A progressive molding die and molding process for easy-open beer bottles

Abstract

This invention discloses a progressive molding die and molding process for easy-open beer bottle caps. The progressive molding die includes a die frame and a strip material. The die frame is sequentially equipped with a punching assembly, a bubble-forming and trimming assembly, a ring-embedding and engraving assembly, a riveting and shaping assembly, and a blanking and forming assembly. The punching assembly punches positioning holes, overlap holes, and partition holes on the strip material. The bubble-forming and trimming assembly performs three-stage bubble-forming and trimming on the strip material. The ring-embedding and engraving assembly performs ring-embedding and engraving on the strip material. The riveting and shaping assembly rivets and shapes the pull ring to the cap on the strip material. The blanking and forming assembly performs deep drawing and waste removal on the strip material. This invention achieves a series of step-by-step forming processes for the cap body using a continuously forming progressive die. The entire process is carried out on a strip material, reducing quality problems during positioning and conveying. Simultaneously, the belt conveyor increases the conveying speed, thereby improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of stamping technology, and in particular to a progressive molding die and molding process for easy-open beer bottle caps. Background Technology

[0002] Easy-open caps for beer bottles are assembled and sealed with the bottle using a claw-pressing or rolling method. They are used for beer and other beverage packaging, and their usage has been steadily increasing in recent years. Currently, the most common manufacturing process involves punching a basic cap from a sheet material and then forming the cap using a molded cap.

[0003] Sheet metal stamping for basic cap production uses a single sheet of material as the forming material. Single-station or multi-station compound dies are used to produce the basic cap, which is then deep-drawn into an easy-open cap preform. The formed basic cap is mechanically conveyed to the forming equipment to complete the easy-open cap forming process for beer bottles. On the forming equipment, the basic cap is positioned via slots on a turntable and conveyed to various forming dies for final forming. The specific forming process route is: basic cap forming, bubble forming, ring insert forming, engraving forming, and riveting.

[0004] The production process of sheet metal punching basic cap + forming cap has the advantages of convenient printing and high utilization rate for caps with fixed pattern requirements. However, the forming process cannot reposition the pattern, and the forming process needs to be reordered, resulting in low production efficiency, relatively unstable product quality, and problems such as random pattern position, easy loosening of pull ring, missing rivets, easy detachment of pull ring, and high opening force required.

[0005] Currently, product demand is increasing, and the market is dominated by non-printed caps. However, customers' requirements for product quality are constantly rising. Therefore, there is an urgent need for a molding process that can combine continuous progressive forming technology with deep drawing technology, and is more efficient and of higher quality, in order to effectively improve the stability of product quality and increase production efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide a progressive molding die and molding process for easy-open beer bottle caps. The progressive die, which is used for continuous molding, enables a series of step-by-step molding processes for the cap body. The entire process is completed on a conveyor belt. The corresponding molding processes are completed by components at different stations on the die. This effectively reduces quality problems caused during positioning and conveying, achieves a high-efficiency and high-quality molding process, and improves product quality and production efficiency.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] A progressive molding die for an easy-open cap on a beer bottle, comprising:

[0009] The mold frame serves as the carrier for the entire mold.

[0010] The strip is the material of the workpiece and also the carrier for workpiece forming and conveying;

[0011] The mold frame is sequentially equipped with a punching assembly, a bubble trimming assembly, an insert ring engraving assembly, a riveting and shaping assembly, and a blanking and forming assembly.

[0012] The punching assembly is used to punch positioning holes, overlap holes, and partition holes on the strip.

[0013] The foaming and trimming assembly is used to perform three foaming and trimming processes on the strip.

[0014] The ring-insertion and scribing assembly is used to perform ring-insertion forming and scribing forming on the strip.

[0015] The riveting and shaping assembly is used to rivet and shape the pull ring and the cover on the strip;

[0016] The blanking and forming assembly is used to perform deep drawing and waste cutting on the strip.

[0017] Furthermore, the mold frame includes an upper mold plate, a lower mold plate, a guide sleeve, a guide pillar, a lower limit block, an upper limit block, an upper mold spring sleeve, a rectangular compression spring, a spring pad, a large cylinder sleeve, a large piston, a small cylinder sleeve, and a small piston;

[0018] The upper template is the mounting base plate for the upper mold of the entire mold, and the lower template is the mounting base plate for the lower mold of the entire mold. The upper template and the lower template are correspondingly set. The upper template is connected to the guide post, and the lower template is connected to the guide sleeve. The upper template and the lower template are slidably connected through the guide post and the guide sleeve. The lower end of the lower limit block is connected to the lower template, and the upper end of the upper limit block is connected to the upper template. The lower limit block and the upper limit block are correspondingly set. The upper mold spring sleeve is set on one side of the bottom end of the upper template. The rectangular compression spring is set inside the upper mold spring sleeve, and the lower end of the rectangular compression spring is connected to a spring washer. The top end of the lower template is set with a small cylinder sleeve, and the small cylinder sleeve is set with a small piston inside. The bottom end of the upper template is set with a large cylinder sleeve, and the large cylinder sleeve is set with a large piston inside.

[0019] Furthermore, the punching assembly includes a punching upper die pad, a punching upper die fixing plate, a partition hole punch, an overlap hole punch, a positioning hole punch, a guide pin, a safety guide pin, a punching lower die pad, a punching lower die fixing plate, an overlap combined die, a punching lower die stripper plate, and a partition combined die.

[0020] The upper punching die pad is connected to the upper template, and the lower punching die pad is connected to the lower template. The upper punching die pad and the lower punching die pad are correspondingly arranged. The bottom end of the upper punching die pad is connected to the upper punching die fixing plate, and the top end of the lower punching die pad is connected to the lower punching die fixing plate. The top end of the lower punching die fixing plate is connected to the lower punching die unloading plate. The upper punching die fixing plate is provided with the partition hole punch, and the lower punching die fixing plate is provided with the partition combination die. The partition hole punch and the partition combination die are compatible. The upper punching die fixing plate is also provided with the overlapping hole punch and the positioning hole punch. The lower punching die fixing plate is provided with the overlapping combination die. The overlapping combination die is adapted to the overlapping hole punch and the positioning hole punch respectively. The bottom end of the upper punching die fixing plate is provided with a guide pin. The lower punching die fixing plate and the lower punching die unloading plate are respectively provided with guide holes adapted to the guide pin. The upper punching die fixing plate is provided with a safety guide pin. The lower punching die fixing plate and the lower punching die unloading plate are respectively provided with safety holes adapted to the safety guide pin.

