Full-automatic bottom-closing and wire-winding machine for tinplate cans

Abstract

The present invention discloses a fully automatic bottom buckling and wire winding machine for tinplate cans, which includes upper and lower die core fixing plates slidably connected to four columns. The upper die fixing plate is fixedly connected to a guide rod on the upper surface and the upper die on the lower surface. The upper surface of the lower die core fixing plate is fixedly connected with a die core and a lower die outer die cylinder. The guide rod of the lower die outer die cylinder is fixedly connected with the lower die outer die. The lower die outer die is composed of two half-frame types, and its opening faces the lower die core. The lower surface of the lower die core fixing plate is fixedly connected with the guide rod of the lower die core fixing plate lifting cylinder, and the lower die core fixing plate lifting cylinder is fixedly connected with the lower surface of the frame. The lower die core fixing plate support cylinders are fixedly connected to the front and rear side legs. The guide rod of the lower die core fixing plate support cylinder is fixedly connected with the lower die core fixing plate support block. The lower end surface of the lower die core fixing plate support block is slidably connected to the column fixing plate, and the upper end surface of the lower die core fixing plate support block is fixedly connected to the lower die core fixing plate for support connection. It improves the bottom buckling and wire winding efficiency and quality of tinplate cans, and has a high finished product rate.

Description

Technical Field

[0001] The present invention relates to the field of tinplate can forming machines, and specifically to a fully automatic bottom-closing and wire-winding machine for tinplate cans. Background Art

[0002] Metal cans are widely used in our production and daily life. The advantages of metal cans are very obvious. Its airtightness is very good, and it can withstand a relatively high internal pressure, which can ensure that the products in the metal can are not easily expired. During the production and processing of tinplate cans, the two ends of the tinplate can need to be formed by bottom-closing and wire-winding. Since the wire-winding shapes at both ends are inconsistent during the bottom-closing and wire-winding of tinplate cans, different molds are used for flanging at both ends of the tinplate can. This results in the need to complete the bottom-closing and wire-winding operation in two processes, resulting in low production efficiency; during the pressing process of the existing tinplate can bottom-closing and wire-winding, since the tinplate is held manually, the tinplate often shifts, affecting the lid-making efficiency and quality of the tinplate, with a low yield rate, causing waste of the tinplate, and reducing economic benefits; after the tinplate can is pressed, the worker manually takes out the metal can again. The metal cans can only be produced and processed one by one, with low pressing efficiency. Moreover, since the worker needs to take out the pressed metal cans one by one, the worker is easily injured by the mold of the crank press during the process of taking out the cans, increasing the danger of the worker's production and processing. Summary of the Invention

[0003] The purpose of the present invention is to provide a fully automatic bottom-closing and wire-winding machine for tinplate cans in view of the above-mentioned deficiencies of the prior art.

[0004] The technical solution of the present invention is realized as follows:

[0005] Automatic bottom-closing and wire-winding machine for tinplate cans, comprising a frame, a stamping device, a bottom-closing and wire-winding device, a clamping and translation device, a can bottom feeding device, a can body feeding device, a lower die core expansion and contraction device and an automatic control device. The frame includes four legs fixed by an upper panel and a lower panel, four columns fixed by the upper panel and a column fixing plate, and a tinplate can supporting slide fixed on the left leg; the upper panel of the frame is fixed with the stamping device, and the bottom-closing and wire-winding device, the lower die core expansion and contraction device and the clamping and translation device are arranged in the middle of the frame. The stamping device provides stamping pressure for the bottom-closing and wire-winding device, and the bottom-closing and wire-winding device and the lower die core expansion and contraction device perform bottom-closing and wire-winding on both ends of the can body; the can body feeding device is arranged on the right side of the frame, and the can body feeding device feeds the can body to the clamping and translation device; the clamping and translation device clamps and moves the can body to the bottom-closing and wire-winding device and the lower die core expansion and contraction device, and clamps and moves the tinplate can above the tinplate can supporting slide; the can bottom feeding device is arranged at the rear of the frame, and the can bottom feeding device feeds the can bottom to the bottom-closing and wire-winding device; the automatic control device controls the bottom-closing and wire-winding machine to perform bottom-closing and wire-winding on both ends of the can body in one forming; the bottom-closing and wire-winding device includes an upper die fixing plate and a lower die core fixing plate slidably connected to four columns. The upper surface of the upper die fixing plate is fixed with an upper die fixing plate guide rod, and the lower surface is fixed with an upper die. A magnet and a lower wire-winding groove are arranged on the bottom surface of the upper die. The upper surface of the lower die core fixing plate is fixed with a die core and a lower die outer die cylinder. The guide rod of the lower die outer die cylinder is fixed with a lower die outer die. The lower die outer die is composed of two half-frame types, the opening faces the lower die core, and the internal shape of the half-frame type lower die outer die matches the external shape of the lower die core. An upper wire-winding groove is arranged on the lower die core fixing plate surrounding the lower die core. The lower surface of the lower die core fixing plate is fixed with the guide rod of a lower die core fixing plate lifting cylinder, and the lower die core fixing plate lifting cylinder is fixed with the lower surface of the frame. Lower die core fixing plate support cylinders are fixed on the front and rear legs, and the guide rods of the lower die core fixing plate support cylinders are fixed with lower die core fixing plate support blocks. The lower end surface of the lower die core fixing plate support block is slidably connected to the column fixing plate, and the upper end surface of the lower die core fixing plate support block is support-connected to the lower die core fixing plate; the stamping device includes a stamping frame fixed on the top of the frame. A stamping motor is fixed on the top of the stamping frame, a crankshaft is rotatably connected in the middle, one end of the crankshaft is fixed with a flywheel, the flywheel is belt-driven by the stamping motor pulley, a stamping clutch and a stamping cylinder are fixed on one side of the stamping frame, the guide rod of the stamping cylinder is connected to the stamping clutch, a connecting rod is rotatably connected to the crankshaft, and the connecting rod is hinged to the upper die fixing plate guide rod.

[0006] The present invention has the following advantages:

[0007] The bottom-closing and wire-winding device of the present invention adopts the structure that the lower die core fixing plate and the upper die fixing plate move up and down along four columns, which improves the position accuracy of the upper and lower dies in the bottom-closing and wire-winding process, reduces the offset of the tinplate, improves the bottom-closing and wire-winding efficiency and quality of the tinplate can, has a high yield rate, reduces the waste of the tinplate, and improves the economic benefits. Description of the Drawings

[0008] Appendix Figure 1 is a schematic structural diagram of a fully automatic bottom-closing and wire-winding machine for tinplate cans.

[0009] Appendix Figure 2 is Appendix Figure 1 's C-C sectional view.

[0010] Appendix Figure 3 is a schematic structural diagram of the lower part of a fully automatic bottom-closing and wire-winding machine for tinplate cans.

[0011] Appendix Figure 4 is a schematic structural diagram of the bottom feeding device of a fully automatic bottom-closing and wire-winding machine for tinplate cans.

[0012] Appendix Figure 5 is a schematic structural diagram of the clamping and translation device of a fully automatic bottom-closing and wire-winding machine for tinplate cans.

[0013] Appendix Figure 6 is a schematic structural diagram of the connection between the outer lower die and the outer lower die cylinder, and the support cylinder and the support block of the lower die core fixing plate of a fully automatic bottom-closing and wire-winding machine for tinplate cans.

[0014] Appendix Figure 7 is a schematic structural diagram of the expansion and contraction device of the lower die core of a fully automatic bottom-closing and wire-winding machine for tinplate cans.

[0015] Appendix Figure 8 is Appendix Figure 7 's bottom view.

[0016] Appendix Figure 9 is a schematic structural diagram of the upper and lower end faces of the lower die core of a fully automatic bottom-closing and wire-winding machine for tinplate cans in the mating state with the fixed expansion and contraction block and the movable expansion and contraction block.

[0017] Appendix Figure 10 is a schematic structural diagram of the upper and lower end faces of the lower die core of a fully automatic bottom-closing and wire-winding machine for tinplate cans.

[0018] Appendix Figure 11 is a schematic structural diagram of the fixed connection of the lower die core fixing plate to the lower die core of a fully automatic bottom-closing and wire-winding machine for tinplate cans.

