CN112893563A - Bending forming device for manufacturing electric fan mesh enclosure - Google Patents

Bending forming device for manufacturing electric fan mesh enclosure Download PDF

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Publication number
CN112893563A
CN112893563A CN202110160691.1A CN202110160691A CN112893563A CN 112893563 A CN112893563 A CN 112893563A CN 202110160691 A CN202110160691 A CN 202110160691A CN 112893563 A CN112893563 A CN 112893563A
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China
Prior art keywords
ring
telescopic
bending
mesh enclosure
pressing
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Granted
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CN202110160691.1A
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CN112893563B (en
Inventor
王小婷
马双斌
厉兆英
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Heshan G&y Electrical Industries Co ltd
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Individual
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Publication of CN112893563A publication Critical patent/CN112893563A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10Bending specially adapted to produce specific articles, e.g. leaf springs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/22Auxiliary equipment, e.g. positioning devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Abstract

The invention relates to a bending and forming device for manufacturing a mesh enclosure of an electric fan, which comprises a bottom plate, a supporting bracket, an extrusion plate, a pressing mechanism and a straightening mechanism, wherein the supporting bracket is distributed above the middle part of the bottom plate, the lower end of the supporting bracket is installed on the top of the bottom plate through a supporting telescopic column, the extrusion plate is positioned right above the supporting bracket, the extrusion plate is installed on the pressing mechanism, the pressing mechanism is installed on an external supporting frame, the straightening mechanism is positioned on the outer side of the supporting telescopic column, and the straightening mechanism is installed on the bottom plate. The invention can solve the problems existing in the prior art that: the shape of the middle part of the mesh enclosure needs to be extruded at first, and then the vertical part at the outer end of the mesh enclosure is straightened, so that the mesh enclosure cannot be extruded and straightened at one time; when the extruder extrudes the screen panel, the forming of the middle part of the screen panel and the bending of the outer end are carried out synchronously, and the operation easily causes the phenomenon that the iron wire in the middle part of the screen panel is bent, thereby influencing the forming effect of the screen panel and other problems.

Description

Bending forming device for manufacturing electric fan mesh enclosure
Technical Field
The invention relates to the field of fan processing machinery, in particular to a bending and forming device for manufacturing a mesh enclosure of an electric fan.
Background
The electric fan is a household appliance which uses a motor to drive fan blades to rotate so as to accelerate the circulation of air, and is mainly used for cooling, relieving summer heat and circulating air. The electric fan guard is a component of an electric fan, and has the main function of ensuring safety and preventing accidents caused by the fact that a human body touches fan blades.
Electric fan screen panel middle part is the annular slab, the outer end of annular slab evenly welds the iron wire of equidimension, later need carry out the shaping extrusion to the screen panel, make the screen panel can extrude the middle part and be the slope form, the outer end is the leading to the fact of vertical form, the screen panel extrusion is accomplished the back, at its outer end welding iron wire ring, make the screen panel form a whole, a plurality of beaded finish of screen panel middle part welding when necessary, so that increase the stability of screen panel, current screen panel generally goes on through the extruder when carrying out the shaping extrusion, the problem that exists when current screen panel carries out the shaping extrusion is as follows:
1. the mesh enclosure needs to be extruded in the middle of the mesh enclosure, and then the vertical part at the outer end of the mesh enclosure is straightened, so that the mesh enclosure cannot be extruded and straightened at one time, the processing efficiency of the mesh enclosure is affected, and the mesh enclosure is positioned when being extruded and formed, so that the forming effect of the mesh enclosure is poor;
2. when the screen panel was extruded to the extruder, the shaping in its middle part was gone on with the buckling of outer end in step, and this kind of operation causes the iron wire in screen panel middle part to take place crooked phenomenon easily to influence the formation effect of screen panel, the screen panel can't carry out the pressurize after carrying out the shaping extrusion and handles.
Disclosure of Invention
In order to solve the above problems, the present invention provides a bending and forming device for manufacturing a mesh enclosure of an electric fan, which comprises a bottom plate, a supporting bracket, an extrusion plate, a pressing mechanism and a straightening mechanism, the invention can extrude the fan screen, firstly, the screen of the fan is placed above the supporting bracket, the pressing mechanism can drive the extrusion plate to move downwards, so that the bearing bracket is matched with the extrusion plate to extrude and form the fan mesh enclosure, and the straightening mechanism can straighten the lower end of the molded mesh enclosure.
The supporting bracket and the extrusion plate are of disc structures which are coaxially arranged, the side face on the middle of the supporting bracket is provided with a chute with an annular structure, the outer side of the upper end of the supporting bracket is provided with an arc-shaped chamfer, the lower side face of the extrusion plate is provided with an annular bulge matched with the chute, and the chute on the supporting bracket and the annular bulge on the extrusion plate are matched to extrude the middle of the mesh enclosure into an inclined shape.
