Fully automatic bottom buckle winding machine for tinplate cans

Abstract

The invention discloses a fully automatic bottom buckle winding machine for tinplate cans, comprising a lower mold core, which is a hollow cuboid surrounded by four lower mold core blocks, and tension spring grooves are arranged around the upper and lower end surfaces of the lower mold core, and the tension spring grooves are provided with lower mold core block connection tension springs; a shrink block groove is arranged at the center of the upper and lower end surfaces of the lower mold core, and a fixed shrink block and a dynamic shrink block are slidably connected in the shrink block groove; the fixed shrink block is fixedly connected to the bottom plate of the lower mold core; a shrink bolt is fixedly received on the dynamic shrink block, and the shrink bolt passes through the hollow of the lower mold core, the fixed shrink block, the bottom plate of the lower mold core and is hinged to a lever; one side of the bottom plate of the lower mold core is fixedly connected to the shrink cylinder of the lower mold core, and the guide rod of the shrink cylinder of the lower mold core is hinged to the other end of the lever; a lifting lug is fixedly connected to the lower surface of the bottom plate of the lower mold core corresponding to the middle position of the lever, and a rotating shaft is rotatably connected to the lifting lug, and the rotating shaft is rotatably connected to the lever. The automatic control of upper mold and demoulding is realized, and the working efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of tinplate can forming machines, in particular to a fully automatic bottom buckling winding machine for tinplate cans. Background Art

[0002] Metal cans are widely used in our production and life. The advantages of metal cans are very obvious. They have very good airtightness and can withstand high internal pressure, which can ensure that the products in the metal cans are not easy to expire. In the production and processing of tinplate cans, the two ends of the tinplate cans need to be formed by buckling the bottom winding. However, since the winding shapes of the two ends of the tinplate cans are inconsistent when the bottom winding is buckled, the molds used for the edge pressing of the two ends of the tinplate cans are different, which results in the need to go through two processes to complete the buckling bottom winding operation in the tinplate can buckle bottom winding operation, and the production efficiency is low; the existing tinplate can buckle bottom winding during the pressing process, because the tinplate is manually held, the tinplate is often offset, which affects the efficiency and quality of the tinplate cover, the yield is low, and the tinplate is wasted, which reduces the economic benefits; after the tinplate can is pressed, the worker manually takes out the metal can, and the metal can can only be produced and processed one by one, and the pressing efficiency is low. In addition, since the worker needs to take out the pressed metal cans one by one, the worker is easily crushed by the mold of the crank press during the process of taking the can, which increases the danger of production and processing for the worker. Summary of the invention

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

[0004] The technical solution of the present invention is achieved in the following manner:

[0005] The fully automatic bottom buckle winding machine for tinplate cans comprises a frame, a punching device, a bottom buckle 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 comprises four legs fixedly connected by an upper panel and a lower panel, four columns fixedly connected by an upper panel and a column fixing plate, and a tinplate can supporting slideway fixedly connected to the left side legs; the punching device is fixedly connected to the upper panel of the frame, a bottom buckle winding device, a lower die core expansion and contraction device and a clamping and translating device are arranged in the middle of the frame, the punching device provides punching force for the bottom buckle winding device, and the bottom buckle winding device and the lower die core expansion and contraction device are used to buckle the bottom at both ends of the can body; a can body feeding device is arranged on the right side of the frame The feeding device, the can body feeding device sends the can body to the clamping and translating device; the clamping and translating device moves the can body clamp to the bottom buckle winding device and the lower mold core expansion and contraction device, and moves the tinplate can clamp to the top of the tinplate can supporting slide; a can bottom feeding device is arranged on the rear side of the frame, and the can bottom feeding device sends the can bottom to the bottom buckle winding device; the automatic control device controls the bottom buckle winding machine to form the bottom buckles at both ends of the can body at one time; the lower mold core expansion and contraction device includes a lower mold core, and the lower mold core is a hollow rectangular parallelepiped surrounded by four lower mold core blocks, and tension spring grooves are arranged on the four sides of the upper and lower end faces of the lower mold core, and the tension spring grooves are provided with lower mold core block connecting tension springs, and the lower mold core block connecting tension springs are arranged in the tension spring grooves. The four lower mold core blocks are elastically connected together; the centers of the upper and lower end surfaces of the lower mold core are provided with expansion and contraction block grooves, and the fixed expansion and contraction blocks and dynamic expansion and contraction blocks matching the expansion and contraction block grooves are slidably connected in the expansion and contraction block grooves; the fixed expansion and contraction blocks are fixedly connected to the lower mold core fixing plate; the dynamic expansion and contraction blocks are fixedly connected to the expansion and contraction bolts, which pass through the hollow of the lower mold core, the fixed expansion and contraction blocks, the lower mold core fixing plate and are hinged to the lever; the lower mold core expansion and contraction cylinder is fixedly connected to one side of the lower mold core fixing plate, and the guide rod of the lower mold core expansion and contraction cylinder is hinged to the other end of the lever; a lifting ear is fixedly connected to the lower surface of the lower mold core fixing plate corresponding to the middle position of the lever, and a rotating shaft is rotatably connected to the lifting ear, and the rotating shaft is hinged to the lever The rod is rotatably connected; the four corners of the lower die core are provided with lower die core positioning holes, and expansion and contraction long holes are provided on the lower die core fixing plate corresponding to the lower die core positioning holes. Bolts pass through the lower die core positioning holes and the expansion and contraction long holes to make the lower end surface of the lower die core and the upper surface of the lower die core fixing plate slidingly connected; the stamping device includes a stamping frame fixed to the top of the frame, the top of the stamping frame is fixed to the stamping motor, the middle part is rotatably connected to the crankshaft, one end of the crankshaft is fixed to the flywheel, the flywheel is connected to the stamping motor pulley transmission connection, one side of the stamping frame is fixed with a stamping clutch and a stamping cylinder, the guide rod of the stamping cylinder is connected to the stamping clutch, the crankshaft is rotatably connected to the connecting rod, and the connecting rod is hinged to the guide rod of the upper die fixing plate.

[0006] The present invention has the following advantages:

[0007] The lower mold core expansion and contraction cylinder of the lower mold core expansion and contraction device of the present invention 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 tension spring connecting the lower mold core block, the lower mold core is expanded or contracted, realizing automatic control of upper mold and demoulding, and the working efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Attached Figure 1 It is a structural diagram of a fully automatic bottom-locking winding machine for tinplate cans.

[0009] Attached Figure 2 Yes Figure 1 CC cross-section diagram.

[0010] Attached Figure 3 It is a schematic diagram of the structure of the lower part of the fully automatic bottom buckle winding machine for tinplate cans.

[0011] Attached Figure 4 It is a structural schematic diagram of the can bottom feeding device of the fully automatic bottom buckle winding machine for tinplate cans.

[0012] Attached Figure 5 It is a structural schematic diagram of the clamping and translation device of the fully automatic bottom buckle winding machine for tinplate cans.

[0013] Attached Figure 6 The utility model is a structural schematic diagram of the connection between the lower die outer die and the lower die outer die cylinder and the lower die core fixing plate support cylinder and the lower die core fixing plate support support block of the tinplate can fully automatic bottom buckle winding machine.

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

[0015] Attached Figure 8 Yes Figure 7 Bottom view of .

[0016] Attached Fig. 9 It is a structural schematic diagram of the upper and lower end surfaces of the automatic bottom buckle winding machine for tinplate cans under the matching state of the lower mold core, the fixed expansion and contraction block, and the dynamic expansion and contraction block.

[0017] Attached Fig.10 It is a structural schematic diagram of the upper and lower end surfaces of the lower mold core of the tinplate can automatic bottom buckle winding machine.

