Bending device for rectangular frame profile

Abstract

The invention discloses a rectangular frame profile bending device which is used for bending a strip-shaped profile into a rectangular frame profile and comprises a middle clamping assembly clamped in the middle of the strip-shaped profile, and a second bending assembly and a third bending assembly are arranged at the positions, on the two sides of the middle clamping assembly, of the strip-shaped profile at equal intervals correspondingly. A first bending assembly and a fourth bending assembly are arranged on the outer sides, opposite to the second bending assembly and the third bending assembly, of the strip-shaped sectional material at equal intervals, and the first bending assembly, the second bending assembly, the third bending assembly and the fourth bending assembly clamp the strip-shaped sectional material and bend the strip-shaped sectional material by 90 degrees to form the rectangular frame sectional material. The strip-shaped section bar can be bent into the rectangular section bar at a time, namely, the strip-shaped section bar can be changed into the rectangular section bar at a time instead of being bent at a single angle at a single position on the section bar.

Description

TECHNICAL FIELD

[0001] The application relates to a profile bending device, in particular to a rectangular frame profile bending device. BACKGROUND

[0002] The existing bending device is generally used for bending a profile into a fixed or non-fixed angle. A limiting device is arranged on a bending assembly to realize fixed-angle bending. When the position of the limiting device can be adjusted, the bending angle can be realized to be non-fixed, that is, multi-angle adjustment. However, the existing technology is often limited to bending the profile into a certain angle, rather than a certain shape. SUMMARY

[0003] The application aims to provide a rectangular frame profile bending device which can bend a strip-shaped profile into a rectangular profile at one time, that is, the strip-shaped profile is changed into a rectangular profile at one time, rather than bending the profile at a single position and a single angle.

[0004] To achieve the above-mentioned purpose, the application provides the following technical scheme.

[0005] The application discloses a rectangular frame profile bending device which is used for bending a strip-shaped profile into a rectangular frame profile. The device comprises a middle clamping assembly which is clamped in the middle of the strip-shaped profile. Second and third bending assemblies are arranged on the two sides of the middle clamping assembly at equal distances, respectively. First and fourth bending assemblies are arranged on the outer sides of the second and third bending assemblies at equal distances, respectively. The first, second, third and fourth bending assemblies clamp and bend the strip-shaped profile by 90 degrees to form the rectangular frame profile.

[0006] Preferably, in the above-mentioned rectangular frame profile bending device, the first, second, third and fourth bending assemblies respectively comprise a clamping die, a clamping block, a wheel die, a guide die and a sliding plate die. The wheel die is arranged between the clamping block and the guide die. The clamping die is arranged above the clamping block. The sliding plate die is arranged above the guide die.

[0007] Initially, the bottom of the strip-shaped profile is sequentially attached to the top of the clamping block, the wheel die and the guide die.

[0008] When started, the clamping die is pressed downward to clamp the strip-shaped profile between the clamping cavity formed by the clamping block. The sliding plate die is lowered to attach to the top of the strip-shaped profile. The strip-shaped profile is attached and slid in the guide cavity formed between the sliding plate die and the guide die.

[0009] When bending, the clamping die and the clamping block hold the strip-shaped profile and bend it 90° downward, the strip-shaped profile is attached to the surface of the wheel die to form a bending arc, and the strip-shaped profile is stretched in the guide cavity, and the stretched strip-shaped profile drives the slide die to slide in the stretching direction.

[0010] Preferably, in the bending device for the rectangular frame profile, the top of the clamping die is fixedly installed on the output end of the clamping cylinder, the top of the slide die is formed with a guide rail, the extension direction of the guide rail is the same as the stretching direction of the strip-shaped profile, a sliding block is slidingly installed on the guide rail, and the sliding block is fixedly installed on the output end of the pressing cylinder.

[0011] Preferably, in the bending device for the rectangular frame profile, the second bending assembly and the third bending assembly are symmetrically arranged relative to the middle clamping assembly, and the first bending assembly and the fourth bending assembly are symmetrically arranged relative to the middle clamping assembly.

