Multi-channel high-speed production line stamping device for easy-open lids

Abstract

The invention discloses a multi-channel high-speed production line stamping device for easy-to-pull lids, and relates to the technical field of easy-to-pull lid production equipment. The device comprises a punching machine, a feeding line body is arranged on the right side of the punching machine, a discharging line body is arranged on the left side of the punching machine, a driving punching block is arranged in the punching machine, multiple sets of punches are arranged at the top and the bottom of the driving punching block, and a lower die and an upper die are fixedly installed in the punching machine; the outer side of the lower die is sleeved with a lower feeding line body, the outer side of the upper die is sleeved with an upper feeding line body, the lower feeding line body and the upper feeding line body are each composed of a plurality of conveying belts, and a plurality of snap lid clamping holes are formed in the conveying belts. Driving force for driving the punching block to punch up and down is used for driving the pull ring punching assembly, the pull ring punching assembly can rapidly achieve punching and double-face edge folding of a pull ring in a guide surrounding mode, the structure is compact, and the production quality of double-face edge folding of the pull ring is high.

Description

Technical Field

[0001] The present invention relates to the technical field of easy-open lid production equipment, and in particular to a punching device for an easy-open lid multi-channel high-speed production line. Background Art

[0002] As a core component in the field of food and beverage packaging, the production efficiency and product quality of easy-open lids are directly related to the overall level and cost control of the packaging industry.

[0003] A Chinese patent (publication number: CN112139383A) discloses a punching device for a multi-channel high-speed production line for easy-open lids, comprising a sheave structure, a punching structure, and a feeding structure. The sheave structure is mounted on a platform and is driven to rotate by a rotating structure provided on the platform. The punching structure is connected to the sheave structure via a connector, and the rotation of the sheave structure drives the punching structure to reciprocate. Multiple punching structures are connected via a driven gear structure. A rack structure is provided within the feeding structure, which meshes with the sheave structure, and intermittent motion is achieved through the rotation of the sheave structure.

[0004] This patent and the prior art have the following technical problems in actual use: 1. Both the aforementioned application and the existing easy-open lid production line utilize a reciprocating stamping mechanism to perform high-speed stamping on the underlying die. This single-sided stamping process produces only one set of easy-open lids per press stroke. The only way to increase production capacity is to continuously increase the stamping frequency. Currently, mainstream equipment boasts speeds of 2,000-2,500 strokes per minute or even higher, approaching physical limits. This single-dimensional approach to increasing production capacity is no longer sustainable. Furthermore, with single-sided stamping, the massive downward impact force of the slider is directed through the machine body to the foundation, generating significant vibration and unbalanced torque, impacting stamping accuracy.

[0005] 2. In current high-speed production lines, the pull rings on easy-open lids are usually single-sided folded edges. The rivet points formed by the single-sided folding edges do not have sufficient metal structure wrapping and bite. At the same time, when consumers use improper force or non-ideal angles to open the lid, the pull ring is prone to twisting or even falling off, rather than being smoothly lifted in the designed direction, making it difficult to open. Summary of the Invention

[0006] The purpose of the present invention is to solve the above problems and provide a punching device for a multi-channel high-speed production line of an easy-open lid.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A punching device for a multi-channel high-speed production line for easy-open lids comprises a punching machine, a feeding line body is provided on the right side of the punching machine, a feeding line body is provided on the left side of the punching machine, a driving punch block is provided inside the punching machine, the driving punch block can move up and down at high speed, a plurality of punches are provided on the top and bottom of the driving punch block, a lower die and an upper die are fixedly installed inside the punching machine, the driving punch block is located between the lower die and the upper die, a lower feeding line body is sleeved on the outer side of the lower die, an upper feeding line body is sleeved on the outer side of the upper die, the lower feeding line body and the upper feeding line body are both composed of a plurality of conveyor belts, and a plurality of easy-open lid clamping holes are opened inside the conveyor belts; The front and back of the punching machine are both provided with pull ring punching assemblies, which use the driving punch block to move up and down to fold the pull ring on both sides. The material strips in the pull ring punching assemblies on both sides are crisscrossed with the lower feeding line and the upper feeding line respectively.

