A die cutting mold

Abstract

The utility model discloses a punching die belongs to automatic mould technical field, including upper base plate and lower base plate, upper base plate bottom is provided with a plurality of upper mould, lower base plate top is provided with a plurality of lower mould, upper mould and lower mould number and position one -to -one correspondence, lower mould top is provided with ring groove, and the movable element is arranged in the ring groove, when upper mould and lower mould close each other, the movable element moves a certain distance downward, is used for cutting work piece, upper mould bottom is provided with the mounting groove, and the pressing plate is arranged in the mounting groove, and the height of pressing plate is greater than the depth of mounting groove. The utility model has the beneficial effects that through setting ring groove in lower mould and setting guide rod in the ring groove, the guide rod is slidably connected with the movable element, the work piece is placed above the movable element, the pressing plate is installed to the upper mould, when the upper mould and lower mould close, the work piece around the burr is pressed, and the movable element is pressed downward by the pressing plate, the edge of the ring groove is used as the cutter to cut off the burr as a whole, and the subsequent cleaning is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of automated mold technology, and in particular relates to a punching mold. Background Technology

[0002] In the manufacturing process of packaging products such as lunch boxes, after the workpiece is initially formed, a secondary blanking process is required to remove the burrs around the workpiece. A common method for this secondary blanking process is ring cutting. First, the workpiece is fixed in the designated position of the lower die. The stamping equipment presses the upper die downwards, and the ring-shaped blade connected to the upper die cuts off the burrs around the workpiece. After cutting, the workpiece is transferred and the removed burrs are cleaned before a new workpiece is placed in for the next blanking cycle. However, the burrs removed using this method often break and are incomplete, making burr cleaning inconvenient and sometimes even leaving residue on the die, interfering with the blanking of the next workpiece and affecting the product yield and blanking efficiency. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a punching die that can completely remove the burrs around the workpiece and avoid burr residue.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a punching die, including an upper base plate and a lower base plate, wherein a plurality of upper dies are provided at the bottom of the upper base plate and a plurality of lower dies are provided at the top of the lower base plate, wherein the number and position of the upper dies and the lower dies correspond one-to-one, and an annular groove is provided at the top of the lower die, wherein a movable part is provided in the annular groove, wherein when the upper dies and the lower dies are closed to each other, the movable part moves downward a certain distance for cutting the workpiece.

[0005] Optionally, the bottom of the upper mold is provided with an installation groove, and a pressure plate is provided in the installation groove, the height of which is greater than the depth of the installation groove.

[0006] Optionally, the bottom of the pressure plate is provided with a cavity, which is used to insert a workpiece when the upper mold and the lower mold are closed.

[0007] Optionally, the shape of the pressure plate is the same as that of the annular groove, and when the upper mold and the lower mold are closed, the outer peripheral sidewall of the pressure plate is tightly fitted with the inner wall of the annular groove.

[0008] Optionally, the movable component includes a ring plate, and a plurality of springs are provided at the bottom of the ring plate. When the upper mold and the lower mold are closed, the springs are compressed, and when the upper mold and the lower mold are separated, the springs are used to reset the ring plate.

[0009] Optionally, a guide rod is provided in the annular groove, and a guide hole is provided in the annular plate, with the annular plate and the guide rod being slidably connected.

[0010] Optionally, the top of the ring plate is provided with a protrusion, which is used to support the workpiece.

[0011] Optionally, the upper substrate has several upper docking posts at the bottom of both sides, and the lower substrate has several lower docking posts at the top of both sides, with the number and position of the upper and lower docking posts corresponding one-to-one.

[0012] Optionally, the bottom of the lower substrate is provided with a plurality of support portions, which are arranged in parallel at intervals.

[0013] Optionally, a mounting post is provided on the top of the upper substrate, and the mounting post is used to connect to the stamping equipment.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: 1. By opening an annular groove in the lower mold and setting a guide rod in the annular groove, the guide rod is slidably connected to the movable part. The workpiece is placed above the movable part, and a pressure plate is installed in the upper mold. When the upper mold and the lower mold are closed, the burrs around the workpiece are pressed down. At the same time, the pressure plate presses the movable part down, and the edge of the annular groove is used as a cutter to remove the burrs as a whole, which is convenient for subsequent cleaning.

