A continuous bending machine for processing a container side plate

Abstract

The present disclosure relates to the technical field of container side plate processing, and an embodiment of the present disclosure provides a continuous bending machine for container side plate processing, which comprises a device frame and a pair of outer frames, the outer frames are fixed on the top and bottom of the device frame, a bottom groove is arranged on the bottom of the device frame, a bending assembly is arranged between the outer frames, a conveying and correcting assembly is arranged in the device frame, the bending assembly comprises an upper pressing die, the upper pressing die is connected to the outer frame on the top through a vertical linear drive, the outer frame on the bottom is connected with a lower pressing die through a vertical linear drive, the lower pressing die is located in the bottom groove, a horizontal groove is arranged on one side of the upper pressing die, and a plurality of fixed columns are vertically and fixedly connected in the horizontal groove. Through the above technical scheme, the technical problem that the bending forming of a single side plate needs to be completed through multiple separate operations in the prior art, including intermittent feeding of the plate, reciprocating stamping and bending and other dispersed steps, which seriously restricts the production efficiency, is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of container side panel processing, and more specifically, to a continuous bending machine for container side panel processing. Background Technology

[0002] As a key protective component forming the sides of the container, the side panels need to be precisely connected to the top, bottom, and front and rear panels. Their structural strength directly determines the container's resistance to compression and impact during transportation and stacking. Currently, side panels are mostly made of high-strength steel plates or aluminum alloy plates. The thickness and quality of the materials must be strictly set according to the container type, size, and load-bearing requirements, thus placing extremely high demands on the precision and efficiency of the processing equipment.

[0003] In the side panel bending process, traditional bending machines have significant technical limitations: they require multiple separate operations to complete the bending of a single side panel, including disparate steps such as intermittent feeding of the sheet metal and reciprocating punching and bending, which severely restricts production efficiency. Due to the large size of the side panels and the numerous bending points, operators need to repeatedly adjust the sheet metal position and set bending parameters, which not only increases labor costs and intensity but also easily leads to bending accuracy deviations due to human error, resulting in misalignment of the side panels with other components.

[0004] Meanwhile, the intermittent processing mode results in significant idle time for the equipment, allowing only a small number of side panels to be processed per unit of time, which is insufficient to meet the demands of large-scale container production. Furthermore, uneven stress on the sheet metal during reciprocating stamping easily leads to stress concentration, causing localized deformation or cracks in the side panels and reducing the yield rate. Therefore, developing container side panel processing equipment capable of continuous bending operations is an urgent need to address the pain points of existing technologies and improve production efficiency and product quality. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a continuous bending machine for processing container side panels, which solves the technical problem that the bending and forming of a single side panel requires multiple separate operations in the prior art, including dispersive steps such as intermittent feeding of the sheet material and reciprocating stamping and bending, which seriously restricts production efficiency.

[0006] According to one aspect, at least one embodiment of this disclosure provides a continuous bending machine for processing container side panels, comprising: The equipment rack and a pair of outer frames, the outer frames being fixed to the top and bottom of the equipment rack; The bottom groove and the bending assembly are provided, wherein the bottom groove is formed at the bottom of the equipment frame and the bending assembly is disposed between the outer frames; A conveying and straightening assembly is disposed in the equipment rack; The bending assembly includes an upper pressing die, which is connected to the outer frame at the top via a vertical linear drive. A lower pressing die is connected to the outer frame at the bottom via a vertical linear drive. The lower pressing die is located in the bottom groove. A horizontal groove is provided on one side of the upper pressing die, and several fixed columns are vertically fixedly connected in the horizontal groove.

[0007] As a further technical solution, a pressing protrusion is movably connected to the fixed column, the lower end face of the pressing protrusion is lower than the bottom surface of the upper pressing mold, and a spring is fitted on each fixed column, the spring being supported between the top of the transverse groove and the upper surface of the pressing protrusion.

[0008] As a further technical solution, the conveying and correction assembly includes an upper pressure layer, which is horizontally fixed in the equipment frame, and side grooves are formed on both the side end face of the upper pressure layer and the inner end face of the bottom groove.

