Automatic cover conveyor for steel drums after painting

Abstract

The present invention discloses a de-covering conveying device for an automatic capping production line after steel drums are painted, comprising two parallel conveying chains A, the two ends of the conveying chains A are respectively connected to sprockets A in driving connection, the sprockets A are rotatably connected to the de-covering conveying device, one end of the sprockets A is coaxially fixedly connected to a transmission wheel B, the de-covering conveying device is also rotatably connected to a transmission wheel A connected to the transmission wheel B, the transmission wheel A is connected to a driving motor C fixed to the de-covering conveying device through a transmission device C, the spacing between the conveying chains A is smaller than the diameter of the steel drum, and the conveying chains A are symmetrically located on both sides of the barrel conveying frame A. As can be seen from the above structure, the de-covering conveying device for the automatic capping production line after steel drums are painted of the present invention, through the action of the de-covering conveying device, enables the barrel housing cover used for painting to be removed before the steel drum is capped, thereby facilitating the subsequent barrel capping operation and facilitating the recovery of the removed cover.

Description

Technical Field

[0001] The invention relates to the technical field of an automatic capping production line for steel drums, and in particular to a cover removal and conveying device of the automatic capping production line after the steel drums are painted. Background Art

[0002] During the production process of steel drums, the steel plates are first rolled into barrels, then stamped into barrel bodies, and then the barrel bottoms and barrel covers formed by the pressure of the steel plates are fixed to the barrel bodies, and then the steel drums are spray-painted, dried, and finally covered.

[0003] At present, in the production process of steel drums, except for the covering process, the rest of the processes have basically been automated. Although there are some automatic covering devices for the covering process of steel drums, the automation efficiency of steel drum covering is low, and there is no special automatic production line for steel drum covering. There are only some automatic equipment for individual processes. Moreover, the equipment involved in the process of steel drum covering cannot be connected into a production line due to different production speeds. Even if they are connected into a production line, there are many processes involved in the covering process, at least involving: 1. Removing the cover placed on the mouth of the steel drum during painting, 2. Cooling the steel drum and replacing the air in the steel drum, 3. Injecting inert gas into the steel drum to facilitate the later detection of the sealing performance of the steel drum, 4. Installation of the large and small covers of the steel drum, 5. Installation of the rain cover of the small cover of the steel drum; as long as the efficiency of a certain process is low, the production efficiency of the entire production line will be low. Therefore, there is currently no production line with relatively high production efficiency and high degree of automation on the market for automatic covering production after steel drum painting. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a cover-removing conveying device for an automatic cover-up production line after steel drum painting, so as to realize the complete automation of the cover-up process of steel drums after painting, and the materials can be directly sold after being discharged, effectively reducing the labor cost and improving the automation and assembly line of production; through the function of the feeding conveying device, not only the automatic feeding of the cover-up production line can be realized, but also the automatic feeding of two cover-up production lines can be satisfied at the same time, so as to further improve the production efficiency and reduce the labor intensity; through the function of the transition conveying device, it is possible to avoid the steel drums of the feeding conveying device being transported too fast and too much to affect the subsequent production rhythm; through the function of the cover-removing conveying device, the barrel housing cover used for painting is removed before the steel drum is covered, so as to facilitate the subsequent barrel cover covering operation and facilitate the recycling of the removed cover; through the function of the cover-up conveying device, it is possible to save the working station of the steel drum, shorten the covering time of a single steel drum, and improve the production efficiency of a single steel drum.

[0005] The technical solution adopted by the invention is:

[0006] The cover removal conveyor of the automatic cover production line after the steel drum is painted includes a loading conveyor, a cover removal conveyor, a cover conveyor and a unloading conveyor in sequence along the conveying direction of the steel drum;

[0007] The loading conveyor conveys the steel drum to the cover removal conveyor;

[0008] The cover-removing conveying device comprises a steel barrel rotating device A and a cover-removing device, wherein the steel barrel rotating device A rotates the large barrel mouth and the small barrel mouth on the top of the steel barrel to match the cover-removing device, and the cover-removing device separates the cover covering the large barrel mouth and the small barrel mouth on the top of the steel barrel from the steel barrel, and the cover-removing conveying device conveys the steel barrel with the cover removed to the upper cover conveying device;

[0009] The upper cover conveying device includes a steel barrel rotating device B, an air ventilation device, an upper cover device, an inert gas injection device and a rain cover upper cover device. The steel barrel rotating device B rotates the large barrel mouth and the small barrel mouth on the top of the steel barrel to match the air ventilation device, the upper cover device, the inert gas injection device and the rain cover upper cover device. The air ventilation device extends from the large barrel mouth or the small barrel mouth on the top of the steel barrel into the steel barrel to inject air into the steel barrel. The upper cover device first covers the small barrel mouth on the top of the steel barrel, and then the inert gas injection device extends from the large barrel mouth on the top of the steel barrel into the steel barrel to inject inert gas into the steel barrel. The upper cover device covers the large barrel mouth on the top of the steel barrel filled with inert gas, and the rain cover upper cover device fixes the rain cover on the small barrel mouth. The upper cover conveying device conveys the covered steel barrel to the unloading conveying device.

[0010] A further improvement of the present invention is that a transition conveyor device is connected between the loading conveyor device and the cover removal conveyor device, and the transition conveyor device transfers the steel barrel of the loading conveyor device to the cover removal conveyor device. A steel barrel limiting device is provided on the transition conveyor device, and the position of the steel barrel limiting device of the transition conveyor device is connected to the cover removal conveyor device through a barrel transfer rack A.

[0011] A further improvement of the present invention is that the transition conveying device includes side frames B arranged in parallel on both sides, and a plurality of conveying rollers B are evenly distributed between and along the side frames B. The conveying rollers B are connected to the side frames B through a transmission device B and rotate synchronously and at the same speed with a driving motor B fixed to the transition conveying device.

[0012] A further improved solution of the present invention is that the steel drum limiting device includes a swing rod A symmetrically arranged on the side frames B on both sides, the middle part of the swing rod A is horizontally swingably connected with the corresponding side frame B through the vertical axis A, the end of the swing rod A facing the cover removal conveyor is provided with a limiting vertical roller rotatably connected around the vertical axis B, the other end of the swing rod A is swingably connected with the end of the piston rod D of the piston D, the piston D is swingably connected with the corresponding side frame B through the swing frame, and the swing frame is fixed to the side frame B;

[0013] When the piston rod D extends out of the piston D, the rocker arm A drives the limit rollers to swing toward each other to the maximum stroke, at which time the distance between the limit rollers is smaller than the diameter of the steel drum; when the piston rod D retracts into the piston D, the rocker arm A drives the limit rollers to swing back to the maximum stroke, at which time the distance between the limit rollers is larger than the diameter of the steel drum.

[0014] A further improvement of the present invention is that the barrel transfer rack A includes a parallel rack A fixed between a transition conveyor and a cover removal conveyor, and tracks A arranged along the parallel rack A are fixed to the top of the parallel rack A, and a slide B reciprocating along the track A is provided on the track A, and the slide B is fixedly connected to a piston rod E of a piston E fixed to the parallel rack A, and a support plate A is movably connected to the top of the slide B through a piston F, and the piston F is fixed to the slide B, and the piston rod F of the piston F is fixed to the support plate A.

[0015] A further improvement of the present invention is that when the piston rod E retracts the piston E to the maximum stroke, the support plate A is located at the position below the steel barrel limited by the steel barrel limiting device; when the piston rod E extends the piston E to the maximum stroke, the support plate A is located at the cover removal conveying device; when the piston rod F extends the piston F to the maximum stroke, the top surface of the support plate A is higher than the height of the contact part between the steel barrel and the cover removal conveying device and the top of the conveying roller B; when the piston rod F retracts the piston F to the maximum stroke, the top surface of the support plate A is lower than the height of the contact part between the steel barrel and the cover removal conveying device and the top of the conveying roller B.

[0016] A further improvement of the present invention is that the parallel frame A is located between the side frames B, and the width of the slide B and the width of the support plate A are both smaller than the spacing between the side frames B.

[0017] A further improvement of the present invention is that a plurality of parallel conveying side rollers are provided between the side frame B and the support plate A and along the conveying direction of the transition conveying frame, the conveying side rollers are rotatably connected to the side frame B, the tops of the conveying side rollers are flush with the tops of the conveying rotating rollers, and the conveying side rollers are synchronously and speed-connected to the conveying rotating rollers.

[0018] A further improvement of the present invention is that the loading conveyor frame includes side frames A arranged in parallel on both sides, and multiple conveying rollers A are evenly distributed between and along the side frames A. The conveying rollers A are connected to the side frames A through a transmission device A and rotate synchronously and at the same speed with a driving motor A fixed to the loading conveyor device.

[0019] A further improvement of the present invention is that the end of the loading conveyor rack is connected to one side of the starting end of the transition conveyor rack, the loading conveyor rack and the transition conveyor rack are vertically arranged, and the side frame B of the transition conveyor rack facing the loading conveyor rack is provided with a slot B matching the loading conveyor rack, and a guide roller that rotates horizontally around a vertical axis C is provided at the top of the side frame B, located on the side of the slot B close to the cover removal conveyor device, and the distance between the edge of the guide roller rim and the side frame B on the other side and the distance from the side frame A on the side away from the guide roller are both greater than or equal to the diameter of the steel drum.

[0020] A further improvement of the present invention is that a side frame A of the loading conveyor frame close to the cover removal conveyor device is also provided with a slot A for connecting to a spare cover production line, and a slide A which reciprocates along the axial direction of the conveying roller A is provided at the bottom of the loading conveyor frame at the position of the slot A, and a plurality of push rods are movably connected to the top of the slide A, and the push rods are located between two adjacent conveying rollers A, and the distance between two adjacent push rods is smaller than the diameter of the steel drum, and the push rods are fixed to the end of the piston rod B of the piston B, and the piston B is fixed on the slide A, and the slide A is fixedly connected to the piston rod A of the piston A fixed to the loading conveyor frame.

[0021] A further improvement of the present invention is that when the piston rod A retracts the piston A to the maximum stroke, the push rod is located at the side frame A in the loading conveyor frame, away from the side where the slot A is located. At this time, the distance between the push rod and the slot A is greater than or equal to the diameter of the steel barrel; when the piston rod A extends out of the piston A to the maximum stroke, the push rod is located at the side frame A in the loading conveyor frame, close to the side where the slot A is located; when the piston rod B retracts the piston B to the maximum stroke, the top of the push rod is lower than the top of the conveying roller A; when the piston rod B extends out of the piston B to the maximum stroke, the top of the push rod is higher than the top of the conveying roller A.

[0022] A further improvement of the present invention is that, in the gaps between all two adjacent conveying rollers A, a guide baffle is provided in the gap within the range of the slot A and closest to the transition conveying frame, and the guide baffle is movably connected up and down by a piston C, and the piston C is fixed to the loading conveying frame and is located below the conveying roller A, and the side of the guide baffle facing the slot A extends to the side frame A on the side where the slot A is located.

[0023] A further improvement of the present invention is that the guide baffle is fixed to the end of the piston rod C of the piston C; when the piston rod C retracts the piston C to the maximum stroke, the top of the guide baffle is lower than the top of the conveying roller A; when the piston rod C extends out of the piston C to the maximum stroke, the top of the guide baffle is higher than the top of the conveying roller A.

[0024] A further improvement of the present invention is that the cover removal conveying device includes two parallel conveying chains A, both ends of the conveying chain A are respectively connected to the sprocket A, the sprocket A is rotatably connected to the cover removal conveying device, one end of the sprocket A is coaxially fixedly connected to a transmission wheel B, the cover removal conveying device is also rotatably connected to a transmission wheel A that is connected to the transmission wheel B, the transmission wheel A is connected to a driving motor C fixed to the cover removal conveying device through a transmission device C, the spacing between the conveying chains A is smaller than the diameter of the steel barrel, and the conveying chains A are symmetrically located on both sides of the barrel transfer rack A.