[0021] Furthermore, the bubble-forming and trimming assembly includes a first concave mold core, a first lower mold, a first convex mold core, a second concave mold core, a second convex mold core, a third concave mold core, a third convex mold core, a trimming upper mold pressing block, a countersunk rib upper mold core, a countersunk rib lower mold core, a trimming convex mold, and a trimming concave mold;

[0022] The bottom end of the upper template is sequentially provided with the first concave die core, the second concave die core, the third concave die core, and the trimming die. The top end of the lower template is sequentially provided with the first convex die core, the second convex die core, the third convex die core, and the trimming convex die. The first convex die core is embedded in the first lower die. The first concave die core is adapted to the first convex die core. The second concave die core is adapted to the second convex die core. The third concave die core is adapted to the third convex die core. The trimming die has the trimming upper die pressing block embedded inside. The trimming convex die has the countersunk rib lower die core inside. The trimming upper die pressing block has the countersunk rib upper die core inside. The countersunk rib upper die core is adapted to the countersunk rib lower die core. The trimming convex die is adapted to the trimming die.

[0023] Furthermore, the ring-embedded scribing assembly includes a ring-embedded forming pressure plate, a ring-embedded forming upper mold core, a ring-embedded forming lower mold core, a ring-embedded forming lower mold, a scribing die core, and a scribing lower mold core;

[0024] The bottom end of the upper template is provided with the upper ring forming mold core and the scribing die core in sequence, and the top end of the lower template is provided with the lower ring forming mold core and the scribing die core in sequence. The outer side of the upper ring forming mold core is provided with the ring forming pressure plate, and the lower ring forming mold core is fitted inside the lower ring forming mold core. The upper ring forming mold core and the lower ring forming mold core are adapted to each other, and the lower scribing die core is adapted to the scribing die core.

[0025] Furthermore, the riveting and shaping assembly includes a lower die for the ring feeding channel, an upper plate for the ring feeding channel, a riveting head, a lower die for riveting and shaping, an upper die core for riveting, an upper die for riveting, a lower die for shaping, an upper die core for shaping, an upper die for shaping, and a pressure ring for the upper die for shaping.

[0026] The bottom end of the upper template is provided with the riveting upper mold and the shaping upper mold in sequence, and the top end of the lower template is provided with the riveting shaping lower mold and the shaping lower mold in sequence. The riveting upper mold core is embedded inside the riveting upper mold, and the riveting head is embedded inside the riveting shaping lower mold. The riveting upper mold core is adapted to the riveting head. The shaping upper mold pressure ring is provided outside the shaping upper mold, and the shaping lower mold core is embedded inside the shaping lower mold. The shaping upper mold is adapted to the shaping lower mold. The ring feeding channel lower mold is provided at the top end of the lower template, and the ring feeding channel upper plate is provided at the top end of the ring feeding channel lower plate. The riveting upper mold is matched with the material feeding holes of the ring feeding channel upper plate and the ring feeding channel lower plate, respectively.

[0027] Furthermore, the blanking forming assembly includes a punch and die pressure ring, a punch and die, a forming pressure column, a lower die core, a lower forming die, a lower forming die ejector ring, a waste cutting upper die fixing plate, a waste cutting small cutter, a waste cutting cutter and a waste cutting lower die;

[0028] The bottom end of the upper template is provided with the punch and die and the upper die fixing plate for cutting waste material in sequence. The punch and die pressure ring is provided on the outside of the punch and die. The forming pressure column is embedded in the inside of the punch and die. The waste material small cutter is embedded in the inside of the upper die fixing plate for cutting waste material. The bottom end of the lower template is provided with the lower die for forming and the lower die for cutting waste material in sequence. The lower die core is embedded in the inside of the lower die for forming. The lower die top ring for forming is provided between the lower die for forming and the lower die core. The forming pressure column is adapted to the lower die core. The waste material cutter is provided on the outside of the upper die fixing plate for cutting waste material. The waste material cutter is located to the right of the waste material small cutter.

[0029] Furthermore, the punching assembly, the bubble trimming assembly, the ring engraving assembly, the riveting and shaping assembly, and the blanking forming assembly each further include a top material structure;

[0030] The top material structure includes an upper pad plate, an upper positioning plate, a pressure rod, a discharge plate, a guide plate, a top material column, a lower positioning plate, and a top column;

[0031] The upper positioning plate is connected to the bottom end of the upper pad. The pressure rods are respectively arranged on both sides of the upper positioning plate. The lower positioning plate is correspondingly arranged at the bottom end of the upper positioning plate. The guide plates are respectively arranged on both sides of the top end of the lower positioning plate. The unloading plates are respectively arranged at the top end of the two guide plates. The top pillars are respectively arranged on both sides of the interior of the lower positioning plate. The positions of the two top pillars correspond to the two pressure rods. The top material column is arranged inside the guide plate. The top material column is located between the pressure rod and the top pillar. The unloading plate has a through hole adapted to the pressure rod. The guide plate has a groove adapted to the pressure rod.

[0032] The present invention also provides a progressive molding process for easy-open beer bottle caps, which uses the aforementioned progressive molding mold for processing, including: punching, bubble formation one, bubble formation two, bubble formation three, edge trimming, ring embedding, engraving, riveting, shaping, blanking and deep drawing, and waste removal.

[0033] Furthermore, the progressive forming process includes the following steps:

[0034] S1: Positioning, the strip material with the processed ends is fed into the forming mold for initial positioning, waiting to be fed in;

[0035] S2: Punching, the material strip is fed intermittently, and during the feeding stop time, positioning holes, overlap holes and partition holes are punched out on the material strip in sequence;

[0036] S3: Bubbling, which includes the first bubble, the second bubble, and the third bubble in sequence; when the material strip enters the bubble cutting assembly, the first bubble is to thin the material in the forming area to form a spherical bubble, preparing the rivet material; the second bubble is to initially shape the spherical bubble into a rivet bubble; and the third bubble is to form it to the set rivet size and shape.

