Metal material bending machine for building decoration

Abstract

The invention relates to the technical field of building decoration material processing, in particular to a metal material bending machine for building decoration, which comprises a machine base, two rotating shafts, two supporting battens, a pressure head and a transmission mechanism, a bending area is formed between the two supporting battens, the two supporting battens have a first working state and a second working state, and the two rotating shafts are arranged on the machine base. In the first working state, the plate surfaces of the two supporting battens are located on the same horizontal plane, and in the second working state, the plate surfaces of the two supporting battens are oppositely arranged and jointly form a V-shaped bending groove; when the pressing head presses the plate, the two rotating shafts can be driven to synchronously rotate in the opposite directions under the action of the transmission mechanism, so that the two supporting strip plates are switched from the first working state to the second working state, the two supporting strip plates are synchronously driven to inwards extrude and push the plate, and the plates on the two sides of the outer side of the bending point are gathered towards the bending point; therefore, the stretching amount can be compensated, and the possibility that the outer side of the bending point of the plate is torn is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of building decoration material processing, in particular to a metal material bending machine used for building decoration. Background Art

[0002] Building decoration refers to a series of activities to beautify, improve the functionality and protect the internal and external spaces of a building after the main structure of the building is completed. Its purpose is to enhance the aesthetics, comfort and practicality of the building through decorative materials and techniques, while meeting functional and safety requirements.

[0003] In the process of building decoration, it is usually necessary to bend various plates and pipes. When bending the plates, a plate bending machine is needed. In the related technology, for example, Chinese patent CN219093243U discloses a processing bending machine. When the processing bending machine is used, one end of the plate is attached to the first slider, and then the second slider is pushed to move the fixed column to the inside of the cylinder, and the other end of the plate is attached to the second slider. By rotating the positioning sleeve, the positioning sleeve is rotated to the inside of the annular groove, so that the cylinder and the fixed column are fixed and the plate is kept horizontal. Then the hydraulic cylinder is started to lower the bending seat, and the bending seat is moved to the bending groove to bend the plate.

[0004] However, there are also some problems in the actual plate bending process of the above-mentioned processing bending machine: the outer side of the bending point of the plate will inevitably stretch to both sides due to the strong bending force. As the degree of stretching continues to increase, the plate is prone to tearing. Once the plate is torn, it will not only cause the plate in processing to be directly scrapped, resulting in a waste of raw materials, but also delay the subsequent decoration construction process and reduce overall work efficiency. Summary of the invention

[0005] Based on this, it is necessary to provide a metal material bending machine for building decoration to address the problem of high scrap rate when bending plates in the current building decoration process, which affects the decoration efficiency.

[0006] The above purpose is achieved through the following technical solutions: A metal material bending machine for building decoration, the metal material bending machine for building decoration is configured to be able to bend a plate, and comprises: Machine base; Two rotating shafts are arranged on the machine base in parallel and at intervals, and both can rotate around their own axes, and the two rotating shafts rotate in opposite directions; Two support strips are respectively arranged in parallel on the two rotating shafts, a bending area is formed between the two support strips, and the two support strips are configured to have a first working state and a second working state. When in the first working state, the board surfaces of the two support strips are located on the same horizontal plane and are configured to be able to place the board. When in the second working state, the board surfaces of the two support strips are arranged opposite to each other, and a V-shaped bending groove is formed between the two support strips; A pressing head is arranged on the machine base and is located above the bending area, and can slide up and down in a vertical direction to be pressed on the plate; The transmission mechanism is configured to drive the two rotating shafts to rotate synchronously in opposite directions when the pressing head presses the plate, so as to drive the two supporting strips to switch from the first working state to the second working state, so that the two supporting strips can synchronously squeeze and push the plate inward to compensate for the stretching outside the bending point of the plate.

[0007] Furthermore, the transmission mechanism includes a transmission assembly, which includes a bidirectional rack and two gears. The bidirectional rack extends in a vertical direction, is arranged on the pressure head, and can slide along the axial direction of the rotating shaft. The bidirectional rack is simultaneously located between the two rotating shafts; the two gears are respectively fixedly sleeved on the two rotating shafts, and respectively mesh with two sets of teeth of the bidirectional rack.

[0008] Furthermore, there are two transmission assemblies, which are symmetrically arranged.

[0009] Furthermore, the metal material bending machine for building decoration also includes a first driving member, which is configured to provide a driving force for the sliding of the bidirectional rack; the first driving member is arranged at the top of the pressure head and close to the end, and the output end of the first driving member faces the bidirectional rack and is arranged on the bidirectional rack; the first driving member is a first hydraulic cylinder or a pneumatic cylinder or an electric cylinder.

