Continuous bending device for special-shaped frame strip machining

Abstract

The invention relates to the technical field of bending equipment, and provides a continuous bending device for special-shaped frame strip machining, which comprises a rack, feeding rollers, bearing blocks, sliding blocks, mounting blocks and bending rollers, the feeding rollers are rotatably arranged on the rack in pairs, the bearing blocks are arranged on the rack, the sliding blocks are slidably arranged relative to the bearing blocks, the mounting blocks are movably arranged relative to the sliding blocks, and the bending rollers are arranged on the rack. Mounting blocks are arranged on the bearing block, the bending rollers are rotationally arranged on the mounting blocks, a bending station is arranged above the bearing block, the sliding blocks are used for driving the mounting blocks to move along the bending station after sliding, the bending rollers are made to bend a workpiece, the two mounting blocks and the two bending rollers are arranged in a bilateral symmetry mode, and when the mounting block on one side moves on the bending station, the mounting block on the other side is separated from the bending station. By means of the technical scheme, the problems that in the prior art, bending rollers on the two sides need to be driven respectively for a workpiece with the two sides needing to be bent, the driving structure is complex, and maintenance and overhaul are difficult are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of bending equipment, and in particular to a continuous bending device for processing special-shaped frame strips. Background Art

[0002] In today's decoration and home furnishings field, aesthetics has become an increasingly important factor in product design. As for mirror frames or photo frames, the traditional rectangular style can no longer meet the increasingly diverse aesthetic needs of consumers. Special-shaped frame strips are favored for their unique shape and flexible lines, which can add artistic atmosphere and personality charm to the space.

[0003] In the processing and manufacturing of special-shaped frame strips, the existing bending processes mostly place the workpiece in the gap between a pair of rollers, use the clamping function of the rollers to drive the workpiece forward, and at the same time, drive the bending rollers to move toward the workpiece and apply pressure to cause the workpiece to deform to achieve the bending operation.

[0004] When faced with special-shaped frame workpieces with complex designs that need to be bent on both sides, it is necessary to set movable bending rollers on both sides of the workpiece, and when the bending roller on one side moves, the bending roller on the other side also needs to make way for the bent and deformed workpiece. Therefore, the movement of the bending roller is relatively complicated, and the bending rollers on both sides need to be driven separately, which leads to a more complicated structure for driving the bending rollers to move. At the same time, it increases the difficulty of maintenance and overhaul, which reduces production efficiency, prolongs the processing cycle, and increases production costs.

[0005] In the current pursuit of efficient and high-precision production, a new device for continuous bending of special-shaped frame strips is urgently needed to fill this technical gap. Summary of the invention

[0006] The present invention provides a continuous bending device for processing special-shaped frame strips, which solves the problem in the related art that for a workpiece that needs to be bent on both sides, the bending rollers on both sides need to be driven separately, the driving structure is complex, and maintenance and repair are difficult.

[0007] The technical solution of the present invention is as follows: A continuous bending device for processing special-shaped frame strips, comprising a frame, a feed roller, a bearing block, a slider, a mounting block and a bending roller, wherein the feed roller is rotatably arranged on the frame and arranged in pairs, the bearing block is arranged on the frame, the slider is slidably arranged relative to the bearing block, the mounting block is movably arranged relative to the slider, and the bending roller is rotatably arranged on the mounting block. A bending station is provided above the bearing block. After the sliding block slides, it is used to drive the mounting block to move along the bending station and enable the bending roller to bend the workpiece. The mounting block and the bending roller are both symmetrically arranged in two, and when the mounting block on one side moves in the bending station, the mounting block on the other side is separated from the bending station.

[0008] Optionally, the bearing block has a guiding arc surface and a bearing surface, the bending station is located above the bearing surface, and after the sliding block slides, it is used to drive the mounting block to contact the guiding arc surface and the bearing surface in sequence.