[0037] S4: Trimming, cutting the material intended for molding the cover off the strip, leaving four overlapping edges to connect with the strip;

[0038] S5: Ring forming, which involves drawing the strip to form a recessed platform and reinforcing rib structure for riveting rings;

[0039] S6: Scrubbing forming, punching out a narrow groove of a certain depth along the set trajectory of the material strip;

[0040] S7: Riveting, riveting the pull ring used to pry open the engraved line to the insert ring surface as required, and riveting it together with the bubble from the previous process;

[0041] S8: Shaping, trimming the broken edge of the pull ring and removing burrs;

[0042] S9: Blanking and stretching: The material to be formed is completely cut off, then drawn into a complete product structure, and the formed easy-open lid is sent out of the mold;

[0043] S10: Cut waste material, cut the remaining material strip after the cover body has been formed into sheets for recycling.

[0044] The present invention discloses the following technical effects:

[0045] (1) This application divides the product forming into different processes according to the function and forming requirements, integrates all processes into the strip according to a certain rule, and designs an auxiliary forming structure to connect the processes on the strip. The strip is designed with continuous and equidistant positioning holes, and each station forming mold is designed. The positioning holes and process parts are used to form a three-dimensional cover structure from the flat thin plate blank step by step. Finally, the strip is cut off and drawn into a deep shape, and the waste strip is shredded and collected.

[0046] (2) The material belt is the material of the workpiece and also the carrier for the forming and conveying of the product in the process. As long as the material belt is continuously fed into the mold at a certain step distance, the corresponding process forming can be completed through different stations on the mold. Because the forming is always carried out on the material belt, the quality problems generated during the positioning and conveying process are reduced. At the same time, the belt conveyor can improve the conveying speed, thereby improving the production efficiency.

[0047] Therefore, this invention achieves a series of step-by-step forming processes for the cover body through a progressive mold with continuous forming. The entire process is completed on the material strip, and the corresponding forming processes are completed by components at different stations on the mold. This effectively reduces quality problems caused during positioning and conveying, achieves a high-efficiency and high-quality forming process, and improves product quality and production efficiency. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1-1 A process layout diagram of the progressive molding die for easy-open beer bottles provided by the present invention;

[0050] Figure 1-2 A schematic diagram of the three-stage bubbling process of the progressive molding die for the easy-open cap of a beer bottle provided by the present invention;

[0051] Figure 1-3 A schematic diagram of the punching process for the progressive molding die for easy-open beer bottles provided by the present invention;

[0052] Figure 1-4 A schematic diagram of the cut edge of the progressive molding die for easy-open beer bottles provided by the present invention;

[0053] Figure 1-5 A riveting diagram of the progressive molding die for an easy-open beer bottle provided by the present invention;

[0054] Figure 1-6 A schematic diagram of the blanking and deep drawing of the finished cap of the progressive molding die for easy-open beer bottle caps provided by the present invention;

[0055] Figure 2-1 A cross-sectional view of the progressive molding die for an easy-open cap beer bottle provided by the present invention;

[0056] Figure 2-2 A top view of the progressive molding die for an easy-open cap beer bottle provided by the present invention;

[0057] Figure 3 This is a schematic diagram of the mold frame structure in an embodiment of the present invention;

[0058] Figure 4 This is a schematic diagram of the punching assembly in an embodiment of the present invention;

[0059] Figure 5 This is a schematic diagram of the structure of the foaming and trimming component in an embodiment of the present invention;

[0060] Figure 6 This is a schematic diagram of the structure of the ring-embedded scribing assembly in an embodiment of the present invention;

[0061] Figure 7 This is a schematic diagram of the riveting and shaping assembly in an embodiment of the present invention;

[0062] Figure 8 This is a schematic diagram of the blanking and forming component in an embodiment of the present invention;

[0063] Figure 9 This is a schematic diagram of the top material structure in an embodiment of the present invention;

[0064] Explanation of reference numerals in the attached drawings: A, mold base; B, punching assembly; C, bubble trimming assembly; D, insert ring engraving assembly; E, ring feeding channel; F, riveting and shaping assembly; G, blanking and forming assembly; H, strip material;

[0065] 301. Upper mold plate; 302. Lower mold plate; 303. Guide sleeve; 304. Guide pillar; 305. Lower limit block; 306. Upper limit block; 307. Upper mold spring sleeve; 308. Rectangular compression spring; 309. Spring washer; 310. Small cylinder liner; 311. Small piston; 312. Large cylinder liner; 313. Large piston;

[0066] 401. Upper punch die pad; 402. Upper punch die fixing plate; 403. Partition hole punch; 404. Edge hole punch; 405. Positioning hole punch; 406. Guide pin; 407. Safety guide pin; 408. Lower punch die pad; 409. Lower punch die fixing plate; 410. Edge combination die; 411. Lower punch die stripper plate; 412. Partition combination die;

[0067] 501. First die core; 502. First lower die; 503. First punch core; 504. Second die core; 505. Second punch core; 506. Third die core; 507. Third punch core; 508. Trimming upper die pressing block; 509. Countersunk rib upper die core; 510. Countersunk rib lower die core; 511. Trimming punch; 512. Trimming die.

[0068] 601. Ring-forming pressure plate; 602. Ring-forming upper mold core; 603. Ring-forming lower mold core; 604. Ring-forming lower mold; 605. Engraving lower mold core; 606. Engraving die core;

[0069] 701. Lower die for the ring feeding channel; 702. Upper plate for the ring feeding channel; 703. Riveting head; 704. Lower die for riveting and forming; 705. Upper die core for riveting; 706. Upper die for riveting; 707. Lower die for shaping; 708. Lower die core for shaping; 709. Upper die for shaping; 710. Pressing ring for the upper die for shaping;

[0070] 801. Punch and die pressure ring; 802. Punch and die; 803. Forming pressure column; 804. Lower die core; 805. Lower forming die; 806. Lower forming die ejector ring; 807. Scrap material cutting upper die fixing plate; 808. Scrap material cutter; 809. Scrap material cutting blade; 810. Scrap material cutting lower die;

[0071] 901. Upper pad; 902. Upper positioning plate; 903. Pressure rod; 904. Unloading plate; 905. Guide plate; 906. Top column; 907. Lower positioning plate; 908. Top column. Detailed Implementation

[0072] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0073] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0074] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0075] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0076] The purpose of this invention is to provide a progressive molding die and molding process for easy-open beer bottle caps. The progressive die, which is used for continuous molding, enables a series of step-by-step molding processes for the cap body. The entire process is completed on a conveyor belt. The corresponding molding processes are completed by components at different stations on the die. This effectively reduces quality problems caused during positioning and conveying, achieves a high-efficiency and high-quality molding process, and improves product quality and production efficiency.

