CN210547577U - Conveying device for four-corner bending machine - Google Patents

Abstract

A conveying device for a four-corner bending machine comprises a conveying belt, a base, a speed reducing motor, a front end frame, a rear end frame and four bending area roller sets; the conveying belt conveys the thin plate backwards and longitudinally, and the upper end of the conveying belt is bent to form four bending stations which are arranged at intervals; the base is longitudinally arranged from front to back, and the front end frame and the rear end frame are fixed at the front end and the rear end of the base in a one-to-one correspondence manner and are oppositely arranged; the front end frame and the rear end frame divide the conveyor belt into a going part and a return part, and the rear end of the going part sequentially passes through the four bending area roller groups in a winding mode. The utility model discloses a set up four belt roller groups, make it concave four stations of bending of formation in the journey belt part of going, and then both ends are bent the blank around can being convenient.

Description

Conveying device for four-corner bending machine

Technical Field

The utility model relates to a sheet metal working technical field, concretely relates to conveyer for four corners bender.

Background

The four-corner bending machine is a device for processing a sheet metal blank (indicated by a broken line in fig. 1) into a C-shaped sheet metal part 01 a. During bending, a first bending plate 01a is formed by bending two ends of a base plate 01C for 90 degrees for the first time, and a second bending plate 01b is formed by bending for 90 degrees for the second time, so that a C-shaped sheet metal part 01a is formed. In the prior art, due to the obstruction of the belt, bending is difficult to be carried out at the front end and the rear end, and bending is carried out at the left end and the right end, namely, bending stations are positioned at the left side and the right side of the belt. The left end and the right end of the bending mode extend out of the belt and are suspended to a certain degree, and the blank is easy to move under the action of the bending mechanisms on the left side and the right side, so that a conveying device for the four-corner bending machine needs to be designed, and the blank can be bent at the front end and the rear end conveniently.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a conveyer for four corners bender, make it can conveniently bend the blank at both ends in the front and back.

The utility model provides a technical scheme that technical problem adopted is: a conveying device for a four-corner bending machine comprises a conveying belt, a base, a speed reducing motor, a front end frame, a rear end frame and four bending area roller sets;

the conveying belt conveys the thin plate backwards and longitudinally, and the upper end of the conveying belt is bent to form four bending stations which are arranged at intervals; the base is longitudinally arranged from front to back, and the front end frame and the rear end frame are fixed at the front end and the rear end of the base in a one-to-one correspondence manner and are oppositely arranged; the front end frame and the rear end frame divide the conveyor belt into a going part and a return part, and the rear end of the going part sequentially passes through the four bending area roller groups in a winding mode.

Preferably, the bending area roller group comprises a first belt roller, a second belt roller, a third belt roller and a fourth belt roller which are transversely arranged and occupy four corners of a rectangle in sequence, and the rear end of the going section sequentially passes around the first belt roller, the second belt roller, the third belt roller and the fourth belt roller; the fourth belt roller is positioned right behind the first belt roller; the position of the rectangle is the bending station.

Preferably, the rear end of the forward-moving part sequentially winds through the four bending area roller subgroups, then sequentially winds through a rear upper belt roller, a first tension roller and a rear lower belt roller arranged on a rear end frame, then turns back from the lower side to the front, and sequentially winds through a front lower belt roller, a second tension roller, a third tension roller and a front upper belt roller arranged on a front end frame, then turns back from the upper side to the four bending area roller subgroups; the speed reducing motor is connected to the rear lower belt roller through power of a transmission belt.

Preferably, the third tension roller is vertically movably provided on the front end frame.

Preferably, the base is secured to the ground by a plurality of expansion bolts.

Preferably, the conveying device for a four-corner bending machine further comprises a first proximity switch and a second proximity switch, wherein the first proximity switch is arranged on the front side of the bending zone roller set on the foremost side, and the second proximity switch is arranged on the rear side of the bending zone roller set on the rearmost side.

The utility model has the advantages of it is following: the utility model discloses a set up four belt roller groups, make it concave four stations of bending of formation in the journey belt part of going, and then both ends are bent the blank around can being convenient.

