 42 mounted on the cantilever 41. The upper auxiliary block 42 is in contact with the top side of the material to be cut. The pressing ring 34 is in contact with the top side of the material to be cut. The annular support platform 221 is in contact with the bottom side of the material to be cut. The pressing ring 34 and the annular support platform 221 press against both sides of the material to be cut, thereby clamping and fixing the material. However, the pressing ring 34 can only press against the edge of the material. For materials with a large top side, deformation is likely to occur during the cutting process, affecting the cutting accuracy. The extended upper auxiliary block 42 can fit against the top side of the container and work with the annular support platform 221 to clamp and fix the material to be cut. The upper auxiliary block 42 and the pressing ring 34 form two fixing structures with the annular support platform 221, creating two fixing points for the container. This ensures that the container remains level and flat during the cutting process, thereby improving the flatness and dimensional accuracy of the cut. Specifically, the material to be cut is fastened onto the annular support platform 221, and the drive assembly 23 is activated, which moves the driven cutter assembly 3 closer to the active cutter assembly 2, causing the driven gear 32 to approach and get closer to the active gear 21. The active gear 21 meshes with the driven gear 32 and drives the driven gear 32 to rotate. The driven gear 32 drives the driven cutter head 33 to approach the active cutter head 22, while the active gear 21 drives the active cutter head 22 to approach the driven cutter head 33, so that the first shearing surface 222 approaches the second shearing surface 333 and cuts the material to be cut. Meanwhile, the pressing ring 34 is in contact with the top side of the material to be cut, and the annular support platform 221 is in contact with the bottom side of the material to be cut. The pressing ring 34 and the annular support platform 221 together form a clamping and fixing structure. The upper auxiliary block 42 extends out and is in contact with the top side of the material to be cut. Together with the annular support platform 221 below, it forms a clamping and fixing structure. The two clamping and fixing structures clamp and fix the material to be cut more firmly, making the cutting flat and accurate.

[0027] Please see Figures 1-4As shown, the multifunctional hardware stretching and trimming device of this embodiment also includes a second auxiliary component 5 disposed below the upper auxiliary block 42. The second auxiliary component 5 includes a first support member 51 and a second support member 52 disposed on the worktable 1, and a roller 53 rotatably disposed between the first support member 51 and the second support member 52. The height of the roller 53 is lower than the height of the annular support platform 221. The height of the second auxiliary component 5 is slightly lower than the height of the annular support platform 221 so that when the container is fastened to the annular support platform 221, the roller 53 can support the folded edge of the container and provide support for the container. At the same time, the upper auxiliary block 42 is attached to the top side of the container to restrict and fix the container, keeping the container in a relatively horizontal state. Meanwhile, the roller 53 can rotate, and the folded edge of the container can slide relative to the roller 53 during cutting, so that the roller can rotate when cutting the curved edge, keeping the container in a relatively horizontal state during cutting, improving the flatness and accuracy of cutting. Specifically, the two ends of the roller 53 are connected to the worktable 1 through the first support member 51 and the second support member 52.

[0028] Please see Figures 2-6 In this embodiment, the active cutter head 22 further includes a second ring portion 223 disposed at the bottom of the annular support platform 221. The diameter of the second ring portion 223 is smaller than the diameter of the annular support platform 221. The driven cutter head 33 includes a third ring portion 331 and a fourth ring portion 332. The diameter of the third ring portion 331 is larger than the diameter of the fourth ring portion 332. The second shearing surface 333 is disposed on the end face of the third ring portion 331 near the fourth ring portion 332. The third ring portion 331 is tangential to the second ring portion 223, and the fourth ring portion 332 is tangential to the annular support platform 221. The diameter of the annular support platform 221 is larger than the diameter of the second ring portion 223, and the diameter of the third ring portion 331 is larger than the diameter of the fourth ring portion 332, thereby forming a concave-convex fit structure, which helps to clamp and fix the material to be cut, making the cutting flatter and more accurate. During cutting, the material to be cut is placed between the active cutter assembly 2 and the driven cutter assembly 3, that is, between the first shearing surface 222 and the second front shearing surface. The drive assembly 23 is started, and the drive assembly 23 drives the active gear 21 and the active cutter head 22 to rotate. The active gear 21 drives the driven gear 32 to rotate, and the driven gear 32 drives the driven cutter head 33 to rotate, so that the first shearing surface 222 of the active cutter head 22 and the second shearing surface 333 of the driven cutter head 33 move closer to each other and cut the material to be cut.