[0010] Furthermore, the transmission mechanism also includes two second driving members, and the two second driving members are configured to synchronously drive the two rotating shafts to rotate in opposite directions; the second driving member is a driving motor, and the driving motor is arranged on the machine base, and the motor shafts of the two driving motors are both facing the rotating shaft and are coaxially arranged on the two rotating shafts respectively.

[0011] Furthermore, the metal material bending machine for building decoration also includes a third driving component, which is configured to provide a driving force for the sliding of the pressing head; the third driving component is a second hydraulic cylinder, which is arranged on the machine base, and the axis of the output shaft extends in the vertical direction and is fixedly arranged on the pressing head.

[0012] Furthermore, the side walls of the two supporting strips are both chamfered.

[0013] Furthermore, the metal material bending machine used for building decoration bends the plate at least twice when bending the plate.

[0014] The beneficial effects of the present invention are: The metal material bending machine for building decoration provided by the present invention first places the plate on two supporting strips during the plate bending and forming process, then presses the pressure head onto the plate, and then drives the pressure head to move downward in the vertical direction, and under the action of the transmission mechanism, drives the two rotating shafts to rotate synchronously in opposite directions, so as to drive the two supporting strips to switch from the first working state to the second working state, so that the two supporting strips can synchronously squeeze and push the plate inward, on the one hand, the plates on both sides outside the bending point gather toward the bending point, thereby effectively compensating for the stretching of the plate outside the bending point due to the force during the bending process, and reducing the possibility of tearing outside the bending point of the plate, and on the other hand, the rotation of the supporting strips can assist and actively bend the plate, which is beneficial to improving the bending effect.

[0015] Furthermore, when bending the plate, bending the plate at least twice can enhance the bending effect of the plate, reduce the springback of the plate, and improve the bending accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a metal material bending machine for building decoration provided by an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure at center A; Figure 3 A schematic diagram of the front view of a metal material bending machine for building decoration provided by an embodiment of the present invention; Figure 4 A schematic cross-sectional view of a metal material bending machine for building decoration provided by an embodiment of the present invention Figure 1 ; Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure at B in the middle; Figure 6 A schematic cross-sectional view of a metal material bending machine for building decoration provided by an embodiment of the present invention Figure 2 ; Figure 7 for Figure 6 Schematic diagram of the partial enlarged structure at point C in the middle.

[0017] in: 1. Machine base; 101. Working platform; 102. Support platform; 103. Gantry; 2. Rotation axis; 3. Support strips; 4. Press head; 5. Transmission mechanism; 501. Transmission assembly; 5011. Bidirectional rack; 5012. Gear; 6. The first hydraulic cylinder; 7. Second hydraulic cylinder. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] like Figures 1 to 7As shown, the metal material bending machine for building decoration provided by the embodiment of the present invention is configured to be able to bend plates, and is arranged to include a machine base 1, two rotating shafts 2, two supporting strips 3, a pressing head 4 and a transmission mechanism 5. The two rotating shafts 2 are arranged on the machine base 1 in parallel and at intervals, and both can rotate around their own axes, and the two rotating shafts 2 have opposite directions; the two supporting strips 3 are arranged on the two rotating shafts 2 in parallel, and a bending area is formed between the two supporting strips 3. The two supporting strips 3 are configured to have a first working state and a second working state. When in the first working state, the plate surfaces of the two supporting strips 3 are located on the same horizontal plane and are configured to be able to place plates. When in the second working state, the plate surfaces of the two supporting strips 3 are arranged opposite to each other, and a V-shaped bending groove is formed between the two supporting strips 3; the pressing head 4 is arranged on the machine base 1 and is located above the bending area, and can slide up and down in the vertical direction to be pressed on the plate; the transmission mechanism 5 is configured to drive the two rotating shafts 2 to rotate synchronously in opposite directions when the pressing head 4 presses the plate, so as to drive the two supporting strips 3 to switch from the first working state to the second working state, so that the two supporting strips 3 can synchronously squeeze and push the plate inward to compensate for the stretching outside the bending point of the plate.

[0022] Specifically in this embodiment, in order to facilitate the installation of the rotating shaft 2, as shown in FIG. Figure 1 As shown, the machine base 1 is configured to have a working platform 101 and two support platforms 102. The two support platforms 102 are both arranged on the top of the working platform 101, and are spaced apart and arranged side by side in the front-to-back direction. When installed, the axis of the rotating shaft 2 extends in the front-to-back direction, and the rear end is rotatably inserted in the support platform 102 located on the rear side, and the front end is rotatably inserted in the support platform 102 located on the front side, and the two rotating shafts 2 are spaced apart and arranged in the left-to-right direction.