[0012] Preferably, in the bending device for the rectangular frame profile, one end of the guide die of the second bending assembly is rotatably provided with a first mounting plate around its axis, the clamping block of the second bending assembly is fixedly installed on the first mounting plate, and the fixed end of the clamping cylinder of the second bending assembly is installed on the first mounting plate. When bending, the first mounting plate is rotated 90° around the axis of the guide die of the second bending assembly.

[0013] Preferably, in the bending device for the rectangular frame profile, the guide die of the first bending assembly and the wheel die are simultaneously fixedly installed on a second mounting plate, the fixed end of the pressing cylinder of the first bending assembly is fixedly installed on the second mounting plate, the second mounting plate is fixedly installed on the first mounting plate, one end of the guide die of the first bending assembly is rotatably provided with a third mounting plate around its axis, the clamping block of the first bending assembly is fixedly installed on the third mounting plate, and the fixed end of the clamping cylinder of the first bending assembly is installed on the third mounting plate. When bending, the third mounting plate is rotated 90° around the axis of the guide die of the first bending assembly.

[0014] Preferably, in the bending device for the rectangular frame profile, a rack is provided, the rack is formed with a first circular arc groove, the first circular arc groove takes the axis of the wheel die of the second bending assembly as the center, and the first mounting plate is rotatably supported on the first circular arc groove; the second mounting plate is formed with a second circular arc groove, the second circular arc groove takes the axis of the wheel die of the first bending assembly as the center, and the third mounting plate is rotatably supported on the second circular arc groove.

[0015] Preferably, in the bending device for the rectangular frame section bar, one end of the section bar is abutted against the positioning plate, and the section bar is provided with a plurality of section bars side by side.

[0016] Preferably, in the bending device for the rectangular frame section bar, the interval between the first bending assembly, the second bending assembly, the middle clamping assembly, the third bending assembly and the fourth bending assembly is adjustable.

[0017] Preferably, in the bending device for the rectangular frame section bar, one end of the guide die and the slide die is respectively provided with a first cold and hot gas hole, the first cold and hot gas hole is communicated with the gas holes densely arranged in the guide cavity, one end of the wheel die is provided with a second cold and hot gas hole, the second cold and hot gas hole is communicated with the gas holes arranged on the surface of the wheel die, one end of the clamping block is provided with a single cold gas hole, the single cold gas hole is communicated with the gas holes arranged in the clamping cavity, the first cold and hot gas hole and the second cold and hot gas hole are respectively connected to a cold and hot gas source, and the single cold gas hole is connected to a cold gas source.

[0018] Compared with the prior art, the technical scheme has the advantages that the section bar is changed from a strip shape to a rectangular shape at one time, and the bending efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The bending initial time schematic view of the bending device for the rectangular frame section bar in the embodiment of the present application is shown.

[0021] Figure 2 The bending completion time schematic view of the bending device for the rectangular frame section bar in the embodiment of the present application is shown.

[0022] Figure 3 The another view schematic view of the bending initial time of the bending device for the rectangular frame section bar in the embodiment of the present application is shown.

[0023] Figure 4 The another view schematic view of the bending completion time of the bending device for the rectangular frame section bar in the embodiment of the present application is shown.

[0024] Figure 5 The Figure 3 The enlarged view of the middle A.

[0025] Figure 6shown is Figure 4 enlarged view at B. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0027] In combination Figures 1-6 As shown, the bending device 100 for bending the rectangular frame profile 300 from the strip-shaped profile 200 includes a middle clamping assembly 105 clamped in the middle of the strip-shaped profile 200, a second bending assembly 102 and a third bending assembly 103 are respectively arranged equidistantly on the two sides of the middle clamping assembly 105, a first bending assembly 101 and a fourth bending assembly 104 are respectively arranged equidistantly on the outer sides of the strip-shaped profile 200 opposite to the second bending assembly 102 and the third bending assembly 103, and the first bending assembly 101, the second bending assembly 102, the third bending assembly 103 and the fourth bending assembly 104 respectively clamp and bend the strip-shaped profile 200 by 90° to form the rectangular frame profile 300.

[0028] In this embodiment, the four corners of the strip-shaped profile are bent out by the four bending assemblies respectively, and the bending of the rectangular frame profile is realized in one step, which is high in efficiency and speed.

