Multi-station stamping die for preparing bottle cap with center hole flanging

Abstract

The utility model discloses a multi-station stamping die for preparing a bottle cap with a center hole flanging, which comprises an upper die assembly, a lower die assembly, a guide assembly and a die assembly, and the upper die assembly is movably connected with the lower die assembly through the guide assembly; the mold assembly comprises an upper mold and a lower mold; the upper die comprises a punching upper female die, a flanging upper female die and a stretching forming upper female die which are arranged on the upper die assembly in the set direction. The lower die comprises a lower punching male die, a lower flanging male die and a lower stretching forming male die which are arranged on the lower die assembly in the set direction, and the lower punching male die, the lower flanging male die and the lower stretching forming male die correspond to the upper punching female die, the upper flanging female die and the upper stretching forming female die in position one to one. By improving the die, automatic feeding and continuous operation can be achieved, manual intervention is not needed, multiple procedures are completed on the same equipment and the same die, cost is reduced, quality is improved, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle cap manufacturing, in particular to a multi-station stamping die for preparing bottle caps with center hole flanging. Background Art

[0002] The aluminum cover and plastic cover of the pharmaceutical aluminum-plastic combination cover are combined together, mainly through the plastic protrusion protruding from the center of the plastic cover passing through the center hole of the aluminum cover and riveting and fixing. When the plastic cover on the top of the aluminum-plastic bottle cap is opened, the plastic cover drives the aluminum cover of the joint to flip up, resulting in burrs on the aluminum cover, which poses a safety hazard. In order to ensure safe use, the structure of the aluminum cover is improved, such as Figure 1 As shown, the aluminum cover 100 includes a cover body 101 , a center hole 102 is arranged in the middle of the cover body 101 , and a flange 103 is arranged around the center hole 102 .

[0003] While the aluminum cover structure has been improved, the corresponding production mold cannot achieve flanging. The existing solution is to process the aluminum cover formed by stamping in the previous process through a flanging device. This multi-process discrete reprocessing method requires the purchase and installation of special flanging equipment, which takes up more production space and wastes manpower, resulting in high product production costs and unable to achieve full-process automation and intelligent production. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a multi-station stamping die for preparing bottle caps with center hole flanges, so as to reduce product production costs and facilitate the realization of full-process automated and intelligent production.

[0005] The technical solution of the utility model is:

[0006] A multi-station stamping die for preparing a bottle cap with a center hole flange, comprising an upper die assembly, a lower die assembly, a guide assembly and a die assembly, wherein the upper die assembly is movably connected to the lower die assembly through the guide assembly;

[0007] The mold assembly includes an upper mold and a lower mold;

[0008] The upper die mold comprises a punching upper die, a flanging upper die and a stretching upper die which are arranged on the upper die assembly along a set direction;

[0009] The lower die mold includes a punching lower punch, a flanging lower punch and a stretching lower punch arranged on the lower die assembly along a set direction, wherein the punching lower punch, the flanging lower punch and the stretching lower punch all correspond one-to-one to the positions of the punching upper die, the flanging upper die and the stretching upper die.

[0010] Furthermore, the upper die assembly includes an upper die top plate, an upper die seat, an upper die pad and an upper die fixing plate which are sequentially connected from top to bottom, and the upper die mold is fixedly disposed at the lower end of the upper die fixing plate.

[0011] Furthermore, the lower die assembly comprises a lower punch fixing plate, a lower die pad and a lower die seat which are sequentially connected from top to bottom, and the lower die mold is fixedly arranged at the upper end of the lower punch fixing plate.

[0012] Furthermore, the guide assembly includes a guide column and a guide sleeve, the guide column is arranged at the upper end of the lower mold assembly, and the upper mold assembly is movably arranged on the guide column through the guide sleeve.

[0013] Furthermore, the upper mold assembly is connected to a guide plate, the guide plate is connected to the guide sleeve, and a through hole for the guide column is provided on the guide plate.

[0014] Furthermore, the guide assembly is provided in plurality.

[0015] Furthermore, the upper mold and the lower mold are both provided in plurality, and the number of the upper mold and the number of the lower mold are the same.

[0016] Furthermore, a material guiding structure is respectively arranged on both sides of the lower punch fixing plate on the lower die pad.

