Rear corner post straightening device of refrigerated container

Abstract

The utility model provides a rear corner post straightening device of a refrigerated container. The rear corner post straightening device comprises a rack, a conveying assembly, a guiding assembly and a straightening assembly, the conveying assembly is arranged on the machine frame and suitable for conveying the rear corner columns in the direction of the guiding assembly. The guiding assembly is arranged on the rack, a conveying channel is formed in the guiding assembly in the conveying direction of the rear corner column, the inner caliber of the conveying channel is gradually reduced in the conveying direction of the rear corner column, and the guiding assembly is suitable for guiding the rear corner column into the conveying channel so that the rear corner column can be conveyed in the direction of the straightening assembly; the straightening assembly comprises an upper pressing roller set and a lower pressing roller set arranged up and down with the upper pressing roller set, at least one of the upper pressing roller set and the lower pressing roller set can be adjusted up and down in the vertical direction, and a space allowing the rear corner column to penetrate through is formed between the upper pressing roller set and the lower pressing roller set. The rear corner post straightening device has the advantage of being suitable for straightening rear corner posts with different thicknesses.

Description

Technical Field

[0001] This utility model relates generally to the field of straightening machine technology, and more specifically to a rear corner post straightening device for refrigerated containers. Background Technology

[0002] The rear corner post assembly in a refrigerated container includes outer corner posts and inner corner posts. After the outer corner posts and inner corner posts are welded together, in order to eliminate stress and ensure the straightness of the rear corner post assembly, a rear corner post assembly straightening mechanism that can meet the straightening requirements of different thicknesses is designed.

[0003] In the refrigerated container industry, rear corner pillar components are primarily straightened using cylinders for top pressure and visual inspection. However, due to factors such as workpiece conveying, asynchronous hydraulic cylinders, and dimensional errors in the sheet metal, poor straightness has consistently been a problem, leading to long-standing customer complaints and dissatisfaction – a persistent quality issue.

[0004] Therefore, there is a need to provide a rear corner post straightening device for refrigerated containers to at least partially solve the above problems. Utility Model Content

[0005] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, this utility model provides a rear corner post straightening device for a refrigerated container. The rear corner post includes an outer corner post and an inner corner post joined together. The rear corner post straightening device includes a frame and a conveying assembly, a guiding assembly, and a straightening assembly arranged sequentially. The conveying assembly is disposed on the frame and is adapted to convey the rear corner post toward the guiding assembly. The guiding assembly is disposed on the frame and has a conveying channel inside along the conveying direction of the rear corner post. The inner diameter of the conveying channel gradually decreases along the conveying direction of the rear corner post. The guiding assembly is adapted to guide the rear corner post into the conveying channel so that the rear corner post is conveyed toward the straightening assembly. The straightening assembly includes an upper pressure roller group and a lower pressure roller group disposed vertically above and below the upper pressure roller group. At least one of the upper pressure roller group and the lower pressure roller group is vertically adjustable, and there is a space between the upper pressure roller group and the lower pressure roller group for the rear corner post to pass through.

[0007] Optionally, the upper pressure roller group includes a protrusion, and the lower pressure roller group includes a concave portion. The bottom end face of the protrusion is in close contact with the outer side surface of the inner corner post, and the top end face of the concave portion is in close contact with the outer side surface of the outer corner post.

[0008] Optionally, the distance between the upper pressure roller group and the lower pressure roller group is greater than or equal to 52 mm and less than or equal to 58 mm.

[0009] Optionally, the straightening assembly further includes: a base frame, which is connected to the machine frame and the top surface of the base frame is lower than the top surface of the machine frame; and an outer cover, which is disposed on the base frame and is adapted to cover the upper pressure roller group and the lower pressure roller group.

[0010] Optionally, the lower pressure roller group includes a plurality of lower pressure rollers, which are spaced apart along the extension direction of the base frame, and each lower pressure roller has the concave portion.

