A punch press for crimping the rim of a circular bottle cap

Abstract

The utility model discloses a kind of round bottle cap hemming's stamping equipment, the middle part of processing platform is equipped with rotary feeding tray, the outside of rotary feeding tray is equipped with feeding chute, rack and discharging chute, pre-treatment stamping device and hemming stamping device are equipped on the rack, the integrated process of bottle cap from automatic feeding to hemming processing is realized by integration in this technical solution, effectively improve processing efficiency, rotating tray is combined with the arc-shaped material baffle around setting by feeding port, ensure the stability and accuracy of bottle cap in feeding process, reduce the deformation problem caused by transfer, carry out preliminary outer expansion treatment to bottle cap edge by pre-treatment processing position, reduce the risk of breakage when hemming, so that the hemming stamping device accurately completes the hemming processing of bottle cap, wherein the ejector device of stamping lower mould smoothly ejects the bottle cap of processing completion, facilitate air blow discharging, improve the efficiency and stability of bottle cap processing.

Description

Technical Field

[0001] This utility model relates to the technical field of bottle cap production equipment, specifically to a stamping equipment for curling the edge of a round bottle cap. Background Technology

[0002] Bottle caps are an important part of food and beverage packaging and are the first point of contact between consumers and the product. In the production of metal bottle caps, the edges of the cap opening need to be rolled to improve the appearance and sturdiness of the cap. However, some bottle caps with thin walls are prone to cracking during the rolling process, which leads to an increase in the defect rate.

[0003] Normally, after the bottle caps are stamped from the aluminum plate to form a concave shape, they are collected by air blowing. The untreated bottle caps are then manually taken to a designated station for edge pretreatment before being sent to the stamping equipment for edge rolling. This processing method results in low processing efficiency for bottle caps. In addition, the deformation of the bottle caps during the transfer process further increases the difficulty of the edge rolling process and the defect rate. Utility Model Content

[0004] To address the technical deficiencies in the background technology, this utility model proposes a stamping device for crimping the edges of circular bottle caps, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows: A stamping device for rolling the edge of a round bottle cap includes a processing platform. A rotating feeding plate is provided in the middle of the processing platform. A feeding slide, a frame, and a discharging slide are provided on the outer side of the rotating feeding plate. A pre-treatment stamping device and an edge rolling stamping device are provided on the frame. A pre-treatment processing position is provided below the pre-treatment stamping device on the rotating feeding plate, and a stamping processing position is provided below the edge rolling stamping device. The pre-processing stamping device includes a first stamping device and an outer expansion mold disposed at the output end of the first stamping device. The edge-rolling stamping device includes a second stamping device, an upper stamping mold disposed at the output end of the second stamping device, and a lower stamping mold disposed below the second stamping device. The stamping die has a stamping groove, and the stamping groove is provided with an ejection device, including an ejection panel and an elastic element located below the ejection panel. The ejection panel protrudes from the bottom plane of the stamping groove in the initial state and can move downward after being pressed.

[0005] As an improvement to the above solution, the rotating feeding tray includes a rotating tray, a fixed base, a drive device connected to the axis of the rotating tray, and an arc-shaped baffle plate surrounding the outside of the fixed base.

[0006] As an improvement to the above solution, the outer edge of the rotating material tray is provided with a plurality of feeding ports, which are arranged at equal intervals around the rotating material tray. The arc-shaped baffle is provided with a first opening corresponding to the position of the loading slide and a second opening corresponding to the position of the unloading slide.

[0007] As an improvement to the above solution, the pre-processing stamping device further includes a positioning mold disposed below the first stamping device. The top of the positioning mold is provided with a positioning groove. The positioning mold is detachable from the fixed base. The positioning mold is inserted into the fixed base from top to bottom to achieve fixation.

[0008] As an improvement to the above solution, the outward expansion mold includes a first axial mold body and a first mold body sleeved on the outer surface of the first axial mold body. The first mold body is movably connected to the first axial mold body, and the bottom outer surface of the first mold body is provided with an arc-shaped outward expansion surface.