[0019] In the figure: 1 - standing leg, 1.1 - upper panel, 1.2 - lower panel, 2 - lower die outer die cylinder, 3 - slideway for supporting tinplate cans, 4 - lower die outer die, 5 - clamping cylinder, 6 - translation cylinder, 7 - translation cylinder support, 8 - first clamping slideway, 9 - upper die, 10 - upper die fixing plate, 11 - guide rod of upper die fixing plate, 12 - connecting rod, 13 - crankshaft, 14 - stamping frame, 15 - stamping motor, 16 - stamping motor pulley, 17 - flywheel, 18 - stamping clutch, 19 - stamping cylinder, 20 - column, 21 - PLC control device, 23 - second clamping slideway, 24 - first clip, 25 - translation slideway, 26 - transmission belt, 27 - driving roller, 28 - conveying motor, 29 - conveying frame, 30 - can body laser sensor, 31 - can body limit block, 32 - second clip, 33 - driven roller, 34 - support cylinder for lower die core fixing plate, 35 - column fixing plate, 36 - support block for lower die core fixing plate, 37 - lifting cylinder for lower die core fixing plate, 38 - support plate for bottom of can lifting cylinder, 39 - bottom of can lifting cylinder, 40 - support rod for bottom of can lower suction cup, 41 - bottom of can lower suction cup, 42 - lifting cylinder for bottom of can lower suction cup, 43 - first bottom of can cage, 44 - bottom of can upper suction cup, 45 - horizontal cylinder for bottom of can upper suction cup, 46 - lifting cylinder for bottom of can upper suction cup, 47 - support for horizontal cylinder for bottom of can upper suction cup, 48 - horizontal cylinder for bottom of can lower suction cup, 49 - lower die core, 491 - lower die core block, 492 - positioning hole of lower die core, 493 - connecting tension spring for lower die core block, 50 - lower die core fixing plate, 51 - first slide rod, 52 - translation slide rail, 53 - second slide rod, 54 - clamping slideway boss, 55 - translation slideway groove, 56 - clamping slideway groove, 57 - translation slide rail boss, 58 - second positioning frame for bottom of can, 59 - first positioning frame for bottom of can, 60 - second bottom of can cage, 61 - bottom of can support plate, 62 - sliding cylinder for bottom of can cage, 63 - sliding slider for bottom of can cage, 64 - sliding rail for bottom of can cage, 65 - movable expansion block, 66 - expansion bolt, 67 - fixed expansion block, 68 - lever, 69 - rotating shaft, 70 - lifting lug, 71 - expansion cylinder for lower die core, 72 - expansion long hole. Detailed implementation mode

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] As Figures 1-11As shown in the figure, the full-automatic bottom-closing and wire-winding machine for tinplate cans includes a frame, a stamping device, a bottom-closing and wire-winding device, a clamping and translation device, a can bottom feeding device, a can body feeding device, a lower die core expansion and contraction device, and an automatic control device. The frame includes four legs 1 fixedly connected by an upper panel 1.1 and a lower panel 1.2, four columns 20 fixedly connected by the upper panel 1.1 and a column fixing plate 35, and a tinplate can supporting slideway 3 fixedly connected to the left leg; the upper panel 1.2 of the frame is fixedly connected with the stamping device, and the bottom-closing and wire-winding device, the lower die core expansion and contraction device, and the clamping and translation device are arranged in the middle of the frame. The stamping device provides stamping pressure for the bottom-closing and wire-winding device, and the bottom-closing and wire-winding device and the lower die core expansion and contraction device perform bottom-closing and wire-winding on both ends of the can body; the can body feeding device is arranged on the right side of the frame, and the can body feeding device feeds the can body to the clamping and translation device; the clamping and translation device clamps and moves the can body to the bottom-closing and wire-winding device and the lower die core expansion and contraction device, and clamps and moves the tinplate can above the tinplate can supporting slideway 3; the can bottom feeding device is arranged at the rear of the frame, and the can bottom feeding device feeds the can bottom to the bottom-closing and wire-winding device; the automatic control device controls the bottom-closing and wire-winding machine to perform one-time forming of bottom-closing and wire-winding on both ends of the can body.

[0022] The stamping device includes a stamping frame 14 fixedly connected to the top of the frame. A stamping motor 15 is fixedly connected to the top of the stamping frame 14, a crankshaft 13 is rotatably connected in the middle, one end of the crankshaft 13 is fixedly connected with a flywheel 17, the flywheel 17 is in transmission connection with a stamping motor belt pulley 16, a stamping clutch 18 and a stamping cylinder 19 are fixedly connected to one side of the stamping frame 14, a guide rod of the stamping cylinder 19 is connected with the stamping clutch 18, a connecting rod 12 is rotatably connected to the crankshaft 13, and the connecting rod 12 is hinged to a guide rod of an upper die fixing plate 11; the stamping device provides power for the bottom-closing and wire-winding device.

