CN220463112U

CN220463112U - Waste pipe cutting machine

Info

Publication number: CN220463112U
Application number: CN202320532166.2U
Authority: CN
Inventors: 郭安; 勾伟舵; 张磊; 孙春阳
Original assignee: Hebei Juxing Intelligent Equipment Manufacturing Co ltd
Current assignee: Hebei Juxing Intelligent Equipment Manufacturing Co ltd
Priority date: 2023-03-19
Filing date: 2023-03-19
Publication date: 2024-02-09
Anticipated expiration: 2033-03-19

Abstract

The utility model discloses a waste pipe cutting machine applied to the field of cast pipes. The device comprises a storage bracket and a cutting device, wherein the cutting device comprises a waste pipe fixing mechanism, a cutting mechanism and a driving mechanism; the cutting cylinder of the cutting mechanism is hinged with the support of the upper beam of the cutting frame, the lower end of the cutting cylinder is provided with a cutting head, the cutting head is connected with an arc-shaped main cutter, the arc-shaped auxiliary cutter is connected with the cutting cushion block on the lower beam of the cutting frame, and the main cutter and the auxiliary cutter are matched with the cutting waste pipe to form a pipe section. And a positioning wheel is arranged on the lower beam to limit the position of the waste pipe and determine the length of the cut pipe section. The lifting cylinder of the driving mechanism is arranged on the lower beam, the top of the lifting cylinder is connected with a V-shaped wheel, and the end part of a rotating shaft of the V-shaped wheel is provided with a frequency modulation motor. The lower positioning block of the fixing mechanism is fixed on the lower beam, the upper positioning block is connected with the oil cylinder, and the upper positioning block and the lower positioning block are provided with V-shaped grooves which are mutually matched to clamp the waste pipe. The utility model has high efficiency of cutting waste pipe, and the cement lining and the pipe section are automatically separated.

Description

Waste pipe cutting machine

Technical Field

The utility model is applied to the field of centrifugal cast pipes, relates to the cutting-off of waste cast pipes used as a furnace return material, in particular to a waste pipe cutting machine, and is particularly suitable for cutting off small-caliber scrapped cast pipes lined with cement.

Background

In the field of centrifugal cast pipes, cast pipe waste is often used as a furnace return material, and because the length of cast pipe products is long and is generally 6 meters, the waste cast pipes are limited by the height of a workshop, and the waste cast pipes are usually required to be crushed into short sections or small blocks for furnace return. For the ductile cast iron pipe, the ductile cast iron pipe has good plasticity and poor brittleness, can only be crushed flat, is difficult to crush into small blocks, and is usually cut into short sections by various modes for returning to the furnace. In particular, for ductile cast iron pipes lined with inner wall cement, it is also necessary to strip the lining cement. Therefore, a waste pipe cutting machine is developed, the lining cement is stripped by utilizing the deformation of the waste pipe in the cutting process, and the waste pipe is cut into short sections, so that the waste pipe is convenient to return to the furnace.

The bulletin numbers CN2688425Y and CN2772693Y respectively provide a novel cylinder rod cutting machine tool and a novel pipe cutting machine for cutting off the short sections of the finished steel pipes. The publication numbers CN210188657U and CN218135323U disclose an automatic cutting device for steel pipe production and a cutting device for a spiral duct, respectively, in which the steel pipe or spiral duct rotates, and the steel pipe is cut off by a cutting blade or a cutting blade. The publication No. CN217492867U discloses a steel pipe cutting blanking device which is also used for cutting steel pipes. The publication No. CN210280859U discloses a manual hydraulic cast iron pipe extruding and cutting device, which is sleeved on a cast iron pipe, a hydraulic cylinder applies pressure, and the manual rotary extruding and cutting device cuts off the iron pipe, so that the pipe cutting device has a simple structure, is low in pipe cutting efficiency, is suitable for a construction site and is not suitable for a production workshop. CN216780493U discloses a special quick cutting device for cast pipes, which is cut by a cutting disc after clamping the pipe. The pipeline cutting device has low efficiency, or the service life of the blade or the cutting piece is seriously damaged by the lining cement, so that the pipeline cutting device is not suitable for cutting the pipeline with the lining cement, or even if the pipeline is cut, the lining cement is not peeled off, and the subsequent process is still troublesome.

