Nodular cast iron pipe receiving and delivering device and micro-tube chamfering machine

Abstract

The utility model discloses a nodule cast iron pipe is with send device and micro top pipe chamfering machine, a nodule cast iron pipe is with send device, including rotating frame (1), be equipped with and side by side two rotating wheels (2) on rotating frame (1), one side of rotating frame (1) is equipped with pipe frame (3), its characterized in that: still include the support plate (4) between two rotating wheels (2), the bottom of support plate (4) is connected rotating frame (1) through first telescopic link, one side of pipe frame (3) is equipped with the first baffle (5) of rotation connection rotating frame (1), and the upper end of first baffle (5) extends to the upper of rotating wheel (2) and forms the pipe blocking portion (501), one side of pipe frame (3) is equipped with the first limit block (6) for the one -way location of first baffle (5). The utility model can send to the nodule cast iron pipe on rotating wheel group, thereby improves the pipe stability of rotating wheel group and service life of going in and out.

Description

Technical Field

[0001] This utility model relates to a ductile iron pipe processing device, and more particularly to a ductile iron pipe receiving device and a micro-jacking pipe chamfering machine. Background Technology

[0002] Currently, the production process of ductile iron pipes often requires the use of rotating wheel sets to drive the pipes to rotate, enabling equipment such as cutting machines and chamfering machines to process the high-speed rotating pipes. Based on this, manufacturers commonly use pipe-turning frames to transport the ductile iron pipes. As the frame rotates and rises, it lifts and transports the pipes from the previous station, causing them to roll along the inclined frame into the rotating wheel set at the current station.

[0003] However, the aforementioned conveying method has a drawback: due to the significant differences in diameter between ductile iron pipes of different specifications, the size and spacing of the two rotating wheels need to be balanced to ensure stable driving of pipes of different sizes and to guarantee the versatility of the rotating wheel assembly when used with different ductile iron pipes. This results in larger diameter and heavier ductile iron pipes easily passing through the groove in the middle of the rotating wheel assembly and continuing to roll backward, reducing the stability of the rotating wheel assembly when stopping the pipe. When smaller diameter and heavier ductile iron pipes roll into the rotating wheel assembly, the height difference between the ductile iron pipe and the rotating wheel can cause pipe impact, increasing the possibility of damage to the rotating wheel due to stress.

[0004] Therefore, existing ductile iron pipes suffer from poor infeed stability and are prone to equipment damage when rolling into the rotating wheel assembly. Utility Model Content

[0005] The purpose of this invention is to provide a receiving and feeding device for ductile iron pipes and a micro-jacking and chamfering machine. It can receive and feed ductile iron pipes on a rotating wheel assembly, thereby improving the inlet and outlet stability and service life of the rotating wheel assembly.

[0006] The technical solution of this utility model: a receiving and conveying device for ductile iron pipes, including a rotating frame, two rotating wheels arranged side by side on the rotating frame, a pipe-flipping frame on one side of the rotating frame, and a support plate located between the two rotating wheels. The bottom of the support plate is connected to the rotating frame via a first telescopic rod. A first baffle rotatably connects to the rotating frame on one side of the pipe-flipping frame. The upper end of the first baffle extends above the rotating wheels and forms a pipe-blocking part. A first limiting block for unidirectionally limiting the first baffle is provided on one side of the pipe-flipping frame.

[0007] In the aforementioned ductile iron pipe receiving and conveying device, the lower end of the pipe-turning frame is connected to a second telescopic rod.

[0008] In the aforementioned ductile iron pipe conveying device, both the first telescopic rod and the second telescopic rod are cylinders.

[0009] In the aforementioned ductile iron pipe receiving device, the support plates on both sides of the first telescopic rod are slidably connected to the rotating frame via guide rods.

[0010] In the aforementioned ductile iron pipe conveying device, a locking block that cooperates with the first limiting block is provided on one side of the first baffle.

[0011] In the aforementioned ductile iron pipe conveying device, a transfer plate is connected to the front end of the rotating frame along the conveying direction of the ductile iron pipe. The top height of the transfer plate is the same as the height of the upper end face of the rotating wheel, and one end of the transfer plate extends to the outside of the rotating wheel.

