Two-piece can stamping device

Abstract

The utility model discloses a two-piece can stamping device which comprises a base, a stamping machine and a die, the die is divided into an outer die box and an inner die, the outer die box is installed on the top face of the base, a damping assembly is arranged at the bottom of the outer die box, and roller supporting rods with side wall rollers are installed on the inner side of the die wall of the outer die box; the inner die is placed on the damping assembly of the outer die box, the outer side of the die wall is provided with a vertical side wall groove matched with the side wall rolling wheel, the top face of the die wall is provided with a stamping groove matched with the two-piece can in shape and a left pressing assembly and a right pressing assembly, and the die replacement process during production of the two-piece cans of different specifications is simplified by splitting the inner die and the outer die; the side wall rollers are matched with the grooves to limit the inner mold and reduce friction; the damping assembly can buffer stamping impact force and prolong the service life of the die; the material pressing assembly can fix the stamping material, and stamping stability is guaranteed. The operation is simple and convenient, and the production efficiency and the quality stability of the two-piece can are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of two-piece can production, in particular to a two-piece can punching device. Background Art

[0002] As a common metal packaging container, two-piece cans are produced through stamping, which is one of the key processes. Due to the stamping process, the two-piece can consists of a can lid and an integral seamless can body with a bottom. This type of can body is widely used in the food, beverage and other industries due to its high airtightness, lightweight and material-saving characteristics.

[0003] However, existing two-piece can stamping systems present several challenges. Conventional stamping systems are often complex and difficult to operate. Furthermore, uneven pressure distribution during the stamping process can lead to inconsistent quality. Furthermore, the mold replacement process in existing systems is cumbersome, hindering rapid mold changes for the rapid production of two-piece cans of varying specifications. Utility Model Content

[0004] The purpose of the utility model is to provide a two-piece can punching device to solve the problem of complicated mold replacement process.

[0005] The utility model is achieved through the following technical solutions:

[0006] A two-piece can stamping device includes a base and a punching machine located above the base, and also includes a mold, the mold including an outer mold box and an inner mold, the outer mold box is installed on the top surface of the base, the bottom of the outer mold box is installed with a shock-absorbing assembly, the inner side of the mold wall of the outer mold box is installed with left and right roller support rods, the ends of the roller support rods are installed with side wall rollers, the inner mold is placed on the shock-absorbing assembly at the bottom of the outer mold box, the outer side of the mold wall of the inner mold is provided with a vertical side wall groove that is adapted to the side wall rollers, the top surface of the inner mold is provided with a stamping groove located directly below the punching machine and adapted to the shape of the two-piece can, and pressing assemblies are provided on both the left and right sides of the top surface of the inner mold.

[0007] Further,

[0008] The shock absorbing assembly includes a placement plate, a movable connecting rod, a bottom roller, a tension spring, and a compression spring. Connecting grooves are provided on both sides of the bottom of the placement plate, and a movable rod connecting the front and rear groove walls is provided in the connecting groove. A small hole that can be sleeved on the movable rod is provided at one end of the movable connecting rod. A space that can accommodate the bottom roller is provided in the middle of the other end of the movable connecting rod, and a horizontal axis passes through the space. The bottom roller is arranged on the horizontal axis. A tension spring is provided between the movable connecting rods, and the compression spring is arranged in the left and right directions at the bottom of the outer mold box, one end is connected to the wall of the outer mold box, and the other end is connected to both ends of the horizontal axis.

[0009] Further,

[0010] The pressing assembly includes a bow frame, a hydraulic cylinder, a telescopic rod, and a pressing plate. The bow frame is on the left and right sides of the top surface of the inner mold. The hydraulic cylinder is arranged on the top lower surface of the bow frame. A telescopic rod that can move up and down is connected to the bottom of the hydraulic cylinder, and the lower end of the telescopic rod is connected to the pressing plate.

[0011] Further,

[0012] A rolling groove for the bottom roller to roll is provided between the compression springs at the bottom of the outer mold box.

[0013] Further,

[0014] The length of the side wall groove is the same as the height of the inner mold.

[0015] The utility model has the following beneficial effects:

[0016] The utility model discloses a two-piece can punching device, which is simple and convenient to operate, can reduce the pressure on the mold through the buffering and shock-absorbing components, and prolongs the service life of the mold.

[0017] The utility model separates the stamping die into an outer die box and an inner die, and places the inner die in the outer die box, so that the die can be replaced more conveniently, so as to be more efficient in producing two-piece cans of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic structural diagram of the utility model.

[0020] Figure 2 It is a perspective view of the utility model.

[0021] Figure 3 It is a schematic diagram of the pressing component structure.

