CN216728925U - Cutting and bending device of multi-impeller blade forming machine of fire-fighting smoke exhaust fan - Google Patents
Cutting and bending device of multi-impeller blade forming machine of fire-fighting smoke exhaust fan Download PDFInfo
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- CN216728925U CN216728925U CN202220342060.1U CN202220342060U CN216728925U CN 216728925 U CN216728925 U CN 216728925U CN 202220342060 U CN202220342060 U CN 202220342060U CN 216728925 U CN216728925 U CN 216728925U
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Abstract
The utility model discloses a cutting and bending device of a multi-impeller blade forming machine of a fire-fighting smoke exhaust fan, which comprises a cutting and bending support, a first stamping oil press and a second stamping oil press, wherein the first stamping oil press is fixed at the top of the cutting and bending support, the second stamping oil press is fixed at the bottom of the cutting and bending support, the free end of a first piston rod of the first stamping oil press is connected with a punching cutter and a bending female die block, the free end of a second piston rod of the second stamping oil press is connected with a bending male die block, a rectangular through hole matched with the shape and the size of the punching cutter is arranged in the middle of the length of the bending male die block, and the punching cutter, the bending female die block and the bending male die block move oppositely to be mutually occluded to cut an arc blade body and bend two lug plates. Can be at the strap behind the through-hole for the pre-punching breach and the bolt of wearing, roll forming goes out width direction's arcwall face earlier, bends to the otic placode again to guarantee the cambered surface precision and avoid back punching press arcwall face and produce the injury to the junction of otic placode and arc blade body, and improve machining efficiency, reduce the processing cost.
Description
Technical Field
The utility model relates to the technical field of manufacturing of fire-fighting smoke exhaust fans, in particular to a cutting and bending device of a multi-impeller blade forming machine of a fire-fighting smoke exhaust fan.
Background
Along with the enhancement of people's fire safety consciousness, the application of fire control smoke exhaust fan in the building engineering is more and more extensive. The fire control smoke exhaust fan of prior art's kind is more, and the structure is different.
A fire-fighting smoke exhaust fan as in the prior art comprises a supporting frame, an actuating mechanism and a multi-impeller, wherein the multi-impeller is composed of two end plates and a plurality of blades which are uniformly distributed along the circumference and are screwed with the two end plates through screws. Every blade includes the arc blade body that extends along width direction, and the overlooking shape of the arc blade body is the rectangle, and there are two otic placodes of symmetry at rectangular both ends, and every otic placode is 90 contained angles with the indent arcwall face of the arc blade body, has one or more through-holes for the screw of wearing on every otic placode, and two otic placodes with one end amputated a geometry piece and constitute the corner cut breach, the otic placode is close to the one end of breach and is the hypotenuse.
The processing method of the multi-impeller blade of the fire-fighting smoke exhaust fan comprises the steps of blanking a metal belt to be coiled into a plurality of rectangular metal sheets with a certain length, punching one or more through holes at two ends of each rectangular metal sheet and punching off a geometric sheet to enable two ends to be lug plates, and punching and folding the two lug plates into the rectangular metal sheets with 90 degrees
And (5) forming an included angle, and finally stamping the rectangular metal sheet into an arc shape along the width direction by adopting a concave-convex die. The processing method in the prior art has the advantages that two processes and two sets of dies are needed for cutting and bending, the processing efficiency is relatively low, the processing labor cost and the equipment cost are relatively high, and the processing method in the prior art has the obvious defect that the lug plate with the bent lug plate is stamped into an arc shape along the width direction, so that the accuracy of the arc surface is influenced, and the joint of the lug plate and the arc-shaped blade body is easily damaged, so that the quality of a finished product of the blade is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a cutting and bending device of a multi-impeller blade forming machine of a fire-fighting smoke exhaust fan, which can firstly roll and form an arc-shaped surface in the width direction after a metal belt is pre-punched with a notch and a through hole for penetrating a bolt, then cut and simultaneously bend an ear plate so as to ensure the accuracy of the arc-shaped surface, avoid the damage to the joint of the ear plate and an arc-shaped blade body caused by punching the arc-shaped surface later, improve the processing efficiency and reduce the processing cost.
