Adjustable die cutting die
The adjustable die cavity cutting mold solves the problem of increased production costs associated with using multiple molds. It enables adjustment of the die cutting cavity and the lateral movement of the cutting blade, meeting the cutting needs of products of different specifications, reducing the factory's mold opening costs, and improving cutting stability and effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN HENGZHIDE PRECISION MOULD CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-21
AI Technical Summary
The use of multiple shearing dies in existing technologies increases factory production costs.
We provide cutting dies with adjustable cavities. Through the combination of components such as die base, adjusting block, rotating screw and bevel gear, we can adjust the cutting cavity of the die and adjust the lateral movement of the cutter to meet the cutting needs of products of different specifications.
It reduces the number of cutting dies used, lowers the mold-making cost for the factory, increases the profit of workpiece production and processing, and improves the stability and effectiveness of cutting.
Smart Images

Figure CN224525739U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an adjustable cutting mold, specifically a cutting mold with an adjustable mold cavity, belonging to the field of cutting mold technology. Background Technology
[0002] Cutting dies belong to the blanking die category in stamping dies. They separate sheet metal along open or closed contour lines by applying shearing force. Their core function is to complete the cutting of sheet metal with non-closed contours. Together with blanking dies and punching dies, they form the basic units of the blanking process. Among them, cutting dies, as an important branch of the separation process, exist at the first level of process nature classification.
[0003] The utility model patent CN220094698U relates to the field of mold technology, specifically to a cutting mold, including a base, a support column at the upper end of the base, a tray at the upper end of the support column, an installation groove at the upper end of the base, and a collection groove at the lower left side of the base. This utility model facilitates automatic cutting of compressed materials, improves cutting stability, and allows for preliminary cleaning of the inserted blade, preventing debris from contaminating the cut surface during blade return.
[0004] During workpiece processing, cutting dies are used to cut the corresponding material from the surface of the sheet metal according to the processing dimensions. Although the shearing die in the aforementioned patent improves the stability of cutting, different dies are required when cutting products of different specifications. Since the mold opening cost is high, using multiple sets of shearing dies will increase the product production cost. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] The purpose of this invention is to provide a cutting die with an adjustable cavity to solve the above-mentioned problems, thereby addressing the issue that the use of multiple shearing dies in the prior art increases factory production costs.
[0007] (II) Technical Solution
[0008] This utility model is achieved through the following technical solution: a cutting mold with an adjustable cavity.
[0009] The device includes a mold frame, which has a lower mold mechanism and an upper mold mechanism inside. The lower mold mechanism includes a mold base fixedly connected to the mold frame. An adjusting block is slidably connected inside the mold base. A protective cover is fixedly connected to the surface of the adjusting block and is slidably connected to the mold base. The upper mold mechanism includes a fixed frame and an adjusting cutter, and the fixed frame is fixedly connected to the mold frame.
[0010] Preferably, the mold base has a positioning groove inside, and the adjusting block is slidably connected to the positioning groove. A connecting rod is slidably connected to the bottom of the mold base, and the two ends of the connecting rod are fixedly connected to the adjusting block and the protective cover, respectively. The adjusting block is fixed by the positioning groove, thereby improving the stability of the adjusting block sliding laterally inside the mold base.
[0011] Preferably, a driven sprocket is rotatably connected to the middle of the mold base. A rotating screw is threaded inside the driven sprocket, and the two ends of the rotating screw are fixedly connected to the adjusting block and the protective cover, respectively. By rotating the driven sprocket, the rotating screw drives the adjusting block to move laterally, thereby adjusting the position of the adjusting block and improving the stability of the mold cutting cavity adjustment.
[0012] Preferably, the mold base is rotatably connected to a rotating shaft, and a transmission sprocket is fixedly connected to the surface of the rotating shaft. The transmission sprocket and the driven sprocket are connected by a chain drive. The rotation of the transmission sprocket is controlled by the rotating shaft, and the transmission sprocket drives the driven sprocket to rotate synchronously through the chain, thereby improving the stability of the driven sprocket's rotation.
[0013] Preferably, a bevel gear one is fixedly connected to the middle of the rotating shaft, and a bevel gear two is meshed with the bevel gear one. The bevel gear two is rotatably connected to the mold base, and a hexagonal block is fixedly connected to the other end of the bevel gear two. By using a power wrench to control the rotation of the hexagonal block, the hexagonal block drives the bevel gear two to rotate, and the rotating shaft is controlled to rotate by the bevel gear one.