[0025] A further improvement of the present invention is that a horizontal support rod is fixed at the top of the de-covering conveying device and between the two sprockets A corresponding to the same conveying chain A, and the horizontal support rod is fixed to the de-covering conveying device through an "L"-shaped vertical rod; the conveying chain A wound around the upper part of the sprocket A is placed on the horizontal support rod.

[0026] A further improvement of the present invention is that the cover removal conveying device also includes a cover removal device disposed between the two sprockets A and located above the conveying chain A, and a steel drum rotating device A disposed on the side of the cover removal device facing the feeding conveying device.

[0027] A further improvement of the present invention is that the cover removal device includes a gantry fixed on the cover removal conveyor device, the conveyor chain A passes through the gantry, and magnetic blocks are respectively provided on both sides of the top of the gantry. The magnetic blocks move horizontally back and forth along a conveying direction perpendicular to the chain A, and the magnetic blocks move up and down reciprocatingly along a vertical direction. Cover drop tubes are also fixed on both sides of the gantry, and a sensor B is also provided downward at the rear end of the top of the gantry, and a sensor C matching the steel barrel rotating device A is also provided on one side of the front end of the top of the gantry, and the distance between the sensor C and the axis of the steel barrel located at the position of the steel barrel rotating device A is greater than the maximum distance between the edge of the small barrel mouth at the top of the steel barrel and the axis of the steel barrel and is less than the maximum distance between the edge of the large barrel mouth at the top of the steel barrel and the axis of the steel barrel. ; The movable range of the magnetic block under the action of the corresponding piston E passes through the corresponding side of the cover tube, the feed port of the cover tube is upward, and the height of the edge of the feed port of the cover tube facing the conveyor chain A is lower than the height of the edge of the feed port on the side facing away from the conveyor chain A. When the magnetic block moves inward to the maximum stroke, the magnetic block is respectively located above the corresponding barrel mouth of the steel drum; when the magnetic block moves outward to the maximum stroke, the magnetic block is located on the outside of the corresponding cover tube; when the magnetic block moves downward to the maximum stroke, the magnetic force of the magnetic block attracts the cover at the corresponding barrel mouth of the steel drum; when the magnetic block moves upward to the maximum stroke, the height of the bottom of the cover adsorbed by the bottom of the magnetic block is between the heights of the edges on both sides of the feed port of the cover tube.

[0028] A further improvement of the present invention is that the magnetic block on each side is respectively fixed to the end of the piston rod D of the piston D on the corresponding side, the piston rod D extends downward from the piston D, and the piston D is fixed to the end of the piston rod E of the piston E on the corresponding side. The piston D drives the magnetic block to reciprocate up and down, and the piston E drives the magnetic block to reciprocate horizontally perpendicular to the conveying direction of the conveyor chain A. The pistons E are respectively fixed to the top of the gantry, and the movable range of the magnetic block under the action of the corresponding piston E passes through the cover drop tube on the corresponding side.

[0029] A further improvement of the present invention is that a sliding frame is provided at the top of the gantry frame and is slidably connected laterally along the top of the gantry frame. The sliding frame is fixed to the end of the piston rod E of the piston E, and the piston D is fixed to the sliding frame.

[0030] A further improvement of the present invention is that the sliding frame reciprocates along a transverse horizontal slide rail A provided on the top of the gantry.

[0031] A further improvement of the present invention is that the lower discharge section of the cover drop pipe is inclined from top to bottom in a direction away from the gantry, and the bottom of the discharge section is a discharge opening.

[0032] A further improvement scheme of the present invention is that the steel barrel rotating device A includes a rotating base A fixed to the de-covering conveying device, and the rotating base A is located below the upper half of the conveying chain A. Clamping seats A are respectively provided on the rotating base A and corresponding to the outer sides of the conveying chain A. The front and rear ends of the top of each side of the clamping seat A facing the edge of one side of the conveying chain A are respectively provided with clamping rollers A connected for horizontal rotation around a vertical axis, and the positions of the clamping rollers A on both sides correspond to each other, and the clamping rollers A of the clamping seat A on one side are provided with driving force by a driving motor D fixed to the clamping seat A, and a sensor A is provided on the top of the rotating base A between the conveying chains A, and the top of the sensor A is lower than the top of the conveying chain A.

[0033] A further improvement of the present invention is that the clamping seat A makes horizontal reciprocating movement perpendicular to the conveying direction of the conveying chain A relative to the rotating base A through the piston F, and the piston F is fixed to the rotating base A; when the clamping seat A moves back to back to the maximum stroke, the distance between the corresponding clamping rollers A on both sides is greater than the diameter of the steel barrel; when the clamping seat A moves toward each other to the maximum stroke, the distance between the corresponding clamping rollers A on both sides is less than the diameter of the steel barrel.

[0034] A further improvement of the present invention is that a horizontal slide rail B is fixed on the rotating base A along the moving direction of the clamping seat A, and the clamping seat A reciprocates with the rotating base A along the horizontal slide rail B.

[0035] A further improvement of the present invention is that the cover removal conveyor device and the cover upper conveyor device are connected via a barrel transfer rack B, the barrel transfer rack B comprises a parallel rack B fixed between the cover removal conveyor device and the cover upper conveyor device, the tops of the parallel racks B are respectively fixed with tracks B arranged along the parallel racks B, the tracks B are provided with a slide C which reciprocates along the tracks B, the slide C is fixedly connected to a piston rod G of a piston G fixed to the parallel rack B, the top of the slide C is movably connected to a support plate B via a piston H, the piston H is fixed to the slide C, and the piston rod H of the piston H is fixed to the support plate B.

[0036] A further improvement of the present invention is that when the piston rod G retracts the piston G to the maximum stroke, the support plate B is located at the position below the steel barrel at the end of the cover removal conveyor; when the piston rod G extends out of the piston G to the maximum stroke, the support plate B is located at the position of the steel barrel rotating device B of the cover conveyor; when the piston rod H extends out of the piston H to the maximum stroke, the top surface of the support plate B is higher than the height of the contact part between the steel barrel and the cover removal conveyor and the height of the contact part between the steel barrel and the cover conveyor; when the piston rod H retracts the piston H to the maximum stroke, the top surface of the support plate B is lower than the height of the contact part between the steel barrel and the cover removal conveyor and the height of the contact part between the steel barrel and the cover conveyor.

[0037] A further improvement of the present invention is that the parallel frame B is located between the side frames B, and the support plate B is located between the two parallel conveyor chains A.

[0038] A further improvement scheme of the present invention is that the upper cover conveying device is movably connected with a steel barrel stepping conveying device, and the steel barrel stepping conveying device simultaneously conveys the steel barrel located at the steel barrel rotating device B, the steel barrel located at the air ventilation device, the steel barrel located at the upper cover device and the steel barrel located at the rainproof cover upper cover device to the position of the air ventilation device, the position of the upper cover device, the position of the rainproof cover upper cover device and the position of the conveying chain B respectively. The conveying chain B is provided with two parallel ones, which are axially symmetrical about the symmetry axis of the upper cover conveying device and are located between the upper cover conveying device and the discharging conveying device. The conveying chain B is wound around the transmission wheel C, and the transmission wheel C is rotatably connected to the upper cover conveying device. The upper cover conveying device is also provided with a driving motor F, and the driving motor F is transmission-connected to the transmission wheel C.

[0039] A further improvement of the present invention is that the steel barrel stepping conveying device includes a pair of parallel rotating rods arranged along the steel barrel conveying direction of the upper cover conveying device, and the parallel rotating rods are slidably connected to two tracks C arranged parallel to the steel barrel conveying direction at the top of the upper cover conveying device through a sliding frame. The parallel rotating rods are rotatably connected to the sliding frame around the axis of the parallel rotating rods through a driving motor E fixed to the upper cover conveying device. A plurality of groups of limiting convex rods are uniformly distributed on the top of the parallel rotating rods and along the length direction of the parallel rotating rods, each group of limiting convex rods matches the bottom of the steel barrel, and the conveying chain B is located between the tracks C. The upper cover conveying device is also fixed with a driving motor G, and the driving motor G drives the steel barrel stepping conveying device to move along the horizontal slide rail C.

[0040] A further improved solution of the present invention is that the limiting protrusion is fixedly connected to the parallel rotating rod through a strip connecting piece, and the length direction of the strip connecting piece is parallel to the parallel rotating rod.

[0041] A further improvement scheme of the present invention is that each group of limiting cams includes four limiting cams, and two limiting cams are symmetrically provided on each side of the parallel rotating rod; when the first group of limiting cams along the conveying direction of the steel drum is located correspondingly at the steel drum rotating device B, the air ventilation device, the upper cover device and the rainproof cover upper cover device also have a corresponding group of limiting cams respectively; when the first group of limiting cams along the conveying direction of the steel drum is located correspondingly at the air ventilation device, the upper cover device, the rainproof cover upper cover device and the discharge conveying device also have a corresponding group of limiting cams respectively.

[0042] A further improvement of the present invention is that the parallel rotating rod is composed of a plurality of rotating rod units connected end to end, the limiting protrusions are respectively fixedly connected to the rotating rod units, two adjacent rotating rod units are connected via a transmission connecting seat, the rotating rod units are respectively rotatably connected to the supporting stand provided on the top of the connecting seat base, and the transmission connecting seat is slidably connected to the upper cover conveying device via track C.

[0043] A further improved solution of the present invention is that the limiting protrusion is fixedly connected to the rotating rod unit through a strip connecting piece, and the length direction of the strip connecting piece is parallel to the rotating rod unit.

[0044] A further improvement of the present invention is that the transmission connecting seat includes a connecting seat base plate connected to a track C, a piston I is fixed on the connecting seat base plate, and the end of the piston rod I of the piston I is synchronously connected to the rotating rod unit connected to the transmission connecting seat through a connecting rod transmission mechanism movably connected to the connecting seat base plate. When the piston rod I extends out of the piston I to the maximum stroke, the rotating rod unit drives the limiting cam to rotate outward until the limiting cam and the rotating rod unit are in the same horizontal plane or the cam is located on the lower side of the rotating rod unit; when the piston rod I retracts the piston I to the maximum stroke, the rotating rod unit drives the limiting cam to rotate upward to a vertical position.

[0045] A further improvement of the present invention is that a connecting seat top plate is fixed above the connecting seat bottom plate through a supporting frame, the connecting seat top plate is fixed to the top of the supporting frame, the piston I and the connecting rod transmission mechanism are respectively located between the connecting seat top plate and the connecting seat bottom plate, and the top surface of the connecting seat top plate is flush with the top of the rotating rod unit.

[0046] A further improvement of the present invention is that a transmission box is fixed to the bottom of one of the transmission connecting seats, a nut pair A is rotatably connected inside the transmission box, the nut pair A is transmission-connected to a transmission screw A coaxially fixed to the output shaft of the drive motor G, and both ends of the transmission screw A are rotationally connected to the upper cover conveying device through bearing seats.

[0047] A further improved solution of the present invention is that a horizontal connecting rod is fixedly connected between the connecting seat base near the end of the horizontal rotating rod and the sliding frame at the corresponding end.

[0048] A further improvement of the present invention is that railings are symmetrically fixedly connected to both sides of the top of the upper cover conveying device, corresponding to the position of the air ventilation device to the rainproof cover upper cover device, along the steel barrel conveying direction of the upper cover conveying device.

[0049] A further improvement of the present invention is that an adjustable foot support is provided at the bottom of the supporting leg of the upper cover conveying device.