The utility model provides a cutting and bending device of a multi-impeller blade forming machine of a fire-fighting smoke exhaust fan, which comprises a cutting and bending support, a first stamping oil press fixed at the top of the cutting and bending support and a second stamping oil press fixed at the bottom of the cutting and bending support, wherein the free end of a first piston rod of the first stamping oil press is connected with a cutting knife and a bending female die block, the free end of a second piston rod of the second stamping oil press is connected with a bending male die block, a rectangular through hole matched with the shape and the size of the cutting knife is arranged in the middle of the length of the bending male die block, and the cutting knife, the bending female die block and the bending male die block move oppositely to be mutually occluded to cut an arc-shaped blade body and bend two lug plates.
After adopting the structure, the cutting and bending device of the multi-impeller blade forming machine of the fire-fighting smoke exhaust fan has the following advantages: can be in the process of before behind the metal strap pre-punching breach and the through-hole for the bolt of wearing, roll forming goes out the arcwall face of width direction earlier, cuts off and bends the otic placode from the centre with the connection piece of U font breach 32 department again, and cut off and bend one step of process and go on simultaneously, improved machining efficiency, reduced the cost of labor and the mould cost of processing. Compared with the lug plate bending mechanism and the equipment for punching the arc-shaped surface again after the lug plate is bent in the prior art, the punching cutter, the bending female module and the bending male module of the cutting and bending device move oppositely to be mutually occluded to cut off the blade and bend the two lug plates, the structure is simple, the force application is reasonable, the mechanical property is good, the shaping of the formed arc-shaped surface is ensured, the accuracy that the lug plate and the concave arc-shaped surface of the arc-shaped blade body form a 90-degree included angle is ensured, and the damage to the joint of the lug plate and the arc-shaped blade body in the bending process can be avoided.
Furthermore, a first stamping plate is fixed at the free end of a first piston rod of the first stamping oil press, and the stamping knife and a pair of bending female die blocks positioned at two sides of the stamping knife are fixed at the bottom of the first stamping plate. After the structure is adopted, the punching cutter and the bending female module are connected with the free end of the first piston rod through the first punching plate, the structure is firmer, the balance of the cutting and bending processes is better, and the inertia force and the impact force for cutting and bending are stronger.
Furthermore, the first stamping plate is provided with four through holes which are in one-to-one corresponding sliding fit with the four guide rods of the cutting and bending support and are guided in an up-and-down sliding mode. After the structure more than adopting, first punching press board slides the direction from top to bottom along four guide bars, makes to cut off the process of bending more smoothly, more steady, cuts off and bend the dynamics stronger, and the effect is better.
Furthermore, a second stamping plate is fixed at the free end of a second piston rod of the second stamping oil press, and the bending male module is fixed at the top of the second stamping plate. After the structure is adopted, the bending male module is connected with the free end of the second piston rod through the second stamping plate, the structure is firmer, the balance of the cutting and bending processes is better, and the inertia force and the impact force for cutting and bending are stronger.
Furthermore, the length of the bending male module is shorter than the distance between the two bending female modules, after the bending male module and the bending female modules are engaged oppositely, the gap between the left end of the bending male module and the inner edge of the left bending female module is equal to or larger than the thickness of one lug plate, and the gap between the right end of the bending male module and the inner edge of the right bending female module is also equal to or larger than the thickness of one lug plate. After the structure more than adopting, the female module of bending is better with the adaptation nature of the public module of bending, can cut off fast and bend, has further guaranteed again that fashioned arcwall face design nature and otic placode and the accuracy that is 90 contained angles with the indent arcwall face of the arc blade body, has further avoided the damage of the process of bending to the junction of otic placode and arc blade body.
Drawings
Fig. 1 is a schematic perspective view of a prior art multiple impeller blade.
Fig. 2 is a schematic perspective view of a prior art multiple impeller blade.
Fig. 3 is a schematic perspective view of a rolling press device applied to a fire-fighting smoke exhaust fan multi-impeller blade forming machine.
Fig. 4 is a schematic structural view of a cutting and bending device of a multi-impeller blade forming machine of a fire-fighting smoke exhaust fan.
Fig. 5 is an enlarged schematic view of a in fig. 4.
FIG. 6 is a schematic top view of a metal strip as it is being formed on a multiple impeller blade forming machine until it is cut.
Fig. 7 is an enlarged structural view of B in fig. 6.
Fig. 8 is an enlarged structural view of C in fig. 6.
