Creasing die for opening of zip-top can

Abstract

The utility model discloses a zip-top can opening indentation die which comprises a fixing table, a lower die, a fixing cylinder and an upper die, and a through hole is formed in the middle of the fixing table. The lower die is arranged above the penetrating hole and fixedly connected with the telescopic rod penetrating through the penetrating hole. The fixed cylinder is arranged above the lower die; the upper die is arranged above the fixed cylinder and is provided with an indentation part; and the fixed cylinder, the lower die and the upper die are coaxially arranged. Due to the fact that the indentation portion capable of pressing the indentation on the opening of the can blank is arranged on the periphery of the upper die and the protruding portion is arranged on the lower die, in the using process, the can blank is placed into the fixing cylinder from the upper portion, then the can blank is supported through the lower die and punched through the upper die on the upper portion, the extending head of the upper die enters the can blank, and the indentation portion makes contact with the can blank. In the stamping process, the opening of the can blank is bent along the indentation ring groove in the indentation part, meanwhile, the lower die abuts against the bottom of the can blank for molding, molding is conducted up and down at the same time, and after indentation is completed, the can blank is ejected out through the lower die.

Description

Technical Field

[0001] The utility model relates to the field of can processing, in particular to a can opening indentation mould. Background Art

[0002] The can is formed by multiple stamping and stretching by a stamping device to form a can blank. The can blank needs to be installed with the stamped can cover, but the can blank needs to be set to a curved indentation with the same shape as the edge of the can cover. The existing method is direct forming by stamping, but during the stamping process, different indentations need to be stamped for can blanks of the same specification in different usage scenarios. The stamping die needs to be replaced during use, and the can bottom needs to be stamped separately. The stamping steps are relatively cumbersome, which affects the processing progress. Utility Model Content

[0003] One purpose of the utility model is to provide a can opening indentation mold which can solve at least any aspect of the above-mentioned technical problems.

[0004] A further object of the present invention is to avoid cumbersome stamping steps.

[0005] Another further object of the utility model is to improve processing progress and efficiency.

[0006] In particular, the utility model provides a can opening indentation mold, comprising a fixing platform, wherein a perforation is provided in the middle of the fixing platform;

[0007] A lower die, the lower die being arranged above the through hole and being fixedly connected to a telescopic rod passing through the through hole;

[0008] A fixed cylinder, the fixed cylinder is arranged above the lower mold;

[0009] An upper mold, the upper mold is arranged above the fixed cylinder, and the upper mold has an indentation portion;

[0010] The fixed cylinder is coaxially arranged with the lower die and the upper die.

[0011] Furthermore, the indentation portion is arranged close to the lower end of the upper mold, and a groove is arranged on a side of the indentation portion facing the fixed tube.

[0012] Furthermore, an indentation ring groove is provided in the groove.

[0013] Furthermore, an extension head is provided at one end of the upper mold close to the fixed tube, the extension head is directly opposite to the fixed tube, and the radius of the extension head is smaller than the radius of the fixed tube.

[0014] Furthermore, the radius of the indentation portion is larger than that of the fixing tube.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model is provided with a fixing cylinder capable of fixing a can blank, and the fixing cylinder is fixed by a fixing rod, and an upper die and a lower die are respectively provided on the upper and lower parts of the fixing cylinder, and an indentation part capable of pressing an indentation on the opening of the can blank is arranged on the periphery of the upper die, and a convex part is arranged on the lower die. When in use, the can blank is firstly put into the fixing cylinder from above, and then the can blank is supported by the lower die, and punching is performed by the upper die, so that the extension head of the upper die enters into the can blank, and the indentation part contacts with the can blank. During the punching process, the opening of the can blank is bent along the indentation ring groove in the indentation part, and at the same time, the lower die presses against the bottom of the can blank to shape it, and the upper and lower parts are performed simultaneously. After the indentation is completed, the can blank is pushed out by the lower die. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model.

[0019] Figure 2 It is a front view structural schematic diagram of the utility model.

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure along the AA direction.

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the partially enlarged structure of B.

[0022] In the figure: 1, fixed table, 2, lower die, 3, fixed cylinder, 4, upper die, 401, indentation part, 402, extension head, 403, indentation ring groove, 5, fixed rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Figure 1 It is a schematic diagram of the structure of the utility model. Figure 2 It is a front view structural schematic diagram of the utility model. Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure along the AA direction. Figure 4 For this utility model Figure 3 Schematic diagram of the partially enlarged structure of B.

