Tube drawing device of cast tube centrifugal machine

Abstract

The utility model relates to the technical field of pipeline machining, and particularly discloses a pipe drawing device of a cast pipe centrifugal machine, which comprises a bottom plate and a slide rail, the slide rail is slidably connected with a moving trolley paved at the upper end of the bottom plate, a push rod clamp is arranged on one side of the slide rail, two track plates are arranged above the push rod clamp, and movable plates are arranged at the upper ends of the track plates. The movable plate is in sliding connection with the two track plates, adjusting mechanisms used for pushing the movable plate to move horizontally are arranged in the track plates, adjusting plates are arranged at the two ends of the track plates, two side supporting plates are arranged below the adjusting plates, and limiting wheels are arranged at the lower ends of the side supporting plates. The two limiting wheels support the pipe fitting from the position below the pipe fitting, the adjusting mechanism pushes the movable plate to move horizontally, the pipe fitting can be sent out to the two sides of the pipe drawing device, the sliding mechanism can open the two limiting wheels through the side supporting plates, the pipe fitting falls off from the position between the two side supporting plates, discharging is conducted, pipe drawing, material receiving and discharging are integrated, the efficiency of pipe drawing operation is effectively improved, and the labor intensity of workers is relieved. Manpower and material resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline processing, in particular to a pipe pulling device for a centrifugal pipe casting machine. Background Art

[0002] Centrifugal casting is a technology and method in which liquid metal is injected into a mold of a high-speed rotating centrifuge, and the metal liquid makes a centrifugal motion to fill the mold to form a casting. After the pipe casting is formed, it needs to be pulled out of the centrifuge and placed on a pipe rack for cooling. This process is generally completed by a pipe pulling device.

[0003] A relatively common pipe pulling device for a centrifuge mainly includes a pipe pulling cart, an oil cylinder, a pipe pulling arm, a connecting rod and a pipe pulling clamp. The pipe pulling arm and the oil cylinder are arranged on the pipe pulling cart, the pipe pulling clamp is fixed on the pipe pulling arm, and the oil cylinder, the connecting rod and the pipe pulling clamp are connected in sequence. The pipe pulling clamp is fixed on the pipe pulling cart through the pipe pulling arm. When the piston of the oil cylinder pushes forward, the connecting rod drives the clamp block of the pipe pulling clamp to retract. The pipe pulling cart drives the pipe pulling device into the inner cavity of the pipe casting. When the piston of the oil cylinder retracts, the connecting rod drives the clamp block of the pipe pulling clamp to expand outwards and tighten the inner cavity of the pipe casting. Then the pipe pulling cart retreats to pull the pipe casting out of the pipe mold. The pulled-out pipe will be placed on a support for cooling, and finally transferred. When the pipe fitting is transferred from the support, another lifting tool needs to be used for hoisting. The hoisting method of the lifting tool is not conducive to use in a small workshop, and it will also increase the operation cost, and the operation process is cumbersome. Summary of the Utility Model

[0004] In view of the above problems, the utility model provides a pipe pulling device for a centrifugal pipe casting machine to solve the disadvantages that when the existing pipe pulling device transfers the pipe fitting from the support, another lifting tool needs to be used for hoisting, and the operation process is cumbersome.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions: A pipe pulling device for a centrifugal pipe casting machine includes a bottom plate and a moving trolley. The moving trolley is slidably connected to a slide rail paved on the upper end of the bottom plate. A push rod clamp is arranged on one side of the moving trolley.

[0006] Above the push rod clamp, there are two track plates. Both ends of the track plates are fixedly connected to support frames arranged on both sides of the bottom plate. An activity plate is arranged on the upper end of the track plates. The activity plate is slidably connected to the two track plates. An adjusting mechanism for pushing the activity plate to move horizontally is arranged inside the track plates.

[0007] Adjusting plates are arranged at both ends of the track plates. Below the adjusting plates, there are two side support plates. The upper ends of the side support plates are slidably connected to the adjusting plates. Limiting wheels for limiting and supporting the pulled-out pipe body are arranged at the lower ends of the side support plates. A sliding mechanism for adjusting the distance between the two side support plates is arranged inside the adjusting plates.

[0008] A further improvement lies in that: the track plate and the bottom plate are vertically staggered, the movable plate is vertically staggered with the two track plates, and the adjusting plate is placed at both ends of the movable plate and forms a vertical angle with the movable plate.