[0008] Furthermore, the inner diameter of the easy-open lid clamping hole in the lower feeding line is the same as the outer diameter of the easy-open lid, and the upper feeding line includes a tripod plate fixedly installed on the outside of the punching machine, and two sets of driving rollers are rotatably installed on both sides of the tripod plate, and the four sets of driving rollers are connected by multiple conveyor belts. Two sets of guide rollers are rotatably installed inside the tripod plate, and the conveyor belt passes through the lower surface of the guide roller. The easy-open lid clamping hole in the upper feeding line is composed of an easy-open lid mold hole and an elastic bottom supporting ring. The inner diameter of the easy-open lid mold hole is the same as the outer diameter of the easy-open lid, the inner diameter of the elastic bottom supporting ring is smaller than the outer diameter of the easy-open lid, and the thickness of the elastic bottom supporting ring is less than the thickness of the easy-open lid. Multiple sets of pushing cylinders are fixedly installed inside the tripod plate, and the pushing cylinders are correspondingly arranged to the conveyor belts. The pushing cylinders can pass through the easy-open lid mold hole. The pushing cylinders are located on the left side of the punching machine. The thickness of the conveyor belt in the upper feeding line is greater than the thickness of the easy-open lid, and the thickness of the conveyor belt in the lower feeding line is the same as the thickness of the easy-open lid.

[0009] Furthermore, an expansion opening is provided at the top of the easy-open lid die hole, and the maximum inner diameter of the expansion opening is greater than the outer diameter of the easy-open lid.

[0010] Furthermore, the feeding line includes a frame 1 fixedly installed on the right side of the punching machine, and the interior of the frame 1 is sequentially installed with multiple groups of feeding pipes, multiple groups of lifting magnetic conveying lines, multiple groups of feeding pipes 1 and multiple groups of feeding pipes 2 from right to left. The outlet of the feeding pipe 1 is perpendicular to the conveyor belt of the lower feeding line, and the outlet of the feeding pipe 2 is perpendicular to the vertical part of the conveyor belt of the upper feeding line. Buckets are provided at the inlet of the feeding pipe 1 and the inlet of the feeding pipe 2, and the buckets are arranged in a semicircular shape. Multiple groups of flexible flip rollers are rotatably installed between the buckets and the lifting magnetic conveying line. The number of flexible flip rollers is the same as that of the lifting magnetic conveying line. The outer surface of the flexible flip roller is arranged in a V shape. A pressing roller is rotatably installed on the right side of the tripod plate. The pressing roller is located below the outlet of the feeding pipe 2, and the pressing roller can press the easy-open cover into the easy-open cover mold hole.

[0011] Furthermore, the unloading line includes a frame 2 fixedly installed on the left side of the punching machine, and an ordinary conveying line, a magnetic conveying line 1 and a magnetic conveying line 2 are fixedly installed inside the frame 2. The ordinary conveying line and the magnetic conveying line 1 are both located on the right side of the magnetic conveying line 2. The ordinary conveying line is located above the magnetic conveying line 1, the magnetic conveying line 1 is located above the magnetic conveying line 2, the magnetic conveying line 1 is located directly above the lower feeding line, and the ordinary conveying line is located directly below the upper feeding line. A material guide hopper is provided obliquely downward at the outlet of the ordinary conveying line.

[0012] Furthermore, two groups of guide sliding holes are opened through the inner walls of the front and back of the punching machine, and two groups of sliding columns are set on the front and back of the driving punch block. The sliding columns pass through the guide sliding holes, and a driving plate is fixedly installed on the outer side of the front sliding column, and a transmission plate is fixedly installed on the outer side of the back sliding column. A driving motor is fixedly installed on the front of the punching machine, and a crank wheel is installed on the output end of the driving motor. A crank rod is hinged on the side of the crank wheel close to the punching machine, and the crank rod is hinged to the driving plate.

[0013] Furthermore, the pull ring stamping assembly includes a connecting frame fixedly mounted on the punching machine, a first die and a second die are fixedly mounted on a side of the connecting frame close to the driving punch block, the second die is located above the first die, a plurality of groups of upper folding die cavities are provided on the upper surface of the first die, a plurality of groups of blanking die cavities are provided on the upper surface of the second die, a plurality of groups of lower folding die cavities are provided on the lower surface of the second die, the number of upper folding die cavities, blanking die cavities and lower folding die cavities is the same as the number of conveyor belts, a pull ring material roller 2 is rotatably mounted on one end of the second die close to the punching machine, a pull ring material roller 1 is rotatably mounted between the first die and the second die, the pull ring material belt is closely attached to the upper surface of the second die, then changes direction through the pull ring material roller 2 to closely attach to the lower surface of the second die, and then changes direction through the pull ring material roller 1 to closely attach to the upper surface of the first die; It also includes a driven punching plate. The driven punching plate on the front pull ring punching assembly is fixedly mounted on the driving plate, and the driven punching plate on the back pull ring punching assembly is fixedly mounted on the transmission plate. An upper punching plate and a lower punching plate are provided on the side of the driven punching plate close to the connecting frame. The upper punching plate is located above the second die, and the lower punching plate is located between the first die and the second die.