[0011] Optionally, each of the lower pressure rollers is provided with a driven gear on the same side; the rear angle column straightening device further includes: a motor; a reducer, the input end of the reducer is connected to the motor, the output end of the reducer has a driving gear, and the driving gear is connected to each of the driven gears through a chain.

[0012] Optionally, the rear corner post straightening device further includes a plurality of transition rollers, which are spaced apart along the extension direction of the base frame, and each transition roller is tangentially disposed between two adjacent pressure rollers.

[0013] Optionally, the outer cover includes: a peripheral sidewall disposed on the base frame; and a top wall disposed at the top of the peripheral sidewall, the top wall having a plurality of through holes spaced apart along the extending direction of the top wall; the upper pressure roller group includes: a plurality of upper pressure rollers, all disposed on the top wall and spaced apart along the extending direction of the top wall, and the spacing between adjacent upper pressure rollers gradually decreases along the conveying direction of the rear corner column;

[0014] Each of the upper pressure rollers has the protrusion.

[0015] Optionally, the rear corner post straightening device further includes: a plurality of lead screws adapted to pass through the corresponding through holes and movably disposed on the top wall; a plurality of nuts disposed on the top surface of the corresponding upper pressure roller, the lead screws and the corresponding nuts being detachably connected; and a plurality of handles disposed on the top of the corresponding lead screws, rotating the handles being adapted to drive the corresponding upper pressure rollers to move up and down relative to the top wall via the lead screws.

[0016] Optionally, the guiding assembly includes a first guide plate and a second guide plate disposed opposite to each other at both ends of the frame along the width direction of the frame, and the conveying channel is formed between the first guide plate and the second guide plate.

[0017] Compared with the prior art, the rear corner post straightening device of this utility model for refrigerated containers has the following advantages:

[0018] Beneficial effects:

[0019] According to the rear corner post straightening device of this utility model, after the outer corner post and the inner corner post are spliced ​​and welded together, the rear corner post is transported to the conveying assembly after it cools to room temperature. Driven by the conveying assembly, it will be transported towards the guide assembly. The guide assembly can guide the rear corner post into its internal conveying channel. Then, it is transported to the straightening assembly for straightening. In this utility model, the upper pressure roller group and the lower pressure roller group are arranged vertically, and at least one of the upper pressure roller group and the lower pressure roller group can be adjusted vertically. This can realize the straightening of rear corner posts of different thicknesses, so as to eliminate the deformation of the rear corner post after welding, reduce subsequent maintenance and rework, reduce labor intensity, and achieve the effect of cost reduction and efficiency improvement. Attached Figure Description

[0020] The following drawings, which illustrate embodiments of the present invention, are incorporated herein as part of the present invention for understanding the invention. The drawings show embodiments of the present invention and their descriptions, serving to explain the principles of the present invention. In the drawings,

[0021] Figure 1 This is a top view schematic diagram of the overall structure of the rear corner post straightening device of a refrigerated container according to a preferred embodiment of the present invention.

[0022] Figure 2 This is a front view structural schematic diagram of a rear corner post straightening device for a refrigerated container according to a preferred embodiment of the present invention;

[0023] Figure 3 This is a left-side structural schematic diagram of a rear corner post straightening device for a refrigerated container according to a preferred embodiment of the present invention; and

[0024] Figure 4 This is an external side view of a preferred embodiment of the rear corner post straightening device for a refrigerated container according to the present invention.

[0025] Figure label:

[0026] 200: Rear corner post; 201: Outer corner post; 202: Inner corner post; 10: Frame; 20: Conveying assembly; 21: Conveying roller; 30: Guide assembly; 30a: Conveying channel; 31: First guide plate; 32: Second guide plate; 40: Straightening assembly; 41: Upper pressure roller group; 41a: Protrusion; 41b: Bottom end face of protrusion 41a; 41c: Upper pressure roller; 42: Lower pressure roller group; 42a: Inner recess; 42b: Inner... Top surface of recess 42a; 42c: lower pressure roller; 43: base frame; 44: outer cover; 44a: peripheral side wall; 44b: top wall; L: distance between upper pressure roller group 41 and lower pressure roller group 42; DL: extension direction of base frame 43; DH: vertical direction; DL1: conveying direction of rear corner column 200; 50: driven gear; 60: reducer; 70: transition roller; 71: lead screw; 72: nut; 73: handle; 74: motor. Detailed Implementation

[0027] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with embodiments of the present invention.

