CN115106654A

CN115106654A - Full-automatic welding equipment for steel drum

Info

Publication number: CN115106654A
Application number: CN202211023437.8A
Authority: CN
Inventors: 贝国平
Original assignee: Suzhou Best Packaging Technology Co ltd
Current assignee: Suzhou Best Packaging Technology Co ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2022-09-27
Anticipated expiration: 2042-08-25
Also published as: WO2024040994A1; CN115106654B

Abstract

The invention relates to the technical field of barrel welding equipment, in particular to full-automatic steel barrel welding equipment; the invention comprises a welding mechanism and a coil stock with a first end to be welded and a second end to be welded, wherein the welding mechanism comprises a positioning mechanism, and the positioning mechanism comprises: the base and the pressure plate assembly form a space for accommodating the first end to be welded and the second end to be welded, and the first end to be welded and the second end to be welded are correspondingly provided with a first station, a second station and a third station under different working states of the pressure plate assembly; the holding mechanism is attached to the coil stock and triggers the first end to be welded and the second end to be welded to move relatively; the pressing plate assembly comprises a first pressing part and a second pressing part, and the first pressing part and the second pressing part respectively correspond to a first end to be welded and a second end to be welded; the steel drum aligning device has the advantages of higher aligning precision, higher production efficiency and more simplified structure, and improves the overall product quality of the steel drum.

Description

Full-automatic welding equipment for steel drum

Technical Field

The invention relates to the technical field of barrel welding equipment, in particular to full-automatic steel barrel welding equipment.

Background

In the metal barrel industry, a barrel body is generally made of a thin steel plate, in order to ensure that the surface of the steel plate is not corroded, spraying is usually carried out on the inner surface and the outer surface of the barrel body, and the steel barrel needs to be cleaned, phosphorized, dried and the like before spraying; about 142g of paint is sprayed on each steel barrel according to the amount of 1Kg of paint sprayed on 7 steel barrels, wherein about 20% of the paint is coated with epoxy phenolic aldehyde inside, and 60% of epoxy phenolic aldehyde volatilizes in the heating and baking process, so that the environment is seriously affected, and the emission is seriously overproof; meanwhile, the paint spraying cost is too high, and generally comprises paint cost, electric cost, natural gas cost and the like; therefore, in order to solve the problems of environmental protection and production cost, a film-coated barrel is available in the market, namely, a metal barrel is attached with films on the inner surface and the outer surface for surface treatment.

The welding part in the existing production of the film-coated barrel is mostly a traditional welding method, and the production process of the film-coated barrel is as follows: firstly, attaching the inner surface and the outer surface of a flat metal plate with film coating layers, then rubbing or milling the two end parts of the metal plate to destroy the film coating layers attached to the two end parts, finally rolling, welding the two end parts after rubbing or milling, and repairing films at welding seams. In recent years, laser welding has been widely used, and has significant advantages of low heat input, high welding speed, small heat affected zone, small thermal deformation and the like, but few laser welding machines special for welding metal barrels are available in the market at present.

In the prior art, a patent document with application number CN202210168354.1 (hereinafter referred to as a publication document) discloses a feeding, transferring, welding and blanking device for welding a barrel plate, wherein in the publication, "a positioning mechanism in a welding mechanism comprises a supporting part, a holding mechanism, a height alignment mechanism and a thickness alignment mechanism; the clamping mechanism comprises a first clamping mechanism and a second clamping mechanism, and the first clamping mechanism and the second clamping mechanism respectively comprise a first arc-shaped clamping piece, a second arc-shaped clamping piece, a first clamping piece driving piece and a second clamping piece driving piece which drive the first arc-shaped clamping piece and the second arc-shaped clamping piece; the height alignment mechanism comprises a baffle and a baffle driving piece for driving the baffle to lift; the thickness alignment mechanism comprises a positioning seat assembly, a positioning pressure plate assembly and a fixed pressure plate assembly, wherein the positioning seat assembly comprises a movable seat module which performs lifting action and a fixed seat which is fixedly arranged; the positioning pressing plate assembly comprises a first positioning pressing plate driving module and a second positioning pressing plate driving module, the first positioning pressing plate driving module comprises a first positioning pressing plate and a first positioning pressing plate driving piece, and the second positioning pressing plate driving module comprises a second positioning pressing plate and a second positioning pressing plate driving piece; the fixed pressing plate assembly comprises a plurality of fixed pressing plates and a plurality of fixed pressing plate driving parts, and the positioning process before welding in the publication is limited to the complex structure of the positioning mechanism, so that the positioning steps before welding are more in action, the whole positioning process is not simple and efficient, and the production efficiency of the film coating barrel is greatly influenced; meanwhile, how to improve the production efficiency of the film-coated barrel in an all-round way and how to improve the product quality of the film-coated barrel is also an urgent problem to be solved.

Disclosure of Invention

The invention aims to: the full-automatic welding equipment for the steel barrel is provided, and aims to solve the problems that in the prior art, the whole positioning process in the production process of the film-coated barrel is not simple and efficient enough, and the production efficiency of the film-coated barrel is greatly influenced; the problem of how to improve the production efficiency of tectorial membrane bucket and how to improve the product quality of tectorial membrane bucket is solved simultaneously.

The technical scheme of the invention is as follows: the utility model provides a full-automatic welding equipment of steel drum, includes welding mechanism, has the first coil stock that waits to weld end and second and wait to weld the end, welding mechanism includes positioning mechanism, positioning mechanism includes:

the base and the pressure plate assembly form a space for accommodating the first end to be welded and the second end to be welded, and the first end to be welded and the second end to be welded are correspondingly provided with a first station, a second station and a third station under different working states of the pressure plate assembly;

the holding mechanism is attached to the coil stock and triggers the first end to be welded and the second end to be welded to move relatively;

the pressure plate assembly comprises a first pressing part and a second pressing part, and the first pressing part and the second pressing part respectively correspond to a first end to be welded and a second end to be welded;

under the non-working state of the first pressing part and the second pressing part, the first end to be welded and the second end to be welded are positioned at a first station under the action of the holding mechanism;

the first pressing part and the second pressing part execute actions with different strokes, wherein one side of the large-stroke end presses against the corresponding second end to be welded to the attaching base, and one side of the small-stroke end has a reserved gap for the movement of the corresponding first end to be welded, so that the first end to be welded and the second end to be welded are positioned at a second station;

the first pressing portion and the second pressing portion simultaneously press the corresponding first end to be welded and the second end to be welded to the fitting base, and the first end to be welded and the second end to be welded are located at a third station.