[0014] Furthermore, two sets of partition guide plates are fixedly installed inside the punching machine, the lower partition guide plate is located between the lower feed line body and the driving punch block, and the upper partition guide plate is located between the upper feed line body and the driving punch block. Multiple sets of guide holes are opened through the interior of the partition guide plate, and the punch is inserted into the guide hole, and the punch will not fall out of the guide hole when punching up and down.

[0015] Furthermore, a visual inspection hole is provided inside the lower partition guide plate, the visual inspection hole is located on the left side of the punching machine, and a visual inspection component is provided on the top of the visual inspection hole.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention is composed of a plurality of conveyor belts on the lower feeding line and the upper feeding line, which can form double-sided multi-channels. In one stroke, both sides work simultaneously and produce two groups of covers. Under the condition that the stamping frequency remains unchanged, the production efficiency is effectively improved, and the dilemma of traditional single-sided stamping that relies on unlimited speed increase to increase production is eliminated. At the same time, the buffering force provided when stamping the upper and lower easy-open covers offsets most of the inertial forces generated inside the machine, and the machine body has high stability, which improves the stamping accuracy. The design of the easy-open cover clamping hole solves the problem of conflict between the easy-open cover hanging stamping and the punch, and enables the equipment to perform continuous stamping at high speed and stability with high production efficiency.

[0017] 2. The present invention utilizes the driving force of the driving punch block to provide drive for the pull ring stamping assembly, and the pull ring stamping assembly can quickly realize the punching and double-sided folding of the pull ring through a guided and surrounding manner. The structure is compact, and the production quality of the double-sided folding of the pull ring is high and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention Figure 2 ; Figure 3 This is a schematic diagram of the feeding line structure of the present invention; Figure 4 This is a schematic diagram of the blanking line structure of the present invention; Figure 5 This is a schematic diagram of the punching machine structure of the present invention Figure 1 ; Figure 6 This is a schematic diagram of the punching machine structure of the present invention Figure 2 ; Figure 7 This is a schematic diagram of the explosion structure of the punching machine of the present invention; Figure 8 This is a schematic diagram of the upper feeding line structure of the present invention; Figure 9 It is a schematic diagram of the cross-sectional structure of the conveyor belt in the upper feeding line of the present invention; Figure 10 It is a schematic structural diagram of the pull ring stamping assembly of the present invention.

[0019] Figure numerals: 1, punching machine; 2, feeding line; 21, frame 1; 22, feeding pipe; 23, lifting magnetic conveying line; 24, discharge pipe 1; 25, discharge pipe 2; 26, flexible flip roller; 27, bucket; 3, discharge line; 31, frame 2; 32, ordinary conveying line; 33, magnetic conveying line 1; 34, magnetic conveying line 2; 35, guide hopper; 4, driving punch; 41, slide column; 42, driving plate; 43, transmission plate; 44, driving motor; 45, crank wheel; 46, crank rod; 47, punch; 5, lower die; 6, Upper mold; 7. Lower feeding line; 8. Upper feeding line; 81. Tripod plate; 82. Driving roller; 83. Guide roller; 84. Conveyor belt; 841. Easy-open cover die hole; 842. Elastic bottom support ring; 843. Expansion mouth; 85. Pressing roller; 86. Pushing cylinder; 9. Partitioning guide plate; 91. Visual inspection component; 10. Pull ring stamping component; 101. Connecting frame; 102. First punching die; 103. Second punching die; 104. Pull ring material roller one; 105. Pull ring material roller two; 106. Driven punching plate; 107. Upper punching plate; 108. Lower punching plate. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Example 1, as Figures 1-10 As shown, a punching device for a multi-channel high-speed production line for easy-open lids includes a punching machine 1. A loading line 2 is provided on the right side of the punching machine 1, a unloading line 3 is provided on the left side of the punching machine 1, a driving punch block 4 is provided inside the punching machine 1, and the driving punch block 4 can move up and down at high speed. A plurality of punches 47 are provided on the top and bottom of the driving punch block 4. A lower mold 5 and an upper mold 6 are fixedly installed inside the punching machine 1. The driving punch block 4 is located between the lower mold 5 and the upper mold 6. A lower feeding line 7 is sleeved on the outer side of the lower mold 5, and an upper feeding line 8 is sleeved on the outer side of the upper mold 6. The lower feeding line 7 and the upper feeding line 8 are both composed of a plurality of conveyor belts 84, and a plurality of easy-open lid clamping holes are opened inside the conveyor belts 84. The front and back of the punching machine 1 are both provided with pull ring punching assemblies 10. The pull ring punching assemblies 10 use the driving punch block 4 to move up and down to perform double-sided folding on the pull ring. The material strips in the pull ring punching assemblies 10 on both sides are crisscrossed with the lower feed line 7 and the upper feed line 8 respectively.