Drawings

FIG. 1 is a schematic structural view of a sheet metal part to be produced by the present invention;

fig. 2 is a schematic structural view of a part of a four-corner bending machine according to a preferred embodiment of the present invention;

fig. 3 is a right side view of the four corner bender in accordance with a preferred embodiment of the present invention;

fig. 4 is a front view of the four corner bender in accordance with a preferred embodiment of the present invention;

FIG. 5 is a schematic diagram of the bending mechanism and bending zone roller set of a preferred embodiment of the present invention;

fig. 6 is a side view of a partial structure of a bending mechanism according to a preferred embodiment of the present invention;

fig. 7 is a side view of a partial structure of a bending mechanism according to a preferred embodiment of the present invention;

fig. 8 is a front view of a partial structure of a bending apparatus according to a preferred embodiment of the present invention;

description of reference numerals:

01. a sheet metal part; 01a, a first bending plate; 01b, a second bending plate;

01c, a substrate; 11. A base; 111. An expansion bolt;

12. a longitudinal guide rail; 13. A rear end frame; 131. A rear lower belt roller;

132. a first tension roller; 133. A posterior upper belt roller; 14. A front end frame;

141. a front lower belt roller; 142. A second tension roller; 143. A leading upper belt roll;

144. a third tension roller; 15. A reduction motor; 16. A transmission belt;

130. a conveyor belt; 17. A bending zone roller set; 171. A first belt roller;

172. a second belt roller; 173. A third belt roller; 174. A fourth belt roller;

18a, a first proximity switch; 18b, a second proximity switch; 21. Bending the support frame;

210. a horizontal table top; 22. A lateral support frame; 221. A bracket;

222. erecting a frame; 223. A top frame; 23. A locking assembly;

230. a locking cylinder; 231. Locking a cylinder hinged support; 232. Locking a hinge lug of the cylinder;

233. a locking plate hinged support; 234. A locking seat; 235. A locking plate;

236. a locking buckle; 3. A bending device; 310. Bending the air cylinder;

311. bending the hinged support of the cylinder; 312. Bending a hinge lug of the air cylinder; 320. Pressing down the air cylinder;

321. a guide seat; 322. A pressure lever; 323. Pressing a plate;

324. a first compression bar; 325. A second compression bar; 326. Feeding a mould strip;

327. discharging the die strip; 328. Folding the mould strip; 328a, a bending die strip seat;

331. a cross beam; 332. A vertical guide rail; 333. A lifting driving cylinder;

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be further explained with reference to the accompanying drawings.

Please refer to fig. 2 to 8 in combination.

The utility model discloses a four corners bender of preferred embodiment, it includes: a conveying device (not marked), four bending support frames 21, four bending devices 3 and four locking devices.

Wherein the conveyor has a conveyor belt 130 for longitudinally conveying the web rearward. The upper end of the conveyor belt 130 is folded to form four folding stations which are arranged at intervals in the front-back direction.

In addition to conveyor belt 130, the conveyor includes a base 11, a reduction motor 15, a front end frame 14, a rear end frame 13, and four bending zone roller sets 17. The base 11 is fixed to the ground by a plurality of expansion bolts 111. The base 11 is longitudinally arranged in front and rear. The front end frame 14 and the rear end frame 13 are fixed on the front end and the rear end of the base 11 in a one-to-one correspondence and opposite manner. The front end frame 14 and the rear end frame 13 divide the conveyor belt 130 into a forward travel section 130a and a return travel section 130 b. The rear end of the outbound portion 130a is sequentially passed around four bending zone roller sets 17. The base 11 is provided with a longitudinal guide rail 12, and four bending support frames 21 are longitudinally adjustably fixed on the longitudinal guide rail 12.

The bending region roller set 17 includes a first belt roller 171, a second belt roller 172, a third belt roller 173, and a fourth belt roller 174 which are disposed in a transverse direction and occupy four corners of a rectangle in order, and a rear end of the going path portion 130a is sequentially passed around the first belt roller 171, the second belt roller 172, the third belt roller 173, and the fourth belt roller 174. The fourth belt roller 174 is located right behind the first belt roller 171. The position of the rectangle is a bending station.

The rear end of the forward-stroke portion 130a sequentially passes around the four bending region roller sets 17, then sequentially passes around the rear upper belt roller 133, the first tension roller 132, and the rear lower belt roller 1311 provided on the rear end frame 13, then turns back from the lower side to the front, and sequentially passes around the front lower belt roller 141, the second tension roller 142, the third tension roller 144, and the front upper belt roller 143 provided on the front end frame 14, then turns back from the upper side to the four bending region roller sets 17. The reduction motor 15 is power-connected to the rear lower belt roller 1311 through a drive belt 16. The third tension roller 144 is vertically movably provided on the front end frame 14.

The four bending support frames 21 are correspondingly arranged at the four bending stations one by one. The conveyor belt 130 sequentially passes through the lower portions of the four bending support frames 21. The upper end of the bending support frame 21 is fixed with a horizontal table surface 210.

