Background technology
Now outer cover of water heater adds man-hour, generally adopts round as a ball, flanging, seaming, or embraces circle, welding production technology.The former complex production process, labour intensity is big, and production efficiency is low; The latter welds energy consumption to be increased, and weld seam need be handled again.China utility model patent Granted publication CN2338111Y " tuber is stung the seam device " is disclosed to be stung on the seam device front end support, and the device that closes up of a pair of cylindrical roller and turbination roller successively is set; Upper part of the frame has two pony presses and two precompressed wheels at the device middle part, and the prepressing device of three carrying rollers is arranged at the support bottom; The building mortion that comprises spring leaf, two rollers, shaping carrying roller, lower roll, two parts such as pony roll, motivation transfer motion part, plectane, guide rail and slide plate at the device rear portion.This patent is used for square tube and stings seam, and the waiting of feeder stung seam sheet material and be converted into square tubulose, is a kind of device of stinging tailor's preface after the square tube forming process again that passed through.This device begins to add man-hour, needs artificial pusher, is difficult to accurate location; The square tubulose sheet material of process and many parts rub, and cause mechanical damage easily.
Summary of the invention
The present invention will solve existing outer cover of water heater processing and adopt earlier round as a ball back flanging; The technology of carrying out seaming production at last is loaded down with trivial details; Labour intensity is big, and the technical problem that production efficiency is low provides a kind of simple in structure; Save the energy, the flat-sheet material after the edge bending is directly embraced the outer cover of water heater of circle and button seam and embraced circle button seam device.
In order to solve the problems of the technologies described above, the technical scheme that the present invention takes is: a kind of outer cover of water heater is embraced circle button seam device, comprises support, and the internal mold level is installed on the support, and axial notch is arranged at the top; Left armful pawl is embraced a pawl with the right side and is positioned at the internal mold left and right sides, and its inner face cooperates with the internal mold side, and an an armful pawl driving power drive left side armful pawl is held internal mold tightly with a right side armful pawl or opened; Sheet material to be processed is embraced pawl and right embracing between the pawl at an internal mold and a left side after the edge bending; There is the power-actuated button slit die of button slit die the top of internal mold, and the button slit die cooperates with internal mold.
Embrace an a pawl driving power drive left side armful pawl and a right armful pawl and open, sheet material to be processed is positioned after the edge bending send into internal mold and a left side armful pawl and the right side are embraced between the pawl.Embracing a pawl driving power drive left side armful pawl embraces to internal mold with a right armful pawl; Sheet material to be processed is close on the outer surface of internal mold after making the edge bending; Embraced into cylindrical shape by volume; The bending part overlap joint overlaps the internal mold top axle to groove; Button slit die power drive button slit die is pressed to the overlapping bending part of overlap joint; The button slit die cooperates with internal mold makes seaming button seam, and button is sewn in the axial notch of internal mold top.Pawl is embraced on a left side and a right armful pawl opens, and embraces the tubular finished product disengaging internal mold after circle is detained seam.The present invention is simple in structure, makes the flat-sheet material after the edge bending directly embrace circle and button seam, and the sheet material wearing and tearing are slight, reduced manufacturing procedure, and technology is simple, and production efficiency is improved, and has alleviated labor intensity of operating personnel.It is circular outer cover of water heater that said armful of circle button of the present invention seam is not limited to the processing cross section, comprise that also cross section is oval outer cover of water heater, even cross section is the outer cover of water heater of smoothed curve.
Internal mold is a cantilevered, and fixedly on the support, the rear end is unsettled for its front end.Be convenient to charging and take out finished product.
Left armful pawl is hinged on the support with the lower end that pawl is embraced on the right side, and the cylinder body of embracing pawl cylinder or armful pawl oil cylinder of armful pawl driving power is hinged on the support, and piston rod and a left side armful pawl of embracing pawl cylinder or armful pawl oil cylinder are hinged with the right side armful pawl.The left armful pawl of armful pawl cylinder of the left armful pawl of connection or armful pawl hydraulic oil cylinder driving, armful pawl cylinder of the connection right side armful pawl or an armful pawl hydraulic oil cylinder driving right side armful pawl are held internal mold tightly or are opened.The compact conformation of device, simple, a left side are embraced pawl and are swift in motion with the right pawl of embracing.Have in the prior art manyly can make a left side embrace pawl to hold internal mold or open version tightly with the right pawl of embracing, for example embrace cylinder, oil cylinder or a motor-driven left side that pawl drives power embrace pawl with right embrace pawl in the both sides of internal mold the parallel version that moves or the like.