[0029] Further, the first bending assembly 101, the second bending assembly 102, the third bending assembly 103 and the fourth bending assembly 104 respectively include a clamping die 106, a clamping block 107, a wheel die 108, a guide die 109 and a sliding plate die 110, the wheel die 108 is arranged between the clamping block 107 and the guide die 109, the clamping die 106 is arranged above the clamping block 107, and the sliding plate die 110 is arranged above the guide die 109.

[0030] Initially, the bottom of the strip-shaped profile 200 is sequentially attached to the top of the clamping block 107, the wheel die 108 and the guide die 109 for support;

[0031] When started, the clamping die 106 is pressed downward to clamp the strip-shaped profile 200 between the clamping cavity 111 formed by the clamping block 107, the sliding plate die 110 is lowered to attach to the top of the strip-shaped profile 200, and the strip-shaped profile 200 is attached and slid between the sliding plate die 110 and the guide die 109 to form the guide cavity 112;

[0032] When bending, the clamping die 106 and the clamping block 107 hold the strip-shaped profile 200 and bend it downward by 90°, the strip-shaped profile 200 is attached to the surface of the wheel die 108 to form a bending arc, the strip-shaped profile 200 is stretched in the guide cavity 112, and the stretched strip-shaped profile 200 drives the sliding plate die 110 to slide in the stretching direction, so that the shape of the stretched profile is always consistent with the guide cavity, that is, the deformation is ensured.

[0033] In this embodiment, each bending assembly includes a clamping die 106, a clamping block 107, a wheel die 108, a guide die 109, and a sliding plate die 110. The clamping die 106 and the clamping block 107 form a clamping cavity therebetween for clamping the profile and bending the profile by rotating. The guide die 109 and the sliding plate die 110 form a guide cavity therebetween for keeping the shape of the profile at the stretching position unchanged. The guide die is an arc angle, so that the profile is shaped as an arc angle bending.

[0034] Further, the top of the clamping die 106 is fixedly installed on the output end of the clamping cylinder 113, the top of the sliding plate die 110 is formed with a guide rail 114, the extension direction of the guide rail 114 is the same as the stretching direction of the strip-shaped profile 200, a sliding block 115 is slidingly installed on the guide rail 114, and the sliding block 115 is fixedly installed on the output end of the pressing cylinder 116. When bending, the stretching of the profile will drive the sliding plate die to slide, which is better for plasticizing the profile. A restoring spring is arranged between the sliding block and the sliding plate die, which restores the sliding plate die to the original position when the bending is completed.

[0035] In this embodiment, initially, the clamping die 106 and the sliding plate die 110 are located above the profile, and they are synchronously lowered when bending. The two cylinders are driven respectively. Since the sliding plate die needs to move, the top of the sliding plate die is provided with a sliding rail for moving along the sliding rail to prevent the sliding plate die from remaining stationary, which causes the profile to stretch and deform, resulting in breakage.

[0036] Further, the second bending assembly 102 and the third bending assembly 103 are symmetrically arranged relative to the middle clamping assembly 105, and the first bending assembly 101 and the fourth bending assembly 104 are symmetrically arranged relative to the middle clamping assembly 105.

[0037] In this embodiment, the two are symmetrically arranged, so that the final bending forms the required rectangular frame profile.

[0038] Further, one end of the guide die 109 of the second bending assembly 102 is rotatably provided with a first mounting plate 117 about the axis thereof, the clamping block 107 of the second bending assembly 102 is fixedly installed on the first mounting plate 117, and the fixed end of the clamping cylinder 113 of the second bending assembly 102 is installed on the first mounting plate 117. When bending, the first mounting plate 117 is rotated by 90° about the axis of the guide die 109 of the second bending assembly 102.

[0039] In this embodiment, the first mounting plate rotates around the axis of the guide die, thereby driving the rotation of the clamping block and the clamping cylinder, and realizing the 90° bending.