[0029] Please see Figure 6In this embodiment, the crankshaft 31 includes a first half-shaft 311, a second half-shaft 312, and a lever 313 disposed on the second half-shaft 312. The first half-shaft 311 has a first axis, and the second half-shaft 312 has a second axis. The first axis and the second axis are offset, and the rotation center of the second half-shaft 312 coincides with the first axis. A driven cutter head 33, a driven gear 32, and a pressing ring 34 are disposed on the second half-shaft 312, and the axes of the driven cutter head 33, the driven gear 32, and the pressing ring 34 coincide with the second axis. The first axis of the first half-shaft 311 and the second axis of the second half-shaft 312 are offset. With the first axis as the rotation center, the lever 313 is swung to make the second half-shaft 312 move in an arc with the first axis as the center, thereby moving the second half-shaft 312 away from or closer to the active cutter assembly 2, thereby controlling the shearing or releasing. Preferably, the second axis is positioned between the first axis and the lever 313, thereby making the torque of the lever 313 greater than the torque of the second half-shaft 312, forming a force-saving structure and making manual operation less strenuous. In this embodiment, the lever 313 is used in conjunction with the crankshaft 31 to drive the driven cutter head 33, which has a larger torque than the linear drive assembly 23, resulting in a greater cutting force and a wider range of applications.

[0030] Please see Figure 6 In this embodiment, the second half-shaft 312 is provided with a plurality of adjustment holes 3121 along the circumferential direction, and the lever 313 is installed in the adjustment holes 3121. The plurality of adjustment holes 3121 are arranged in different directions, which can adjust the angle of the lever 313, making rotation easier.

[0031] Please see Figure 5 and Figure 6 The driven cutter assembly 3 in this embodiment also includes a sleeve 35 rotatably fitted onto the second half-shaft 312 and a retaining ring 36 disposed on the sleeve. One end of the sleeve is provided with a retaining ring, and the outer surface of the other end of the sleeve is provided with an external thread. The inner surface of the retaining ring 36 is provided with an internal thread, and the internal thread and the external thread are engaged and connected. The driven gear 32, the driven cutter head 33, and the pressing ring 34 are sequentially fitted onto the sleeve 35. The retaining ring 36 and the sleeve 35 are connected by threads, thereby realizing the fixing and loosening of the driven gear 32, the driven cutter head 33, and the pressing ring 34, which facilitates installation and disassembly. Specifically, the retaining ring 36 is loosened from the sleeve 35, and the driven gear 32, driven cutter head 33, and pressing ring 34 are sequentially fitted onto the sleeve 35. The retaining ring 36 is placed above the pressing ring 34 and screwed onto the sleeve 35, thereby fixing the driven gear 32, driven cutter head 33, pressing ring 34, and sleeve 35 together, allowing the entire assembly to rotate relative to the second half-shaft 312. Preferably, the driven gear 32 and driven cutter head 33 can be directly fixedly connected, or they can be fixedly connected to the sleeve 35, with the sleeve 35 rotatably connected to the second half-shaft 312.

[0032] Please see Figure 5 and Figure 6The driven cutter assembly 3 in this embodiment also includes a third bearing 37 and a fourth bearing 38, with the first half-shaft 311 passing through the third bearing 37 and the fourth bearing 38. Having two bearings better secures the first half-shaft 311, providing stability and preventing movement during cutting, thus improving cutting accuracy.

[0033] Please see Figures 2-4 The drive assembly 23 in this embodiment includes a drive motor 231, a transmission belt 232, a transmission shaft 233, a first bearing 234, a second bearing 235, and transmission gears 236. The transmission shaft 233 sequentially passes through an active cutter head 22, an active gear 21, the first bearing 234, the second bearing 235, and the transmission gears 236. One end of the transmission belt 232 is fitted with the output shaft of the drive motor 231, and the other end is fitted with the transmission gears 236. The drive assembly 23 has two bearings, which provides good axial stability to the transmission shaft 233, preventing deviation even under significant shearing forces and improving cutting accuracy. The drive motor 231 transmits power via the transmission belt 232. Under overload conditions, slippage may occur between the transmission belt 232 and the transmission gears 236, maintaining the normal movement of the drive motor 231 and preventing it from burning out.