[0009] Optionally, it also includes a connecting rod, the two ends of which are respectively hinged to the mounting block and the slider, the supporting block is provided with a sliding groove, the slider is reciprocatingly slidable in the sliding groove, and after the slider slides, the mounting block is driven to move with the help of the connecting rod.

[0010] Optionally, a spring is further included, with two ends of the spring acting on the mounting block and the bearing block respectively, so as to provide a force for the mounting block to press downward against the bearing surface.

[0011] Optionally, it also includes a two-dimensional moving mechanism and a clamping assembly, wherein the two-dimensional moving mechanism is used to be set on the frame, and the clamping assembly is rotatably set relative to the two-dimensional moving mechanism. The clamping assembly can move in a horizontal plane with the help of the two-dimensional moving mechanism, and the clamping assembly is used to clamp the part of the workpiece to complete the bending.

[0012] Optionally, the two-dimensional moving mechanism and the clamping assembly are each provided with two groups.

[0013] Optionally, the two-dimensional moving mechanism includes a longitudinal moving rod and a transverse moving seat, the longitudinal moving rod is slidably disposed on the frame along the longitudinal direction, the transverse moving seat is slidably disposed on the longitudinal moving rod along the transverse direction, and the clamping assembly is rotatably disposed on the transverse moving seat.

[0014] Optionally, the clamping assembly includes a mounting frame and a clamping plate, wherein the mounting frame is rotatably disposed on the transverse displacement seat, and the clamping plates are slidably disposed in pairs in the mounting frame for clamping the bent portion of the workpiece.

[0015] Optionally, the feeding roller and the bending roller have the same structure and both include a core shaft and a roller body, the core shaft is rotatably disposed on the frame or the mounting block, and the roller body is detachably disposed on the core shaft.

[0016] Optionally, the core shaft and the roller body are provided with interconnected pin holes, and the pin holes are used for inserting locking pins.

[0017] The working principle and beneficial effects of the present invention are: In actual work, the straight frame strip material to be processed is first placed between a pair of feed rollers. The feed rollers start to rotate at a uniform speed, relying on the friction between them and the workpiece to clamp the workpiece forward and transport the workpiece to the bending station above the carrier block.

[0018] For example, if the design requirement of the workpiece is to bend to the right first, the slider is driven to slide to the right. The movement of the slider drives the mounting block on the left and the bending roller to move to the right. The bending roller fits closely to the right surface of the workpiece, and with the continuous and stable extrusion force, the workpiece gradually deforms to the right, completing the bending step to the right.

[0019] It should be emphasized that when the left bending roller moves to the right, the mounting block and bending roller on the right side will detach from the bending station and sink below the height of the bending station, thereby cleverly making room for the workpiece that deforms to the right during the right bending process, effectively avoiding mutual interference between components and ensuring smooth and unobstructed bending.

[0020] When one side is bent, the bending roller on the opposite side can automatically give way to make room for deformation of the workpiece, thereby ensuring that the workpiece can be bent at a larger angle. This achieves a linkage effect of the bending roller moving on one side and the bending roller giving way on the other side. There is no need to drive the bending rollers on both sides separately, which simplifies the driving structure and improves the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0022] Figure 1 It is a structural schematic diagram of a continuous bending device for processing special-shaped frame strips; Figure 2 It is a structural schematic diagram of the bending roller; Figure 3 A top view of a continuous bending device for processing special-shaped frame strips; Figure 4 for Figure 1 Enlarged view of point A in the middle; Figure 5 It is a structural schematic diagram of the bearing block; Figure 6 It is a schematic diagram of the structure of the mandrel and the roller body; Figure 7 It is the front view of the bending roller; Figure 8 It is a schematic diagram of the bending roller when bending to the left; Fig. 9 This is a schematic diagram of the bending roller when bending to the right.

