CN112893563B - Bending forming device for manufacturing electric fan mesh enclosure - Google Patents
Bending forming device for manufacturing electric fan mesh enclosure Download PDFInfo
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- CN112893563B CN112893563B CN202110160691.1A CN202110160691A CN112893563B CN 112893563 B CN112893563 B CN 112893563B CN 202110160691 A CN202110160691 A CN 202110160691A CN 112893563 B CN112893563 B CN 112893563B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending 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
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending 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
- B21D11/22—Auxiliary equipment, e.g. positioning devices
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- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Press Drives And Press Lines (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 of the mesh enclosure needs to be extruded at first, and then the vertical part of 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
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 an electric 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 touching fan blades by human bodies.
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 problems, the invention provides a bending forming device for manufacturing a mesh enclosure of an electric fan, which comprises a base plate, a support bracket, an extrusion plate, a pressing mechanism and a straightening mechanism, wherein the support bracket is distributed above the middle part of the base plate, the lower end of the support bracket is arranged on the top of the base plate through a support telescopic column, the extrusion plate is positioned right above the support bracket, the extrusion plate is arranged on the pressing mechanism, the pressing mechanism is arranged on an external support frame, the straightening mechanism is positioned on the outer side of the support telescopic column, and the straightening mechanism is arranged on the base plate.
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 mechanism of pushing down including setting up the bending ring in the stripper plate outside, the internal diameter of bending ring is greater than the external diameter of support bracket, the top of bending ring is provided with the link, the cross-section of link is handstand U type structure, the symmetry is provided with the flexible post that resets between the middle part downside of link and the top of stripper plate, the side of going up of link installs the locking extension board through the pneumatic cylinder, the flexible power of the flexible post of bearing is greater than the flexible power of the flexible post that resets, this kind of setting makes the flexible post that supports after the flexible post that resets shrink finishes shrink and then contracts, in the concrete during operation, the mechanism of pushing down can install on the support frame outside through the locking extension board, make the support bracket, the axial lead of stripper plate is corresponding, can drive stripper plate synchronous downstream through the extension motion of pneumatic cylinder, make the support bracket, the stripper plate cooperate and carry out the shaping extrusion with the middle part of screen panel, the pneumatic cylinder continues when extending, the flexible post that resets can contract, make the bending ring can buckle the iron wire that lies in the support bracket outside downwards, after the ring is accomplished the iron wire bending motion of pneumatic cylinder can drive the flexible post and take place the shrink, thereby the flexible effect that restores to increase the shaping screen panel that restores to keep warm under the effect.
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 support 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 pressing blocks are installed on the inner wall of the telescopic grooves through telescopic springs, one ends, located in the telescopic grooves, of the straightening pressing blocks are of square structures, the other ends of the straightening pressing blocks are of arc structures, a return column is arranged on the side face, far away from the support ring, of the upper ends of the straightening pressing blocks, and the return column penetrates through the clamping and pressing ring; 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 effect of the briquetting of flare-outing.
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 on the inner side of the clamping ring, one by one, and the straightening pressing block can be in a contracted state under the positioning action of the positioning frame, so that the vertical part of the mesh enclosure can smoothly move between the clamping ring and the support ring.
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 when being in the contraction state, the trapezoidal slot that passes that the unblock post can be smooth and easy, when the unblock post drives the briquetting that straightens and pops out and upwards along with the support bracket, the triangle-shaped lug of support bracket cooperatees with the inclined plane in trapezoidal slot and makes return post inwards move, the inside removal of return post can drive the briquetting that straightens and reply initial position, can drive its automatic retraction during the trapezium structure of the briquetting of straightening and locating rack, so that the locating rack can lock the briquetting that straightens again, thereby the vertical part of screen panel need not manual control when the operation of straightening.
As a preferred technical scheme of the invention, the middle part of the upper side face of the supporting bracket is provided with a placing hole, a placing column is coaxially arranged in the placing hole, the lower end of the placing column is of a telescopic structure, the upper end of the placing column is provided with a placing body of a conical structure, the placing body is positioned above the supporting bracket, the distance from the upper side face of the placing body to the supporting bracket is smaller than the length of the telescopic end of the placing column, the placing body can completely move into the placing hole due to the arrangement, a mesh enclosure can be initially placed on the placing body, the placing 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 placing column can automatically contract, and the placing body can move into the placing hole, so that the placing 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 of the mesh enclosure.
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 cover 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, so that the laminating pressing block can smoothly shrink.
The invention has the beneficial effects that:
1. the invention can carry out forming extrusion operation on the electric fan mesh enclosure and straightens the vertical part at the outer end of the mesh enclosure, thereby completing the forming operation of the fan mesh enclosure at one time;
2. 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;
3. 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;
4. 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 being changed when the mesh enclosure is extruded, and the forming effect of the mesh enclosure is poor;
5. the attaching pressing block can bend the mesh enclosure positioned on the outer side of the bearing bracket along the arc-shaped chamfer structure of the bearing bracket, so that the mesh enclosure is prevented from being formed into a sharp shape after being bent.