[0034] Please see Figures 1-3 In this embodiment, the active cutter head 22 is provided with a protective baffle 224 on the side away from the driven cutter head 33. The protective baffle 224 is located on the side of the human body to prevent the residual material generated during cutting from splashing out and injuring the operator, thereby playing a protective role.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A multi-functional hardware stretch part trimming apparatus, characterized by: The device includes a worktable, an active cutter assembly mounted on the worktable, a driven cutter assembly mounted on the worktable, and a first auxiliary assembly mounted on the driven cutter assembly. The active cutter assembly includes a drive assembly mounted on the worktable, a drive gear and an active cutter head mounted on the output end of the drive assembly. The active cutter head has an annular support platform, and a first shearing surface is provided at one end of the annular support platform near the drive assembly. The driven cutter assembly includes a crankshaft rotatably mounted on the worktable, a driven gear rotatably mounted on the crankshaft, a driven cutter head, and a pressing ring. The pressing ring is disposed opposite to the annular support platform. The driven cutter head has a second shearing surface, and the first shearing surface is tangential to the second shearing surface. The drive gear meshes with the driven gear. The first auxiliary assembly includes a cantilever rotatably mounted on the crankshaft and an upper auxiliary block mounted on the cantilever. The upper auxiliary block is in contact with the top side of the material to be cut, the pressing ring is in contact with the top side of the material to be cut, and the annular support platform is in contact with the bottom side of the material to be cut.

2. The multi-functional hardware stretchier trimming apparatus of claim 1, wherein: The multifunctional hardware stretching and trimming equipment also includes a second auxiliary component located below the upper auxiliary block. The second auxiliary component includes a first support member, a second support member, and a roller rotatably disposed between the first support member and the second support member on the worktable. The height of the roller is lower than the height of the annular support platform.

3. The multi-functional hardware stretchier trimming apparatus of claim 1, wherein: The active cutter head also includes a second ring portion disposed at the bottom of the annular support platform. The diameter of the second ring portion is smaller than the diameter of the annular support platform. The driven cutter head includes a third ring portion and a fourth ring portion. The diameter of the third ring portion is larger than the diameter of the fourth ring portion. The second shearing surface is disposed at one end face of the third ring portion near the fourth ring portion. The third ring portion is tangent to the second ring portion, and the fourth ring portion is tangent to the annular support platform.

4. The multi-functional hardware stretchier trimming apparatus of claim 3, wherein: The crankshaft includes a first half-shaft, a second half-shaft, and a lever disposed on the second half-shaft. The first half-shaft has a first axis, and the second half-shaft has a second axis. The first axis and the second axis are offset from each other. The rotation center of the second half-shaft coincides with the first axis. A driven cutter head, a driven gear, and a pressing ring are disposed on the second half-shaft. The axes of the driven cutter head, the driven gear, and the pressing ring coincide with the second axis.

5. The multi-functional hardware stretch trim device of claim 4, wherein: The second half-shaft is provided with several adjustment holes along the circumferential direction, and the pull rod is installed in the adjustment holes.

6. The multi-functional hardware stretchier trimming apparatus of claim 4, wherein: The driven cutter assembly also includes a sleeve rotatably fitted onto the second half-shaft and a fixing ring disposed on the sleeve. One end of the sleeve is provided with a retaining ring, and the outer surface of the other end of the sleeve is provided with an external thread. The inner side of the fixing ring is provided with an internal thread, and the internal thread and the external thread are connected in a mating connection. The driven gear, the driven cutter head, and the pressing ring are sequentially fitted onto the sleeve.

7. The multi-functional hardware stretchier trimming apparatus of claim 6, wherein The driven cutter assembly further includes a third bearing and a fourth bearing, with the first half-shaft passing through the third bearing and the fourth bearing.

8. The multi-functional hardware stretchier trimming apparatus of claim 1, wherein: The drive assembly includes a drive motor, a drive belt, a drive shaft, a first bearing, a second bearing, and drive teeth. The drive shaft is sequentially fitted with a drive cutter head, a drive gear, the first bearing, the second bearing, and drive teeth. One end of the drive belt is fitted with the output shaft of the drive motor, and the other end of the drive belt is fitted with drive teeth.

9. The multi-functional hardware stretchier trimming apparatus of claim 1 wherein The active cutter head is provided with a protective baffle on the side away from the driven cutter head.

Images