A stamping die applied to iron cans

Abstract

The utility model discloses a kind of stamping die applied to iron tank, it is related to stamping die technical field, including upper die and matching lower die, the upper die is provided with die handle and stamping head, the lower die is provided with die holder, the end face of the die holder is opened with the stamping groove corresponding to stamping head;Plate body is installed on the lower die by connecting column, the plate body is located above die holder and is between lower die and upper die, guide pillar located outside die holder is arranged between the lower die and plate body, one end of the guide pillar is fixedly connected to lower die, the other end of the guide pillar is threaded plate body and cooperates with upper die;The side end of the plate body is opened with the first let -out slot adapted to guide pillar, the central position of the plate body and the direct above of stamping groove is opened with second let -out slot, the second let -out slot is position corresponding with stamping head, and the stamping head can be threaded second let -out slot;Significantly reduce the alignment deviation of stamping head and stamping groove, improve the dimensional accuracy and forming quality of product.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a stamping die applied to iron cans. Background Technology

[0002] Stamping is a key process in metal product manufacturing. Using a press and stamping dies, pressure is applied to metal sheets, causing them to separate or plastically deform, thus obtaining parts of the desired shape and size. It is widely used in industries such as tin can manufacturing. As the core equipment in stamping, the performance of stamping dies directly determines the precision of the parts, production efficiency, and cost.

[0003] In the tin can production process, stamping is required to complete multiple steps, including can body forming, lid opening, and component connection structure processing. When using traditional stamping dies for tin can stamping, if the stamping head lacks precise guidance during the die-closing stage, misalignment can easily occur between it and the lower die stamping station. This results in insufficient dimensional accuracy of the tin can stamping, increased scrap rate, and affects product quality and enterprise profits.

[0004] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0006] A stamping die for tin cans includes an upper die and a matching lower die. The upper die is provided with a die shank and a stamping head, and the lower die is provided with a die base. A stamping groove corresponding to the stamping head is formed on the end face of the die base.

[0007] A plate is mounted on the lower mold via a connecting column. The plate is located above the mold base and between the lower mold and the upper mold. A guide column is provided between the lower mold and the plate, located outside the mold base. One end of the guide column is fixedly connected to the lower mold, and the other end of the guide column passes through the plate and cooperates with the upper mold.

[0008] The plate has a first clearance groove adapted to the guide post at its side end. The plate has a second clearance groove at its center position and directly above the stamping groove. The second clearance groove corresponds to the position of the stamping head, and the stamping head can pass through the second clearance groove. The plate has a guide structure at its end face and at the second clearance groove. The guide structure is used to guide the stamping stroke of the stamping head.

[0009] As a further embodiment of this utility model: a pick-up and place notch is provided on the front side of the plate corresponding to the second relief groove. The pick-up and place notch is arranged in a gradually expanding shape along the direction away from the second relief groove, and the inner wall of the pick-up and place notch is connected to the inner wall of the second relief groove to form a channel for workpiece pick-up and place operations.

[0010] As a further embodiment of this utility model: the guide structure is a guide boss protruding from the outer side of the end face of the second relief groove on the plate body, the guide boss is provided with a guide slope facing the inner side of the second relief groove, and the guide slope is gradually reduced along the stamping direction of the stamping head.

[0011] As a further embodiment of this utility model: the guide boss includes at least three convex edges that surround the outer periphery of the second relief groove and are continuously connected, and each of the convex edges is provided with a guide slope on the side facing the second relief groove;

[0012] The guide slopes of each of the convex edges together form a guide channel that acts on the stamping head.

[0013] As a further embodiment of this utility model: the lower mold is provided with two stamping grooves arranged at intervals, and the plate body is provided with two pick-up and put-out notches, which correspond one-to-one with the two stamping grooves;

[0014] The plate body has a spacer between the two pick-up and put-out notches, and the two pick-up and put-out notches are separated by the spacer of the plate body, and the spacer is adapted to the widening direction of the pick-up and put-out notches.

[0015] As a further embodiment of this utility model: a connecting plate is connected to the lower surface of the upper mold, the connecting plate is provided with an assembly cavity, and one end of the stamping head is embedded in the assembly cavity.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] The guide post and the first relief groove work together to achieve initial positioning and reduce shaking during the mold closing process. The guide structure, combined with the second relief groove, performs secondary calibration, which significantly reduces the alignment deviation between the stamping head and the stamping groove, avoids defects such as iron can stamping deformation and hole diameter error caused by inaccurate positioning, and improves the dimensional accuracy and forming quality of the product.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the lower mold and the plate body in this utility model;

[0022] Figure 3 This is a schematic diagram of the upper mold in this utility model.

