Fireproof door leaf bending assembly line
The design of the fire door leaf bending production line solves the problems of low bending efficiency and difficulty in controlling bending corners, achieving efficient and precise door leaf bending processing.
Patent Information
- Application Number
- CN202520201124.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-07
AI Technical Summary
In existing technologies, the bending process for door panels is inefficient and it is difficult to control the curvature of the bending corners, requiring repeated adjustments and two bending operations.
A fire door leaf bending production line is adopted, including the production line and bending device. The spacing of the clamping and fixing structure is adjusted by the No. 1 drive device, and the No. 2 hydraulic cylinder and hydraulic rod drive the push wheel to move up and down, controlling the bending plate to rotate around the hinge, so as to achieve simultaneous bending and control of the curvature of the bending corner.
It improves the efficiency of door panel bending, simplifies the operation process, ensures precise control of bending corners, and avoids damage to the door panel surface.
Smart Images

Figure CN223588064U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to door leaf production technical field especially relates to fireproof door door leaf bending assembly line. BACKGROUND
[0002] Door panel's modeling production divides into spraying, front processing and door leaf bending etc. process, and the existing door panel processing spraying, front processing and door leaf bending are completed on three machines, that is, first, the door panel spraying machine is used to complete the spraying treatment of the door panel, then the door panel is moved to the door panel bending machine to process the back of the door panel, and finally the door panel is turned over and moved to the door panel front processing machine to process the front of the door panel.
[0003] For example, the utility model discloses a numerical control hydraulic flanging machine, which can place the flanging piece on the pressing plate through the mechanical hand, when the flanging piece on the pressing plate needs to be replaced, the mechanical hand can grab the flanging piece on the pressing plate and place it on the replacement rack, and when the mechanical hand is replaced, the flanging machine works to flange the door and window, realizes automatic replacement of the flanging piece and automatic flanging, reduces labor cost and personnel injury, and is convenient and simple to operate, but such a structure still has the following significant defects:
[0004] 1. When bending the door panel, it needs to be adjusted repeatedly and bent twice, which reduces the bending efficiency of the door panel.
[0005] 2. When bending the door panel, it is not convenient to control the bending angle of the door panel, which is relatively inconvenient. SUMMARY
[0006] The utility model aims at solving one of the technical problems in the prior art.
[0007] The application provides a fireproof door door leaf bending assembly line, which comprises a flow line and a bending device.
[0008] The spacing of the clamping and fixing structures can be adjusted through the driving device and the adjusting structure.
[0009] Further, the adjusting structure comprises a movable cavity, the movable cavity is arranged in the bending device, a fixed block is fixedly installed in the movable cavity, a sliding block is slidably installed in the movable cavity, the fixed block and the sliding block are both provided with sliding grooves, a pair of sliding members are slidably installed in the sliding grooves, and two pairs of sliding members are movably connected through four X-shaped adjusting members.
[0010] The active cavity is provided with a connecting groove, and four X-shaped adjusting members are fixedly connected with the four clamping fixed structures through the connecting groove.
[0011] Further, the X-shaped adjusting member comprises a pair of connecting rods and a connecting block, the pair of connecting rods are hingedly connected through a pin shaft, one end of the connecting block is fixedly connected with the connecting rod at the upper end, and the other end is fixedly connected with the clamping fixed structure.
[0012] The connecting rod at the leftmost end is hingedly connected with the sliding member on the sliding block through a pin shaft, the connecting rod at the rightmost end is hingedly connected with the sliding member on the fixed block through a pin shaft, and the end portions of each two connecting rods corresponding in position are hingedly connected through a pin shaft.
[0013] Further, the first driving device comprises a driving motor and a threaded rod, the driving motor is installed on the bending device, the threaded rod is rotatably installed in the active cavity, and the threaded rod is fixedly connected with the transmission shaft of the driving motor.
[0014] The threaded rod is movably connected with the sliding block through threads.
[0015] Further, the clamping fixed structure comprises a lower bottom plate, a sliding rod and an upper bottom plate, the bending device is provided with a first sliding groove, one end of the sliding rod is fixedly connected with the lower bottom plate, the other end is slidably installed on the first sliding groove through a first sliding block, the bottom end of the lower bottom plate is fixedly connected with the connecting block, and the upper bottom plate is slidably installed on the sliding rod.
[0016] The bending device is fixedly installed with a first hydraulic cylinder, the lower end of the first hydraulic cylinder is provided with a telescopic hydraulic rod, the lower end of the telescopic hydraulic rod is provided with a pressing plate, the pressing plate is provided with a second sliding groove, and the upper bottom plate is slidably installed on the second sliding groove through a second sliding block.
[0017] Further, the bending device is provided with a roller groove, a plurality of rollers are movably installed in the roller groove, and the rollers are in close contact with the lower bottom plate.