[0077] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.

[0078] See Figure 2-1 , Figure 2-2 and Figures 3 to 9As shown, this embodiment of the invention provides a progressive molding die for easy-open beer bottle caps, comprising: a die frame A and a strip H; the die frame A serves as the carrier for the entire die; the strip H is the material of the workpiece and also serves as the carrier for workpiece forming and conveying; the die frame A is sequentially provided with a punching assembly B, a bubble-forming and trimming assembly C, a ring-embedding and engraving assembly D, a riveting and shaping assembly F, and a blanking and forming assembly G; the punching assembly B is used to punch positioning holes, overlap holes, and partition holes on the strip H; the bubble-forming and trimming assembly C is used to perform three-stage bubble-forming and trimming on the strip H; the ring-embedding and engraving assembly D is used to perform ring-embedding and engraving on the strip H; the riveting and shaping assembly F is used to rivet and shape the pull ring to the cap on the strip H; and the blanking and forming assembly G is used to perform deep drawing and waste cutting on the strip H.

[0079] Specifically, such as Figure 3 As shown, the mold frame includes an upper mold plate 301, a lower mold plate 302, a guide sleeve 303, a guide post 304, a lower limit block 305, an upper limit block 306, an upper mold spring sleeve 307, a rectangular compression spring 308, a spring pad 309, a small cylinder liner 310, a small piston 311, a large cylinder liner 312, and a large piston 313.

[0080] The upper template 301 is the mounting base plate for the upper mold of the whole mold, and the lower template 302 is the mounting base plate for the lower mold of the whole mold. The upper template 301 and the lower template 302 are set accordingly. The guide post 304 is fitted into the guide sleeve 303. The two ends of the guide post 304 are connected to the upper template 301 and the lower template 302 respectively. The lower end of the lower limit block 305 is connected to the lower template 302, and the upper end of the upper limit block 306 is connected to the upper template 301. The upper mold spring sleeve 307 is set on one side of the bottom end of the upper template 301. The rectangular compression spring 308 is set inside the upper mold spring sleeve 307. The lower end of the rectangular compression spring 308 is connected to the spring pad 309. The top end of the lower template 302 is set with a small cylinder sleeve 310. The small cylinder sleeve 310 is set with a small piston 311 inside. The bottom end of the upper template 301 is set with a large cylinder sleeve 312. The large cylinder sleeve 312 is set with a large piston 313 inside.

[0081] Specifically, the guide sleeve 303 and guide post 304 realize the positioning and motion guidance between the upper mold templates; the lower limit block 305 and upper limit block 306 limit the bottom dead center of the mold to ensure the consistency of the bottom dead center of the mold stroke; the upper mold spring sleeve 307, rectangular compression spring 308 and spring pad 309 set on the upper template 301 are the power sources for edge cutting, ring insertion and shaping pressing, respectively; the small cylinder sleeve 310 and small piston 311 are the power sources for the center ring pressing of blanking and deep drawing forming; and the large cylinder sleeve 312 and large piston 313 are the power sources for blanking and deep drawing edge pressing.

[0082] Mold frame A is the mounting platform for the entire progressive station mold and is the basic structure of the mold. In addition to providing basic functions such as guiding, limiting, and positioning, the power cylinders and springs of the forming structure of each process are arranged in mold frame A. The lifting mechanism of strip H, the positioning and unloading of strip H are all installed on mold frame A. The station mold only guides, positions and forms the workpiece.

[0083] Specifically, such as Figure 4 As shown, the punching assembly B includes a punching upper die pad 401, a punching upper die fixing plate 402, a partition hole punch 403, an overlap hole punch 404, a positioning hole punch 405, a guide pin 406, a safety guide pin 407, a punching lower die pad 408, a punching lower die fixing plate 409, an overlap combined die 410, a punching lower die stripper plate 411, and a partition combined die 412;

[0084] The upper punching die pad 401 is connected to the upper template 301, and the lower punching die pad 408 is connected to the lower template 302. The upper punching die pad 401 and the lower punching die pad 408 are correspondingly arranged. The bottom end of the upper punching die pad 401 is connected to the upper punching die fixing plate 402, and the top end of the lower punching die pad 408 is connected to the lower punching die fixing plate 409. The top end of the lower punching die fixing plate 409 is connected to the lower punching die unloading plate 411. A partition hole punch 403 is provided on the upper punching die fixing plate 402, and a partition combination die 412 is provided on the lower punching die fixing plate 409. The partition hole punch 403 and the partition combination die 412 are adapted to each other. The die fixing plate 402 is also provided with an overlap hole punch 404 and a positioning hole punch 405. The punching lower die fixing plate 409 is provided with an overlap combination die 410, which is adapted to the overlap hole punch 404 and the positioning hole punch 405 respectively. The bottom end of the punching upper die fixing plate 402 is provided with a guide pin 406. The punching lower die fixing plate 402 and the punching lower die stripper plate 411 are respectively provided with guide holes adapted to the guide pin 406. The punching upper die fixing plate 402 is provided with a safety guide pin 407. The punching lower die fixing plate 409 and the punching lower die stripper plate 411 are respectively provided with safety holes adapted to the safety guide pin 407.

[0085] Specifically, the upper punching die fixing plate 402 is used to position and fix small parts such as the partition hole punch 403, the overlapping hole punch 404, the positioning hole punch 405, the guide pin 406, and the safety guide pin 407. The upper punching die pad 401 is the end face support for these small parts and has high wear resistance. The partition hole punch 403, the overlapping hole punch 404, and the positioning hole punch 405 are punches for punching functional holes. The guide pin 406 is a part that positions the material strip H inside the die. The safety guide pin 407 detects whether the positioning hole has been delivered to the accurate position, thereby determining whether the material strip H is correctly positioned, and transmits relevant signals to notify the equipment to stop or continue operation. It is one of the parts that ensure the safe operation of the die and equipment.

[0086] The punching process performed by punching assembly B involves punching positioning holes, overlap holes, and partition holes into strip H. The positioning holes are used for positioning strip H in subsequent processes. Guide pins (406) guide the positioning holes to position strip H, and the system works in conjunction with the feeding system to continuously correct accumulated errors, ensuring that each step of strip H is conveyed according to design requirements. The finished product is connected to strip H via a strip formed by two overlap holes; this is the overlap. Partition holes are formed at the ends of the overlap, partially separating it from strip H. During workpiece forming, the overlap is pulled towards the center of the workpiece, causing the partition holes to open and preventing the overlap from breaking. Punching is the fundamental process for forming the workpiece on strip H.

