An extrusion device for correcting the profile shape of a rotating barrel

Abstract

The utility model discloses an extrusion device for correcting the contour shape of rotary barrel belongs to rotary barrel manufacturing technical field. The device includes arc correction subassembly, and arc correction subassembly includes first support pole, second support pole and elastic arc piece, and one end of first support pole and second support pole is fixedly connected through elastic arc piece, and the other end is free operating end, the elastic arc piece includes arc plate, and the arc plate has a certain length along the length direction, so that the arc plate can extrude the barrel wall of rotary barrel, at least one convex is formed on the inboard of arc plate, and the convex can cooperate with the recess of rotary barrel, so that the rotary barrel does not occur falling deviation when extruding, and the arc length of convex is slightly less than the arc length of arc plate. Through the extrusion of arc plate to the barrel wall of rotary barrel, thereby realizes the correction, and the convex of arc plate inboard cooperates with the recess of rotary barrel, so that the rotary barrel does not occur falling deviation when extruding.

Description

Technical Field

[0001] This utility model belongs to the field of guardrail technology, and more specifically, it relates to an extrusion device for correcting the outline shape of a rotating barrel, and more specifically, it relates to a correction device for correcting shape defects of a rotating body made of EVA or flexible polyurethane foam. Background Technology

[0002] With the development of the transportation industry, crash barriers equipped with rotating drums have been widely used due to their ability to effectively absorb impact energy and reduce accident losses. These rotating drums are typically made of ethylene-vinyl acetate (EVA) or flexible polyurethane through a foaming process. However, during the foaming process, uneven heating and other factors can cause deviations between the actual shape and the preset dimensions of the rotating drum, resulting in defects such as bulges and dents. When these defects exceed the acceptable standards, the rotating drum cannot be used normally, leading to material waste and increased production costs.

[0003] In existing technologies, correction devices for shape deviations are mostly applicable to metal products or pipe components, such as arc correction devices with bolt adjustment and pipe end correction devices driven by screws. However, these devices have the following problems: First, the applied force is concentrated and rigid, which can easily damage the internal structure of the foam material rotating barrel; second, the adjustment method is complicated and cannot be adapted to rotating barrels of different specifications; third, continuous manual force is required, resulting in high operator fatigue and low correction efficiency.

[0004] To address the aforementioned issues, a search revealed that patent document CN210851390U discloses a rotating body straightener. When in use, this straightener can only partially correct the rotating barrel, preventing the barrel from quickly completing overall correction. Utility Model Content

[0005] 1. Technical problems to be solved In view of the problems existing in the prior art, the purpose of this utility model is to provide an extrusion device for correcting the contour shape of a rotating barrel, thereby improving the efficiency of the correction work.

[0006] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution.

[0007] This utility model discloses an extrusion device for correcting the contour shape of a rotating barrel, comprising an arc-shaped correction component and a linkage adjustment component. The arc-shaped correction component, acting directly on the rotating body, includes a first support rod, a second support rod, and an elastic arc-shaped element. One end of the first support rod and the second support rod are fixedly connected via the elastic arc-shaped element, while the other end is a free operating end. By opening and closing the free operating end, the operator can rotate the first and second support rods around the connection point with the elastic arc-shaped element, thereby changing the arc curvature of the elastic arc-shaped element to conform to the surface of rotating bodies with different diameters. The elastic arc-shaped component includes an arc plate with a certain length along its length, which allows the arc plate to compress the wall of the rotating barrel; at least one protrusion is formed on the inner side of the arc plate, which can cooperate with the groove of the rotating barrel so that the rotating barrel will not fall or deviate during compression; the arc length of the protrusion is slightly smaller than the arc length of the arc plate.

[0008] The aforementioned elastic arc-shaped component is made of spring steel, which combines rigidity and elasticity. It can provide sufficient correction pressure while avoiding damage to the rotating body due to excessive pressure. The anti-slip and wear-resistant layer on its inner wall can increase the friction with the rotating body and improve the correction effect.

[0009] In one possible embodiment of this utility model, the linkage adjustment component is used to lock the correction state and reduce the intensity of manual operation. It includes an adjustment rod and a positioning rod. One end of the adjustment rod is rotatably connected to a first support rod, and one end of the positioning rod is rotatably connected to a second support rod. The adjustment rod is provided with a guide groove and several positioning grooves. The locking block on the positioning rod is embedded in the guide groove and can slide along the guide groove.

[0010] When the elastic arc-shaped component conforms to the rotating body and reaches the preset correction pressure, the locking block can slide into the positioning groove to lock, without the need for continuous manual force. One end of the adjusting rod is provided with a mounting hole communicating with the guide groove, which facilitates the insertion and removal of the locking block. The size design of the locking block ensures that it can not only pass smoothly through the mounting hole, but also slide stably in the guide groove without falling off.

[0011] In one possible embodiment of this utility model, the free operating ends of the first and second support rods are provided with anti-slip grips to improve operating comfort and safety. The fixed connection between the first and second support rods and the elastic arc-shaped component can be achieved by welding, riveting, or threaded connection to ensure connection strength and meet long-term use requirements.

