CN110860668A

CN110860668A - Tube drawing machine for nodular cast iron pipe centrifugal casting equipment

Info

Publication number: CN110860668A
Application number: CN201911201947.8A
Authority: CN
Inventors: 张福新
Original assignee: Spheroidal Graphite Cast-Iron Factory Of Hanshan County Xingda
Current assignee: Spheroidal Graphite Cast-Iron Factory Of Hanshan County Xingda
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-03-06

Abstract

The invention relates to the technical field of casting, and discloses a tube drawing machine for nodular cast iron pipe centrifugal casting equipment, which comprises a workbench, wherein fixed plates are arranged on the left side and the right side of the upper surface of the workbench, guide rods are arranged on the front side and the rear side of each fixed plate, the middle parts of the guide rods are slidably connected with a fixed seat, the middle parts of the fixed plates are rotatably connected with lead screws, the middle parts of the lead screws are in threaded connection with the middle parts of the fixed seats, a hydraulic cylinder is arranged in the middle part of the right side wall of each fixed seat, a piston rod of the hydraulic cylinder is fixedly connected with a baffle plate, the upper end of the baffle plate is connected with the right end of each slide rod, a slide plate is arranged at the left. The pipe drawing machine is suitable for the centrifugal casting equipment for the nodular cast iron pipe, the whole device is reasonable and simple in structure, convenient and fast to operate, stable in structure, low in later maintenance cost and suitable for popularization and use, and the use difficulty of operators is reduced.

Description

Tube drawing machine for nodular cast iron pipe centrifugal casting equipment

Technical Field

The invention relates to the technical field of casting, in particular to a tube drawing machine for nodular cast iron pipe centrifugal casting equipment.

Background

The nodular cast iron pipe is a pipe which is formed by adding a nodulizer into cast molten iron above No. 18 and then centrifugally casting the molten iron at a high speed by a centrifugal nodular cast iron machine, and is called a nodular cast iron pipe, a nodular cast iron pipe and the like for short. The material is mainly used for conveying tap water and is an ideal selective material for tap water pipelines.

The ductile cast iron pipe is applied to an underground water pipe, a rotary mold is used for centrifugal casting in production, and the formed pipe needs to be pulled out of the mold.

Chinese patent (publication number: CN 104550819A) discloses a tube drawing machine for nodular cast iron pipe centrifugal casting equipment, which comprises a frame, a tube drawing device, a winch driving device and a chuck tensioning device, wherein the frame is provided with a guide rail, the tube drawing device and the winch driving device are arranged on the frame, and the chuck tensioning device is connected with the tube drawing device. The chuck tensioning device is used for fixing the nodular cast iron pipe, the pipe drawing device is used for drawing the nodular cast iron pipe, and the winch driving device is used for controlling the operation of the pipe drawing device. The device can effectively perform pipe drawing on the nodular cast iron pipe, and ensures that the cast iron pipe mold, the nodular cast iron pipe and the pipe drawing device are in linear drawing operation during pipe drawing, so that the nodular cast iron pipe is prevented from being twisted during drawing to damage the cast iron pipe mold; the centrifugal tube drawing machine for the ductile cast iron tube can be quickly and effectively started and stopped, the working efficiency is improved, but the whole operation of the device is complex, the use is inconvenient, and the device needs to be improved.

Disclosure of Invention

The invention provides a tube drawing machine for nodular cast iron pipe centrifugal casting equipment, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a tube drawing machine for nodular cast-iron pipe centrifugation pouring equipment, includes the workstation, and the upper surface left and right sides of workstation is equipped with the fixed plate, and both sides are equipped with the guide bar around the fixed plate, the middle part sliding connection fixing base of guide bar, the middle part of fixed plate is rotated and is connected the lead screw, the middle part of the middle part threaded connection fixing base of lead screw, and the right side wall middle part of fixing base is equipped with the pneumatic cylinder, and the piston rod fixed connection baffle of pneumatic cylinder, the right-hand member of slide bar is connected to the upper end of baffle, and the left end of slide bar is equipped with the sliding plate, and both sides are equipped with the groove of stepping down around the sliding plate, and the groove middle part through connection dwang of stepping down, the middle part of dwang is.

As a preferred technical solution of the present invention, support columns are disposed at four corners of a lower surface of the worktable.

As a preferable technical scheme of the invention, the lower end of the supporting column is provided with a cushion block.