The pressing mechanism comprises a bending ring arranged on the outer side of the extrusion plate, the inner diameter of the bending ring is larger than the outer diameter of the bearing bracket, the top of the bending ring is provided with a connecting frame, the cross section of the connecting frame is of an inverted U-shaped structure, resetting telescopic columns are symmetrically arranged between the lower side surface of the middle part of the connecting frame and the top of the extrusion plate, the upper side surface of the connecting frame is provided with a locking support plate through a hydraulic cylinder, the telescopic force of the bearing telescopic column is larger than the telescopic force of the resetting telescopic column, the bearing telescopic column contracts after the resetting telescopic column contracts, when the pressing mechanism works in detail, the pressing mechanism can be arranged on an external support frame through the locking support plate, so that the axial leads of the bearing bracket and the extrusion plate are corresponding, the extrusion plate can be driven to move downwards synchronously through the extension movement of the hydraulic cylinder, the middle part of the bearing bracket and the extrusion plate are matched, the flexible post that resets can contract for the bending ring can be buckled downwards the iron wire that is located the support frame outside, and after the bending ring was buckled the iron wire and is accomplished, the extension motion of pneumatic cylinder can drive the flexible post of bearing and take place the shrink, thereby the screen panel can carry out the pressurize under the flexible post of bearing and the flexible post's that resets effect, thereby increases the shaping effect of screen panel.
The straightening mechanism comprises a clamping and pressing ring arranged on the outer side of the bearing telescopic column, a support ring is arranged on the outer side of the clamping and pressing ring, the axial lead of the clamping and pressing ring and the axial lead of the support ring correspond to the axial lead of the bearing bracket, the inner diameter of the support ring corresponds to the inner diameter of the bending ring, telescopic grooves are uniformly formed in the side face, corresponding to the support ring, of the clamping and pressing ring along the circumferential direction of the clamping and pressing ring, straightening press blocks are mounted on the inner wall of the telescopic grooves through telescopic springs, one ends, located in the telescopic grooves, of the straightening press blocks are of square structures, the other ends of the straightening press blocks are of arc structures, a return column is arranged on the side face, far away from the support; when the briquetting of flare-outing is in the extension state, can make up the shaping loop configuration between the briquetting of flare-outing, the loop configuration of flare-outing the briquetting constitution can prevent that the iron wire of screen panel can't carry out the processing operation of flare-outing, concrete during operation, the mechanism of flare-outing can be with the iron wire that is in vertical state after the screen panel is buckled the processing of flare-outing, the subsequent processing of screen panel of being convenient for, when the screen panel is buckled and is accomplished and continue the downstream, screen panel outer end bending part can move to between card clamp ring and the support ring, the briquetting of flare-outing can be extruded the vertical part of screen panel under expanding spring's effect, when the screen panel rebound, its vertical part can be flare-outed under the.
The bottom plate is uniformly provided with U-shaped grooves, the positions of the U-shaped grooves correspond to the positions of the telescopic grooves one by one, one ends of the U-shaped grooves penetrate through the clamping ring and are communicated with the telescopic grooves, the other ends of the U-shaped grooves are positioned on the inner side of the clamping ring, positioning frames are arranged in the U-shaped grooves through positioning springs and are of U-shaped structures, and the two ends of each positioning frame penetrate through the U-shaped grooves; the lower side surface of the support bracket is provided with unlocking columns, the positions of the unlocking columns correspond to the position of one end of the positioning frame, which is positioned at the inner side of the clamping ring, one by one, and the straightening press block can be in a contracted state under the positioning action of the positioning frame, so that the vertical part of the net cover can smoothly move to a position between the clamping ring and the support ring, when the net cover continuously moves downwards and the supporting telescopic column is completely contracted, the unlocking columns can press down the inner end of the positioning frame, so that the straightening press block is outwards popped out under the restoring force of the telescopic spring, so that the arc structure of the straightening press block extrudes the vertical section of the net cover on the inner wall of the support ring, then the hydraulic cylinder is controlled to perform contraction motion, the vertical part of the net cover can be straightened under the action of the straightening press block, the straightening press block is in a contracted state when the net cover moves downwards, and the straightening press block pops out when, this kind of mode can prevent that the vertical section of screen panel from propping on the briquetting of flare-outing, causes the vertical portion of screen panel to take place to warp.
As a preferred technical scheme of the invention, a square sliding groove and a square sliding block which are in sliding fit are respectively arranged between the telescopic groove and the straightening press block, a positioning groove is arranged at a position of the straightening press block corresponding to one end of the positioning frame, which is located at the telescopic groove, is of a trapezoidal structure, the trapezoidal structure of the positioning frame is located in the positioning groove, the smooth movement of the straightening press block in the telescopic groove can be increased by the cooperation of the square sliding groove and the square sliding block, the initial position of the straightening press block can be limited by locking the trapezoidal structure of the positioning frame in the positioning groove, and the vertical part of the mesh enclosure can smoothly move downwards.