[0087] After the positioning hole punching, guide pins and safety guide pins are set. The guide pins are used for guiding and positioning the strip after it is fed in. If it cannot be correctly guided and positioned, the safety guide pin will trigger the detection sensor, thereby giving a stop signal due to the strip not being in place. This is a safety guarantee for continuous production of the mold. The punching uses the lower mold to fix the strip plate for unloading. During the process of the upper mold rising, the punching punch and guide pins are unloaded at the same time.

[0088] Specifically, such as Figure 5 As shown, the bubble-forming and trimming assembly C includes a first concave mold core 501, a first lower mold 502, a first convex mold core 503, a second concave mold core 504, a second convex mold core 505, a third concave mold core 506, a third convex mold core 507, a trimming upper mold pressing block 508, a countersunk rib upper mold core 509, a countersunk rib lower mold core 510, a trimming convex mold 511, and a trimming concave mold 512;

[0089] The bottom end of the upper mold plate 301 is provided with a first die core 501, a second die core 504, a third die core 506, and a trimming die 512 in sequence. The top end of the lower mold plate 302 is provided with a first punch core 503, a second punch core 505, a third punch core 507, and a trimming punch 511 in sequence. The first punch core 503 is fitted into the lower mold 502, and the first die core 501 is adapted to the first punch core 503. The second-stage die core 504 is adapted to the second-stage punch core 505, the third-stage die core 506 is adapted to the third-stage punch core 507, the trimming die 512 has a trimming upper die pressing block 508 embedded inside, the trimming punch 511 has a countersunk rib lower die core 510 inside, the trimming upper die pressing block 508 has a countersunk rib upper die core 509 inside, and the countersunk rib upper die core 509 is adapted to the countersunk rib lower die core 510.

[0090] Specifically, the bubble-forming and edge-cutting component C is a collection of four processes, including the first bubble forming, the second bubble forming, the third bubble forming, and edge-cutting. The first bubble forming involves thinning the material in the forming area to form a spherical bubble and preparing the rivet material. The second bubble forming involves initially shaping the spherical bubble into a rivet bubble. The third bubble forming involves shaping the material to the set rivet size and shape. Edge-cutting involves cutting the material intended for forming the cover off the material strip H, leaving four overlaps to connect with the material strip H, thereby reducing the impact of subsequent forming processes on the material strip H.

[0091] After punching, the material undergoes three bubbling processes to form the rivet used for riveting pull rings. The first dies (502) are designed for pressing and shaping, preventing severe wrinkling and deformation. The second and third bubbling processes refine the material pulled up initially, shaping it into the rivet's shape and size. Material outside the initial bubbling area is largely unaffected by the forming process and does not require pressing; it is directly formed using the punch and die.

[0092] The trimming process cuts off all material except for the four overlapping edges, preparing for ring insertion forming. Trimming forming is a small composite mold, with the punch in the lower mold and the die in the upper mold, achieving upward punching. The upper mold core 509 is set with a countersunk rib at the center of the upper mold, and the lower mold core 510 is set with a countersunk rib at the center of the lower mold. Together with the trimming punch 511, the countersunk rib is pre-formed for ring insertion, reducing the amount of material pulled during ring insertion forming and preventing the countersunk rib from becoming too thin or even breaking.

[0093] Specifically, such as Figure 6 As shown, the ring-embedded scribing assembly D includes a ring-embedded forming pressure plate 601, a ring-embedded forming upper mold core 602, a ring-embedded forming lower mold core 603, a ring-embedded forming lower mold 604, a scribing lower mold core 605, and a scribing cutter mold core 606.

[0094] The bottom end of the upper template 301 is provided with an insert ring forming upper mold core 602 and a scribing cutter mold core 606 in sequence. The top end of the lower template 302 is provided with an insert ring forming lower mold 604 and a scribing lower mold core 605 in sequence. The insert ring forming pressure plate 601 is provided outside the insert ring forming upper mold core 602. The insert ring forming lower mold core 603 is fitted inside the insert ring forming lower mold core 604. The insert ring forming upper mold core 602 and the insert ring forming lower mold core 603 are adapted to each other. The scribing cutter mold core 606 is adapted to the scribing lower mold core 605.

[0095] Specifically, the ring-embedded assembly D includes two processes: ring-embedded forming and scribe-line forming. Ring-embedded forming is the deep drawing process to form the recessed platform and its reinforcing rib structure for riveting the ring, while scribe-line forming is the process of forming the scribe-line structure for opening.

[0096] Ring-embedded molding involves forming a recessed platform in the middle of the lid, with the pull ring riveted onto the plane of this platform. After ring-embedded molding, engraving is performed. The engraving is a narrow groove with a certain depth punched along a set trajectory. The shape and size of the engraving determine the shape and size of the easy-open lid opening.

[0097] Specifically, such as Figure 7 As shown, the riveting and shaping assembly F includes a lower die for the ring feeding channel 701, an upper plate for the ring feeding channel 702, a riveting head 703, a lower die for riveting and shaping 704, an upper die core for riveting 705, an upper die for riveting 706, a lower die for shaping 707, a lower die core for shaping 708, an upper die for shaping 709, and a pressure ring for the upper die for shaping 710.

[0098] The bottom end of the upper template 301 is provided with a riveting upper mold 706 and a shaping upper mold 709 in sequence. The top end of the lower template 302 is provided with a riveting shaping lower mold 704 and a shaping lower mold 707 in sequence. The riveting upper mold 706 is fitted with a riveting upper mold core 705. The riveting shaping lower mold 704 is fitted with a rivet head 703. The riveting upper mold core 705 is adapted to the rivet head 703. The shaping upper mold 709 is provided with a shaping upper mold pressure ring 710 on the outside. The shaping lower mold 707 is fitted with a shaping lower mold core 708. The shaping upper mold 709 is adapted to the shaping lower mold 707. The ring feeding channel lower mold 701 is provided at the top end of the lower template 302. The ring feeding channel lower mold 701 is located to the left of the riveting upper mold 706. The top end of the ring feeding channel lower mold 701 is provided with a ring feeding channel upper plate 702 adapted to it.