Preferably, the positioning mechanism further comprises a positioning baffle, and the positioning baffle can enter or separate from the position between the first end to be welded and the second end to be welded, so that the first end to be welded and the second end to be welded are not overlapped; the reserved gap in the second station enables the distance between the bottom surface of the end edge of the first end to be welded and the top surface of the base to be smaller than the thickness of the coiled material.

Preferably, the base is provided with an accommodating cavity, a notch is formed in the upper end face of the base along the axial direction of the coil stock, and the notch is communicated with the accommodating cavity;

the positioning baffle is arranged in the accommodating cavity in a segmented manner and structurally comprises a plurality of positioning baffle units which are sequentially arranged and can lift in the notch; when the coil stock is conveyed into the welding mechanism, the positioning baffle plate units sequentially ascend along the conveying direction of the coil stock.

Preferably, the device also comprises a three-core rounding mechanism and a transferring mechanism;

the three-core rounding mechanism comprises a three-core rounding component and a guide support mechanism which is arranged right below the three-core rounding component and guides and supports the curled roll materials after passing through the three-core rounding mechanism; the guide supporting mechanism comprises an arc guide plate group which is arranged in sections and a plurality of first supporting rollers which are arranged below the coil stock;

transport mechanism includes that the coil stock propelling movement on the supporting mechanism that will lead to the welding mechanism, pushes away the welded ladle body on the welding mechanism from welding mechanism's propelling movement subassembly simultaneously.

Preferably, the positioning mechanism further comprises a first height alignment mechanism which is arranged on the front side in the moving direction of the coil stock in a blocking manner and enables the first end to be welded and the second end to be welded to be aligned in the axial direction of the coil stock, and a second height alignment mechanism which is arranged on the rear side in the moving direction of the coil stock and enables the first end to be welded and the second end to be welded to be aligned in the axial direction of the coil stock;

the positioning mechanism further comprises a supporting part, and the supporting part is used for supporting a coil stock;

the welding structure further comprises a welding assembly for welding the coil materials positioned on the positioning mechanism into the barrel.

Preferably, the first height alignment mechanism comprises a baffle and a baffle driving part for driving the baffle to lift; the second height alignment mechanism comprises a spring positioning pin and a spring positioning pin driving piece for driving the spring positioning pin to integrally move along the conveying direction of the coil stock; and a lower pressing wheel is arranged above the second height alignment mechanism and is always pressed downwards.

Preferably, a material conveying clamping rod is arranged at a material inlet of the three-core rounding assembly; the material conveying clamping roller comprises an upper driving clamping roller vertically arranged from top to bottom, a lower driven clamping roller in transmission connection with the upper driving clamping roller through a gear, and an upper driving clamping roller driving piece for driving the upper driving clamping roller to rotate.

Preferably, the supporting part is a plurality of second supporting rollers arranged along the axial direction of the coil stock, and the plurality of first supporting rollers of the guiding and supporting mechanism and the plurality of second supporting rollers of the positioning mechanism are linearly arranged; the propelling movement subassembly is for setting up the chain conveyer belt subassembly on a plurality of first supporting rollers and a plurality of second supporting rollers both sides limit, chain conveyer belt subassembly includes the gear, overlaps the chain of establishing on the gear, the rotatory gear drive spare of drive gear.

Preferably, the coil stock is a barrel plate before being fed into the three-core rounding mechanism, and when the barrel plate enters the three-core rounding mechanism, one end part of the barrel plate entering first is a head end, and the other end part of the barrel plate entering later is a tail end; the guide plate group comprises a first guide plate arranged on the side edge where the head end of the barrel plate is located after the rounding is finished and a second guide plate group arranged on the side edge where the tail end of the barrel plate is located after the rounding is finished; the second guide plate group comprises a second guide plate and a guide plate driving part for driving the second guide plate to swing along the radial direction of the coil material by taking the lower end of the second guide plate as a base point; in the initial state, the second guide plate is wholly inclined outwards along the radial direction of the coil material by taking the lower end of the second guide plate as a base point.

Preferably, the chain is provided with claw push plates which are used for pushing the coil stock and pushing the welded barrel body and are distributed at equal intervals.

Preferably, the base comprises a left base and a right base, and the left base and the right base are arranged in a left-right symmetrical manner; the top surface of the left base and the adjacent part of the top surface of the right base are both flat surfaces, and the top surface of the left base and the top surface of the right base except the flat surfaces are both arc surfaces; the notch sets up in the juncture of two planishing faces, the middle part of notch along its length direction and the tip intercommunication of its one end of notch have gas blowing device.

Preferably, the welding assembly comprises a plurality of laser welding heads arranged above the coil stock and a laser welding head driving piece for driving the laser welding heads to move;

the number of the laser welding heads is three, and the laser welding head driving part comprises three laser welding head cylinders connected with the three laser welding heads and an electric cylinder driving the three laser welding head cylinders to reciprocate in the same direction along a gap between the first end to be welded and the second end to be welded.

Compared with the prior art, the invention has the advantages that:

(1) the positioning mechanism comprises a supporting part, a base, a pressing plate assembly, a holding mechanism, a positioning baffle, a first height alignment mechanism and a second height alignment mechanism, wherein the first height alignment mechanism is arranged on the front side of the moving direction of a coiled material in a blocking mode and enables a first end to be welded and a second end to be welded to be axially aligned in the coiled material; the positioning mechanism is simpler in structure, omits a spreading assembly, a first positioning pressing plate assembly, a second positioning pressing plate assembly, an oblique driving piece and a movable seat module in the publication, saves a large amount of equipment cost, reduces the positioning step before welding by a half, and greatly improves the positioning efficiency; through calculation, compared with the positioning mechanism in the published document, the positioning mechanism can save half of the positioning time, and greatly improves the production efficiency of the film covering barrel.

(2) According to the invention, by arranging the first station, the second station and the third station, the first end to be welded and the second end to be welded of the coil stock can be positioned before welding by the three stations; at a second station, the first pressing part and the second pressing part execute actions with different strokes, wherein one side of the large-stroke end is pressed against the corresponding second end to be welded to the joint base, a reserved gap for the movement of the corresponding first end to be welded is formed in one side of the small-stroke end, and the gap enables the distance between the bottom surface at the end edge of the first end to be welded and the top surface of the base to be smaller than the plate thickness of a coiled material; when can let a plurality of location separation blade units break away from between the first end of treating welding and the second end of treating welding, under the action of clasping mechanism, can make the first end of treating welding and the second end of treating welding butt joint and not overlap for the uplift can not appear in the welding, and the welding seam is more perfect.