Disclosure of Invention

The utility model solves the technical problems that: a scrap pipe cutter is provided for cutting a cast pipe with shear forces while deforming the cast pipe such that a cement lining is stripped from the cast pipe.

The technical scheme adopted by the utility model is as follows: the waste pipe cutter comprises a storage bracket and a cutting device. The cutting device comprises a waste pipe fixing mechanism, a waste pipe cutting mechanism and a waste pipe driving mechanism which are fixed on the cutting frame. The waste pipe cutting mechanism comprises a cutting oil cylinder, a cutting head, a main cutter, an auxiliary cutter and a cutting cushion block; the cutting oil cylinder is hinged and fixed on the support of the upper beam of the cutting frame, the lower end of the cutting oil cylinder is provided with a cutting head, and a cutting head fastener is connected with the arc-shaped main cutter, so that the cutting oil cylinder is convenient to replace. The main cutter is matched with the arc auxiliary cutters and is used for cutting the waste pipe into pipe sections. The auxiliary cutter fastener is connected with the cutting cushion block, and the cutting cushion block is fixed on the lower beam of the cutting frame. And fixing a welding chute at the lower front part of the cutting cushion block. And a positioning wheel or a positioning block is arranged on the lower beam at the forefront end of the cutting frame and used for limiting the advancing position of the waste pipe and determining the length of the cutting pipe section.

Further, the storage bracket oblique cutting device is characterized in that a rotary blocking and shifting and a blocking and shifting oil cylinder for driving the blocking and shifting to rotate are arranged at the end part of the low point of the storage bracket.

Further, the waste pipe driving mechanism comprises a V-shaped wheel, a lifting oil cylinder and a frequency modulation motor. The lifting oil cylinder is fixedly arranged on the lower beam of the cutting frame, the top of the cylinder rod of the lifting oil cylinder is connected with a rotatable V-shaped wheel, and the lifting oil cylinder can realize the up-and-down movement of the V-shaped wheel. The end part of the V-shaped wheel rotating shaft is provided with a frequency modulation motor, and the frequency modulation motor drives the V-shaped wheel to rotate, so that the waste pipe is driven to longitudinally run.

Further, the waste pipe fixing mechanism comprises an upper positioning block, a lower positioning block and a fixed oil cylinder. The lower positioning block is fixedly arranged on a lower beam of the cutting frame, the upper positioning block is fixedly connected with a cylinder rod of a fixed cylinder, and the fixed cylinder is hinged and fixed on a cylinder support of an upper beam of the cutting frame. A V-shaped wheel is arranged between the lower positioning block and the cutting cushion block, so that the tail end of the waste pipe can smoothly fall into the chute. In order to adapt to different specifications of waste pipes, V-shaped grooves which are mutually matched and clamp the waste pipes are machined on the upper positioning block and the lower positioning block. Guide rods are arranged on the upper positioning block and the cutting head, and are matched with guide sleeves fixed on the middle beam of the cutting frame, so that the oblique stress of the oil cylinder is avoided.

The beneficial effects of the utility model are as follows: the utility model has high efficiency of cutting waste pipes and does not need to clean cement lining. The flattened cut pipe section can be conveniently returned to the furnace for melting, and is not limited by the diameter of a workshop or an intermediate frequency furnace.