[0009] A further improvement lies in that: the adjusting mechanism includes a screw rod arranged between the two track plates. The screw rod is in threaded cooperation with a fitting block arranged at the lower end of the movable plate. The upper end of the fitting block is fixedly connected to the movable plate. Both ends of the screw rod are rotatably connected to the support frame. A second motor is installed on the outside of one of the support frames, and the output end of the second motor is fixedly connected to one end of the support frame.

[0010] A further improvement lies in that: two sliders are arranged at the lower end of the movable plate. The upper ends of the sliders are fixedly connected to the movable plate. The lower ends of the sliders penetrate into the sliding grooves opened at the upper ends of the track plates, and the sliders are slidably connected to the sliding grooves.

[0011] A further improvement lies in that: the sliders are T-shaped sliders, and the sliding grooves are T-shaped sliding grooves adapted to the sliders.

[0012] A further improvement lies in that: the sliding mechanism includes a sliding groove opened at the lower end of the adjusting plate. The upper end of the side support plate penetrates into the sliding groove and is slidably connected to the sliding groove. A double-headed screw rod is arranged in the sliding groove. One end of the double-headed screw rod is fixedly connected to the output end of a first motor arranged outside the adjusting plate. The sliding groove vertically penetrates the two side support plates. Two nut seats are sleeved outside the sliding groove. The two nut seats are respectively fixedly connected to the two side support plates. The two nut seats are respectively in threaded cooperation with the left-handed and right-handed threads outside the sliding groove.

[0013] The beneficial effects of the present utility model are as follows: two limiting wheels support the pipe fitting from below. The adjusting mechanism pushes the movable plate to move horizontally, and the pipe fitting can be sent out to both sides of the pipe pulling device. The sliding mechanism can open the two limiting wheels through the side support plates, so that the pipe fitting falls from between the two side support plates for discharging. It integrates pipe pulling, material receiving and discharging, effectively improves the efficiency of the pipe pulling operation, and saves manpower and material resources. Description of the Drawings

[0014] Figure 1 is the structural diagram of the bottom plate in the present utility model.

[0015] Figure 2 is the structural diagram of the track plate in the present utility model.

[0016] Figure 3 is the structural diagram of the movable plate in the present utility model.

[0017] Figure 4 is the structural diagram of the adjusting plate in the present utility model.

[0018] Wherein: 1. Base plate; 2. Mobile trolley; 3. Slide rail; 4. Push rod clamp; 5. Track plate; 6. Support frame; 7. Screw; 8. Side support plate; 9. Limiting wheel; 10. Movable plate; 11. Fitting block; 12. Adjusting plate; 13. Slide block; 14. Slide groove; 15. Double-headed screw; 16. First motor; 17. Limiting rod; 18. Second motor. Specific embodiments

[0019] To deepen the understanding of the present utility model, the following will further elaborate on the present utility model in combination with embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation to the protection scope of the present utility model.

[0020] According to Figure 1 、 2 As shown in Figures 1, 2, 3, and 4, in this embodiment, a pipe extraction device for a pipe casting centrifuge is proposed, which includes a base plate 1 and a mobile trolley 2. The mobile trolley 2 is slidably connected to a slide rail 3 paved on the upper end of the base plate 1. A push rod clamp 4 is provided on one side of the mobile trolley 2. The push rod clamp 4 penetrates into the pipe in the centrifuge and fixes the pipe from the inner side of the pipe. The centrifuge drives the pipe to rotate, and the mobile trolley 2 slides along the slide rail 3 and drives the push rod clamp 4 to rotate in the reverse direction to extract the formed pipe from the centrifuge. The mobile trolley 2 is a device commonly used in the process of pipe extraction, and will not be elaborated further.

[0021] Above the push rod clamp 4, there are two track plates 5. The two ends of the track plates 5 are fixedly connected to support frames 6 provided on both sides of the base plate 1. The upper end of the track plates 5 is provided with a movable plate 10. The movable plate 10 is slidably connected to the two track plates 5. An adjusting mechanism for horizontally pushing the movable plate 10 is provided inside the track plates 5;

[0022] Adjusting plates 12 are provided at both ends of the track plates 5. Below the adjusting plates 12, there are two side support plates 8. The upper ends of the side support plates 8 are slidably connected to the adjusting plates 12. Limiting wheels 9 for limiting and supporting the extracted pipe body are provided at the lower ends of the side support plates 8. A sliding mechanism for adjusting the distance between the two side support plates 8 is provided inside the adjusting plates 12. After the pipe fitting is extracted, it will fall between the two side support plates 8. At this time, the two limiting wheels 9 will be located below the pipe fitting. After releasing the fixation of the pipe fitting by the push rod clamp 4, the pipe fitting will fall on the two limiting wheels 9, and the limiting wheels 9 support the pipe fitting.

