Arc bending device of double-face circle bending machine

Abstract

The utility model belongs to the technical field of bending machines, and particularly relates to an arc bending device of a double-sided bending machine, which comprises a first arc bending roll shaft and a second arc bending roll shaft which are arranged in parallel at a certain interval, the bottom ends of the first arc bending roll shaft and the second arc bending roll shaft are jointly and fixedly connected with a rotary plate, and the second arc bending roll shaft is rotatably connected with an auxiliary arc bending roll. The first arc bending roller shaft is provided with an arc bending roller assembly, the top end of the first arc bending roller shaft and the top end of the second arc bending roller shaft are sleeved with pressing plates, and the top end of the first arc bending roller shaft is provided with a driving assembly used for driving the pressing plates to be close to or away from the arc bending roller assembly. According to the utility model, the problems of wrinkling and unsmooth discharging of the material in the arc bending process can be solved, so that the product quality is improved, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of round bending machine, especially relates to a bending device of double-sided round bending machine. BACKGROUND

[0002] With the progress and development of human society, the application fields and places of the profile with certain strength and shape are more and more, in order to make the profile and other materials meet different use and installation requirements, it needs to be made into other products with certain geometric shape and size through bending, rolling and other ways, such products can be used in different scenes such as decoration or building, meet different social needs, the round bending machine is the instrument that the profile is bent or rolled into other products.

[0003] The invention patent with the application number CN202210887963.2 discloses a double-sided round bending mechanism, including a bottom plate, the top surface of the bottom plate is fixedly connected with two first support plates, one end of the first support plate away from the bottom plate is fixedly connected with a cam plate, the cam plate is provided with a bending device, the bottom plate is provided with a guide device at the position between the two first support plates, the guide device is installed with a driving device for driving the bending device to move, the cam plate is provided with a first cam groove and a second cam groove, the first cam groove and the second cam groove are both in the shape of a large semicircle, one end of the first cam groove is provided with a first semicircular hole, the center of the first semicircular hole coincides with the center of the second cam groove, one end of the second cam groove is provided with a second semicircular hole, the center of the second semicircular hole coincides with the center of the first cam groove; the invention is reasonably designed, realizes the bidirectional bending of the material on one equipment, solves the problem that the traditional round bending machine can only bend the material on one side, but the double-sided round bending mechanism will appear the problems of wrinkling and unsmooth discharging in the bending process, which affects the product quality and work efficiency, how to improve the bending device to avoid wrinkling in the bending process is the main problem to be solved. UTILITY MODEL CONTENTS

[0004] The main technical problem to be solved by the utility model is to provide a bending device of double-sided round bending machine, which can solve the problems of wrinkling and unsmooth discharging of the material in the bending process.

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] A bending device of double-sided round bending machine, including first bending roller shaft and second bending roller shaft which are arranged in parallel at a certain distance, the bottom ends of the first bending roller shaft and the second bending roller shaft are fixedly connected with a rotary plate, a secondary bending roller is rotatably connected to the second bending roller shaft, a bending roller assembly is arranged on the first bending roller shaft, a pressing plate is sleeved on the top ends of the first bending roller shaft and the second bending roller shaft, and a driving assembly for driving the pressing plate to move close to or away from the bending roller assembly is arranged on the top end of the first bending roller shaft.

[0007] The utility model discloses the further optimization of above-mentioned technical scheme:

[0008] The bending roller assembly includes a first bending roller, a second bending roller and a third bending roller, the first bending roller, the second bending roller and the third bending roller are sequentially rotatably connected on the first bending roller shaft from bottom to top, a first pressing groove is arranged between the first bending roller and the second bending roller, and a second pressing groove is arranged between the second bending roller and the third bending roller.

[0009] Further optimization: the first bending roller is internally provided with a first tapered roller bearing, and the third bending roller is internally provided with a second tapered roller bearing.

[0010] Further optimization: the pressing plate is internally provided with a first through hole and a second through hole, the first through hole is slidably connected with the first bending roller shaft, and the second through hole is slidably connected with the second bending roller shaft.

[0011] Further optimization: the driving assembly includes a pneumatic cylinder, the pneumatic cylinder is fixedly connected with the first bending roller shaft through a telescopic rod, and a cylinder body of the pneumatic cylinder is fixedly connected with the pressing plate.

[0012] Further optimization: the telescopic rod of the pneumatic cylinder is fixedly connected with the first bending roller shaft through a connecting shaft, and the connecting shaft is threadedly connected with the first bending roller shaft and the telescopic rod of the pneumatic cylinder at two ends.