[0009] As a further technical solution, a pair of conveying rollers are horizontally rotatably connected inside the equipment frame. Each of the conveying rollers is equipped with a transmission gear at one end, and one of the conveying rollers is driven to rotate by electricity.

[0010] As a further technical solution, the conveying rollers are all located in the side grooves, the equipment frame is provided with a conveyor belt, the conveyor belt and the conveying rollers are respectively located on both sides of the bottom groove, and several long grooves are opened at both ends of the bottom surface of the equipment frame.

[0011] As a further technical solution, both sides of the equipment frame are connected to side frames via horizontal linear drive, and the bottom of each side frame is rotatably connected to several straightening rollers, with the lower end of each straightening roller located within the long groove.

[0012] As a further technical solution, several support rods are horizontally fixedly connected inside the equipment frame, and the support rods are supported on the top inside the conveyor belt.

[0013] As a further technical solution, the upper surface of the conveyor belt is slightly higher than the inner bottom surface of the equipment frame.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the bending assembly solves the problem of traditional equipment requiring multiple operations through a precise bending design. The upper and lower bending dies work in tandem, combined with a vertical linear drive, to achieve efficient bending. The elastic fixation of the clamping protrusion and spring adapts to side panels of different thicknesses, avoiding rigid damage and ensuring no displacement of the sheet metal during bending, thus improving angular accuracy. This structure eliminates the need for repeated adjustments to the sheet metal position, reduces idle waiting time, is suitable for continuous production, and avoids side panel deformation caused by stress concentration, improving the finished product qualification rate and meeting the needs of large-scale processing of container side panels. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is an isometric sectional view of the present disclosure; Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle; In the diagram: 1. Equipment frame; 2. Outer frame; 3. Bottom trough; 4. Pressing and bending assembly; 4-1. Upper pressing die; 4-2. Lower pressing die; 4-3. Horizontal trough; 4-4. Fixed column; 4-5. Pressing protrusion; 4-6. Spring; 5. Conveying and straightening assembly; 5-1. Upper pressing layer; 5-2. Side trough; 5-3. Conveying roller; 5-4. Transmission gear; 5-5. Conveying belt; 5-6. Long trough; 5-7. Side frame; 5-8. Straightening roller; 6. Support rod. Detailed Implementation

[0017] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0020] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-4 As shown, a continuous bending machine for processing container side panels is illustrated in one embodiment of this disclosure, comprising: The equipment rack 1 and a pair of outer frames 2 are fixed to the top and bottom of the equipment rack 1. The bottom groove 3 and the bending assembly 4 are provided. The bottom groove 3 is formed at the bottom of the equipment frame 1, and the bending assembly 4 is arranged between the outer frames 2. A conveying and straightening assembly 5 is disposed in the equipment frame 1; The bending assembly 4 includes an upper pressing mold 4-1, which is vertically and linearly connected to the outer frame 2 at the top. A lower pressing mold 4-2 is vertically and linearly connected to the outer frame 2 at the bottom. The lower pressing mold 4-2 is located in the bottom groove 3. A transverse groove 4-3 is provided on one side of the upper pressing mold 4-1. Several fixed posts 4-4 are vertically and fixedly connected in the transverse groove 4-3. A pressing protrusion 4-5 is movably fitted on the fixed post 4-4. The lower end face of the pressing protrusion 4-5 is lower than the bottom face of the upper pressing mold 4-1. A spring 4-6 is fitted on each fixed post 4-4. The spring 4-6 is supported between the top of the transverse groove 4-3 and the upper surface of the pressing protrusion 4-5.