(3) According to the invention, through the arrangement of the plurality of positioning baffle units, the first end to be welded and the second end to be welded are not overlapped and are accurately butted in the coil positioning process; meanwhile, a plurality of positioning baffle units are arranged, when the coil stock is conveyed into the welding mechanism, the positioning baffle units sequentially ascend along the conveying direction of the coil stock, so that the welded barrel body is pushed away from the welding mechanism, the coil stock on the guide supporting mechanism can be synchronously pushed onto the welding mechanism, the first end to be welded and the second end to be welded of the coil stock cannot be overlapped in the conveying process, and the feeding efficiency is further improved while the welding effect is ensured; moreover, the plurality of positioning baffle plate units are arranged in the notch of the base in a penetrating manner, so that the space is further saved.

(4) According to the invention, the first height alignment mechanism comprises a baffle and a baffle driving piece for driving the baffle to lift, and the baffle driving piece drives the baffle to lift so as to enable the first end to be welded and the second end to be welded of the coil to be aligned in the height direction (namely the axial direction of the coil); the second height alignment mechanism comprises a spring positioning pin and a spring positioning pin driving piece for driving the spring positioning pin to integrally move along the conveying direction of the coil stock, and the spring positioning pin enables the first end to be welded and the second end to be welded of the coil stock to be aligned in the height direction (namely the axial direction of the coil stock) under the driving of the spring positioning pin driving piece; compared with the prior art that only a height alignment mechanism (equivalent to the first height alignment mechanism in the invention) is arranged in the public document, the second height alignment mechanism and the first height alignment mechanism are matched to realize the accurate alignment of the first end to be welded and the second end to be welded of the coil material in the height direction, the alignment precision is higher, and the overall product quality of the coil material is improved.

(5) According to the invention, the transfer mechanism comprises a pushing assembly which pushes the coil stock on the guide supporting mechanism to the welding mechanism and pushes the welded barrel body on the welding mechanism away from the welding mechanism; the pushing assembly is a chain conveying belt assembly arranged on two side edges of the first supporting rollers and the second supporting rollers, the chain conveying belt assembly comprises a gear, a chain sleeved on the gear, and a gear driving piece for driving the gear to rotate; the chain is provided with claw push plates which are used for pushing the coil stock and pushing the welded barrel body to be distributed at equal intervals; in the prior art publication, the structure that the coil stock on the guide supporting mechanism is pushed to the positioning mechanism of the welding mechanism along a straight line is a "transfer mechanism", the structure that the welded barrel body is pushed away from the positioning mechanism of the welding mechanism is a "blanking mechanism", and the structures of the "transfer mechanism" and the "blanking mechanism" are not described again; in the embodiment, the transfer mechanism replaces a 'transfer mechanism' and a 'blanking mechanism' with relatively complex structures in the publication, and the structure is simplified.

(6) A feeding port of the three-core edge rolling component is provided with a material conveying clamping rod; the material conveying clamping roller comprises an upper driving clamping roller vertically arranged up and down, a lower driven clamping roller in transmission connection with the upper driving clamping roller through a gear, and an upper driving clamping roller driving piece for driving the upper driving clamping roller to rotate; the material conveying clamping roller is used for conveying materials, and the three-core rounding assembly is used for rounding, so that the rounding efficiency is greatly improved.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a schematic structural diagram of a full-automatic steel barrel welding device according to the embodiment;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a schematic structural view of the three-core rounding mechanism according to the present embodiment;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a schematic view of a portion of the feeding rod and the three-core rolling assembly of the present embodiment;

FIG. 6 is a schematic structural diagram of a welding mechanism according to the present embodiment;

FIG. 7 is a front view of FIG. 6;

FIG. 8 is a top view of FIG. 6;

FIG. 9 is a schematic structural view of the positioning baffle and the pressing plate assembly of the present embodiment;

FIG. 10 is a front view of FIG. 9;

11-1 to 11-3 are schematic diagrams illustrating the operation of the first station, the second station and the third station according to the embodiment;

FIG. 12 is a schematic structural view of a transfer mechanism according to the present embodiment;

FIG. 13 is a right side view of FIG. 12;

FIG. 14 is a schematic structural view of a second height alignment mechanism according to the present embodiment;

FIG. 15 is a schematic view of a portion of the second height alignment mechanism;

FIG. 16 is an enlarged view of the structure at B in FIG. 10;

fig. 17 is a schematic structural view of a side end face a of a first end to be welded abutting against a side end face B of a second end to be welded;

fig. 18 is an enlarged schematic view of C in fig. 11-2.

Wherein:

01. the welding device comprises a rack, 02, a V-shaped guide groove, 03, a first end to be welded, 04, a second end to be welded, 05, side end faces A and 06 and a side end face B;

1. a three-core rounding mechanism;

11. three-core edge rolling component 111, upper roll 112, lower roll 113, edge roll 114, adjusting mechanism 1141, connecting plate 1142, edge roll cylinder 1143, fixing plate 1144 and spiral elevator;

12. a feeding clamping rod 121, an upper driving clamping rod 122 and a lower driven clamping rod;

13. the device comprises a guide supporting mechanism 131, a first supporting roller 132, a first guide plate 133, a second guide plate 134, a guide plate cylinder 135 and an adapter plate;

14. a cross beam 15 and a guide guard plate;

2. a transfer mechanism;

21. the chain conveyor belt assembly comprises 211, gears 212, a chain 213, a gear driving piece 214, jaw push plates A and 215 and a jaw push plate B;

3. a welding mechanism;

31. positioning mechanism, 311, left base, 312, right base, 313, clasping mechanism, 3131, first circular arc clasping member, 3132, first clasping member driving member, 3133, second circular arc clasping member, 3134, second clasping member driving member, 314, first height aligning mechanism, 3141, baffle, 3142, baffle driving member, 315, second height aligning mechanism, 3151, spring positioning pin, 3152, spring positioning pin driving member, 316, flat surface, 317, notch, 318, first pressure plate unit, 319, first pressure plate driving member unit, 3110, second pressure plate unit, 3111, second pressure plate driving member unit, 3112, copper block, 3113, positioning baffle plate driving member, 3114, positioning baffle plate unit, 3115, second supporting roller, 3116, lower pressing wheel;

32. welding assembly 321, laser welding head 322 and electric cylinder.

Detailed Description

The present invention will be further described in detail with reference to the following specific examples:

in the description of the invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the invention.

As shown in fig. 1-2, a full-automatic steel drum welding device comprises a three-core rolling mechanism 1, a transfer mechanism 2, a welding mechanism 3, and a coil stock with a first end 03 to be welded and a second end 04 to be welded; the feeding end of the three-core rounding mechanism 1 is a barrel plate conveying mechanism; in this embodiment, the three-core edge rolling mechanism 1, the transfer mechanism 2, and the welding mechanism 3 are all fixed on the frame 01.