[0013] The utility model discloses the above-mentioned technical scheme, the structure is reasonable, in the material bending process, the first pressing groove and the second pressing groove are used for the lower side plate and the upper side plate of material to pass through, and under the interaction of the stress of the first bending roller and the second bending roller, the first pressing groove is narrowed, and the lower side plate can be pressed tightly, under the interaction of the stress of the second bending roller and the third bending roller, the second pressing groove is narrowed, and the upper side plate can be pressed tightly, so that the material does not appear wrinkle in the bending process is guaranteed, and after the bending is completed, the pneumatic cylinder drives the pressing plate to move away from the bending roller, the first bending roller, the second bending roller and the third bending roller no longer bear the pressure of the pressing plate, the first pressing groove and the second pressing groove are widened, the material passes through smoothly, so that the product quality is improved, and the work efficiency is improved.

[0014] The utility model is further illustrated below in connection with the drawings and examples. DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model embodiment;

[0016] Figure 2 It is the cut structure schematic view of the utility model embodiment;

[0017] Figure 3 It is the position structure schematic view of the material in the utility model embodiment;

[0018] Figure 4 It is the cross section structure schematic drawing of material in the embodiment of the utility model.

[0019] In the figure: 1- first arc bending roller shaft;2- second arc bending roller shaft;3- rotary plate;4- arc bending roller assembly;401- first arc bending roller;4011- first mounting hole;402- second arc bending roller;4021- avoid slot;4022- second mounting hole;403- third arc bending roller;4031- third mounting hole;404- first pressing groove;405- second pressing groove;406- first tapered roller bearing;407- second tapered roller bearing;408- spacer ring;5- secondary arc bending roller;6- pressing plate;601- first through hole;602- second through hole;7- drive assembly;701- pneumatic cylinder;702- connecting shaft;703- spacer;8- material;801- lower side plate;802- upper side plate;803- intermediate side plate. DETAILED DESCRIPTION

[0020] As Figures 1-4 shown: a kind of arc bending device of double-side arc bending machine, including the first arc bending roller shaft 1 and the second arc bending roller shaft 2 of parallel arrangement at a certain distance, the bottom end of first arc bending roller shaft 1 and second arc bending roller shaft 2 is commonly fixed with rotary plate 3, second arc bending roller shaft 2 is rotatably connected with secondary arc bending roller 5, first arc bending roller shaft 1 is provided with arc bending roller assembly 4, the top of first arc bending roller shaft 1 and second arc bending roller shaft 2 is provided with pressing plate 6, and the top of first arc bending roller shaft 1 is provided with drive assembly 7 for driving pressing plate 6 to be close to or away from arc bending roller assembly 4.

[0021] In this way, drive assembly 7 drives pressing plate 6 to press arc bending roller assembly 4, and then the side plate of material 8 is pressed by arc bending roller assembly 4, so that the wrinkling of material 8 in the process of arc bending is guaranteed;And after bending is completed, drive assembly 7 drives pressing plate 6 to be away from arc bending roller assembly 4, and arc bending roller assembly 4 no longer presses material 8, so that material 8 can smoothly pass between arc bending roller assembly 4 and secondary arc bending roller 5.

[0022] Arc bending roller assembly 4 includes first arc bending roller 401, second arc bending roller 402 and third arc bending roller 403, which are sequentially sleeved on first arc bending roller shaft 1 from bottom to top, and first arc bending roller 401, second arc bending roller 402 and third arc bending roller 403 are rotatably connected with first arc bending roller shaft 1.

[0023] First arc bending roller 401 and second arc bending roller 402 are provided with first pressing groove 404, and second arc bending roller 402 and third arc bending roller 403 are provided with second pressing groove 405.

[0024] In this way, in the bending process of the material 8, the first pressing groove 404 and the second pressing groove 405 are used for the lower side plate 801 and the upper side plate 802 of the material 8 to pass through, and under the force interaction of the first bending roller 401 and the second bending roller 402, the first pressing groove 404 is narrowed to press the lower side plate 801, and under the force interaction of the second bending roller 402 and the third bending roller 403, the second pressing groove 405 is narrowed to press the upper side plate 802, so as to ensure that the material 8 will not wrinkle in the bending process; and after the bending is completed, the first bending roller 401, the second bending roller 402 and the third bending roller 403 no longer bear the pressure of the pressing plate 6, the first pressing groove 404 and the second pressing groove 405 are widened, and the material 8 can pass through smoothly.

[0025] The outer surface of the second bending roller 402 is provided with two avoiding grooves 4021 in the axial direction, and the avoiding grooves 4021 are correspondingly arranged with the middle side plates 803 of the material 8, so as to facilitate the two middle side plates 803 of the material 8 to pass through smoothly.

[0026] In addition to the embodiment, the number of avoiding grooves 4021 can also be one or more than two, so as to match different specifications of the material 8.