Drawings
The present invention will be further described with reference to the 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 isbase:Sub>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, connecting frame, return telescoping post, base plate, support bracket and stripper plate;
FIG. 5 is a schematic view of the structure of the base 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, in the present application, the embodiments and features of the embodiments 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, an extrusion plate 3, a pressing mechanism 4 and a straightening mechanism 5, wherein the support bracket 2 is distributed above the middle part of the base plate 1, the lower end of the support bracket 2 is installed on the top of the base 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 pressing mechanism 4 is installed on an external support frame, 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 base plate 1.
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.
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 accuracy of the mesh cover can be improved.
The pressing mechanism 4 include the ring 41 of buckling that sets up in the stripper plate 3 outside, the internal diameter of the ring 41 of buckling is greater than the external diameter of support bracket 2, the top of the ring 41 of buckling is provided with the link 42, the cross-section of link 42 is inverted U type structure, the symmetry is provided with the flexible post 43 that resets between the middle part downside of link 42 and the top of stripper plate 3, the side of going up of link 42 installs locking extension board 45 through pneumatic cylinder 44, the concertina power of flexible post 21 that supports is greater than the concertina power of the flexible post 43 that resets, this kind of setting makes the flexible post 21 that supports after the flexible post 43 that resets shrink, when concrete work, pressing mechanism 4 can install on the support frame of outside through locking extension board 45, make support bracket 2, the axial lead of stripper plate 3 is corresponding, can drive stripper plate 3 synchronous downstream through the extension motion of pneumatic cylinder 44, make support bracket 2, stripper plate 3 cooperate and carry out the shaping extrusion with the middle part of screen panel, pneumatic cylinder 44 continues when extending, the flexible post 43 that resets can shrink, make the flexible post 41 of supporting bracket 2, make the flexible post 41 of bending can drive the flexible post 21 that supports the flexible post that bends and carry out the extension after the extension motion of bending, thereby the flexible post that supports the extension of bending and the flexible post 21 that supports the extension effect that the extension takes place.
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.
The one end that laminating briquetting 48 is located the fixed slot 46 outside 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 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 is shrunk, the flexible pad at laminating briquetting 48 both ends can take place deformation voluntarily, 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 each straightening press block 55, and the return column 56 penetrates through the clamping and pressing ring 51; 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, so that the mesh enclosure can be conveniently processed, 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 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 under the action of the straightening press block 55.
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 arranged 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 positions of one ends of the positioning frames 13, which are positioned on the inner sides of the clamping rings 51, one to one, and the straightening press blocks 55 can be in a contracted state under the positioning action of the positioning frames 13, so that the vertical parts of the mesh enclosure can smoothly move between the clamping rings 51 and the support rings 52, when the mesh enclosure continues to move downwards and the bearing telescopic columns 21 are completely contracted, the unlocking columns 23 can press the inner ends of the positioning frames 13, so that the straightening press blocks 55 are outwards popped out under the restoring force of the telescopic springs 54, so that the arc-shaped structures of the straightening press blocks 55 extrude the vertical sections of the mesh enclosure on the inner walls of the support rings 52, and then the hydraulic cylinders 44 are controlled to perform contraction movement, and the vertical parts of the mesh enclosure can be straightened under the action of the straightening press blocks 55.
A trapezoidal groove 58 is formed in the middle of the return column 56, the side surface of the trapezoidal groove 58 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 corresponding 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 extension spring 54 is a compression spring, when the straightening press block 55 is in a contraction state, the unlocking column 23 can smoothly penetrate through the trapezoidal groove 58, when the unlocking column 23 drives the straightening press block 55 to pop out and upwards along with the support bracket 2, the triangular convex block of the support bracket 2 is matched with the inclined plane of the trapezoidal groove 58 to enable the return column 56 to move inwards, the inward movement of the return column 56 can drive the straightening press block 55 to return to an initial position, and the straightening press block 55 and the trapezoidal structure of the positioning frame 13 can drive the positioning frame 13 to automatically contract so that the positioning frame 13 can lock the straightening press block 55 again, and therefore the vertical part of the mesh cover does not need manual control during straightening operation.
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 form and extrude 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 sharp 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;
continuing to control the hydraulic cylinder 44 to extend, the supporting telescopic column 21 can contract in a matching manner, and as the straightening press block 55 can be in a contracted state under the positioning action of the positioning frame 13, the vertical part of the mesh enclosure can smoothly move between the clamping press 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, so that 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, and 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, so that the vertical part of the mesh enclosure can be straightened, the straightening press block 55 and the trapezoid structure of the positioning frame 13 can drive the straightening press block 55 to automatically contract, so that the positioning frame 13 can lock the straightening press block 55 again, and the vertical part of the mesh enclosure does not need to be manually controlled when being straightened.