[0050] A further improvement of the present invention is that the steel drum rotating device B includes a rotating base B symmetrically fixed to the upper cover conveying device and located on both sides of the horizontal slide rail C, and clamping seats B are respectively provided on the rotating base B corresponding to the outer sides of the steel drum stepping conveying device, and the front and rear ends of the top of each side of the clamping seat B facing the edge of one side of the steel drum stepping conveying device are respectively provided with clamping rollers B connected for horizontal rotation around a vertical axis, and the positions of the clamping rollers B on both sides correspond to each other, and the clamping rollers B of the clamping seat B on one side are provided with driving force by a driving motor H fixed to the clamping seat B.

[0051] A further improvement of the present invention is that the clamping seat B makes horizontal reciprocating movement perpendicular to the conveying direction of the steel barrel relative to the rotating base B through the piston J, and the piston J is fixed to the rotating base B; when the clamping seat B moves back to back to the maximum stroke, the distance between the corresponding clamping rollers B on both sides is greater than the diameter of the steel barrel; when the clamping seat B moves toward each other to the maximum stroke, the distance between the corresponding clamping wheels B on both sides is less than the diameter of the steel barrel.

[0052] A further improvement of the present invention is that a horizontal slide rail D is fixed on the rotating base B along the moving direction of the clamping seat B, and the clamping seat B reciprocates with the rotating base B along the horizontal slide rail D.

[0053] A further improvement of the present invention is that the air ventilation device, the upper cover device, and the rainproof cover device are all arranged on the top of the top frame, the supporting legs of the top frame are symmetrically arranged on both sides of the upper cover conveying device, and the top of the top frame is also provided with a sensor D matching the steel barrel rotating device B and a steel barrel mouth positioning device A, the air ventilation device is sequentially provided with two along the steel barrel conveying direction on the upper cover conveying device, and the upper cover device is sequentially provided with two along the steel barrel conveying direction on the upper cover conveying device; a placing table is also provided on one side of the top frame, and a small barrel mouth cover loading device and a large barrel mouth cover loading device corresponding to the upper cover device, as well as a rainproof cover loading device corresponding to the rainproof cover device are fixed on the placing table.

[0054] The sensor D is matched with the steel drum rotating device B, and the sensor D is located on the side of the steel drum rotating device B facing the cover removal conveying device;

[0055] The steel barrel mouth positioning device A matches the previous air exchange device, and the steel barrel mouth positioning device A corresponds to the steel barrel located at the position of the previous air exchange device; and at this time, the previous air exchange device corresponds to the small barrel mouth of the steel barrel at its position;

[0056] The rear air ventilation device matches the front upper cover device, and the rear air ventilation device corresponds to the steel barrel located at the position of the front upper cover device; the rear air ventilation device corresponds to the large barrel opening of the steel barrel at the position, and at this time, the front upper cover device corresponds to the small barrel opening of the steel barrel at the position;

[0057] The inert gas injection device corresponds to the large barrel opening of the steel barrel at the location;

[0058] The latter upper cover device matches the rain cover upper cover device, and the latter upper cover device corresponds to the large barrel opening of the steel barrel at the location, and at this time the rain cover upper cover device corresponds to the small barrel opening of the steel barrel at the location.

[0059] A further improved solution of the present invention is that the sensor D is fixed to the end of the piston rod K of the piston K by installing the connecting plate A, the piston rod K extends downward from the piston K, the piston K is fixed to the top frame, and the distance between the sensor D and the axis of the steel barrel located at the position of the steel barrel rotating device B is greater than the maximum distance between the edge of the small barrel mouth at the top of the steel barrel and the axis of the steel barrel and is less than the maximum distance between the edge of the large barrel mouth at the top of the steel barrel and the axis of the steel barrel;

[0060] When the piston rod K extends out of the piston K to the maximum stroke, the sensor D works; when the piston rod K retracts back to the piston K to the maximum stroke, the sensor D stops working.

[0061] A further improved solution of the present invention is that the piston K is fixed to a mounting plate fixed to the top frame through an adjusting transverse plate.

[0062] A further improved solution of the present invention is that the steel barrel mouth positioning device A comprises two sets of clamps movably connected between the top frame and the upper cover conveying device, which are matched with the outer side walls of the large barrel mouth and the small barrel mouth of the top of the steel barrel respectively, and the clamps are respectively fixedly connected to the ends of the piston rod L of the piston L, the piston L is fixed to the top frame, and the piston rod L extends downwardly out of the piston L;

[0063] When the piston rod L extends out of the piston L to the maximum stroke, the height of the clamp matches the height of the mouth of the steel barrel. When the piston rod L retracts the piston L to the maximum stroke, the height of the clamp is higher than the top of the mouth of the steel barrel.

[0064] A further improvement of the present invention is that the air exchange device includes a compressed air pipe fixed to the end of a piston rod M, the piston rod M extends downwardly out of a piston M, and the piston M is fixed to the top frame through a mounting bracket A;

[0065] When the piston rod M extends downwardly and the piston M reaches the maximum stroke, the bottom of the compressed air pipe extends into the steel barrel from the barrel mouth of the steel barrel, and the compressed air intake device connected to the compressed air pipe takes in air; when the piston rod M retracts upward and the piston M reaches the maximum stroke, the compressed air intake device connected to the compressed air pipe stops taking in air, and the bottom end of the compressed air pipe is higher than the barrel mouth of the steel barrel.

[0066] A further improvement of the present invention is that the inert gas injection device includes an inert gas pipe fixed to the end of a piston rod N, the piston rod N extends downwardly out of a piston N, and the piston N is fixed to a top frame through a mounting frame B;

[0067] When the piston rod N extends downwardly and the piston N reaches the maximum stroke, the bottom of the inert gas pipe extends into the steel barrel from the large barrel mouth of the steel barrel, and the inert gas intake device connected to the inert gas pipe takes in air; when the piston rod N retracts upward and the piston N reaches the maximum stroke, the inert gas intake device connected to the inert gas pipe stops taking in air, and the bottom end of the inert gas pipe is higher than the large barrel mouth of the steel barrel.

[0068] A further improvement of the present invention is that the inert gas pipe is fixed to the end of the piston rod N through a mounting connecting plate B, the mounting connecting plate B is located below the mounting frame B, and a guide rod A is fixed upward on the top of the mounting connecting plate B, and the guide rod A passes upward through a guide tube A provided on the mounting frame B.

[0069] A further improvement of the present invention is that the small barrel mouth cover loading device or the large barrel mouth cover loading device and the upper cover device, as well as the rainproof cover loading device and the rainproof cover upper cover device are all connected through a feeding device.

[0070] A further improvement of the present invention is that the feeding device comprises a conveyor belt connected by a driving motor J, the conveyor belt is movably connected to a feeding frame of the feeding device, one end of the feeding frame is fixed to a top frame, and the other end is connected and fixed to a discharge port of a small barrel mouth cover feeding device, a large barrel mouth cover feeding device or a rain cover feeding device; the feeding frame is fixed with a limit baffle at the end of the feeding belt, a push block is provided on the feeding frame at a side of the limit baffle facing the feeding end of the feeding frame along a conveying direction perpendicular to the conveyor belt, the push block is fixedly connected to the end of a piston rod R of a piston R, the piston R is fixed to one side of the feeding frame, the other end of the feeding frame relative to the piston R is provided with a feeding trough corresponding to the position of the push block and connected to the conveyor belt, and the conveyor belt is connected to the barrel cover placement trough through the feeding trough;

[0071] The feeding end of the feeding rack is fixed to the small barrel mouth cover feeding device, the large barrel mouth cover feeding device or the rain cover feeding device through the support plate C, and the discharging end of the feeding rack is fixed to the top frame through the installation connecting plate D;

[0072] The barrel cover placement groove includes two oppositely arranged groove petals, which are fixedly connected to the end of the piston rod Q of the piston Q, and the piston Q is fixed to the bottom frame of the lifting frame B; when the piston rod Q extends out of the piston Q to the maximum stroke, the groove petals move toward each other until they contact each other, and at this time the groove petals form the barrel cover placement groove.

[0073] A further improvement of the present invention is that the feed rack is further provided with a material-push rod at a position between the conveyor belt and the pusher block, the material-push rod is swingably connected to the feed rack through a piston S, the piston S is swingably connected to the feed rack, and the piston rod S end of the piston S is connected to the material-push rod;

[0074] When the piston rod S retracts the piston S to the maximum stroke, the material pusher pushes the barrel cover or rain cover on the conveyor belt at the position of the material pusher rod forward along the conveying direction of the conveyor belt; when the piston rod S extends out of the piston S to the maximum stroke, the material pusher pushes the barrel cover or rain cover on the conveyor belt located on the side of the material pusher rod away from the pushing block back in the direction opposite to the conveying direction of the conveyor belt.

[0075] A further improvement of the present invention is that the feeding rack is symmetrically provided with limiting guide grooves corresponding to the edges of the barrel cover or rain cover on both sides of the top of the conveyor belt.

[0076] A further improvement of the present invention is that the support plate C includes two "L"-shaped support plate units, and strip-shaped through holes are correspondingly provided between the two "L"-shaped support plate units, and the strip-shaped through holes are fixed by fixing bolts.

[0077] A further improvement of the present invention is that the cover device includes a cover removal device movably connected to the top frame for grabbing the barrel cover, and the top of the cover removal device is connected to the rotating shaft of the driving motor I through a transmission device D;

[0078] The driving motor I is fixed to the lifting frame A, and the lifting frame A is fixed to the end of the piston rod O of the piston O;

[0079] The piston O is fixed to the lifting frame B, and the lifting frame B is fixed to the end of the piston rod P of the piston P; the lifting frame A is movably connected in the lifting frame B up and down;

[0080] The piston P is fixed in a "door"-shaped frame, the "door"-shaped frame is fixed to the top of the top frame through the mounting base plate A, and the lifting frame B is movably connected to the "door"-shaped frame up and down;

[0081] The piston rod O extends downwardly from the piston O, and the piston O is fixed in the lifting frame B. The lifting frame A moves up and down along the lifting frame B under the action of the piston O in the lifting frame B;

[0082] The piston rod P extends downwardly to form a piston P, which is fixed to a "door"-shaped frame. The lifting frame B moves up and down along the "door"-shaped frame under the action of the piston P.

[0083] When the piston rod O retracts the piston O upward to the maximum stroke and the piston rod P retracts the piston P upward to the maximum stroke, the cap removing device is located above the barrel cap placement slot; when the piston rod O extends downward from the piston O to the maximum stroke and the piston rod P retracts upward from the piston P to the maximum stroke, the cap removing device is located at the barrel cap placement slot; when the piston rod O retracts the piston O upward to the maximum stroke and the piston rod P extends downward from the piston P to the maximum stroke, the cap removing device is located above the barrel mouth of the steel barrel at the corresponding position on the upper cap conveying device; when the piston rod O extends downward from the piston O to the maximum stroke and the piston rod P extends downward from the piston P to the maximum stroke, the height of the cap removing device is lower than the height of the barrel mouth of the steel barrel at the corresponding position on the upper cap conveying device.

[0084] A further improved solution of the present invention is that an opening is provided in the middle of the bottom frame of the lifting frame B, and the grooves are respectively located on the bottom frames on both sides of the opening;

[0085] When the piston rod Q retracts the piston Q to the maximum stroke, the spacing between the groove petals is greater than the diameter of the capping device.

[0086] A further improvement of the present invention is that a positioning groove matching the barrel cover is provided directly below the barrel cover placement groove corresponding to the lid removal device, and positioning grooves are symmetrically provided on opposite surfaces of the groove petals. When the piston rod Q extends out of the piston Q to the maximum stroke, the positioning grooves are correspondingly spliced ​​to form a positioning groove.