[0023] The bottom-clamping wire winding device includes an upper die fixing plate 10 and a lower die core fixing plate 50 which are slidably connected to four columns 20. The upper surface of the upper die fixing plate 10 is fixedly connected to a guide rod 11 of the upper die fixing plate, and the lower surface is fixedly connected to an upper die 9. A magnet and a lower port wire winding groove are provided on the bottom surface of the upper die 9. The upper surface of the lower die core fixing plate 50 is fixedly connected to a lower die core 49 and a lower die outer die cylinder 2. The guide rod of the lower die outer die cylinder 2 is fixedly connected to a lower die outer die 4. The lower die outer die 4 is composed of two half-frame types, and its opening faces the lower die core 49. The internal shape of the half-frame type lower die outer die 4 matches the external shape of the lower die core 49. An upper port wire winding groove is provided on the lower die core fixing plate 50 surrounding the fixedly connected lower die core 49. The lower surface of the lower die core fixing plate 50 is fixedly connected to the guide rod of a lower die core fixing plate lifting cylinder 37. The lower die core fixing plate lifting cylinder 37 is fixedly connected to the lower surface of the frame. A lower die core fixing plate support cylinder 34 is fixedly connected to the front and rear side legs 1. The guide rod of the lower die core fixing plate support cylinder 34 is fixedly connected to a lower die core fixing plate support block 36. The lower end surface of the lower die core fixing plate support block 36 is slidably connected to a column fixing plate 35, and the upper end surface of the lower die core fixing plate support block 36 is support-connected to the lower die core fixing plate 50. The bottom-clamping wire winding device adopts a structure in which the lower die core fixing plate and the upper die fixing plate move up and down along the four columns, improving the position accuracy of the upper and lower dies during the bottom-clamping wire winding process, reducing the offset of the tinplate, improving the efficiency and quality of the one-time forming of the bottom-clamping wire winding at both ends of the tank body, having a high yield rate, reducing the waste of tinplate, and improving the economic benefits.

[0024] The clamping and translation device includes a first clamping slideway 8 and a second clamping slideway 23 fixedly connected to four columns 20. Clamping slideway grooves 56 are provided on the first clamping slideway 8 and the second clamping slideway 23. A clamping slideway boss 54 matching the clamping slideway groove 56 is slidably connected in the clamping slideway groove 56. The clamping slideway boss 54 is fixedly connected to the translation slideway 25. Clamping cylinders 5 are fixedly connected to the outer sides of the first clamping slideway 8 and the second clamping slideway 23. The guide rods of the clamping cylinders 5 are fixedly connected to the translation slideway 25. A translation slideway groove 55 is provided on the translation slideway 25. A translation slide rail boss 57 matching the translation slideway groove 55 is slidably connected in the translation slideway groove 55. The translation slide rail boss 57 and the translation slide rail 52 are integrated. The two ends of the translation slide rail 52 are slidably connected to a first slide rod 51 and a second slide rod 53. The second slide rod 53 is hinged to the end of the guide rod of the translation cylinder 6. The translation cylinder 6 is fixedly connected to the translation cylinder bracket 7. The translation cylinder bracket 7 is fixedly connected to the frame. A second clip 32 and a first clip 24 are fixedly connected to the middle and the right end of the translation slide rail 52 at intervals. The first clip 24 and the second clip 32 are composed of two half-frame shapes with corresponding openings, and the internal shapes of the half-frame first clip 24 and the second clip 32 match the external shape of the tank body. The clamping and translation device adopts the sliding connection of the clamping slideway groove and the clamping slideway boss, and the sliding connection of the translation slideway and the translation slide rail, and uses four cylinders to control the translation slideway, improving the smoothness of the movement of the clamping slideway groove and the clamping slideway boss and the translation slideway and the translation slide rail, thereby improving the reliability of the overall machine performance.