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 (6)
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 part 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 bearing telescopic column (21), a support 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 support ring (52) correspond 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), telescopic grooves (53) are uniformly formed in the side face, corresponding to the support ring (52), of the clamping and pressing ring (51) along the circumferential direction of the clamping and pressing ring, a straightening pressing block (55) is installed on the inner wall of each telescopic groove (53) through a telescopic spring (54), one end, located in each telescopic groove (53), of each straightening pressing block (55) is of a square structure, the other end of each straightening pressing block (55) is of an arc structure, a return column (56) is arranged on the side face, far away from the support ring (52), of the upper end of each straightening pressing block (55), and the return column (56) penetrates through the clamping and pressing ring (51);
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 end of each U-shaped groove (11) penetrates through the clamping ring (51) and is communicated with the telescopic grooves (53), the other end of each U-shaped groove (11) is located on the inner side of the clamping ring (51), a positioning frame (13) is installed in each U-shaped groove (11) through a positioning spring (12), each positioning frame (13) is of a U-shaped structure, and two ends of each positioning frame (13) penetrate through the corresponding U-shaped groove (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 end, located on the inner side of the clamping ring (51), of the positioning frame (13) one by one;
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;
a lower pressing body (31) is arranged on the lower side surface of the middle part of the extrusion plate (3), an annular pressing sleeve (32) is arranged on the outer side of the lower pressing body (31), an annular groove (33) is formed in the position, corresponding to the annular pressing sleeve (32), of the extrusion plate (3), and the upper end of the annular pressing sleeve (32) is installed on the upper side wall of the annular groove (33) through a lower pressing spring (34);
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).
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: the telescopic force of the bearing telescopic column (21) is greater than that of the resetting telescopic column (43).
4. The bending and forming device for manufacturing the electric fan guard as claimed in claim 1, wherein: the upper side face middle part of the support bracket (2) is provided with a placing hole (24), a placing column (25) is coaxially arranged in the placing hole (24), the lower end of the placing column (25) is of a telescopic structure, the upper end of the placing column (25) is provided with a placing body (26) of a conical structure, the placing body (26) is located above the support bracket (2), and the distance from the upper side face of the placing body (26) to the support bracket (2) is smaller than the length of the telescopic end of the placing column (25).
5. The bending and forming device for manufacturing the electric fan guard as claimed in claim 1, wherein: the side face, corresponding to the extrusion plate (3), of the bending ring (41) 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).
6. The bending and forming device for manufacturing the electric fan guard as claimed in claim 5, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110160691.1A CN112893563B (en) | 2021-02-05 | 2021-02-05 | Bending forming device for manufacturing electric fan mesh enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110160691.1A CN112893563B (en) | 2021-02-05 | 2021-02-05 | Bending forming device for manufacturing electric fan mesh enclosure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112893563A CN112893563A (en) | 2021-06-04 |
| CN112893563B true CN112893563B (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110160691.1A Active CN112893563B (en) | 2021-02-05 | 2021-02-05 | Bending forming device for manufacturing electric fan mesh enclosure |
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Family Cites Families (7)
| 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 |
| DE102016001043B3 (en) * | 2016-01-27 | 2017-02-09 | Uwe Stadtmüller | Device for transferring at least one ring into a holding device; Holding device for at least one ring to be fixed to at least one strut; 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 |
| CN109967584B (en) * | 2019-05-06 | 2020-03-06 | 吉林工程技术师范学院 | Bending forming device for manufacturing metal plates |
| CN111515506A (en) * | 2020-05-07 | 2020-08-11 | 罗峰 | Automatic welding equipment for industrial fan mesh enclosure |
| CN111842707B (en) * | 2020-07-27 | 2022-02-15 | 江西红日变电设备有限公司 | Open-arm type lead bending device |
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Effective date of registration: 20221202 Address after: 529738 Xialiu Industrial Zone, Gulao Town, Heshan City, Jiangmen City, Guangdong Province Applicant after: HESHAN G&Y ELECTRICAL INDUSTRIES Co.,Ltd. Address before: 321032 NO.119 Tangjing Road, Tanger village, Tangya Town, Jindong District, Jinhua City, Zhejiang Province Applicant before: Wang Xiaoting |
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Denomination of invention: A bending and forming device for manufacturing electric fan mesh cover Effective date of registration: 20230331 Granted publication date: 20221223 Pledgee: Industrial and Commercial Bank of China Limited Heshan Sub branch Pledgor: HESHAN G&Y ELECTRICAL INDUSTRIES Co.,Ltd. Registration number: Y2023980037025 |