Three-core edge rolling mechanism 1

As shown in fig. 3-4, the three-core rounding mechanism 1 includes a three-core rounding assembly 11, and a guiding and supporting mechanism 13 disposed right below the three-core rounding assembly 11 for guiding and supporting the curled material passing through the three-core rounding mechanism 1; the coil stock on the guide supporting mechanism 13 is in a horizontal shape, the first end to be welded 03 and the second end to be welded 04 are positioned at the upper end part of the horizontal coil stock, and the three-core rounding mechanism 1 rolls a flat-plate-shaped barrel plate into a cylinder shape; as shown in fig. 5, the three-core edge rolling assembly 11 includes an upper roller 111, a lower roller 112 in transmission connection with the upper roller 111 through a gear 211, an edge roller 113 in transmission connection with the upper roller 111 through the gear 211, and a roller driving member for driving the upper roller 111 or the lower roller 112 to rotate, the roller driving member being a motor; as shown in fig. 3 and 4, the upper roller 111 and the lower roller 112 are vertically fixed on the cross beam 14 with an i-shaped cross section, two sides of the cross beam 14 are in a groove shape and are used for accommodating two end portions of the rolled barrel plate, and the i-shaped cross beam 14 plays a role in positioning and guiding the barrel plate in the rolling process and when the barrel plate is pushed to the welding mechanism 3 by the transfer mechanism 2; the lower end face of the beam 14 is also provided with a guide guard plate 15 for guiding the curled barrel plate when being curled, in the embodiment, two guide guard plates 15 are arranged, so that the curled barrel plate is prevented from being clamped when being curled; a material conveying clamping rod 12 is arranged at the material inlet of the three-core edge rolling component 11; the feeding clamping rod 12 comprises an upper driving clamping rod 121 vertically arranged up and down, a lower driven clamping rod 122 in transmission connection with the upper driving clamping rod 121 through a gear 211, and an upper driving clamping rod driving member for driving the upper driving clamping rod 121 to rotate, as shown in fig. 5, the roller driving member for driving the upper roller 111 to rotate and the upper driving nip driving member for driving the upper driving nip 121 to rotate are both motors, and the upper roller 111 and the upper driving clamping roller 121 share a motor through a synchronous belt and a synchronous belt pulley, the linear velocity of the upper roller 111 and the upper driving clamping roller 121 is equal when making circular motion, compared with the feeding clamping roller 12 which is not arranged, the three-core edge rolling component 11 bears not only the forward clamping force of the barrel clamping plate but also the edge rolling force of the edge rolling, which affects the efficiency and quality of edge rolling, the material conveying clamping rod 12 is responsible for conveying materials, the three-core edge rolling component 11 is responsible for rolling, and the edge rolling efficiency is greatly improved; the edge roller 113 is arranged on one side of the upper roller 111 and the lower roller 112 positioned on the discharging side, and the position of the edge roller 113 can be adjusted through an adjusting mechanism 114; as shown in fig. 3, the adjusting mechanism 114 includes connecting plates 1141 hinged to both sides of the upper roller 111, and edge roller cylinders 1142 hinged to the connecting plates 1141, the other ends of the edge roller cylinders 1142 are hinged to the frame 01, and the edge rollers 113 are fixed to the two connecting plates 1141; a spiral lifter 1144 is further disposed on a side edge of the adjusting mechanism 114, a fixing plate 1143 is fixed between the two connecting plates 1141, specifically, the spiral lifter 1144 is disposed above the fixing plate 1143, and a bottom end of a screw of the spiral lifter 1144 abuts against the fixing plate 1143; during the use, side roller cylinder 1142 plays the taut, fixed effect with side roller 113, debugs side roller 113's position (adjusting the edge rolling camber promptly) through side roller cylinder 1142, has adjusted the back of edge rolling camber, through spiral elevator 1144 reinforcing side roller 113's steadiness, improves edge rolling precision, and side roller 113 has preflex and edge rolling dual function.

The guide supporting mechanism 13 comprises an arc-shaped guide plate group arranged in sections and a plurality of first supporting rollers 131 arranged below the coil stock, and the positions of the guide plate group and the first supporting rollers 131 are matched with the shapes of the barrel plate in the coiling process and after the coiling process, and jointly form an advancing channel in the barrel plate coiling process.

The coil stock is a barrel plate before being fed into the three-core rounding mechanism 1, and when the barrel plate enters the three-core rounding mechanism 1, one end part of the barrel plate entering first is a head end, and the other end part of the barrel plate entering later is a tail end; the guide plate group comprises a first guide plate 132 arranged on the side where the head end of the barrel plate is located after the rounding is finished and a second guide plate group arranged on the side where the tail end of the barrel plate is located after the rounding is finished; the second guide plate group comprises a second guide plate 133 and a guide plate driving member for driving the second guide plate 133 to swing along the radial direction of the coil material by taking the lower end of the second guide plate 133 as a base point; in the initial state, the second guide plate 133 is entirely inclined outward in the radial direction of the coil stock with the lower end of the second guide plate 133 as a base point; specifically, as shown in fig. 4, in this embodiment, the guide plate driving member is a guide plate cylinder 134 disposed vertically, a lower end of a cylinder body of the guide plate cylinder 134 is fixed on the frame 01, a push rod of the guide plate cylinder 134 extends upward and retracts downward, and a push rod of the guide plate cylinder 134 in an initial state is in a retracted state; the lower end of the second guide plate 133 is fixedly connected with an adapter plate 135, and the other end of the adapter plate 135 is hinged with a push rod of the guide plate cylinder 134; the specific working principle of the second guide plate group is as follows: when the head end of the barrel plate enters the three-core rounding mechanism 1, because the push rod of the guide plate cylinder 134 is in a retraction state and the second guide plate 133 integrally inclines outwards along the radial direction of the rolling material with the lower end of the second guide plate 133 as a base point, under the guiding action of the second guide plate 133, the head end of the barrel plate is in an upwarping shape in the rounding process of the three-core rounding mechanism 1, and the upwarping shape ensures that the head end of the barrel plate cannot be blocked and interfered by the first support rollers 131 or that the head end of the barrel plate cannot be inserted into each gap to influence the rounding; when the rounding is finished, the push rod of the guide plate cylinder 134 extends out, so that the second guide plate 133 swings inwards along the radial direction of the coiled material with the lower end of the second guide plate 133 as a base point, the second guide plate 133 pushes the tail end of the barrel plate into the groove on the right side edge of the cross beam 14, and the second guide plate group can play a fool-proof role.

Transfer mechanism 2

Transport mechanism 2 includes that the coil stock propelling movement on the supporting mechanism 13 that will lead to 3, with welded ladle body on the 3 pushing away from the propelling movement subassembly of welding mechanism 3 simultaneously.