[0025] The bottom feeding device of the can includes a bottom lifting cylinder support plate 38 fixedly connected to the rear side of the vertical leg, a bottom cage sliding rail 64, a bottom cage sliding cylinder 62, and a bottom upper sucker horizontal cylinder support bracket 47. A bottom upper sucker horizontal cylinder 45 is fixedly connected to the bottom upper sucker horizontal cylinder support bracket 47. A guide rod of the bottom upper sucker horizontal cylinder 45 is fixedly connected to a bottom upper sucker lifting cylinder 46. A guide rod of the bottom upper sucker lifting cylinder 46 is fixedly connected to a bottom upper sucker 44. Horizontally arranged first bottom positioning frames 59 and second positioning frames 58 are fixedly connected to the vertical leg below the bottom upper sucker 44. First bottom cages 43 and second bottom cages 60 arranged longitudinally are provided below the first bottom positioning frame 59. Bottom cage sliding sliders 63 are fixedly connected to the sides of the first bottom cages 43 and the second bottom cages 60. The bottom cage sliding sliders 63 are slidably connected to the bottom cage sliding rail 64. A bottom support plate 61 that can slide up and down is arranged in the first bottom cages 43 and the second bottom cages 60. A guide rod of the bottom cage sliding cylinder 62 is fixedly connected to the second bottom cage 60. A bottom lifting cylinder 39 is supported and connected to the bottom lifting cylinder support plate 38. A guide rod of the bottom lifting cylinder 39 extends into the first bottom cage 43 or the second bottom cage 60, and its end supports the bottom support plate 61. A bottom lower sucker horizontal cylinder 48 is fixedly connected to the inner side of the second clamping slideway 23. A guide rod of the bottom lower sucker horizontal cylinder 48 is fixedly connected to a bottom lower sucker lifting cylinder 42. A guide rod of the bottom lower sucker lifting cylinder 42 is fixedly connected to a bottom lower sucker support rod 40. A bottom lower sucker 41 is fixedly connected to the end of the bottom lower sucker support rod 40. The bottom lower sucker 41 is correspondingly located below the second bottom positioning frame 58. The bottom feeding device adopts a structure of a bottom upper sucker and a bottom lower sucker, and accurately feeds the bottom of the can into the upper die through accurate positioning and conversion of the first positioning frame and the second positioning frame, realizing automatic feeding of the bottom of the can. When seaming the bottom of the tinplate can, it is not necessary to contact the tinplate can and the seaming die for the bottom of the can, ensuring the personal safety of the operator. At the same time, a device that alternately uses the first bottom cage and the second bottom cage is adopted to realize uninterrupted operation of bottom feeding of the can, further improving the working efficiency.

[0026] The body feeding device includes a conveying frame 29 arranged on the right side of the frame. A conveying motor 28 is fixedly connected to the right end of the conveying frame 29. A driving roller 27 and a driven roller 33 are rotatably connected to the upper surface of the conveying frame 29. A transmission belt 26 is rollingly connected to the driving roller 27 and the driven roller 33. The conveying motor 28 is in transmission connection with the driving roller 27. A body limiting block 31 is arranged on the conveying frame corresponding to the first clip 24. A body laser sensor 30 is arranged on the body limiting block 31. The body feeding device feeds the body to the clamping and translation device.

[0027] The lower die core expansion and contraction device includes a lower die core 49. The lower die core 49 is a hollow rectangular parallelepiped surrounded by four lower die core blocks 491. Spring grooves are provided on the four peripheries of the upper and lower end faces of the lower die core 49. Lower die core block connecting springs 493 are arranged in the spring grooves, and the lower die core block connecting springs 493 elastically connect the four lower die core blocks 491 together. Expansion and contraction block grooves are provided at the centers of the upper and lower end faces of the lower die core 49. A fixed expansion and contraction block 67 and a movable expansion and contraction block 65 that match the expansion and contraction block grooves are slidably connected in the expansion and contraction block grooves. The fixed expansion and contraction block 67 is fixedly connected to the lower die core fixing plate 50. A contraction bolt 66 is fixedly connected to the movable expansion and contraction block 65. The expansion and contraction bolt 66 passes through the hollow of the lower die core 49, the fixed expansion and contraction block 67, and the lower die core fixing plate 50 and is hinged to a lever 68. A lower die core expansion and contraction cylinder 71 is fixedly connected to one side of the lower die core fixing plate 50. The guide rod of the lower die core expansion and contraction cylinder 71 is hinged to the other end of the lever 68. An ear 70 is fixedly connected to the lower surface of the lower die core fixing plate 50 at a position corresponding to the middle of the lever 68. A rotating shaft 69 is rotatably connected to the ear 70, and the rotating shaft 69 is rotatably connected to the lever 68. Lower die core positioning holes 492 are provided at the four corners of the lower die core 49. Expansion and contraction long holes 72 are provided on the lower die core fixing plate 50 corresponding to the lower die core positioning holes 492. Bolts pass through the lower die core positioning holes 492 and the expansion and contraction long holes 72 to make the lower end face of the lower die core 49 slidably connected to the upper surface of the lower die core fixing plate 50. The lower die core expansion and contraction cylinder of the lower die core expansion and contraction device drives the movable expansion and contraction block to move up and down through the lever and the expansion and contraction bolt. Under the action of the lower die core block connecting spring, the lower die core expands or contracts, realizing the automatic control of upper die clamping and demoulding, and having high working efficiency.