Shown in the figure: 1. the device comprises an inner concave arc-shaped surface, 2, bevel edges, 3, corner cut notches, 4, a through hole for passing a screw, 5, lug plates, 6, an arc-shaped blade body, 7, an outer convex arc-shaped surface, 8, a metal belt, 9, a metal belt inlet, 10, a feeding guide device, 11, a rolling forming device, 12, a blade finished product outlet, 13, a base, 14, a cutting and bending device, 15, a control platform, 16, a punching device, 17, a first punching oil press, 18, male threads, 19, a nut, 20, a top plate, 21, a stand column, 22, a bottom plate, 23, a second punching plate, 24, a second punching oil press, 25, a first punching plate, 26, a first piston rod, 27, a bending female module, 28, an inner edge, 29, a punching cutter, 30, a bending male module, 31, a rectangular through hole, 32, a U-shaped notch, 33, a central line, 34, a bending line, 35 and a bending support.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It is to be noted that the description of the embodiments is provided to aid understanding of the present invention, and is not intended to limit the present invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and 2, the multiple impeller blades of the fire-fighting smoke exhaust fan in the prior art include an arc-shaped blade body 6 extending along the width direction, the overlooking shape of the arc-shaped blade body 6 is rectangular, two symmetrical ear plates 5 are arranged at two ends of the rectangular shape, each ear plate 5 forms an included angle of 90 degrees with the concave arc-shaped surface 1 of the arc-shaped blade body 6, and the bottom surface of the concave arc-shaped surface 1 is an outer convex arc-shaped surface 7. Each ear plate 5 is provided with one or more through holes 4 for penetrating screws, a geometric piece is cut at the same end of the two ear plates 5 to form a corner cut gap 3, and the end of each ear plate 5 close to the corner cut gap 3 is a bevel edge 2.
As shown in figure 3, the roll forming device of the utility model is applied to a fire-fighting smoke exhaust fan multi-impeller blade forming machine, which comprises a control platform 15, a rectangular base 13, a feeding guide device 10 arranged on the base 13 and used for horizontally guiding and axially sliding a metal belt 8, wherein the left side of the feeding guide device 10 is provided with a metal belt inlet 9, a stamping device 16 used for stamping a U-shaped notch 32 and a plurality of through holes 4 for passing screws according to a fixed length of the feeding guide device 10, a roll forming device 11 used for forming an arc surface in the width direction of the metal belt 8 step by step and formed by a plurality of pairs of concave and convex roll wheels 19 and used for connecting sheets at the U-shaped notch 32 from the middle or cutting off from the extension line 33 of the central line and simultaneously bending respective ear plates 5 with a bevel edge 2 and the through holes 4 for passing screws to a cutting and bending device forming an included angle of 90 degrees with the inner concave arc surface 1, and used for cutting off and bending And 14, bending along a bending line 34. The rightmost side is the finished vane outlet 12.
As shown in fig. 3, 4, 5, 6, 7 and 8.
The utility model relates to a cutting and bending device of a multi-impeller blade forming machine of a fire-fighting smoke exhaust fan, which comprises a cutting and bending support 35, a first stamping oil press 17 fixed on the top of the cutting and bending support 35, such as a top plate 20, and a second stamping oil press 24 fixed on the bottom of the cutting and bending support 35, such as a bottom plate 22, wherein the free end of a first piston rod 26 of the first stamping oil press 17 is connected with a punching cutter 29 and a bending female module 27, the free end of a second piston rod (not shown) of the second stamping oil press 24 is connected with a bending male module 30, a rectangular through hole 31 matched with the shape and the size of the punching cutter 29 is arranged in the middle of the length of the bending male module 30, and the punching cutter 29, the bending female module 27 and the bending male module 30 move to be mutually meshed so as to cut an arc-shaped blade body 6 and bend two lug plates 5.
A first press plate 25 is fixed to a free end of a first piston rod 26 of the first press hydraulic press 17, and a press cutter 29 and a pair of bending female modules 27 located on both sides of the press cutter 29 are fixed to a bottom of the first press plate 25.
The first stamping plate 25 is provided with four through holes (not shown in the figure), and the four through holes are in one-to-one sliding fit with the four guide rods of the cutting and bending bracket 35 and are guided in a sliding mode up and down.
The cutting and bending bracket 35 comprises a top plate 20 and a bottom plate 22, wherein the top plate 20 and the bottom plate 22 are connected through four upright posts 21, if both ends of the upright posts 21 are provided with male threads 18, the male threads 18 are fastened by screwing nuts 19. The column 21 doubles as the guide bar described above. The top plate 20 has a through hole for the first piston rod 26 to pass through, and the bottom plate 22 has a through hole for the second piston rod to pass through (neither of these through holes is shown).