[0023] The support strip 3 extends in the front-to-back direction during installation and is arranged on the circumferential side wall of the rotating shaft 2. Figure 5 As shown, the two support strips 3 are in the first working state, and the board surfaces of the two support strips 3 are located on the same horizontal plane to facilitate positioning and placing of the board; Figure 7 As shown, the two support strips 3 are in the second working state, the plate surfaces of the two support strips 3 are arranged opposite to each other, and a V-shaped bending groove is formed between the two support strips 3 .

[0024] To facilitate the installation of the pressure head 4, Figure 1As shown, the machine base 1 is configured to further include a gantry 103, which is arranged on the top of the working platform 101 during installation and mounted directly above the two support platforms 102. The pressure head 4 is arranged on the gantry 103 during installation and is located between the gantry 103 and the supporting strip 3. Optionally, the pressure head 4 can be configured as a strip structure and extend in the front-to-back direction to have more overlap areas with the bending groove in the up-down direction, so that a plate with a larger area can be bent, thereby improving the applicability of the bending machine.

[0025] During the bending process, initially, the two support strips 3 are in the first working state, and the surfaces of the two support strips 3 are located on the same horizontal plane.

[0026] First, place the plate horizontally on the two supporting strips 3, and then drive the pressing head 4 to move downward in the vertical direction until the pressing head 4 abuts against the plate to achieve preliminary positioning of the plate; then continue to drive the pressing head 4 to move downward in the vertical direction, and at the same time, under the action of the transmission mechanism 5, drive the two rotating shafts 2 to rotate synchronously in opposite directions, so as to drive the two supporting strips 3 to switch from the first working state to the second working state, so that the plate surfaces of the two supporting strips 3 are arranged oppositely, and a V-shaped bending groove is formed between the two supporting strips 3; as the rotating shaft 2 rotates, the two supporting strips 3 are pushed upward by squeezing. In this way, on the one hand, a thrust is provided to the lower side of the plate. Under the action of the thrust, the lower part of the structure of the plate tends to move closer to the bending point, thereby effectively compensating for the stretching of the plate on the outside of the bending point due to the force during the bending process, reducing the possibility of tearing on the outside of the bending point of the plate, and to a certain extent solving the problem of easy tearing of the plate due to stretching, greatly improving the quality and success rate of plate bending, reducing the waste of raw materials, ensuring the smooth progress of subsequent decoration construction, and improving the overall work efficiency. On the other hand, it can also assist and actively bend the plate, which is conducive to improving the bending effect.

[0027] Furthermore, the transmission mechanism 5 is configured to include a transmission component 501, the transmission component 501 includes a bidirectional rack 5011 and two gears 5012, the bidirectional rack 5011 extends in the vertical direction, is arranged on the pressure head 4, and can slide along the axial direction of the rotating shaft 2, and the bidirectional rack 5011 is simultaneously located between the two rotating shafts 2; the two gears 5012 are respectively fixedly sleeved on the two rotating shafts 2, and are respectively meshed with the two sets of teeth of the bidirectional rack 5011.

[0028] Specifically in this embodiment, Figure 2 As shown, the two groups of teeth of the bidirectional rack 5011 are respectively arranged on the left and right side walls of the bidirectional rack 5011, and both extend in the up-down direction.

[0029] During use, initially, the bidirectional rack 5011 is disposed away from the pressure head 4 , and at this time, the bidirectional rack 5011 and the two gears 5012 are not meshed.

[0030] When the pressure head 4 abuts against the plate, it drives the two-way rack 5011 to move along the axial direction of the rotating shaft 2 and in the direction close to the pressure head 4, so that the two sets of teeth of the two-way rack 5011 can respectively mesh with the two gears 5012; then it continues to drive the pressure head 4 to move downward in the vertical direction, and the pressure head 4 simultaneously drives the two-way rack 5011 to move downward, and the two-way rack 5011 synchronously drives the two rotating shafts 2 to rotate in the opposite direction through the meshing with the two gears 5012, so that the two supporting strips 3 switch from the first working state to the second working state. As the rotating shaft 2 rotates, the two supporting strips 3 rotate while squeezing and pushing the plate inward, so that the plates on both sides outside the bending point gather toward the bending point, thereby effectively compensating for the stretching of the plate outside the bending point due to the force during the bending process.