[0022] The semi-finished easy-open lid enters the punching machine 1 through the feeding line 2, enters the mold cavity on the upper surface of the lower mold 5 through the lower feeding line 7, and enters the mold cavity on the lower surface of the upper mold 6 through the upper feeding line 8. The mold cavities of the lower mold 5 and the upper mold 6 are conventional easy-open lid stamping cavities. Through the transportation of the lower feeding line 7 and the upper feeding line 8, the semi-finished easy-open lid is sequentially subjected to rib forming, rivet forming, scoring and typing. In this process, the pull ring punching assembly 10 punches the pull ring from the material strip. It is in the shape of a pull ring, and then double-sided folding is performed, and the riveted joint is also connected to the material belt. The two groups of pull ring stamping assemblies 10 correspond to the upper mold 6 and the lower mold 5 respectively. The material belt and the lower feeding line 7 and the upper feeding line 8 are crisscrossed. The material belt drives the formed pull ring to move to the top of the riveted easy-open lid, and drives the punch 4 to rivet the pull ring and the easy-open lid together, and then conveys it to the lower feeding line 3 through the lower feeding line 7 and the upper feeding line 8. The lower feeding line 3 conveys the processed easy-open lid to the packaging station.

[0023] The lower feeding line 7 and the upper feeding line 8 are both composed of multiple conveyor belts 84, which can form double-sided multi-channels. In one stroke, both sides work simultaneously and produce two groups of covers. Under the condition that the stamping frequency remains unchanged, the production efficiency is directly increased by 100%, which gets rid of the dilemma of traditional single-sided stamping that relies on unlimited speed increase to increase production. At the same time, through the buffering force provided when stamping the upper and lower easy-open covers, most of the inertial forces generated are offset by each other inside the machine, the machine body has high stability, and the stamping accuracy is improved. The design of the easy-open cover clamping hole solves the problem of conflict between the easy-open cover hanging stamping and the punch 47, and can enable the equipment to perform continuous stamping at high speed and stability, with high production efficiency. The pull ring adopts double-sided folding, the riveting point is flatter, and the sealing reliability is higher. At the same time, the opening feel is smooth, the opening force is stable, and the user experience is improved.

[0024] Embodiment 2, on the basis of the above embodiment, further includes that the inner diameter of the easy-open lid clamping hole in the lower feeding line body 7 is the same as the outer diameter of the easy-open lid, the upper feeding line body 8 includes a tripod plate 81 fixedly mounted on the outside of the punching machine 1, two sets of drive rollers 82 are rotatably mounted on both sides of the tripod plate 81, and the four sets of drive rollers 82 are connected by multiple conveyor belts 84. Two sets of guide rollers 83 are rotatably mounted inside the tripod plate 81, and the conveyor belt 84 passes through the lower surface of the guide roller 83. The easy-open lid clamping hole in the upper feeding line body 8 is connected by the easy-open lid mold hole 841 and the elastic bottom support. The inner diameter of the easy-open lid die hole 841 is the same as the outer diameter of the easy-open lid, the inner diameter of the elastic bottom support ring 842 is smaller than the outer diameter of the easy-open lid, and the thickness of the elastic bottom support ring 842 is smaller than the thickness of the easy-open lid. Multiple groups of pushing cylinders 86 are fixedly installed inside the tripod plate 81. The pushing cylinders 86 are arranged corresponding to the conveyor belt 84. The pushing cylinders 86 can pass through the easy-open lid die hole 841. The pushing cylinders 86 are located on the left side of the punching machine 1. The thickness of the conveyor belt 84 in the upper feeding line 8 is greater than the thickness of the easy-open lid, and the thickness of the conveyor belt 84 in the lower feeding line 7 is the same as the thickness of the easy-open lid.

[0025] An expansion opening 843 is provided at the top of the easy-open lid die hole 841 . The maximum inner diameter of the expansion opening 843 is larger than the outer diameter of the easy-open lid. This arrangement facilitates the easy-open lid to enter the easy-open lid die hole 841 .