[0027] The first bending roller 401 is provided with a first mounting hole 4011, and the first mounting hole 4011 is provided with a first tapered roller bearing 406, and the inner ring of the first tapered roller bearing 406 is in sliding connection with the first bending roller shaft 1.

[0028] The first bending roller shaft 1 is provided with a spacer ring 408 below the first tapered roller bearing 406, and when the bending roller assembly 4 is in a pressing state, the bottom end of the inner ring of the first tapered roller bearing 406 is in close contact with the top end of the spacer ring 408.

[0029] The second bending roller 402 is provided with two second mounting holes 4022, and the two second mounting holes 4022 are provided with bearings, and the inner rings of the bearings are in sliding connection with the first bending roller shaft 1.

[0030] The third bending roller 403 is provided with a third mounting hole 4031, and the third mounting hole 4031 is provided with a second tapered roller bearing 407, and the inner ring of the second tapered roller bearing 407 is in sliding connection with the first bending roller shaft 1.

[0031] When the bending roller assembly 4 is in a pressing state, the top end of the second tapered roller bearing 407 is in close contact with the bottom surface of the pressing plate 6.

[0032] In this way, the first bending roller 401 and the third bending roller 403 at both ends of the bending roller assembly 4 are supported by the tapered roller bearings, which can bear radial force and axial force, and can ensure that the bending roller can rotate around the first bending roller shaft 1 and transmit the clamping force from the driving assembly 7.

[0033] The pressing plate 6 is provided with a first through hole 601 and a second through hole 602, the first through hole 601 is in sliding connection with the first bending roller shaft 1, and the second through hole 602 is in sliding connection with the second bending roller shaft 2.

[0034] The driving assembly 7 comprises a pneumatic cylinder 701, the telescopic rod of the pneumatic cylinder 701 is fixedly connected with the first bending roller shaft 1 through a connecting shaft 702, and the cylinder body of the pneumatic cylinder 701 is fixedly connected with the pressing plate 6 through a spacer 703.

[0035] The connecting shaft 702 is threadedly connected with the first bending roller shaft 1 and the telescopic rod of the pneumatic cylinder 701 at both ends.

[0036] For those skilled in the art, according to the teaching of the present application, the changes, modifications, replacements and variations made to the embodiments without departing from the principles and spirits of the present application still fall within the protection scope of the present application.

Claims

1. A bending device for a double-sided bending machine, comprising a first bending roller (1) and a second bending roller (2) arranged parallel to each other at a certain distance, wherein a rotary plate (3) is fixedly connected to the bottom end of the first bending roller (1) and the second bending roller (2), characterized in that: A secondary bending roller (5) is rotatably connected to the second bending roller shaft (2), and a bending roller assembly (4) is provided on the first bending roller shaft (1). A pressure plate (6) is sleeved on the top end of the first bending roller shaft (1) and the second bending roller shaft (2). A drive assembly (7) for driving the pressure plate (6) to approach or move away from the bending roller assembly (4) is provided on the top end of the first bending roller shaft (1).

2. The bending device of a double-sided bending machine according to claim 1, characterized in that: The curved roller assembly (4) includes a first curved roller (401), a second curved roller (402) and a third curved roller (403). The first curved roller (401), the second curved roller (402) and the third curved roller (403) are rotatably connected to the first curved roller shaft (1) from bottom to top. A first pressing groove (404) is provided between the first curved roller (401) and the second curved roller (402), and a second pressing groove (405) is provided between the second curved roller (402) and the third curved roller (403).

3. The bending device of a double-sided bending machine according to claim 2, characterized in that: The first curved roller (401) is equipped with a first tapered roller bearing (406), and the third curved roller (403) is equipped with a second tapered roller bearing (407).

4. The bending device of a double-sided bending machine according to claim 3, characterized in that: The pressure plate (6) has a first through hole (601) and a second through hole (602). The first through hole (601) is slidably connected to the first curved roller shaft (1), and the second through hole (602) is slidably connected to the second curved roller shaft (2).

5. The bending device of a double-sided bending machine according to claim 4, characterized in that: The drive assembly (7) includes a cylinder (701), the telescopic rod of the cylinder (701) is fixedly connected to the first curved roller shaft (1), and the cylinder body of the cylinder (701) is fixedly connected to the pressure plate (6).

6. The bending device of a double-sided bending machine according to claim 5, characterized in that: The telescopic rod of the cylinder (701) is fixedly connected to the first curved roller shaft (1) via a connecting shaft (702). The two ends of the connecting shaft (702) are threadedly connected to the first curved roller shaft (1) and the telescopic rod of the cylinder (701), respectively.

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