[0028] The automatic control device includes a PLC control device 21 and an air pump arranged on the frame, a punching cylinder 19, a lower die outer die cylinder 2, a lower die core fixing plate supporting cylinder 37, a translation cylinder 6, a clamping cylinder 5, a tank bottom lifting cylinder 39, a tank bottom upper suction cup transverse cylinder 45, a tank bottom upper suction cup lifting cylinder 46, a tank bottom lower suction cup transverse cylinder 48, a tank bottom lower suction cup lifting cylinder 42, and a lower die core expansion and contraction cylinder 71 are respectively connected to the air pump, and the punching cylinder 19, the lower die outer die cylinder 2, The controllers of the lower mold core fixing plate supporting cylinder 37, the translation cylinder 6, the clamping cylinder 5, the tank bottom lifting cylinder 39, the tank bottom upper suction cup transverse cylinder 45, the tank bottom upper suction cup lifting cylinder 46, the tank bottom lower suction cup transverse cylinder 48, the tank bottom lower suction cup lifting cylinder 42, the lower mold core expansion and contraction cylinder 71 and the tank body laser sensor 30 are electrically connected to the PLC control device 21 respectively, and the PLC control device 21, the stamping motor 15, the conveying motor 28, and the air pump are electrically connected to the power supply respectively. The automatic control device combines mechanical structure with pneumatic and electric automatic control technology to make the laser sensor, stamping motor, PLC control device, cylinder and electromagnetic controller cooperate with each other to complete the clamping and translation of the tank body, sucking the upper die into the bottom of the tank, the lower die holding the tank body tightly, the translation slide rail return, the lower die support, the lower die outer die clamping the tank body, the upper and lower mouth stamping winding, the upper die rising and returning, the lower die outer die detaching from the tank body and returning, clamping the tinplate can of the tank body, the lower die detaching from the support, the demoulding of the lower die core, and the translation. The bottom buckle and winding operation of the tinplate can at both ends of the can body realizes the full automation of the one-time forming of the bottom buckle and winding at both ends of the tinplate can production, which greatly reduces the labor intensity, improves the production efficiency, and enhances the automation level of the tinplate can bottom buckle winding machine. It has a reasonable structure and reliable performance; and the operator can automatically load and unload during the tinplate can forming process. When the tinplate can bottom buckle is wound, there is no need to touch the tinplate can and the bottom buckle winding mold, which ensures the personal safety of the operator.

[0029] The distance between the first clamp 24 and the second clamp 32 is equal to the distance between the tank body limiting block 31 and the lower mold core 49 .

[0030] The controllers of the stamping cylinder 19, the lower die outer die cylinder 2, the lower die core fixed plate support cylinder 37, the translation cylinder 6, the clamping cylinder 5, the tank bottom lifting cylinder 39, the tank bottom upper suction cup transverse cylinder 45, the tank bottom upper suction cup lifting cylinder 46, the tank bottom lower suction cup transverse cylinder 48, the tank bottom lower suction cup lifting cylinder 42, and the lower die core expansion and contraction cylinder 71 include an electromagnetic controller.

[0031] Working principle of the tinplate can automatic bottom winding machine:

[0032] 1. Pneumatic and electric starting: Turn on the power supply, and the PLC control device 21, the stamping motor 15, the conveying motor 28, and the air pump start working;

[0033] 2. Clamping and translating the tank body: The tank body feeding device conveys the tank body to the clamping and translating device. When the tank body reaches the tank body limit block 31, the tank body laser sensor 30 sends a signal to the PLC control device 21. The PLC control device extends the guide rod of the clamping cylinder 5 to make the first clamp 24 clamp the tank body. The guide rod of the translation cylinder 6 contracts to drive the translation slide rail 52 to translate leftward, so that the tank body is translated below the upper die 9;