[0024] In some examples, a bending assembly 4 is designed to achieve precise bending of the container side panels. This assembly includes a vertical linear drive (which can be a hydraulic cylinder) fixed on the lower surface of the top outer frame 2. Its output end is fixedly connected to the center of the top surface of the upper pressing mold 4-1, which can drive the upper pressing mold 4-1 to rise and fall vertically. A vertical linear drive is also fixed at the corresponding position on the upper surface of the bottom outer frame 2. Its output end is fixed to the bottom surface of the lower pressing mold 4-2, and the lower pressing mold 4-2 is embedded in the bottom groove 3 at the bottom of the equipment frame 1 to ensure that it does not deviate from the bending center during the lifting process. The upper pressing mold 4-1 has a transversely extending groove 4-3 on the side near the conveying direction. Several vertically fixed posts 4-4 are evenly distributed in the groove. A pressing protrusion 4-5 is movably fitted on the outside of the fixed posts 4-4. The fixed posts 4-4 form a vertical guide for the pressing protrusion 4-5 to prevent it from shifting horizontally. The lower end of the pressing protrusion 4-5 is lower than the bottom surface of the upper pressing mold 4-1, so it can contact the plate material first. The springs 4-6 fitted on the outside of the fixed posts 4-4 are supported at both ends between the top of the transverse groove 4-3 and the upper surface of the pressing protrusion 4-5, providing downward elastic pressure for the pressing protrusion 4-5.

[0025] During operation, after the sheet metal is conveyed to the bottom groove 3, the top vertical linear drive component lowers the upper pressure die 4-1. First, the pressing protrusion 4-5 contacts the sheet metal surface. As the upper pressure die 4-1 continues to descend, the spring 4-6 is compressed, generating continuous elastic pressure to firmly fix the sheet metal to the surface of the bottom groove 3. Subsequently, the bottom vertical linear drive component lifts the lower pressure die 4-2 upwards, cooperating with the upper pressure die 4-1 to extrude the sheet metal, bending it along the die contour. After forming, the dies are reset sequentially, and the spring 4-6 pushes the pressing protrusion 4-5 back to its original position, awaiting the next bending. The elastic pre-compression design of the spring 4-6 can adapt to container side panels of different thicknesses, avoiding damage to the sheet metal surface from rigid clamping, while ensuring no displacement of the sheet metal during extrusion, guaranteeing accurate bending angles. The cooperation between the fixed column 4-4 and the transverse groove 4-3 stabilizes the lifting and lowering of the pressing protrusion 4-5, and the synchronous movement of the upper and lower dies improves bending efficiency, meeting the needs of continuous processing.

[0026] like Figures 1-4As shown in the figure, the conveying and straightening assembly 5 in this embodiment includes an upper pressure layer 5-1, which is horizontally fixed in the equipment frame 1. The side end face of the upper pressure layer 5-1 and the inner end face of the bottom groove 3 are both provided with side grooves 5-2. A pair of conveying rollers 5-3 are horizontally rotatably connected in the equipment frame 1. One end of each conveying roller 5-3 is provided with a transmission gear 5-4. One of the conveying rollers 5-3 is driven to rotate by electricity. The conveying rollers 5-3 are all located in the side grooves 5-2. A conveyor belt 5-5 is provided inside the equipment frame 1. The conveyor belt 5-5 and the conveying rollers 5-3 are respectively located on both sides of the bottom groove 3. Several long grooves 5-6 are provided at both ends of the bottom surface of the equipment frame 1. Side frames 5-7 are horizontally linearly driven to both sides of the equipment frame 1. Several straightening rollers 5-8 are rotatably connected to the bottom of each side frame 5-7. The lower end of the straightening rollers 5-8 is located in the long grooves 5-6.

[0027] In some examples, in order to achieve continuous and centered conveying of container side panels and provide stable feeding for the bending assembly 4, a conveying and straightening assembly 5 is designed. This assembly includes an upper pressing layer 5-1 that is horizontally fixed inside the equipment frame 1 and located above the bottom groove 3. The side end face of the upper pressing layer 5-1 near the bottom groove 3 and the inner end face of the bottom groove 3 are both provided with horizontally penetrating side grooves 5-2. A pair of conveying rollers 5-3 are horizontally rotatably connected to the inner wall of the equipment frame 1, and the roller body is embedded in the side groove 5-2. One end of the conveying roller 5-3 is coaxially fixed with a transmission gear 5-4 that meshes with each other. The other end of one of the conveying rollers 5-3 is connected to the output end of an electric drive (which can be a geared motor) to ensure that the two conveying rollers 5-3 rotate synchronously in opposite directions under the action of gear transmission, forming a clamping and conveying force on the plate. The conveyor belt 5-5 is horizontally installed inside the equipment frame 1, and is located on both sides of the bottom trough 3 along with the conveyor roller 5-3, forming a continuous conveying path. Several long troughs 5-6 extending along the conveying direction are opened at both ends of the bottom surface of the equipment frame 1. Horizontal linear drive components (pneumatic cylinders can be used) are fixed on both outer walls of the equipment frame 1. Their output ends pass through the side wall of the equipment frame 1 and are vertically fixed to the outer surface of the side frame 5-7. Several straightening rollers 5-8 rotatably connected to the bottom of the side frame 5-7 are embedded in the long troughs 5-6, and the roller bodies of the straightening rollers 5-8 can slide laterally along the long troughs 5-6 with the side frame 5-7.