As a preferable technical scheme of the invention, a driving motor is arranged on the right side of the lower surface of the workbench, an output shaft of the driving motor is fixedly connected with a first belt wheel, the first belt wheel is connected with a second belt wheel through a belt, and the second belt wheel is fixedly connected with the right end of the screw rod.

As a preferred technical scheme of the invention, the middle part of the upper surface of the fixed seat is provided with a sliding seat, and the middle part of the sliding seat is connected with a sliding rod in a sliding manner.

As a preferred technical scheme of the invention, the right end of the rotating rod is provided with a limiting block.

As a preferable technical scheme of the invention, the left end of the rotating rod is provided with a top block.

As a preferable technical scheme of the invention, the top block is made of rubber.

The invention has the following advantages:

the pipe drawing machine is suitable for the centrifugal casting equipment for the nodular cast iron pipe, the rotation of the two rotating rods is controlled by the extension and contraction of the piston rod of the hydraulic cylinder, so that the clamping and the loosening of the inner wall of the pipeline are realized, and the pipe drawing action is realized by driving the fixed seat to move left and right through the screw rod.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a tube drawing bench for centrifugal casting equipment of ductile cast iron tubes.

Fig. 2 is a front view of a tube drawing bench for the centrifugal casting equipment of ductile iron tubes.

Fig. 3 is a top view of a tube drawing bench for the centrifugal casting equipment of ductile iron tubes.

In the figure: 1. cushion blocks; 2. a support pillar; 3. a work table; 4. a fixing plate; 5. a guide bar; 6. a screw rod; 7. a fixed seat; 8. a baffle plate; 9. a hydraulic cylinder; 10. a slide bar; 11. a sliding seat; 12. a top block; 13. rotating the rod; 14. a support bar; 15. a rotating shaft; 16. a sliding plate; 17. a yielding groove; 18. a limiting block; 19. a drive motor; 20. a first pulley; 21. a belt; 22. a second pulley.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-3, a tube drawing bench for centrifugal casting equipment of ductile cast iron tubes comprises a workbench 3, support columns 2 are arranged at four corners of the lower surface of the workbench 3, cushion blocks 1 are arranged at the lower ends of the support columns 2, the cushion blocks 1 can increase the distance between the device and the ground, thereby leading the device to be more stably placed on the installation ground, the left side and the right side of the upper surface of the worktable 3 are provided with the fixed plates 4, the front side and the rear side of the fixed plates 4 are provided with the guide rods 5, the middle parts of the guide rods 5 are connected with the fixed seats 7 in a sliding way, the middle part of the fixed plate 4 is rotatably connected with a screw rod 6, the middle part of the screw rod 6 is in threaded connection with the middle part of the fixed seat 7, the right side of the lower surface of the workbench 3 is provided with a driving motor 19, an output shaft of the driving motor 19 is fixedly connected with a first belt pulley 20, the first belt pulley 20 is connected with a second belt pulley 22 through a belt 21, and the second belt pulley 22 is fixedly connected with the right end of the screw rod 6.

The middle part of the right side wall of the fixed seat 7 is provided with a hydraulic cylinder 9, a piston rod of the hydraulic cylinder 9 is fixedly connected with a baffle plate 8, the upper end of the baffle plate 8 is connected with the right end of a sliding rod 10, the middle part of the upper surface of the fixed seat 7 is provided with a sliding seat 11, the middle part of the sliding seat 11 is slidably connected with the sliding rod 10, the left end of the sliding rod 10 is provided with a sliding plate 16, the front side and the rear side of the sliding plate 16 are provided with a abdicating groove 17, the middle part of the abdicating groove 17 is connected with a rotating shaft 15 in a penetrating way, the lower end of the rotating shaft 15 is fixedly connected with the left end of a supporting rod 14, the right end of the supporting rod 14 is fixedly connected with the middle part of the left side wall of the fixed seat 7, the right end of the rotating rod 13 is provided with a limiting block 18, the size of the limiting block 18, therefore, the pipeline is clamped through the top block 12, and the pipeline is pulled out.

Example two

The other contents of this embodiment are the same as those of the first embodiment, except that: the top block 12 is made of rubber. The ejector block 12 made of rubber can avoid rigid contact between the ejector block 12 and the inner wall of the pipeline, so that the pipeline is damaged, and meanwhile, the deformation of the rubber can increase the friction force between the left end of the rotating rod 13 and the inner wall of the pipeline, so that the pipeline can be pulled out more stably.