[0087] A further improvement of the present invention is that a guide rod B is fixed inside the lifting frame B and located at the top edge of the lifting frame B, and a matching guide tube B is provided on the top frame of the lifting frame A corresponding to the guide rod B, and the guide rod B extends into the lifting frame A through the guide tube B.

[0088] A further improvement of the present invention is that two side walls in the "door"-shaped frame are symmetrically provided with tracks D extending in the upward and downward directions, and matching sliders A are fixedly provided on the lifting frame B corresponding to the tracks D.

[0089] A further improvement of the present invention is that the mounting connecting plate D is fixed to the top frame through the mounting base plate A, and the upper cover device also includes a steel barrel mouth positioning device B, which is movably connected to the bottom of the mounting connecting plate E and is located directly below the cover removal device. The mounting connecting plate E is movably connected to the bottom of the mounting connecting plate D through the piston T, and the piston T is fixed to the mounting connecting plate D. The end of the piston rod T of the piston T extends downward from the piston T and is fixed to the mounting connecting plate E. The steel barrel mouth positioning device B includes two relatively arranged clamping petals A, and the clamping petals A are respectively fixedly connected to the ends of the piston rod U of the piston U, and the piston U is fixed to the mounting connecting plate E. The steel barrel mouth positioning device B is provided with a barrel mouth positioning groove corresponding to the position directly below the cover removal device, and barrel mouth positioning grooves are symmetrically provided on the opposite surfaces of the clamping petals A. When the clamping petals A extend the piston rod U to the maximum stroke of the piston U, the barrel mouth positioning grooves are correspondingly spliced ​​to form the barrel mouth positioning groove; when the clamping petals A are at the maximum stroke of the piston rod withdrawing from the piston U, the distance between the clamping petals A is greater than the barrel mouth diameter of the steel barrel.

[0090] A further improvement of the present invention is that a guide rod C is fixed to the top of the mounting connecting plate E, and a matching guide tube C is provided on the mounting base plate A corresponding to the guide rod C, and the guide rod C passes through the mounting base plate A upwards through the guide tube C.

[0091] A further improvement of the present invention is that the rain cover upper cover device includes a rain cover removal device and a steel barrel mouth positioning device C movably connected to the bottom of the rain cover upper cover frame, the rain cover removal device is fixed to the end of the piston rod V of the piston V, the piston rod V extends downward from the piston V, the piston V is fixed to the end of the piston rod W of the piston W, the piston rod W extends downward from the piston W, the piston W is fixed to the bottom of the mobile frame, the mobile frame is fixed with a nut pair B, the mobile frame is connected to the transmission screw B rotatably connected to the rain cover upper cover frame through the nut pair B, and the transmission screw B is connected to the transmission screw B rotatably connected to the rain cover upper cover frame through the nut pair B. The driving motor K fixed to the top frame of the rainproof cover provides driving force, and the rainproof cover removing device reciprocates between the discharging end of the conveying device of the rainproof cover feeding device and the steel barrel mouth positioning device C, and the rainproof cover top frame is fixedly connected to the top frame; the steel barrel mouth positioning device C includes two relatively arranged clamping petals B, and the clamping petals B are respectively fixedly connected to the piston rod X end of the piston X, and the piston X is respectively fixed to the mounting connecting plate F, and the mounting connecting plate F is fixed to the piston rod Y end of the piston Y, and the piston rod Y extends downward from the piston Y, and the piston Y is fixed to the top frame through the mounting base plate B.

[0092] A further improvement of the present invention is that the piston W is fixed to the movable frame via a mounting base C.

[0093] A further improvement of the present invention is that the bottom of the top frame of the rainproof cover is fixedly connected to a track E along the horizontal moving direction of the moving frame, and the moving frame is provided with a matching slider B corresponding to the track E.

[0094] A further improved solution of the present invention is that the feed trough is fixed with a limited stopper after passing through the bottom of the trough flap, and a rain cover positioning tray matching the rain cover is provided at the bottom of the feed trough corresponding to the position of the trough flap, and the rain cover positioning tray is fixedly connected to the end of the piston rod Z of the piston Z, the piston rod Z extends upwardly from the piston Z, and the piston Z is fixed to the bottom of the feed trough;

[0095] When the piston rod Z retracts the piston Z to the maximum stroke, the rain cover positioning tray matches the feeding trough; when the piston rod Z extends out of the piston Z to the maximum stroke, the rain cover positioning tray is lifted upward to the height of the rain cover positioning tray where the rain cover is located and matches the height of the rain cover removing device when the piston rod W retracts the piston W to the maximum stroke and the piston rod V extends out of the piston V to the maximum stroke.

[0096] A further improvement of the present invention is that a reinforcing connecting plate is fixedly connected to the lower part of the feeding device corresponding to the rainproof cover upper cover device, one end of the reinforcing connecting plate is fixed to the support plate C, and the other end is fixed to the feeding rack.

[0097] A further improvement of the present invention is that a step is provided on one side edge of the placing platform, and a fence is fixed on the top of the placing platform, at the edge of the placing platform.

[0098] A further improvement of the present invention is that the unloading conveying device includes side frames C arranged in parallel on both sides, and a plurality of conveying rollers C are evenly distributed between and along the side frames C. The conveying rollers C are connected to the side frames C through a transmission device E and rotate synchronously and at the same speed with a driving motor L fixed to the unloading conveying device.

[0099] The beneficial effects of the present invention are:

[0100] First, the cover removal and conveying device of the automatic cover-up production line after steel drum painting of the present invention realizes the complete automation of the cover-up process of steel drums after painting, and the materials can be sold directly after being discharged, which effectively reduces labor costs and improves the automation and assembly line of production.

[0101] Second, the cover removal conveying device of the automatic cover production line after steel drum painting of the present invention, through the function of the feeding conveying device, can not only realize the automatic feeding of the cover production line, but also can simultaneously meet the automatic feeding of two cover production lines, further improve production efficiency and reduce labor intensity.

[0102] Thirdly, the cover removal conveying device of the automatic cover-up production line after the steel drums are painted of the present invention can prevent the steel drums of the loading conveying device from being conveyed too fast and too much, thereby affecting the subsequent production rhythm, through the function of the transition conveying device.

[0103] Fourthly, the cover removal conveying device of the automatic cover-applying production line after the steel drum is painted of the present invention can remove the barrel cover used for painting before the steel drum is covered, thereby facilitating the subsequent barrel cover-applying operation and facilitating the recycling of the removed cover.

[0104] Fifth, the cover removal conveying device of the automatic cover-up production line after the steel drum is painted of the present invention can save the work station of the steel drum, shorten the cover-up time of a single steel drum, and improve the production efficiency of a single steel drum through the function of the cover-up conveying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0105] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0106] Figure 2 It is a three-dimensional enlarged schematic diagram of the positions of the loading conveyor device and the cover removal conveyor device of the present invention.

[0107] Figure 3 It is a three-dimensional enlarged schematic diagram of the positions of the upper cover conveying device and the lower material conveying device of the present invention.

[0108] Figure 4 This is an enlarged schematic diagram of the front view of the upper cover conveying device.

[0109] Figure 5 It is a three-dimensional enlarged schematic diagram of the upper cover device and the feeding device.

[0110] Figure 6 For the cover device and the feeding device Figure 5 A magnified stereoscopic diagram from the opposite viewing direction.

[0111] Figure 7 This is a three-dimensional enlarged schematic diagram of the inert gas injection device.

[0112] Figure 8 It is a three-dimensional enlarged schematic diagram of the rain cover upper cover device.

[0113] Fig. 9 It is an enlarged side view of the rain cover upper cover device. DETAILED DESCRIPTION

[0114] Combination Figure 1 to Figure 9 It can be seen that the cover removal conveying device of the automatic cover-up production line after the steel drum is painted of the present invention includes a loading conveying device 1, a cover removal conveying device 3, a cover-up conveying device 4 and a unloading conveying device 5 in sequence along the conveying direction of the steel drum;

[0115] The loading conveyor 1 conveys the steel barrel to the cover removal conveyor 3;

[0116] The cover removal conveying device 3 comprises a steel barrel rotating device A9 and a cover removal device 6. The steel barrel rotating device A9 rotates the large barrel mouth and the small barrel mouth on the top of the steel barrel to match the cover removal device 6. The cover removal device 6 separates the cover covering the large barrel mouth and the small barrel mouth on the top of the steel barrel from the steel barrel. The cover removal conveying device 3 conveys the steel barrel with the cover removed to the upper cover conveying device 4.

[0117] The upper cover conveying device 4 includes a steel barrel rotating device B13, an air ventilation device 17, an upper cover device 19, an inert gas injection device 20 and a rainproof cover upper cover device 21. The steel barrel rotating device B13 rotates the large barrel mouth and the small barrel mouth on the top of the steel barrel to match the air ventilation device 17, the upper cover device 19, the inert gas injection device 20 and the rainproof cover upper cover device 21. The air ventilation device 17 extends from the large barrel mouth or the small barrel mouth on the top of the steel barrel into the steel barrel to inject air into the steel barrel. The upper cover device 19 first covers the small barrel mouth on the top of the steel barrel, and then the inert gas injection device 20 extends from the large barrel mouth on the top of the steel barrel into the steel barrel to inject inert gas into the steel barrel. The upper cover device 19 covers the large barrel mouth on the top of the steel barrel filled with inert gas, and the rainproof cover upper cover device 21 fixes the rainproof cover on the small barrel mouth. The upper cover conveying device 4 conveys the steel barrel with the upper cover to the unloading conveying device 5.

[0118] A transition conveyor device 2 is also connected between the loading conveyor device 1 and the de-covering conveyor device 3. The transition conveyor device 2 transfers the steel barrels of the loading conveyor device 1 to the de-covering conveyor device 3. A steel barrel limiting device 7 is provided on the transition conveyor device 2. The position of the steel barrel limiting device 7 of the transition conveyor device 2 is connected to the de-covering conveyor device 3 through a barrel transfer rack A8.

[0119] The transition conveying device 2 includes side frames B202 arranged in parallel on both sides, and multiple conveying rollers B201 are evenly distributed between and along the side frames B202. The conveying rollers B201 are connected to the side frames B202 through a transmission device B and rotate synchronously with a driving motor B203 fixed to the transition conveying device 2 at the same speed.

[0120] The steel drum limiting device 7 includes a swing rod A702 symmetrically arranged on the side frames B202 on both sides, the middle part of the swing rod A702 is horizontally swing-connected with the corresponding side frame B202 through a vertical axis A, one end of the swing rod A702 facing the cover removal conveyor 3 is provided with a limiting vertical roller rotatably connected around a vertical axis B, the other end of the swing rod A702 is swing-connected with the end of the piston rod D of the piston D701, the piston D701 is swing-connected with the corresponding side frame B202 through a swing frame 703, and the swing frame 703 is fixed to the side frame B202;

[0121] When the piston rod D extends out of the piston D701, the rocker arm A702 drives the limit rollers to swing toward each other to the maximum stroke, at which time the distance between the limit rollers is smaller than the diameter of the steel barrel; when the piston rod D retracts into the piston D701, the rocker arm A702 drives the limit rollers to swing back to the maximum stroke, at which time the distance between the limit rollers is larger than the diameter of the steel barrel.

[0122] The barrel transfer rack A8 includes a parallel rack A801 ​​fixed between the transition conveyor 2 and the cover removal conveyor 3, and the top of the parallel rack A801 ​​is respectively fixed with a track A802 arranged along the parallel rack A801, and the track A802 is provided with a slide B804 which reciprocates along the track A802, and the slide B804 is fixedly connected to the piston rod E of the piston E803 fixed to the parallel rack A801, and the top of the slide B804 is movably connected to the support plate A through the piston F805, and the piston F805 is fixed to the slide B804, and the piston rod F of the piston F805 is fixed to the support plate A.