[0026] The present embodiment provides a double-sided feeding structure, the lower feeding line 7 only needs the easy-open cover to smoothly enter the easy-open cover clamping hole, and can stably feed the easy-open cover without affecting the stamping. The upper feeding line 8 is more troublesome and needs to be hoisted so as not to affect the stamping from bottom to top. Therefore, through the setting of the elastic bottom supporting ring 842, when feeding, the easy-open cover is pressed into the easy-open cover die hole 841, and the easy-open cover first squeezes the elastic bottom supporting ring 842 on the inner wall of the easy-open cover die hole 841. Since the thickness of the elastic bottom supporting ring 842 is less than the thickness of the easy-open cover, part of the easy-open cover exceeds the elastic bottom supporting ring 842, and the easy-open cover is stably clamped. When it moves to the stamping position, the punch 47 pushes the easy-open cover up from bottom to top, and the easy-open cover first separates from the elastic bottom supporting ring 842 , and then enters the die cavity, and the elastic bottom support ring 842 will be wrapped around the punch 47 under the action of elastic force. After the punching is completed, the punch 47 drops, and the elastic bottom support ring 842 is always wrapped around the punch 47. When the punch 47 breaks away from the elastic bottom support ring 842, the elastic bottom support ring 842 recovers under the action of elastic force, and brings the easy-open cover away from the punch 47, so that the easy-open cover remains in the easy-open cover die hole 841. Moreover, due to the large thickness of the upper conveyor belt 84, the punch 47 has enough space when stretching the elastic bottom support ring 842, ensuring that the elastic bottom support ring 842 will not be punched between the punch 47 and the easy-open cover, the stamping is stable, and the hanging conveying will not interfere with the stamping, and the easy-open cover can be stably conveyed to the specified position, and double-sided high-speed stamping can be stably completed.

[0027] After the final riveting is completed, the easy-open cover is transported to the bottom of the push cylinder 86, and the telescopic end of the push cylinder 86 extends to push the easy-open cover out of the easy-open cover die hole 841 to complete the unloading.

[0028] It should be noted that since the upper conveyor belt 84 is relatively thick, the upper material belt is located between the upper conveyor belt 84 and the upper mold 6, and the rivets of the upper easy-open lid protrude upward, that is, the upper and lower stamping directions are the same, and the raised surfaces are facing upward, ensuring that the material belt will not affect the upper stamping, and when unloading the material subsequently, the pull rings of the easy-open lid are all facing upward, which is convenient for subsequent packaging.

[0029] Embodiment 3, on the basis of the above embodiment, further includes, the feeding line body 2 includes a frame 21 fixedly installed on the right side of the punching machine 1, and the interior of the frame 21 is sequentially installed with multiple groups of feeding pipes 22, multiple groups of lifting magnetic conveying lines 23, multiple groups of feeding pipes 1 24 and multiple groups of feeding pipes 2 25 from right to left, the outlet of the feeding pipe 1 24 is perpendicular to the conveyor belt 84 of the lower feeding line body 7, the outlet of the feeding pipe 2 25 is perpendicular to the vertical part of the conveyor belt 84 of the upper feeding line body 8, and the feeding pipe 1 24 is perpendicular to the vertical part of the conveyor belt 84 of the upper feeding line body 8. Buckets 27 are provided at the mouth and the inlet of the discharge pipe 25. The bucket 27 is set in a semicircle. Multiple groups of flexible flip-cover rollers 26 are rotatably installed between the bucket 27 and the lifting magnetic conveying line 23. The number of flexible flip-cover rollers 26 is the same as that of the lifting magnetic conveying line 23. The outer surface of the flexible flip-cover roller 26 is set in a V shape. A pressing roller 85 is rotatably installed on the right side of the tripod plate 81. The pressing roller 85 is located below the outlet of the discharge pipe 25. The pressing roller 85 can press the easy-open cover into the easy-open cover mold hole 841.

[0030] The semi-finished easy-open lid is vertically conveyed to the position of the lifting magnetic conveying line 23 through the feeding tube 22, vertically attached to the lifting magnetic conveying line 23, and then the lifting magnetic conveying line 23 conveys the easy-open lid vertically upward, and finally conveys it to a horizontal state. Then, under the action of the conveying inertia force, the easy-open lid is inserted into the flexible flip-top roller 26, and the flexible flip-top roller 26 rotates to rotate the easy-open lid from horizontal to vertical again. After rotating to vertical, under the action of the bucket 27, the easy-open lid is arranged in a vertical state and enters the unloading tube 1 24 and the unloading tube 2 25. The unloading tube 1 24 directly guides the easy-open lid to the horizontal state, and introduces it into the easy-open lid clamping hole below from top to bottom. The unloading tube 25 guides the easy-open lid in a vertical state to the vertical surface of the upper conveyor belt 84, and is then conveyed by the upper conveyor belt 84 to the position of the pressing roller 85. The pressing roller 85 squeezes the easy-open lid into the easy-open lid mold hole 841, thereby completing the upper and lower stable loading.