The internal mold left and right sides at least respectively has two left sides to embrace pawl and the right pawl of embracing; Pawl and the right pawl of embracing are embraced in the left side of the internal mold left and right sides, with symmetrical the arranging relatively of vertical plane of crossing the internal mold axis; The internal mold front and rear each side has a left side to embrace pawl and the right pawl of embracing.Internal mold one side respectively has two or more left sides to embrace pawl and the right pawl of embracing, and the strength of filling the span of a man's arms is big, is suitable for the bigger outer cover of water heater of processing length.The left side at position is embraced pawl and is embraced the both sides, front and back that pawl is held sheet material to be processed tightly with the right side before and after the internal mold, makes sheet material to be processed more stable.
Pawl is embraced on the left side of the internal mold front and rear left and right sides respectively has a left side to embrace pawl locating piece and the right pawl locating piece of embracing with right embracing on the pawl.A left side is embraced the pawl locating piece and is embraced the pawl locating piece with location before and after the sheet material to be processed with the right side, guarantees machining accuracy.
Location backstop is arranged on the support of the internal mold left and right sides.Location backstop is located about with sheet material to be processed, guarantees machining accuracy.
The fixed installation internal mold supports cylinder or internal mold support cylinder on the support, and the piston rod that internal mold supports cylinder or internal mold support cylinder connects the internal mold support arm, and the internal mold support arm cooperates with internal mold.The button slit die is pressed to the overlapping bending part of overlap joint, and when the button slit die cooperated seaming with internal mold, the internal mold support arm supported internal mold, reduced internal mold flexural deformation.
Support is provided with hold-down mechanism, and the oil cylinder of hold-down mechanism or cylinder block connect support, and piston rod connects compact heap, and piston rod is on the vertical plane of crossing the internal mold axis, perpendicular to the internal mold axis.After sheet material to be processed is positioned and sends into, and a left side embraces pawl and holds tightly in the process of internal mold with the right pawl of embracing, and compact heap is pressed on sheet material to be processed on the internal mold, prevents that sheet material to be processed from moving and influence machining accuracy.
Be provided with tension mechanism in the internal mold, the oil cylinder of tension mechanism or cylinder block are connected the inner chamber of internal mold, and piston rod connects tightening piece, and piston rod is on the vertical plane of crossing the internal mold axis, perpendicular to the internal mold axis.The button slit die is pressed to the overlapping bending part of overlap joint, and the button slit die cooperates with internal mold when making the bending seaming, and tightening piece swells sheet material to be processed downwards, makes the overlapping bending fastening of overlap joint.
Advantage of the present invention is: a left side is embraced pawl and with the right pawl of embracing sheet material to be processed is held tightly on internal mold, and volume is embraced into cylindrical shape, and the button slit die cooperates with internal mold makes the bending seaming.The present invention is simple in structure, has reduced manufacturing procedure, makes the flat-sheet material after the edge bending directly embrace circle and button seam, and the sheet material wearing and tearing are slight, reduced manufacturing procedure, and technology is simple, and production efficiency is improved, and has alleviated labor intensity of operating personnel.