[0123] When the piston rod E retracts the piston E803 to the maximum stroke, the support plate A is located below the steel barrel limited by the steel barrel limiting device 7; when the piston rod E extends the piston E803 to the maximum stroke, the support plate A is located at the de-covering conveying device 3; when the piston rod F extends the piston F805 to the maximum stroke, the top surface of the support plate A is higher than the height of the contact part between the steel barrel and the de-covering conveying device 3 and the top of the conveying roller B201; when the piston rod F retracts the piston F805 to the maximum stroke, the top surface of the support plate A is lower than the height of the contact part between the steel barrel and the de-covering conveying device 3 and the top of the conveying roller B201.

[0124] The parallel frame A801 ​​is located between the side frames B202, and the width of the slide B804 and the width of the support plate A are both smaller than the spacing between the side frames B202.

[0125] A plurality of parallel conveying side rollers 206 are provided between the side frame B202 and the support plate A and along the conveying direction of the transition conveying frame 2. The conveying side rollers 206 are rotatably connected to the side frame B202. The top of the conveying side rollers 206 is flush with the top of the conveying roller 201. The conveying side rollers 206 are synchronously and speed-drivenly connected to the conveying roller 201.

[0126] The loading conveyor frame 1 includes side frames A102 arranged in parallel on both sides, and multiple conveying rollers A101 are evenly distributed between and along the side frames A102. The conveying rollers A101 are connected to the side frames A102 through a transmission device A104 and rotate synchronously with a driving motor A103 fixed to the loading conveyor device 1 at the same speed.

[0127] The end of the loading conveyor frame 1 is connected to one side of the starting end of the transition conveyor frame 2, and the loading conveyor frame 1 and the transition conveyor frame 2 are vertically arranged. The side frame B202 of the transition conveyor frame 2 facing the loading conveyor frame 1 is provided with a slot B204 matching the loading conveyor frame 1, and a guide roller 205 that rotates horizontally around a vertical axis C is provided at the top of the side frame B202, located on one side of the slot B204 close to the de-covering conveyor device 3, and the distance between the rim edge of the guide roller 205 and the side frame B202 on the other side and the side frame A102 on the side away from the guide roller 205 are both greater than or equal to the diameter of the steel drum.

[0128] The side frame A102 of the loading conveyor frame 1 close to the cover removal conveyor device 3 is also provided with a slot A105 for connecting to a spare cover production line. A slide A110 which reciprocates along the axial direction of the conveying roller A101 is provided at the bottom of the loading conveyor frame 1 at the position of the slot A105. A plurality of push rods 106 are movably connected up and down on the top of the slide A110. The push rods 106 are located between two adjacent conveying rollers A101. The distance between two adjacent push rods 106 is smaller than the diameter of the steel barrel. The push rods 106 are fixed to the end of the piston rod B of the piston B108. The piston B108 is fixed on the slide A110. The slide A110 is fixedly connected to the piston rod A of the piston A fixed to the loading conveyor frame 1.

[0129] When the piston rod A retracts back to the maximum stroke of the piston A, the push rod 106 is located in the loading conveyor frame 1, at the side frame A102 away from the side where the slot A105 is located. At this time, the distance between the push rod 106 and the slot A105 is greater than or equal to the diameter of the steel barrel; when the piston rod A extends out of the piston A to the maximum stroke, the push rod 106 is located in the loading conveyor frame 1, at the side frame A102 close to the side where the slot A105 is located; when the piston rod B retracts back to the piston B108 to the maximum stroke, the top of the push rod 106 is lower than the top of the conveying roller A101; when the piston rod B extends out of the piston B108 to the maximum stroke, the top of the push rod 106 is higher than the top of the conveying roller A101.

[0130] In the gaps between all two adjacent conveying rollers A101, a guide baffle 107 is provided in the gap within the range of the slot A105 and closest to the transition conveying frame 2. The guide baffle 107 is movably connected up and down by a piston C109. The piston C109 is fixed to the loading conveying frame 1 and is located below the conveying roller A101. The side of the guide baffle 107 facing the slot A105 extends to the side frame A102 on the side where the slot A105 is located.

[0131] The guide baffle 107 is fixed to the end of the piston rod C of the piston C109; when the piston rod C retracts the piston C109 to the maximum stroke, the top of the guide baffle 107 is lower than the top of the conveying roller A101; when the piston rod C extends out of the piston C109 to the maximum stroke, the top of the guide baffle 107 is higher than the top of the conveying roller A101.

[0132] The cover removal conveyor 3 includes two parallel conveyor chains A, both ends of which are respectively connected to the sprocket A301 for transmission. The sprocket A301 is rotatably connected to the cover removal conveyor 3, and the sprocket A301 at one end is coaxially fixedly connected with a transmission wheel B305. The cover removal conveyor 3 is also rotatably connected with a transmission wheel A303 that is transmission-connected to the transmission wheel B305. The transmission wheel A303 is transmission-connected to a driving motor C302 fixed to the cover removal conveyor 3 through a transmission device C. The spacing between the conveyor chains A is smaller than the diameter of the steel barrel, and the conveyor chains A are symmetrically located on both sides of the barrel transfer rack A8.

[0133] A horizontal support rod 304 is fixed to the top of the de-covering conveyor 3, corresponding to the position between the two sprockets A301 of the same conveyor chain A. The horizontal support rod 304 is fixed to the de-covering conveyor 3 through an "L"-shaped vertical rod; the conveyor chain A wound around the upper part of the sprocket A301 is placed on the horizontal support rod 304.

[0134] The cover removal conveying device 3 further comprises a cover removal device 6 disposed between two sprocket wheels A301 and above the conveying chain A, and a steel barrel rotating device A9 disposed on the side of the cover removal device 6 facing the feeding conveying device 1 .

[0135] The cover removal device 6 includes a gantry 601 fixed on the cover removal conveying device 3, the conveying chain A passes through the gantry 601, and magnetic blocks 606 are respectively provided on both sides of the top of the gantry 601. The magnetic blocks 606 move horizontally back and forth along a conveying direction perpendicular to the chain A, and the magnetic blocks 606 move up and down reciprocatingly along the vertical direction. Cover drop pipes 607 are also fixed on both sides of the gantry 601, and a sensor B609 is also provided downward at the rear end of the top of the gantry 601. A sensor C610 matching a steel barrel rotating device A9 is also provided on one side of the front end of the top of the gantry 601. The distance between the sensor C610 and the axis of the steel barrel located at the position of the steel barrel rotating device A9 is greater than the maximum distance between the edge of the small barrel mouth at the top of the steel barrel and the axis of the steel barrel and is less than the maximum distance between the edge of the large barrel mouth at the top of the steel barrel and the axis of the steel barrel; the magnetic blocks 60 6 The range of motion under the action of the corresponding piston E603 passes through the corresponding side of the cover tube 607, the feed port of the cover tube 607 is upward, and the height of the edge of the feed port of the cover tube 607 facing the conveyor chain A is lower than the height of the edge of the feed port on the side facing away from the conveyor chain A. When the magnetic block 606 moves inward to the maximum stroke, the magnetic block 606 is respectively located above the corresponding barrel mouth of the steel barrel; when the magnetic block 606 moves outward to the maximum stroke, the magnetic block 606 is located on the outside of the corresponding cover tube 607; when the magnetic block 606 moves downward to the maximum stroke, the magnetic force of the magnetic block 606 attracts the cover at the corresponding barrel mouth of the steel barrel; when the magnetic block 606 moves upward to the maximum stroke, the height of the bottom of the cover adsorbed by the bottom of the magnetic block 606 is located between the heights of the edges on both sides of the feed port of the cover tube 607.

[0136] The magnetic block 606 on each side is respectively fixed to the end of the piston rod D of the piston D602 on the corresponding side. The piston rod D extends downward from the piston D602. The piston D602 is fixed to the end of the piston rod E of the piston E603 on the corresponding side. The piston D602 drives the magnetic block 606 to move up and down. The piston E603 drives the magnetic block 606 to move horizontally reciprocatingly perpendicular to the conveying direction of the conveying chain A. The pistons E603 are respectively fixed to the top of the gantry 601. The movable range of the magnetic block 606 under the action of the corresponding piston E603 passes through the cover drop tube 607 on the corresponding side.

[0137] A sliding frame 604 is provided on the top of the gantry 601 and is slidably connected laterally along the top of the gantry 601 . The sliding frame 604 is fixed to the end of the piston rod E of the piston E603 , and the piston D602 is fixed to the sliding frame 604 .

[0138] The sliding frame 604 reciprocates along the transverse horizontal slide rail A605 provided on the top of the gantry 601 .

[0139] The lower discharge section 608 of the cover drop tube 607 is inclined from top to bottom in a direction away from the gantry 601, and the bottom of the discharge section 608 is a discharge port.

[0140] The steel barrel rotating device A9 includes a rotating base A904 fixed to the de-covering conveying device 3, and the rotating base A904 is located below the upper half of the conveying chain A. Clamping seats A are respectively provided on the rotating base A904 and corresponding to the outer sides of the conveying chain A. The front and rear ends of the top of each side of the clamping seat A facing the edge of one side of the conveying chain A are respectively provided with clamping rollers A901 connected and horizontally rotated around a vertical axis, and the positions of the clamping rollers A901 on both sides correspond to each other. The clamping rollers A901 of the clamping seat A on one side are provided with driving force by a driving motor D902 fixed to the clamping seat A. The top of the rotating base A904 is located between the conveying chains A and a sensor A905 is provided, and the top of the sensor A905 is lower than the top of the conveying chain A.

[0141] The clamping seat A makes horizontal reciprocating movement perpendicular to the conveying direction of the conveying chain A relative to the rotating base A904 through the piston F, and the piston F is fixed to the rotating base A904; when the clamping seat A moves back to back to the maximum stroke, the distance between the corresponding clamping rollers A901 on both sides is greater than the diameter of the steel barrel; when the clamping seat A moves toward each other to the maximum stroke, the distance between the corresponding clamping rollers A901 on both sides is less than the diameter of the steel barrel.

[0142] A horizontal slide rail B903 is fixed on the rotating base A904 along the moving direction of the clamping seat A, and the clamping seat A reciprocates with the rotating base A904 along the horizontal slide rail B903.

[0143] The de-covering conveying device 3 and the upper cover conveying device 4 are connected through a barrel transfer rack B10, and the barrel transfer rack B10 includes a parallel rack B1001 fixed between the de-covering conveying device 3 and the upper cover conveying device 4, and the top of the parallel rack B1001 is respectively fixed with a track B1002 set along the parallel rack B1001, and the track B1002 is provided with a slide C1004 that reciprocates along the track B1002, and the slide C1004 is fixedly connected to the piston rod G of the piston G1003 fixed to the parallel rack B1001, and the top of the slide C1004 is movably connected to the support plate B through the piston H1005, and the piston H1005 is fixed to the slide C1004, and the piston rod H of the piston H1005 is fixed to the support plate B.

[0144] When the piston rod G retracts the piston G1003 to the maximum stroke, the support plate B is located below the steel barrel at the end of the cover removal conveyor 3; when the piston rod G extends out of the piston G1003 to the maximum stroke, the support plate B is located at the steel barrel rotating device B13 of the upper cover conveyor 4; when the piston rod H extends out of the piston H1005 to the maximum stroke, the top surface of the support plate B is higher than the height of the contact part between the steel barrel and the cover removal conveyor 3 and the height of the contact part between the steel barrel and the upper cover conveyor 4; when the piston rod H retracts the piston H1005 to the maximum stroke, the top surface of the support plate B is lower than the height of the contact part between the steel barrel and the cover removal conveyor 3 and the height of the contact part between the steel barrel and the upper cover conveyor 4.