[0018] Attached Fig.11 The utility model is a structural schematic diagram of the fixed connection of the lower die core of the lower die core fixing plate of the fully automatic bottom buckle winding machine for tinplate cans.

[0019] In the figure: 1-leg, 1.1-upper panel, 1.2-lower panel, 2-lower die outer die cylinder, 3-tinplate can support slide, 4-lower die outer die, 5-clamping cylinder, 6-translation cylinder, 7-translation cylinder bracket, 8-first clamping slide, 9-upper die, 10-upper die fixing plate, 11-upper die fixing plate guide rod, 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-P LC control device, 23-second clamping slide, 24-first clamp, 25-translation slide, 26-transmission belt, 27-active roller, 28-conveying motor, 29-conveying frame, 30-tank laser sensor, 31-tank limit block, 32-second clamp, 33-passive roller, 34-lower mold core fixing plate support cylinder, 35-column fixing plate, 36-lower mold core fixing plate support block, 37-lower mold core fixing plate lifting cylinder, 38-tank bottom lifting cylinder support plate, 39-tank bottom lifting cylinder, 40-bottom of tank Suction cup support rod, 41-suction cup under the tank bottom, 42-suction cup lifting cylinder under the tank bottom, 43-first tank bottom cage, 44-suction cup on the tank bottom, 45-suction cup lateral cylinder on the tank bottom, 46-suction cup lifting cylinder on the tank bottom, 47-suction cup lateral cylinder bracket on the tank bottom, 48-suction cup lateral cylinder under the tank bottom, 49-lower mold core, 491-lower mold core block, 492-lower mold core positioning hole, 493-lower mold core block connecting tension spring, 50-lower mold core fixing plate, 51-first slide bar, 52-translation slide rail, 53 -second slide bar, 54-clamping slideway boss, 55-translation slideway groove, 56-clamping slideway groove, 57-translation slideway boss, 58-tank bottom second positioning frame, 59-tank bottom first positioning frame, 60-second tank bottom cage, 61-tank bottom support plate, 62-tank bottom cage sliding cylinder, 63-tank bottom cage sliding slider, 64-tank bottom cage sliding rail, 65-dynamic expansion and contraction block, 66-expansion and contraction bolt, 67-fixed expansion and contraction block, 68-lever, 69-rotating shaft, 70-lifting ear, 71-lower mold core expansion and contraction cylinder, 72-expansion and contraction long hole. DETAILED DESCRIPTION

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

[0021] like Figure 1-Figure 11As shown, the fully automatic bottom buckle winding machine for tinplate cans comprises a frame, a punching device, a bottom buckle 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 comprises 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 slide 3 fixedly connected to the left side leg; the upper panel 1.2 of the frame is fixedly connected to the punching device, and the bottom buckle winding device, the lower die core expansion and contraction device, the clamping and translating device are arranged in the middle of the frame. The device comprises a punching device, a bottom buckle winding device and a lower die core expansion and contraction device to increase the punching pressure, and the bottom buckle winding device and the lower die core expansion and contraction device are used to wind the bottom buckles at both ends of the can body; a can body feeding device is arranged on the right side of the frame, and the can body feeding device sends the can body to the clamping and translation device; the clamping and translation device moves the can body clamp to the bottom buckle winding device and the lower die core expansion and contraction device, and moves the tinplate can clamp to the top of the tinplate can supporting slide 3; a can bottom feeding device is arranged on the rear side of the frame, and the can bottom feeding device sends the can bottom to the bottom buckle winding device; the automatic control device controls the bottom buckle winding machine to wind the bottom buckles at both ends of the can body into shape at one time.

