Quadrilateral synchronous centering compression roller mechanism for pipe feeding

Abstract

The invention discloses a quadrilateral synchronous centering compression roller mechanism for pipe feeding, and relates to the technical field of pipe machining equipment, in particular to the quadrilateral synchronous centering compression roller mechanism for pipe feeding. The device comprises a rack, a compression roller assembly, a quadrilateral adjusting mechanism and a driving mechanism, the pressing roller assembly comprises an upper pressing roller and a lower pressing roller which are oppositely arranged, and a conveying channel for pipes to pass through is formed between the upper pressing roller and the lower pressing roller. And the driving mechanism is arranged on one side of the rack and is connected with the compression roller assembly through a transmission shaft. The driving mechanism is used for driving the pressing roller assembly to rotate so as to press and convey the pipes, and a driving gear and a chain on the driving mechanism are connected with a driving motor. Automatic centering adjustment of the upper and lower compression rollers on the pipe is achieved through the quadrilateral synchronous adjusting mechanism, the conveying center can be kept basically unchanged when the distance between the compression rollers is changed to adapt to different pipe diameters, and therefore the stability and machining precision in the pipe feeding process are improved.

Description

Technical Field

[0001] This invention relates to the field of pipe processing equipment technology, and specifically to a quadrilateral synchronous centering pressure roller mechanism for pipe feeding. Background Technology

[0002] In pipe processing, straightening, or automatic feeding, it is often necessary to use pressure roller mechanisms to press and convey the pipes, ensuring their stable entry into subsequent processing equipment. Existing pipe feeding devices typically employ fixed-gap pressure rollers or single-sided adjustable pressure roller structures. When processing pipes of different diameters, the positions of the upper and lower pressure rollers need to be adjusted separately.

[0003] Existing pipe feeding devices typically employ a fixed-gap pressure roller structure or a single-sided adjustable pressure roller structure. When processing pipes of different diameters, the positions of the upper and lower pressure rollers need to be adjusted separately. This structure is prone to the following problems in practical use: First, asynchronous adjustment of the upper and lower pressure rollers can easily cause the pipe to deviate from the conveying centerline, thus affecting conveying stability; second, the pipe is prone to swaying or deviation during conveying, affecting subsequent processing accuracy; and third, the pressure roller adjustment structure is complex, has low adjustment efficiency, and is difficult to adapt to rapid switching between different pipe specifications. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings and deficiencies of the prior art by providing a quadrilateral synchronous centering pressure roller mechanism for pipe feeding. This mechanism achieves automatic centering adjustment of the upper and lower pressure rollers on the pipe through a quadrilateral synchronous adjustment mechanism. When the pressure roller spacing is changed to adapt to different pipe diameters, the conveying center remains basically unchanged, thereby improving the stability and processing accuracy of the pipe feeding process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a frame 10, a pressure roller assembly 20, a quadrilateral adjustment mechanism 30, and a drive mechanism 40; the pressure roller assembly 20 includes an upper pressure roller 201 and a lower pressure roller 202 arranged opposite to each other, forming a conveying channel 203 for the passage of pipes; the drive mechanism 40 is disposed on one side of the frame 10 and connected to the pressure roller assembly 20 via a transmission shaft 101. It drives the pressure roller assembly 20 to rotate to achieve the pressing and conveying of pipes, and the drive gear 401 and chain on the drive mechanism 40 are connected to a drive motor.

[0006] The quadrilateral adjustment mechanism 30 is installed inside the frame 10. The upper and lower ends of the quadrilateral adjustment mechanism 30 are connected to the upper pressure roller 201 and the lower pressure roller 202 respectively to drive the upper pressure roller 201 and the lower pressure roller 202 to move synchronously closer to or further away from the center, so as to adjust the pressure roller spacing and keep the center position of the conveying channel basically unchanged. The quadrilateral adjustment mechanism 30 is connected to an adjustment screw 301. The upper end of the adjustment screw 301 is provided with an operating handle 302. The quadrilateral adjustment mechanism 30 is driven to move by rotating the operating handle 302.

[0007] The quadrilateral adjustment mechanism 30 includes four connecting rods 303 that are hinged together in sequence. The four connecting rods 303 form a parallelogram mechanism. The upper pressure roller 201 and the lower pressure roller 202 are respectively installed at the upper and lower connection points of the parallelogram mechanism.

[0008] The upper pressure roller 201 and the lower pressure roller 202 are respectively provided with pressure roller mounting seats 203 at both ends, and the pressure roller mounting seats 203 can slide up and down along the guide column 102 on the frame 10.

[0009] The guide post 102 is a vertically arranged cylindrical guide shaft, and the pressure roller mounting base 203 is provided with a guide sleeve 1021 that cooperates with the guide post 102.

[0010] The adjusting screw 301 is threadedly connected to the frame 10, and the lower end of the adjusting screw 301 is connected to the upper part of the quadrilateral adjusting mechanism 30.

[0011] The drive mechanism 40 includes a drive gear 401, which is connected to a drive motor via a chain.