The supporting part of the following positioning mechanism 31 is a plurality of second supporting rollers 3115 arranged along the axial direction of the coil stock; the first supporting rollers 131 of the guiding and supporting mechanism 13 and the second supporting rollers 3115 of the positioning mechanism 31 are linearly disposed (as shown in fig. 3 and 4), in this embodiment, the outermost rings of the first supporting rollers 131 and the second supporting rollers 3115 are made of rubber to protect the barrel plate; the pushing assembly is a chain conveyor belt assembly 21 arranged on two side edges of the first supporting rollers 131 and the second supporting rollers 3115, the chain conveyor belt assembly 21 comprises a gear 211, a chain 212 sleeved on the gear 211, and a gear driving part 213 for driving the gear 211 to rotate, wherein the gear driving part 213 is a motor; the chain 212 is provided with claw push plates which are used for pushing the coil stock and pushing the welded barrel body at equal intervals; in this embodiment, as shown in fig. 4 and 12, the chains 212 are disposed on two sides of the coil and the barrel, four jaw pushing plates are fixed on each chain 212 and are distributed at equal intervals, and the four jaw pushing plates on the two chains 212 are disposed at the same position on the chains 212.

The structure that coil materials on the guiding and supporting mechanism are pushed to the positioning mechanism of the welding mechanism along a straight line in the prior art publication is a transferring mechanism, the structure that the welded barrel body is pushed away from the positioning mechanism of the welding mechanism in the prior art publication is a blanking mechanism, and the structures of the transferring mechanism and the blanking mechanism in the publication are not described again; the transfer mechanism 2 of the embodiment replaces a transfer mechanism and a blanking mechanism with relatively complex structures in the published documents, and the motor drives the air cylinder in the published documents, so that the transportation efficiency is higher, and the structure is simpler.

Welding mechanism 3

As shown in fig. 2, a transition section between the three-core rounding mechanism 1 and the welding mechanism 3 is provided with a V-shaped guide groove 02 for guiding the first end to be welded 03 and the second end to be welded 04.

As shown in fig. 6-10, the welding mechanism 3 includes a positioning mechanism 31, and a welding assembly 32 for welding the coil material positioned on the positioning mechanism 31 into a barrel; the positioning mechanism 31 comprises a supporting portion, a base and pressing plate assembly, a clasping mechanism 313, a positioning baffle, a first height alignment mechanism 314 which is arranged on the front side of the moving direction of the coiled material in a blocking manner and enables a first end to be welded 03 and a second end to be welded 04 to be aligned in the axial direction of the coiled material, and a second height alignment mechanism 315 which is arranged on the rear side of the moving direction of the coiled material and enables the first end to be welded 03 and the second end to be welded 04 to be aligned in the axial direction of the coiled material.

Further, the base and the pressing plate assembly form a space for accommodating the first end to be welded 03 and the second end to be welded 04, and the first end to be welded 03 and the second end to be welded 04 are provided with a first station, a second station and a third station correspondingly under different working states of the pressing plate assembly; the holding mechanism 313 is attached to the coil and triggers the first end to be welded 03 and the second end to be welded 04 to move relatively; the pressing plate assembly comprises a first pressing part and a second pressing part, and the first pressing part and the second pressing part respectively correspond to the first end to be welded 03 and the second end to be welded 04; under the non-working state of the first pressing part and the second pressing part, the first end to be welded 03 and the second end to be welded 04 are positioned at the first station under the action of the holding mechanism 313; the first pressing part and the second pressing part execute actions with different strokes, wherein one side of the large-stroke end presses the corresponding second end to be welded 04 to the joint base, and one side of the small-stroke end has a reserved gap for the movement of the corresponding first end to be welded 03, so that the first end to be welded 03 and the second end to be welded 04 are positioned at a second station; the first pressing portion and the second pressing portion simultaneously press the corresponding first end 03 to be welded and the second end 04 to be welded to the fitting base, so that the first end 03 to be welded and the second end 04 to be welded are located at a third station.

The positioning baffle piece can enter or separate from the position between the first end to be welded 03 and the second end to be welded 04, so that the first end to be welded 03 and the second end to be welded 04 are not overlapped; the clearance in the second station is such that the distance H between the bottom surface at the end edge of the first end to be welded 03 and the top surface of the base is smaller than the sheet thickness of the coil (see fig. 18).

The positioning baffle is arranged in the accommodating cavity in a segmented manner, and the positioning baffle structurally comprises a plurality of positioning baffle units 3113 which are sequentially arranged and can lift in the notch 317; when the coil stock is conveyed into the welding mechanism, the plurality of positioning baffle plate units 3113 sequentially ascend along the conveying direction of the coil stock; the positioning baffle units 3113 are driven by positioning baffle driving units 3114, and in this embodiment, the positioning baffle driving units 3114 are air cylinders.

In this embodiment, the first pressure plate units 318 are pressed down to the top surface of the left base 311 in two segments, the second fixing units are directly pressed down to the top surface of the right base 312, and when the first pressure plate units 318 are pressed down for the first time, the distance H between the bottom surface at the end edge of the first end-to-be-welded 03 and the top surface of the left base 311, which is described below, is smaller than the plate thickness of the coil stock (as shown in fig. 18); in this embodiment, the first end to be welded 03 and the second end to be welded 04 are butt welded, since the positioning mechanism 31 is provided with the plurality of positioning stop sheet units 3113, and in the positioning process, after the plurality of positioning stop sheet units 3113 are lowered, the clasping mechanism 313 performs clasping action for the second time in one clasping stroke, and how to butt the first end to be welded 03 and the second end to be welded 04 without overlapping is a technical problem that needs to be solved by the present inventors; in this embodiment, the first pressure plate units 318 are pressed down in two stages, and the second pressure plate units 3110 are pressed down in one stage and then matched with the left base 311, the right base 312, and the clasping mechanism 313 to solve the problem, which will be described in detail in the following working principle of positioning process before welding.

The clasping mechanisms 313 are arranged on two side edges of the coil stock, each clasping mechanism 313 comprises a first clasping mechanism arranged on the same side with the left base 311 and a second clasping mechanism arranged on the same side with the right base 312, and the first clasping mechanisms and the second clasping mechanisms are arranged in a bilateral symmetry manner; the first clasping mechanism and the second clasping mechanism respectively comprise a first circular arc-shaped clasping piece 3131 and a second circular arc-shaped clasping piece 3133 which are matched with the shape of the coil, and a first clasping piece driving piece 3132 and a second clasping piece driving piece 3134 which drive the first circular arc-shaped clasping piece 3131 and the second circular arc-shaped clasping piece 3133 to move horizontally, wherein the first clasping piece driving piece 3132 and the second clasping piece driving piece 3134 are cylinders; each of the first circular arc-shaped clasping member 3131 and the second circular arc-shaped clasping member 3133 includes a plurality of first columns and a plurality of second columns arranged along the axial direction of the coil stock.