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

[0023] The buckle bottom winding device includes an upper mold fixing plate 10 and a lower mold core fixing plate 50 which are slidably connected on four columns 20. The upper mold fixing plate 10 is fixedly connected to the upper mold fixing plate guide rod 11 on the upper surface and fixedly connected to the upper mold 9 on the lower surface. The bottom surface of the upper mold 9 is provided with a magnet and a lower winding groove. The lower mold core fixing plate 50 is fixedly connected to the lower mold core 49 and the lower mold outer mold cylinder 2 on the upper surface. The guide rod of the lower mold outer mold cylinder 2 is fixedly connected to the lower mold outer mold 4. The lower mold outer mold 4 is composed of two half-frames, whose openings face the lower mold core 49, and the internal shape of the half-frame lower mold outer mold 4 matches the external shape of the lower mold core 49. An upper winding groove is provided on the lower mold core fixing plate 50 fixedly connected to the lower mold core 49 around. The lower mold core fixing plate 50 is connected to the guide rod of the lower mold core fixing plate lifting cylinder 37 on the lower surface. The lower mold core fixing plate lifting cylinder 37 is fixedly connected to the bottom of the frame, and the lower mold core fixing plate supporting cylinder 34 is fixedly connected to the front and rear side legs 1. The guide rod of the lower mold core fixing plate supporting cylinder 34 is fixedly connected to the lower mold core fixing plate supporting block 36. The lower end surface of the lower mold core fixing plate supporting block 36 is slidably connected to the column fixing plate 35, and the upper end surface of the lower mold core fixing plate supporting block 36 is supported and connected to the lower mold core fixing plate 50; the buckle winding device adopts the lower mold core fixing plate and the upper mold fixing plate to move up and down along four columns, which improves the position accuracy of the upper and lower molds during the buckle bottom winding process, reduces the deviation of the tinplate, improves the efficiency and quality of the one-time forming of the buckle bottom winding at both ends of the can body, has a high yield rate, reduces the waste of tinplate, and improves the economic benefit.

[0024] The clamping translation device includes a first clamping slide 8 and a second clamping slide 23 fixedly connected to four columns 20, a clamping slide groove 56 is provided on the first clamping slide 8 and the second clamping slide 23, a clamping slide boss 54 matching the clamping slide groove 56 is slidably connected in the clamping slide groove 56, the clamping slide boss 54 is fixedly connected to the translation slide 25, the outer sides of the first clamping slide 8 and the second clamping slide 23 are fixedly connected to the clamping cylinder 5, the guide rod of the clamping cylinder 5 is fixedly connected to the translation slide 25, a translation slide groove 55 is provided on the translation slide 25, a translation slide boss 57 matching the translation slide groove 55 is slidably connected in the translation slide groove 55, the translation slide boss 57 is integrated with the translation slide 52, and the first slide rod is slidably connected at both ends of the translation slide 52 51. A second slide bar 53 is hinged to the end of the guide rod of the translation cylinder 6. The translation cylinder 6 is fixed to the translation cylinder bracket 7. The translation cylinder bracket 7 is fixed to the frame. The middle part and the right end of the translation slide rail 52 are fixed with a second clamp 32 and a first clamp 24 at intervals. The first clamp 24 and the second clamp 32 are composed of two half-frames, and their openings correspond to each other. The internal shapes of the half-frame first clamp 24 and the second clamp 32 match the external shape of the tank body. The clamping translation device adopts a sliding connection between the clamping slide groove and the clamping slide boss, and a sliding connection between the translation slide and the translation rail, and four cylinders are used to control the translation slide, which improves the stability of the movement of the clamping slide groove and the clamping slide boss and the translation slide and the translation rail, thereby improving the reliability of the performance of the whole machine.