[0023] The adjusting mechanism can horizontally push the movable plate 10. By moving the movable plate 10, the pipe fitting can be sent above the material racks on both sides of the pipe extraction device. The sliding mechanism can adjust the distance between the two limiting wheels 9 through the side support plates 8. When the two limiting wheels 9 open, the pipe fitting can fall between the two side support plates 8 for discharging. This pipe extraction device integrates pipe extraction, material receiving, and discharging, which can effectively improve the operation efficiency and save manpower and material resources.

[0024] It should be noted that the track plate 5 is vertically staggered with the bottom plate 1, the movable plate 10 is vertically staggered with the two track plates 5, and the adjusting plates 12 are placed at both ends of the movable plate 10 and form a vertical angle with the movable plate 10. The advantage of this setting is that the movable plate 10 can horizontally move the two adjusting plates 12 above the position after the pipe fitting is pulled out. When the two limiting wheels 9 below the adjusting plates 12 support the pulled-out pipe fitting, the movable plate 10 will move again to send the pipe fitting to both sides of the pipe pulling device for discharging.

[0025] The adjusting mechanism is used to control the horizontal movement of the movable plate 10 at the upper end of the track plate 5. The adjusting mechanism includes a screw rod 7 arranged between the two track plates 5. The screw rod 7 is in threaded cooperation with a mating block 11 arranged at the lower end of the movable plate 10. The upper end of the mating block 11 is fixedly connected to the movable plate 10. Both ends of the screw rod 7 are rotatably connected to the support frame 6. A second motor 18 is installed outside one of the support frames 6, and the output end of the second motor 18 is fixedly connected to one end of the support frame 6. The adjusting mechanism is a common screw drive mechanism. Among them, the second motor 18 plays a role in controlling the rotation of the screw rod 7. When the screw rod 7 rotates, the mating block 11 sleeved outside the screw rod 7 will move along the rod body of the screw rod 7. When the screw rod 7 moves, the movable plate 10 will also slide synchronously at the upper end of the track plate 5.

[0026] To improve the stability of the movable plate 10 when sliding at the upper end of the track plate 5, two sliders 13 are arranged at the lower end of the movable plate 10. The upper ends of the sliders 13 are fixedly connected to the movable plate 10. The lower ends of the sliders 13 penetrate into the sliding grooves opened at the upper end of the track plate 5, and the sliders 13 are slidably connected to the sliding grooves. Through the cooperation with the sliders 13, the sliding grooves can guide the movable plate 10 from both ends of the movable plate 10.

[0027] To prevent the slider 13 from disengaging from the sliding groove when sliding on the sliding groove, the slider 13 is a T-shaped slider, and the sliding groove is a T-shaped sliding groove adapted to the slider 13. The T-shaped sliding groove can limit the T-shaped slider through the cooperation with the T-shaped slider when the T-shaped slider slides, which can not only prevent the slider 13 from disengaging from the sliding groove, but also further improve the stability of the slider 13 when sliding in the sliding groove.

[0028] The sliding mechanism can drop the pipe placed on the two limiting wheels 9 by spreading the two side support plates 8. The sliding mechanism includes a sliding groove 14 opened at the lower end of the adjusting plate 12. The upper ends of the side support plates 8 penetrate into the sliding groove 14 and are slidably connected to the sliding groove 14. A double-headed screw rod 15 is arranged in the sliding groove 14. One end of the double-headed screw rod 15 is fixedly connected to the output end of a first motor 16 arranged outside the adjusting plate 12. The sliding groove 14 vertically penetrates the two side support plates 8. Two nut seats are sleeved outside the sliding groove 14, and the two nut seats are respectively fixedly connected to the two side support plates 8. The two nut seats are respectively in threaded cooperation with the left and right threads outside the sliding groove 14.

[0029] On the outer side of the sliding groove 14, there are two sets of threads with opposite directions. The two sets of threads are demarcated by the middle position of the sliding groove 14. When the first motor 16 drives the double-headed screw 15 to rotate, the double-headed screw 15 will drive the two side support plates 8 to move along its rod body through the cooperation with the nut seat. Due to the different helix directions of the threads on the outer side of the sliding groove 14, the two side support plates 8 will move in opposite directions when they move, so as to realize the material receiving and discharging work of the two limiting wheels 9.