[0014] Preferably, the fixed frame is internally rotatably connected to a bidirectional screw, and the surface of the bidirectional screw is threaded with a sliding block. The sliding block is slidably connected to the fixed frame, and the bottom end of the sliding block is fixedly connected to the adjusting cutter. By using a power wrench to control the rotation of the hexagonal block, the hexagonal block drives the bidirectional screw to rotate, causing the sliding block to drive the adjusting cutter to move laterally, adjusting the distance between the two adjusting cutters, thereby meeting the cutting requirements of products of different sizes.
[0015] Preferably, a shearing base is fixedly connected to the middle of the fixing frame, and the side of the shearing base is on the same plane as the side of the fixing frame. Side shearing blades are provided on both sides of the shearing base. The side of the product is cut by the shearing base and the side shearing blades, which reduces the generation of burrs on the product surface and improves the product cutting effect.
[0016] Preferably, the bottom of the shearing base is provided with a connecting groove, and a positioning slide rod is fixedly connected to the surface of the adjusting cutter. The positioning slide rod is slidably connected to the connecting groove. The adjusting cutter and the shearing base are assembled together through the connecting groove and the positioning slide rod, thereby improving the stability of the product being cut by the adjusting cutter.
[0017] This utility model provides a cutting die with an adjustable cavity, which has the following beneficial effects:
[0018] 1. This adjustable cutting die uses a die base to position the adjusting blocks. By adjusting the positions of the two adjusting blocks, a cutting cavity is formed inside the die base. The size of the cutting cavity can be adjusted by moving the adjusting blocks laterally, reducing the number of cutting dies used and the number of dies opened during workpiece cutting production. This reduces the burden of cutting dies on the factory and increases the profit of workpiece production. The adjustable cutter is fixed by a fixing frame. By adjusting the cutter's up and down movement, it cuts the sheet metal on the die base surface. Furthermore, by adjusting the cutter laterally, it keeps the adjustable cutter adapted to the die cutting cavity, meeting the cutting needs of workpieces of different specifications.
[0019] 2. This adjustable cutting die uses a positioning groove to fix the adjusting block, improving the stability of the adjusting block sliding laterally inside the die base. A connecting rod connects the adjusting block and the bottom of the protective cover together, improving the stability of the device. The rotation of the driven sprocket causes the rotating screw to move the adjusting block laterally, adjusting the position of the adjusting block and improving the stability of the die cutting cavity adjustment. The rotation of the transmission sprocket is controlled by the rotating shaft, and the transmission sprocket drives the driven sprocket to rotate synchronously via the chain, improving the stability of the driven sprocket rotation.
[0020] 3. This adjustable cutting mold uses a power wrench to control the rotation of a hexagonal block, which in turn drives a second bevel gear to rotate. The first bevel gear then controls the rotation of a rotating shaft. The power wrench again controls the rotation of the hexagonal block, which in turn drives a bidirectional screw to rotate. This causes a sliding block to move the adjusting cutter laterally, adjusting the distance between the two cutting cutters to meet the cutting needs of products of different sizes. The shearing base and side shearing cutter cut the sides of the product, reducing surface burrs and improving the cutting effect. A connecting groove and a positioning slide rod assemble the adjusting cutter with the shearing base, improving the stability of the cutting process. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a cross-sectional view of the mold base of this utility model;
[0023] Figure 3 This is a schematic diagram of the lower mold mechanism of this utility model;
[0024] Figure 4 This is a cross-sectional view of the fixing frame of this utility model;
[0025] Figure 5 This is a schematic diagram of the bottom structure of the shear base of this utility model.
[0026] [Explanation of Key Component Symbols]
[0027] 1. Mold frame;
[0028] 2. Lower mold mechanism; 201. Mold base; 202. Adjusting block; 203. Positioning groove; 204. Protective cover; 205. Connecting rod; 206. Rotating shaft; 207. Transmission sprocket; 208. Rotating screw; 209. Driven sprocket; 210. Bevel gear one; 211. Bevel gear two;
[0029] 3. Upper mold mechanism; 301. Fixing frame; 302. Shearing base; 303. Two-way screw; 304. Sliding block; 305. Adjusting cutter; 306. Connecting groove; 307. Positioning slide bar; 308. Side shearing blade. Detailed Implementation
[0030] This utility model provides a cutting die with an adjustable cavity.