[0022] Figure 4 Schematic diagram of the movable connecting rod.

[0023] Figure 5 This is the top view of the placement board.

[0024] Figure 6 This is the side view of the inner mold.

[0025] Markings and corresponding parts names in the accompanying drawings:

[0026] Base-1, mold-2, outer mold box-20, roller support rod-202, side wall roller-203, inner mold-21, side wall groove-214, punching groove-213, punching machine-3, shock absorbing assembly-4, placement plate-40, connecting groove-401, movable rod-402, movable connecting rod-41, horizontal axis-411, bottom roller-42, tension spring-43, compression spring-44, pressing assembly-6, bow frame-60, hydraulic cylinder-61, telescopic rod-62, pressing plate-63. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "opened," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances. Example

[0030] See also Figures 1 to 6 :

[0031] A two-piece can stamping device includes a base 1 and a punching machine 3 located above the base 1, and also includes a mold 2. The mold 2 includes an outer mold box 20 and an inner mold 21. The outer mold box 20 is installed on the top surface of the base 1. A shock-absorbing assembly 201 is installed at the bottom of the outer mold box 20. Left and right roller support rods 202 are installed on the inner side of the mold wall of the outer mold box 20. Side wall rollers 203 are installed at the ends of the roller support rods 202. The inner mold 21 is placed on the shock-absorbing assembly 4 at the bottom of the outer mold box 20. A vertical side wall groove 214 is provided on the outer side of the mold wall of the inner mold 21 and is adapted to the side wall rollers 212. The top surface of the inner mold 21 is provided with a stamping groove 213 located directly below the punching machine 3 and adapted to the shape of the two-piece can. A pressing assembly 6 is provided on both the left and right sides of the top surface of the inner mold 21.

[0032] The mold is divided into an inner mold 20 and an outer mold 21. The outer mold 20 is a box with an opening upward. The inner mold 21 can be placed in the outer mold 20. When producing two-piece cans of different sizes and shapes, it is only necessary to directly take out the inner mold 21 from the outer mold 20 and replace it with an appropriate inner mold 21. The mold replacement process is simplified. At the same time, the cooperation between the side wall roller 212 and the side wall groove 214 has a limiting effect on the inner mold 21. The side wall roller 212 reduces the friction between the inner mold 20 and the outer mold 21, thereby extending the service life.

[0033] Further,

[0034] The shock absorbing assembly 4 includes a placement plate 40, a movable connecting rod 41, a bottom roller 42, a tension spring 43, and a compression spring 44. Connecting grooves 401 are provided on both sides of the bottom of the placement plate 40, and a movable rod 402 connecting the front and rear groove walls is provided in the connecting groove 401. A small hole 410 that can be sleeved on the movable rod 402 is provided at one end of the movable connecting rod 41. A space for accommodating the bottom roller 42 is provided in the middle of the other end of the movable connecting rod 41, and a horizontal axis 411 passes through the space. The bottom roller 42 is arranged on the horizontal axis 411. A tension spring 43 is provided between the movable connecting rods 41. The compression spring 44 is arranged at the bottom of the outer mold box 20 in the left and right directions, one end is connected to the wall of the outer mold box 20, and the other end is connected to both ends of the horizontal axis 411.

[0035] The eyelet 410 on the movable connecting rod 41 is sleeved on the movable rod 402, and the movable connecting rod 41 can swing in the direction of the left and right directions. The impact force received during the buffering punching is received by the extension spring 43 being stretched and the compression spring 44 being compressed.

[0036] Further,

[0037] The pressing assembly 6 comprises an arc-shaped frame 60, a hydraulic cylinder 61, an extension rod 62 and a pressing plate 63, the arc-shaped frame 60 is arranged on the top surface of the inner mold 21, the hydraulic cylinder 61 is arranged on the top lower surface of the arc-shaped frame 60, the extension rod 62 connected with the hydraulic cylinder 61 is movable up and down, and the lower end of the extension rod 62 is connected with the pressing plate 63.

[0038] When the hydraulic cylinder 61 drives the extension rod 62 to move downwards, the pressing plate 63 moves along, the pressing plate 63 can press on the stamping material, an external force is applied on the stamping material, so that the stamping material is fixed and prevented from moving during the stamping process.

[0039] Further,

[0040] The compression spring 44 is provided with a rolling groove at the bottom of the outer mold box 20, and the bottom roller 42 can roll in the rolling groove.

[0041] The rolling groove limits the rolling track of the bottom roller 42, and prevents the movable connecting rod 41 connected with the bottom roller 42 from shaking on the movable rod 402.

[0042] Further,

[0043] The length of the side wall groove 213 is the same as the height of the inner mold 21.