[0028] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art.

[0029] This utility model provides a rear corner post straightening device for a refrigerated container. The rear corner post 200 includes an outer corner post 201 and an inner corner post 202 that are spliced ​​together. The rear corner post straightening device includes a frame 10 and a conveying assembly 20, a guiding assembly 30, and a straightening assembly 40 arranged in sequence.

[0030] like Figures 1 to 4 As shown, in one embodiment of the present invention, the conveying component 20 is disposed on the frame 10, and the conveying component 20 is adapted to convey the rear corner post 200 toward the guide component 30.

[0031] The guide assembly 30 is disposed on the frame 10. The interior of the guide assembly 30 has a conveying channel 30a along the conveying direction DL1 of the rear corner post 200, and the internal diameter of the conveying channel 30a gradually decreases along the conveying direction DL1 of the rear corner post 200. The guide assembly 30 is adapted to guide the rear corner post 200 into the conveying channel 30a so that the rear corner post 200 is conveyed toward the straightening assembly 40.

[0032] The straightening assembly 40 includes an upper pressure roller group 41 and a lower pressure roller group 42 disposed vertically above the upper pressure roller group 41. At least one of the upper pressure roller group 41 and the lower pressure roller group 42 is adjustable vertically in the vertical direction DH. There is a space between the upper pressure roller group 41 and the lower pressure roller group 42 for the rear corner post 200 to pass through. After the outer corner post 201 and inner corner post 202 of the rear corner post 200 are spliced ​​and welded together, and the rear corner post 200 is cooled to room temperature, it is transported to the conveying assembly 20. Driven by the conveying assembly 20, it will be transported towards the guide assembly 30. The guide assembly 30 can guide the rear corner post 200 into its internal conveying channel 30a. Then, it is transported to the straightening assembly 40 for straightening. In this utility model, the upper pressure roller group 41 and the lower pressure roller group 42 are arranged vertically, and at least one of the upper pressure roller group 41 and the lower pressure roller group 42 can be adjusted vertically along the vertical direction DH. This can straighten the rear corner posts 200 of different thicknesses, so as to eliminate the deformation of the rear corner post 200 after welding, reduce subsequent maintenance and rework, reduce labor intensity, and achieve the effect of cost reduction and efficiency improvement.

[0033] It should be noted that, in order to improve conveying efficiency, the rear corner post straightening device also includes a drive assembly, which is adapted to drive the conveying assembly 20 to rotate.

[0034] Preferably, the drive component can be a drive motor.

[0035] In one specific embodiment, the conveying assembly 20 includes a plurality of conveying rollers 21, and a gear is installed on the same side of each conveying roller 21. The output end of the drive motor meshes with the gear, and the gears can rotate synchronously through a chain. In this way, the conveying efficiency of the rear corner post 200 toward the straightening assembly 40 can be effectively improved.

[0036] like Figure 3 As shown, in some preferred embodiments of this utility model, the upper pressure roller group 41 includes a protrusion 41a, and the lower pressure roller group 42 includes a concave portion 42a. The bottom end face 41b of the protrusion 41a is tightly fitted with the outer surface of the inner corner post 202, and the top end face 42b of the concave portion 42a is tightly fitted with the outer surface of the outer corner post 201. In this way, the purpose of simultaneously straightening the outer surface of the inner corner post 202 and the outer surface of the outer corner post 201 can be achieved.