Drawings

FIG. 1 is a schematic front view of the structure of embodiment 1;

FIG. 2 is a schematic top view of FIG. 1;

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 1;

FIG. 5 is a schematic view in section B-B of FIG. 1;

FIG. 6 is a schematic view of section C-C of FIG. 1;

FIG. 7 is a schematic top view of example 2;

wherein: 1-cutting frame, 2-fixed cylinder, 3-cutting cylinder, 4-cutting head, 5-main cutter, 6-auxiliary cutter, 7-cutting cushion block, 8-positioning wheel, 9-chute, 10-upper positioning block, 11-lower positioning block, 12-lifting cylinder, 13-V-shaped wheel, 14-waste pipe, 15-preparation bracket, 16-upper beam, 17-middle beam, 18-lower beam, 19-shift, 20-shift cylinder, 21-storage bracket, 22-guide rod, 23-guide sleeve and 24-frequency modulation motor.

Description of the embodiments

For convenience of description, the upper and lower directions refer to the relative positions of the use states of the utility model, the front direction is the left direction of fig. 1, namely, the moving direction of the waste pipe when the pipe is cut, and the transverse direction and the longitudinal direction are relative to the central line of the waste pipe.

Example 1

The construction of the scrap pipe cutter of this embodiment is shown in FIGS. 1-5, and includes a storage rack 21, a preparation rack 15, and a cutting device. The storage rack 21 is a waste pipe rack inclined to the preparation rack 15, and the waste pipe 14 is placed on the storage rack and can roll transversely to the preparation rack 15 by means of the gravity of the waste pipe itself. A rotatable shift 19 is designed at the low point end of the storage rack 21, i.e. at the junction of the storage rack and the preparation rack 15, and the rotation of the shift 19 is driven by a shift cylinder 20. As shown in fig. 2, the cylinder rod of the shift cylinder extends out, the shift rod of the shift 19 stops the waste pipe 14 from rolling, and when the cylinder rod of the shift cylinder retracts, the shift rod of the shift 19 rotates down, and simultaneously the shift rod rotates up to shift the waste pipe to transversely roll and enter the V-shaped wheel 13 of the preparation station. Then the cylinder rod stretches out again, the baffle rod of the baffle plate 19 is lifted up, and the rolling of the next waste pipe is blocked, so that the pipe is fed one by one.

The V-shaped wheel 13 is fixedly arranged on the preparation support 15, the V-shaped wheel 13 can rotate, the end part of the rotating shaft is provided with the frequency modulation motor 24, and the waste pipe on the V-shaped wheel can be longitudinally moved to the cutting device.

The cutting device comprises a cutting frame 1, a waste pipe fixing mechanism fixed on the cutting frame 1, a waste pipe cutting mechanism and a waste pipe driving mechanism. The upper beam 16, the middle beam 17 and the lower beam 18 are welded on the truncated frame 1. The waste pipe driving mechanism comprises a V-shaped wheel 13, a lifting oil cylinder 12, a frequency modulation motor 24 and the like, as shown in figure 5. The lifting cylinder 12 is fixedly arranged on the lower beam 18, the top of a cylinder rod of the lifting cylinder is fixedly connected with the rotatable V-shaped wheel 13, and the end part of the rotating shaft of the V-shaped wheel 13 is provided with a frequency modulation motor 24. The lifting oil cylinder 12 can realize the up-and-down movement of the waste pipe, the frequency modulation motor 24 can drive the V-shaped wheel 13 to rotate, and the waste pipe 14 can realize the longitudinal movement to the cutting station.

The waste pipe fixing mechanism comprises an upper positioning block 10, a lower positioning block 11 and a fixed oil cylinder 2, as shown in figure 4. The lower positioning block 11 is fixedly arranged on the lower beam 18, the upper positioning block 10 is fixedly connected with a cylinder rod of the fixed oil cylinder 2, the upper positioning block and the lower positioning block are respectively provided with a corresponding V-shaped groove, and the waste pipe is clamped and fixed by utilizing the mutually matched V-shaped grooves. The fixed cylinder 2 is hinged with a cylinder support, and the cylinder support is fixed on the upper beam 16. The upper positioning block 10 is fixedly provided with a vertical guide rod 22, the guide rod 22 is matched with a guide sleeve 23 fixed on the middle beam 17, the cylinder rod stress of the fixed cylinder 2 is ensured to be in a straight line, and the problem that the sealing ring is damaged by bending stress of the cylinder rod to leak oil is avoided.

