End fixing device for sanding of steel pipe in guardrail production

By using a first cylinder and a servo motor to drive the rubber roller to rotate, combined with a second cylinder for reinforcement, the problem of steel pipes not being able to rotate during guardrail production was solved, and effective sandblasting of the steel pipe ends was achieved, thus improving production efficiency.

CN223776926UActive Publication Date: 2026-01-09FOSHAN DAPIN INTEGRATED HOUSING CO LTD
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Patent Information

Application Number
CN202520069172.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-01-09
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

The existing end fixers for sandblasting steel pipes used in guardrail production cannot drive the steel pipes to rotate, resulting in the inability to perform effective sandblasting after the steel pipe ends are fixed.

Method used

The first cylinder pushes the structural frame and the rubber roller at its bottom to move downward, pressing the steel pipe into the arc-shaped groove. The servo motor drives the rubber roller to rotate, which in turn drives the steel pipe to rotate. The second cylinder reinforces the steel pipe to prevent it from rotating.

Benefits of technology

This technology enables the rotation and fixing of steel pipes, facilitates sandblasting at the pipe ends, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of guardrail production, in particular to an end fixing device for steel pipe sanding in guardrail production, which comprises a base, a portal frame is fixed at the top of the base through bolts, and a first cylinder is mounted at the top of the portal frame through a mounting frame. A pipe pressing rotating assembly is arranged on an output shaft, located in the portal frame, of the first air cylinder. The pipe pressing rotating assembly comprises a connecting plate fixed to the output shaft at the bottom of the first air cylinder through a flange. A servo motor is mounted at one end of the connecting plate through a mounting frame, structural frames are welded to the two sides of the connecting plate, rubber rollers are rotatably connected to the interiors of the structural frames through bearings, and a layer plate is welded to one side of the portal frame; the first air cylinder works to push the structural frame and the rubber roller at the bottom of the structural frame to move downwards, the end of the steel pipe is pressed in the arc-shaped groove, the servo motor works to drive the rubber roller to rotate, the steel pipe supported by the multiple rotating rollers can be driven to rotate, and workers can conveniently conduct sanding treatment on the end of the steel pipe.
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Description

Technical Field

[0001] This utility model relates to the field of guardrail production technology, specifically to an end fixer for sandblasting steel pipes used in guardrail production. Background Technology

[0002] Guardrails are protective and isolation facilities, usually made of materials such as metal, concrete, and plastic. They are widely used in roads, construction sites, bridges, railings, and various public places such as factories, residential areas, villas, and commercial areas to ensure the safety of people and vehicles and protect equipment and facilities.

[0003] Currently, in the production process of guardrails, a fixing device is used to secure the ends of steel pipes so that the ends of the steel pipes can be sandblasted. However, the existing end fixing devices for sandblasting steel pipes in guardrail production do not have a structure to drive the fixed steel pipe to rotate. After the end of the steel pipe is fixed, it cannot be driven to rotate. Therefore, an end fixing device for sandblasting steel pipes in guardrail production is proposed. The first cylinder pushes the structural frame and the rubber roller at its bottom to move down, pressing the steel pipe into the arc-shaped groove. The servo motor drives the rubber roller to rotate, which can drive the steel pipe to rotate. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides an end fixer for sandblasting steel pipes used in guardrail production. The first cylinder pushes the structural frame and the rubber roller at its bottom to move downward, pressing the steel pipe into the arc-shaped groove. The servo motor drives the rubber roller to rotate, which can drive the steel pipe to rotate.

[0005] The technical solution adopted by this utility model to solve its technical problem is an end fixing device for sandblasting steel pipes in guardrail production, including a base, a gantry frame fixed to the top of the base by bolts, a first cylinder mounted on the top of the gantry frame by an mounting bracket, and a pipe pressing and rotating assembly provided on the output shaft of the first cylinder located inside the gantry frame. The pipe pressing and rotating assembly includes a connecting plate fixed to the bottom output shaft of the first cylinder by a flange.