[0012] In the aforementioned ductile iron pipe receiving device, a second baffle is rotatably connected to the transfer plate, and a second limiting block is fixedly connected to the transfer plate on one side of the second baffle. The second limiting block is used to limit the second baffle in one direction.

[0013] A micro jacking pipe beveling machine is also provided, which includes the aforementioned ductile iron pipe feeding device.

[0014] The aforementioned micro-jacking pipe chamfering machine includes a fixed frame and a sliding frame. A rotating frame is connected to one side of both the fixed frame and the sliding frame. The rotating wheel and the pipe-turning frame are symmetrically arranged on the two rotating frames and are distributed at left and right intervals. A first baffle is connected to both rotating frames.

[0015] Compared with the prior art, this utility model has the following characteristics:

[0016] (1) The present invention, through the structural cooperation of the support plate and the first telescopic rod, can support the ductile iron pipe after it rolls into the rotating frame, thereby preventing the small-diameter ductile iron pipe from being crushed during the rolling process; at the same time, through the structural cooperation of the pipe flipping frame and the first baffle, the ductile iron pipe can be unidirectionally limited, thereby effectively preventing the ductile iron pipe from passing through the rotating wheel and continuing to roll forward, thereby improving the stability of the ductile iron pipe entering the pipe;

[0017] (2) After the ductile iron pipe is processed, the pipe flipping frame is lifted to transport the ductile iron pipe. At the same time, the first limiting block rotates with the pipe flipping frame until it separates from the first baffle, thereby releasing the limitation on the first baffle. This allows the first baffle to rotate under the pressure of the ductile iron pipe when the ductile iron pipe rolls out of the pipe, ensuring the stability of the ductile iron pipe when it exits the pipe.

[0018] (3) By limiting the structure of the transfer plate, the transfer plate can support and guide the ductile iron pipe, so that the ductile iron pipe can roll along the transfer plate to the two rotating wheels after exiting from the previous station, further improving the infeed stability of the ductile iron pipe; on this basis, through the structural cooperation of the second limiting block and the second baffle, the second baffle can rotate in cooperation when the ductile iron pipe rolls in, and limit it in one direction after the ductile iron pipe rolls into place, thereby preventing the ductile iron pipe from rolling back and ensuring the stability of the ductile iron pipe on the rotating wheels;

[0019] Therefore, this utility model can connect and disconnect ductile iron pipes on the rotating wheel assembly, thereby improving the stability and service life of the inlet and outlet pipes of the rotating wheel assembly. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of Example 1;

[0021] Figure 2 This is a top view of Embodiment 1;

[0022] Figure 3 This is a structural schematic diagram of Example 2;

[0023] Figure 4 This is a diagram showing the state of DN300 ductile iron pipe and DN800 ductile iron pipe on a rotating wheel.

[0024] The markings in the attached diagram are as follows: 1-rotating frame, 2-rotating wheel, 3-pipe flipping frame, 4-support plate, 5-first baffle, 6-first limiting block, 7-second telescopic rod, 8-guide rod, 9-transfer plate, 10-second baffle, 11-second limiting block, 12-fixed frame, 13-sliding frame, 14-chamfering mechanism, 501-pipe blocking part, 502-clamping block. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0026] Example 1. A receiving and feeding device for ductile iron pipes, configured as follows: Figure 1-2As shown, the device includes a rotating frame 1 with two rotating wheels 2 arranged side by side, spaced apart. A drive motor is externally connected to each rotating wheel 2, causing the wheels to rotate. A pipe-flipping frame 3 is located on one side of the rotating frame 1. It also includes a support plate 4 located between the two rotating wheels 2. The bottom of the support plate 4 is connected to the rotating frame 1 via a first telescopic rod, which is located inside the rotating frame 1. A first baffle 5, rotatably connected to the rotating frame 1, is located on one side of the pipe-flipping frame 3. In its natural state, the first baffle 5 is vertically positioned, with its upper end extending above the rotating wheels 2 to form a pipe-blocking section 501. A first limiting block 6, used for unidirectionally limiting the first baffle 5, is located on one side of the pipe-flipping frame 3.