The specific embodiment
Accompanying drawings.Illustrated embodiment is that a kind of storage-type electric water heater shell is embraced circle button seam device; Its button slit die power is press; The cylinder body of intermediate transverse girder cylinder 1 is fixed on the entablature 2, and piston rod drives intermediate transverse girder 3 and pumps, button slit die 11 be fixed on intermediate transverse girder 3 below.The left end of cantilevered internal mold 9, promptly front end is fixed on the support through interior mold framework 10, the right-hand member of internal mold 9, promptly the rear end is unsettled.The fixed installation internal mold supports cylinder on the support of the right-hand member below of internal mold 9; The piston rod of cylinder connects the internal mold support arm; Sheet material 14 to be processed is positioned and sends into; When dress button slit die 11 cooperated seaming with internal mold 9, the internal mold support arm rose the rear end of supporting internal mold 9, and the internal mold that do not draw among the figure supports cylinder and internal mold support arm.A left side that is positioned at internal mold 9 left sides among Fig. 1 is embraced pawl 8 and is had four groups.Every group has two to embrace pawl, embraces pawl and is fixedly mounted on armful pawl installing plate, embraces a pawl installing plate and is hinged on the support.It is to embrace a pawl cylinder 6 that armful pawl of present embodiment drives power, and cylinder body is hinged on the support, and piston rod is hinged with the outer rim of embracing the pawl installing plate.Pawl 5 is embraced on the right side that is positioned at internal mold 9 right sides, armful pawl driving power is identical with the left side.The left side of internal mold 9 left and right sides is embraced pawl 8 and is arranged relatively with the right pawl 5 of embracing, to cross the vertical plane symmetry of internal mold axis.A left side is embraced pawl 8 and is fitted with the contact-making surface of right armful pawl 5 with internal mold 9.The both sides of internal mold front end have a left side to embrace pawl 8 and pawl 5 is embraced on a right side, and the both sides of internal mold rear end also have a left side to embrace pawl 8 and pawl 5 is embraced on a right side, and a left side that is positioned at both sides, internal mold 9 front and back end is embraced pawl 8 and embraced the both sides, front and back that pawl 5 is held sheet material 14 to be processed tightly with right.When sheet material 14 to be processed was sent between internal mold 9 and a left side armful pawl 8 and the right armful pawl 5 after the edge bending of present embodiment, the side that bending downwards is 45 ° was positioned at the left side of internal mold 9.During work, a left side is embraced pawl 8 and earlier the sheet material to be processed 14 in left side is rolled onto on the internal mold 9, and a right then armful pawl 5 is rolled onto the sheet material to be processed 14 on right side on the internal mold 9 again, and like this, the bending overlap joint overlaps, referring to Fig. 2 and Fig. 3.Pawl 8 is embraced on a left side that is positioned at both sides, internal mold 9 front and back end respectively has a left side to embrace pawl locating piece 7 and the right pawl locating piece 4 of embracing with right embracing on the pawl 5, a left side is embraced pawl locating piece 7 and with the right pawl locating piece 4 of embracing sheet material to be processed 14 front and back located; Being positioned on the support of the left and right sides of internal mold 9 has location backstop, and location backstop is with sheet material to be processed about 14 location, the location backstop of not drawing among the figure.The groove that is parallel to its axis is arranged at the top of internal mold 9; The bending overlap joint overlaps the internal mold top axle to groove, and button slit die 11 is pressed to the overlapping bending part of overlap joint, and button slit die 11 cooperates seaming button seam with internal mold 9; Button is sewn in the axial notch of internal mold top, referring to Fig. 4 and Fig. 5.The cylinder body of present embodiment hold-down mechanism clamping cylinder 16 is connected on the support; Piston rod end upwards connects compact heap 15, and piston rod is on the vertical plane of crossing the internal mold axis, perpendicular to the internal mold axis; After sheet material 14 to be processed is positioned and sends into; A left side is embraced pawl 8 and is held tightly in the process of internal mold 9 with the right pawl 5 of embracing, and compact heap 15 is pressed on sheet material 14 to be processed on the internal mold 9, prevents that sheet material 14 to be processed from moving and influence machining accuracy.The cylinder body of present embodiment tension mechanism tensioner cylinder 12 is installed in the inner chamber of internal mold 9; Downward piston rod end connects tightening piece 13, and piston rod is on the vertical plane of crossing the internal mold axis, perpendicular to the internal mold axis; Button slit die 11 is pressed to the overlapping bending part of overlap joint; Button slit die 11 cooperates when making the bending seaming with internal mold 9, and tightening piece 13 swells sheet material to be processed downwards, makes the overlapping bending fastening of overlap joint.Button seam shown in Figure 5 is accomplished, and a left side is embraced pawl 8 and opened with the right pawl 5 of embracing, tightening piece 13 and compact heap 15 withdrawals, and button slit die 11 rises.