[0023] In the figure: 1, frame, 2, feed roller, 3, bearing block, 4, slider, 5, mounting block, 6, bending roller, 7, bending station, 301, guide arc surface, 302, bearing surface, 8, connecting rod, 9, slide groove, 10, spring, 11, two-dimensional moving mechanism, 12, clamping assembly, 1101, longitudinal shift rod, 1102, transverse shift seat, 1201, mounting frame, 1202, clamping plate, 201, core shaft, 202, roller body, 203, pin hole, 204, locking pin. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0025] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0026] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0028] Reference Figure 1 to Figure 9 , which is the first embodiment of the present invention, proposes a continuous bending device for processing special-shaped frame strips, including a frame 1, a feed roller 2, a bearing block 3, a slider 4, a mounting block 5 and a bending roller 6, wherein the feed roller 2 is rotatably arranged on the frame 1 and is arranged in pairs, the bearing block 3 is arranged on the frame 1, the slider 4 is slidably arranged relative to the bearing block 3, the mounting block 5 is movably arranged relative to the slider 4, and the bending roller 6 is rotatably arranged on the mounting block 5, A bending station 7 is provided above the bearing block 3. After the slide block 4 slides, it is used to drive the mounting block 5 to move along the bending station 7 and make the bending roller 6 bend the workpiece. Two of the mounting blocks 5 and the bending rollers 6 are symmetrically arranged on both sides. When the mounting block 5 on one side moves, the mounting block 5 on the other side is separated from the bending station 7 .

[0029] In this embodiment, during actual work, the straight frame strip material to be processed is first placed between a pair of feed rollers 2, and the feed rollers 2 begin to rotate at a uniform speed, relying on the friction between them and the workpiece to clamp the workpiece forward, and transport the workpiece to the bending station 7 above the supporting block 3.

[0030] For example, if the design requirement of the workpiece is to bend to the right first, the slider 4 is first driven to slide to the right. The movement of the slider 4 drives the mounting block 5 on the left and the bending roller 6 to move to the right step. The bending roller 6 fits closely to the right surface of the workpiece, and with the continuous and stable extrusion force, the workpiece gradually deforms to the right, completing the bending step to the right.

[0031] It should be emphasized that when the left bending roller 6 moves to the right, the mounting block 5 and the bending roller 6 on the right side will separate from the bending station 7 and sink below the height of the bending station 7, thereby cleverly making room for the workpiece that is deformed to the right during the right bending process, effectively avoiding mutual interference between components and ensuring smooth and unobstructed bending action.

[0032] When one side is bent, the bending roller 6 on the opposite side can automatically give way to make room for deformation of the workpiece, thereby ensuring that the workpiece can be bent at a larger angle. The linkage effect of the movement of the bending roller 6 on one side and the giving way of the bending roller 6 on the other side is achieved. There is no need to drive the bending rollers 6 on both sides separately, which simplifies the driving structure and improves the practicability of the equipment.

[0033] Furthermore, the bearing block 3 has a guide arc surface 301 and a bearing surface 302, and the bending station 7 is located above the bearing surface 302. After the slider 4 slides, it is used to drive the mounting block 5 to contact the guide arc surface 301 and the bearing surface 302 in sequence.

[0034] Furthermore, it also includes a connecting rod 8, the two ends of which are respectively hinged to the mounting block 5 and the slider 4, the bearing block 3 is provided with a slide groove 9, the slider 4 is reciprocatingly slidable in the slide groove 9, and after the slider 4 slides, the mounting block 5 is driven to move by the connecting rod 8.