[0037] like Figure 3 As shown, in some preferred embodiments of this utility model, the distance L between the upper pressure roller group 41 and the lower pressure roller group 42 is greater than or equal to 52 mm and less than or equal to 58 mm. This allows for the straightening of rear corner posts 200 of different thicknesses, effectively improving the straightening applicability of the rear corner post straightening device of this utility model.

[0038] like Figure 2 and Figure 4 As shown, in some preferred embodiments of this utility model, the straightening assembly 40 further includes a base frame 43 and an outer cover 44. The base frame 43 is mated to the frame 10, and the top surface of the base frame 43 is lower than the top surface of the frame 10. This ensures that the rear corner post 200 is smoothly transported into the straightening assembly 40 for straightening, avoiding jamming when the rear corner post 200 is transported towards the straightening assembly 40. The outer cover 44 is disposed on the base frame 43 and is adapted to cover the upper pressure roller group 41 and the lower pressure roller group 42. The outer cover 44 can be fastened to the top surface of the base frame 43 by screws or rivets.

[0039] like Figure 2 and Figure 3 As shown, in some preferred embodiments of this utility model, the lower pressure roller group 42 includes a plurality of lower pressure rollers 42c, which are spaced apart along the extension direction DL of the base frame 43, and each lower pressure roller 42c has an inner recess 42a. Specifically, the lower pressure rollers 42c are adapted to be matched with the upper pressure rollers 41c as described below, so as to achieve the purpose of straightening the outer surface of the rear corner post 200.

[0040] like Figure 1 and Figure 2 As shown, in some preferred embodiments of this utility model, each lower pressure roller 42c is provided with a driven gear 50 on the same side.

[0041] The rear corner post straightening device also includes a motor 74 and a reducer 60. The input end of the reducer 60 is connected to the motor 74, and the output end of the reducer 60 has a drive gear (not shown in the figure). The drive gear is connected to each driven gear 50 via a chain. When the motor 74 rotates, it drives the reducer to rotate. The reducer rotates, which in turn drives the drive gear to rotate. The rotation of the drive gear drives each driven gear 50 to rotate, thereby driving each lower pressure roller 42c to rotate. The rotation of each lower pressure roller 42c is suitable for conveying the rear corner post 200 along the extension direction DL of the base frame 43.

[0042] It should be noted that by controlling the speed of the reducer 60 at 500mm / min-1000mm / min, the current straightening production needs can be met.

[0043] The rear corner post straightening device of this utility model extends the height by 60mm. The distance between the upper pressure roller group 41 and the lower pressure roller group 42 can be adjusted according to the height of the rear corner post of the container to meet the straightening of the rear corner post of different container types.

[0044] like Figure 2As shown, in some preferred embodiments of this utility model, the rear corner post straightening device further includes a plurality of transition rollers 70. The transition rollers 70 are spaced apart along the extension direction DL of the base frame 43, and each transition roller 70 is tangentially disposed between two adjacent lower pressure rollers 42c. The outer diameter of the transition roller 70 is smaller than the outer diameter of the lower pressure roller 42c. By tangentially distributing each transition roller 70 between two adjacent lower pressure rollers 42c, the wobbling of the two adjacent lower pressure rollers 42c during rotation can be effectively avoided, ensuring the stability of the process of straightening the outer surface of the rear corner post 200.

[0045] like Figure 1 , Figure 2 and Figure 4 As shown, in some preferred embodiments of the present invention, the outer cover 44 includes a peripheral sidewall 44a and a top wall 44b, with the peripheral sidewall 44a disposed on the base frame 43.

[0046] The top wall 44b is located at the top of the peripheral side wall 44a. The top wall 44b has multiple through holes (not shown in the figure), which are spaced apart along the extension direction of the top wall 44b.