[0145] The parallel frame B1001 is located between the side frames B202, and the support plate B is located between two parallel conveyor chains A202.

[0146] A further improvement scheme of the present invention is that the upper cover conveying device 4 is movably connected with a steel barrel stepping conveying device 14, and the steel barrel stepping conveying device 14 simultaneously conveys the steel barrel located at the steel barrel rotating device B13, the steel barrel located at the air ventilation device 17, the steel barrel located at the upper cover device 19 and the steel barrel located at the rainproof cover upper cover device 21 to the position of the air ventilation device 17, the position of the upper cover device 19, the position of the rainproof cover upper cover device 21 and the position of the conveying chain B1405 respectively. The conveying chain B1405 is provided with two parallel pieces, which are axially symmetrical about the symmetry axis of the upper cover conveying device 4 and are located between the upper cover conveying device 4 and the discharging conveying device 5. The conveying chain B1405 is wound around the transmission wheel C1406, and the transmission wheel C1406 is rotatably connected to the upper cover conveying device 4. The upper cover conveying device 4 is also provided with a driving motor F1407, and the driving motor F1407 is transmission-connected to the transmission wheel C1406.

[0147] The steel barrel stepping conveying device 14 includes a pair of parallel rotating rods 1404 arranged along the steel barrel conveying direction of the upper cover conveying device 4, and the parallel rotating rods 1404 are slidably connected with two tracks C401 arranged parallel to the steel barrel conveying direction at the top of the upper cover conveying device 4 through a sliding frame 1403. The parallel rotating rods 1404 are rotatably connected with the sliding frame 1403 around the axis of the parallel rotating rods 1404 through a driving motor E1505 fixed to the upper cover conveying device 4. A plurality of groups of limiting protrusions 1401 are evenly distributed on the top of the parallel rotating rods 1404 and along the length direction of the parallel rotating rods 1404. Each group of limiting protrusions 1401 matches the bottom of the steel barrel, and the conveying chain B1405 is located between the tracks C401. The upper cover conveying device 4 is also fixed with a driving motor G1505, and the driving motor G1505 drives the steel barrel stepping conveying device 14 to move along the horizontal slide rail C401.

[0148] The limiting protruding rod 1401 is fixedly connected to the parallel rotating rod 1404 via a strip connecting member 1402 , and the length direction of the strip connecting member 1402 is parallel to the parallel rotating rod 1404 .

[0149] Each group of limiting cams 1401 includes four limiting cams 1401, and two limiting cams 1401 are symmetrically provided on each side of the parallel rotating rod 1404; when the first group of limiting cams 1401 along the conveying direction of the steel drum corresponds to the steel drum rotating device B13, the air ventilation device 17, the upper cover device 19 and the rainproof cover upper cover device 21 also have a corresponding group of limiting cams 1401 respectively; when the first group of limiting cams 1401 along the conveying direction of the steel drum corresponds to the air ventilation device 17, the upper cover device 19, the rainproof cover upper cover device 21 and the discharge conveying device 5 also have a corresponding group of limiting cams 1401 respectively.

[0150] The parallel rotating rod 1404 is composed of multiple rotating rod units connected end to end, the limiting protrusions 1401 are fixedly connected to the rotating rod units respectively, and the two adjacent rotating rod units are connected via a transmission connecting seat 15, and the rotating rod units are rotatably connected to the supporting stand 1502 provided on the top of the connecting seat base 1501, and the transmission connecting seat 15 is slidably connected to the upper cover conveying device 4 via a track C401.

[0151] The limiting protruding rod 1401 is fixedly connected to the rotating rod unit via a strip connecting piece 1402 , and the length direction of the strip connecting piece 1402 is parallel to the rotating rod unit.

[0152] The transmission connecting seat 15 includes a connecting seat base plate 1501 connected to a track C401, and a piston I1509 is fixed on the connecting seat base plate 1501. The end of the piston rod I of the piston I1509 is synchronously connected to the rotating rod unit connected to the transmission connecting seat 15 through a connecting rod transmission mechanism 1503 movably connected to the connecting seat base plate 1501. When the piston rod I extends out of the piston I1509 to the maximum stroke, the rotating rod unit drives the limiting cam 1401 to rotate outward until the limiting cam 1401 and the rotating rod unit are in the same horizontal plane or the cam 1401 is located on the lower side of the rotating rod unit; when the piston rod I retracts the piston I1509 to the maximum stroke, the rotating rod unit drives the limiting cam 1401 to rotate upward to vertical.

[0153] A connecting seat top plate 1508 is fixed above the connecting seat bottom plate 1501 through a supporting frame 1502. The connecting seat top plate 1508 is fixed to the top of the supporting frame 1502. The piston I1509 and the connecting rod transmission mechanism 1503 are respectively located between the connecting seat top plate 1508 and the connecting seat bottom plate 1501. The top surface of the connecting seat top plate 1508 is flush with the top of the rotating rod unit.

[0154] A transmission box 1504 is fixed to the bottom of one of the transmission connecting seats 15, and a nut pair A is rotatably connected inside the transmission box 1504. The nut pair A is transmission-connected to a transmission screw A1506 coaxially fixed to the output shaft of the driving motor G1505, and both ends of the transmission screw A1506 are rotationally connected to the upper cover conveying device 4 through bearing seats.

[0155] A horizontal connecting rod 1507 is fixedly connected between the connecting seat base 1501 near the end of the horizontal rotating rod 1404 and the sliding frame 1403 at the corresponding end.

[0156] Railings 402 are symmetrically fixedly connected to both sides of the top of the upper cover conveying device 4, corresponding to the position from the air ventilation device 17 to the rainproof cover upper cover device 21, along the steel drum conveying direction of the upper cover conveying device 4.

[0157] An adjusting foot support 403 is also provided at the bottom of the supporting legs of the upper cover conveying device 4 .

[0158] The steel drum rotating device B13 includes a rotating base B1303 symmetrically fixed to the upper cover conveying device 4 and located on both sides of the horizontal slide rail C401. A clamping seat B is provided on the rotating base B1303 corresponding to the outer side of the steel drum stepping conveying device 14. The front and rear ends of the top of each side of the clamping seat B facing the edge of one side of the steel drum stepping conveying device 14 are respectively provided with clamping rollers B1301 connected and horizontally rotated around a vertical axis. The positions of the clamping rollers B1301 on both sides correspond to each other, and the clamping rollers B1301 of the clamping seat B on one side are provided with driving force by a driving motor H1302 fixed to the clamping seat B.

[0159] The clamping seat B makes horizontal reciprocating movement perpendicular to the conveying direction of the steel barrel relative to the rotating base B1303 through the piston J1304, and the piston J1304 is fixed to the rotating base B1303; when the clamping seat B moves back to back to the maximum stroke, the distance between the corresponding clamping rollers B1301 on both sides is greater than the diameter of the steel barrel; when the clamping seat B moves toward each other to the maximum stroke, the distance between the corresponding clamping wheels B1301 on both sides is less than the diameter of the steel barrel.

[0160] A horizontal slide rail D1305 is fixed on the rotating base B1303 along the moving direction of the clamping seat B, and the clamping seat B reciprocates with the rotating base B1303 along the horizontal slide rail D1305.

[0161] The air ventilation device 17, the upper cover device 19, and the rainproof cover upper cover device 21 are all arranged on the top of the top frame 11. The supporting legs of the top frame 11 are symmetrically arranged on both sides of the upper cover conveying device 4. The top of the top frame 11 is also provided with a sensor D12 and a steel barrel mouth positioning device A16 matching the steel barrel rotating device B13. Two air ventilation devices 17 are arranged in sequence along the steel barrel conveying direction on the upper cover conveying device 4, and two upper cover devices 19 are arranged in sequence along the steel barrel conveying direction on the upper cover conveying device; one side of the top frame 11 is also provided with a placing table 22, and a small barrel mouth cover loading device 25 and a large barrel mouth cover loading device 26 corresponding to the upper cover device 19, as well as a rainproof cover loading device 27 corresponding to the rainproof cover upper cover device 21 are fixed on the placing table 22.

[0162] The sensor D12 is matched with the steel drum rotating device B13, and the sensor D12 is located on the side of the steel drum rotating device B13 facing the cover removal conveying device 3;

[0163] The steel barrel mouth positioning device A16 matches the previous air ventilation device 17, and the steel barrel mouth positioning device A16 corresponds to the steel barrel located at the position of the previous air ventilation device 17; and at this time, the previous air ventilation device 17 corresponds to the small barrel mouth of the steel barrel at its position;

[0164] The rear air exchange device 17 matches the front upper cover device 19, and the rear air exchange device 17 corresponds to the steel barrel located at the position of the front upper cover device 19; the rear air exchange device 17 corresponds to the large barrel opening of the steel barrel at the position, and at this time, the front upper cover device 19 corresponds to the small barrel opening of the steel barrel at the position;

[0165] The inert gas injection device 20 corresponds to the large barrel opening of the steel barrel at the location;

[0166] The latter upper cover device 19 matches with the rain cover upper cover device 21, and the latter upper cover device 19 corresponds to the large barrel opening of the steel barrel at the location, and at this time, the rain cover upper cover device 21 corresponds to the small barrel opening of the steel barrel at the location.

[0167] The sensor D12 is fixed to the end of the piston rod K of the piston K1202 by installing the connecting plate A1201, the piston rod K extends downward from the piston K1202, the piston K1202 is fixed to the top frame 11, and the distance between the sensor D12 and the steel barrel axis at the position of the steel barrel rotating device B13 is greater than the maximum distance between the edge of the small barrel mouth at the top of the steel barrel and the steel barrel axis and is less than the maximum distance between the edge of the large barrel mouth at the top of the steel barrel and the steel barrel axis;

[0168] When the piston rod K extends out of the piston K1202 to the maximum stroke, the sensor D12 works; when the piston rod K retracts back to the piston K1202 to the maximum stroke, the sensor D12 stops working.

[0169] The piston K1202 is fixed to a mounting plate 1204 fixed to the top frame 11 through an adjusting transverse plate 1203 .

[0170] The steel barrel mouth positioning device A16 comprises two sets of clamps 1601 movably connected between the top frame 11 and the upper cover conveying device 4, which are matched with the outer wall of the large barrel mouth and the outer wall of the small barrel mouth on the top of the steel barrel respectively. The clamps 1601 are respectively fixedly connected to the end of the piston rod L of the piston L1602. The piston L1602 is fixed to the top frame 11, and the piston rod L extends downward from the piston L1602.

[0171] When the piston rod L extends out of the piston L1602 to the maximum stroke, the height of the clamp 1601 matches the height of the mouth of the steel barrel. When the piston rod L retracts the piston L1602 to the maximum stroke, the height of the clamp 1601 is higher than the top of the mouth of the steel barrel.

[0172] The air exchange device 17 includes a compressed air pipe fixed to the end of a piston rod M, the piston rod M extends downwardly to a piston M1701, and the piston M1701 is fixed to the top frame 11 through a mounting bracket A;

[0173] When the piston rod M extends downward from the piston M1701 to the maximum stroke, the bottom of the compressed air pipe extends into the steel barrel from the barrel mouth of the steel barrel, and the compressed air intake device connected to the compressed air pipe takes in air; when the piston rod M retracts upward from the piston M1701 to the maximum stroke, the compressed air intake device connected to the compressed air pipe stops taking in air, and the bottom end of the compressed air pipe is higher than the barrel mouth of the steel barrel.