[0030] To improve the stability of the side support plate 8 when sliding in the sliding groove 14, a limiting rod 17 is arranged in the sliding groove 14. Both ends of the limiting rod 17 are fixedly connected to the groove wall of the sliding groove 14. The limiting rod 17 vertically penetrates the two side support plates 8, and the limiting rod 17 is slidably connected to the side support plate 8. Through the cooperation with the side support plate 8, the limiting rod 17 can limit the moving path of the side support plate 8, so that the side support plate 8 can slide horizontally along the sliding groove 14.

[0031] Different from the existing pipe pulling device, after the pipe fitting is pulled out, it will fall between the two side support plates 8. The two limiting wheels 9 support it from below the pipe fitting. The adjusting mechanism pushes the movable plate 10 to move horizontally, and the pipe fitting can be sent out to both sides of the pipe pulling device. The sliding mechanism can adjust the distance between the two limiting wheels 9 through the side support plate 8. When the two limiting wheels 9 open, the pipe fitting can fall between the two side support plates 8 for discharging. This pipe pulling device integrates pipe pulling, material receiving and discharging, effectively improving the efficiency of pipe pulling operation and saving manpower and material resources.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe pulling device for a pipe casting centrifuge, comprising a bottom plate (1) and a moving trolley (2), wherein the moving trolley (2) is slidably connected to a slide rail (3) paved on the upper end of the bottom plate (1), and a push rod clamp (4) is provided on one side of the moving trolley (2), characterized in that: Two track plates (5) are arranged above the push rod clamp (4), the two ends of the track plates (5) are fixedly connected to support frames (6) arranged on both sides of the bottom plate (1), a movable plate (10) is arranged at the upper end of the track plate (5), the movable plate (10) is slidably connected to the two track plates (5), and an adjustment mechanism for pushing the movable plate (10) to move horizontally is arranged inside the track plate (5); Adjustment plates (12) are provided at both ends of the track plate (5), two side support plates (8) are provided below the adjustment plate (12), the upper ends of the side support plates (8) are slidably connected to the adjustment plates (12), the lower ends of the side support plates (8) are provided with limiting wheels (9) for limiting and supporting the extraction tube body, and a sliding mechanism for adjusting the distance between the two side support plates (8) is provided inside the adjustment plate (12).

2. A pipe pulling device for a cast pipe centrifuge according to claim 1, characterized in that: The track plate (5) is vertically staggered with the bottom plate (1), the movable plate (10) is vertically staggered with the two track plates (5), and the adjustment plate (12) is placed at both ends of the movable plate (10) and forms a vertical angle with the movable plate (10).

3. The pipe pulling device for a pipe casting centrifuge according to claim 1, characterized in that: The adjustment mechanism comprises a screw rod (7) arranged between two track plates (5), the screw rod (7) being threadedly matched with a matching block (11) arranged at the lower end of the movable plate (10), the upper end of the matching block (11) being fixedly connected to the movable plate (10), the two ends of the screw rod (7) being rotatably connected to a support frame (6), a second motor (18) being installed on the outer side of one of the support frames (6), and the output end of the second motor (18) being fixedly connected to one end of the support frame (6).

4. A pipe pulling device for a pipe casting centrifuge according to claim 3, characterized in that: Two sliders (13) are provided at the lower end of the movable plate (10), the upper ends of the sliders (13) are fixedly connected to the movable plate (10), the lower ends of the sliders (13) are inserted into the slide grooves provided at the upper end of the track plate (5), and the sliders (13) are slidably connected to the slide grooves.

5. A pipe pulling device for a pipe casting centrifuge according to claim 4, characterized in that: The slider (13) is a T-shaped slider, and the slide groove is a T-shaped slide groove matched with the slider (13).

6. The pipe pulling device for a pipe casting centrifuge according to claim 1, characterized in that: The sliding mechanism comprises a slide groove (14) provided at the lower end of the adjusting plate (12); the upper end of the side support plate (8) is inserted into the slide groove (14) and is slidably connected with the slide groove (14); a double-headed screw (15) is provided in the slide groove (14); one end of the double-headed screw (15) is fixedly connected to the output end of a first motor (16) provided on the outer side of the adjusting plate (12); the slide groove (14) vertically penetrates the two side support plates (8); two nut seats are sleeved on the outer side of the slide groove (14); the two nut seats are respectively fixedly connected with the two side support plates (8); the two nut seats are respectively matched with the positive and negative threads on the outer side of the slide groove (14).

7. The pipe pulling device for a pipe casting centrifuge according to claim 6, characterized in that: A limiting rod (17) is provided in the slide groove (14), and both ends of the limiting rod (17) are fixedly connected to the groove wall of the slide groove (14). The limiting rod (17) vertically penetrates the two side support plates (8), and the limiting rod (17) is slidably connected to the side support plates (8).

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