[0025] The tank bottom feeding device comprises a tank bottom lifting cylinder support plate 38 fixed to the rear side of the standing legs, a tank bottom cage sliding rail 64, a tank bottom cage sliding cylinder 62, and a tank bottom upper suction cup transverse cylinder bracket 47, a tank bottom upper suction cup transverse cylinder 45 is fixed to the tank bottom upper suction cup transverse cylinder bracket 47, a guide rod of the tank bottom upper suction cup transverse cylinder 45 is fixed to the tank bottom upper suction cup lifting cylinder 46, and a guide rod of the tank bottom upper suction cup lifting cylinder 46 is fixed to the tank bottom upper suction cup 44; a first tank bottom positioning frame 59 and a second tank bottom positioning frame 58 arranged transversely are fixed to the standing legs below the tank bottom upper suction cup 44, a first tank bottom cage 43 and a second tank bottom cage 60 arranged longitudinally are arranged below the first tank bottom positioning frame 59, a tank bottom cage sliding block 63 is fixed to the sides of the first tank bottom cage 43 and the second tank bottom cage 60, and the tank bottom cage sliding block 63 is connected to the tank bottom cage The sliding rail 64 is slidably connected; the first tank bottom cage 43 and the second tank bottom cage 60 are provided with a tank bottom support plate 61 that can slide up and down; the guide rod of the tank bottom cage sliding cylinder 62 is fixedly connected to the second tank bottom cage 60; the tank bottom lifting cylinder support plate 38 supports and connects the tank bottom lifting cylinder 39, and the guide rod of the tank bottom lifting cylinder 39 extends into the first tank bottom cage 43 or the second tank bottom cage 60, and its end supports the tank bottom support plate 61; the inner side of the second clamping slide 23 is fixedly connected to the tank bottom suction cup horizontal cylinder 48, the guide rod of the tank bottom suction cup horizontal cylinder 48 is fixedly connected to the tank bottom suction cup lifting cylinder 42, the guide rod of the tank bottom suction cup lifting cylinder 42 is fixedly connected to the tank bottom suction cup support rod 40, the end of the tank bottom suction cup support rod 40 is fixedly connected to the tank bottom suction cup 41, and the tank bottom suction cup 41 corresponds to the bottom of the second positioning frame 58 of the tank bottom. The can bottom feeding device adopts a suction cup structure on the top and bottom of the can bottom, and accurately feeds the can bottom into the upper mold through the accurate positioning conversion of the first positioning frame and the second positioning frame, thereby realizing automatic feeding of the can bottom. When the tinplate can bottom is buckled and wound, there is no need to contact the tinplate can and the bottom buckle winding mold, thereby ensuring the personal safety of the operator. At the same time, a device for alternately using the first can bottom cage and the second can bottom cage is adopted to realize uninterrupted operation of can bottom feeding, thereby further improving work efficiency.

[0026] The can feeding device comprises 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 passive roller 33 are rotatably connected on the conveying frame 29, a transmission belt 26 is rotatably connected on the driving roller 27 and the passive roller 33, the conveying motor 28 is transmission-connected with the driving roller 27, a can limit block 31 is arranged on the conveying frame corresponding to the first clamp 24, and a can laser sensor 30 is arranged on the can limit block 31. The can feeding device sends the can to the clamping translation device.

[0027] The lower mold core expansion and contraction device comprises a lower mold core 49, which is a hollow rectangular parallelepiped surrounded by four lower mold core blocks 491, and tension spring grooves are arranged on the four sides of the upper and lower end surfaces of the lower mold core 49, and lower mold core block connecting tension springs 493 are arranged in the tension spring grooves, and the lower mold core block connecting tension springs 493 elastically connect the four lower mold core blocks 491 together; an expansion and contraction block groove is arranged in the center of the upper and lower end surfaces of the lower mold core 49, and a fixed expansion and contraction block 67 and a dynamic expansion and contraction block 65 matching the expansion and contraction block groove are slidably connected in the expansion and contraction block groove; the fixed expansion and contraction block 67 is fixedly connected to the lower mold core fixing plate 50; the dynamic expansion and contraction block 65 is fixedly connected to the receiving and contraction bolt 66, and the expansion and contraction bolt 66 passes through the hollow of the lower mold core 49, the fixed expansion and contraction block 67, the lower mold core fixing plate 50 and is hinged to the lever 68; one side of the lower mold core fixing plate 50 is fixedly connected to the lower mold core expansion and contraction cylinder 7 1. The guide rod of the lower mold core expansion and contraction cylinder 71 is hinged to the other end of the lever 68; a lifting ear 70 is fixedly connected to the lower surface of the lower mold core fixing plate 50 at the middle position corresponding to the lever 68, and a rotating shaft 69 is rotatably connected to the lifting ear 70, and the rotating shaft 69 is rotatably connected to the lever 68; the four corners of the lower mold core 49 are provided with lower mold core positioning holes 492, and the lower mold core fixing plate 50 corresponding to the lower mold core positioning holes 492 is provided with expansion and contraction elongated holes 72, and bolts pass through the lower mold core positioning holes 492 and the expansion and contraction elongated holes 72 to make the lower end surface of the lower mold core 49 and the upper surface of the lower mold core fixing plate 50 slidably connected; the lower mold core expansion and contraction cylinder of the lower mold 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 bolts, and under the action of the tension spring connecting the lower mold core block, the lower mold core is expanded or contracted, thereby realizing automatic control of upper mold and demoulding, and the working efficiency is high.