[0031] Furthermore, in order to improve the transmission stability of the transmission mechanism 5, the number of transmission components 501 is set to be two, and they are symmetrically arranged. In this way, when the pressure head 4 abuts against the plate and continues to move downward in the vertical direction, the two-way racks 5011 in the two transmission components 501 act synchronously and mesh with the corresponding gears 5012 respectively, so that the driving forces from the transmission components 501 received by the two rotating shafts 2 are equal in magnitude and symmetrical in direction, which can not only effectively avoid the problem of uneven power transmission that may occur in a single transmission component 501, resulting in asynchronous rotation of the two rotating shafts 2, but also ensure that the two supporting strips 3 can accurately and synchronously switch from the first working state to the second working state; it can also disperse the stress generated during the working process to a certain extent, reduce the degree of wear of each component in the transmission component 501, and extend the service life of the transmission mechanism 5; at the same time, the two symmetrically arranged transmission components 501 make the structure of the entire transmission system more stable, enhance the reliability of the bending machine during the working process, and ensure that the bending operation of the bending machine on the plate is stable and efficient even under long-term and high-load working conditions.

[0032] In some embodiments, the metal material bending machine for building decoration is configured to also include a first driving member, which is configured to provide a driving force for the sliding of the bidirectional rack 5011. The first driving member is arranged at the top of the pressure head 4 and is arranged close to the end. The output end of the first driving member faces the bidirectional rack 5011 and is arranged on the bidirectional rack 5011; the first driving member can be set to a first hydraulic cylinder 6 or a pneumatic cylinder or an electric cylinder.

[0033] Specifically in this embodiment, the first driving member is set as the first hydraulic cylinder 6 as an example. Figure 2As shown, the first hydraulic cylinder 6 is arranged at the top of the pressure head 4 and close to the end. The axis of the output shaft of the first hydraulic cylinder 6 extends along the front-to-back direction. The output shaft of the first hydraulic cylinder 6 faces the bidirectional rack 5011 and is arranged on the bidirectional rack 5011.

[0034] During use, when the output shaft of the first hydraulic cylinder 6 extends, it synchronously drives the bidirectional rack 5011 to move away from the pressure head 4; when the output shaft of the first hydraulic cylinder 6 retracts, it synchronously drives the bidirectional rack 5011 to move toward the pressure head 4.

[0035] In a further embodiment, when there are two transmission assemblies 501, there are correspondingly two first driving members, which are symmetrically arranged at the two ends of the top of the pressure head 4 so as to respectively drive the bidirectional racks 5011 in the two transmission assemblies 501 to move.

[0036] In other embodiments, the transmission mechanism 5 is configured to include two second driving members, and the two second driving members are configured to be able to synchronously drive the two rotating shafts 2 to rotate in opposite directions; the second driving member is configured to be a driving motor, and the driving motor is arranged on the machine base 1, and the motor shafts of the two driving motors are both facing the rotating shaft 2, and are respectively coaxially arranged on the two rotating shafts 2.

[0037] Specifically in this embodiment, two drive motors are arranged on the top of the working platform 101 and are arranged side by side at intervals in the left and right directions. The motor shafts of the two drive motors are both facing the rotating shaft 2 and are coaxially arranged on the two rotating shafts 2 respectively, so as to be able to synchronously drive the two rotating shafts 2 to rotate in opposite directions.

[0038] In other embodiments, the metal material bending machine used for building decoration is configured to also include a third driving member, which is configured to provide a driving force for the sliding of the pressing head 4. The third driving member is configured to be a second hydraulic cylinder 7, and the second hydraulic cylinder 7 is arranged on the machine base 1, and the axis of the output shaft extends in the vertical direction and is fixedly arranged on the pressing head 4.

[0039] Specifically in this embodiment, Figure 1 As shown, the second hydraulic cylinder 7 is arranged on the gantry 103 , and the output shaft is arranged downward and fixed on the top of the pressure head 4 .

[0040] During use, when the output shaft of the second hydraulic cylinder 7 is extended, the pressure head 4 is synchronously driven to move downward; when the output shaft of the first hydraulic cylinder 6 is retracted, the pressure head 4 is synchronously driven to move upward.

[0041] In a further embodiment, in order to improve the stability of the pressure head 4 when moving, the number of the second hydraulic cylinders 7 can be set to two, such as Figure 1 As shown, the two second hydraulic cylinders 7 are spaced apart and arranged side by side in the front-rear direction.

[0042] In other embodiments, in order to reduce the influence on the bending shape of the plate, the side walls of the two supporting strips 3 are both chamfered.