[0031] Embodiment 4, on the basis of the above embodiment, further includes that the unloading line body 3 includes a frame 2 31 fixedly installed on the left side of the punching machine 1, and the interior of the frame 2 31 is fixedly installed with an ordinary conveying line body 32, a magnetic conveying line body 1 33 and a magnetic conveying line body 2 34, the ordinary conveying line body 32 and the magnetic conveying line body 1 33 are both located on the right side of the magnetic conveying line body 2 34, the ordinary conveying line body 32 is located above the magnetic conveying line body 1 33, the magnetic conveying line body 1 33 is located above the magnetic conveying line body 2 34, the magnetic conveying line body 1 33 is located directly above the lower feeding line body 7, the ordinary conveying line body 32 is located directly below the upper feeding line body 8, and a guide hopper 35 is provided obliquely downward at the outlet of the ordinary conveying line body 32.

[0032] The magnetic conveying line 1 33 uses magnetic force to attract the riveted easy-open lid on its bottom surface, and then transports it to the top of the magnetic conveying line 2 34. The magnetic force of the magnetic conveying line 2 34 is greater than that of the magnetic conveying line 1 33, and the easy-open lid is adsorbed on its upper surface; at the same time, the easy-open lid is pushed down from the top and falls on the ordinary conveying line 32, and then the easy-open lid is transported to the position of the guide hopper 35, and finally slides onto the magnetic conveying line 2 34, and the material discharge is stable.

[0033] Embodiment 5, on the basis of the above embodiment, further includes: two groups of guide slide holes are opened through the inner walls of the front and back of the punching machine 1, two groups of slide columns 41 are set on the front and back of the driving punch block 4, the slide columns 41 pass through the guide slide holes, a driving plate 42 is fixedly installed on the outer side of the front slide column 41, a transmission plate 43 is fixedly installed on the outer side of the back slide column 41, a driving motor 44 is fixedly installed on the front of the punching machine 1, a crank wheel 45 is installed on the output end of the driving motor 44, a crank rod 46 is hinged to the side of the crank wheel 45 close to the punching machine 1, and the crank rod 46 is hinged to the driving plate 42.

[0034] By controlling the power supply of the driving motor 44, the driving motor 44 drives the crank wheel 45 to rotate, and the crank wheel 45 drives the driving plate 42 to move up and down through the crank rod 46. The driving plate 42 drives the driving punch 4 to move up and down through the slide column 41. The servo motor control is used to achieve higher stamping accuracy.

[0035] Embodiment 6, on the basis of the above embodiment, further includes, the pull ring stamping assembly 10 includes a connecting frame 101 fixedly mounted on the stamping machine 1, the connecting frame 101 is fixedly mounted with a first die 102 and a second die 103 on one side close to the driving punch 4, the second die 103 is located above the first die 102, the upper surface of the first die 102 is provided with a plurality of upper folding die cavities, the upper surface of the second die 103 is provided with a plurality of blanking die cavities, the lower surface of the second die 103 is provided with a plurality of lower folding die cavities The number of the side die cavities, upper folding die cavities, blanking die cavities and lower folding die cavities is the same as the number of the conveyor belt 84. A second pull ring material roller 105 is rotatably installed at one end of the second die 103 close to the punching machine 1. A pull ring material roller 104 is rotatably installed between the first die 102 and the second die 103. The pull ring material belt is closely attached to the upper surface of the second die 103, then passes through the pull ring material roller 105 and changes direction to closely attach to the lower surface of the second die 103, and then passes through the pull ring material roller 104 and changes direction to closely attach to the upper surface of the first die 102; It also includes a driven punching plate 106. The driven punching plate 106 on the front pull ring punching assembly 10 is fixedly mounted on the driving plate 42, and the driven punching plate 106 on the back pull ring punching assembly 10 is fixedly mounted on the transmission plate 43. An upper punching plate 107 and a lower punching plate 108 are provided on the side of the driven punching plate 106 close to the connecting frame 101. The upper punching plate 107 is located above the second die 103, and the lower punching plate 108 is located between the first die 102 and the second die 103.

[0036] The material strip first passes through the upper surface of the second die 103, and the driving plate 42 drives the driven punching plate 106 to move up and down. The upper punch plate 107 cooperates with the upper surface of the second die 103 to punch out the shape of the pull ring, and then moves along the lower surface of the second die 103 under the guidance of the pull ring material roller 105. The lower punch plate 108 moves up and cooperates with the lower surface of the second die 103 to complete one side folding. Then, under the guidance of the pull ring material roller 104, it is close to the upper surface of the first die 102. The lower punch plate 108 moves up and cooperates with the upper surface of the first die 102 to complete the other side folding, and then the pull ring can be quickly formed in a very small space. Then, the pull ring is brought to the riveting position by the material strip, the pull ring is riveted on the rivet protrusion, and is punched out from the material strip, and the pull ring forming quality is high.

[0037] Embodiment 7, based on the above embodiment, further includes that two groups of partition guide plates 9 are fixedly installed inside the punching machine 1, the lower partition guide plate 9 is located between the lower feed line body 7 and the driving punch block 4, and the upper partition guide plate 9 is located between the upper feed line body 8 and the driving punch block 4, and multiple groups of guide holes are opened through the interior of the partition guide plate 9, and the punch 47 is inserted into the guide hole, and the punch 47 will not be separated from the guide hole when punching up and down.