As a preferred technical scheme of the invention, the middle part of the return column is provided with a trapezoidal groove, the side surface of the trapezoidal groove far away from the straightening press block is an inclined surface, the lower end of the unlocking column corresponding to the side surface of the inclined surface of the trapezoidal groove is provided with a triangular lug, and the inclined surface of the triangular lug is matched with the inclined surface of the trapezoidal groove; expansion spring be compression spring, when straightening the briquetting and be in the shrink state, the trapezoidal groove that passes that the unblock post can be smooth and easy, when the unblock post drives to straighten the briquetting and pop out and upwards along with the support bracket, the triangle-shaped lug of support bracket cooperatees with the inclined plane in trapezoidal groove and makes return post inwards move, the inward movement of return post can drive to straighten the briquetting and reply initial position, can drive its automatic contraction during the trapezium structure of straightening briquetting and locating rack, so that the locating rack can lock the briquetting of straightening again, thereby the vertical part of screen panel need not manual control when straightening the operation.
As a preferred technical scheme of the invention, the middle part of the upper side surface of the supporting bracket is provided with a lapping hole, a lapping column is coaxially arranged in the lapping hole, the lower end of the lapping column is of a telescopic structure, the upper end of the lapping column is provided with a lapping body of a conical structure, the lapping body is positioned above the supporting bracket, the distance from the upper side surface of the lapping body to the supporting bracket is less than the length of the telescopic end of the lapping column, the lapping body can completely move into the lapping hole due to the arrangement, a mesh enclosure can be initially placed on the lapping body, the lapping body of the conical structure can limit the mesh enclosure, the middle part of the mesh enclosure corresponds to the middle part of the supporting bracket, when the extrusion plate moves downwards, the lapping column can automatically contract, and the lapping body can move into the lapping hole, so that the lapping body cannot influence the forming of the mesh enclosure.
As a preferred technical solution of the present invention, a lower pressing body is disposed on a lower side surface of a middle portion of the pressing plate, an annular pressing sleeve is disposed on an outer side of the lower pressing body, an annular groove is disposed at a position of the pressing plate corresponding to the annular pressing sleeve, an upper end of the annular pressing sleeve is mounted on an upper side wall of the annular groove through a lower pressing spring, when the pressing plate moves downward, the annular pressing sleeve can first press the middle portion of the mesh enclosure, so that the mesh enclosure does not deflect or displace, and the position of the mesh enclosure is prevented from changing when the mesh enclosure is pressed, which results in poor forming effect of the mesh enclosure, the lower pressing body can press the placing body downward for a certain distance, thereby preventing the placing body from generating upward pushing force when the mesh enclosure is formed and pressed, which results in deformation.
As a preferable technical scheme of the invention, the inner diameter of the annular pressing sleeve is larger than the outer diameter of the placing body, and the axial lead of the annular pressing sleeve corresponds to the axial lead of the placing body, so that the positioning precision of the mesh enclosure can be improved.
As a preferred technical scheme of the present invention, the side surface of the bending ring corresponding to the extrusion plate is provided with shaped grooves at equal intervals along the circumferential direction thereof, the inner wall of the shaped grooves is provided with a fitting pressing block through a shaped spring, and the fitting pressing block can bend the mesh enclosure positioned outside the support bracket along the arc-shaped chamfer structure of the support bracket, so as to prevent the mesh enclosure from being bent into a sharp shape.
As a preferred technical scheme of the invention, one end of the laminating pressing block, which is positioned outside the shaping groove, is of an arc structure, the arc structures of the laminating pressing block form a ring shape, the end face of the arc structure of the laminating pressing block is provided with a flexible cushion, the lower end of the arc structure of the laminating pressing block is provided with a chamfer, the lower end of the mesh enclosure can be bent into a vertical shape by the arc structure of the laminating pressing block, the arc chamfer of the laminating pressing block can prevent the mesh enclosure from being damaged by the arc chamfer, the ring structure formed by the laminating pressing block can prevent an iron wire of the mesh enclosure from being clamped between the laminating pressing blocks, and when the laminating pressing block shrinks, the flexible cushions at the two ends of the laminating pressing block can automatically deform.