As shown in fig. 16, the base is provided with an accommodating cavity, a notch 317 is formed in the upper end surface of the base along the axial direction of the coil stock, and the notch 317 is communicated with the accommodating cavity; in this embodiment, the base is fixedly disposed right below the first end to be welded 03 and the second end to be welded 04, and includes a left base 311 and a right base 312, and the left base 311 and the right base 312 are disposed in bilateral symmetry; the adjacent parts of the top surface of the left base 311 and the top surface of the right base 312 are both flat surfaces 316, and the top surface of the left base 311 and the top surface of the right base 312 except the flat surfaces 316 are both arc surfaces; the notch 317 is arranged at the junction of the two flat surfaces 316, and the middle part of the notch 317 along the length direction and the end part of one end of the notch 317 are communicated with air blowing devices; in the prior art, a common blowing device is communicated with two ends of a notch 317, then the blowing device blows nitrogen gas from the two ends of the notch 317 to the middle simultaneously to purge welding slag, and the two convective nitrogen gases can cause the welding slag to remain in the notch 317 and cannot be purged completely; in this embodiment, gas blowing device intercommunication is at the middle part of notch 317 along its length direction and the tip of its one end of notch 317, two strands of nitrogen gas blow off towards the one end that notch 317 did not set up gas blowing device wherein, it is very clean that the experiment proves that this setting will blow the welding slag, and simultaneously, gas blowing device blows the oxidation that nitrogen gas can also prevent when welding, has guaranteed the cleanness of welding seam, if the welding seam is by the oxidation when the welding, when mending the membrane to the welding seam in later stage, can influence the adhesive force of membrane, and then influence product quality.

The pressing plate assembly is arranged above the first end to be welded 03 and the second end to be welded 04; the first pressing part and the second pressing part are respectively a first pressing plate and a second pressing plate, the first pressing plate comprises a plurality of first pressing plate units 318 which are arranged in parallel along the axial direction of the coil, the second pressing plate comprises a plurality of second pressing plate units 3110 which are arranged in parallel along the axial direction of the coil, the pressing plate assembly further comprises a plurality of first pressing plate driving element units 319 which drive each first pressing plate unit 318 to press or loosen the first end to be welded 03, and a plurality of second pressing plate driving element units 3111 which drive each second pressing plate unit 3110 to press or loosen the second end to be welded 04; the plurality of first platen units 318 and the plurality of second platen units 3110 are simultaneously operated; when the plurality of first pressure plate units 318 and the plurality of second pressure plate units 3110 are lifted, the bottom surfaces of the plurality of first pressure plate units 318 and the plurality of second pressure plate units 3110 are lower than the top surfaces of the plurality of positioning baffle units 3113 at the highest point of the stroke, so that when the plurality of positioning baffle units 3113 are in a lifted state, a containing space for containing the first end to be welded 03 is formed by enclosing the plurality of positioning baffle units 3113, the plurality of first pressure plate units 318 and the left base 311, and a containing space for containing the second end to be welded 04 is formed by enclosing the plurality of positioning baffle units 3113, the plurality of second pressure plate units 3110 and the right base 312; in this embodiment, the plurality of first pressing plate driving member units 319 and the plurality of second pressing plate driving member units 3111 respectively drive the plurality of first pressing plate units 318 and the plurality of second pressing plate units 3110 to press down simultaneously, and compared with the case where the first pressing plate and the second pressing plate are integral plates, the first pressing plate and the second pressing plate directly press the first end to be welded 03 and the second end to be welded 04. Each of the first and second platen units 318 and 3110 includes a head portion contacting the end to be welded, a middle portion, and a tail portion distant from the head portion; the middle part of each first pressure plate unit 318 and each second pressure plate unit 3110 is hinged with another fixing plate 1143 fixed on the frame 01, and the tail part of each first pressure plate unit 318 and each second pressure plate unit 3110 is hinged with each first pressure plate driving unit 319 and each second pressure plate driving unit 3111 respectively; each first presser plate unit 318 and each second presser plate unit 3110 is in a lever-down, lever-up shape as a whole, and this arrangement makes the force exerted on the first end-to-be-welded 03 and the second end-to-be-welded 04 more stable; meanwhile, the parts of the heads of the first platen units 318 and the second platen units 3110 that contact the ends to be welded are embedded copper blocks 3112; the arrangement of the copper block 3112 can ensure that welding slag is not adhered to the first pressure plate units 318 and the second pressure plate units 3110, and also ensure that the first ends 03 to be welded and the second ends 04 to be welded are not crushed by the first pressure plate units 318 and the second pressure plate units 3110, and when the barrel plate is a film-coated barrel plate, the copper block 3112 can prevent a film on the film-coated barrel from being scratched; the opposite end surfaces of the first platen units 318 and the second platen units 3110 are inclined surfaces, and the two inclined surfaces are formed in an upward opening horn shape as a whole.

The first height alignment mechanism 314 comprises a baffle 3141 and a baffle driving member 3142 for driving the baffle 3141 to ascend and descend, wherein the baffle driving member 3142 is an air cylinder; the baffle driving member 3142 drives the baffle 3141 to ascend so that the first end to be welded 03 and the second end to be welded 04 of the coil are aligned in the height direction thereof (i.e., the axial direction of the coil); as shown in fig. 15, the second height alignment mechanism 315 includes a spring positioning pin 3151 and a spring positioning pin driving member 3152 for driving the spring positioning pin 3151 to integrally move along the direction in which the coil stock is conveyed, the spring positioning pin driving member 3152 is an air cylinder, the internal structure of the spring positioning pin 3151 is shown in fig. 14, the spring positioning pin 3151 is an existing component and includes a spring and a pin located at the top end of the spring, and the top end of the pin is a spherical surface; in this embodiment, when the spring positioning pin 3151 is in the natural state, the vertex of the pin shaft is higher than the vertex of the coil on the transfer mechanism 2 by 3-5 mm; a lower pressure wheel 3116 is provided above the second height alignment mechanism 315, and the lower pressure wheel 3116 is pressed downward all the time. The working principle of the second height alignment mechanism 315 is that when the coil stock on the guiding and supporting mechanism 13 is pushed to the welding mechanism 3, a pressing force is generated between the front end of the coil stock and the spring positioning pin 3151, the spring in the spring positioning pin 3151 is pressed and contracted, the pin shaft of the spring positioning pin 3151 integrally descends, then the pin shaft moves continuously along with the coil stock, the top surface of the pin shaft slides relatively on the inner wall of the coil stock at this time, after the coil stock is conveyed to the welding mechanism 3 by the transfer mechanism 2, the spring of the spring positioning pin 3151 resets, the pin shaft ascends and returns to a natural state, then the spring positioning pin driving member 3152 pushes the spring positioning pin 3151 to move to the side of the first height alignment mechanism 314, the spring positioning pin 3151 enables the first end to be welded 03 and the second end to be welded 04 of the coil stock to be aligned in the height direction (i.e. the axial direction of the coil stock), and in conclusion, the second height alignment mechanism 315 and the first height alignment mechanism 314 cooperate to realize the first end to be welded 03 and the second end to be welded 04 of the coil stock in the height alignment mechanism 314 together Precise alignment in the height direction thereof.