[0006] A servo motor is mounted on one end of the connecting plate via a mounting bracket. Structural frames are welded to both sides of the connecting plate. Rubber rollers are rotatably connected inside the structural frames via bearings. A shelf is welded to one side of the gantry frame. A second cylinder is mounted on the top of the shelf via a mounting bracket.

[0007] By adopting the above technical solution, the first cylinder pushes the structural frame to move down, and the rubber roller presses down the end of the steel pipe in the arc groove. The servo motor drives the rubber roller to rotate, which can drive the steel pipe to rotate. The second cylinder works to reinforce the steel pipe so that it will not rotate.

[0008] Specifically, the top surface of the base is provided with an arc-shaped groove, and rotating rollers are connected at equal intervals to the inner side of the arc-shaped groove through bearings.

[0009] Specifically, the output shaft of the second cylinder located at the bottom of the shelf is connected to a rubber pressure block via a threaded groove.

[0010] Specifically, an auxiliary rod is connected to the top of the structural frame via a threaded groove, and the auxiliary rod passes through the gantry frame.

[0011] Specifically, the output shaft on one side of the servo motor is fixedly connected to one end of the rubber roller via a connecting sleeve.

[0012] The beneficial effects of this utility model are:

[0013] (1) The end fixing device for sandblasting of steel pipes in guardrail production described in this utility model opens the first cylinder to push the structural frame and the rubber roller at its bottom to move down, pressing the end of the steel pipe into the arc groove. The servo motor drives the rubber roller to rotate, which can drive the steel pipe supported by multiple rotating rollers to rotate, making it convenient for personnel to sandblast the end of the steel pipe.

[0014] (2) The end fixing device for sandblasting steel pipe in guardrail production described in this utility model opens the second cylinder to push the rubber pressure block down, so that the rubber pressure block presses on the steel pipe, which can strengthen the steel pipe pressed by the rubber roller and prevent it from rotating. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the gantry structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the pressure tube rotating assembly of this utility model;

[0020] In the diagram: 1. Base; 101. Arc groove; 102. Rotating roller; 2. Gantry frame; 3. First cylinder; 4. Pressing tube rotating assembly; 401. Connecting plate; 402. Structural frame; 403. Rubber roller; 404. Servo motor; 5. Shelf; 6. Second cylinder; 7. Rubber pressing block; 8. Auxiliary rod. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] The first cylinder pushes the structural frame and its bottom rubber roller downwards, pressing the steel pipe into the arc-shaped groove. The servo motor drives the rubber roller to rotate, which in turn rotates the steel pipe. Figure 1-4 As shown, the present invention provides an end fixing device for sandblasting steel pipes in guardrail production, comprising a base 1, a gantry frame 2 fixed to the top of the base 1 by bolts, a first cylinder 3 mounted on the top of the gantry frame 2 by a mounting bracket, and a pipe pressing rotating assembly 4 provided on the output shaft of the first cylinder 3 located inside the gantry frame 2. The pipe pressing rotating assembly 4 includes a connecting plate 401 fixed to the bottom output shaft of the first cylinder 3 by a flange.

[0023] A servo motor 404 is mounted on one end of the connecting plate 401 via a mounting bracket. Structural frames 402 are welded to both sides of the connecting plate 401. A rubber roller 403 is rotatably connected inside the structural frame 402 via bearings. A shelf 5 is welded to one side of the gantry frame 2. A second cylinder 6 is mounted on the top of the shelf 5 via a mounting bracket.

[0024] In use, the first cylinder 3 pushes the structural frame 402 down, and the rubber roller 403 presses the end of the steel pipe in the arc groove 101. The servo motor 404 drives the rubber roller 403 to rotate, which can drive the steel pipe to rotate. The second cylinder 6 works to reinforce the steel pipe so that it will not rotate.