[0038] The provision of the partition guide plate 9 can prevent the easy-open cover from being carried away from the conveyor belt 84 , and can always guide the punch 47 , making the punching more stable.

[0039] Embodiment 8, based on the above embodiment, further includes: a visual detection hole is opened inside the lower partition guide plate 9, the visual detection hole is located on the left side of the punching machine 1, and a visual detection component 91 is set on the top of the visual detection hole.

[0040] By setting up the visual inspection component 91, the riveted easy-open lid can be visually inspected to judge the punching yield rate, so as to facilitate timely adjustment of the punching machine 1.

[0041] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A punching device for a multi-channel high-speed production line of an easy-open lid, comprising a punching machine (1), characterized in that: The right side of the punching machine (1) is provided with a feeding line (2), the left side of the punching machine (1) is provided with a feeding line (3), the interior of the punching machine (1) is provided with a driving punch (4), the driving punch (4) can move up and down at high speed, the top and bottom of the driving punch (4) are provided with multiple sets of punches (47), the interior of the punching machine (1) is fixedly installed with a lower mold (5) and an upper mold (6), the driving punch (4) is located between the lower mold (5) and the upper mold (6), the outer side of the lower mold (5) is sleeved with a lower feeding line (7), the outer side of the upper mold (6) is sleeved with an upper feeding line (8), the lower feeding line (7) and the upper feeding line (8) are both composed of multiple conveyor belts (84), and the interior of the conveyor belt (84) is provided with a plurality of easy-open lid clamping holes; The front and back sides of the punching machine (1) are both provided with a pull ring punching assembly (10), and the pull ring punching assembly (10) utilizes a driving punch block (4) to move up and down to perform double-sided folding on the pull ring, and the material strips in the pull ring punching assemblies (10) on both sides are respectively crisscrossed with the lower feeding line (7) and the upper feeding line (8).

2. The punching device for a multi-channel high-speed production line of an easy-open lid according to claim 1, characterized in that: The inner diameter of the easy-open lid clamping hole in the lower feeding line (7) is the same as the outer diameter of the easy-open lid. The upper feeding line (8) includes a tripod plate (81) fixedly mounted on the outside of the punching machine (1). Two sets of driving rollers (82) are rotatably mounted on both sides of the tripod plate (81). The four sets of driving rollers (82) are connected by a plurality of conveyor belts (84). Two sets of guide rollers (83) are rotatably mounted inside the tripod plate (81). The conveyor belts (84) pass through the lower surface of the guide rollers (83). The easy-open lid clamping hole in the upper feeding line (8) is composed of an easy-open lid mold hole (841) and an elastic bottom support ring (842). The inner diameter of the pull-open lid die hole (841) is the same as the outer diameter of the easy-open lid, the inner diameter of the elastic bottom support ring (842) is smaller than the outer diameter of the easy-open lid, and the thickness of the elastic bottom support ring (842) is smaller than the thickness of the easy-open lid. A plurality of groups of push cylinders (86) are fixedly installed inside the tripod plate (81), and the push cylinders (86) and the conveyor belts (84) are arranged correspondingly. The push cylinders (86) can pass through the easy-open lid die hole (841). The push cylinders (86) are located on the left side of the punching machine (1). The thickness of the conveyor belt (84) in the upper feeding line (8) is greater than the thickness of the easy-open lid, and the thickness of the conveyor belt (84) in the lower feeding line (7) is the same as the thickness of the easy-open lid.

3. The punching device for a multi-channel high-speed production line of an easy-open lid according to claim 2, characterized in that: An expansion opening (843) is provided at the top of the easy-open lid die hole (841), and the maximum inner diameter of the expansion opening (843) is greater than the outer diameter of the easy-open lid.

4. The punching device for a multi-channel high-speed production line of an easy-open lid according to claim 2, characterized in that: The feeding line (2) includes a frame 1 (21) fixedly installed on the right side of the punching machine (1), and the interior of the frame 1 (21) is sequentially installed with multiple groups of feeding pipes (22), multiple groups of lifting magnetic conveying lines (23), multiple groups of unloading pipes 1 (24) and multiple groups of unloading pipes 2 (25) from right to left. The outlet of the unloading pipe 1 (24) is perpendicular to the conveyor belt (84) of the lower feeding line (7), and the outlet of the unloading pipe 2 (25) is perpendicular to the vertical part of the conveyor belt (84) of the upper feeding line (8). The inlet of the unloading pipe 1 (24) and the unloading pipe 2 ( 25) are provided with a bucket (27) at the inlet, and the bucket (27) is set in a semicircular shape. A plurality of sets of flexible flip-cover rollers (26) are rotatably installed between the bucket (27) and the lifting magnetic conveying line (23). The number of the flexible flip-cover rollers (26) is the same as that of the lifting magnetic conveying line (23). The outer surface of the flexible flip-cover roller (26) is set in a V shape. A pressing roller (85) is rotatably installed on the right side of the tripod plate (81). The pressing roller (85) is located below the outlet of the second feeding pipe (25). The pressing roller (85) can press the easy-open cover into the easy-open cover mold hole (841).