[0012] 3. Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The device of this utility model uses an arc plate to press the wall of the rotating barrel to achieve correction; the protrusion on the inner side of the arc plate cooperates with the groove of the rotating barrel so that the rotating barrel will not fall or shift during the pressing, thus playing a positioning role. (2) This utility model applies uniform and flexible pressure by using an elastic arc-shaped part to fit the surface of the foam material rotating body, which can effectively correct shape defects such as protrusions and depressions, so that the actual size of the rotating body meets the preset standard. The correction process does not require complicated operation, is highly efficient, significantly improves the finished product qualification rate, and reduces production costs. (3) The elastic arc-shaped part is made of spring steel, which has both rigidity and elasticity. It ensures sufficient straightening pressure and avoids damage to the rotating body structure. It is compatible with the characteristics of foam material and solves the problem that existing rigid straightening devices are prone to damaging workpieces. (4) The linkage adjustment component locks the correction state through the cooperation of the locking block and the positioning slot, which eliminates the need for continuous manual force, reduces operator fatigue, and has low requirements for operator proficiency, which is conducive to continuous production. (5) The design of several positioning slots allows the device to be adapted to rotating bodies of different diameters, and the curvature adjustment range of the elastic arc-shaped parts is wide and the applicability is strong. (6) The device has a simple overall structure, reasonable design, low manufacturing cost, convenient operation, and is easy to promote and apply. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the rotating barrel structure, which is the application object of this utility model. Figure 2 This is a schematic diagram of the extrusion device of this utility model for correcting the contour shape of a rotating barrel; Figure 3 This is a top view of the extrusion device of this utility model for correcting the contour shape of a rotating barrel; Figure 4 This is a schematic diagram of another extrusion device used to correct the profile shape of a rotating barrel; Figure 5 This is a schematic diagram of another extrusion device used to correct the profile shape of a rotating barrel; Figure 6 This is a schematic diagram showing the usage of the extrusion device of this utility model for correcting the contour shape of a rotating barrel; Figure 7 This is a schematic diagram of another extrusion device used to correct the profile shape of a rotating barrel; Explanation of markings in the diagram: 1. Arc-shaped correction component; 11. First support rod; 12. Second support rod; 13. Elastic arc-shaped component; 131. Arc plate; 132. Protrusion; 14. Anti-slip grip; 2. Linkage adjustment component; 21. Adjustment rod; 211. Guide groove; 212. Mounting hole; 213. Positioning groove; 22. Positioning rod; 221. Locking block. Detailed Implementation

[0014] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] The present invention will be further described below with reference to the embodiments.

[0017] like Figures 1 to 7 As shown, the extrusion device for correcting the contour shape of a rotating barrel in this embodiment includes an arc-shaped correction component 1 and a linkage adjustment component 2. The arc-shaped correction component 1 consists of a first support rod 11, a second support rod 12, and an elastic arc-shaped component 13. Both the first support rod 11 and the second support rod 12 are made of high-strength aluminum alloy and are 300mm long. One end of each support rod is fixedly connected to the elastic arc-shaped component 13 by welding, and the other end is provided with a rubber anti-slip grip 14. The elastic arc-shaped component 13 is made of spring steel sheet with a thickness of 3mm. In the non-working state, the diameter of the arc is 380mm. The inner wall is provided with a silicone anti-slip and wear-resistant layer to prevent scratching the surface of the rotating body during the correction process.

[0018] like Figure 2 , Figure 3 and Figure 4 As shown, the elastic arc-shaped component 13 includes an arc plate 131, which has a certain length along its length direction, allowing it to compress the wall of the rotating barrel. One, two, or three protrusions 132 are formed on the inner side of the arc plate 131. These protrusions 132 can cooperate with the grooves of the rotating barrel, preventing the barrel from falling or shifting during compression. The arc length of the protrusion 132 is slightly smaller than the arc length of the arc plate 131.

[0019] like Figure 7As shown, the aforementioned linkage adjustment assembly 2 includes an adjustment rod 21 and a positioning rod 22, both made of stainless steel. One end of the adjustment rod 21 is rotatably connected to the first support rod 11 via a rivet, and one end of the positioning rod 22 is rotatably connected to the second support rod 12 via a rivet. The adjustment rod 21 has a guide groove 211, which is 150mm long and 10mm wide, and one end has a mounting hole 212 with a diameter of 16mm, which communicates with the guide groove 211. Four positioning grooves 213 are provided on the adjustment rod 21 along the length of the guide groove 211. The positioning grooves 213 are perpendicularly connected to the guide groove 211 and extend 15mm closer to the second support rod 12. The end of the positioning rod 22 away from the second support rod 12 is provided with a cylindrical locking block 221. The diameter of the locking block 221 is 14mm, which is smaller than the diameter of the mounting hole 212 and larger than the width of the guide groove 211. It can slide along the guide groove 211 and be locked into the positioning groove 213.