The waste pipe cutting mechanism is similar to the waste pipe fixing mechanism, and comprises a cutting cylinder 3, a cutting head 4, a main cutter 5, an auxiliary cutter 6, a cutting cushion block 7 and the like, wherein the cutting cylinder 3 is hinged with an upper cylinder support seat fixed on an upper beam like the fixed cylinder 2, the cutting head 4 and the main cutter 5 replace an upper positioning block 10 of the waste pipe fixing mechanism, the cutting head 4 is fixedly connected with a cylinder rod of the cutting cylinder 3, and a guide rod 22 at the upper part of the guide rod is matched with a guide sleeve 23 fixed on a middle beam 17, so that the cutting cylinder 3 is ensured to be in good working conditions. The cutting head 4 is connected with the main cutter 5 by a fastener, as shown in figure 3, so that the main cutter 5 can be replaced conveniently. The auxiliary cutter 6 and the cutting cushion block 7 replace the lower positioning block 11 of the waste pipe fixing mechanism, the cutting cushion block 7 is fixedly arranged on the lower beam 18, the auxiliary cutter 6 is connected with the cutting cushion block 7 through fasteners, and the auxiliary cutter 6 can be replaced conveniently. The main cutter 5 and the auxiliary cutter 6 are arc-shaped and are matched with each other to cut the waste pipe. And a chute 9 is fixedly welded at the lower front part of the cutting cushion block 7, and the cut waste pipe section can slide down the chute 9 into a hopper.

Because the external diameter of the cast tube socket is larger than the external diameter of the cast tube body, when the waste tube longitudinally moves from the preparation support to the driving mechanism of the cutting device, the lifting cylinder 12 of the driving mechanism is lifted after being gradually lowered to receive the tube body of the waste tube. In order to obtain a proper size of the returned material, a positioning wheel 8 or a positioning block is arranged on a lower beam 18 at the front end of the cutting station, namely, on the lower beam at the forefront end of the cutting frame 1, and the distance between the positioning wheel 8 or the positioning block and the cutter is the length of the cut pipe section. The positioning wheel 8 or the positioning block fastener is connected, and the length of the cut pipe section can be adjusted.

In order to ensure that the cut tail end of the waste pipe smoothly falls into the chute 9, a V-shaped wheel is required to be arranged between the waste pipe fixing mechanism and the waste pipe cutting mechanism, namely between the lower positioning block 11 and the cutting cushion block 7, as shown in figure 1.

When the embodiment is used, cast tube waste rolls from the storage bracket into the preparation bracket and then runs to the cutting device. After the positions of the positioning wheels or the positioning blocks are adjusted, the waste pipe fixing mechanism clamps the waste pipe, and the waste pipe cutting mechanism cuts the waste pipe into pipe sections. Because the cast tube is hollow structure, when pressing from both sides tight useless pipe, useless pipe produces a small amount of flattening deformation, causes useless pipe flattening's the deformation by a wide margin when the cutter cuts for lining cement and useless pipe peel off. The stripped cement pieces fall into the hopper through the chute together with the cut-off sections. Before the waste pipe is put into the furnace, the waste pipe is absorbed into the furnace by using an electromagnetic chuck, and the cement blocks left in the hopper are treated as solid garbage.

Example 2

To reduce the floor space of the plant, this embodiment saves the preparation rack 15, as shown in fig. 7. The storage bracket 21 is directly obliquely cut into a device, a rotatable blocking and shifting device 19 and a blocking and shifting oil cylinder 20 for driving the blocking and shifting rotation are arranged at the end part of the low point of the storage bracket, namely the junction with the storage bracket, and waste pipes can directly enter the cut into the device from the storage bracket 21. Compared with the embodiment 1, the floor space is saved, the raw materials or parts such as steel, a motor, a V-shaped wheel and the like are also saved, the control is relatively simple, and the lifting oil cylinder of the cutting device does not need to be lifted and dropped in sequence to adapt to a cast tube socket. However, the layout of example 1 is actually adopted, since it is retrofitted with already abandoned equipment, and the actual situation of the shop layout.