[0027] When the ductile iron pipe is placed on the rotating wheel 2, the ductile iron pipe and the first baffle 5 are staggered in the front and back along the conveying direction of the ductile iron pipe, so as to prevent the first baffle 5 from obstructing the normal rotation of the ductile iron pipe.

[0028] The lower end of the pipe-flipping frame 3 is connected to a second telescopic rod 7.

[0029] Both the first telescopic rod and the second telescopic rod 7 are cylinders.

[0030] The support plates 4 on both sides of the first telescopic rod are slidably connected to the rotating frame 1 via the guide rod 8.

[0031] The first baffle 5 has a locking block 502 on one side that cooperates with the first limiting block 6.

[0032] The rotating frame 1 is connected to a transfer plate 9 at the front end along the conveying direction of the ductile iron pipe. There are two transfer plates 9, which are symmetrically arranged on the front and rear sides of the rotating wheel 2. The top height of the transfer plate 9 is the same as the height of the upper surface of the rotating wheel 2, and one end of the transfer plate 9 extends to the outside of the rotating wheel 2.

[0033] A second baffle 10 is rotatably connected to the transfer plate 9. The second baffle 10 is vertically arranged in its natural state and its upper end extends above the rotating wheel 2. A second limiting block 11 is fixedly connected to the transfer plate 9 on one side of the second baffle 10. The second limiting block 11 is used to limit the second baffle 10 in one direction.

[0034] When the ductile iron pipe is placed on the rotating wheel 2, the transfer plate 9, the second baffle 10 and the ductile iron pipe are staggered in front and behind along the conveying direction of the ductile iron pipe, so as to prevent the transfer plate 9 and the second baffle 10 from obstructing the normal rotation of the ductile iron pipe.

[0035] The existing DN300 and DN800 ductile iron pipes are in the following state on the rotating wheel 2: Figure 4As shown, the height difference between the bottom surface of the DN800 ductile iron pipe and the top surface of the rotating wheel 2 after placement is small, making it easy for the DN800 ductile iron pipe to roll directly off the rotating wheel 2 during rolling, posing a risk of pipe falling off. However, the height difference between the bottom surface of the DN300 ductile iron pipe and the top surface of the rotating wheel 2 after placement is large, causing the DN300 ductile iron pipe to fall during rolling and exert a greater impact force on the rotating wheel 2, resulting in pipe crushing.

[0036] In this embodiment, during the pipe feeding process, the pipe-turning frame at the previous station first drives the ductile iron pipe to roll into the transfer plate 9, and then rolls along the transfer plate 9 to the interval between the rotating wheels 2 on both sides. During the rolling process, the ductile iron pipe will squeeze the second baffle 10, causing the upper end of the second baffle 10 to rotate under the pressure to below the rotating wheel 2, thus not obstructing the rolling feeding of the ductile iron pipe.

[0037] When the ductile iron pipe rolls between the two rotating wheels 2, the support plate 4 in its elevated position supports the pipe, preventing it from falling directly. Simultaneously, the first baffle 5, limited by the first limiting block 6, restricts the pipe from rolling further forward out of the rotating wheel 2. Furthermore, the second baffle 10, after separating from the pipe, returns to a vertical position and, in conjunction with the second limiting block 11, limits the pipe to prevent it from rolling backward. After the pipe stops, the first telescopic rod lowers the support plate 4 until it contacts the rotating wheel 2, at which point the rotating wheel 2 replaces the support plate 4 in supporting and driving the pipe's rotation.

[0038] After the ductile iron pipe is processed, the second telescopic rod 7 drives the pipe flipping frame 3 to rise and send the ductile iron pipe to the next station. As the pipe flipping frame 3 rises, the first limiting block 6 separates from the clamping block 502 and releases the rotation limit on the first baffle 5, so that the first baffle 5 can rotate in coordination with the pressure of the ductile iron pipe when the ductile iron pipe rolls out of the pipe, thereby realizing the normal pipe exit of the ductile iron pipe.