[0035] In this embodiment, the design of the slide groove 9 and the connecting rod 8 ensures the stability of the bending process. Taking the bending to the right as an example, the slider 4 is driven to slide to the right in the slide groove 9. Since the slider 4 and the mounting block 5 are hinged by the connecting rod 8, the moving force of the slider 4 is transmitted to the mounting block 5 on the left through the connecting rod 8. During the process, the left mounting block 5 first contacts the guide arc surface 301 on the bearing block 3, guiding the mounting block 5 to move to the bearing surface 302, ensuring that the bending roller 6 can correspond to the part to be bent of the workpiece in a timely and accurate manner. As the slider 4 continues to slide, the connecting rod 8 drives the mounting block 5, so that the bending roller 6 fits the workpiece tightly, stably applies the extrusion force, and completes the bending deformation of the workpiece to the right. At the same time, the mounting block 5 on the right side is separated from the bearing block 3 under the action of the connecting rod 8, and swings down to below the height of the bending station 7, reserving space for the deformation of the workpiece to the right, avoiding possible collisions between components.

[0036] On the one hand, the design of the guide arc surface 301 improves the stability of the movement of the mounting block 5 and the accuracy of positioning, reducing product defects caused by positioning deviation. On the other hand, the ingenious design of the connection of the connecting rod 8 optimizes the force transmission path, making the linkage between the slider 4 and the mounting block 5 more stable and improving the reliability of the overall structure.

[0037] Furthermore, a spring 10 is included, and two ends of the spring 10 act on the mounting block 5 and the bearing block 3 respectively, so as to provide a force for the mounting block 5 to press downward against the bearing surface 302 .

[0038] In this embodiment, taking right bending as an example, the slider 4 moves to the right, and with the help of the connecting rod 8, the left mounting block 5 is driven to approach the bearing block 3. The mounting block 5 first contacts the guide arc surface 301, and smoothly transitions to the bearing surface 302 along the arc surface. At this time, due to the change in the position of the mounting block 5 relative to the bearing block 3, the spring 10 on the left is stretched, providing a pulling force for the mounting block 5 to press the bearing surface 302 downward. This pressing force allows the mounting block 5 to move stably in the subsequent sliding process of the slider 4, effectively avoiding the displacement or shaking of the mounting block 5 that may be caused by factors such as vibration and external force interference. The stable state of the mounting block 5 allows the extrusion force to be evenly applied to the workpiece, thereby improving the bending quality.

[0039] When the mounting block 5 on the right side swings and sinks to below the height of the bending station 7 under the action of the connecting rod 8, the spring 10 on the right side is in a natural state and does not apply additional force to the mounting block 5. The mounting block 5 can complete the giving way action smoothly and quickly without affecting the overall operation of the mechanism.

[0040] Furthermore, it also includes a two-dimensional moving mechanism 11 and a clamping assembly 12. The two-dimensional moving mechanism 11 is used to be set on the frame 1, and the clamping assembly 12 is rotatably set relative to the two-dimensional moving mechanism 11. The clamping assembly 12 can move in a horizontal plane with the help of the two-dimensional moving mechanism 11. The clamping assembly 12 is used to clamp the part of the workpiece to complete the bending.

[0041] Furthermore, the two-dimensional moving mechanism 11 and the clamping assembly 12 are each provided with two groups.

[0042] In this embodiment, after the front end of the workpiece is bent, the workpiece continues to be conveyed forward under the drive of the feed roller 2, ready for the rear end to bend. At this time, the front end of the workpiece is in a suspended state, which is very likely to shake, affecting the subsequent processing accuracy. The two sets of clamping assemblies 12 in this solution clamp the front end of the workpiece that has been bent, providing a stable support force for it to prevent the front end from shaking.

[0043] As the rear-end bending process progresses, the position and angle of the front end of the workpiece will continue to change. The clamping assembly 12 needs to move with it. The two-dimensional moving mechanism 11 allows the clamping assembly 12 to move arbitrarily in the horizontal plane, thereby adapting to the position change of the front end of the workpiece; and because the clamping assembly 12 is rotated relative to the two-dimensional moving mechanism 11, when the front end of the workpiece is angularly offset, the clamping assembly 12 can rotate flexibly and automatically adapt to the angle change, thereby ensuring the stability of the front end of the workpiece.

[0044] Two groups of clamping assemblies 12 are provided. By applying force simultaneously by the two groups of clamping assemblies 12, two positioning points are arranged at the front end of the workpiece, thereby improving the stability of the workpiece during the entire processing process.