[0018] Further, the upper end surface of the lower bottom plate and the lower end surface of the upper bottom plate are provided with a buffer pad.
[0019] Further, the bending mechanism comprises a bending plate and a hinge, and the bending plate is movably installed at the opposite end of the pair of lower bottom plates on the outermost side through the hinge.
[0020] Further, the second driving device comprises a mounting block fixedly installed at one end of the outermost pair of lower bottom plates away from each other, a second hydraulic cylinder fixedly installed at the top end of the mounting block, a hydraulic rod arranged at the top end of the second hydraulic cylinder, and a pushing wheel arranged at the top end of the hydraulic rod and abutting against the bottom end of the bending plate.
[0021] The present application has the following advantages:
[0022] 1. The first driving device can adjust the positions of the four lower pressing plates to adapt to the widths of different door plates, the clamping and fixing device can press and fix the door plate, the bending device can bend both ends of the door plate at the same time, and the bending efficiency of the door plate is improved.
[0023] 2. The second hydraulic cylinder and the hydraulic rod can drive the pushing wheel to move up and down, the pushing wheel can drive the bending plate to rotate around the hinge to bend, the external controller can control the distance of the pushing wheel moving up to control the curvature of the bent corner of the door plate. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 FIG. 1 is a structural schematic view of a fireproof door door leaf bending assembly line in the embodiment of the present application;
[0025] Figure 2 FIG. 2 is a structural schematic view of the bending device in the embodiment of the present application;
[0026] Figure 3 FIG. 3 is a front view of the bending device in the embodiment of the present application;
[0027] Figure 4 FIG. 4 is a structural schematic view of the mounting block in the embodiment of the present application; Figure 3 FIG. 5 is a sectional view along the A-A direction;
[0028] Figure 5 FIG. 6 is a structural schematic view of the first hydraulic cylinder in the embodiment of the present application; Figure 2 FIG. 7 is a sectional view along the B-B direction;
[0029] Figure 6 FIG. 8 is a structural schematic view of the second hydraulic cylinder in the embodiment of the present application; Figure 3 FIG. 9 is an enlarged structural schematic view of the C part in the embodiment of the present application.
[0030] REFERENCE SIGNS
[0031] 1- Assembly line, 2- Bending device, 21- No. 1 slide rail, 22- No. 1 hydraulic cylinder, 23- Telescopic hydraulic rod, 24- Pressure plate, 25- No. 2 slide rail, 26- Roller groove, 27- Roller, 3- Clamping and fixing structure, 31- Lower base plate, 32- Sliding rod, 33- Upper base plate, 34- No. 1 slider, 35- No. 2 slider, 36- Buffer pad, 4- Bending structure, 41- Bending plate, 42- Hinge, 51- No. 1 drive Device, 511-Drive motor, 512-Threaded rod, 52-Adjusting structure, 521-Moving cavity, 522-Fixed block, 523-Sliding block, 524-Sliding groove, 525-Sliding component, 526-X-type adjusting component, 527-Connecting groove, 528-Connecting rod, 529-Connecting block, 53-Second drive device, 531-Mounting block, 532-Second hydraulic cylinder, 533-Hydraulic rod, 534-Push wheel. Detailed Implementation
[0032] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0033] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0034] The fire door leaf bending production line provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.
[0035] Example 1:
[0036] like Figures 1 to 6 As shown in the figure, this application embodiment provides a fire door leaf bending production line, including a production line 1 and a bending device 2. The bending device 2 is characterized in that four clamping and fixing structures 3 are slidably installed at equal intervals. A bending mechanism 4 is installed at the opposite ends of the outermost pair of clamping and fixing structures 3. The bending mechanism 4 can perform bending processing simultaneously through a second driving device 53. The spacing of the clamping and fixing structures 3 can be adjusted by a first driving device 51 and an adjusting structure 52.
[0037] Further, the adjusting structure 52 comprises a movable cavity 521 arranged in the bending device 2, a fixed block 522 fixedly arranged in the movable cavity 521, and a sliding block 523 slidingly arranged in the movable cavity 521, wherein the fixed block 522 and the sliding block 523 are provided with sliding grooves 524, a pair of sliding members 525 are slidingly arranged in the sliding grooves 524, and two pairs of the sliding members 525 are movably connected through four X-shaped adjusting members 526.
[0038] Further, the X-shaped adjusting member 526 comprises a pair of connecting rods 528 and a connecting block 529, wherein the connecting rods 528 are hingedly connected through a pin shaft, one end of the connecting block 529 is fixedly connected with the connecting rod 528 at the upper end, and the other end is fixedly connected with the clamping and fixing structure 3; the connecting rod 528 at the left end is hingedly connected with the sliding member 525 on the sliding block 523 through a pin shaft, the connecting rod 528 at the right end is hingedly connected with the sliding member 525 on the fixed block 522 through a pin shaft, and the end portions of each two connecting rods 528 corresponding in position are hingedly connected through pin shafts.