[0039] Example 2. Micro-jacketing pipe beveling machine, configured as follows: Figure 3As shown, it includes a fixed frame 12 and a sliding frame 13. The sliding frame 13 is placed on the base by wheels. The sliding frame 13 and the base are connected to each other by a gear and rack transmission mechanism. The gear and rack transmission mechanism can be driven by a motor to move the sliding frame 13 horizontally. A conventional chamfering mechanism 14 is connected to both the fixed frame 12 and the sliding frame 13. The ductile iron pipe receiving device in Embodiment 1 is connected to one side of both the fixed frame 12 and the sliding frame 13. The rotating frames 1 of the two sets of ductile iron pipe receiving devices are respectively connected to the fixed frame 12 and the sliding frame 13. The rotating wheels 2 and the pipe flipping frame 3 are symmetrically arranged on the two rotating frames 1 and distributed at left and right intervals. A first baffle 5 and a second baffle 10 are connected to both rotating frames 1.

[0040] Based on Example 1, this example installs the ductile iron pipe conveying device onto the micro jacking pipe chamfering machine, enabling it to convey the micro jacking pipe blank and perform chamfering on the micro jacking pipe blank through the cooperation of the rotating wheel 2 and the chamfering mechanism, thereby realizing the application of the ductile iron pipe conveying device in the micro jacking pipe production line.

Claims

1. A receiving and conveying device for ductile iron pipes, comprising a rotating frame (1), two rotating wheels (2) arranged side by side on the rotating frame (1), and a pipe-turning frame (3) on one side of the rotating frame (1), characterized in that: It also includes a support plate (4) located between two rotating wheels (2), the bottom of the support plate (4) being connected to the rotating frame (1) via a first telescopic rod; a first baffle (5) is provided on one side of the flipping frame (3) to rotatably connect the rotating frame (1), the upper end of the first baffle (5) extends to the top of the rotating wheel (2) and forms a pipe blocking part (501), and a first limiting block (6) is provided on one side of the flipping frame (3) for unidirectionally limiting the first baffle (5).

2. The receiving and conveying device for ductile iron pipes according to claim 1, characterized in that: The lower end of the pipe-flipping frame (3) is connected to a second telescopic rod (7).

3. The receiving and conveying device for ductile iron pipes according to claim 2, characterized in that: Both the first telescopic rod and the second telescopic rod (7) are cylinders.

4. The receiving and feeding device for ductile iron pipes according to claim 1, characterized in that: The support plates (4) on both sides of the first telescopic rod are slidably connected to the rotating frame (1) via the guide rod (8).

5. The receiving and feeding device for ductile iron pipes according to claim 1, characterized in that: The first baffle (5) has a locking block (502) on one side that cooperates with the first limiting block (6).

6. The receiving and feeding device for ductile iron pipes according to claim 1, characterized in that: The rotating frame (1) is connected to a transfer plate (9) at the front end along the conveying direction of the ductile iron pipe. The top height of the transfer plate (9) is the same as the height of the upper surface of the rotating wheel (2). One end of the transfer plate (9) extends to the outside of the rotating wheel (2).

7. The receiving and feeding device for ductile iron pipes according to claim 6, characterized in that: The transfer plate (9) is rotatably connected to a second baffle (10). A second limiting block (11) is fixedly connected to the transfer plate (9) on one side of the second baffle (10). The second limiting block (11) is used to limit the second baffle (10) in one direction.

8. A micro-pipe chamfering machine, characterized in that: The micro jacking pipe chamfering machine includes a receiving device for ductile iron pipes as described in any one of claims 1-7.

9. The micro-tube chamfering machine according to claim 8, characterized in that: It includes a fixed frame (12) and a sliding frame (13). A rotating frame (1) is connected to one side of both the fixed frame (12) and the sliding frame (13). The rotating wheel (2) and the flipping frame (3) are symmetrically arranged on the rotating frames (1) on both sides and are distributed at left and right intervals. A first baffle (5) is connected to the rotating frames (1) on both sides.

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