[0025] For example, such as Figure 2 As shown, the present invention also includes an arc-shaped groove 101 on the top surface of the base 1, and rotating rollers 102 are equidistantly connected to the inner side of the arc-shaped groove 101 via bearings.

[0026] In use, the arc-shaped groove 101 facilitates the insertion of the steel pipe end, and the rotating roller 102 can support the steel pipe without affecting its rotation.

[0027] For example, such as Figure 3 As shown, the present invention also includes a rubber pressure block 7 connected to the output shaft of the second cylinder 6 located at the bottom of the layer plate 5 via a threaded groove.

[0028] When in use, the second cylinder 6 pushes the rubber block 7 down to press the steel pipe in the arc groove 101, which can prevent the steel pipe from rotating.

[0029] For example, such as Figure 3 As shown, the present invention also includes an auxiliary rod 8 connected to the top of the structural frame 402 via a threaded groove, the auxiliary rod 8 passing through the gantry frame 2.

[0030] When in use, the auxiliary rod 8 can improve the structural stability of the structural frame 402 without affecting its up-and-down movement.

[0031] For example, such as Figure 3 , Figure 4 As shown, the present invention also includes a servo motor 404 whose output shaft is fixedly connected to one end of a rubber roller 403 via a connecting sleeve.

[0032] In use, the servo motor 404 is used to drive the rubber roller 403 to rotate.

[0033] When using this utility model, the user connects the device to an external power source using a power cord and connects the first cylinder 3 and the second cylinder 6 to an external air supply device using an air hose.

[0034] One end of the steel pipe is passed through the arc groove 101. The first cylinder 3 is opened to push the structural frame 402 and the rubber roller 403 at its bottom to move down, pressing the end of the steel pipe into the arc groove 101. The servo motor 404 is turned on to drive the rubber roller 403 to rotate, which can drive the steel pipe supported by multiple rotating rollers 102 to rotate, making it convenient for personnel to sandblast the end of the steel pipe.

[0035] When the steel pipe does not need to rotate, the operator opens the second cylinder 6 to push the rubber block 7 down, so that the rubber block 7 presses on the steel pipe, which can reinforce the steel pipe pressed by the rubber roller 403 and prevent it from rotating.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An end fixing device for sandblasting steel pipes used in guardrail production, characterized in that, Includes a base (1), the top of which is fixed with a gantry frame (2) by bolts, the top of which is mounted with a first cylinder (3) by a mounting bracket, the output shaft of the first cylinder (3) located inside the gantry frame (2) is provided with a pressure tube rotating assembly (4), the pressure tube rotating assembly (4) includes a connecting plate (401) fixed to the bottom output shaft of the first cylinder (3) by a flange; A servo motor (404) is mounted on one end of the connecting plate (401) via a mounting bracket. Structural frames (402) are welded on both sides of the connecting plate (401). A rubber roller (403) is rotatably connected inside the structural frame (402) via a bearing. A shelf (5) is welded on one side of the gantry frame (2). A second cylinder (6) is mounted on the top of the shelf (5) via a mounting bracket.

2. The end fixing device for sandblasting steel pipes used in guardrail production according to claim 1, characterized in that, The top surface of the base (1) is provided with an arc-shaped groove (101), and rotating rollers (102) are connected at equal intervals to the inner side of the arc-shaped groove (101) through bearings.

3. The end fixing device for sandblasting steel pipes used in guardrail production according to claim 1, characterized in that, The output shaft of the second cylinder (6) located at the bottom of the shelf (5) is connected to a rubber pressure block (7) via a threaded groove.

4. The end fixing device for sandblasting steel pipes used in guardrail production according to claim 1, characterized in that, The top of the structural frame (402) is connected to an auxiliary rod (8) via a threaded groove, and the auxiliary rod (8) passes through the gantry frame (2).

5. The end fixing device for sandblasting steel pipes used in guardrail production according to claim 1, characterized in that, The output shaft of the servo motor (404) is fixedly connected to one end of the rubber roller (403) via a connecting sleeve.