[0020] The usage process in this embodiment is as follows: When the rotating body has finished foaming and cooled to about 100°C, the residual heat is used for correction. The operator holds the non-slip handle 14 and places the elastic arc-shaped component 13 on the outside of the part of the rotating body that needs to be corrected. By opening and closing the first support rod 11 and the second support rod 12, the elastic arc-shaped component 13 is made to conform to the surface of the rotating body and pressure is applied. At this time, the locking block 221 on the positioning rod 22 slides along the guide groove 211 of the adjusting rod 21. When the preset correction pressure is reached, the locking block 221 is slid into the corresponding positioning groove 213 to lock it. This state is maintained for 5 seconds to complete the shape correction. After the correction is completed, the locking block 221 is slid back into the guide groove 211, the first support rod 11 and the second support rod 12 are released, the elastic arc-shaped component 13 returns to its original shape, and the device can be removed.

[0021] The first support rod 11, the second support rod 12 and the elastic arc-shaped component 13 are connected by threads, which facilitates the replacement and maintenance of the elastic arc-shaped component 13; there are 4 positioning grooves 213, which further expands the adaptability range of the device and can meet the correction needs of rotating bodies of different specifications with inner diameter of 140mm±10mm and outer diameter of 220mm±10mm to 350mm±10mm.

[0022] This invention relates to an extrusion device for correcting the outline shape of a rotating barrel. It applies uniform and flexible pressure to the rotating foam material through an elastic arc-shaped component, effectively correcting shape defects. With the help of a linkage adjustment component, it achieves labor-saving locking, is easy to operate, and highly efficient. It can significantly improve the qualified rate of the finished rotating body. Moreover, it has a simple structure, wide applicability, and good practical value and promotion prospects.

[0023] The above examples are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Any modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A pressing device for correcting the contour shape of a rotating barrel, comprising an arc-shaped correction component (1), the arc-shaped correction component (1) comprising a first support rod (11), a second support rod (12), and an elastic arc-shaped element (13), one end of the first support rod (11) and the second support rod (12) being fixedly connected by the elastic arc-shaped element (13), and the other end being a free operating end, the first support rod (11) and the second support rod (12) being rotatable around the connection point with the elastic arc-shaped element (13), the elastic arc-shaped element (13) changing its arc curvature with the rotational movement of the first support rod (11) and the second support rod (12); characterized in that: The elastic arc-shaped component (13) includes an arc plate (131) with a certain length along the length direction, so that the arc plate (131) can squeeze the wall of the rotating barrel; at least one protrusion (132) is formed on the inner side of the arc plate (131), and the protrusion (132) can cooperate with the groove of the rotating barrel so that the rotating barrel will not fall or deviate during the squeezing.

2. The extrusion device for correcting the profile shape of a rotating barrel according to claim 1, characterized in that: The arc length of the protrusion (132) is slightly smaller than the arc length of the arc plate (131).

3. The extrusion device for correcting the profile shape of a rotating barrel according to claim 1, characterized in that: It also includes a linkage adjustment component (2), which includes an adjustment rod (21) and a positioning rod (22). One end of the adjustment rod (21) is rotatably connected to the first support rod (11), and one end of the positioning rod (22) is rotatably connected to the second support rod (12). The adjustment rod (21) is provided with a guide groove (211), and the end of the positioning rod (22) away from the second support rod (12) is provided with a locking block (221). The locking block (221) is embedded in the guide groove (211) and can slide along the guide groove (211).

4. The extrusion device for correcting the profile shape of a rotating barrel according to claim 3, characterized in that: The first support rod (11), the second support rod (12) and the elastic arc-shaped component (13) are fixedly connected by one of welding, riveting or threaded connection.

5. The extrusion device for correcting the contour shape of a rotating barrel according to claim 4, characterized in that: The elastic arc-shaped component (13) is made of spring steel.

6. The extrusion device for correcting the profile shape of a rotating barrel according to claim 5, characterized in that: The adjusting rod (21) is also provided with a mounting hole (212), which is located at one end of the guide groove (211) and communicates with the guide groove (211). The diameter of the mounting hole (212) is greater than the width of the guide groove (211).

7. The extrusion device for correcting the profile shape of a rotating barrel according to claim 6, characterized in that: The maximum width of the card block (221) is less than the diameter of the mounting hole (212) and greater than the width of the guide groove (211).

8. The extrusion device for correcting the profile shape of a rotating barrel according to claim 7, characterized in that: The adjusting rod (21) is provided with a plurality of positioning grooves (213). The positioning grooves (213) are distributed along the length direction of the guide groove (211) and are perpendicularly connected to the guide groove (211). The locking block (221) can be locked into the positioning groove (213) to achieve positioning.

9. The extrusion device for correcting the profile shape of a rotating barrel according to claim 8, characterized in that: The number of positioning grooves (213) is 3-6, and the end of the positioning groove (213) away from the guide groove (211) extends towards the second support rod (12).

10. The extrusion device for correcting the profile shape of a rotating barrel according to claim 9, characterized in that: The free operating ends of the first support rod (11) and the second support rod (12) are provided with anti-slip grips (14).

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