A can body end press die

Abstract

The utility model discloses a kind of tank head punch press dies, including support and workbench, the upper end of support is provided with top plate, it is characterized by: the lower portion of top plate is provided with upper locating ring and male die, the upper portion of top plate is provided with the first drive mechanism and the second drive mechanism respectively driving upper locating ring and male die movement, the upper portion of workbench is provided with female die, female die includes lower locating ring and jacking block, the lower portion of workbench is provided with the third drive mechanism for driving lower locating ring movement, the utility model is fixed after plate material by upper locating ring descending, male die is again descended and plate material is punched to the inside of female die, to plate material is formed as blank, after lower locating ring descending, so that the edge of blank is in bare state, then upper locating ring is again descended and performs flanging operation to blank, to realize plate material punching and flanging continuous operation, improve tank head forming efficiency, and further improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tank head, and in particular to a tank head stamping die. Background Technology

[0002] In the modern food packaging industry, tin cans are a common and long-standing form of packaging. They come in a variety of types and have different functions, from canned goods to beverage cans to coffee cans. Various food tin cans not only carry the mission of protection and preservation, but also reflect the characteristics and production processes of different products. Among them, the end cap (also known as the end cap) is a pressure-bearing element used to seal the end of the can and isolate the internal and external media.

[0003] Existing tank head forming mainly relies on stamping dies to shape sheet metal into head blanks. At this time, the edges of the head blanks are relatively sharp, and it is necessary to perform edge rolling operations on the head blanks. However, the above two steps need to be operated separately, resulting in a separate operation mode for stamping and edge rolling, which affects the forming efficiency of tank heads. To address this issue, a tank head stamping die is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a tank head stamping die to solve the problem mentioned in the background art of separating stamping and edge rolling operations, which affects the forming efficiency of tank heads. The technical solution of this utility model provides a solution that is significantly different from the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A tank head stamping die includes a support and a worktable. A top plate is provided at the upper end of the support. The top plate is characterized in that: an upper positioning ring and a punch are provided below the top plate; a first driving mechanism and a second driving mechanism are provided above the top plate to drive the upper positioning ring and the punch to move respectively; a die is provided above the worktable, the die including a lower positioning ring and a lifting block; and a third driving mechanism is provided below the worktable to drive the lower positioning ring to move.

[0006] Preferably, a guide plate is provided below the top plate, the guide plate is located between the upper positioning ring and the punch, and a guide block, an upper forming groove and a pressure plate are arranged sequentially from the inner ring surface to the outer ring surface at the lower end of the upper positioning ring. The first driving mechanism is a first hydraulic rod and the second driving mechanism is a second hydraulic rod.

[0007] Preferably, a base plate is provided below the workbench, the workbench is fixed at a high position by a column, the base plate is connected to the column, the third drive mechanism is a third hydraulic rod and a movable plate, the movable plate is located between the workbench and the base plate, and the upper end of the third hydraulic rod passes through the base plate and connects to the lower part of the movable plate.

[0008] Preferably, the lifting block is located inside the lower positioning ring, a fixed seat is provided below the lifting block, a retaining ring is provided on the side of the lifting block, a spring is provided between the lifting block and the fixed seat, and the fixed seat is installed on the top of the worktable.

[0009] Preferably, the upper end of the lower positioning ring is provided with a material groove and a lower forming groove, and the lower end of the lower positioning ring is provided with a guide post. The guide post is connected to the movable plate and is located inside the material groove before the sheet metal is stamped.