[0017] Furthermore, the material guide structure includes a first material guide plate and a second material guide plate, and the first material guide plate and the second material guide plate are relatively fixed to the upper end of the lower mold pad.

[0018] Furthermore, the first material guide plate and the second material guide plate are both L-shaped plate structures.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The inner flange of the inner hole of the bottle cap prepared by the utility model makes the surface of the bottle cap smooth and burr-free, thereby enhancing the strength of the bottle cap and being safe and not hurting the hands;

[0021] 2. Through the improvement of the mold, the utility model can automatically feed materials and operate continuously without manual intervention. Multiple processes can be completed on the same equipment and the same mold, while reducing costs, improving quality and increasing efficiency.

[0022] 3. The utility model can realize continuous automatic production in multiple processes, and provides a good solution for realizing the full automation and intelligent production of the entire production process of bottle caps. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 The present invention is a bottom view of an aluminum cover in a medicinal aluminum-plastic composite cover according to the prior art.

[0025] Figure 2 It is a front view of a multi-station stamping die for preparing a bottle cap with a center hole flange according to an embodiment of the utility model.

[0026] Figure 3 It is a stereoscopic view of a multi-station stamping die for preparing a bottle cap with a center hole flange according to an embodiment of the utility model.

[0027] Figure 4 It is a stereoscopic view of an upper die assembly in a multi-station stamping die for preparing a bottle cap with a center hole flange according to an embodiment of the utility model.

[0028] Figure 5 It is a stereoscopic view of a lower die assembly in a multi-station stamping die for preparing a bottle cap with a center hole flange according to an embodiment of the utility model.

[0029] Figure 6 This is a physical picture of a material plate passing through the multi-station stamping die according to an embodiment of the utility model.

[0030] Figure 7 This is a physical picture of a bottle cap produced by the multi-station stamping die according to an embodiment of the utility model.

[0031] In the figure, 100 is an aluminum cover, 101 is a cover body, 102 is a center hole, 103 is a flange, 200 is an upper die assembly, 201 is an upper die top plate, 202 is an upper die seat, 203 is an upper die pad, 204 is an upper concave die fixing plate, 300 is a lower die assembly, 301 is a lower punch fixing plate, 302 is a lower die pad, 303 is a lower die seat, 400 is a guide assembly, 401 is a guide column, 402 is a guide sleeve, 500 is Mold assembly, 501 is the upper mold, 5011 is the punching upper die, 5012 is the flanging upper die, 5013 is the stretching upper die, 502 is the lower mold, 5021 is the punching lower punch, 5022 is the flanging lower punch, 5023 is the stretching lower punch, 600 is the material plate, 700 is the guide plate, 701 is the through hole, 800 is the material guide structure, 801 is the first material guide plate, and 802 is the second material guide plate. DETAILED DESCRIPTION

[0032] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0033] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The utility model will now be further described in conjunction with the accompanying drawings.

[0036] The utility model embodiment provides a multi-station stamping die for preparing a bottle cap with a center hole flange, such as Figures 2 to 5 As shown, the multi-station stamping die for preparing bottle caps with center hole flanges includes an upper die assembly 200, a lower die assembly 300, a guide assembly 400 and a die assembly 500, and the upper die assembly 200 is movably connected to the lower die assembly 300 through the guide assembly 400.

[0037] The mold assembly 500 includes an upper mold 501 and a lower mold 502 .

[0038] The upper die mold 501 includes a punching upper die 5011, a flanging upper die 5012 and a stretching upper die 5013 which are arranged on the upper die assembly 200 along a set direction;

[0039] The lower die mold 502 includes a punching lower punch 5021, a flanging lower punch 5022 and a stretching lower punch 5023 which are arranged on the lower die assembly 300 along a set direction, wherein the punching lower punch 5021, the flanging lower punch 5022 and the stretching lower punch 5023 all correspond one-to-one to the positions of the punching upper die 5011, the flanging upper die 5012 and the stretching upper die 5013.

[0040] When the multi-station stamping die is in operation, the material plate 600 is sent between the upper die assembly 200 and the lower die assembly 300, and then undergoes punching, center hole flanging, blanking, stretching and trimming to form a bottle cap, wherein the material plate 600 is usually a metal strip or sheet material, and one material plate 600 can punch out multiple bottle caps.