[0039] Further, the first driving device 51 comprises a driving motor 511 and a threaded rod 512, wherein the driving motor 511 is arranged on the bending device 2, the threaded rod 512 is rotatably arranged in the movable cavity 521, and the threaded rod 512 is fixedly connected with the transmission shaft of the driving motor 511; and the threaded rod 512 is movably connected with the sliding block 523 through threads.
[0040] Further, the clamping and fixing structure 3 comprises a lower bottom plate 31, a sliding rod 32, and an upper bottom plate 33, wherein a first sliding groove 21 is arranged on the bending device 2, one end of the sliding rod 32 is fixedly connected with the lower bottom plate 31, the other end is slidingly arranged on the first sliding groove 21 through a first sliding block 34, the bottom end of the lower bottom plate 31 is fixedly connected with the connecting block 529, and the upper bottom plate 33 is slidingly arranged on the sliding rod 32; a first hydraulic cylinder 22 is fixedly arranged on the bending device 2, a telescopic hydraulic rod 23 is arranged at the lower end of the first hydraulic cylinder 22, a pressing plate 24 is arranged at the lower end of the telescopic hydraulic rod 23, a second sliding groove 25 is arranged on the pressing plate 24, and the upper bottom plate 33 is slidingly arranged on the second sliding groove 25 through a second sliding block 35.
[0041] Further, the bending device 2 is provided with a roller groove 26, and a plurality of rollers 27 are movably installed in the roller groove 26 and are in close contact with the lower bottom plate 31.
[0042] Further, the upper end surface of the lower bottom plate 31 and the lower end surface of the upper bottom plate 33 are provided with a buffer pad 36.
[0043] In this embodiment of the present application, due to the adoption of the above structure, the door plate reaches the bending structure 2 through the assembly line 1, and the operator first determines the bending positions of the two ends of the door plate, and then places the door plate on the top surface of the four lower bottom plates 31, and then controls the driving motor 511 to start through the external control center, the driving motor 511 starts to drive the threaded rod 512 to rotate, the threaded rod 512 rotates to drive the sliding block 523 to slide in the movable cavity 521, thereby increasing or reducing the distance between the sliding block 523 and the fixed block 522 and changing the included angle between the connecting rods 528, so that the four connecting blocks 529 on them slide in the connecting grooves 527, the four connecting blocks 529 slide to drive the four lower bottom plates 31 to slide, respectively, the four lower bottom plates 31 slide to drive the first sliding block 34 on the corresponding sliding rod 32 to slide in the first sliding groove 21, and the four sliding rods 32 slide to drive the second sliding block 35 on the corresponding upper bottom plate 33 to slide in the first sliding groove 25, so that the bending positions of the two ends of the door plate and the end surface of the outermost pair of lower bottom plates 31 opposite to each other are in the same vertical plane, and then the first hydraulic cylinder 22 is started, the first hydraulic cylinder 22 drives the pressing plate 24 and the upper bottom plate 33 to move downward through the telescopic hydraulic rod 23, so as to clamp the door plate, and the two ends of the door plate are simultaneously bent through the second driving device 53 and the bending mechanism 4;
[0044] During the sliding process of the lower bottom plate 31, since the lower bottom plate 31 is in close contact with the rollers 27, the frictional resistance generated when the lower bottom plate 31 slides can be reduced, so that the entire operation process is more smooth;
[0045] When clamping and fixing the door plate, the plurality of buffer pads 36 can play a buffering role, so as to avoid damage to the surface of the door plate.
[0046] Embodiment 2:
[0047] As shown in Figure 6 In this embodiment, in addition to the structural features of the foregoing embodiments, the bending mechanism 4 comprises a bending plate 41 and a hinge 42, and the bending plate 41 is movably installed at the end of the outermost pair of lower bottom plates 31 opposite to each other through the hinge 42.
[0048] Further, the second driving device 53 comprises a mounting block 531 fixedly installed at one end of the outermost pair of lower bottom plates 31 away from each other, a second hydraulic cylinder 532 fixedly installed at the top end of the mounting block 531, a hydraulic rod 533 arranged at the top end of the second hydraulic cylinder 532, and a pushing wheel 534 arranged at the top end of the hydraulic rod 533 and abutting against the bottom end of the bending plate 41.
[0049] In this embodiment of the present application, due to the above-mentioned structure, during the sliding of the lower bottom plates 31, the bending mechanism 4 and the second driving device 53 will slide together with the outermost pair of lower bottom plates 31, and when sliding to the designated position and clamping and fixing, the second hydraulic cylinders 532 on both sides are started and respectively push the corresponding pushing wheels 534 upward through the corresponding hydraulic rods 533, and the upward movement of the pair of pushing wheels 534 drives the corresponding bending plates 41 to rotate around the hinges 42, so as to simultaneously bend the two ends of the door plate, and the curvature of the bent corner of the door plate can be controlled by controlling the upward movement distance of the pushing wheels 534.