[0009] As an improvement to the above solution, the stamping die is provided with an upward-opening stamping groove, and a second axial mold body extending vertically upward is provided at the axial position of the stamping groove. The ejector panel and the elastic element are arranged around the outside of the second axial mold body, and the ejector panel protrudes from the top plane of the second axial mold body in the initial state.

[0010] As an improvement to the above solution, the stamping upper die includes a third axial mold body aligned with the second axial mold body and a second mold body sleeved on the outer surface of the third axial mold body. The second mold body is movably connected to the third axial mold body, and the bottom of the second mold body is provided with an arc-shaped inward rolled surface.

[0011] The beneficial effects of this utility model are as follows: This technical solution integrates a rotating feeding tray, a pre-treatment stamping device, and a crimping stamping device to achieve an integrated process from automatic feeding to crimping of bottle caps, effectively improving processing efficiency. The rotating feeding tray, through the feeding port combined with the surrounding arc-shaped baffle, ensures the stability and accuracy of the bottle caps during feeding, reducing deformation caused by transfer. The pre-treatment processing station performs preliminary outward expansion treatment on the bottle cap edges, reducing the risk of breakage during crimping. This allows the crimping stamping device to accurately complete the crimping of the bottle caps. The ejection device of the stamping die smoothly ejects the processed bottle caps, facilitating air-blowing unloading and improving the efficiency and stability of bottle cap processing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the stamping equipment of this utility model.

[0013] Figure 2 This is a schematic diagram of the rotating feeding tray structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the pretreatment stamping device of this utility model.

[0015] Figure 4 This is a schematic diagram of the edge-rolling and stamping device of this utility model.

[0016] Figure 5 This is a schematic diagram of the positioning mold structure of this utility model.

[0017] Figure 6 This is a schematic diagram of the stamping die structure of this utility model.

[0018] The components include: processing platform 1, pre-processing station 11, stamping station 12, rotating loading plate 2, rotating material plate 21, feeding port 211, fixed base 22, driving device 23, arc-shaped baffle plate 24, first opening 241, second opening 242, loading slide 3, frame 4, unloading slide 5, pre-processing stamping device 6, first stamping device 61, outer expansion mold 62, first shaft mold body 621, first mold body 622, arc-shaped outer expansion surface 623, positioning mold 63, positioning groove 631, edge rolling stamping device 7, second stamping device 71, upper stamping mold 72, third shaft mold body 721, second mold body 722, arc-shaped inner rolling surface 723, lower stamping mold 8, stamping groove 81, second shaft mold body 82, ejection device 9, ejection panel 91, and elastic element 92. Detailed Implementation

[0019] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0020] This utility model discloses a stamping equipment for rolling the edge of a round bottle cap, including a processing platform 1. A rotating feeding plate 2 is provided in the middle of the processing platform 1. A feeding slide 3, a frame 4 and a discharging slide 5 are provided on the outer side of the rotating feeding plate 2. A pre-treatment stamping device 6 and an edge rolling stamping device 7 are provided on the frame 4. A pre-treatment processing position 11 is provided below the pre-treatment stamping device 6 on the rotating feeding plate 2, and a stamping processing position 12 is provided below the edge rolling stamping device 7. It should be noted that the bottle cap enters the rotating feeding tray 2 through the feeding chute 3 and is conveyed to the pre-treatment stamping position through the feeding port 211. The upper edge of the bottle cap is expanded outward, so that the upper edge of the bottle cap is in an outward-turned state. Then, the pre-treated bottle cap is conveyed to the edge-rolling stamping device 7 through the rotating feeding tray 2. The edge-rolling stamping device 7 directly turns outward to form an edge, realizing the integrated process of bottle cap from automatic feeding to edge-rolling processing, which effectively improves processing efficiency. At the same time, the outward expansion through pre-treatment before edge-rolling stamping reduces the risk of deformation and breakage of the bottle cap during edge-rolling stamping. Furthermore, the pre-processing stamping device 6 includes a first stamping device 61 and an outer expansion mold 62 disposed at the output end of the first stamping device 61, and the edge-rolling stamping device 7 includes a second stamping device 71, an upper stamping mold 72 disposed at the output end of the second stamping device 71, and a lower stamping mold 8 disposed below the second stamping device 71. When the first stamping device 61 is started, it will drive the outward expansion mold 62 to move downward, and perform preliminary outward expansion processing on the bottle cap placed in the positioning mold 63. Under the drive of the first mold body 622 of the outward expansion mold 62, the arc-shaped outward expansion surface 623 on the outer side of its bottom will contact the upper edge of the bottle cap and gradually turn it outward to form a pre-processing effect. Furthermore, in the above scheme, the outward expansion mold 62 includes a first axial mold body 621 and a first mold body 622 sleeved on the outer surface of the first axial mold body 621. The first mold body 622 is movably connected to the first axial mold body 621, and the bottom outer surface of the first mold body 622 is provided with an arc-shaped outward expansion surface 623.