[0023] The reference numerals and names in the figure are as follows:

[0024] 1. Upper die; 2. Lower die; 3. Die shank; 4. Punch head; 5. Die base; 6. Punch groove; 7. Plate; 8. Guide post; 9. First clearance groove; 10. Second clearance groove; 11. Guide structure; 12. Pick-up and drop-off notch; 13. Guide slope; 14. Protruding edge; 15. Spacing part; 16. Connecting plate; 17. Assembly cavity. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-3 In this embodiment of the present invention, a stamping die for tin cans includes a matching upper die 1 and a lower die 2. The upper die 1 has a die handle 3 at its top, which is used to fix and connect to a press to transmit the vertical stamping power of the press. The lower die 1 has a stamping head 4 at its bottom, which extends vertically and has its lower end face as a stamping working surface. The lower die 2 includes a die base 5, and the upper end face of the die base 5 has a stamping groove 6, which corresponds to the position of the stamping head 4 and is used to accommodate the tin can workpiece and form a stamping forming space.

[0027] A plate 7 is mounted on the mold base 5 of the lower mold 2 via a connecting column. The plate 7 is horizontally positioned between the lower mold 2 and the upper mold 1. A guide post 8 is provided between the plate 7 and the lower mold 2. One end of the guide post 8 is fixedly connected to the outside of the mold base 5, and the other end passes through the plate 7 and mates with the bottom of the upper mold 1. A first clearance groove 9 adapted to the guide post 8 is provided on the side end of the plate 7. The inner diameter of the first clearance groove 9 forms a clearance fit with the outer diameter of the guide post 8, ensuring that the guide post 8 can pass through, while limiting the horizontal displacement of the plate 7 and the upper mold 1, so that the upper mold 1 can move vertically along the direction of the guide post 8.

[0028] A second clearance groove 10 is provided at the center of the plate 7, directly above the stamping groove 6. The axis of the second clearance groove 10 coincides with the axis of the stamping groove 6. The stamping head 4 can pass through the second clearance groove 10 and extend downward into the stamping groove 6. A guide structure 11 is provided on the outer side of the end face of the plate 7 corresponding to the second clearance groove 10. The guide structure 11 is a guide boss protruding from the end face of the plate 7. A guide ramp 13 is provided on the inner side of the guide boss facing the second clearance groove 10. The guide ramp 13 is gradually tapered along the stamping direction of the stamping head 4 (i.e., the vertical downward direction), that is, the opening size of the guide ramp 13 gradually decreases from top to bottom (the direction in which the stamping head 4 enters).

[0029] Furthermore, the guide boss includes at least three continuously connected protruding edges 14 surrounding the outer periphery of the second relief groove 10. Each protruding edge 14 is distributed in a frame shape (e.g., three or four sides are continuously connected). Each protruding edge 14 has a guide slope 13 on one side facing the second relief groove 10. The guide slopes 13 of each protruding edge 14 together form a guide channel. The cross-sectional shape of the guide channel is adapted to the outer periphery shape of the stamping head 4 (e.g., circular, square, etc.), and the minimum inner diameter of the guide channel is consistent with the outer diameter of the stamping head 4. Thus, when the stamping head 4 passes through the second relief groove 10, the movement trajectory of the stamping head 4 is calibrated by the gradually narrowing guiding effect of the guide slope 13, ensuring that it is precisely aligned with the stamping groove 6.

[0030] A pick-and-place notch 12 is provided on the front side of the plate 7 corresponding to the second relief groove 10. The pick-and-place notch 12 is gradually widened in the direction away from the second relief groove 10, that is, the opening size of the pick-and-place notch 12 gradually increases from the side closer to the second relief groove 10 outwards. The inner wall of the pick-and-place notch 12 communicates with the inner wall of the second relief groove 10, forming a channel extending from the outside of the plate 7 to the second relief groove 10, which facilitates the operator to pick up and place the iron can workpiece in the stamping groove 6 through the channel.

[0031] When the mold is set to dual stations, two stamping grooves 6 are arranged at intervals on the mold base 5 of the lower mold 2, and two pick-and-place notches 12 are correspondingly provided on the plate body 7, with each pick-and-place notch 12 corresponding to one stamping groove 6. The two pick-and-place notches 12 are separated by a partition 15 on the plate body 7, and the width of the partition 15 is adapted to the gradually expanding direction of the pick-and-place notches 12, ensuring that the operator can pick up and place the workpieces at the two stations separately and avoid mutual interference.