[0099] Specifically, the lower mold 701 of the ring channel and the upper plate 702 of the ring delivery channel constitute the ring delivery channel E.

[0100] Specifically, the riveting and shaping component F includes two processes: riveting and shaping, plus the ring feeding channel E that spans the riveting area, to realize the riveting and shaping of the pull ring and the cover.

[0101] Riveting and shaping involves riveting the pull ring used to pry open the engraved lines onto the insert ring surface as required, and riveting it together with the bubble-forming process from the previous step. Because the pull ring is cut directly from the pull ring material strip and riveted, the cut edge of the pull ring needs to be trimmed. Shaping is the trimming of the cut edge of the pull ring and the removal of burrs.

[0102] Specifically, such as Figure 8 As shown, the blanking forming assembly G includes a punch and die pressure ring 801, a punch and die 802, a forming pressure column 803, a lower die core 804, a lower forming die 805, a lower forming die ejector ring 806, a waste cutting upper die fixing plate 807, a waste cutting small cutter 808, a waste cutting cutter 809, and a waste cutting lower die 810;

[0103] At the bottom of the upper template 301, a punch and die 802 and a scrap cutting upper die fixing plate 807 are arranged in sequence. A punch and die pressure ring 801 is arranged on the outside of the punch and die 802. A forming pressure column 803 is embedded inside the punch and die 802. A scrap small cutter 808 is embedded inside the scrap cutting upper die fixing plate 807. At the bottom of the lower template 302, a forming lower die 805 and a scrap cutting lower die 810 are arranged in sequence. A lower die core 804 is embedded inside the forming lower die 805. A forming lower die top ring 806 is arranged between the forming lower die 805 and the lower die core 804. The forming pressure column 803 is adapted to the lower die core 804. A scrap cutting cutter 809 is arranged on the outside of the scrap cutting upper die fixing plate 807. The scrap cutting cutter 809 is located to the right of the scrap small cutter 808.

[0104] Specifically, the blanking forming component G includes two processes: deep drawing and waste cutting. Deep drawing is the process of cutting the cover body from the material strip H and drawing it into a finished cover. The waste cutting process is the process of cutting off the excess material in the material strip H for easy collection.

[0105] Blanking is the final forming of the workpiece. The material to be formed is completely cut off, then drawn into a complete product structure, and the formed easy-open lid is sent out of the mold through the lid ejection device. Waste cutting is to cut the remaining material H strip after the lid has been formed into sheets for recycling.

[0106] Specifically, punching assembly B, bubble trimming assembly C, ring engraving assembly D, riveting and shaping assembly F, and blanking forming assembly G each include a top material structure;

[0107] like Figure 9 As shown, the top material structure includes an upper pad plate 901, an upper positioning plate 902, a pressure rod 903, a discharge plate 904, a guide plate 905, a top material column 906, a lower positioning plate 907, and a top column 908.

[0108] The bottom end of the upper pad 901 is connected to the upper positioning plate 902. Pressure rods 903 are respectively set on both sides of the upper positioning plate 902. The bottom end of the upper positioning plate 902 is correspondingly set to the lower positioning plate 907. The top two sides of the lower positioning plate 907 are respectively set to the guide plates 905. The top of the two guide plates 905 is respectively set to the unloading plate 904. The two sides of the interior of the lower positioning plate 907 are respectively set to the top pillars 908. The positions of the two top pillars 908 correspond to the two pressure rods 903. The interior of the guide plate 905 is set to the top pillar 906. The top pillar 906 is located between the pressure rod 903 and the top pillar 908. The unloading plate 904 has a through hole adapted to the pressure rod 903. The guide plate 905 has a groove adapted to the pressure rod 903.

[0109] The upper pad 901 and the upper positioning plate 902 are used to support and fix the pressure rod 903. The function of the pressure rod 903 is to control the up and down movement of the ejector column 906. In addition to forming the running channel of the material strip H and unloading, the unloading plate 904 has another key function: limiting the upward height of the ejector column 906. The ejector column 906 is limited by the time interval of the material strip H when the unloading plate 904 is stationary. The functions of the ejector column 906 are to lift the material strip H to the conveying height and to lower the material strip H so that the workpiece falls onto the forming surface of the mold. The guide plate 905 positions the ejector column 906 and the unloading plate 904. The lower positioning plate 907 is the bottom mounting plate and also the positioning guide plate for the ejector column 908. The ejector column 908 is the pushing part for the upward movement of the ejector column 906, and its power comes from the spring installed in the mold frame A.

[0110] See Figures 1-1 to 1-6 as well as Figures 2-1 to 2-2 As shown, this embodiment of the invention also provides a progressive molding process for easy-open beer bottle caps, which uses the aforementioned progressive molding mold for processing. The process includes, in sequence: punching, bubble formation one, bubble formation two, bubble formation three, edge trimming, ring embedding, engraving, riveting, shaping, blanking and deep drawing, and waste removal.

[0111] Specifically, this progressive forming process includes the following steps:

[0112] S1: Positioning, the prepared strip H is fed into the forming mold for initial positioning, waiting to be fed in;

[0113] S2: Punching, the material strip H is fed intermittently, and during the feeding stop time, positioning holes, overlap holes and partition holes are punched out in sequence on the material strip H;

[0114] S3: Bubbling, which includes the first bubble, the second bubble, and the third bubble in sequence; when the material strip H enters the bubble cutting component C, the first bubble is to thin the material in the forming area to form a spherical bubble, preparing the rivet material; the second bubble is to initially shape the spherical bubble into a rivet bubble; and the third bubble is to form it to the set rivet size and shape.

[0115] S4: Trim the edge, cut the material intended for molding the cover off the strip H, leaving four overlapping edges to connect with the strip H;

[0116] S5: Ring forming, the strip H is drawn into a recessed platform and its reinforcing rib structure for riveting rings;

[0117] S6: Scrubbing forming, punching a narrow groove of a certain depth into the strip H along the set trajectory;

[0118] S7: Riveting, riveting the pull ring used to pry open the engraved line to the insert ring surface as required, and riveting it together with the bubble from the previous process;

[0119] S8: Shaping, trimming the broken edge of the pull ring and removing burrs;

[0120] S9: Blanking and stretching: The material to be formed is completely cut off, then drawn into a complete product structure, and the formed easy-open lid is sent out of the mold;

[0121] S10: Cut waste material. Cut the remaining material H strip that has been formed into sheets for recycling.