[0034] 3. Suction the bottom of the tank into the upper die: At the same time, the guide rod of the bottom of the tank lifting cylinder 39 extends to send the bottom of the tank into the first positioning frame 59 of the bottom of the tank. The suction cup 44 on the upper surface of the bottom of the tank sucks the upper surface of the bottom of the tank. The guide rod of the lifting cylinder 46 of the suction cup on the upper surface of the bottom of the tank contracts, and the transverse cylinder 45 of the suction cup on the upper surface of the bottom of the tank extends to send the bottom of the tank into the second positioning frame 58 of the bottom of the tank. The guide rod of the transverse cylinder 48 of the suction cup on the lower surface of the bottom of the tank extends to drive the suction cup 41 on the lower surface of the bottom of the tank to the lower part of the second positioning frame 58 of the bottom of the tank. The guide rod of the lifting cylinder 42 of the suction cup on the lower surface of the bottom of the tank contracts, and the suction cup 41 on the lower surface of the bottom of the tank sucks the lower surface of the bottom of the tank. The suction cup 44 on the upper surface of the bottom of the tank disengages. The guide rod of the lifting cylinder 42 of the suction cup on the lower surface of the bottom of the tank extends, and the guide rod of the transverse cylinder 48 of the suction cup on the lower surface of the bottom of the tank contracts to drive the bottom of the tank below the upper die 9. The magnet in the upper die 9 sucks the bottom groove of the bottom of the tank upward to the working surface of the upper die 9;

[0035] 4. Tighten the tank body with the lower die: At the same time, the guide rod of the lifting cylinder 37 of the lower die core fixing plate extends to drive the lower die core fixing plate to move upward along the column 20, so that the lower die core 49 is inserted into the inner cavity of the tank body. The guide rod of the expansion and contraction cylinder 71 of the lower die core contracts, and through the lever 68 and the expansion and contraction bolt 66, it drives the moving expansion and contraction block 65 to move downward. Under the action of the moving expansion and contraction block 65 and the fixed expansion and contraction block 67, the lower die core block 491 expands outward in all directions, and the lower die core 49 tightens the inner cavity of the tank body. The guide rod of the clamping cylinder 5 contracts, and the first clamp 24 disengages from the tank body;

[0036] 5. Return the translation slide rail: At the same time, the guide rod of the translation cylinder 6 extends to drive the translation slide rail 52 to translate leftward and return to its position;

[0037] 6. Support the lower die: At the same time, the guide rod of the support cylinder 34 of the lower die core fixing plate extends to make the upper end surface of the support block 36 of the lower die core fixing plate support the lower die core fixing plate 50;

[0038] 7. Clamp the tank body with the outer die of the lower die: Subsequently, the guide rod of the outer die cylinder 2 of the lower die extends to clamp the outer die 4 of the lower die to the tank body;

[0039] 8. Punch and wind the upper and lower openings: Subsequently, the guide rod of the punching cylinder 19 extends, the punching clutch 18 engages to make the flywheel 17 rotate, and the connecting rod 12 drives the guide rod 11 of the upper die fixing plate to move downward. The guide rod 11 of the upper die fixing plate drives the upper die fixing plate 10 to move downward along the column 20. The impact force makes the bottom of the tank in the upper die 9 snap into the lower opening of the tank body, and at the same time, the operations of winding the lower opening and winding the upper opening are completed;

[0040] 9. The upper die rises and returns to its original position: Subsequently, the upper die fixing plate guide rod 11 drives the upper die fixing plate 10 to move upward along the column 20, so that the upper die 9 rises and returns to its original position;

[0041] 10. The lower mold outer mold is separated from the tank body and returned to its original position: At the same time, the guide rod of the lower mold outer mold cylinder 2 is contracted, so that the lower mold outer mold 4 is separated from the tank body and returned to its original position;

[0042] 11. Clamping the can body and the tinplate can: At the same time, the guide rod of the clamping cylinder 5 is extended, so that the first clamp 24 clamps the next can body, and the second clamp 32 clamps the finished tinplate can;

[0043] 12. Lower mold is separated from support: Subsequently, the guide rod of the lower mold core fixing plate support cylinder 34 is contracted, so that the upper end surface of the lower mold core fixing plate support block 36 is separated from the lower mold core fixing plate 50;

[0044] 13. Demolding of the lower mold core: Subsequently, the guide rod of the lower mold core expansion and contraction cylinder 71 is extended, and the movable expansion and contraction block 65 is driven to move upward through the lever 68 and the expansion and contraction bolt 66. Under the action of the tension spring 493 connecting the lower mold core block, the lower mold core block 491 is contracted toward the center, and the lower mold core 49 is contracted to separate the lower mold core 49 from the inner cavity of the tank body. The guide rod of the lower mold core fixing plate lifting cylinder 37 is contracted, so that the lower mold core fixing plate moves downward along the column 20 and returns to its original position, completing the demolding operation of the lower mold core.