[0021] Furthermore, in the above scheme, the stamping die 8 is provided with an upward-opening stamping groove 81, and a second axial mold body 82 extending vertically upward is provided at the axial position of the stamping groove 81. The ejector panel 91 and the elastic element 92 are arranged around the outside of the second axial mold body 82, and the ejector panel 91 protrudes from the top plane of the second axial mold body 82 in the initial state.

[0022] Furthermore, in the above scheme, the stamping upper die 72 includes a third axial die 721 aligned with the second axial die 82 and a second die 722 sleeved on the outer surface of the third axial die 721. The second die 722 is movably connected to the third axial die 721, and the bottom of the second die 722 is provided with an arc-shaped inward rolled surface 723. The axial position of the third axial die 721 is provided with a retractable spring rod, which is used to assist demolding after the edge rolling is completed, so that the bottle cap is separated from the third axial die 721.

[0023] Specifically, after the second stamping device 71 of the edge-rolling stamping device 7 is started, it will drive the upper stamping die 72 to move downward and cooperate with the lower stamping die 8 to complete the edge-rolling process. At this time, under the drive of the third axis die 721, the arc-shaped inner rolled surface 723 on the bottom inner side of the second mold body 722 of the upper stamping die 72 will contact the upper edge of the pre-treated bottle cap and gradually roll it into the required edge-rolling shape. At the same time, after the stamping is completed, the ejection device 9 in the lower stamping die 8 will use the elastic force of the elastic element 92 to push the ejection panel 91 upward and smoothly eject the processed bottle cap from the stamping groove 81, which is convenient for subsequent air blowing unloading. In addition, the drive device 23 of the rotating feeding tray 2 will continuously drive the rotating tray 21 to rotate, so that the feeding port 211 is aligned with the feeding slide 3, the pre-treatment processing position 11 and the stamping processing position 12 in sequence, realizing the continuous feeding, pre-treatment and edge rolling of bottle caps. Throughout the process, the arc-shaped baffle 24 will ensure the stability and accuracy of the bottle caps during the feeding process, preventing them from falling off or shifting from the feeding port 211. Furthermore, in the above scheme, the stamping die 8 has a stamping groove 81, and the stamping groove 81 is provided with an ejection device 9, including an ejection panel 91 and an elastic element 92 located below the ejection panel 91. The ejection panel 91 protrudes from the bottom plane of the stamping groove 81 in the initial state and can move downward after being pressed.

[0024] Furthermore, in the above scheme, the rotating feeding tray 2 includes a rotating tray 21, a fixed base 22, a driving device 23 connected to the axis of the rotating tray 21, and an arc-shaped baffle plate 24 surrounding the outside of the fixed base 22.

[0025] Furthermore, in the above scheme, the outer edge of the rotating material tray 21 is provided with a plurality of feeding ports 211, the feeding ports 211 are arranged at equal intervals around the rotating material tray 21, the arc-shaped baffle plate 24 is provided with a first opening 241 corresponding to the position of the loading slide 3, and a second opening 242 corresponding to the position of the unloading slide 5.

[0026] Furthermore, in the above scheme, the pre-processing stamping device 6 also includes a positioning mold 63 disposed below the first stamping device 61. The top of the positioning mold 63 is provided with a positioning groove 631. The positioning mold 63 is detachable from the fixed base 22. The positioning mold 63 is inserted into the fixed base 22 from top to bottom to achieve fixation.