[0045] Furthermore, the two-dimensional moving mechanism 11 includes a longitudinal moving rod 1101 and a transverse moving seat 1102 . The longitudinal moving rod 1101 is longitudinally slidable on the frame 1 , and the transverse moving seat 1102 is transversely slidable on the longitudinal moving rod 1101 . The clamping assembly 12 is rotatably arranged on the transverse moving seat 1102 .

[0046] Furthermore, the clamping assembly 12 includes a mounting frame 1201 and a clamping plate 1202. The mounting frame 1201 is rotatably mounted on the transverse seat 1102, and the clamping plates 1202 are slidably mounted in pairs in the mounting frame 1201 for clamping the bent portion of the workpiece.

[0047] In this embodiment, the longitudinal movement rod 1101 acts as a support for longitudinal movement, sliding along the longitudinal track on the frame 1, providing a basis for subsequent adjustment. The transverse movement seat 1102 cooperates with the longitudinal movement rod 1101 and can move transversely along the longitudinal movement rod 1101. The cooperation between the two enables the clamping assembly 12 installed on the transverse movement seat 1102 to move arbitrarily in the horizontal plane, thereby adapting to the position change of the front end of the workpiece.

[0048] The paired clamping plates 1202 slide inside and fit closely to the workpiece surface, forming a reliable clamping force to ensure that the front end of the workpiece will not loosen. When the front end of the workpiece is twisted, the mounting frame 1201 can rotate freely with the traverse seat 1102 as the axis, adapting to the angle change of the front end of the workpiece in real time, so that the clamping force is always perpendicular to the workpiece surface, ensuring the stability and effectiveness of the clamping to the greatest extent.

[0049] The designed two-dimensional moving mechanism 11 and clamping assembly 12 provide all-round protection for the stability of the workpiece during the processing of special-shaped frame strips, greatly improve the bending accuracy, and control the dimensional tolerance of each bending part of the product within a reasonable range, effectively reducing the defective rate and reducing the waste of raw materials.

[0050] Furthermore, the feeding roller 2 and the bending roller 6 have the same structure and both include a core shaft 201 and a roller body 202 . The core shaft 201 is rotatably mounted on the frame 1 or the mounting block 5 , and the roller body 202 is detachably mounted on the core shaft 201 .

[0051] Furthermore, the core shaft 201 and the roller body 202 are provided with a pin hole 203 which is interlinked with each other, and the pin hole 203 is used for inserting a locking pin 204 .

[0052] In this embodiment, facing workpieces of different specifications and cross-sectional shapes, the roller body 202 can be selected according to the specific characteristics of the workpiece. After the operator selects the appropriate roller body 202, it is sleeved on the mandrel 201. At this time, the mandrel 201 is aligned with the pin hole 203 on the roller body 202, and then the locking pin 204 is inserted into the pin hole 203, so that the roller body 202 and the mandrel 201 are tightly connected to form a stable whole, ensuring that there will be no loosening, displacement and other problems during high-intensity processing.

[0053] During the processing, the feed roller 2 clamps and feeds the workpiece forward by means of the friction between the roller body 202 and the surface of the workpiece. No matter the workpiece has a conventional rectangular cross section or a complex special-shaped cross section, it is sufficient to select the corresponding roller body 202 .