[0047] The upper pressure roller group 41 includes multiple upper pressure rollers 41c, all of which are disposed on the top wall 44b and spaced apart along the extension direction of the top wall 44b. The spacing between adjacent upper pressure rollers 41c gradually decreases along the conveying direction DL1 of the rear corner post 200. When the rear corner post 200 is first transported to the straightening assembly 40, the stress on the rear corner post 200 is relatively large. As the rear corner post 200 is continuously straightened, the stress on the rear corner post 200 gradually decreases along the conveying direction DL1. By making the spacing between adjacent upper pressure rollers 41c gradually decrease along the conveying direction DL1 of the rear corner post 200, the requirement of first coarsely straightening the rear corner post 200 and then finely straightening it is met, thereby achieving the purpose of gradually releasing the stress on the rear corner post 200.

[0048] Each upper pressure roller 41c has a protrusion 41a, which is adapted to straighten the outer surface of the inner corner post 202.

[0049] like Figure 2 As shown, in some preferred embodiments of this utility model, the rear corner post straightening device further includes multiple lead screws 71, multiple nuts 72, and multiple handles 73.

[0050] The lead screw 71 is adapted to pass through the corresponding through hole and is movably mounted on the top wall 44b.

[0051] Nut 72 is located on the top surface of the corresponding upper pressure roller 41c, and lead screw 71 is detachably connected to the corresponding nut 72.

[0052] A handle 73 is located at the top of the corresponding lead screw 71. Rotating the handle 73 allows the lead screw 71 to drive the corresponding upper pressure roller 41c to move up and down relative to the top wall 44b. The lead screw 71 passes through a through hole in the top wall 44b. The upper end of the lead screw 71 is equipped with a handle 73, and the lower end of the lead screw 71 is connected to a nut 72. Rotating the handle 73 causes the lead screw 71 to rotate. The rotation of the lead screw 71 causes the upper pressure roller 41c to move up and down relative to the top wall 44b of the outer cover 44, thereby straightening the rear corner posts 200 of different thicknesses.

[0053] like Figure 1 As shown, in some preferred embodiments of this utility model, the guide assembly 30 includes a first guide plate 31 and a second guide plate 32 disposed opposite to each other at both ends of the frame 10 along the width direction of the frame 10, forming a conveying channel 30a between the first guide plate 31 and the second guide plate 32. The guide assembly 30 effectively prevents the rear corner post 200 from shifting or falling during conveying towards the straightening assembly 40. Furthermore, the first guide plate 31 and the second guide plate 32 are disposed opposite to each other, forming the aforementioned conveying channel 30a between them. The diameter of the conveying channel 30a gradually decreases along the conveying direction of the guide assembly 200, which is suitable for smoothly guiding the rear corner post 200 into the conveying channel 30a for conveying towards the straightening assembly 40.

[0054] It should be noted that the first guide plate 31 and the second guide plate 32 are both vertically mounted on the frame 10, and the first guide plate 31 and the second guide plate 32 can be fastened to the frame 10 by screws or rivets.

[0055] In summary, according to the rear corner post straightening device of this utility model, after the outer corner post 201 and inner corner post 202 of the rear corner post 200 are spliced ​​and welded together, after the rear corner post 200 cools to room temperature, the rear corner post 200 is transported to the conveying assembly 20. Driven by the conveying assembly 20, it will be transported towards the guide assembly 30. The guide assembly 30 can guide the rear corner post 200 into its internal conveying channel 30a. Then, it is transported to the straightening assembly 40 for straightening. In this utility model, the upper pressure roller group 41 and the lower pressure roller group 42 are arranged vertically, and at least one of the upper pressure roller group 41 and the lower pressure roller group 42 can be adjusted vertically along the vertical direction DH. This can realize the straightening of rear corner posts 200 of different thicknesses, so as to eliminate the deformation of the rear corner post 200 after welding, reduce subsequent maintenance and rework, reduce labor intensity, and achieve the effect of cost reduction and efficiency improvement.