[0027] The positioning groove 631 on the positioning mold 63 is shaped to match the bottom shape of the bottle cap, enabling precise positioning of the bottle cap during pre-processing. This ensures accurate positioning of the bottle cap during pre-processing, providing a good foundation for subsequent edge-rolling. Furthermore, this detachable design allows the positioning mold 63 to be replaced according to different bottle cap specifications, improving the versatility and flexibility of the equipment and meeting diverse production needs. When processing bottle caps of different sizes or shapes, simply remove the original positioning mold 63 from the fixed base 22 and insert a new positioning mold 63 of the corresponding specification.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A stamping device for crimping the edge of a round bottle cap, characterized in that, The equipment includes a processing platform (1), a rotating feeding plate (2) in the middle of the processing platform (1), a feeding slide (3), a frame (4) and a discharging slide (5) on the outer side of the rotating feeding plate (2), a pre-treatment stamping device (6) and a curling stamping device (7) on the frame (4), a pre-treatment processing position (11) is provided below the pre-treatment stamping device (6) on the rotating feeding plate (2), and a stamping processing position (12) is provided below the curling stamping device (7). The pre-processing stamping device (6) includes a first stamping device (61) and an outer expansion mold (62) disposed at the output end of the first stamping device (61). The edge-rolling stamping device (7) includes a second stamping device (71), an upper stamping mold (72) disposed at the output end of the second stamping device (71), and a lower stamping mold (8) disposed below the second stamping device (71). The stamping die (8) has a stamping groove (81), and the stamping groove (81) is provided with an ejection device (9), including an ejection panel (91) and an elastic element (92) located below the ejection panel (91). The ejection panel (91) protrudes from the bottom plane of the stamping groove (81) in the initial state and can move downward after being pressed.

2. The stamping equipment for crimping the edge of a circular bottle cap according to claim 1, characterized in that, The rotating feeder (2) includes a rotating feeder (21), a fixed base (22), a drive device (23) connected to the axis of the rotating feeder (21), and an arc-shaped baffle (24) surrounding the outside of the fixed base (22).

3. The stamping equipment for crimping the edge of a circular bottle cap according to claim 2, characterized in that, The outer edge of the rotating material tray (21) is provided with a plurality of feeding ports (211), the feeding ports (211) are arranged at equal intervals around the rotating material tray (21), the arc-shaped baffle (24) is provided with a first opening (241) corresponding to the position of the loading slide (3), and a second opening (242) corresponding to the position of the unloading slide (5).

4. The stamping equipment for crimping the edge of a circular bottle cap according to claim 2, characterized in that, The pre-processing stamping device (6) also includes a positioning mold (63) disposed below the first stamping device (61). The top of the positioning mold (63) is provided with a positioning groove (631). The positioning mold (63) is detachable from the fixed base (22). The positioning mold (63) is inserted into the fixed base (22) from top to bottom to achieve fixation.

5. The stamping equipment for crimping the edge of a circular bottle cap according to claim 2, characterized in that, The expansion mold (62) includes a first core mold (621) and a first mold (622) sleeved on the outer surface of the first core mold (621). The first mold (622) is movably connected to the first core mold (621), and the bottom outer surface of the first mold (622) is provided with an arc-shaped expansion surface (623).

6. The stamping equipment for crimping the edge of a circular bottle cap according to claim 1, characterized in that, The stamping die (8) is provided with an upward-opening stamping groove (81), and a second axial mold body (82) extending vertically upward is provided at the axial position of the stamping groove (81). The ejector panel (91) and the elastic element (92) are arranged around the outside of the second axial mold body (82). The ejector panel (91) protrudes from the top plane of the second axial mold body (82) in the initial state.

7. The stamping equipment for crimping the edge of a circular bottle cap according to claim 6, characterized in that, The stamping die (72) includes a third axial mold (721) aligned with the second axial mold (82) and a second mold (722) sleeved on the outer surface of the third axial mold (721). The second mold (722) is movably connected to the third axial mold (721), and the bottom of the second mold (722) is provided with an arc-shaped inward rolled surface (723).

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