The welding assembly 32 comprises a plurality of laser welding heads 321 arranged above the coil stock and a laser welding head driving part for driving the plurality of laser welding heads 321 to move; the number of the laser welding heads 321 is three, and the laser welding head driving part comprises three laser welding head cylinders connected with the three laser welding heads 321 and an electric cylinder 322 driving the three laser welding head cylinders to reciprocate in the same direction along a gap between the first end 03 to be welded and the second end 04 to be welded. As shown in fig. 6, in one welding stroke, each laser welding head 321 only needs to weld one third of the length of the gap to be welded on one coil stock, so that the welding efficiency of the coil stock is improved; in practical applications, the number of the laser welding heads 321 can be set as required, and is not limited herein.

The working principle of the invention is explained as follows:

in this embodiment, in one working cycle, the three-core rounding mechanism 1 and the welding mechanism 3 act in the same time period, that is, while the three-core rounding mechanism 1 rounds, the welding mechanism 3 positions and welds the coil material conveyed by the transfer mechanism 2 in the previous working cycle; the transfer mechanism 2 pushes the coil stock on the guide supporting mechanism 13 to the welding mechanism 3 and pushes the welded barrel body on the welding mechanism 3 away from the welding mechanism 3. For convenience of description, a cross section of an edge of the first end-to-be-welded 03 is denoted as a side end face a05, and a cross section of an edge of the second end-to-be-welded 04 is denoted as a side end face B06.

The first stage is as follows: three-core edge rolling mechanism 1 and welding mechanism 3

(1) Edge rolling

In the initial state, no coil stock exists on the guide supporting mechanism 13 in the three-core rounding mechanism 1. The flat-plate-shaped barrel plate is conveyed into the three-core rounding assembly 11, the flat-plate-shaped barrel plate is deformed and rolled into a cylinder shape under the combined action of an upper roller 111, a lower roller 112 and an edge roller 113 of the three-core rounding assembly 11, and the guide plate group guides the barrel plate in the rounding process; after the rolling is finished, the roll material is in a horizontal shape.

(2) Positioning before welding

Initial state: the positioning mechanism 31 is provided with a coil stock which is conveyed to the positioning mechanism 31 by the transfer mechanism 2 in the previous working cycle; the supporting part supports and fixes the coil stock; the first circular arc-shaped clasping piece 3131 and the second circular arc-shaped clasping piece 3133 of the clasping mechanism 313 are in an open state; the baffle 3141 of the first height alignment mechanism 314 is in a lifted state, and the spring positioning pin 3151 of the second height alignment mechanism 315 abuts against one end of the first end to be welded 03 and one end of the second end to be welded 04; a plurality of positioning flap units 3113 are all raised; the plurality of first pressure plate units 318 and the plurality of second pressure plate units 3110 are raised;

as shown in fig. 11-1, when the clasping mechanism 313 operates for the first time in a clasping stroke, the first clasping driving element 3132 and the second clasping driving element 3134 in the clasping mechanism 313 drive the first circular-arc-shaped clasping element 3131 and the second circular-arc-shaped clasping element 3133 to horizontally move towards each other to clasp the coil stock, so that the first end 03 to be welded is located in the accommodating space defined by the first pressure plate units 318, the positioning baffle units 3113 and the left base 311, and the side end face a05 of the first end 03 to be welded lightly abuts against the left side faces of the positioning baffle units 3113 due to clasping force; the second to-be-welded end 04 is located in an accommodating space surrounded by the plurality of second pressing plate units 3110, the plurality of positioning baffle units 3113 and the right base 312, and a side end face B06 of the second to-be-welded end 04 is slightly abutted against the right side faces of the plurality of positioning baffle units 3113 due to holding force;

the first end to be welded 03 and the second end to be welded 04 are located at the second station, as shown in fig. 11-2, the clasping mechanism 313 clasps continuously, the plurality of first pressure plate units 318 and the plurality of second pressure plate units 3110 press down, wherein the plurality of first pressure plate units 318 press down for the first time, so that the distance H between the bottom surface at the end edge of the first end to be welded and the top surface of the base is smaller than the plate thickness of the coil stock; the second ends to be welded 04 are pressed against the base by the second pressure plate units 3110;

as shown in fig. 11-3, when the first end to be welded 03 and the second end to be welded 04 are located at the third station, the positioning baffle units 3113 all descend, the clasping mechanism 313 operates for the second time in a clasping stroke, the first clasping member driving member 3132 and the second clasping member driving member 3134 in the clasping mechanism 313 simultaneously drive the first circular-arc-shaped clasping member 3131 and the second circular-arc-shaped clasping member 3133 to move horizontally and clasping the coil material, the first end to be welded 03 moves toward the second end to be welded 04 under the clasping force of the clasping mechanism 313 until the side end a05 abuts against the side end B06 (as shown in fig. 17), and the first pressing plate units 318 continue to press down to press the first end to be welded 03 against the top surface of the left base 311, so that the first end to be welded 03 and the second end to be welded 04 abut against each other, thereby completing the positioning before welding;

this positioning mechanism 31 compares in the laid-open document "positioning mechanism", has saved "the subassembly that struts", "first positioning pressing plate subassembly", "second positioning pressing plate subassembly", "slant driving piece", "move the seat module" in the laid-open document, overall structure is simpler, the time that needs the location among the experimental proof laid-open document is 8 seconds, positioning time is 4 seconds in this embodiment, can practice thrift half positioning time, very big improvement positioning efficiency, and positioning accuracy is higher, the production efficiency of tectorial membrane bucket has been improved.

Welding of

In the welding assembly 32, the three laser welding head cylinders drive the three laser welding heads 321 to move right above the first end 03 to be welded and the second end 04 to be welded, the electric cylinder 322 drives the three laser welding heads 321 to simultaneously move in the same direction to weld the gap between the first end 03 to be welded and the second end 04 to be welded, and the welded coil stock is a barrel body.