[0028] During operation, the sheet material to be processed is placed between synchronously rotating conveyor rollers 5-3, which clamp the sheet material and move it towards the bending assembly 4. Simultaneously, the horizontal linear drive components on both sides extend and retract according to the width of the sheet material, driving the side frame 5-7 to move laterally, so that the straightening rollers 5-8 on both sides fit against the sides of the sheet material. The straightening rollers 5-8 rotate synchronously with the sheet material during conveying, forming a guiding constraint within the long groove 5-6 to prevent the sheet material from shifting. The upper pressing layer 5-1 and the side groove 5-2 of the bottom groove 3 limit the vertical movement of the sheet material, ensuring a stable conveying posture. The meshing transmission of the transmission gear 5-4 ensures that the conveyor rollers 5-3 rotate at the same speed, preventing the sheet material from tilting due to uneven force. The rolling contact of the straightening rollers 5-8 reduces the resistance of the sheet material during conveying, and the guiding effect of the long groove 5-6 ensures accurate straightening direction. The adjustability of the horizontal linear drive components adapts to container side panels of different widths. The cooperation between the conveyor belt 5-5 and the conveyor rollers 5-3 achieves uninterrupted continuous conveying, and together with the bending assembly 4, it achieves integrated processing of conveying, straightening, and bending, significantly improving production efficiency.

[0029] For example, such as Figure 3 As shown, several support rods 6 are horizontally fixedly connected inside the equipment frame 1, and the support rods 6 are supported on the top of the conveyor belt 5-5.

[0030] In some examples, several horizontally fixed support rods 6 within the equipment frame 1 support the top of the conveyor belt 5-5, effectively preventing the conveyor belt 5-5 from sinking due to the weight of the container side panels. The support rods 6 are evenly distributed along the length of the conveyor belt 5-5, forming a stable support structure to ensure that the conveyor belt 5-5 remains horizontal at all times. This design prevents the sheet material from tilting during transport due to indentation in the conveyor belt 5-5, ensuring a stable transport posture. Working in conjunction with the conveyor rollers 5-3 and 5-8, it maintains the sheet material's centering, providing a stable feeding base for the subsequent precise processing of the bending assembly 4. It also extends the service life of the conveyor belt 5-5 and reduces equipment maintenance frequency.

[0031] For example, such as Figure 3 As shown, the upper surface of the conveyor belt 5-5 is slightly higher than the inner bottom surface of the equipment frame 1.

[0032] In some examples, the upper surface of conveyor belt 5-5 is slightly higher than the inner bottom surface of equipment frame 1, which reduces frictional contact between the sheet material and the inner bottom surface of equipment frame 1. When the sheet material is placed on conveyor belt 5-5, the higher position prevents the edges of the sheet material from rubbing against the inner bottom surface of equipment frame 1, ensuring smooth conveying of the sheet material. At the same time, this height difference is adapted to the height of the subsequent conveyor roller 5-3 and the bottom trough 3, so that when the sheet material transitions from conveyor belt 5-5 to conveyor roller 5-3 and then enters the bending area, it can maintain a smooth connection without additional height adjustment, avoiding sheet material displacement or jamming due to height difference, and ensuring the continuity and stability of the process.