[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 buckle 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. Can body clamping and translation: the can body feeding device transports the can body to the clamping and translation device. When the can body reaches the can body limit block 31, the can body laser sensor 30 sends a signal to the PLC control device 21. The guide rod of the clamping cylinder 5 of the PLC control device extends to make the first clamp 24 clamp the can body. The guide rod of the translation cylinder 6 contracts to drive the translation slide rail 52 to translate to the left, so that the can body is translated to the bottom of the upper mold 9.

[0034] 3. The tank bottom is sucked into the upper mold: at the same time, the guide rod of the tank bottom lifting cylinder 39 is extended to send the tank bottom into the first tank bottom positioning frame 59, the suction cup 44 on the tank bottom sucks the top of the tank bottom, the guide rod of the suction cup lifting cylinder 46 on the tank bottom shrinks, the suction cup transverse cylinder 45 on the tank bottom is extended to send the tank bottom into the second tank bottom positioning frame 58, the guide rod of the suction cup transverse cylinder 48 on the tank bottom is extended to drive the suction cup 41 on the bottom of the tank to the bottom of the second tank bottom positioning frame 58, the guide rod of the suction cup lifting cylinder 42 on the bottom of the tank shrinks, the suction cup 41 on the bottom of the tank sucks the bottom of the tank, the suction cup 44 on the bottom of the tank is detached, the guide rod of the suction cup lifting cylinder 42 on the bottom of the tank is extended, the guide rod of the suction cup transverse cylinder 48 on the bottom of the tank shrinks to drive the tank bottom to the bottom of the upper mold 9, and the magnet in the upper mold 9 sucks the groove of the tank bottom upward to the working surface of the upper mold 9;

[0035] 4. The lower mold holds the tank body tight: At the same time, the guide rod of the lower mold core fixing plate lifting cylinder 37 extends, driving the lower mold core fixing plate to move upward along the column 20, so that the lower mold core 49 is inserted into the tank body cavity, and the guide rod of the lower mold core expansion and contraction cylinder 71 contracts, driving the dynamic expansion and contraction block 65 to move downward through the lever 68 and the expansion and contraction bolt 66. Under the action of the dynamic expansion and contraction block 65 and the fixed expansion and contraction block 67, the lower mold core block 491 expands to the surroundings, and the lower mold core 49 holds the tank body cavity tight, and the guide rod of the clamping cylinder 5 contracts, and the first clamp 24 is separated from the tank body;

[0036] 5. Return of 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 return to the left translation position;

[0037] 6. Lower mold support: At the same time, the guide rod of the lower mold core fixing plate support cylinder 34 is extended, so that the upper end surface of the lower mold core fixing plate support block 36 supports the lower mold core fixing plate 50;

[0038] 7. The lower mold outer mold clamps the can body: Subsequently, the guide rod of the lower mold outer mold cylinder 2 is extended to clamp the lower mold outer mold 4 to the can body;