The invention has the beneficial effects that:
the invention can carry out forming extrusion operation on the electric fan mesh enclosure and straighten the vertical part at the outer end of the mesh enclosure, thereby completing the forming operation of the fan mesh enclosure at one time;
the extrusion plate can be driven to synchronously move downwards through the extension movement of the hydraulic cylinder, so that the support bracket and the extrusion plate are matched to form and extrude the middle part of the mesh enclosure, and the mesh enclosure can maintain pressure under the action of the support telescopic column and the reset telescopic column when the hydraulic cylinder continues to extend, so that the forming effect of the mesh enclosure is improved;
when the mesh enclosure is bent and continues to move downwards, the bent part at the outer end of the mesh enclosure can move between the clamping and pressing ring and the support ring, the straightening pressing block can extrude the vertical part of the mesh enclosure under the action of the telescopic spring, and when the mesh enclosure moves upwards, the vertical part of the mesh enclosure can be straightened under the action of the straightening pressing block;
the mesh enclosure can be limited by the placing body with the conical structure, so that the middle part of the mesh enclosure corresponds to the middle part of the support bracket, when the extrusion plate moves downwards, the annular pressing sleeve can firstly press the middle part of the mesh enclosure, so that the mesh enclosure cannot deflect and displace, and the position of the mesh enclosure is prevented from changing when the mesh enclosure is extruded, and the forming effect of the mesh enclosure is poor;
and fifthly, the attaching pressing block can bend the mesh enclosure positioned on the outer side of the support bracket along the arc-shaped chamfer structure of the support bracket, so that the mesh enclosure is prevented from being sharp after being bent.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples.
FIG. 1 is a schematic view of a first configuration of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view of the present invention between the bending ring, the connecting frame, the return telescoping post, the base plate, the support bracket and the stripper plate;
FIG. 5 is a schematic structural view of the bottom plate, the straightening mechanism, the supporting telescopic column and the unlocking column of the present invention;
FIG. 6 is a cross-sectional view of the present invention between the base plate, the straightening mechanism and the unlocking post;
FIG. 7 is a schematic view of a fan guard according to the present invention;
fig. 8 is a schematic structural view of the extruded fan guard.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1 to 8, a bending and forming device for manufacturing a mesh enclosure of an electric fan comprises a base plate 1, a support bracket 2, a pressing plate 3, a pressing mechanism 4 and a straightening mechanism 5, the fan screen cover extrusion forming device is characterized in that a supporting bracket 2 is distributed above the middle part of a base plate 1, the lower end of the supporting bracket 2 is arranged on the top of the base plate 1 through a supporting telescopic column 21, an extrusion plate 3 is positioned right above the supporting bracket 2, the extrusion plate 3 is arranged on a lower pressing mechanism 4, the lower pressing mechanism 4 is arranged on an external supporting frame, a straightening mechanism 5 is positioned on the outer side of the supporting telescopic column 21, and the straightening mechanism 5 is arranged on the base plate 1, can drive the stripper plate 3 downstream through pushing down the mechanism 4 for support bracket 2 and stripper plate 3 cooperate and carry out extrusion with the fan screen panel, straighten the mechanism 5 and can straighten the action with the lower extreme of screen panel after the shaping.
The supporting bracket 2 and the extrusion plate 3 are both of a disc-shaped structure which is coaxially arranged, the side surface on the middle part of the supporting bracket 2 is provided with a chute 22 with an annular structure, the outer side of the upper end of the supporting bracket 2 is provided with an arc-shaped chamfer, the lower side surface of the extrusion plate 3 is provided with an annular bulge matched with the chute 22, and the chute 22 on the supporting bracket 2 and the annular bulge on the extrusion plate 3 are matched to extrude the middle part of the mesh enclosure into an inclined shape.
Support bracket 2's the side middle part of going up be provided with and take hole 24, it puts post 25 to take coaxial being provided with in the hole 24, the lower extreme of putting post 25 is put for extending structure to take, the upper end of putting post 25 is provided with the putting body 26 of taking of conical structure, it is located support bracket 2 top to take the body 26 to put, the distance of taking the side to support bracket 2 on the body 26 is less than the length of taking the flexible end of putting post 25, this kind of setting makes and puts body 26 and can remove completely in taking hole 24, the screen panel can be placed on putting body 26 initially, the body 26 of taking of conical structure can carry on spacingly to the screen panel, make the middle part of screen panel and the middle part of support bracket 2 corresponding, when the stripper plate 3 moves down, it can contract automatically to take to put post 25, it can move to take in the hole 24 to put the body 26, make and put the body 26 can not influence the shaping of screen panel.
The middle part downside of stripper plate 3 be provided with down-pressure body 31, the outside of down-pressure body 31 is provided with annular pressure cover 32, the position that stripper plate 3 corresponds annular pressure cover 32 is provided with ring channel 33, the upper end that the annular was pressed cover 32 is installed on the last lateral wall of ring channel 33 through push down spring 34, when stripper plate 3 downstream, annular pressure cover 32 can be pushed down at first the middle part of screen panel, make the screen panel can not take place skew and displacement, its position changes when preventing that the screen panel from extrudeing, cause the shaping effect of screen panel poor, down-pressure body 31 can will take and put body 26 and push down certain distance, take when preventing the screen panel from carrying out the shaping extrusion and put body 26 and produce ascending top stretching force and cause the deformation of screen panel.
The inner diameter of the annular pressing sleeve 32 is larger than the outer diameter of the placing body 26, and the axial lead of the annular pressing sleeve 32 corresponds to the axial lead of the placing body 26, so that the positioning precision of the mesh enclosure can be improved.