[0122] In this molding process, a step-forming process is adopted, and all molding steps are carried out on the material strip H. The feeding step distance is precise, ensuring product quality. The rivets are formed entirely on the flat material strip H, resulting in higher molding quality and easier control. The material strip H is designed with positioning holes, and the workpiece in the subsequent process is designed with an overlap to connect to the material strip H. The workpiece is positioned with rivets and then formed. Since the material strip H can be deformed and corrected by external forces, the probability of damage is lower than that of mechanical hard positioning. Moreover, since the basic cover and molding can be completed in the same mold step by step, coupled with the multi-channel design, the molding equipment and space resources of the basic cover process can be saved, effectively reducing production costs.

[0123] The operating principle of the mold of this invention is as follows: After the strip material is initially positioned, under the action of the power source, the upper template 301 of the mold frame A drives the forming mold parts fixed on it to move downward, punching and forming the strip material H and the workpiece on it. After the mold completes one forming, under the action of the power source, the upper template 301 drives all process upper molds and other auxiliary parts to move upward. The ejector pin 906 follows and lifts the strip material H. When the top of the ejector pin 906 contacts the left and right strip ejector plates, the ejector pin 906 stops moving upward. When the feeding sequence is reached, the feeding structure starts to feed the strip material H and stops when it reaches a step distance. At this time, the upper mold moves downward. When the guide pin 406 initially enters the positioning hole... The feeding mechanism releases the material belt H, which is correctly positioned under the action of the guide pin 406 and the station guide positioning parts. The positioning process is accompanied by the downward movement of the ejector pin 906. Each workpiece falls onto the lower mold of the forming mold of the next station. As the upper mold continues to move downward, the upper and lower molds of each station work together to complete the forming of the workpiece until the mold moves upward again. The workpiece is then carried by the material belt H to the next station for forming. This process is continuous. Each workpiece is connected to the material belt and is intermittently fed and formed along with the material belt. It goes through punching, three-stage bubbling, edge trimming, ring insertion, engraving, riveting, shaping, blanking and deep drawing in sequence. The finished product is sent out of the mold through the channel.

[0124] In summary, this invention achieves a series of step-by-step forming processes for the cover body using a progressive mold with continuous forming. The entire process is completed on the material strip, and the corresponding forming processes are completed by components at different stations on the mold. This effectively reduces quality problems caused during positioning and conveying, achieves a high-efficiency and high-quality forming process, and improves product quality and production efficiency.

[0125] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A progressive molding die for easy-open beer bottles, characterized in that, include: The mold frame serves as the carrier for the entire mold. The strip is the material of the workpiece and also the carrier for workpiece forming and conveying; The mold frame is sequentially equipped with a punching assembly, a bubble trimming assembly, an insert ring engraving assembly, a riveting and shaping assembly, and a blanking and forming assembly. The punching assembly is used to punch positioning holes, overlap holes, and partition holes on the strip. The foaming and trimming assembly is used to perform three foaming and trimming processes on the strip. The ring-insertion and scribing assembly is used to perform ring-insertion forming and scribing forming on the strip. The riveting and shaping assembly is used to rivet and shape the pull ring and the cover on the strip; The blanking and forming assembly is used to perform deep drawing and waste cutting on the strip; The mold frame includes an upper mold plate, a lower mold plate, a guide sleeve, a guide pillar, a lower limit block, an upper limit block, an upper mold spring sleeve, a rectangular compression spring, a spring pad, a large cylinder liner, a large piston, a small cylinder liner, and a small piston; The upper template is the mounting base plate of the upper mold of the whole mold, and the lower template is the mounting base plate of the lower mold of the whole mold. The upper template and the lower template are correspondingly set. The upper template is connected to the guide post, and the lower template is connected to the guide sleeve. The upper template and the lower template are slidably connected through the guide post and the guide sleeve. The lower end of the lower limit block is connected to the lower template, and the upper end of the upper limit block is connected to the upper template. The lower limit block and the upper limit block are correspondingly set. The upper mold spring sleeve is set on one side of the bottom end of the upper template. The rectangular compression spring is set inside the upper mold spring sleeve. The lower end of the rectangular compression spring is connected to a spring pad. The top end of the lower template is set with a small cylinder sleeve. The small cylinder sleeve is set with a small piston inside. The bottom end of the upper template is set with a large cylinder sleeve. The large cylinder sleeve is set with a large piston inside. The bubble-forming and trimming assembly includes a first concave mold core, a first lower mold core, a first convex mold core, a second concave mold core, a second convex mold core, a third concave mold core, a third convex mold core, a trimming upper mold pressing block, a countersunk rib upper mold core, a countersunk rib lower mold core, a trimming convex mold, and a trimming concave mold; the bottom end of the upper mold plate is sequentially provided with the first concave mold core, the second concave mold core, the third concave mold core, and the trimming concave mold, and the top end of the lower mold plate is sequentially provided with the first convex mold core, the second convex mold core, the third convex mold core, and the trimming convex mold, and the first convex mold core is fitted into... Within the first lower die, the first concave die core is adapted to the first convex die core, the second concave die core is adapted to the second convex die core, and the third concave die core is adapted to the third convex die core. The trimming die has the trimming upper die pressing block embedded inside. The trimming convex die has the countersunk rib lower die core inside. The trimming upper die pressing block has the countersunk rib upper die core inside. The countersunk rib upper die core is adapted to the countersunk rib lower die core. The trimming convex die is adapted to the trimming die. The punching assembly, the bubble trimming assembly, the ring engraving assembly, the riveting and shaping assembly, and the blanking forming assembly each further include a top material structure; The top material structure includes an upper pad plate, an upper positioning plate, a pressure rod, a discharge plate, a guide plate, a top material column, a lower positioning plate, and a top column; The upper positioning plate is connected to the bottom end of the upper pad. The pressure rods are respectively arranged on both sides of the upper positioning plate. The lower positioning plate is correspondingly arranged at the bottom end of the upper positioning plate. The guide plates are respectively arranged on both sides of the top end of the lower positioning plate. The unloading plates are respectively arranged at the top end of the two guide plates. The top pillars are respectively arranged on both sides of the interior of the lower positioning plate. The positions of the two top pillars correspond to the two pressure rods. The top material column is arranged inside the guide plate. The top material column is located between the pressure rod and the top pillar. The unloading plate has a through hole adapted to the pressure rod. The guide plate has a groove adapted to the pressure rod.