[0044] The inner mold 21 is convenient to put in and take out.

[0045] The principle of the utility model is:

[0046] Before stamping, the side wall roller 203 on the outer mold 20 is placed in the side wall groove 213 on the inner mold 21, and the inner mold 21 is placed on the placement plate in the outer mold 20 along the side wall groove 213. Then, the stamping material is placed on the stamping groove 213, completely covering the stamping groove 213, and then the hydraulic cylinder 61 on the lower surface of the top of the bow frame 60 on both sides of the top surface of the inner mold 21 is started to extend the telescopic rod 62 downward, and at the same time push the pressing plate 63 downward to press the stamping material, fix the stamping material and prevent it from bouncing. After completing the above operations, the punching machine 3 is started, and the punching machine 3 punches the punching material, punching and stretching the material into the punching groove 213. As the punching proceeds, the downward pressure on the inner mold 21 acts on the placement plate 40, and the inner mold 21 and the placement plate 40 move downward. The movable connecting rod 41 is subjected to the force exerted by the placement plate 40 and transmits the pressure to the bottom roller, causing the bottom roller 42 to roll to both sides in the rolling groove at the bottom of the outer mold 20, while driving the movable connecting rod 41 to swing to both sides, thereby stretching the tension spring 43 and compressing the compression springs 44 on both sides of the bottom roller 42. After the punching, the compression spring and the tension spring at the bottom of the outer mold return to the state before the punching. The compression spring 44 will push the bottom roller 42 to move toward the middle, driving the movable connecting rod 41 to move toward the middle. The tension spring 41 is stretched, so it will also pull the movable connecting rod 41 toward the middle. When the movable connecting rod 41 is pulled toward the middle, the placement plate will be lifted up by the movable connecting rod 41 and return to its original position. Since the placement plate 40 is lifted up, the inner mold 21 on the placement plate 40 will also move upward, thereby realizing the recovery of the entire device.

[0047] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A two-piece can punching device, comprising a base (1) and a punching machine (3) located above the base (1), characterized in that: The invention also includes a mold (2), wherein the mold (2) includes an outer mold box (20) and an inner mold (21), wherein the outer mold box (20) is mounted on the top surface of the base (1), a shock-absorbing assembly (4) is mounted on the bottom of the outer mold box (20), and left and right roller supports (202) are mounted on the inner side of the mold wall of the outer mold box (20), and side wall rollers (203) are mounted on the ends of the roller supports (202), and the inner mold (21) is placed on the shock-absorbing assembly (4) at the bottom of the outer mold box (20), and a vertical side wall groove (214) adapted to the side wall rollers (203) is opened on the outer side of the mold wall of the inner mold (21), and a stamping groove (213) located directly below the stamping machine (3) and adapted to the shape of the two-piece can is provided on the top surface of the inner mold (21), and a pressing assembly (6) is provided on both the left and right sides of the top surface of the inner mold (21).

2. A two-piece can punching device according to claim 1, characterized in that: The shock absorbing assembly (4) includes a placement plate (40), a movable connecting rod (41), a bottom roller (42), a tension spring (43), and a compression spring (44). The placement plate (40) has connecting grooves (401) on both sides of the bottom, and a movable rod (402) is provided in the connecting groove (401) to connect the front and rear groove walls. A small hole (410) that can be sleeved on the movable rod (402) is provided at one end of the movable connecting rod (41). A space that can accommodate the bottom roller (42) is provided in the middle of the other end of the movable connecting rod (41), and a transverse axis (411) passes through the space. The bottom roller (42) is arranged on the transverse axis (411). A tension spring (43) is provided between the movable connecting rods (41). The compression spring (44) is arranged on the bottom of the outer mold box (20) in the left and right directions, one end of which is connected to the wall of the outer mold box (20) and the other end of which is connected to both ends of the transverse axis (411).

3. A two-piece can punching device according to claim 1, characterized in that: The pressing assembly (6) comprises a bow frame (60), a hydraulic cylinder (61), a telescopic rod (62), and a pressing plate (63). The bow frame (60) is located on the left and right sides of the top surface of the inner mold (21). The hydraulic cylinder (61) is arranged on the lower surface of the top of the bow frame (60). A telescopic rod (62) that can move up and down is connected below the hydraulic cylinder (61). The lower end of the telescopic rod (62) is connected to the pressing plate (63).

4. A two-piece can punching device according to claim 2, characterized in that: A rolling groove for the bottom roller (42) to roll is provided between the compression springs (44) at the bottom of the outer mold box (20).

5. The two-piece can punching device according to claim 1, characterized in that: The length of the side wall groove (214) is the same as the height of the inner mold (21).

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