The pressing mechanism 4 comprises a bending ring 41 arranged on the outer side of the extrusion plate 3, the inner diameter of the bending ring 41 is larger than the outer diameter of the support bracket 2, a connecting frame 42 is arranged at the top of the bending ring 41, the cross section of the connecting frame 42 is of an inverted U-shaped structure, resetting telescopic columns 43 are symmetrically arranged between the lower side surface of the middle of the connecting frame 42 and the top of the extrusion plate 3, locking support plates 45 are arranged on the upper side surface of the connecting frame 42 through hydraulic cylinders 44, the telescopic force of the supporting telescopic columns 21 is larger than the telescopic force of the resetting telescopic columns 43, the supporting telescopic columns 21 are contracted after the resetting telescopic columns 43 are contracted, and during specific work, the pressing mechanism 4 can be arranged on an external support frame through the locking support plates 45, so that the axial leads of the support bracket 2 and the extrusion plate 3 are corresponding, the extrusion plate 3 can be driven to synchronously move downwards through the extension movement of the hydraulic cylinders 44, and, The stripper plate 3 cooperatees and carries out the shaping extrusion with the middle part of screen panel, when pneumatic cylinder 44 continues to extend, flexible post 43 that resets can contract, make the iron wire that the bending ring 41 can be located the 2 outsides of support bracket buckle downwards, bending ring 41 buckles the iron wire and accomplishes the back, the extension motion of pneumatic cylinder 44 can drive the flexible post 21 of bearing and take place the shrink, thereby the screen panel can carry out the pressurize under the flexible post 21 of bearing and the flexible post 43's that resets effect, thereby increase the shaping effect of screen panel.
The side that the ring 41 that buckles correspond stripper plate 3 on be provided with shape groove 46 along its circumference equidistant, install laminating briquetting 48 through design spring 47 on the inner wall of shape groove 46, laminating briquetting 48 will be able to buckle the screen panel that is located the support frame 2 outside along the structure of the arc chamfer of support frame 2, prevent that the screen panel from buckling the back and forming sharp-pointed form.
Laminating briquetting 48 is located the one end in the fixed slot 46 outside and is the arc structure, it is cyclic annular to form between the arc structure of laminating briquetting 48, the terminal surface of laminating briquetting 48 arc structure is provided with the flexible pad, and the lower extreme of laminating briquetting 48 arc structure is provided with the chamfer, the arc structure of laminating briquetting 48 can be buckled into vertical form with the lower extreme of screen panel, the arc chamfer of laminating briquetting 48 can prevent that it from damaging the screen panel, the annular structure that laminating briquetting 48 is constituteed can prevent the iron wire card of screen panel between laminating briquetting 48, when laminating briquetting 48 contracts, the flexible pad at laminating briquetting 48 both ends can take place deformation automatically, so that the shrink that laminating briquetting 48 can be smooth and easy.
The straightening mechanism 5 comprises a clamping and pressing ring 51 arranged on the outer side of the supporting telescopic column 21, a supporting ring 52 is arranged on the outer side of the clamping and pressing ring 51, the axial lead of the clamping and pressing ring 51 and the axial lead of the supporting ring 52 correspond to the axial lead of the supporting bracket 2, the inner diameter of the supporting ring 52 corresponds to the inner diameter of the bending ring 41, telescopic grooves 53 are uniformly formed in the side surface of the clamping and pressing ring 51 corresponding to the supporting ring 52 along the circumferential direction of the side surface, straightening press blocks 55 are mounted on the inner wall of the telescopic grooves 53 through telescopic springs 54, one end, located in the telescopic grooves 53, of each straightening press block 55 is of a square structure, the other end of each straightening press block 55 is of an arc structure, a return column 56 is arranged on the side surface, far away from the supporting ring 52, of the upper end of; when the straightening press block 55 is in an extending state, an annular structure can be formed by combining the straightening press blocks 55, the annular structure formed by the straightening press blocks 55 can prevent iron wires of the mesh enclosure from being incapable of straightening, during specific work, the straightening mechanism 5 can straighten the iron wires in a vertical state after the mesh enclosure is bent, and is convenient for subsequent processing and processing of the mesh enclosure, when the mesh enclosure is bent and continues to move downwards, the bent part at the outer end of the mesh enclosure can move to a position between the clamping press ring 51 and the support ring 52, the straightening press block 55 can extrude the vertical part of the mesh enclosure under the action of the telescopic spring 54, and when the mesh enclosure moves upwards, the vertical part of the straightening press block 55 can be straightened.