The four bending devices 3 are disposed on the four bending support frames 21 in a one-to-one correspondence. Bending apparatus 3 includes an upper die strip 326, a lower die strip 327, and a bending mechanism. The upper mold strips 326 are arranged right above the corresponding bending support frames 21 in a lifting manner. The lower mold strip 327 is secured to the corresponding horizontal table 210. The bending mechanism has a bending die bar 328. Upper die strip 326, lower die strip 327 and bending die strip 328 are arranged laterally. The upper die strip 326 and the lower die strip 327 face up and down. The bending die strip 328 is rotatably disposed on the front and rear sides of the lower die strip 327 along a transverse rotation axis. Bending die strip 328 has an upwardly disposed forming surface 328 a. The molding surface 328b of the bending die strip 328 can be rotated toward the upper die strip 326 and the lower die strip 327 and press-fitted on the front and rear corresponding sides of the upper die strip 326.

In two of the bending devices 3, the bending die strip 328 can be rotatably disposed on the front side of the lower die strip 327 along a transverse rotating shaft to bend the front end of the blank to the rear side; in the other two bending apparatuses 3, the bending die strip 328 is rotatably disposed on the rear side of the lower die strip 327 along a transverse rotation axis to bend the front end of the blank to the rear side. That is, of the four bending devices, two bending devices 3 bend forward and the other two bend backward.

According to the bending device, the blank can be pressed up and down through the upper die strip and the lower die strip during bending, and the bending die strip is used for bending, so that the bending part has high forming quality. Wherein, the end of the upper mould strip close to the bending mould strip is arc-shaped.

The locking device is used for locking the thin plates downwards on the horizontal table tops 210 of the four bending support frames 21 in a one-to-one correspondence manner, and comprises two locking assemblies 23, wherein the two locking assemblies 23 are arranged on the left side and the right side of the corresponding bending support frames 21 in a one-to-one correspondence manner and in a bilateral symmetry manner.

The locking assembly 23 includes: a locking cylinder hinge seat 231, a locking cylinder 230, a locking seat 234, a locking buckle 236, a locking cylinder hinge lug 232, a locking plate hinge seat 233 and a locking plate 235. The locking cylinder hinge base 231 is fixed to the lower portion of the side wall of the corresponding left and right sides of the bending support frame 21. The cylinder body of the locking cylinder 230 is hinged to the locking cylinder hinge base 231. The locking seat 234 is fixedly connected to the locking buckle 236. The locking buttons 236 are secured to the lower left and right sides of the upper mold strip 326. The lock cylinder hinge lug 232 is fixed to the piston rod of the lock cylinder 230. The locking plate hinge seats 233 are fixed to upper portions of the side walls of the corresponding left and right sides of the bending support frame 21. The middle portion of the locking plate 235 is hinged to the locking plate hinge base 233. One end of the locking plate 235 is hinged to the locking cylinder hinge lug 232, and the other end can be pressed on the upper end surface of the locking seat 234 after being rotated towards the left and right inner sides.

The locking device effectively locks the blank on the horizontal table top before bending so as to prevent the blank from moving when being bent, and further improves the qualification rate of products.

In other embodiments, the bending device may further include a beam 331 and a pressing device (not labeled). The cross beam 331 is provided vertically above the corresponding bending support frame 21. The hold-down device comprises two hold-down mechanisms (not labeled) comprising: a pressure rod 322, a guide seat 321, a lower pressure cylinder 320 and a pressure plate 323. Wherein the pressure lever 322 is vertically disposed. The guide holder 321 is horizontally fixed to the cross member 331. The down-pressure cylinder 320 is fixed to the cross beam 331. The piston rod of the push-down cylinder 320 slidably passes through the guide seat 321 and is fixed to the upper end of the press rod 322. The pressing plate 323 is horizontally arranged, and the front middle part and the rear middle part of the pressing plate 323 are hinged at the bottom of the cross beam 331. The upper mold strip 326 is fixed to the front and rear ends of the pressure plate 323, and the lower end of the press rod 322 is pressed downward against the front and rear ends of the pressure plate 323.

A first pressing strip 324 and a second pressing strip 325 are detachably fixed to the pressing plate 323, and are combined to form a T-shaped groove extending in the transverse direction, and the upper die strip 326 is fixed in the T-shaped groove. The first 324 and second 325 hold-down bars extend transversely.

In other embodiments, the bending device may also include a lateral support frame 22. The lateral support frame 22 includes a bracket 221, a stand 222, and a top frame 223 fixedly connected in sequence from bottom to top. The brackets 221 are fixed to the left and right sides of the corresponding bending support frame 21.

The lateral support frame 22 is vertically arranged and extends left and right. The lateral support frames 22 are provided on the left and right sides of the corresponding bending support frame 21. The ends of lateral supports 22 are fixed to bent supports 21. The cross member 331 is provided on the lateral support frame 22 to be movable up and down.