[0031] Example 1:
[0032] Please see Figure 1 , Figure 2 and Figure 3 The system includes a mold frame 1, which contains a lower mold mechanism 2 and an upper mold mechanism 3. The lower mold mechanism 2 includes a mold base 201 fixedly connected to the mold frame 1. An adjusting block 202 is slidably connected inside the mold base 201. A protective cover 204 is fixedly connected to the surface of the adjusting block 202 and is slidably connected to the mold base 201. The adjusting block 202 is positioned by the mold base 201. By adjusting the positions of the two adjusting blocks 202, a mold cutting cavity is formed inside the mold base 201. The size of the mold cutting cavity can be adjusted by moving the adjusting block 202 laterally. This reduces the number of cutting molds used, reduces the number of molds opened during workpiece cutting production, reduces the burden of cutting molds on the factory, and increases the profit of workpiece production and processing.
[0033] The mold base 201 has a positioning groove 203 inside, and the adjusting block 202 is slidably connected to the positioning groove 203. The bottom of the mold base 201 is slidably connected to a connecting rod 205, and the two ends of the connecting rod 205 are fixedly connected to the adjusting block 202 and the protective cover 204 respectively. The adjusting block 202 is fixed by the positioning groove 203, which improves the stability of the adjusting block 202 sliding laterally inside the mold base 201. The bottom of the adjusting block 202 and the protective cover 204 are connected together by the connecting rod 205, which improves the stability of the device.
[0034] Example 2:
[0035] Please refer to it again. Figure 2 and Figure 3 A driven sprocket 209 is rotatably connected to the middle of the mold base 201. A rotating screw 208 is threadedly connected to the inside of the driven sprocket 209. The two ends of the rotating screw 208 are fixedly connected to the adjusting block 202 and the protective cover 204, respectively. By rotating the driven sprocket 209, the rotating screw 208 drives the adjusting block 202 to move laterally, thereby adjusting the position of the adjusting block 202 and improving the stability of the mold cutting cavity adjustment.
[0036] The mold base 201 is internally connected to a rotating shaft 206. A transmission sprocket 207 is fixedly connected to the surface of the rotating shaft 206. The transmission sprocket 207 and the driven sprocket 209 are connected by a chain drive. The rotating shaft 206 controls the rotation of the transmission sprocket 207. The transmission sprocket 207 drives the driven sprocket 209 to rotate synchronously via the chain, thereby improving the stability of the rotation of the driven sprocket 209.
[0037] A bevel gear 210 is fixedly connected to the middle of the rotating shaft 206. The bevel gear 210 is meshed with a bevel gear 211. The bevel gear 211 is rotatably connected to the mold base 201. A hexagonal block is fixedly connected to the other end of the bevel gear 211. By using a power wrench to control the rotation of the hexagonal block, the hexagonal block drives the bevel gear 211 to rotate, and the rotating shaft 206 is controlled to rotate by the bevel gear 210.
[0038] Example 3:
[0039] Please refer to it again. Figure 1 , Figure 4 and Figure 5 The upper mold mechanism 3 includes a fixed frame 301 and an adjustable cutter 305. The fixed frame 301 is fixedly connected to the mold frame 1. The adjustable cutter 305 is fixed by the fixed frame 301. The adjustable cutter 305 moves up and down to cut the plate material on the surface of the mold base 201. The adjustable cutter 305 is adjusted laterally to keep it adapted to the mold cutting cavity, so as to meet the cutting requirements of workpieces of different specifications.
[0040] The fixed frame 301 is internally rotatably connected to a bidirectional screw 303. One end of the bidirectional screw 303 is fixedly connected to a hexagonal block. The surface of the bidirectional screw 303 is threadedly connected to a sliding block 304. The sliding block 304 is slidably connected to the fixed frame 301, and the bottom end of the sliding block 304 is fixedly connected to an adjusting cutter 305. By using a power wrench to control the rotation of the hexagonal block, the hexagonal block drives the bidirectional screw 303 to rotate, causing the sliding block 304 to drive the adjusting cutter 305 to move laterally, adjusting the distance between the two adjusting cutters 305, thereby meeting the cutting requirements of products of different sizes.
[0041] A shearing base 302 is fixedly connected to the middle of the fixed frame 301, and the side of the shearing base 302 is on the same plane as the side of the fixed frame 301. Side shearing blades 308 are provided on both sides of the shearing base 302. The side of the product is cut by the shearing base 302 and the side shearing blades 308, reducing the generation of burrs on the product surface and improving the cutting effect of the product.
[0042] The bottom of the shearing base 302 is provided with a connecting groove 306. The surface of the adjusting cutter 305 is fixedly connected with a positioning slide rod 307, and the positioning slide rod 307 is slidably connected to the connecting groove 306. The adjusting cutter 305 and the shearing base 302 are assembled together through the connecting groove 306 and the positioning slide rod 307, thereby improving the stability of the product being cut by the adjusting cutter 305.