The bottom plate 1 is uniformly provided with U-shaped grooves 11, the positions of the U-shaped grooves 11 correspond to the positions of the telescopic grooves 53 one by one, one ends of the U-shaped grooves 11 penetrate through the clamping ring 51 and are communicated with the telescopic grooves 53, the other ends of the U-shaped grooves 11 are positioned on the inner side of the clamping ring 51, positioning frames 13 are installed in the U-shaped grooves 11 through positioning springs 12, the positioning frames 13 are of U-shaped structures, and two ends of each positioning frame 13 penetrate through the U-shaped grooves 11; the lower side surface of the support bracket 2 is provided with unlocking columns 23, the positions of the unlocking columns 23 correspond to the position of one end of the positioning frame 13, which is positioned at the inner side of the clamping ring 51, one by one, the straightening press block 55 can be in a contracted state under the positioning action of the positioning frame 13, so that the vertical part of the mesh enclosure can smoothly move between the clamping ring 51 and the support ring 52, when the mesh enclosure continuously moves downwards and the bearing telescopic column 21 is completely contracted, the unlocking column 23 can press down the inner end of the positioning frame 13, so that the straightening press block 55 is outwards popped out under the restoring force of the telescopic spring 54, so that the arc structure of the straightening press block 55 extrudes the vertical section of the mesh enclosure on the inner wall of the support ring 52, and then the hydraulic cylinder 44 is controlled to perform contraction movement, the vertical part of the mesh enclosure can be straightened under the action of the straightening press block 55, the straightening press block 55 is in a contracted state when the mesh enclosure moves downwards, when the mesh enclosure moves to the lowest position, the straightening press block 55 pops up, and the mode can prevent the vertical section of the mesh enclosure from abutting against the straightening press block 55 to cause the deformation of the vertical part of the mesh enclosure.
Telescopic slot 53 and the briquetting 55 of flare-outing between be provided with looks sliding fit's square chute and square slider respectively, the corresponding position of one end that the briquetting 55 of flare-outing and locating rack 13 are located telescopic slot 53 is provided with constant head tank 57, the one end that locating rack 13 is located telescopic slot 53 is the trapezium structure, and the trapezium structure of locating rack 13 is located constant head tank 57, square chute and square slider cooperate and to increase the smooth and easy low of flare-outing briquetting 55 removal in telescopic slot 53, the trapezium structure locking through locating rack 13 can be spacing with the initial position of the briquetting 55 of flare-outing in constant head tank 57, the vertical part of the screen panel of being convenient for can be smooth and easy moves down.
A trapezoidal groove 58 is formed in the middle of the return column 56, the side surface of the trapezoidal groove 58, which is far away from the straightening press block 55, is an inclined surface, a triangular convex block is arranged on the side surface of the lower end of the unlocking column 23, which corresponds to the inclined surface of the trapezoidal groove 58, and the inclined surface of the triangular convex block is matched with the inclined surface of the trapezoidal groove 58; the expanding spring 54 be compression spring, when straightening briquetting 55 is in the shrink state, unblock post 23 can be smooth and easy pass dovetail groove 58, when the unblock post 23 drives straightening briquetting 55 and pops out and upwards along with supporting bracket 2, the triangle-shaped lug of supporting bracket 2 cooperatees with the inclined plane of dovetail groove 58 and makes return post 56 inwards move, the inwards movement of return post 56 can drive straightening briquetting 55 and reply initial position, can drive its automatic shrink when straightening briquetting 55 and the trapezium structure of locating rack 13, so that locating rack 13 can lock straightening briquetting 55 again, thereby the vertical part of screen panel need not manual control when the operation of straightening.
When the mesh enclosure extrusion device works, firstly, the downward pressing mechanism 4 can be installed on an external support frame through the locking support plate 45, so that the axial leads of the support frame 2 and the extrusion plate 3 correspond to each other, then, a mesh enclosure is placed on the placing body 26, the placing body 26 with the conical structure can limit the mesh enclosure, then, the extrusion plate 3 can be driven to synchronously move downwards through the extension motion of the hydraulic cylinder 44, before the mesh enclosure is extruded, the annular pressing sleeve 32 can firstly press the middle part of the mesh enclosure, so that the mesh enclosure cannot deflect and displace, the downward pressing body 31 can downwards press the placing body 26 for a certain distance, and the mesh enclosure is prevented from deforming due to the fact that the upward jacking force is generated by the placing body 26 when the mesh enclosure is molded and extruded;
when the hydraulic cylinder 44 continues to extend, the support bracket 2 and the extrusion plate 3 are matched to perform molding extrusion on the middle part of the mesh enclosure, when the hydraulic cylinder 44 continues to extend, the reset telescopic column 43 can contract, at the moment, the laminating pressing block 48 can bend the mesh enclosure positioned on the outer side of the support bracket 2 along the arc-shaped chamfer structure of the support bracket 2, the mesh enclosure is prevented from being formed into a sharp shape after being bent, when the laminating pressing block 48 contracts, the flexible pads at two ends of the laminating pressing block 48 can be automatically deformed, so that the laminating pressing block 48 can smoothly contract, the arc-shaped structure of the laminating pressing block 48 can bend the lower end of the mesh enclosure into a vertical shape, and when the reset telescopic column 43 is in a completely contracted state, the mesh enclosure is extruded;