[0012] Both the upper pressure roller 201 and the lower pressure roller 202 are cylindrical pressure roller structures, and the outer surface of the pressure rollers is provided with an anti-slip layer or a knurled structure.

[0013] The working principle of the present invention is as follows: When in use, the adjusting screw 301 is first rotated by rotating the operating handle 302. Since the adjusting screw 301 is threadedly connected to the frame 10, the adjusting screw 301 will generate axial displacement during rotation, thereby driving the quadrilateral adjusting mechanism 30 connected to it to move as a whole.

[0014] The quadrilateral adjustment mechanism 30 consists of four sequentially hinged connecting rods 303 forming a parallelogram mechanism. When the adjusting screw 301 drives the mechanism to move, the upper pressure roller 201 and the lower pressure roller 202 are connected to the upper and lower connection points of the quadrilateral adjustment mechanism 30 through the pressure roller mounting base 203, so that the upper pressure roller 201 and the lower pressure roller 202 can move closer to or further away from the center synchronously, realizing the synchronous adjustment of the pressure roller spacing and keeping the center position of the conveying channel 203 basically unchanged.

[0015] During the adjustment process, the pressure roller mounting seat 203 slides up and down along the guide column 102 on the frame 10. The guide sleeve 1021 on the guide column 102 guides the pressure roller mounting seat 203, thereby ensuring the stability and linear motion accuracy of the pressure roller during the movement process.

[0016] When the device starts working, the drive mechanism 40 is connected to the drive motor via a chain. The drive motor drives the drive gear 401 to rotate. The drive gear 401 drives the upper pressure roller 201 and the lower pressure roller 202 to rotate via the transmission shaft 101. Under the action of the anti-slip layer or knurled structure on the surface of the pressure roller, the pipe is clamped by the pressure roller and steadily conveyed forward along the conveying channel, thereby realizing the automatic pressing and feeding of the pipe.

[0017] The beneficial effects of this invention after adopting the above technical solution are as follows: By setting a quadrilateral adjustment mechanism, the upper and lower pressure rollers can move towards or away from the center synchronously during the adjustment process. This ensures that the center position of the conveying channel remains essentially unchanged when the pressure roller spacing is changed to accommodate pipes of different diameters, achieving automatic centering and conveying of the pipes. This effectively avoids the problems of pipe offset, deviation, or unstable conveying that easily occur when traditional pressure rollers are adjusted independently. Simultaneously, the cooperation between the adjusting screw and the operating handle makes the adjustment process of the pressure roller spacing simpler and more reliable, enabling rapid adaptation to the processing needs of pipes of different specifications. Furthermore, the guide column and guide sleeve structure guide the pressure roller mounting base, ensuring stable linear motion of the pressure roller during adjustment, improving the roller's motion accuracy and overall structural stability. Combined with the drive mechanism that rotates the pressure roller, the anti-slip layer or knurled structure on the roller surface provides stable clamping of the pipe, achieving continuous and stable pipe feeding and improving the device's conveying stability and processing adaptability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a front view of the present invention;

[0021] Figure 3 yes Figure 2 The right view;

[0022] Figure 4 This is a schematic diagram of the structure of the present invention after the drive shaft 101 has been removed;

[0023] Figure 5 yes Figure 4 Weekly chart.

[0024] Explanation of reference numerals in the attached drawings: frame 10, pressure roller assembly 20, quadrilateral adjustment mechanism 30, drive mechanism 40, upper pressure roller 201, lower pressure roller 202, transmission shaft 101, drive gear 401, adjusting screw 301, operating handle 302, connecting rod 303, pressure roller mounting seat 203, guide column 102, guide sleeve 1021. Detailed Implementation

[0025] See Figure 1-5 As shown, the technical solution adopted in this specific embodiment is as follows: it includes a frame 10, a pressure roller assembly 20, a quadrilateral adjustment mechanism 30, and a drive mechanism 40; the pressure roller assembly 20 includes an upper pressure roller 201 and a lower pressure roller 202 arranged opposite to each other, forming a conveying channel 203 for the passage of pipes; the drive mechanism 40 is located on one side of the frame 10 and connected to the pressure roller assembly 20 via a transmission shaft 101. It is used to drive the pressure roller assembly 20 to rotate to achieve the pressing and conveying of pipes, and the drive gear 401 and chain on the drive mechanism 40 are connected to a drive motor. The quadrilateral adjustment mechanism 30 is disposed within the frame 10. Its upper and lower ends are connected to the upper pressure roller 201 and the lower pressure roller 202, respectively, to drive them synchronously towards or away from the center, thereby adjusting the roller spacing and maintaining the center position of the conveying channel essentially unchanged. The quadrilateral adjustment mechanism 30 is connected to an adjusting screw 301, the upper end of which is equipped with an operating handle 302. Rotating the operating handle 302 drives the quadrilateral adjustment mechanism 30 to move. The quadrilateral adjustment mechanism 30 includes four sequentially hinged connecting rods 303, forming a parallelogram mechanism. The upper pressure roller 201 and the lower pressure roller 202 are respectively installed at the upper and lower connection points of the parallelogram mechanism. Pressure roller mounting seats 203 are respectively provided at both ends of the upper pressure roller 201 and the lower pressure roller 202, and these mounting seats 203 can slide up and down along the guide post 102 on the frame 10. The guide post 102 is a vertically arranged cylindrical guide shaft, and the pressure roller mounting base 203 is provided with a guide sleeve 1021 that cooperates with the guide post 102. The adjusting screw 301 is threadedly connected to the frame 10, and the lower end of the adjusting screw 301 is connected to the upper part of the quadrilateral adjusting mechanism 30. The driving mechanism 40 includes a driving gear 401, which is connected to a driving motor through a chain. Both the upper pressure roller 201 and the lower pressure roller 202 are cylindrical pressure roller structures, and the outer surface of the pressure roller is provided with an anti-slip layer or a knurled structure.