[0032] A connecting plate 16 is connected to the lower surface of the upper die 1. An assembly cavity 17 is formed on the surface of the connecting plate 16, and the upper end of the punch head 4 is embedded in the assembly cavity 17. The punch head 4 and the assembly cavity 17 can be fixedly connected by means of positioning pins, fastening bolts, etc. (for example, at least two bolts pass through the connecting plate 16 and are connected to the screw holes of the punch head 4), or by fixing the connecting plate 16 to the upper die 1, fixing one end of the punch head 4 between the connecting plate 16 and the upper die 1, thereby realizing the fixation of the punch head 4, thereby ensuring the rigidity of the connection between the punch head 4 and the upper die 1, and preventing displacement during the punching process.

[0033] Working principle:

[0034] When the press drives the upper die 1 downwards, the guide post 8 cooperates with the first clearance groove 9 to provide initial guidance for the upper die 1. The stamping head 4 moves downwards with the upper die 1, first passing through the guide channel of the guide boss, and then achieving precise positioning through the gradually narrowing guide slope 13. It then passes through the second clearance groove 10 and enters the stamping groove 6 to stamp the iron can workpiece. After stamping is completed, the upper die 1 returns, and the operator can remove the workpiece through the pick-and-place notch 12 and the gradually widening channel. In the dual-station design, two workpieces can be stamped simultaneously, and the pick-and-place operation is separated by the partition 15, improving production efficiency.

[0035] The above structure achieves high precision, high efficiency, and high stability in iron can stamping through multi-level guidance, modular assembly, and convenient loading and unloading design.

[0036] Through the above-mentioned structural design, this stamping die effectively improves the reliability and stability of the stamping operation. The cooperation between the guide post 8 and the first relief groove 9 achieves initial positioning, reducing the shaking during the mold closing process of the upper die 1; the guide structure 11, in conjunction with the second relief groove 10, performs secondary calibration, significantly reducing the alignment deviation between the stamping head 4 and the stamping groove 6, avoiding defects such as iron can stamping deformation and hole diameter errors caused by inaccurate positioning, and improving the dimensional accuracy and forming quality of the product.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A stamping die for use in tin cans, characterized in that, It includes an upper die and a matching lower die. The upper die is provided with a die shank and a punch head, and the lower die is provided with a die base. The end face of the die base is provided with a punching groove corresponding to the punch head. A plate is mounted on the lower mold via a connecting column. The plate is located above the mold base and between the lower mold and the upper mold. A guide column is provided between the lower mold and the plate, located outside the mold base. One end of the guide column is fixedly connected to the lower mold, and the other end of the guide column passes through the plate and cooperates with the upper mold. The plate has a first clearance groove adapted to the guide post at its side end. The plate has a second clearance groove at its center position and directly above the stamping groove. The second clearance groove corresponds to the position of the stamping head, and the stamping head can pass through the second clearance groove. The plate has a guide structure at its end face and at the second clearance groove. The guide structure is used to guide the stamping stroke of the stamping head.

2. The stamping die for iron cans according to claim 1, characterized in that, The plate body has a pick-and-place notch on the front side corresponding to the second relief groove. The pick-and-place notch is set in a gradually expanding shape along the direction away from the second relief groove, and the inner sidewall of the pick-and-place notch is connected to the inner sidewall of the second relief groove to form a channel for workpiece pick-and-place operations.

3. A stamping die for use in tin cans according to claim 1 or 2, characterized in that, The guide structure is a guide boss protruding from the outer side of the end face of the second relief groove on the plate. The guide boss has a guide slope facing the inner side of the second relief groove, and the guide slope is gradually tapered along the stamping direction of the stamping head.

4. A stamping die for use in tin cans according to claim 3, characterized in that, The guide boss includes at least three convex edges that surround the outer periphery of the second relief groove and are continuously connected, and each of the convex edges has a guide slope on the side facing the second relief groove. The guide slopes of each of the convex edges together form a guide channel that acts on the stamping head.

5. A stamping die for use in tin cans according to claim 2, characterized in that, The lower die is provided with two stamping grooves arranged at intervals, and the plate is provided with two pick-up and put-out notches, which correspond one-to-one with the two stamping grooves; The plate body has a spacer between the two pick-up and put-out notches, and the two pick-up and put-out notches are separated by the spacer of the plate body, and the spacer is adapted to the widening direction of the pick-up and put-out notches.

6. A stamping die for use in tin cans according to claim 1, characterized in that, A connecting plate is connected to the lower surface of the upper die, and the connecting plate is provided with an assembly cavity. One end of the stamping head is embedded in the assembly cavity.

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