[0174] The inert gas injection device 20 includes an inert gas pipe 2001 fixed to the end of a piston rod N, the piston rod N extends downwardly to a piston N2002, and the piston N2002 is fixed to the top frame 11 through a mounting frame B2004;

[0175] When the piston rod N extends downward from the piston N2002 to the maximum stroke, the bottom of the inert gas pipe 2001 extends into the steel barrel from the large barrel mouth of the steel barrel, and the inert gas intake device connected to the inert gas pipe 2001 takes in air; when the piston rod N retracts upward from the piston N2002 to the maximum stroke, the inert gas intake device connected to the inert gas pipe 2001 stops taking in air, and the bottom end of the inert gas pipe 2001 is higher than the large barrel mouth of the steel barrel.

[0176] The inert gas pipe 2001 is fixed to the end of the piston rod N through a mounting connecting plate B2003. The mounting connecting plate B2003 is located below the mounting frame B2004, and a guide rod A2005 is fixed upward on the top of the mounting connecting plate B2003. The guide rod A2005 passes upward through a guide tube A provided on the mounting frame B2004.

[0177] The small barrel mouth cover feeding device 25 or the large barrel mouth cover feeding device 26 and the upper cover device 19 , as well as the rain cover feeding device 27 and the rain cover upper cover device 21 are all connected via a feeding device 18 .

[0178] The feeding device 18 includes a conveyor belt 1801 connected by a driving motor J1802, and the conveyor belt 1801 is movably connected to a feeding frame of the feeding device 18. One end of the feeding frame is fixed to the top frame 11, and the other end is connected and fixed to the discharge port of the small barrel mouth cover feeding device 25, the large barrel mouth cover feeding device 26 or the rain cover feeding device 27; the feeding frame is located at the end of the feeding belt 1801 and fixed with a limit baffle 1803. A pushing block 1805 is provided on one side of the feeding end of the feeding rack along the conveying direction perpendicular to the conveying belt 1801. The pushing block 1805 is fixedly connected to the end of the piston rod R of the piston R1806. The piston R1806 is fixed to one side of the feeding rack. A feeding trough 1804 matching and communicating with the conveying belt 1801 is provided at the other end of the feeding rack relative to the piston R1806 and corresponding to the position of the pushing block 1805. The conveying belt 1801 is connected to the barrel cover placement groove through the feeding trough 1804.

[0179] The feeding end of the feeding rack is fixed to the small barrel mouth cover loading device 25, the large barrel mouth cover loading device 26 or the rain cover loading device 27 through the support plate C1810, and the discharging end of the feeding rack is fixed to the top frame 11 through the installation connecting plate D;

[0180] The barrel cover placement groove includes two oppositely arranged groove flaps 1812, and the groove flaps 1812 are fixedly connected to the end of the piston rod Q of the piston Q1813, and the piston Q1813 is fixed to the bottom frame of the lifting frame B1910; when the piston rod Q extends out of the piston Q1813 to the maximum stroke, the groove flaps 1812 move toward each other until they contact each other, and at this time the groove flaps 1812 form the barrel cover placement groove.

[0181] The feeding rack is located between the conveyor belt 1801 and the pushing block 1805 and is further provided with a material removing rod 1807, the material removing rod 1807 is swingably connected to the feeding rack through a piston S1808, the piston S1808 is swingably connected to the feeding rack, and the piston rod S end of the piston S1808 is connected to the material removing rod 1807;

[0182] When the piston rod S retracts the piston S1807 to the maximum stroke, the material pusher rod 1807 pushes the barrel cover or rain cover on the conveyor belt 1801 at the position of the material pusher rod 1807 forward along the conveying direction of the conveyor belt 1801; when the piston rod S extends out of the piston S1807 to the maximum stroke, the material pusher rod 1807 pushes the barrel cover or rain cover on the conveyor belt 1801 at the side of the material pusher rod 1807 facing away from the pushing block 1805 in the opposite direction of the conveying direction of the conveyor belt 1801.

[0183] The feeding rack is located on both sides of the top of the conveyor belt 1801 and is symmetrically provided with limiting guide grooves 1809 corresponding to the edges of the barrel cover or rain cover.

[0184] The support plate C1810 includes two "L"-shaped support plate units, and a strip-shaped through hole is correspondingly provided between the two "L"-shaped support plate units, and the strip-shaped through hole is fixed by fixing bolts.

[0185] The cover device 19 includes a cover removal device 1901 movably connected to the top frame 11 for grabbing the barrel cover, and the top of the cover removal device 1901 is connected to the rotating shaft of the driving motor I1902 through a transmission device D;

[0186] The driving motor I1902 is fixed to the lifting frame A1904, and the lifting frame A1904 is fixed to the end of the piston rod O of the piston O1903;

[0187] The piston O1903 is fixed to the lifting frame B1910, and the lifting frame B1910 is fixed to the end of the piston rod P of the piston P1911; the lifting frame A1904 is movably connected up and down in the lifting frame B1910;

[0188] The piston P1911 is fixed in a "door"-shaped frame 1917, and the "door"-shaped frame 1917 is fixed to the top of the top frame 11 through a mounting base plate A1916, and the lifting frame B1910 is movably connected up and down in the "door"-shaped frame 1917;

[0189] The piston rod O extends downwardly out of the piston O1903, and the piston O1903 is fixed in the lifting frame B1910. The lifting frame A1904 moves up and down along the lifting frame B1910 under the action of the piston O1903 in the lifting frame B1910;

[0190] The piston rod P extends downwardly to form a piston P1911, and the piston P1911 is fixed to a "door"-shaped frame 1917. The lifting frame B1910 moves up and down along the "door"-shaped frame 1917 under the action of the piston P1911.

[0191] When the piston rod O retracts the piston O1903 upward to the maximum stroke and the piston rod P retracts the piston P1911 upward to the maximum stroke, the cap removing device 1901 is located above the barrel cap placement slot; when the piston rod O extends downward from the piston O to the maximum stroke and the piston rod P retracts upward from the piston P1911 to the maximum stroke, the cap removing device 1901 is located at the barrel cap placement slot; when the piston rod O retracts the piston O1903 upward to the maximum stroke and the piston rod P extends downward from the piston P1911 to the maximum stroke, the cap removing device 1901 is located above the barrel mouth of the steel barrel at the corresponding position on the upper cap conveying device; when the piston rod O extends downward from the piston O1903 to the maximum stroke and the piston rod P extends downward from the piston P1911 to the maximum stroke, the height of the cap removing device 1901 is lower than the height of the barrel mouth of the steel barrel at the corresponding position on the upper cap conveying device.

[0192] An opening is provided in the middle of the bottom frame of the lifting frame B1910, and the groove petals 1812 are respectively located on the bottom frame on both sides of the opening;

[0193] When the piston rod Q retracts the piston Q1813 to the maximum stroke, the distance between the groove petals 1812 is greater than the diameter of the cap removal device 1901.

[0194] The barrel cover placement groove is provided with a positioning groove 1814 matching the barrel cover just below the cover removal device 1901, and positioning grooves are symmetrically provided on the opposite surfaces of the groove flap 1812. When the groove flap 1812 extends the piston Q1813 to the maximum stroke when the piston rod Q extends, the positioning grooves are correspondingly spliced ​​to form the positioning groove 1814.

[0195] A guide rod B1912 is fixed inside the lifting frame B1910 and at the top edge of the lifting frame B1910. A matching guide tube B is provided on the top frame of the lifting frame A1904 corresponding to the guide rod B1912. The guide rod B1912 passes through the guide tube B and extends into the lifting frame A1904.

[0196] The two side walls within the "door"-shaped frame 1917 are symmetrically provided with rails D1914 extending in the upward and downward directions, and the lifting frame B1910 is respectively fixed with matching sliders A1915 corresponding to the rails D1914.

[0197] The mounting connecting plate D is fixed to the top frame 11 through the mounting base plate A1916, and the upper cover device 19 also includes a steel barrel mouth positioning device B, which is movably connected to the bottom of the mounting connecting plate E1905 and is located directly below the cover removal device 1901. The mounting connecting plate E1905 is movably connected to the bottom of the mounting connecting plate D through the piston T1906, and the piston T1906 is fixed to the mounting connecting plate D. The end of the piston rod T of the piston T1906 extends downward from the piston T1906 and is fixed to the mounting connecting plate E1905. The steel barrel mouth positioning device B includes two relatively arranged clamping flaps A1907, and the clamping flaps The petals A1907 are respectively fixedly connected to the end of the piston rod U of the piston U1908, and the piston U1908 is fixed to the mounting connecting plate E1905. The steel barrel mouth positioning device B is correspondingly provided with a barrel mouth positioning groove 1909 directly below the cover removal device 1901, and the opposite surfaces of the clamping petals A1907 are symmetrically provided with barrel mouth positioning grooves. When the clamping petals A1907 extend the piston U1908 to the maximum stroke when the piston rod U extends out, the barrel mouth positioning grooves are correspondingly spliced ​​to form the barrel mouth positioning groove 1909; when the clamping petals A1907 withdraw the piston U1908 to the maximum stroke when the piston rod withdraws from the piston U1908, the distance between the clamping petals A1907 is greater than the barrel mouth diameter of the steel barrel.

[0198] A further improvement of the present invention is that a guide rod C1913 is fixed to the top of the mounting connecting plate E1905, and the mounting base plate A1916 is provided with a matching guide tube C corresponding to the guide rod C1913, and the guide rod C1913 passes upward through the mounting base plate A1916 through the guide tube C.

[0199] The rain cover upper cover device 21 includes a rain cover removal device 2101 and a steel drum mouth positioning device C which are movably connected to the bottom of the rain cover upper cover frame 2115, the rain cover removal device 2101 is fixed to the end of the piston rod V of the piston V2103, the piston rod V extends downward from the piston V2103, the piston V2103 is fixed to the end of the piston rod W of the piston W2106, the piston rod W extends downward from the piston W2106, the piston W2106 is fixed to the bottom of the moving frame 2105, the moving frame 2105 is fixed with a nut pair B2112, the moving frame 2105 is transmission-connected to the transmission screw B2110 rotatably connected to the rain cover upper cover frame 2115 through the nut pair B2112, and the transmission screw B2110 is connected to the driving screw B2110 through the nut pair B2112. The driving force is provided by the driving motor K2111 fixed to the top frame 2115 of the rainproof cover, and the rainproof cover removing device 2101 reciprocates between the discharge end of the conveying device 18 of the rainproof cover loading device 27 and the steel barrel mouth positioning device C, and the rainproof cover top frame 2115 is fixedly connected to the top frame 11; the steel barrel mouth positioning device C includes two oppositely arranged clamping flaps B2102, and the clamping flaps B2102 are respectively fixedly connected to the piston rod X end of the piston X2104, and the piston X2104 is respectively fixed to the mounting connecting plate F, and the mounting connecting plate F is fixed to the piston rod Y end of the piston Y2108, and the piston rod Y extends downward from the piston Y2108, and the piston Y2108 is fixed to the top frame 11 through the mounting base plate B2107.

[0200] The piston W2106 is fixed to the movable frame 2105 via a mounting base C2109.

[0201] The bottom of the rainproof cover top frame 2115 is fixedly connected to a track E2114 along the horizontal moving direction of the moving frame 2105, and the moving frame 2105 is provided with a matching slider B2113 corresponding to the track E2114.

[0202] The feed trough 1804 passes through the bottom of the slot flap 1812 and is then fixed with a limited stopper 1815. A rain cover positioning tray matching the rain cover is provided at the bottom of the feed trough 1804 corresponding to the position of the slot flap 1812. The rain cover positioning tray is fixedly connected to the end of the piston rod Z of the piston Z1816. The piston rod Z extends upwardly out of the piston Z1816. The piston Z1816 is fixed to the bottom of the feed trough 1804.