[0041] The punching operation is specifically that the material plate 600 passes through the first lower punch, i.e., the punching lower punch 5021, and the punching upper die 5011 punches the center hole downward and stretches downward to a certain depth to meet the flanging requirements. The waste material in the center hole leaks downward from the center hole of the punching lower punch 5021. At the same time, the punched strip material moves to the left to the next set of mold cores under the material collection control on the left to perform the center hole flanging operation.

[0042] The center hole flanging operation is specifically that the material part after the punching operation arrives between the upper flanging die 5012 and the lower flanging punch 5022, the upper flanging die 5012 is pressed down, and after being squeezed with the center point of the lower flanging punch 5022, the center hole flanging is completed, and finally enters the next set of mold cores for blanking, stretching and trimming operations.

[0043] The blanking, stretching and trimming operation is specifically that the strip material with the center hole already flanging is stretched into a bottle cap when the upper blanking knife of the third set of compound dies (stretching and forming lower punch 5023 and stretching and forming upper concave die 5013) presses down the lower blanking knife, and the circumferential waste of the bottle cap is cut off flatly at the same time, and the formed bottle cap can be separated from the stretching and forming lower punch 5023 by the action of the edge pressing ring spring set on the stretching and forming lower punch 5023. As an example only, the demoulding operation of the bottle cap can be that the punching rod of the punch press is linked downward with the upper die ejector pin to eject the bottle cap embedded in the upper die, and the bottle cap moves downward freely. During the falling process, the bottle cap and the trimming are separated and collected by the horizontal blowing device, and the tail material belt moves to the left and is wound up under the control of the left receiving device.

[0044] It should be noted that the demolding operation described above is an existing demolding process flow, and the components configured therein, such as the knockout rod and the upper mold ejector pin, are components commonly used in stamping dies for demolding materials. The multi-station stamping dies protected by the present utility model include but are not limited to the demolding methods listed above during specific demolding.

[0045] In some embodiments, a specific structure of the upper mold assembly 200 is provided, such as Figure 1 As shown, the upper die assembly 200 includes an upper die top plate 201 , an upper die base 202 , an upper die pad 203 and an upper die fixing plate 204 which are sequentially connected from top to bottom, and the upper die mold 501 is fixedly disposed at the lower end of the upper die fixing plate 204 .

[0046] In the structure of the upper die assembly 200, the upper die top plate 201, on the one hand, plays the role of the corresponding stamping power assembly (such as a punch press, a stamping cylinder, etc.), and on the other hand, is used to install the upper die base 202. The upper die pad plate 203 plays the role of buffering and installing the upper die fixing plate 204. The upper die fixing plate 204 is used to install the corresponding upper die mold 501.

[0047] In some embodiments, a specific structure of the lower mold assembly 300 is provided, such as Figure 2 As shown, the lower die assembly 300 includes a lower punch fixing plate 301 , a lower die pad 302 and a lower die seat 303 which are sequentially connected from top to bottom, and the lower die mold 502 is fixedly disposed on the upper end of the lower punch fixing plate 301 .

[0048] The lower mold assembly 300 in this embodiment does not move during operation, so the lower mold base 303 plays a supporting role and is placed at the bottom. The lower mold pad 302 plays a buffering role and installs the lower punch fixing plate 301. The lower punch fixing plate 301 is used to install the corresponding lower mold mold 502.

[0049] In some embodiments, Figure 2 and Figure 3 As shown, a material guiding structure 800 is respectively arranged on both sides of the lower punch fixing plate 301 on the lower die pad 302 .

[0050] Specifically, the material guide structure 800 includes a first material guide plate 801 and a second material guide plate 802, which are relatively fixed to the upper end of the lower die pad 302. The first material guide plate 801 and the second material guide plate 802 are both L-shaped plate structures.

[0051] The material guiding structure 800 mainly guides the metal strip or sheet material entering the multi-station stamping die to prevent the entering material sheet from tilting or tilting, so as to facilitate the realization of automated bottle cap production.

[0052] In some embodiments, a specific structure of the guide assembly 400 is provided, such as Figure 2As shown, the guide assembly 400 includes a guide column 401 and a guide sleeve 402 . The guide column 401 is disposed at the upper end of the lower mold assembly 300 , and the upper mold assembly 200 is movably disposed on the guide column 401 through the guide sleeve 402 .