the hydraulic cylinder 44 is continuously controlled to extend, the supporting telescopic column 21 can contract in a matching manner, the straightening press block 55 can be in a contracted state under the positioning action of the positioning frame 13, so that the vertical part of the mesh enclosure smoothly moves between the clamping and pressing ring 51 and the supporting ring 52, when the supporting telescopic column 21 is completely contracted, the unlocking column 23 can press down the inner end of the positioning frame 13, the straightening press block 55 is outwards popped out under the restoring force action of the telescopic spring 54, so that the arc-shaped structure of the straightening press block 55 extrudes the vertical section of the mesh enclosure on the inner wall of the supporting ring 52, then the hydraulic cylinder 44 is controlled to contract, the vertical part of the mesh enclosure can be straightened under the extrusion of the straightening press block 55, the vertical part of the mesh enclosure is straightened, the straightening press block 55 and the trapezoid structure of the positioning frame 13 can be driven to contract automatically, so that the positioning frame 13 can lock the straightening press block 55 again, thereby the vertical part of screen panel need not manual control when the operation of flare-outing.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides an electric fan screen panel makes bending forming device, includes bottom plate (1), support frame (2), stripper plate (3), pushes down mechanism (4) and straightens mechanism (5), its characterized in that: the support bracket (2) is distributed above the middle part of the bottom plate (1), the lower end of the support bracket (2) is installed on the top of the bottom plate (1) through a support telescopic column (21), the extrusion plate (3) is positioned right above the support bracket (2), the extrusion plate (3) is installed on the pressing mechanism (4), the straightening mechanism (5) is positioned on the outer side of the support telescopic column (21), and the straightening mechanism (5) is installed on the bottom plate (1); wherein:
the supporting bracket (2) and the extrusion plate (3) are both of coaxially arranged disc-shaped structures, the upper side surface of the middle part of the supporting bracket (2) is provided with an annular chute (22), and the lower side surface of the extrusion plate (3) is provided with an annular bulge matched with the chute (22);
the pressing mechanism (4) comprises a bending ring (41) arranged on the outer side of the extrusion plate (3), the inner diameter of the bending ring (41) is larger than the outer diameter of the support bracket (2), a connecting frame (42) is arranged at the top of the bending ring (41), the section of the connecting frame (42) is of an inverted U-shaped structure, reset telescopic columns (43) are symmetrically arranged between the lower side surface of the middle of the connecting frame (42) and the top of the extrusion plate (3), and a locking support plate (45) is arranged on the upper side surface of the connecting frame (42) through a hydraulic cylinder (44);
the straightening mechanism (5) comprises a clamping and pressing ring (51) arranged on the outer side of the supporting telescopic column (21), a supporting ring (52) is arranged on the outer side of the clamping and pressing ring (51), the axial lead of the clamping and pressing ring (51), the axial lead of the support ring (52) corresponds to the axial lead of the support bracket (2), the inner diameter of the support ring (52) corresponds to the inner diameter of the bending ring (41), the side face, corresponding to the support ring (52), of the clamping ring (51) is uniformly provided with telescopic grooves (53) along the circumferential direction of the side face, corresponding to the support ring (52), of the clamping ring, straightening press blocks (55) are installed on the inner walls of the telescopic grooves (53) through telescopic springs (54), one ends, located in the telescopic grooves (53), of the straightening press blocks (55) are of square structures, the other ends of the straightening press blocks (55) are of arc structures, return columns (56) are arranged on the side faces, far away from the support ring (52), of the upper ends of the straightening press blocks (55), and the return columns;
the positioning device is characterized in that U-shaped grooves (11) are uniformly formed in the bottom plate (1), the positions of the U-shaped grooves (11) correspond to the positions of the telescopic grooves (53) one by one, one ends of the U-shaped grooves (11) penetrate through the clamping rings (51) and are communicated with the telescopic grooves (53), the other ends of the U-shaped grooves (11) are located on the inner sides of the clamping rings (51), positioning frames (13) are installed in the U-shaped grooves (11) through positioning springs (12), the positioning frames (13) are of U-shaped structures, and two ends of each positioning frame (13) penetrate through the U-shaped grooves (11);
the lower side surface of the support bracket (2) is provided with unlocking columns (23), and the positions of the unlocking columns (23) correspond to the positions of one ends, located on the inner side of the clamping rings (51), of the positioning frames (13) one by one.
2. The bending and forming device for manufacturing the electric fan guard as claimed in claim 1, wherein: the telescopic groove (53) and the straightening press block (55) are respectively provided with a square sliding groove and a square sliding block which are in sliding fit with each other, the straightening press block (55) and the positioning frame (13) are provided with positioning grooves (57) at positions corresponding to one ends of the telescopic groove (53), one ends of the positioning frame (13) located in the telescopic groove (53) are of a trapezoidal structure, and the trapezoidal structure of the positioning frame (13) is located in the positioning grooves (57).