In the second stage, the transfer mechanism 2 pushes the coil stock on the guide support mechanism 13 to the welding mechanism 3 and pushes the welded barrel body on the welding mechanism 3 away from the welding mechanism 3;

the initial state of the transfer mechanism 2 is: the two adjacent jaw push plates on the chain 212 are respectively a jaw push plate a214 and a jaw push plate B215, wherein the jaw push plate a214 is positioned on one side of the conveyed starting end of the coil stock on the guide supporting mechanism 13, and the jaw push plate B215 is positioned on one side of the conveyed starting end of the welded barrel body on the welding mechanism 3;

the electric cylinder 322 and the three laser welding head cylinders jointly drive the three laser welding heads 321 to reset, the first pressure plate units 318 and the first pressure plate units 318 are lifted, and the first circular arc-shaped holding part 3131 and the second circular arc-shaped holding part 3133 are opened and reset; the baffle 3141 of the first height alignment mechanism 314 is lowered and reset, and the spring positioning pin 3151 of the second height alignment mechanism 315 is wholly extended and reset horizontally;

the gear driving part 213 of the chain conveyor belt assembly 21 drives the gear 211 to rotate so as to drive the chain 212 to rotate, the chain 212 drives the jaw pushing plate a214 to push the coil stock on the guide supporting mechanism 13 to move towards the welding mechanism 3 in a rotating manner, and simultaneously the chain 212 drives the jaw pushing plate B215 to push the welded barrel body on the welding mechanism 3 to leave the welding mechanism 3 in a rotating manner; when the jaw push plate B215 pushes the welded barrel body on the welding mechanism 3 to leave the welding mechanism 3, the plurality of positioning baffle units 3113 sequentially ascend along the moving direction of the welded barrel body, so as to guide the coil stock moving from the guide support mechanism 13 to the welding mechanism 3; after the coil stock moves to the target position on the welding mechanism 3, the baffle driving member 3142 of the first height alignment mechanism 314 drives the baffle 3141 to ascend, and the spring positioning pin driving member 3152 of the second height alignment mechanism 315 drives the spring positioning pin 3151 to move towards the side of the first height alignment mechanism 314; the first height alignment mechanism 314 and the second height alignment mechanism 315 cooperate to align the first end to be welded 03 and the second end to be welded 04 of the coil in the height direction thereof;

returning to the first stage, and repeating the cycle.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a full-automatic welding equipment of steel drum, includes welding mechanism, has the first coil stock of treating welding end and second and treating welding end, a serial communication port, welding mechanism includes positioning mechanism, positioning mechanism includes:

2. The full-automatic steel drum welding equipment according to claim 1, characterized in that: the positioning mechanism further comprises a positioning baffle piece, and the positioning baffle piece can enter or separate from the position between the first end to be welded and the second end to be welded, so that the first end to be welded and the second end to be welded are not overlapped; the reserved gap in the second station enables the distance between the bottom surface of the end edge of the first end to be welded and the top surface of the base to be smaller than the thickness of the coiled material.

3. The full-automatic steel drum welding equipment according to claim 2, characterized in that: the base is provided with an accommodating cavity, the upper end face of the base is provided with a notch along the axial direction of the coil stock, and the notch is communicated with the accommodating cavity;

4. The full-automatic steel drum welding equipment according to claim 3, characterized in that: the three-core edge rolling mechanism also comprises a three-core edge rolling mechanism and a transferring mechanism;

5. The full-automatic steel drum welding equipment according to claim 4, characterized in that:

the positioning mechanism further comprises a first height alignment mechanism which is arranged on the front side of the moving direction of the coil stock in a blocking mode and enables the first end to be welded and the second end to be welded to be aligned in the axial direction of the coil stock, and a second height alignment mechanism which is arranged on the rear side of the moving direction of the coil stock and enables the first end to be welded and the second end to be welded to be aligned in the axial direction of the coil stock;

the welding mechanism further comprises a welding assembly for welding the coil materials positioned on the positioning mechanism into a barrel.

6. The full-automatic steel drum welding equipment according to claim 5, characterized in that: the first height alignment mechanism comprises a baffle and a baffle driving piece for driving the baffle to lift; the second height alignment mechanism comprises a spring positioning pin and a spring positioning pin driving piece for driving the spring positioning pin to integrally move along the conveying direction of the coil stock; and a lower pressing wheel is arranged above the second height alignment mechanism and is always pressed downwards.

7. The full-automatic steel drum welding equipment according to claim 4, characterized in that: a material conveying clamping rod is arranged at a material inlet of the three-core edge rolling component; the material conveying clamping roller comprises an upper driving clamping roller vertically arranged from top to bottom, a lower driven clamping roller in transmission connection with the upper driving clamping roller through a gear, and an upper driving clamping roller driving piece for driving the upper driving clamping roller to rotate.

8. The full-automatic steel drum welding equipment according to claim 5, characterized in that: the supporting part is a plurality of second supporting rollers arranged along the axial direction of the coil stock, and a plurality of first supporting rollers of the guiding supporting mechanism and a plurality of second supporting rollers of the positioning mechanism are linearly arranged; the propelling movement subassembly is for setting up the chain conveyer belt subassembly on a plurality of first support running rollers and a plurality of second support running roller both sides limit, chain conveyer belt subassembly includes the gear, overlaps the chain of establishing on the gear, the rotatory gear drive spare of drive gear.

9. The full-automatic steel drum welding equipment according to claim 4, characterized in that: the coil stock is a barrel plate before being fed into the three-core rounding mechanism, and when the barrel plate enters the three-core rounding mechanism, one end, entering first, of the barrel plate is a head end, and the other end, entering later, of the barrel plate is a tail end; the guide plate group comprises a first guide plate arranged on the side where the head end of the barrel plate is located after the rounding is finished and a second guide plate group arranged on the side where the tail end of the barrel plate is located after the rounding is finished; the second guide plate group comprises a second guide plate and a guide plate driving part for driving the second guide plate to swing along the radial direction of the coil material by taking the lower end of the second guide plate as a base point; in the initial state, the second guide plate is wholly inclined outwards along the radial direction of the coil material by taking the lower end of the second guide plate as a base point.

10. The full-automatic steel drum welding equipment according to claim 8, characterized in that: the chain is provided with claw push plates which are used for pushing the coil materials and pushing the welded barrel bodies at equal intervals.

11. The full-automatic steel drum welding equipment according to claim 3, characterized in that: the base comprises a left base and a right base which are arranged in a bilateral symmetry manner; the top surface of the left base and the adjacent part of the top surface of the right base are both flat surfaces, and the top surface of the left base and the top surface of the right base except the flat surfaces are both arc surfaces; the notch sets up in the juncture of two planishing faces, the middle part of notch along its length direction and the tip intercommunication of its one end of notch have gas blowing device.

12. The full-automatic steel drum welding equipment according to claim 6, characterized in that: the welding assembly comprises a plurality of laser welding heads arranged above the coil stock and a laser welding head driving piece for driving the laser welding heads to move;