[0053] Specifically, in order to guide more accurately, the guide assembly 400 is provided in multiple numbers, as an example only, Figure 2 As shown, there are four guide assemblies 400. The upper die assembly 200 is connected with a guide plate 700, which is connected with the guide sleeve 402. The guide plate 700 is provided with a through hole 701 for the guide column 401.

[0054] In some embodiments, Figure 4 and Figure 5 As shown, the upper mold 501 and the lower mold 502 are both set to multiple, and the number of the upper mold 501 and the lower mold 502 are the same. When a metal strip or sheet material is used as a material plate for feeding, the number of the upper mold 501 and the lower mold 502 can be determined according to the width of the material plate and the size of the bottle cap. If the width of the material plate is twice the size of the bottle cap to be prepared, then the upper mold 501 and the lower mold 502 can be set to two. It should be noted that the number of the upper mold 501 and the lower mold 502 is set according to the actual situation. When multiple upper molds 501 and lower molds 502 are provided, the production efficiency of the bottle caps can be greatly improved. Figure 6 As shown, this is a physical picture of the material plate passing through the multi-station stamping die. It can be seen from the figure that the material plate is fully utilized, which effectively reduces the loss of raw materials and further reduces the manufacturing cost.

[0055] like Figure 7 As shown in the figure, it is a real picture of the bottle cap prepared by the multi-station stamping die. It can be seen from the figure that the inner flange of the inner hole of the bottle cap prepared by the utility model is smooth and burr-free, and is safe and does not hurt the hand.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A multi-station stamping die for preparing a bottle cap with a center hole flange, characterized in that: It comprises an upper die assembly, a lower die assembly, a guide assembly and a mold assembly, wherein the upper die assembly is movably connected to the lower die assembly through the guide assembly; The mold assembly includes an upper mold and a lower mold; The upper die mold comprises a punching upper die, a flanging upper die and a stretching upper die which are arranged on the upper die assembly along a set direction; The lower die mold includes a punching lower punch, a flanging lower punch and a stretching lower punch arranged on the lower die assembly along a set direction, wherein the punching lower punch, the flanging lower punch and the stretching lower punch all correspond one-to-one to the positions of the punching upper die, the flanging upper die and the stretching upper die.

2. The multi-station stamping die for preparing a bottle cap with a center hole flange according to claim 1, characterized in that: The upper die assembly comprises an upper die top plate, an upper die seat, an upper die pad and an upper die fixing plate which are sequentially connected from top to bottom, and the upper die mold is fixedly arranged at the lower end of the upper die fixing plate.

3. The multi-station stamping die for preparing a bottle cap with a center hole flange according to claim 1, characterized in that: The lower die assembly comprises a lower punch fixing plate, a lower die pad and a lower die seat which are sequentially connected from top to bottom, and the lower die mold is fixedly arranged on the upper end of the lower punch fixing plate.

4. The multi-station stamping die for preparing a bottle cap with a center hole flange according to claim 1, characterized in that: The guide assembly comprises a guide column and a guide sleeve. The guide column is arranged at the upper end of the lower mold assembly, and the upper mold assembly is movably arranged on the guide column through the guide sleeve.

5. The multi-station stamping die for preparing a bottle cap with a center hole flange according to claim 4, characterized in that: The upper mold assembly is connected with a guide plate, the guide plate is connected with the guide sleeve, and the guide plate is provided with a through hole for the guide column.

6. The multi-station stamping die for preparing a bottle cap with a center hole flange according to claim 1, characterized in that: The guide assembly is provided in plurality.

7. The multi-station stamping die for preparing a bottle cap with a center hole flange according to claim 1, characterized in that: The upper mold and the lower mold are both provided in plurality, and the number of the upper mold and the number of the lower mold are the same.

8. The multi-station stamping die for preparing a bottle cap with a center hole flange according to claim 3, characterized in that: The lower die pad is provided with a material guiding structure on both sides of the lower punch fixing plate.

9. The multi-station stamping die for preparing a bottle cap with a center hole flange according to claim 8, characterized in that: The material guide structure includes a first material guide plate and a second material guide plate, and the first material guide plate and the second material guide plate are relatively fixed to the upper end of the lower mold pad.

10. The multi-station stamping die for preparing a bottle cap with a center hole flange according to claim 9, characterized in that: The first material guide plate and the second material guide plate are both L-shaped plate structures.

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