[0043] Specifically in this embodiment, Figure 5 As shown in FIG. 1 , the cross-sectional shape of the chamfered support strip 3 is an isosceles trapezoid. Figure 7 As shown, when the two support strips 3 are in the second working state, the two second support strips 3 can form a V-shaped bending groove faster and more smoothly, and the edge of the V-shaped bending groove has a smooth transition due to the chamfer design of the support strips 3. Therefore, during the bending process of the plate, the structural characteristics of the V-shaped bending groove can provide a stable and reasonable constraint for the plate, so that the plate can be deformed along a preset path when bending.

[0044] In other embodiments, the plate will generally rebound after being bent, which affects the bending quality. In order to reduce the impact of this situation on the bending quality, the metal material bending machine used for building decoration is set to bend the plate at least twice. Specifically, during the first bending, the metal material bending machine used for building decoration performs a preliminary bending operation on the plate, causing the plate to undergo a certain degree of plastic deformation. Since the elastic deformation of the plate is relatively large during the first bending, a certain degree of rebound will occur after the bending force is removed. However, after the first bending, the internal structure of the plate has undergone certain changes, and its mechanical properties such as elastic modulus will also change accordingly.

[0045] Then the second bending operation is carried out. At this time, based on the change in the mechanical properties of the plate after the first bending, the second bending and multiple bending of the metal material bending machine used for building decoration can further adjust the plastic deformation of the plate, make up for the deviation caused by the springback after the first bending, and make the plate closer to the expected bending shape and angle. Through at least two bending operations, the springback amount of the plate is gradually reduced, and the accuracy and quality of the plate bending are improved.

[0046] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A metal material bending machine for building decoration, characterized in that: The metal material bending machine for building decoration is configured to be able to bend a plate and comprises: Machine base; Two rotating shafts are arranged on the machine base in parallel and at intervals, and both can rotate around their own axes, and the two rotating shafts rotate in opposite directions; Two support strips are respectively arranged in parallel on the two rotating shafts, a bending area is formed between the two support strips, and the two support strips are configured to have a first working state and a second working state. When in the first working state, the board surfaces of the two support strips are located on the same horizontal plane and are configured to be able to place the board. When in the second working state, the board surfaces of the two support strips are arranged opposite to each other, and a V-shaped bending groove is formed between the two support strips; A pressing head is arranged on the machine base and is located above the bending area, and can slide up and down in a vertical direction to be pressed on the plate; The transmission mechanism is configured to drive the two rotating shafts to rotate synchronously in opposite directions when the pressing head presses the plate, so as to drive the two supporting strips to switch from the first working state to the second working state, so that the two supporting strips can synchronously squeeze and push the plate inward to compensate for the stretching outside the bending point of the plate.

2. The metal material bending machine for building decoration according to claim 1 is characterized in that: The transmission mechanism includes a transmission assembly, which includes a bidirectional rack and two gears. The bidirectional rack extends in a vertical direction, is arranged on the pressure head, and can slide along the axial direction of the rotating shaft. The bidirectional rack is simultaneously located between the two rotating shafts; the two gears are respectively fixedly sleeved on the two rotating shafts, and are respectively meshed with two sets of teeth of the bidirectional rack.

3. The metal material bending machine for building decoration according to claim 2 is characterized in that: There are two transmission components, which are symmetrically arranged.

4. The metal material bending machine for building decoration according to claim 2 is characterized in that: The metal material bending machine for building decoration also includes a first driving member, which is configured to provide a driving force for the sliding of the bidirectional rack; the first driving member is arranged at the top of the pressure head and close to the end, and the output end of the first driving member faces the bidirectional rack and is arranged on the bidirectional rack; the first driving member is a first hydraulic cylinder or a pneumatic cylinder or an electric cylinder.

5. The metal material bending machine for building decoration according to claim 1 is characterized in that: The transmission mechanism also includes two second driving members, which are configured to synchronously drive the two rotating shafts to rotate in opposite directions; the second driving members are driving motors, which are arranged on the machine base, and the motor shafts of the two driving motors are both facing the rotating shaft and are coaxially arranged on the two rotating shafts.

6. The metal material bending machine for building decoration according to claim 1 is characterized in that: The metal material bending machine for building decoration also includes a third driving member, which is configured to provide a driving force for the sliding of the pressing head; the third driving member is a second hydraulic cylinder, which is arranged on the machine base, and the axis of the output shaft extends in the vertical direction and is fixedly arranged on the pressing head.

7. The metal material bending machine for building decoration according to claim 1 is characterized in that: The side walls of the two supporting strips are both chamfered.

8. The metal material bending machine for building decoration according to claim 1 is characterized in that: The metal material bending machine used for building decoration bends the plate at least twice when bending the plate.

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