[0026] This specific embodiment utilizes a quadrilateral adjustment mechanism to allow the upper and lower pressure rollers to move synchronously closer to or further away from the center during adjustment. This ensures that the center position of the conveying channel remains essentially constant while adjusting the roller spacing to accommodate pipes of different diameters, achieving automatic centering and conveying of the pipes. This effectively avoids the pipe offset, deviation, or unstable conveying problems that easily occur when traditional pressure rollers are adjusted independently. Furthermore, the coordination between the adjusting screw and the operating handle simplifies and reliably the roller spacing adjustment process, enabling rapid adaptation to the processing needs of different pipe specifications. Additionally, the guide column and guide sleeve structure guide the pressure roller mounting base, ensuring stable linear motion of the pressure rollers during adjustment, improving the roller's motion accuracy and overall structural stability. Combined with the drive mechanism that rotates the pressure rollers, the anti-slip layer or knurled structure on the roller surface provides stable clamping of the pipes, achieving continuous and stable pipe feeding and improving the device's conveying stability and processing adaptability.

[0027] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A quadrilateral synchronous centering pressure roller mechanism for feeding pipes, characterized in that: It includes a frame (10), a pressure roller assembly (20), a quadrilateral adjustment mechanism (30), and a drive mechanism (40); the pressure roller assembly (20) includes an upper pressure roller (201) and a lower pressure roller (202) arranged opposite to each other, forming a conveying channel (203) for passing through the pipe between the upper pressure roller (201) and the lower pressure roller (202); the drive mechanism (40) is located on one side of the frame (10) and connected to the pressure roller assembly (20) via a drive shaft (101).

2. The quadrilateral synchronous centering pressure roller mechanism for pipe feeding according to claim 1, characterized in that: The quadrilateral adjustment mechanism (30) is installed inside the frame (10). The upper and lower ends of the quadrilateral adjustment mechanism (30) are connected to the upper pressure roller (201) and the lower pressure roller (202) respectively to drive the upper pressure roller (201) and the lower pressure roller (202) to move towards or away from the center synchronously, so as to adjust the pressure roller spacing and keep the center position of the conveying channel basically unchanged. The quadrilateral adjustment mechanism (30) is connected to an adjustment screw (301). The upper end of the adjustment screw (301) is provided with an operating handle (302). The quadrilateral adjustment mechanism (30) is driven to move by rotating the operating handle (302).

3. The quadrilateral synchronous centering pressure roller mechanism for pipe feeding according to claim 1, characterized in that: The quadrilateral adjustment mechanism (30) includes four connecting rods (303) that are hinged together in sequence. The four connecting rods (303) form a parallelogram mechanism. The upper pressure roller (201) and the lower pressure roller (202) are respectively installed at the upper and lower connection points of the parallelogram mechanism.

4. A quadrilateral synchronous centering pressure roller mechanism for pipe feeding according to claim 1, characterized in that: The upper pressure roller (201) and the lower pressure roller (202) are respectively provided with pressure roller mounting seats (203) at both ends, and the pressure roller mounting seats (203) can slide up and down along the guide column (102) on the frame (10).

5. A quadrilateral synchronous centering pressure roller mechanism for pipe feeding according to claim 4, characterized in that: The guide post (102) is a vertically arranged cylindrical guide shaft, and the pressure roller mounting base (203) is provided with a guide sleeve (1021) that cooperates with the guide post (102).

6. A quadrilateral synchronous centering pressure roller mechanism for pipe feeding according to claim 2, characterized in that: The adjusting screw (301) is threadedly connected to the frame (10), and the lower end of the adjusting screw (301) is connected to the upper part of the quadrilateral adjusting mechanism (30).

7. A quadrilateral synchronous centering pressure roller mechanism for pipe feeding according to claim 1, characterized in that: The drive mechanism (40) includes a drive gear (401), which is connected to a drive motor via a chain.

8. A quadrilateral synchronous centering pressure roller mechanism for pipe feeding according to claim 1, characterized in that: Both the upper pressure roller (201) and the lower pressure roller (202) are cylindrical pressure roller structures, and the outer surface of the pressure roller is provided with an anti-slip layer or a knurled structure.

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