5. The punching device for a multi-channel high-speed production line of an easy-open lid according to claim 4, characterized in that: The unloading line (3) includes a frame 2 (31) fixedly installed on the left side of the punching machine (1), and a common conveying line (32), a magnetic conveying line 1 (33) and a magnetic conveying line 2 (34) are fixedly installed inside the frame 2 (31), and the common conveying line (32) and the magnetic conveying line 1 (33) are both located on the right side of the magnetic conveying line 2 (34), the common conveying line (32) is located above the magnetic conveying line 1 (33), the magnetic conveying line 1 (33) is located above the magnetic conveying line 2 (34), the magnetic conveying line 1 (33) is located directly above the lower feeding line (7), and the common conveying line (32) is located directly below the upper feeding line (8), and a guide hopper (35) is provided obliquely downward at the outlet of the common conveying line (32).

6. The punching device for a multi-channel high-speed production line of an easy-open lid according to claim 5, characterized in that: Two groups of guide sliding holes are provided through the inner walls of the front and back of the punching machine (1), and two groups of slide columns (41) are provided on the front and back of the driving punch block (4). The slide columns (41) pass through the guide sliding holes. A driving plate (42) is fixedly installed on the outer side of the front slide column (41), and a transmission plate (43) is fixedly installed on the outer side of the back slide column (41). A driving motor (44) is fixedly installed on the front of the punching machine (1), and a crank wheel (45) is installed at the output end of the driving motor (44). A crank rod (46) is hinged to the side of the crank wheel (45) close to the punching machine (1), and the crank rod (46) is hinged to the driving plate (42).

7. The punching device for a multi-channel high-speed production line of an easy-open lid according to claim 6, characterized in that: The pull ring punching assembly (10) includes a connecting frame (101) fixedly mounted on the punching machine (1), a first die (102) and a second die (103) fixedly mounted on one side of the connecting frame (101) close to the driving punch block (4), the second die (103) is located above the first die (102), the upper surface of the first die (102) is provided with a plurality of upper folding die cavities, the upper surface of the second die (103) is provided with a plurality of blanking die cavities, the lower surface of the second die (103) is provided with a plurality of lower folding die cavities, the upper folding die cavities , the number of the punching die cavities and the lower folding die cavities is the same as the number of the conveyor belt (84); the second die (103) is rotatably mounted with a pull ring material roller 2 (105) at one end close to the punching machine (1); a pull ring material roller 1 (104) is rotatably mounted between the first die (102) and the second die (103); the pull ring material belt is closely attached to the upper surface of the second die (103), then passes through the pull ring material roller 2 (105) and changes direction to closely attach to the lower surface of the second die (103), and then passes through the pull ring material roller 1 (104) and changes direction to closely attach to the upper surface of the first die (102); It also includes a driven punching plate (106), the driven punching plate (106) on the front pull ring punching assembly (10) is fixedly mounted on the driving plate (42), and the driven punching plate (106) on the back pull ring punching assembly (10) is fixedly mounted on the transmission plate (43), and an upper punching plate (107) and a lower punching plate (108) are provided on the side of the driven punching plate (106) close to the connecting frame (101), the upper punching plate (107) is located above the second punching die (103), and the lower punching plate (108) is located between the first punching die (102) and the second punching die (103).

8. The punching device for a multi-channel high-speed production line of an easy-open lid according to claim 7, characterized in that: Two sets of partition guide plates (9) are fixedly installed inside the punching machine (1), the lower partition guide plate (9) is located between the lower feed line body (7) and the driving punch block (4), and the upper partition guide plate (9) is located between the upper feed line body (8) and the driving punch block (4). The interior of the partition guide plate (9) is provided with a plurality of guide holes, the punch (47) is inserted into the guide holes, and the punch (47) will not be separated from the guide holes when punching up and down.

9. The punching device for a multi-channel high-speed production line of an easy-open lid according to claim 8, characterized in that: A visual inspection hole is provided inside the lower partition guide plate (9), the visual inspection hole is located on the left side of the punching machine (1), and a visual inspection component (91) is provided on the top of the visual inspection hole.

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