[0033] In actual use: The container side panel raw material is conveyed to the equipment frame 1 by the conveyor rollers 5-3. The horizontal linear drive on both sides drives the side frame 5-7 to move, so that the straightening rollers 5-8 fit against the two sides of the side panel. The side panel is guided to be conveyed in the center in the long groove 5-6. The support rod 6 prevents the sheet material formed by the conveyor belt 5-5 from sinking and ensures smooth conveying. The side panel continues to move forward after being clamped by the conveyor rollers 5-3. The transmission gear 5-4 drives the conveyor rollers 5-3 to rotate synchronously. The upper pressing layer 5-1 and the side groove 5-2 limit the up and down displacement of the side panel. After reaching the bending area, the top vertical linear drive drives the upper pressing mold 4-1 to descend. The pressing protrusion 4-5 contacts the side panel first. The spring 4-6 is compressed to generate elastic pressure to fix the side panel. The bottom vertical linear drive pushes the lower pressing mold 4-2 to rise, which cooperates with the upper pressing mold 4-1 to complete the bending. After bending, the mold resets, the spring 4-6 pushes the pressing protrusion 4-5 to rebound, and the side panel continues to be conveyed to the next process. The whole process realizes continuous conveying, straightening and bending integrated operation.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A continuous bending machine for processing container side panels, characterized in that, include: Equipment rack (1) and a pair of outer frames (2), the outer frames (2) being fixed to the top and bottom of the equipment rack (1); The bottom groove (3) and the bending assembly (4) are provided. The bottom groove (3) is formed at the bottom of the equipment frame (1), and the bending assembly (4) is provided between the outer frames (2). A conveying and straightening assembly (5) is disposed in the equipment frame (1); The bending assembly (4) includes an upper pressing mold (4-1), which is connected to the outer frame (2) at the top via a vertical linear drive. A lower pressing mold (4-2) is connected to the outer frame (2) at the bottom via a vertical linear drive. The lower pressing mold (4-2) is located in the bottom groove (3). A transverse groove (4-3) is provided on one side of the upper pressing mold (4-1), and several fixed columns (4-4) are vertically fixedly connected in the transverse groove (4-3).

2. The continuous bending machine for processing container side panels according to claim 1, characterized in that, A pressing protrusion (4-5) is movably connected to the fixed column (4-4). The lower end face of the pressing protrusion (4-5) is lower than the bottom face of the upper pressing mold (4-1). A spring (4-6) is fitted on each fixed column (4-4). The spring (4-6) is supported between the top of the transverse groove (4-3) and the upper surface of the pressing protrusion (4-5).

3. The continuous bending machine for processing container side panels according to claim 1, characterized in that, The conveying and correction assembly (5) includes an upper pressure layer (5-1), which is horizontally fixed in the equipment frame (1). The side end face of the upper pressure layer (5-1) and the inner end face of the bottom groove (3) are both provided with side grooves (5-2).

4. A continuous bending machine for processing container side panels according to claim 3, characterized in that, A pair of conveying rollers (5-3) are horizontally rotatably connected inside the equipment frame (1). Each of the conveying rollers (5-3) is provided with a transmission gear (5-4) at one end. One of the conveying rollers (5-3) is driven to rotate by electricity.

5. A continuous bending machine for processing container side panels according to claim 4, characterized in that, The conveying rollers (5-3) are all located in the side grooves (5-2). The equipment frame (1) is equipped with a conveyor belt (5-5). The conveyor belt (5-5) and the conveying rollers (5-3) are located on both sides of the bottom groove (3). Several long grooves (5-6) are opened at both ends of the bottom surface of the equipment frame (1).

6. A continuous bending machine for processing container side panels according to claim 5, characterized in that, Both sides of the equipment frame (1) are connected to side frames (5-7) via horizontal linear drive. Several straightening rollers (5-8) are rotatably connected to the bottom of each side frame (5-7). The lower end of each straightening roller (5-8) is located in the long groove (5-6).

7. A continuous bending machine for processing container side panels according to claim 5, characterized in that, Several support rods (6) are horizontally fixedly connected inside the equipment frame (1), and the support rods (6) are supported on the top of the conveyor belt (5-5).

8. A continuous bending machine for processing container side panels according to claim 5, characterized in that, The upper surface of the conveyor belt (5-5) is slightly higher than the inner bottom surface of the equipment frame (1).

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