[0056] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Terms such as “set” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0057] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this utility model to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A device for straightening the rear corner posts of a refrigerated container, wherein the rear corner posts include an outer corner post and an inner corner post joined together; characterized in that, The rear corner post straightening device includes a frame and a conveying assembly, a guiding assembly, and a straightening assembly arranged sequentially. The conveying assembly is disposed on the frame, and the conveying assembly is adapted to convey the rear corner post toward the guide assembly; The guide assembly is disposed on the frame, and its interior has a conveying channel along the conveying direction of the rear corner post. The internal diameter of the conveying channel gradually decreases along the conveying direction of the rear corner post. The guide assembly is adapted to guide the rear corner post into the conveying channel so that the rear corner post is conveyed toward the straightening assembly. The straightening assembly includes an upper pressure roller group and a lower pressure roller group arranged vertically above and below the upper pressure roller group. At least one of the upper pressure roller group and the lower pressure roller group is adjustable vertically. There is a space between the upper pressure roller group and the lower pressure roller group for the rear corner post to pass through.

2. The rear corner post straightening device for a refrigerated container according to claim 1, characterized in that, The upper pressure roller assembly includes a protrusion, and the lower pressure roller assembly includes a concave portion. The bottom end face of the protrusion is in close contact with the outer side surface of the inner corner post, and the top end face of the concave portion is in close contact with the outer side surface of the outer corner post.

3. The rear corner post straightening device for a refrigerated container according to claim 1, characterized in that, The distance between the upper pressure roller group and the lower pressure roller group is greater than or equal to 52 mm and less than or equal to 58 mm.

4. The rear corner post straightening device for a refrigerated container according to claim 2, characterized in that, The alignment component also includes: A base frame, which is connected to the frame, wherein the top surface of the base frame is lower than the top surface of the frame; and An outer cover is disposed on the base frame and is adapted to cover the upper pressure roller assembly and the lower pressure roller assembly.

5. The rear corner post straightening device for a refrigerated container according to claim 4, characterized in that, The lower pressure roller group includes multiple lower pressure rollers, which are spaced apart along the extension direction of the base frame, and each lower pressure roller has the inner concave portion.

6. The rear corner post straightening device for a refrigerated container according to claim 5, characterized in that, Each of the lower pressure rollers is provided with a driven gear on the same side; The rear corner post straightening device also includes: Electric motor; A speed reducer, the input end of which is connected to the motor, and the output end of which has a drive gear, the drive gear being connected to each of the driven gears via a chain.

7. The rear corner post straightening device for a refrigerated container according to claim 5, characterized in that, The rear corner post straightening device also includes multiple transition rollers, which are spaced apart along the extension direction of the base frame, and each transition roller is externally tangentially disposed between two adjacent pressure rollers.

8. The rear corner post straightening device for a refrigerated container according to claim 4, characterized in that, The outer cover includes: Peripheral sidewalls, the peripheral sidewalls being disposed on the base frame; and A top wall is disposed at the top of the peripheral side wall, and the top wall has a plurality of through holes, which are spaced apart along the extending direction of the top wall; The upper pressure roller assembly includes: Multiple upper pressure rollers are provided on the top wall and spaced apart along the extension direction of the top wall, and the spacing between adjacent upper pressure rollers gradually decreases along the conveying direction of the rear corner column; Each of the upper pressure rollers has the protrusion.

9. The rear corner post straightening device for a refrigerated container according to claim 8, characterized in that, The rear corner post straightening device also includes: Multiple lead screws, each lead screw being adapted to pass through a corresponding through hole and movably disposed on the top wall; Multiple nuts, each nut being disposed on the top surface of a corresponding upper pressure roller, and the lead screw being detachably connected to the corresponding nut; and Multiple handles are provided, each handle being located at the top of a corresponding lead screw. Rotating the handle is adapted to drive the corresponding upper pressure roller to move up and down relative to the top wall via the lead screw.

10. The rear corner post straightening device for a refrigerated container according to claim 1, characterized in that, The guiding assembly includes a first guide plate and a second guide plate disposed opposite to each other at both ends of the frame along the width direction of the frame, and the conveying channel is formed between the first guide plate and the second guide plate.

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