In the implementation process of the invention, the device is placed at the right end of cast iron needing to pull out a pipeline, the hydraulic cylinder 9 is started, the piston rod of the hydraulic cylinder 9 contracts, so that the baffle 8 drives the sliding rod 10 to move towards the left side, so that the distance between the left ends of the two rotating rods 13 is reduced, at the moment, the driving motor 19 is started, the output shaft of the driving motor 19 drives the first belt wheel 20 to rotate, the first belt wheel 20 drives the second belt wheel 22 to rotate through the belt 21, the second belt wheel 22 drives the screw rod 6 to rotate, at the moment, the screw rod 6 is in threaded connection with the fixed seat 7, so that the fixed seat 7 moves towards the left side of the device, so that the left end of the rotating rod 13 is inserted into the pipeline, when the fixed seat 7 moves to the leftmost end, the driving motor 19 is stopped, the hydraulic cylinder 9 is started reversely, the piston rod of the hydraulic cylinder 9 extends out, the two rotating rods 13 rotate, so that the left ends of the rotating rods 13 prop against the inner wall of the pipeline, the inner wall of the pipeline is clamped through the left ends of the rotating rods 13, the driving motor 19 is started reversely at the moment, the driving motor 19 drives the screw rod 6 to rotate through the transmission of the belt 21, the fixing seat 7 moves towards the right side, and the two rotating rods 13 drive the pipeline to move towards the right side at the moment, so that the pipe drawing work is realized; the pipe drawing machine is suitable for a centrifugal casting device for ductile cast iron pipes, the rotation of the two rotating rods 13 is controlled by the extension and contraction of the piston rods of the hydraulic cylinders 9, so that the inner walls of pipelines are clamped and released, and the fixed seat 7 is driven to move left and right by the lead screw 6, so that the pipe drawing action is realized.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A tube drawing machine for nodular cast iron pipe centrifugal casting equipment comprises a workbench (3), wherein fixed plates (4) are arranged on the left side and the right side of the upper surface of the workbench (3), guide rods (5) are arranged on the front side and the rear side of each fixed plate (4), and the middle parts of the guide rods (5) are slidably connected with fixed seats (7), and is characterized in that the middle part of each fixed plate (4) is rotatably connected with a lead screw (6), the middle part of each lead screw (6) is in threaded connection with the middle part of each fixed seat (7), a hydraulic cylinder (9) is arranged in the middle part of the right side wall of each fixed seat (7), a piston rod of each hydraulic cylinder (9) is fixedly connected with a baffle (8), the upper end of each baffle (8) is connected with the right end of a sliding rod (10), a sliding plate (16) is arranged at the left end of each sliding rod (10), relief grooves (, the middle part of the rotating rod (13) is rotatably connected with a rotating shaft (15), the lower end of the rotating shaft (15) is fixedly connected with the left end of a supporting rod (14), and the right end of the supporting rod (14) is fixedly connected with the middle part of the left side wall of the fixed seat (7).

2. The tube drawing bench for the centrifugal casting equipment of ductile cast iron tubes according to claim 1, characterized in that support columns (2) are provided at four corners of the lower surface of the work bench (3).

3. The tube drawing bench for the centrifugal casting equipment of ductile cast iron tubes according to claim 2, characterized in that the lower end of the supporting column (2) is provided with a cushion block (1).

4. The tube drawing bench for the centrifugal casting equipment of the ductile cast iron tubes as claimed in claim 1, characterized in that a driving motor (19) is arranged on the right side of the lower surface of the working platform (3), an output shaft of the driving motor (19) is fixedly connected with a first belt pulley (20), the first belt pulley (20) is connected with a second belt pulley (22) through a belt (21), and the second belt pulley (22) is fixedly connected with the right end of the screw rod (6).

5. The tube drawing bench for the centrifugal casting equipment of the ductile cast iron tubes as claimed in claim 1, characterized in that the middle of the upper surface of the fixed seat (7) is provided with a sliding seat (11), and the middle of the sliding seat (11) is slidably connected with a sliding rod (10).

6. The tube drawing bench for the centrifugal casting equipment of the ductile cast iron tube as claimed in claim 1, wherein the right end of the rotating rod (13) is provided with a limit block (18).

7. The tube drawing bench for the centrifugal casting equipment of ductile iron pipes as claimed in claim 1 or 6, characterized in that the left end of the rotating rod (13) is provided with a top block (12).

8. The tube drawing bench for the centrifugal casting equipment of ductile cast iron tubes as claimed in claim 7, characterized in that said top block (12) is made of rubber.