[0040] Further, the guide die 109 and the wheel die 108 of the first bending assembly 101 are fixedly installed on the second mounting plate 118, the fixed end of the pressing cylinder 116 of the first bending assembly 101 is fixedly installed on the second mounting plate 118, the second mounting plate 118 is fixedly installed on the first mounting plate 117, one end of the guide die 109 of the first bending assembly 101 is rotatably arranged around the axis thereof, the clamping block 107 of the first bending assembly 101 is fixedly installed on the third mounting plate 119, the fixed end of the clamping cylinder 113 of the first bending assembly 101 is installed on the third mounting plate 119, and the third mounting plate 119 rotates 90° around the axis of the guide die 109 of the first bending assembly 101 during bending.

[0041] In this embodiment, since the second bending assembly and the third bending assembly bend the profile to the vertical state during bending, the first bending assembly and the second bending assembly need to be synchronously turned to the corresponding positions and synchronously realize the bending of themselves, so that through the installation of the second mounting plate and the third mounting plate, the first mounting plate is installed and turned to the corresponding position through the turning of the first mounting plate, and then the third mounting plate is rotated around the guide die of the first bending assembly 101 to realize the bending function of itself.

[0042] Further, the rack 120 is provided, the first circular arc groove 121 is formed on the rack 120, the first circular arc groove 121 takes the axis of the wheel die 108 of the second bending assembly 102 as the center, and the first mounting plate 117 is rotatably supported on the first circular arc groove 121; the second circular arc groove 122 is formed on the second mounting plate 118, the second circular arc groove 122 takes the axis of the wheel die 108 of the first bending assembly 101 as the center, and the third mounting plate 119 is rotatably supported on the second circular arc groove 122.

[0043] In this embodiment, the rotation of the first mounting plate and the third mounting plate is supported by the two circular arc grooves, and the rotation accuracy is ensured.

[0044] Further, one end of the strip-shaped profile 200 abuts against the positioning plate 123, and a plurality of strip-shaped profiles 200 are arranged side by side.

[0045] In this embodiment, the positioning plate is used to accurately position the bending position, and the bending position is prevented from being inaccurate, and since a plurality of profiles are arranged side by side, only the corresponding side-by-side cavities need to be formed in each die, and the bending efficiency is greatly improved, and a plurality of bending can be realized at a time.

[0046] Further, the distance between the first bending assembly 101, the second bending assembly 102, the middle clamping assembly 105, the third bending assembly 103 and the fourth bending assembly 104 can be adjusted.

[0047] In this embodiment, the bending of the special-shaped rectangular frame can be realized.

[0048] Further, one end of the guide die 109 and the slide die 110 is respectively provided with a first cold-hot air hole 124, the first cold-hot air hole 124 is communicated with the air holes (not shown in the figure) densely arranged in the guide cavity 112, one end of the wheel die 108 is provided with a second cold-hot air hole 125, the second cold-hot air hole 125 is communicated with the air holes (not shown in the figure) arranged on the surface of the wheel die 108, one end of the clamping block 107 is provided with a single cold air hole 126, the single cold air hole 126 is communicated with the air holes (not shown in the figure) arranged in the clamping cavity 111, the first cold-hot air hole 124 and the second cold-hot air hole 125 are respectively connected to the cold-hot air source, and the single cold air hole 126 is connected to the cold air source.

[0049] In this embodiment, in the normal state, the slightly soft profiles such as aluminum profiles can be bent, and when the plastic profiles need to be bent, such as the luggage seal, direct bending cannot play a shaping role, so first the hot air needs to be passed to heat the profile, then the cold air is passed after bending to shape, and finally the rectangular bending of the plastic profile is realized. Since the clamping cavity needs to clamp the profile, heating is not required, but the hot air released by other dies will diffuse to the clamping cavity, so cold air is required to cool down, and therefore the single cold air hole is provided. The profiles in the wheel die and the guide cavity need to be deformed and shaped, so cold-hot air is required to realize heating and cooling, respectively.

[0050] In summary, the technical scheme can not only realize the bending of ordinary plastic profiles such as aluminum profiles into rectangular frames, but also realize the bending of plastic profiles into rectangular frames. Moreover, the technical scheme is efficient and reliable.