[0054] On the one hand, the versatility of the equipment is improved. There is no need to purchase a dedicated set of equipment for each specification of workpiece. Diversified production needs can be met by simply replacing the roller body 202, reducing enterprise costs. On the other hand, when dealing with small batch and multi-variety orders, switching the roller body 202 is convenient and quick, effectively shortening the production preparation time and improving production efficiency.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A continuous bending device for processing special-shaped frame strips, characterized in that: The invention comprises a frame (1), a feeding roller (2), a bearing block (3), a slider (4), a mounting block (5) and a bending roller (6), wherein the feeding roller (2) is rotatably mounted on the frame (1) and is arranged in pairs, the bearing block (3) is arranged on the frame (1), the slider (4) is slidably mounted relative to the bearing block (3), the mounting block (5) is movably mounted relative to the slider (4), and the bending roller (6) is rotatably mounted on the mounting block (5). A bending station (7) is provided above the bearing block (3); after the sliding block (4) slides, it is used to drive the mounting block (5) to move along the bending station (7) and enable the bending roller (6) to bend the workpiece. Two of the mounting blocks (5) and the bending rollers (6) are symmetrically arranged on both sides, and when the mounting block (5) on one side moves in the bending station (7), the mounting block (5) on the other side is separated from the bending station (7).

2. A continuous bending device for processing special-shaped frame strips according to claim 1, characterized in that: The bearing block (3) has a guide arc surface (301) and a bearing surface (302), the bending station (7) is located above the bearing surface (302), and after the sliding block (4) slides, it is used to drive the mounting block (5) to contact the guide arc surface (301) and the bearing surface (302) in sequence.

3. The continuous bending device for processing special-shaped frame strips according to claim 1, characterized in that: It also includes a connecting rod (8), the two ends of which are respectively hinged to the mounting block (5) and the slider (4), the bearing block (3) is provided with a slide groove (9), the slider (4) is arranged in the slide groove (9) for reciprocating sliding, and after the slider (4) slides, the mounting block (5) is driven to move by the connecting rod (8).

4. A continuous bending device for processing special-shaped frame strips according to claim 2, characterized in that: It also comprises a spring (10), the two ends of which act on the mounting block (5) and the bearing block (3) respectively, and are used to provide a force for the mounting block (5) to press downward against the bearing surface (302).

5. The continuous bending device for processing special-shaped frame strips according to claim 1, characterized in that: It also comprises a two-dimensional moving mechanism (11) and a clamping assembly (12), wherein the two-dimensional moving mechanism (11) is used to be arranged on the frame (1), and the clamping assembly (12) is rotatably arranged relative to the two-dimensional moving mechanism (11). The clamping assembly (12) can move in a horizontal plane with the aid of the two-dimensional moving mechanism (11), and the clamping assembly (12) is used to clamp the part of the workpiece that has been bent.

6. A continuous bending device for processing special-shaped frame strips according to claim 5, characterized in that: The two-dimensional moving mechanism (11) and the clamping assembly (12) are both provided in two groups.

7. The continuous bending device for processing special-shaped frame strips according to claim 5, characterized in that: The two-dimensional moving mechanism (11) comprises a longitudinal moving rod (1101) and a transverse moving seat (1102); the longitudinal moving rod (1101) is slidably arranged on the frame (1) in a longitudinal direction; the transverse moving seat (1102) is slidably arranged on the longitudinal moving rod (1101) in a transverse direction; and the clamping assembly (12) is rotatably arranged on the transverse moving seat (1102).

8. A continuous bending device for processing special-shaped frame strips according to claim 7, characterized in that: The clamping assembly (12) comprises a mounting frame (1201) and a clamping plate (1202); the mounting frame (1201) is rotatably mounted on the transverse seat (1102); and the clamping plates (1202) are slidably mounted in pairs in the mounting frame (1201) and are used to clamp the bent portion of the workpiece.

9. The continuous bending device for processing special-shaped frame strips according to claim 1, characterized in that: The feeding roller (2) and the bending roller (6) have the same structure and both comprise a core shaft (201) and a roller body (202); the core shaft (201) is rotatably mounted on the frame (1) or the mounting block (5); and the roller body (202) is detachably mounted on the core shaft (201).

10. A continuous bending device for processing special-shaped frame strips according to claim 9, characterized in that: The core shaft (201) and the roller body (202) are provided with intersecting pin holes (203), and the pin holes (203) are used for inserting locking pins (204).

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