[0203] When the piston rod Z retracts the piston Z1816 to the maximum stroke, the rain cover positioning tray matches the feeding trough 1804; when the piston rod Z extends out of the piston Z1816 to the maximum stroke, the rain cover positioning tray is lifted upward to the height of the rain cover positioning tray, which matches the height of the rain cover removing device 2101 when the piston rod W retracts the piston W2106 to the maximum stroke and the piston rod V extends out of the piston V2103 to the maximum stroke.

[0204] The lower part of the feeding device 18 corresponding to the rainproof cover upper cover device 21 is also fixedly connected with a reinforcing connecting plate 1811, one end of the reinforcing connecting plate 1811 is fixed to the support plate C1810, and the other end is fixed to the feeding rack.

[0205] A step 23 is provided on one side edge of the placement platform 22 , and a fence 24 is fixed on the top of the placement platform 22 , at the edge of the placement platform 22 .

[0206] The unloading conveying device 5 includes side frames C502 arranged in parallel on both sides, and multiple conveying rollers C501 are evenly distributed between and along the side frames C502. The conveying rollers C501 are connected to the side frames C502 through a transmission device E and rotate synchronously with the driving motor L503 fixed to the unloading conveying device 5 at the same speed.

[0207] When the present application is used, the material is loaded through the loading conveyor 1, and can be divided into two automatic capping production lines according to the actual production conditions; then the conveying of the steel barrel is controlled by the transition conveyor 2 according to the production speed of the subsequent automatic capping production line; the steel barrel can be first rotated by the cover removal conveyor 3 until the direction of the barrel mouth connection line of the steel barrel is perpendicular to the conveying direction of the steel barrel, and then when the turned steel barrel passes through the cover removal device 6, the cover at the barrel mouth position of the steel barrel can be removed, and the cover can be moved to both sides so that the cover can be collected along the cover drop pipe 607; the steel barrel is first rotated by the steel barrel rotating device B on the capping conveyor 4 until the direction of the barrel mouth connection line of the steel barrel is perpendicular to the conveying direction of the steel barrel The conveying direction of the steel barrel is roughly consistent, and the small barrel mouth faces the side of the discharge conveying device; then when the steel barrel is conveyed forward to the steel barrel mouth positioning device A16, the steel barrel mouth positioning device A16 accurately positions the barrel mouth of the steel barrel so that the barrel mouth connecting direction of the steel barrel is consistent with the conveying direction of the steel barrel, and at the same time, the front air ventilation device 17 extends into the steel barrel from the small barrel mouth and injects compressed air, discharges the gas in the steel barrel from the large barrel mouth, and replaces it with clean compressed air, and then the air ventilation device 17 retreats upward; the steel barrel continues to move forward to the rear air ventilation device 17, and the rear air ventilation device 17 extends into the steel barrel from the large barrel mouth and injects compressed air to clean the gas in the steel barrel. The gas is discharged from the small barrel mouth and further replaced with clean compressed air; then the previous upper cover device installs the small barrel mouth of the steel barrel; at this time, the direction of the compressed air in the steel barrel is the compressed air pipe extending from the large barrel mouth. After the compressed air is blown into the steel barrel, it circulates in the steel barrel along the blowing direction until it is discharged from the large barrel mouth of the steel barrel; the second replacement of clean compressed air is opposite to the first replacement of clean compressed air, and the air flow direction of the clean compressed air in the steel barrel is opposite, so that various parts of the steel barrel are blown at various angles, so that the air replacement effect in the steel barrel is better, and the impurities and waste gases in the steel barrel are blown out as much as possible; when the barrel cover of the small barrel mouth of the steel barrel is completed After the installation is completed, the steel drum continues to be conveyed, and when the steel drum is located at the inert gas injection device 20, the inert gas injection device 20 extends into the steel drum from the large barrel mouth of the steel drum and injects inert gas into the steel drum. After injecting a certain amount of inert gas, the inert gas injection device 20 leaves the steel drum upward; the steel drum continues to be conveyed, and when the steel drum is conveyed to the next upper cover device, the large barrel mouth of the steel drum corresponds to the next upper cover device, and at the same time, the rainproof cover upper cover device corresponds to the small barrel mouth of the steel drum, so that the barrel cover of the large barrel mouth and the rainproof cover of the small barrel mouth are installed at the same time; after completing the installation of the barrel cover of the large barrel mouth and the rainproof cover of the small barrel mouth, the steel drum is conveyed to the discharging conveying device 5 for discharging.

Claims

1. The cover removal and conveying device of the automatic cover production line after steel drum painting is characterized by: The invention comprises two parallel conveyor chains A, the two ends of the conveyor chains A are respectively connected to sprockets A (301) for transmission, the sprockets A (301) are rotatably connected to a cover-removing conveyor device (3), the sprockets A (301) at one end are coaxially fixedly connected to a transmission wheel B (305), the cover-removing conveyor device (3) is also rotatably connected to a transmission wheel A (303) connected to the transmission wheel B (305), the transmission wheel A (303) is connected to a driving motor C (302) fixed to the cover-removing conveyor device (3) through a transmission device C, the spacing between the conveyor chains A is smaller than the diameter of the steel barrel, and the conveyor chains A are symmetrically located on both sides of a barrel transfer frame A (8); The cover removal conveyor device (3) further comprises a cover removal device (6) disposed between the two sprocket wheels A (301) and located above the conveyor chain A, and a steel drum rotating device A (9) disposed on the side of the cover removal device (6) facing the loading conveyor device (1); The cover removal device (6) comprises a gantry (601) fixed on the cover removal conveying device (3), the conveying chain A passes through the gantry (601), magnetic blocks (606) are respectively arranged on both sides of the top of the gantry (601), the magnetic blocks (606) move horizontally and reciprocatingly along a conveying direction perpendicular to the chain A, and the magnetic blocks (606) move reciprocatingly up and down along a vertical direction, and cover drop pipes (607) are fixedly arranged on both sides of the gantry (601), and a sensor B (609) is also arranged downward at the rear end of the top of the gantry (601), and a sensor C (610) matching the steel barrel rotating device A (9) is also arranged on one side of the front end of the top of the gantry (601), and the distance between the sensor C (610) and the steel barrel axis at the position of the steel barrel rotating device A (9) is greater than the maximum distance between the edge of the small barrel mouth at the top of the steel barrel and the steel barrel axis and less than the maximum distance between the edge of the large barrel mouth at the top of the steel barrel and the steel barrel axis; the magnetic blocks ( The movable range of the corresponding piston E (603) passes through the corresponding side of the cover-dropping tube (607), the feed port of the cover-dropping tube (607) is upward, and the height of the edge of the feed port of the cover-dropping tube (607) facing the conveyor chain A is lower than the height of the edge of the feed port facing away from the conveyor chain A. When the magnetic block (606) moves inward to the maximum stroke, the magnetic block (606) is located above the corresponding barrel mouth of the steel barrel; when ... 06) When the magnetic block (606) moves outward to the maximum stroke, the magnetic block (606) is located on the outside of the corresponding cover tube (607); when the magnetic block (606) moves downward to the maximum stroke, the magnetic force of the magnetic block (606) attracts the cover at the corresponding barrel mouth of the steel barrel; when the magnetic block (606) moves upward to the maximum stroke, the height of the bottom of the cover attracted by the bottom of the magnetic block (606) is located between the heights of the edges on both sides of the feed port of the cover tube (607); The magnetic block (606) on each side is respectively fixed to the end of the piston rod D of the piston D (602) on the corresponding side, the piston rod D extends downward from the piston D (602), the piston D (602) is fixed to the end of the piston rod E of the piston E (603) on the corresponding side, the piston D (602) drives the magnetic block (606) to move up and down reciprocatingly, the piston E (603) drives the magnetic block (606) to move horizontally reciprocatingly perpendicular to the conveying direction of the conveying chain A, and the piston E (603) is respectively fixed to the top of the gantry (601).

2. The cover removal and conveying device of the automatic cover-up production line after steel drum painting according to claim 1 is characterized in that: A horizontal support rod (304) is fixed at the top of the cover-removing conveying device (3) and at a position between two sprocket wheels A (301) corresponding to the same conveying chain A. The horizontal support rod (304) is fixed to the cover-removing conveying device (3) via an "L"-shaped vertical rod; the conveying chain A wound around the upper part of the sprocket wheel A (301) is placed on the horizontal support rod (304).

3. The cover removal and conveying device of the automatic cover-up production line after the steel drum is painted as claimed in claim 1, characterized in that: The lower discharge section (608) of the cover drop tube (607) is inclined from top to bottom in a direction away from the gantry (601), and the bottom of the discharge section (608) is a discharge opening.

4. The cover removal and conveying device of the automatic cover-up production line after the steel drum is painted as claimed in claim 1, characterized in that: The steel drum rotating device A (9) includes a rotating base A (904) fixed to the cover removal conveying device (3), the rotating base A (904) is located below the upper half of the conveying chain A, and clamping seats A are respectively provided on the rotating base A (904) and correspondingly located on the outer side of the conveying chain A. The front and rear ends of the top of each side of the clamping seat A facing the edge of one side of the conveying chain A are respectively provided with clamping rollers A (901) connected and horizontally rotated around a vertical axis, and the positions of the clamping rollers A (901) on both sides correspond to each other, and the clamping rollers A (901) of the clamping seat A on one side are provided with driving force by a driving motor D (902) fixed to the clamping seat A. The top of the rotating base A (904) is located between the conveying chains A and a sensor A (905) is provided, and the top of the sensor A (905) is lower than the top of the conveying chain A.

5. The cover removal and conveying device of the automatic cover-up production line after steel drum painting as claimed in claim 4 is characterized in that: The clamping seat A makes horizontal reciprocating movement perpendicular to the conveying direction of the conveying chain A relative to the rotating base A (904) through the piston F, and the piston F is fixed to the rotating base A (904); when the clamping seat A moves back to back to the maximum stroke, the distance between the corresponding clamping rollers A (901) on both sides is greater than the diameter of the steel barrel; when the clamping seat A moves toward each other to the maximum stroke, the distance between the corresponding clamping rollers A (901) on both sides is less than the diameter of the steel barrel.

6. The cover removal and conveying device of the automatic cover-up production line after the steel drum is painted as claimed in claim 1, characterized in that: The cover removal conveying device (3) and the cover upper conveying device (4) are connected via a barrel transfer rack B (10). The barrel transfer rack B (10) comprises a parallel rack B (1001) fixed between the cover removal conveying device (3) and the cover upper conveying device (4). The top of the parallel rack B (1001) is respectively fixed with a track B (1002) arranged along the parallel rack B (1001). The track B (1002) is provided with a slide seat C (1004) which moves back and forth along the track B (1002). The slide seat C (1004) is fixedly connected to a piston rod G of a piston G (1003) fixed to the parallel rack B (1001). The top of the slide seat C (1004) is movably connected to a support plate B via a piston H (1005) in an upward and downward manner. The piston H (1005) is fixed to the slide seat C (1004), and the piston rod H of the piston H (1005) is fixed to the support plate B.

7. The cover removal and conveying device of the automatic cover-up production line after the steel drum is painted as claimed in claim 6, characterized in that: When the piston rod G retracts the piston G (1003) to the maximum stroke, the support plate B is located at the position below the steel barrel at the end of the cover removal conveyor (3); when the piston rod G extends the piston G (1003) to the maximum stroke, the support plate B is located at the position of the steel barrel rotating device B (13) of the cover conveyor (4); when the piston rod H extends the piston H (1005) to the maximum stroke, the top surface of the support plate B is higher than the height of the contact part between the steel barrel and the cover removal conveyor (3) and the height of the contact part between the steel barrel and the cover conveyor (4); when the piston rod H retracts the piston H (1005) to the maximum stroke, the top surface of the support plate B is lower than the height of the contact part between the steel barrel and the cover removal conveyor (3) and the height of the contact part between the steel barrel and the cover conveyor (4).

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