[0043] In use, this utility model works as follows: The size of the mold cutting cavity is determined according to product processing requirements. A power wrench controls the rotation of the hexagonal block, causing the hexagonal block to drive the second bevel gear 211 to rotate. The first bevel gear 210 controls the rotation of the rotating shaft 206, which in turn controls the rotation of the transmission sprocket 207. The transmission sprocket 207, via a chain, drives the driven sprocket 209 to rotate synchronously. The rotation of the driven sprocket 209 causes the rotating screw 208 to move the adjusting block 202 laterally, adjusting the two adjusting blocks 202 to a suitable distance. Then, the power wrench controls the rotation of the hexagonal block, causing the hexagonal block to drive the bidirectional screw 303 to rotate, thus moving the sliding block 304... The adjustable cutter 305 moves laterally, adjusting the two adjustable cutters 305 to a suitable distance. Then, the sheet material is placed on the surface of the mold base 201. The top of the mold frame 1 is driven by external power to move the fixed frame 301 downward. The product is cut by adjusting the cutter 305 and the side shearing blade 308. When different sizes of products need to be cut, the lateral movement of the adjusting block 202 and the lateral movement of the adjustable cutter 305 are controlled to meet the cutting needs of different specifications of workpieces. This reduces the number of cutting molds used, reduces the number of molds opened during workpiece cutting production, reduces the burden of cutting molds on the factory, and increases the profit of workpiece production and processing.
[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cutting die with adjustable cavity, comprising a die holder (1), characterized in that: The mold frame (1) is provided with a lower mold mechanism (2) and an upper mold mechanism (3). The lower mold mechanism (2) includes a mold base (201) fixedly connected to the mold frame (1). An adjusting block (202) is slidably connected inside the mold base (201). A protective cover (204) is fixedly connected to the surface of the adjusting block (202), and the protective cover (204) is slidably connected to the mold base (201). The upper mold mechanism (3) includes a fixing frame (301) and an adjusting cutter (305), and the fixing frame (301) is fixedly connected to the mold frame (1).
2. The adjustable-cavity cutting die according to claim 1, characterized in that: The mold base (201) has a positioning groove (203) inside, and the adjusting block (202) is slidably connected to the positioning groove (203). The bottom of the mold base (201) is slidably connected to a connecting rod (205), and the two ends of the connecting rod (205) are fixedly connected to the adjusting block (202) and the protective cover (204) respectively.
3. The adjustable-cavity cutting die according to claim 1, characterized in that: The mold base (201) is rotatably connected to a driven sprocket (209) in the middle. The driven sprocket (209) is internally threaded with a rotating screw (208), and the two ends of the rotating screw (208) are fixedly connected to the adjusting block (202) and the protective cover (204) respectively.
4. The adjustable-cavity cutting die according to claim 3, characterized in that: The mold base (201) is rotatably connected to a rotating shaft (206), and a transmission sprocket (207) is fixedly connected to the surface of the rotating shaft (206). The transmission sprocket (207) and the driven sprocket (209) are connected by chain drive.
5. The adjustable-cavity cutting die according to claim 4, characterized in that: A bevel gear one (210) is fixedly connected to the middle of the rotating shaft (206), and a bevel gear two (211) is meshed with the bevel gear one (210). The bevel gear two (211) is rotatably connected to the mold base (201), and a hexagonal block is fixedly connected to the other end of the bevel gear two (211).
6. The adjustable-cavity cutting die according to claim 1, characterized in that: The fixed frame (301) is internally rotatably connected to a bidirectional screw (303), and a sliding block (304) is threadedly connected to the surface of the bidirectional screw (303). The sliding block (304) is slidably connected to the fixed frame (301), and the bottom end of the sliding block (304) is fixedly connected to the adjusting cutter (305).
7. The adjustable-cavity cutting die according to claim 1, characterized in that: The middle part of the fixed frame (301) is fixedly connected to the shearing base (302), and the side of the shearing base (302) and the side of the fixed frame (301) are located on the same plane. Side shearing blades (308) are provided on both sides of the shearing base (302).
8. The adjustable-cavity cutting die according to claim 7, characterized in that: The bottom of the shearing base (302) is provided with a connecting groove (306), and the surface of the adjusting cutter (305) is fixedly connected with a positioning slide rod (307), and the positioning slide rod (307) is slidably connected to the connecting groove (306).