In industrial mass production, the rejection rate of cast pipes is not high, and the waste pipes can be placed on a storage bracket to wait for centralized treatment. The utility model is operated manually at present, does not realize automation, cuts the waste pipe on the storage bracket for three hours manually, cuts the waste pipe efficiently, and does not need to specially clean lining cement. The flattened cut pipe section can be conveniently returned to the furnace for melting, and is not limited by the diameter of a workshop or an intermediate frequency furnace.

Claims

1. A waste pipe cutting machine which is characterized in that: comprises a storage bracket (21) and a cutting device; the cutting device comprises a waste pipe fixing mechanism, a waste pipe cutting mechanism and a waste pipe driving mechanism which are fixed on the cutting frame; the waste pipe cutting mechanism comprises a cutting oil cylinder (3), a cutting head (4), a main cutter (5), an auxiliary cutter (6) and a cutting cushion block (7); the cutting cylinder (3) is fixed on an upper beam of the cutting frame, the cutting head (4) is arranged at the lower end of the cutting cylinder (3), a fastening piece of the cutting head (4) is connected with the arc-shaped main cutter (5), the main cutter (5) is matched with the arc-shaped auxiliary cutter (6), a fastening piece of the auxiliary cutter (6) is connected with the cutting cushion block (7), and the cutting cushion block (7) is fixed on a lower beam of the cutting frame.

2. A scrap pipe cutter in accordance with claim 1 wherein: the oblique cutting device of the storage support (21) is characterized in that a rotatable blocking dial (19) and a blocking dial oil cylinder (20) for driving the blocking dial (19) to rotate are arranged at the end part of the low point of the storage support (21).

3. A scrap pipe cutter in accordance with claim 1 wherein: the waste pipe driving mechanism comprises a V-shaped wheel (13), a lifting oil cylinder (12) and a frequency modulation motor (24); the lifting oil cylinder (12) is fixedly arranged on a lower beam of the cutting frame, the top of a cylinder rod of the lifting oil cylinder (12) is connected with a rotatable V-shaped wheel (13), and a frequency modulation motor (24) is arranged at the end part of a rotating shaft of the V-shaped wheel (13).

4. A scrap pipe cutter in accordance with claim 1 wherein: the waste pipe fixing mechanism comprises an upper positioning block (10), a lower positioning block (11) and a fixed oil cylinder (2); the lower positioning block (11) is fixedly arranged on a lower beam of the cutting frame, the upper positioning block (10) is fixedly connected with a cylinder rod of the fixed cylinder (2), and the fixed cylinder (2) is hinged and fixed on a cylinder support of the upper beam of the cutting frame.

5. A scrap pipe cutter in accordance with claim 4 wherein: a V-shaped wheel (13) is arranged between the lower positioning block (11) and the cutting cushion block (7).

6. A scrap pipe cutter in accordance with claim 4 wherein: v-shaped grooves which are mutually matched and clamp the waste pipes are formed in the upper positioning block (10) and the lower positioning block (11).

7. A scrap pipe cutter in accordance with claim 4 wherein: guide rods (22) are arranged on the upper positioning block (10) and the cutting head (4), and the guide rods (22) are matched with guide sleeves (23) fixed on the middle beam of the cutting frame.

8. A scrap pipe cutter in accordance with claim 1 wherein: and a welding chute (9) is fixed at the lower front part of the cutting cushion block (7).

9. A scrap pipe cutter in accordance with claim 1 wherein: and a positioning wheel (8) or a positioning block is arranged on the lower beam at the forefront end of the cutting frame.