[0045] 14. Translation of can bodies and tinplate cans: Subsequently, the guide rod of the translation cylinder 6 contracts to drive the translation slide rail 52 to translate to the left, so that the next can body is translated to the bottom of the upper mold 9, and the finished tinplate can is translated to the top of the tinplate can receiving slide 3;

[0046] 15. Proceed to the next round of homework.

[0047] The present invention has been described in detail above through specific implementation methods in the form of embodiments, but this should not be understood as the above subject matter scope of the present invention being limited to the above specific implementation methods. All technologies implemented based on the above contents of the present invention belong to the scope of the present invention.

Claims

1. The full-automatic bottom-closing and wire-winding machine for tinplate cans is characterized in that: It includes a frame, a stamping device, a bottom-closing wire-winding device, a clamping and translating device, a can bottom feeding device, a can body feeding device, a lower die core expansion and contraction device and an automatic control device. The frame includes four vertical legs fixed by an upper panel and a lower panel, four columns fixed by the upper panel and a column fixing plate, and a tinplate can supporting slideway fixed on the left vertical leg; the upper panel of the frame is fixed with the stamping device, and the bottom-closing wire-winding device, the lower die core expansion and contraction device and the clamping and translating device are arranged in the middle of the frame. The stamping device provides stamping force for the bottom-closing wire-winding device, and the bottom-closing wire-winding device and the lower die core expansion and contraction device wind the wires at both ends of the can body; the can body feeding device is arranged on the right side of the frame, and the can body feeding device feeds the can body to the clamping and translating device; the clamping and translating device clamps and moves the can body to the bottom-closing wire-winding device and the lower die core expansion and contraction device, and clamps and moves the tinplate can above the tinplate can supporting slideway; the can bottom feeding device is arranged at the rear side of the frame, and the can bottom feeding device feeds the can bottom to the bottom-closing wire-winding device; the automatic control device controls the bottom-closing wire-winding machine to wind the wires at both ends of the can body in one forming; the bottom-closing wire-winding device includes an upper die fixing plate and a lower die core fixing plate slidably connected to four columns. The upper surface of the upper die fixing plate is fixed with an upper die fixing plate guide rod, and the lower surface is fixed with an upper die. A magnet and a lower opening wire-winding groove are arranged on the bottom surface of the upper die. The upper surface of the lower die core fixing plate is fixed with a die core and a lower die outer die cylinder. The guide rod of the lower die outer die cylinder is fixed with a lower die outer die. The lower die outer die is composed of two half-frame types, its opening faces the lower die core, and the internal shape of the half-frame type lower die outer die matches the external shape of the lower die core. An upper opening wire-winding groove is arranged on the lower die core fixing plate surrounding the lower die core. The lower surface of the lower die core fixing plate is fixed with the guide rod of a lower die core fixing plate lifting cylinder, and the lower die core fixing plate lifting cylinder is fixed with the lower surface of the frame. Support cylinders for the lower die core fixing plate are fixed on the front and rear vertical legs. The guide rod of the support cylinder for the lower die core fixing plate is fixed with a support block for the lower die core fixing plate. The lower end surface of the support block for the lower die core fixing plate is slidably connected to the column fixing plate, and the upper end surface of the support block for the lower die core fixing plate is connected to the lower die core fixing plate in a supporting manner; the stamping device includes a stamping frame fixed on the top of the frame. A stamping motor is fixed on the top of the stamping frame. A crankshaft is rotatably connected in the middle. One end of the crankshaft is fixed with a flywheel. The flywheel is belt-drivenly connected to the belt pulley of the stamping motor. A stamping clutch and a stamping cylinder are fixed on one side of the stamping frame. The guide rod of the stamping cylinder is connected to the stamping clutch. A connecting rod is rotatably connected to the crankshaft, and the connecting rod is hinged to the upper die fixing plate guide rod.

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