In other embodiments, the bending device may further include a lifting driving cylinder 333. The lifting driving cylinder 333 is fixed to the upper frame 223. The piston rod of the lifting driving cylinder 333 faces downwards vertically and is fixed on the top of the cross beam 331. Vertical guide rails 332 are provided on the left and right inner side walls of the stand 222. The cross member 331 is slidably provided up and down on the vertical guide rail 332.

The bending device can also comprise two bending mechanisms 3a which are arranged at intervals left and right. The bending mechanism 3a comprises a bending die strip mounting seat 328a, a bending air cylinder 310, a bending air cylinder hinged seat 311, a bending air cylinder mounting plate 313 and a bending air cylinder hinged lug 312. The bending cylinder mounting plate 313 is vertically disposed and fixed to the bending support frame 21 so as to extend in the left-right direction. The bending cylinder hinged support 311 is fixed on the bending cylinder mounting plate 313, and the cylinder body of the bending cylinder 310 is hinged on the bending cylinder hinged support 311. Bending die bar mounting base 328a is fixedly connected with bending die bar 328. The bending cylinder hinge lug 312 is fixed on the piston rod of the bending cylinder 310 and is hinged on the bending die strip mounting seat 328 a.

In other embodiments, the four corner bender preferably further comprises a first proximity switch 18a and a second proximity switch 18 b. A first proximity switch 18a is provided at the front side of the frontmost bending zone roller set 17 for detecting whether the blank reaches the frontmost bending station. The second proximity switch 18b is disposed at the rear side of the bending area roller group at the rearmost side, and is used for detecting whether the formed sheet metal part is bent for the last time.

The utility model discloses a four corners bender, its theory of operation is: when the first proximity switch detects that the front end of the blank reaches the bending station at the foremost side, the front end of the blank is bent through the bending devices in sequence to form a first bending plate and a second bending plate at the front end; then, the rear end of the blank is bent twice by another two bending devices to form a first bending plate and a second bending plate at the rear end; and then, after the second proximity switch detects that the formed sheet metal part is bent for the last time, the formed sheet metal part is conveyed backwards to other processes by the conveying device. The beam of the bending device is reset upwards after being bent so as to avoid interference between the first bending plate and the second bending plate.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Other parts not described in detail in the present invention belong to the prior art, and are not described herein again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (6)

1. The conveying device for the four-corner bending machine is characterized by comprising a conveying belt (130), a base (11), a speed reducing motor (15), a front end frame (14), a rear end frame (13) and four bending area roller groups (17);

the thin plate is longitudinally conveyed backwards by the conveyor belt (130), and the upper end of the conveyor belt (130) is folded to form four bending stations which are arranged at intervals front and back; the base (11) is longitudinally arranged in the front and back direction, and the front end frame (14) and the rear end frame (13) are correspondingly fixed at the front end and the back end of the base (11) in a one-to-one manner; the conveyor belt (130) is divided into an outward-moving part (130a) and a return-moving part (130b) by a front end frame (14) and a rear end frame (13), and the rear end of the outward-moving part (130a) sequentially winds through four bending area roller groups (17).

2. A transfer device for a quadrangle bending machine according to claim 1, wherein said bending zone roller set (17) comprises a first belt roller (171), a second belt roller (172), a third belt roller (173) and a fourth belt roller (174) which are arranged transversely and occupy four corners of a rectangle in sequence, and a rear end of said going section (130a) is sequentially passed around the first belt roller (171), the second belt roller (172), the third belt roller (173) and the fourth belt roller (174); the fourth belt roller (174) is positioned right behind the first belt roller (171); the position of the rectangle is the bending station.

3. A transfer device for a quadrangle bending machine according to claim 2, wherein a rear end of the go-round portion (130a) turns back forward from a lower side after sequentially passing through four bending zone roller sets (17), sequentially passing through a rear upper belt roller (133), a first tension roller (132), and a rear lower belt roller (131) provided on a rear end frame (13), and sequentially passing through a front lower belt roller (141), a second tension roller (142), a third tension roller (144), and a front upper belt roller (143) provided on a front end frame (14) and then turns back backward from an upper side to the four bending zone roller sets (17); the speed reducing motor (15) is in power connection with the rear lower belt roller (131) through a transmission belt (16).

4. A transfer device for quadrangle bending machines according to claim 3 characterized in that said third tension roller (144) is vertically movably arranged on the front frame (14).

5. A transfer device for quadrangular bending machines according to claim 4, characterized in that said base (11) is fixed on the ground by means of a plurality of expansion bolts (111).

6. A transfer device for foursquare bending machines according to claim 1, characterized by further comprising a first proximity switch (18a) and a second proximity switch (18b), said first proximity switch (18a) being arranged on the front side of the frontmost bending zone roller set (17), said second proximity switch (18b) being arranged on the rear side of the rearmost bending zone roller set (17).

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