[0010] Compared with the prior art, the beneficial effects of this utility model are: In this invention, after the sheet metal is placed inside the material trough, the upper positioning ring first descends to fix the sheet metal, and then the punch descends to press the sheet metal into the interior of the die until the sheet metal is formed into a blank. After that, the lower positioning ring descends, so that the edge of the blank is exposed. Then the upper positioning ring descends again to perform an edge-rolling operation on the blank. Finally, the upper positioning ring and the punch rise in sequence, the lifting block resets and drives the formed end cap to be ejected from the die, thereby realizing continuous operation of sheet metal stamping and edge rolling, improving the forming efficiency of tank end caps, and thus improving production efficiency. Attached Figure Description

[0011] Figure 1 A schematic diagram of the main structure of the tank head stamping die; Figure 2 A schematic diagram of the lifting block in the stamping die for the tank head; Figure 3 A schematic diagram of sheet metal being stamped into blanks in a die for stamping tank heads; Figure 4 For the stamping die of the tank head Figure 3 Enlarged view of part A; Figure 5 This is a schematic diagram of the blank edge rolling in the stamping die for the tank head.

[0012] In the diagram: 1. Support; 101. Top plate; 102. Guide plate; 2. Worktable; 201. Base plate; 202. Column; 3. Upper positioning ring; 301. First hydraulic rod; 302. Pressure plate; 303. Upper forming groove; 304. Guide block; 4. Punch; 401. Second hydraulic rod; 5. Lower positioning ring; 501. Guide column; 502. Material groove; 503. Lower forming groove; 6. Third hydraulic rod; 601. Movable plate; 7. Lifting block; 701. Retaining ring; 702. Spring; 703. Fixed seat; 8. Plate. Detailed Implementation

[0013] 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.

[0014] 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.

[0015] 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.

[0016] Please see Figure 1-5 In this utility model, a tank head stamping die includes a support 1 and a worktable 2. The upper end of the support 1 is provided with a top plate 101, and the lower part of the top plate 101 is provided with an upper positioning ring 3 and a punch 4. The top of the top plate 101 is provided with a first hydraulic rod 301 and a second hydraulic rod 401 that drive the upper positioning ring 3 and the punch 4 to move up and down respectively. The worktable 2 is provided with a die, which includes a lower positioning ring 5 and a lifting block 7. The lower part of the worktable 2 is provided with a third hydraulic rod 6 for driving the lower positioning ring 5 to move up and down.

[0017] Example: Please refer to Figure 1-5In this embodiment of the utility model, a tank head stamping mold is provided. A base plate 201 is provided below the workbench 2. The workbench 2 is fixed at a high position by a column 202. The base plate 201 is connected to the column 202. A movable plate 601 is located between the workbench 2 and the base plate 201. The upper end of the third hydraulic rod 6 passes through the base plate 201 and is connected to the lower part of the movable plate 601.

[0018] The upper end of the lower positioning ring 5 is provided with a material groove 502 and a lower forming groove 503, and the lower end of the lower positioning ring 5 is provided with a guide post 501, which is connected to the movable plate 601.

[0019] The lifting block 7 is located inside the lower positioning ring 5. A fixed seat 703 is provided below the lifting block 7. A retaining ring 701 is provided on the side of the lifting block 7. A spring 702 is provided between the lifting block 7 and the fixed seat 703. The fixed seat 703 is installed on the worktable 2.

[0020] A guide plate 102 is provided below the top plate 101. The guide plate 102 is located between the upper positioning ring 3 and the punch 4. The lower end of the upper positioning ring 3 is provided with a guide block 304, an upper forming groove 303 and a pressure plate 302 in sequence from the inner ring surface to the outer ring surface.