[0015] 2. By opening a cavity at the bottom of the pressure plate and setting a protrusion at the top of the ring plate, the workpiece shape can be adapted for fixing, avoiding workpiece displacement during the punching process. The pressure plate and ring plate are easy to disassemble and assemble, and the corresponding pressure plate and ring plate can be replaced according to different product shapes, thereby improving equipment utilization. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model. Figure 2 The diagram shown is a schematic representation of the overall structure of the upper mold of this utility model. Figure 3 The diagram shown is a structural schematic of the pressure plate of this utility model; Figure 4 The diagram shown is a schematic representation of the overall structure of the lower mold of this utility model. Figure 5 The image shown is an enlarged schematic diagram of the lower mold of this utility model; Figure 6 The diagram shown is a disassembly diagram of the lower mold of this utility model; Figure 7 The diagram shown is a structural schematic of the movable component of this utility model.

[0017] In the figure: 1. Upper substrate; 2. Lower substrate; 101. Upper docking post; 201. Lower docking post; 202. Support part; 3. Upper mold; 301. Mounting groove; 302. Pressure plate; 303. Cavity; 4. Lower mold; 401. Annular groove; 402. Moving part; 4021. Annular plate; 4022. Spring; 4023. Guide hole; 4024. Protrusion; 403. Guide rod; 10. Mounting post. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1 Reference Figures 1-7 This embodiment provides a punching die, specifically including an upper base plate 1 and a lower base plate 2. The bottom of the upper base plate 1 is provided with a plurality of upper dies 3, and the top of the lower base plate 2 is provided with a plurality of lower dies 4. The number and position of the upper dies 3 and the lower dies 4 correspond one-to-one. The top of the lower die 4 is provided with an annular groove 401, and a movable part 402 is provided in the annular groove 401. When the upper dies 3 and the lower dies 4 are closed to each other, the movable part 402 moves downward a certain distance for cutting the workpiece.

[0022] There are four upper dies 3 and four lower dies 4. The workpiece is placed on top of the movable part 402, and the downward movement of the movable part 402 constitutes the punching action. Both the upper die 3 and the lower die 4 are connected to the upper base plate 1 and the lower base plate 2 respectively by bolts. The upper die 3 has sliding rods at its four corners, and the lower die 4 has sliding holes at its four corners that cooperate with the sliding rods. The specific structure of the top of the upper die 3 and the connection between the upper die 3 and the upper base plate 1 is a common structure in the art and will not be described in detail here.

[0023] Example 2 This embodiment provides a punching die, which differs from the first embodiment in that the bottom of the upper die 3 is provided with an installation groove 301, and a pressure plate 302 is provided in the installation groove 301. The height of the pressure plate 302 is greater than the depth of the installation groove 301.

[0024] The bottom of the pressure plate 302 has a cavity 303. When the upper mold 3 and the lower mold 4 are closed, the cavity 303 is used to insert the workpiece.

[0025] The shape of the pressure plate 302 is the same as that of the annular groove 401. When the upper mold 3 and the lower mold 4 are closed, the outer peripheral sidewall of the pressure plate 302 is tightly fitted with the inner wall of the annular groove 401.

[0026] The movable component 402 includes a ring plate 4021, and a plurality of springs 4022 are provided at the bottom of the ring plate 4021. When the upper mold 3 and the lower mold 4 are closed, the springs 4022 are compressed. When the upper mold 3 and the lower mold 4 are separated, the springs 4022 are used to reset the ring plate 4021.

[0027] A guide rod 403 is provided inside the annular groove 401, and a guide hole 4023 is provided in the annular plate 4021. The annular plate 4021 is slidably connected to the guide rod 403.

[0028] The top of the ring plate 4021 is provided with a protrusion 4024, which is used to support the workpiece.

[0029] The upper substrate 1 has several upper docking posts 101 at the bottom of both sides, and the lower substrate 2 has several lower docking posts 201 at the top of both sides. The number and position of the upper docking posts 101 and the lower docking posts 201 correspond one-to-one.

[0030] The bottom of the lower substrate 2 is provided with a plurality of support portions 202, which are arranged in parallel at intervals.