[0039] 8. Upper and lower stamping winding: Subsequently, the guide rod of the stamping cylinder 19 is extended, the stamping clutch 18 is engaged to rotate the flywheel 17, the connecting rod 12 drives the upper die fixing plate guide rod 11 to move downward, and the upper die fixing plate guide rod 11 drives the upper die fixing plate 10 to move downward along the column 20, and the impact force causes the bottom of the tank in the upper die 9 to be stuck into the lower mouth of the tank body, and the lower mouth winding and upper mouth winding operations are completed at the same time;

[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. Fully automatic bottom buckle winding machine for tinplate cans, characterized by: The machine comprises a frame, a punching device, a bottom buckle 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 comprises four legs fixedly connected by an upper panel and a lower panel, four columns fixedly connected by an upper panel and a column fixing plate, and a tinplate can supporting slideway fixedly connected to the left side leg; the punching device is fixedly connected to the upper panel of the frame, a bottom buckle winding device, a lower die core expansion and contraction device and a clamping and translating device are arranged in the middle of the frame, the punching device provides punching force for the bottom buckle winding device, and the bottom buckle winding device and the lower die core expansion and contraction device are used to buckle the bottom at both ends of the can body; a can body feeding device is arranged on the right side of the frame, and the can body feeding device The can body is sent to the clamping and translating device; the clamping and translating device moves the can body clamp to the bottom buckle winding device and the lower mold core expansion and contraction device, and moves the tinplate can clamp to the top of the tinplate can supporting slide; a can bottom feeding device is arranged on the rear side of the frame, and the can bottom feeding device sends the can bottom to the bottom buckle winding device; the automatic control device controls the bottom buckle winding machine to form the bottom buckles at both ends of the can body at one time; the lower mold core expansion and contraction device includes a lower mold core, and the lower mold core is a hollow rectangular parallelepiped surrounded by four lower mold core blocks, and tension spring grooves are arranged on the four sides of the upper and lower end faces of the lower mold core, and the tension spring grooves are provided with lower mold core block connecting tension springs, and the lower mold core block connecting tension springs connect the four lower molds The core blocks are elastically connected together; an expansion and contraction block groove is provided in the center of the upper and lower end surfaces of the lower mold core, and a fixed expansion and contraction block and a dynamic expansion and contraction block matching the expansion and contraction block groove are slidably connected in the expansion and contraction block groove; the fixed expansion and contraction block is fixedly connected to the lower mold core fixing plate; the dynamic expansion and contraction block is fixedly connected to the expansion and contraction bolt, which passes through the hollow of the lower mold core, the fixed expansion and contraction block, the lower mold core fixing plate and is hinged to the lever; one side of the lower mold core fixing plate is fixedly connected to the lower mold core expansion and contraction cylinder, and the guide rod of the lower mold core expansion and contraction cylinder is hinged to the other end of the lever; a lifting ear is fixedly connected to the lower surface of the lower mold core fixing plate corresponding to the middle position of the lever, and a rotating shaft is rotatably connected to the lifting ear, and the rotating shaft rotates with the lever Connection; lower die core positioning holes are provided at the four corners of the lower die core, and expansion and contraction holes are provided on the lower die core fixing plate corresponding to the lower die core positioning holes, and bolts pass through the lower die core positioning holes and the expansion and contraction holes to make the lower end surface of the lower die core slidably connected with the upper surface of the lower die core fixing plate; the stamping device includes a stamping frame fixed to the top of the frame, the top of the stamping frame is fixed to the stamping motor, the middle part is rotatably connected to the crankshaft, one end of the crankshaft is fixed to the flywheel, the flywheel is connected to the stamping motor pulley transmission, a stamping clutch and a stamping cylinder are fixed to one side of the stamping frame, the guide rod of the stamping cylinder is connected to the stamping clutch, the crankshaft is rotatably connected to the connecting rod, and the connecting rod is hinged to the guide rod of the upper die fixing plate.

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