[0051] It should be noted that in this document, relationship terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0052] The above description is only a specific implementation of the present application. It should be pointed out that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A bending device for a rectangular frame section for bending a bar section into a rectangular frame section, characterized in that, The first bending assembly, the second bending assembly, the third bending assembly and the fourth bending assembly respectively comprise a clamping die, a clamping block, a wheel die, a guide die and a sliding plate die, the wheel die is arranged between the clamping block and the guide die, the clamping die is arranged above the clamping block, and the sliding plate die is arranged above the guide die.

2. The bending apparatus for rectangular frame sections according to claim 1, characterized in that Initially, the bottom of the strip-shaped profile is sequentially attached and supported on the top of the clamping block, the wheel die and the guide die. When started, the clamping die is pressed downward to clamp the strip-shaped profile between the clamping cavities formed by the clamping block, the sliding plate die is attached to the top of the strip-shaped profile, and the strip-shaped profile is attached and slides in the guide cavities formed between the sliding plate die and the guide die. When bent, the clamping die and the clamping block clamp the strip-shaped profile and bend it downward by 90°, the strip-shaped profile is attached to the surface of the wheel die to form a bending radius, and the strip-shaped profile is stretched in the guide cavities, and the stretched strip-shaped profile drives the sliding plate die to slide in the stretching direction. The top of the clamping die is fixedly installed on the output end of the clamping cylinder, the top of the sliding plate die is formed with a guide rail, the extension direction of the guide rail is the same as the stretching direction of the strip-shaped profile, a sliding block is slidably installed on the guide rail, and the sliding block is fixedly installed on the output end of the pressing cylinder.

3. The bending apparatus for rectangular frame sections according to claim 2, characterized in that The second bending assembly and the third bending assembly are symmetrically arranged relative to the middle clamping assembly, and the first bending assembly and the fourth bending assembly are symmetrically arranged relative to the middle clamping assembly.

4. The bending apparatus for rectangular frame sections according to claim 3, wherein One end of the guide die of the second bending assembly is rotatably arranged around the axis thereof and is provided with a first mounting plate, the clamping block of the second bending assembly is fixedly installed on the first mounting plate, and the fixed end of the clamping cylinder of the second bending assembly is installed on the first mounting plate.

5. The bending apparatus for rectangular frame sections according to claim 4, wherein The guide die and the wheel die of the first bending assembly are simultaneously fixedly installed on a second mounting plate, the fixed end of the pressing cylinder of the first bending assembly is fixedly installed on the second mounting plate, the second mounting plate is fixedly installed on the first mounting plate, one end of the guide die of the first bending assembly is rotatably arranged around the axis thereof and is provided with a third mounting plate, the clamping block of the first bending assembly is fixedly installed on the third mounting plate, and the fixed end of the clamping cylinder of the first bending assembly is installed on the third mounting plate.

6. The bending apparatus for rectangular frame sections according to claim 5, wherein ​ 7. The bending apparatus for rectangular frame sections according to claim 6, characterized in that The rack is provided with a first circular arc groove with the axis of the wheel mold of the second bending assembly as the center, and the first mounting plate is rotationally supported in the first circular arc groove; the second mounting plate is provided with a second circular arc groove with the axis of the wheel mold of the first bending assembly as the center, and the third mounting plate is rotationally supported in the second circular arc groove.

8. The bending apparatus for rectangular frame sections according to claim 1, wherein One end of the strip-shaped section is abutted against a positioning plate, and the strip-shaped section is provided with a plurality of strip-shaped sections arranged side by side.

9. The bending apparatus for rectangular frame sections according to claim 1, wherein The distance between the first bending assembly, the second bending assembly, the middle clamping assembly, the third bending assembly and the fourth bending assembly is adjustable.

10. The bending apparatus for rectangular frame sections according to claim 2, wherein One end of the guide mold and the slide plate mold is respectively provided with a first cold and hot air hole, the first cold and hot air hole is communicated with the air holes densely arranged in the guide cavity, one end of the wheel mold is provided with a second cold and hot air hole, the second cold and hot air hole is communicated with the air holes arranged on the surface of the wheel mold, one end of the clamping block is provided with a single cold air hole, the single cold air hole is communicated with the air holes arranged in the clamping cavity, the first cold and hot air hole and the second cold and hot air hole are respectively connected to a cold and hot air source, and the single cold air hole is connected to a cold air source.

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