2. The progressive molding die for an easy-open beer bottle cap according to claim 1, characterized in that, The punching assembly includes a punching upper die pad, a punching upper die fixing plate, a partition hole punch, an overlap hole punch, a positioning hole punch, a guide pin, a safety guide pin, a punching lower die pad, a punching lower die fixing plate, an overlap combined die, a punching lower die unloading plate, and a partition combined die. The upper punching die pad is connected to the upper template, and the lower punching die pad is connected to the lower template. The upper punching die pad and the lower punching die pad are correspondingly arranged. The bottom end of the upper punching die pad is connected to the upper punching die fixing plate, and the top end of the lower punching die pad is connected to the lower punching die fixing plate. The top end of the lower punching die fixing plate is connected to the lower punching die unloading plate. The upper punching die fixing plate is provided with the partition hole punch, and the lower punching die fixing plate is provided with the partition combination die. The partition hole punch and the partition combination die are compatible. The upper punching die fixing plate is also provided with the overlapping hole punch and the positioning hole punch. The lower punching die fixing plate is provided with the overlapping combination die. The overlapping combination die is adapted to the overlapping hole punch and the positioning hole punch respectively. The bottom end of the upper punching die fixing plate is provided with a guide pin. The lower punching die fixing plate and the lower punching die unloading plate are respectively provided with guide holes adapted to the guide pin. The upper punching die fixing plate is provided with a safety guide pin. The lower punching die fixing plate and the lower punching die unloading plate are respectively provided with safety holes adapted to the safety guide pin.

3. The progressive molding die for an easy-open beer bottle cap according to claim 1, characterized in that, The ring-embedded scribing assembly includes a ring-embedded forming pressure plate, a ring-embedded forming upper mold core, a ring-embedded forming lower mold core, a ring-embedded forming lower die, a scribing die core, and a scribing lower mold core; The bottom end of the upper template is provided with the upper ring forming mold core and the scribing die core in sequence, and the top end of the lower template is provided with the lower ring forming mold core and the scribing die core in sequence. The outer side of the upper ring forming mold core is provided with the ring forming pressure plate, and the lower ring forming mold core is fitted inside the lower ring forming mold core. The upper ring forming mold core and the lower ring forming mold core are adapted to each other, and the lower scribing die core is adapted to the scribing die core.

4. The progressive molding die for an easy-open beer bottle cap according to claim 1, characterized in that, The riveting and shaping assembly includes a lower plate of the ring feeding channel, an upper plate of the ring feeding channel, a riveting head, a lower riveting mold, a core of the upper riveting mold, an upper riveting mold, a lower shaping mold, a core of the lower shaping mold, an upper shaping mold, and a pressure ring for the upper shaping mold. The bottom end of the upper template is provided with the riveting upper mold and the shaping upper mold in sequence, and the top end of the lower template is provided with the riveting shaping lower mold and the shaping lower mold in sequence. The riveting upper mold core is embedded inside the riveting upper mold, and the riveting head is embedded inside the riveting shaping lower mold. The riveting upper mold core is adapted to the riveting head. The shaping upper mold pressure ring is provided outside the shaping upper mold, and the shaping lower mold core is embedded inside the shaping lower mold. The shaping upper mold is adapted to the shaping lower mold. The lower plate of the feeding ring channel is provided at the top end of the lower template, and the upper plate of the feeding ring channel is provided at the top end of the lower plate of the feeding ring channel. The riveting upper mold is matched with the feeding holes of the upper plate of the feeding ring channel and the lower plate of the feeding ring channel respectively.

5. The progressive molding die for an easy-open beer bottle cap according to claim 1, characterized in that, The blanking and forming assembly includes a punch and die pressure ring, a punch and die, a forming pressure column, a lower die core, a lower forming die, a lower forming die ejector ring, a waste cutting upper die fixing plate, a waste cutting small cutter, a waste cutting cutter and a waste cutting lower die; The bottom end of the upper template is provided with the punch and die and the upper die fixing plate for cutting waste material in sequence. The punch and die pressure ring is provided on the outside of the punch and die. The forming pressure column is embedded in the inside of the punch and die. The waste material small cutter is embedded in the inside of the upper die fixing plate for cutting waste material. The bottom end of the lower template is provided with the lower die for forming and the lower die for cutting waste material in sequence. The lower die core is embedded in the inside of the lower die for forming. The lower die top ring for forming is provided between the lower die for forming and the lower die core. The forming pressure column is adapted to the lower die core. The waste material cutter is provided on the outside of the upper die fixing plate for cutting waste material. The waste material cutter is located to the right of the waste material small cutter.

6. A progressive molding process for easy-open caps on beer bottles, characterized in that, Processing using the progressive forming mold of any one of claims 1-5 includes: punching, bubble forming one, bubble forming two, bubble forming three, edge trimming, ring insert forming, line forming, riveting, shaping, blanking and deep drawing, and waste cutting.

7. The progressive molding process for easy-open caps of beer bottles according to claim 6, characterized in that, The following steps are involved: S1: Positioning, the strip with the processed ends is fed into the forming mold for initial positioning, waiting to be fed in; S2: Punching, the material strip is fed intermittently, and during the feeding stop time, positioning holes, overlap holes and partition holes are punched out on the material strip in sequence; S3: Bubbling, which includes the first bubble, the second bubble, and the third bubble in sequence; when the material strip enters the bubble cutting assembly, the first bubble is to thin the material in the forming area to form a spherical bubble, preparing the rivet material; the second bubble is to initially shape the spherical bubble into a rivet bubble; and the third bubble is to form it to the set rivet size and shape. S4: Trimming, cutting the material intended for molding the cover off the strip, leaving four overlapping edges to connect with the strip; S5: Ring forming, which involves drawing the strip to form a recessed platform and reinforcing rib structure for riveting rings; S6: Scrubbing forming, punching out a narrow groove of a certain depth along the set trajectory of the material strip; S7: Riveting, riveting the pull ring used to pry open the engraved line to the insert ring surface as required, and riveting it together with the rivet from the previous process; S8: Shaping, trimming the broken edge of the pull ring and removing burrs; S9: Blanking and stretching: The material to be formed is completely cut off, then drawn into a complete product structure, and the formed easy-open lid is sent out of the mold; S10: Cut waste material, cut the remaining material strip after the cover body has been formed into sheets for recycling.

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