A second press plate 23 is fixed to a free end of a second piston rod of the second press oil press 24, and a bending male die 30 is fixed to a top of the second press plate 23.
The length of the bending male module 30 is shorter than the distance between the two bending female modules 27, that is, the length of the bending male module 30 is shorter than the distance between the two bending female modules 27, after the bending male module 30 and the bending female modules 27 are engaged oppositely, the gap between the left end of the bending male module 30 and the inner edge 28 of the left bending female module 27 is equal to or greater than the thickness of one lug plate 5, and the gap between the right end of the bending male module 30 and the inner edge 28 of the right bending female module 27 is also equal to or greater than the thickness of one lug plate 5.
The stamping hydraulic press can also be called as a stamping oil cylinder, a stamping hydraulic press or a stamping hydraulic cylinder, and is a commercially available commodity.
The above-mentioned fixing is such as welding or screwing. The U-shaped notch 32 or U-shaped notch may also be referred to as a V-shaped notch or V-shaped notch. The bending male module 30 is also referred to as a male bending block, and the bending female module 27 is also referred to as a female bending block. The above-described terms such as left and right are for convenience of description and should not be construed as limiting. The length and width are also relative, and the one extending in the longitudinal direction of the chassis 13 is referred to as a length, and the one extending in the width direction of the chassis 13 is referred to as a width.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a fire control smoke exhaust fan multi-impeller blade make-up machine cut off bending device, is including cutting off the support of bending, its characterized in that: the bending die comprises a cutting and bending support and is characterized by further comprising a first stamping oil press fixed at the top of the cutting and bending support and a second stamping oil press fixed at the bottom of the cutting and bending support, wherein the free end of a first piston rod of the first stamping oil press is connected with a punching cutter and a bending female die block, the free end of a second piston rod of the second stamping oil press is connected with a bending male die block, a rectangular through hole matched with the shape and the size of the punching cutter is formed in the middle of the length of the bending male die block, and the punching cutter, the bending female die block and the bending male die block move oppositely to be mutually meshed so as to cut off an arc-shaped blade body and bend two lug plates.
2. The cutting and bending device of the fire-fighting smoke exhaust fan multi-impeller blade forming machine according to claim 1, wherein: a first stamping plate is fixed at the free end of a first piston rod of the first stamping oil press, and a stamping cutter and a pair of bending female die blocks positioned on two sides of the stamping cutter are fixed at the bottom of the first stamping plate.
3. The cutting and bending device of the fire-fighting smoke exhaust fan multi-impeller blade forming machine according to claim 2, characterized in that: the first stamping plate is provided with four through holes which are in one-to-one corresponding sliding fit with four guide rods of the cutting and bending support and are in sliding guide up and down.
4. The cutting and bending device of the fire-fighting smoke exhaust fan multi-impeller blade forming machine according to claim 1, wherein: and a second stamping plate is fixed at the free end of a second piston rod of the second stamping oil press, and the bending male module is fixed at the top of the second stamping plate.
5. The cutting and bending device of the fire-fighting smoke exhaust fan multi-impeller blade forming machine according to claim 1, wherein: the length of the bending male module is shorter than the distance between the two bending female modules, after the bending male module and the bending female modules are engaged in opposite directions, the gap between the left end of the bending male module and the inner edge of the left bending female module is equal to or larger than the thickness of one lug plate, and the gap between the right end of the bending male module and the inner edge of the right bending female module is also equal to or larger than the thickness of one lug plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220342060.1U CN216728925U (en) | 2022-02-21 | 2022-02-21 | Cutting and bending device of multi-impeller blade forming machine of fire-fighting smoke exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220342060.1U CN216728925U (en) | 2022-02-21 | 2022-02-21 | Cutting and bending device of multi-impeller blade forming machine of fire-fighting smoke exhaust fan |
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| Publication Number | Publication Date |
|---|---|
| CN216728925U true CN216728925U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220342060.1U Active CN216728925U (en) | 2022-02-21 | 2022-02-21 | Cutting and bending device of multi-impeller blade forming machine of fire-fighting smoke exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216728925U (en) |
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- 2022-02-21 CN CN202220342060.1U patent/CN216728925U/en active Active
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