[0050] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, such that processes, methods, articles, or devices that comprise a list of elements are not limited to those elements, but can also include other elements not expressly listed, or inherent to such processes, methods, articles, or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or device that includes the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to the order of performing the functions shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in reverse order, for example, the described method can be performed in an order different from that described, and various steps can be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.
[0051] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative and not limiting, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims, which all belong to the protection of the present application.
Claims
1. A fire door leaf bending line, comprising a line (1), a bending device (2), characterized in that, Four clamping and fixing structures (3) are equidistantly and slidably arranged on the bending device (2), and the opposite ends of the outermost pair of clamping and fixing structures (3) are provided with bending mechanisms (4), which can be simultaneously bent through the second driving device (53); The distance between the clamping and fixing structures (3) can be adjusted through the first driving device (51) and the adjusting structure (52); The adjusting structure (52) comprises a movable cavity (521) arranged in the bending device (2), a fixed block (522) fixedly arranged in the movable cavity (521), and a sliding block (523) slidably arranged in the movable cavity (521). The fixed block (522) and the sliding block (523) are provided with sliding grooves (524), and a pair of sliding members (525) are slidably arranged in the sliding grooves (524). Two pairs of sliding members (525) are movably connected through four X-shaped adjusting members (526); The movable cavity (521) is provided with a connecting groove (527), and the four X-shaped adjusting members (526) are fixedly connected with the four clamping and fixing structures (3) through the connecting groove (527); The X-shaped adjusting member (526) comprises a pair of connecting rods (528) and a connecting block (529). The pair of connecting rods (528) are hingedly connected through a pin shaft. One end of the connecting block (529) is fixedly connected with the connecting rod (528) at the upper end, and the other end is fixedly connected with the clamping and fixing structure (3). The connecting rod (528) at the leftmost end is hingedly connected with the sliding member (525) on the sliding block (523) through a pin shaft, and the connecting rod (528) at the rightmost end is hingedly connected with the sliding member (525) on the fixed block (522) through a pin shaft. The end portions of every two connecting rods (528) corresponding in position are hingedly connected through pin shafts; The clamping and fixing structure (3) comprises a lower bottom plate (31), a sliding rod (32), and an upper bottom plate (33). A first sliding groove (21) is arranged on the bending device (2). One end of the sliding rod (32) is fixedly connected with the lower bottom plate (31), and the other end is slidably arranged on the first sliding groove (21) through a first sliding block (34). The bottom end of the lower bottom plate (31) is fixedly connected with the connecting block (529), and the upper bottom plate (33) is slidably arranged on the sliding rod (32); A first hydraulic cylinder (22) is fixedly arranged on the bending device (2), and a telescopic hydraulic rod (23) is arranged at the lower end of the first hydraulic cylinder (22). A pressing plate (24) is arranged at the lower end of the telescopic hydraulic rod (23), a second sliding groove (25) is arranged on the pressing plate (24), and the upper bottom plate (33) is slidably arranged on the second sliding groove (25) through a second sliding block (35); The bending mechanism (4) comprises a bending plate (41) and a hinge (42). The bending plate (41) is movably arranged at the opposite end of the outermost pair of lower bottom plates (31) through the hinge (42). The second driving device (53) comprises a mounting block (531) fixedly installed at one end of the outermost pair of lower bottom plates (31) away from each other, a second hydraulic cylinder (532) fixedly installed at the top end of the mounting block (531), a hydraulic rod (533) arranged at the top end of the second hydraulic cylinder (532), and a pushing wheel (534) arranged at the top end of the hydraulic rod (533) and abutting against the bottom end of the bending plate (41).
2. The fire door leaf bending line according to claim 1, characterized in that, The first driving device (51) comprises a driving motor (511) and a threaded rod (512), the driving motor (511) is installed on the bending device (2), the threaded rod (512) is rotatably installed in the movable cavity (521), and the threaded rod (512) is fixedly connected with the transmission shaft of the driving motor (511); wherein the threaded rod (512) is movably connected with the sliding block (523) through threads.
3. The fire door leaf bending line according to claim 1, characterized in that, The bending device (2) is provided with a plurality of roller grooves (26), and a plurality of rollers (27) are movably installed in the roller grooves (26) and abut against the lower bottom plates (31).
4. The fire door leaf bending line of claim 1, wherein, The upper end surface of the lower bottom plate (31) and the lower end surface of the upper bottom plate (33) are provided with a buffer pad (36).
Citation Information
Patent Citations
Numerical control hydraulic flanging machine
CN218946032U