[0021] After the sheet metal 8 is placed inside the material groove 502, the first hydraulic rod 301 first drives the upper positioning ring 3 to descend, so that the pressure plate 302 fits with the sheet metal 8, thereby restricting the position of the sheet metal 8. The second hydraulic rod 401 then drives the punch 4 to descend and press the sheet metal 8 into the interior of the die. As the punch 4 descends, the lifting block 7 and the sheet metal 8 are pressed into the interior of the lower positioning ring 5. When the lifting block 7 fits with the fixed seat 703, the sheet metal 8 is shaped into a blank by the punch 4, the lower positioning ring 5 and the lifting block 7. Then, the third hydraulic rod 6 sequentially drives the movable plate 601 and the lower positioning ring 5 to descend until the movable plate 601 is in contact with the bottom plate 201, causing the upper edge of the blank to detach from the inside of the lower positioning ring 5. Then, the first hydraulic rod 301 drives the upper positioning ring 3 to descend again to perform the edge rolling operation on the blank. As the upper positioning ring 3 gradually descends, the guide block 304 guides the upper edge of the blank to move into the upper forming groove 303. When the pressure plate 302 and the material groove 502 are in contact, the upper forming groove 303 and the lower forming groove 503 cooperate to squeeze the upper edge of the blank into a ring, thereby completing the edge rolling operation. Finally, the upper positioning ring 3 and the punch 4 rise sequentially, and the spring 702 pushes the lifting block 7 to reset and drive the formed end cap to detach from the die. This realizes continuous operation of stamping and edge rolling of the sheet metal 8, improves the forming efficiency of the tank end cap, and thus improves the production efficiency.

[0022] The working principle of this utility model is as follows: After the plate 8 is placed inside the material groove 502, the upper positioning ring 3 first descends to fix the plate 8, and the punch 4 then descends to press the plate 8 into the inside of the die until the plate 8 is formed into a blank. Then the lower positioning ring 5 descends, so that the edge of the blank is exposed. Then the upper positioning ring 3 descends again to perform edge rolling on the blank. Finally, the upper positioning ring 3 and the punch 4 rise in sequence, the lifting block 7 resets and drives the formed end cap to be removed from the die, thereby realizing continuous operation of plate 8 stamping and edge rolling, improving the forming efficiency of tank end cap, and thus improving production efficiency.

[0023] 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 illustrative 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. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tank head stamping die, comprising a support (1) and a worktable (2), wherein a top plate (101) is provided at the upper end of the support (1), characterized in that: The top plate (101) is provided with an upper positioning ring (3) and a punch (4) below it. The top plate (101) is provided with a first driving mechanism and a second driving mechanism that drive the upper positioning ring (3) and the punch (4) to move respectively. The worktable (2) is provided with a die above it. The die includes a lower positioning ring (5) and a lifting block (7). The worktable (2) is provided with a third driving mechanism for driving the lower positioning ring (5) to move below it.

2. The tank head stamping die according to claim 1, characterized in that: A guide plate (102) is provided below the top plate (101). The guide plate (102) is located between the upper positioning ring (3) and the punch (4). The lower end of the upper positioning ring (3) is provided with a guide block (304), an upper forming groove (303) and a pressure plate (302) in sequence from the inner ring surface to the outer ring surface. The first driving mechanism is the first hydraulic rod (301) and the second driving mechanism is the second hydraulic rod (401).

3. The tank head stamping die according to claim 1, characterized in that: A base plate (201) is provided below the workbench (2). The workbench (2) is fixed at a high position by a column (202). The base plate (201) is connected to the column (202). The third driving mechanism consists of a third hydraulic rod (6) and a movable plate (601). The movable plate (601) is located between the workbench (2) and the base plate (201). The upper end of the third hydraulic rod (6) passes through the base plate (201) and connects to the bottom of the movable plate (601).

4. The tank head stamping die according to claim 1, characterized in that: The lifting block (7) is located inside the lower positioning ring (5). A fixed seat (703) is provided below the lifting block (7). A retaining ring (701) is provided on the side of the lifting block (7). A spring (702) is provided between the lifting block (7) and the fixed seat (703). The fixed seat (703) is installed on the worktable (2).

5. The tank head stamping die according to claim 1, characterized in that: The upper end of the lower positioning ring (5) is provided with a material groove (502) and a lower forming groove (503), and the lower end of the lower positioning ring (5) is provided with a guide post (501). The guide post (501) is connected to the movable plate (601), and the plate (8) is located inside the material groove (502) before stamping.

Images