3. The bending and forming device for manufacturing the electric fan guard as claimed in claim 1, wherein: a trapezoidal groove (58) is formed in the middle of the return column (56), the side face, away from the straightening press block (55), of the trapezoidal groove (58) is an inclined face, a triangular bump is arranged on the side face, corresponding to the inclined face of the trapezoidal groove (58), of the lower end of the unlocking column (23), and the inclined face of the triangular bump is matched with the inclined face of the trapezoidal groove (58); the extension spring (54) is a compression spring.
4. The bending and forming device for manufacturing the electric fan guard as claimed in claim 1, wherein: the telescopic force of the supporting telescopic column (21) is greater than that of the resetting telescopic column (43).
5. The bending and forming device for manufacturing the electric fan guard as claimed in claim 1, wherein: support bracket (2) the side middle part of going up be provided with and take hole (24), take and be provided with in the hole (24) coaxial and take and put post (25), the lower extreme of taking and putting post (25) is extending structure, the upper end of taking and putting post (25) is provided with the body (26) of taking of conical structure, it is located support bracket (2) top to take body (26), the distance of taking the side to support bracket (2) on putting body (26) is less than the length of taking and putting the flexible end of post (25).
6. The bending and forming device for manufacturing the electric fan guard as claimed in claim 5, wherein: the middle lower side surface of the extrusion plate (3) is provided with a pressing body (31), the outer side of the pressing body (31) is provided with an annular pressing sleeve (32), the position of the extrusion plate (3) corresponding to the annular pressing sleeve (32) is provided with an annular groove (33), and the upper end of the annular pressing sleeve (32) is installed on the upper side wall of the annular groove (33) through a pressing spring (34).
7. The bending and forming device for manufacturing the electric fan guard as claimed in claim 6, wherein: the inner diameter of the annular pressing sleeve (32) is larger than the outer diameter of the placing body (26), and the axial lead of the annular pressing sleeve (32) corresponds to the axial lead of the placing body (26).
8. The bending and forming device for manufacturing the electric fan guard as claimed in claim 1, wherein: the side of the bending ring (41) corresponding to the extrusion plate (3) is provided with fixing grooves (46) at equal intervals along the circumferential direction, and the inner wall of each fixing groove (46) is provided with a bonding pressing block (48) through a fixing spring (47).
9. The bending and forming device for manufacturing the electric fan guard as claimed in claim 8, wherein: laminating briquetting (48) be located the one end in the fixed slot (46) outside and be the arc structure, it is cyclic annular to make up between the arc structure of laminating briquetting (48), the terminal surface of laminating briquetting (48) arc structure is provided with flexible pad, and the lower extreme of laminating briquetting (48) arc structure is provided with the chamfer.
CN202110160691.1A 2021-02-05 2021-02-05 Bending forming device for manufacturing electric fan mesh enclosure Active CN112893563B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203917644U (en) * 2014-07-17 2014-11-05 瑞安市作权冲压件有限公司 A kind of fan case diel
WO2017129170A1 (en) * 2016-01-27 2017-08-03 Uwe Stadtmüller Device for transferring at least one ring into a holding device, holding device for at least one ring to be secured to at least one strut, and method for positioning at least one ring on at least one strut
CN207681365U (en) * 2018-01-13 2018-08-03 佛山市顺德区赵氏机械设备有限公司 A kind of fan screen former
CN207787479U (en) * 2018-01-11 2018-08-31 大连诚和精密工业有限公司 Sheet metal component right-angle bending mold
CN109967584A (en) * 2019-05-06 2019-07-05 吉林工程技术师范学院 A kind of bend molding apparatus for sheet metal production
CN111515506A (en) * 2020-05-07 2020-08-11 罗峰 Automatic welding equipment for industrial fan mesh enclosure
CN111842707A (en) * 2020-07-27 2020-10-30 江西红日变电设备有限公司 Open-arm type lead bending device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203917644U (en) * 2014-07-17 2014-11-05 瑞安市作权冲压件有限公司 A kind of fan case diel
WO2017129170A1 (en) * 2016-01-27 2017-08-03 Uwe Stadtmüller Device for transferring at least one ring into a holding device, holding device for at least one ring to be secured to at least one strut, and method for positioning at least one ring on at least one strut
CN207787479U (en) * 2018-01-11 2018-08-31 大连诚和精密工业有限公司 Sheet metal component right-angle bending mold
CN207681365U (en) * 2018-01-13 2018-08-03 佛山市顺德区赵氏机械设备有限公司 A kind of fan screen former
CN109967584A (en) * 2019-05-06 2019-07-05 吉林工程技术师范学院 A kind of bend molding apparatus for sheet metal production
CN111515506A (en) * 2020-05-07 2020-08-11 罗峰 Automatic welding equipment for industrial fan mesh enclosure
CN111842707A (en) * 2020-07-27 2020-10-30 江西红日变电设备有限公司 Open-arm type lead bending device

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