[0025] The scheme of this embodiment provides a can opening indentation mold, including a fixed platform 1, a lower mold 2, a fixed cylinder 3 and an upper mold 4, wherein the fixed platform 1 is provided with a through hole in the middle, and a telescopic rod or a punching rod that can be extended and retracted is provided in the through hole; the lower mold 2 is arranged above the through hole, and the lower mold 2 is fixedly connected to the telescopic rod or the punching rod passing through the through hole. When in use, the can blank is lifted up by the action of the lower mold 2 and the punching rod, so that the can body can be fixed in the fixed cylinder 3; the fixed cylinder 3 is arranged above the lower mold 2; the upper mold 4 is arranged above the fixed cylinder 3, and the upper mold 4 has an indentation part 401; the fixed cylinder 3 is coaxially arranged with the lower mold 2 and the upper mold 4. When in use, the can blank fixed in the middle is punched out of the upper opening of the can blank by the upper and lower molds 2, so as to facilitate the fixed sealing with the can cover, and the lower part is punched into a concave surface, thereby improving the stability of the can body.

[0026] It should be further explained that the indentation portion 401 is arranged close to the lower end of the upper mold 4, and a groove is provided on the side of the indentation portion 401 facing the fixed cylinder 3, and an indentation ring groove 403 is provided in the groove for pressing out the indentation, wherein the indentation ring groove 403 can be replaced, taken out from the groove, and replaced with a new ring groove, so as to facilitate the cooperation and sealing with the tank cover, wherein the fixing method is the existing bolt fixed connection.

[0027] It should be further explained that an extension head 402 is provided at one end of the upper mold 4 close to the fixed cylinder 3, the extension head 402 is directly opposite to the fixed cylinder 3, and the radius of the extension head 402 is smaller than the radius of the fixed cylinder 3, and the extension head 402 can extend into the can blank.

[0028] It should be further explained that the radius of the indentation portion 401 is larger than that of the fixing tube 3 and is sufficient to cooperate with the opening of the can blank to form an indentation.

[0029] Working principle of this utility model:

[0030] When in use, the utility model is provided with a fixing cylinder 3 capable of fixing the can blank, and the fixing cylinder 3 is fixed by a fixing rod 5, and an upper mold 4 and a lower mold 2 are respectively provided above and below the fixing cylinder 3, and the periphery of the upper mold 4 is provided with an indentation portion 401 capable of pressing an indentation on the opening of the can blank, and the lower mold 2 is provided with a convex portion. When in use, the can blank is firstly put into the fixing cylinder 3 from above, and then the can blank is supported by the lower mold 2, and the upper upper mold 4 is used for stamping, so that the extension head 402 of the upper mold 4 enters the can blank, and the indentation portion 401 contacts the can blank. During the stamping process, the opening of the can blank is bent along the indentation ring groove 403 in the indentation portion 401, and at the same time, the lower mold 2 presses against the bottom of the can blank to shape it, and the upper and lower parts are performed simultaneously. After the indentation is completed, the can blank is ejected by the lower mold 2.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A can opening indentation mold, characterized in that: include, A fixing platform (1), wherein a through hole is provided in the middle of the fixing platform (1); A lower mold (2), the lower mold (2) being arranged above the through hole, and the lower mold (2) being fixedly connected to a telescopic rod passing through the through hole; A fixed cylinder (3), wherein the fixed cylinder (3) is arranged above the lower mold (2); An upper mold (4), the upper mold (4) being arranged above the fixed cylinder (3), and the upper mold (4) having an indentation portion (401); The fixed cylinder (3) is coaxially arranged with the lower mold (2) and the upper mold (4).

2. The can opening indentation mold according to claim 1, characterized in that: The indentation portion (401) is arranged close to the lower end of the upper mold (4), and a groove is arranged on a side of the indentation portion (401) facing the fixed cylinder (3).

3. The can opening indentation mold according to claim 2, characterized in that: An indentation ring groove (403) is provided in the groove.

4. The can opening indentation mold according to claim 1, characterized in that: An extension head (402) is provided at one end of the upper mold (4) close to the fixed cylinder (3); the extension head (402) faces the fixed cylinder (3), and the radius of the extension head (402) is smaller than the radius of the fixed cylinder (3).

5. The can opening indentation mold according to claim 1, characterized in that: The radius of the indentation portion (401) is greater than that of the fixing cylinder (3).

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