[0031] The top of the upper substrate 1 is provided with a mounting post 10, which is used to connect to the stamping equipment.

[0032] When the pressure plate 302 is connected to the mounting groove 301, the bottom of the pressure plate 302 is located outside the mounting groove 301, that is, the height of the plane where the bottom of the pressure plate 302 is located is lower than the height of the groove opening of the mounting groove 301.

[0033] When the upper mold 3 and the lower mold 4 are closed, the pressure plate 302 presses the movable part 402 downward. At this time, the inner wall of the annular groove 401 and the outer peripheral side wall of the pressure plate 302 serve as two cutting surfaces.

[0034] The shape of the cavity 303 is adapted to the shape of the top of the workpiece, and the shape of the protrusion 4024 is adapted to the shape of the bottom of the workpiece. A wedge block for supplementing the insert after wire cutting the wire inlet hole is also provided in the annular groove 401.

[0035] In use, first connect the mounting column 10 to the stamping equipment. The robot moves multiple workpieces to the designated position of the lower die 4. Start the stamping equipment to press the upper base plate 1 and multiple upper dies 3 downward. When the upper die 3 and lower die 4 are completely closed, the burrs around the workpiece are pressed down. The pressure plate 302 presses the movable part 402 downward as a whole, thereby completing the cutting action. Afterward, the stamping equipment raises the upper die 3 to return to the initial position. The robot transfers the stamped workpiece, and then uses the air pump on one side to blow the burrs out of the die area, thereby cleaning the cut burrs, and then performing the next stamping.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A punching die, characterized in that, The system includes an upper substrate (1) and a lower substrate (2). The bottom of the upper substrate (1) is provided with a plurality of upper molds (3), and the top of the lower substrate (2) is provided with a plurality of lower molds (4). The number and position of the upper molds (3) and the lower molds (4) correspond one-to-one. The top of the lower molds (4) is provided with an annular groove (401), and a movable part (402) is provided in the annular groove (401). When the upper molds (3) and the lower molds (4) are closed to each other, the movable part (402) moves downward a certain distance to cut the workpiece.

2. The punching die according to claim 1, characterized in that, The upper mold (3) has an installation groove (301) at the bottom, and a pressure plate (302) is provided in the installation groove (301). The height of the pressure plate (302) is greater than the depth of the installation groove (301).

3. The punching die according to claim 2, characterized in that, The bottom of the pressure plate (302) has a cavity (303). When the upper mold (3) and the lower mold (4) are closed, the cavity (303) is used to place the workpiece.

4. The punching die according to claim 2, characterized in that, The shape of the pressure plate (302) is the same as that of the annular groove (401). When the upper mold (3) and the lower mold (4) are closed, the outer peripheral sidewall of the pressure plate (302) is tightly fitted with the inner wall of the annular groove (401).

5. The punching die according to claim 1, characterized in that, The movable part (402) includes a ring plate (4021), and a plurality of springs (4022) are provided at the bottom of the ring plate (4021). When the upper mold (3) and the lower mold (4) are closed, the springs (4022) are compressed. When the upper mold (3) and the lower mold (4) are separated, the springs (4022) are used to reset the ring plate (4021).

6. The punching die according to claim 5, characterized in that, A guide rod (403) is provided in the annular groove (401), and a guide hole (4023) is provided in the annular plate (4021). The annular plate (4021) and the guide rod (403) are slidably connected.

7. The punching die according to claim 6, characterized in that, The top of the ring plate (4021) is provided with a protrusion (4024), which is used to support the workpiece.

8. The punching die according to claim 1, characterized in that, The upper substrate (1) has several upper docking posts (101) at the bottom of both sides, and the lower substrate (2) has several lower docking posts (201) at the top of both sides. The number and position of the upper docking posts (101) and the lower docking posts (201) correspond one-to-one.

9. The punching die according to claim 8, characterized in that, The bottom of the lower substrate (2) is provided with a plurality of support portions (202), which are arranged in parallel at intervals.

10. The punching die according to claim 1, characterized in that, The top of the upper substrate (1) is provided with a mounting post (10), which is used to connect the stamping equipment.

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