CN210755498U

CN210755498U - Cast iron pipe cutting machine

Info

Publication number: CN210755498U
Application number: CN201921657653.1U
Authority: CN
Inventors: 梅亚飞; 石凯; 梅永兵; 梅朋; 陈赟; 梅和奎
Original assignee: Hangzhou Yafei Machinery Manufacturing Co Ltd
Current assignee: Hangzhou Yafei Machinery Manufacturing Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-16
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to the technical field of cutting equipment, in particular to a cast iron pipe cutting machine, which comprises a machine base, a workbench, a vertical frame and a cutting mechanism; the top surface of the workbench is provided with a bearing component of the cast iron pipe, a plurality of rolling shafts are arranged between the bottom surface of the workbench and the machine base, the axes of the rolling shafts are vertical to the axis of the cast iron pipe, and a guide component and a locking component are also arranged between the machine base and the workbench; the cutting mechanism comprises a vertical frame, a swing frame, a main shaft, a cutting blade, a main shaft driving assembly and a handle; the vertical frame is fixed on the top surface of the base, the swing frame is arranged on the vertical frame in a swinging mode through a pin shaft, the main shaft is arranged at one end, close to the workbench, of the swing frame through a bearing, the cutting blade is fixed on the main shaft, the main shaft and the axis of the cutting blade are parallel to the axis of the cast iron pipe, the driving assembly is arranged on the swing frame and drives the main shaft to rotate, and the handle is fixed on the swing frame and used for pulling the swing frame to swing around the pin shaft.

Description

Cast iron pipe cutting machine

Technical Field

The utility model belongs to the technical field of the cutting equipment technique and specifically relates to a cast iron pipe cutting machine.

Background

Cast iron pipes are cast from cast iron and are relatively low in cost, low in labor intensity and easy to manufacture. It is widely used for water supply, water drainage and gas transmission pipelines. After the cast iron pipe is cast, the cast iron pipe needs to be cut into a certain length so as to facilitate subsequent pipe processing (generally, the cast iron pipe is cut after a certain margin is left on the basis of the length of the pipe). At present, the continuous cutting of the cast iron pipe is generally carried out on a large-scale cutting machine, although the cutting machine can realize rapid cutting, the working efficiency is difficult to be brought into full play due to the limitation of the speed of manual feeding, the large-scale cutting machine is expensive, the production cost of production enterprises is increased, and a pipe cutting machine with low price and convenient operation is required to be designed at present so as to meet the requirements of the production enterprises.

Disclosure of Invention

The utility model aims at overcoming not enough among the above-mentioned background art, provide a cast iron pipe cutting machine, can accomplish the cutting to the cast iron pipe, have simple structure moreover, convenient operation's technical characterstic.

The technical purpose of the utility model is realized like this:

a pipe cutting machine for cast iron pipes comprises a horizontally arranged base, a workbench arranged on the top surface of the base and used for supporting the cast iron pipes, a vertical frame fixed on the base and a cutting mechanism arranged on the vertical frame;

the top surface of the workbench is provided with a bearing component of the cast iron pipe, a plurality of rolling shafts are arranged between the bottom surface of the workbench and the base, the axes of the rolling shafts are vertical to the axis of the cast iron pipe, so that the workbench can move along the axis direction of the cast iron pipe under the bearing of the rolling shafts, and a guide component and a locking component are also arranged between the base and the workbench;

the cutting mechanism comprises a vertical frame, a swing frame, a main shaft, a cutting blade, a main shaft driving assembly and a handle; the vertical frame is fixed on the top surface of the base, the swing frame is arranged on the vertical frame in a swinging mode through a pin shaft, the main shaft is arranged at one end, close to the workbench, of the swing frame through a bearing, the cutting blade is fixed on the main shaft, the main shaft and the axis of the cutting blade are parallel to the axis of the cast iron pipe, the driving assembly is arranged on the swing frame and drives the main shaft to rotate, and the handle is fixed on the swing frame and used for pulling the swing frame to swing around the pin shaft.

Furthermore, the bearing assembly comprises two rows of rollers with roller seats, a certain distance is kept between the two rows of rollers, the roller seats are fixed on the workbench, the rollers are arranged at the top of the roller seats, and the axes of the rollers are parallel to the axis of the cast iron pipe.

Furthermore, the guide assembly comprises a guide pin and a guide groove, the guide groove is formed in the workbench and extends parallel to the axis of the cast iron pipe, the guide pin is vertically fixed on the machine base, and the upper end of the guide pin is inserted into the guide groove and is in clearance fit with the guide groove.

Furthermore, the locking assembly comprises a fixed seat, an adjusting screw rod and a fixing nut, the fixed seat is fixed on the base, the fixing nut is fixed at the end of the workbench, the adjusting screw rod is installed in a screw hole of the fixed seat and matched with the fixing nut, and the adjusting screw rod is arranged in parallel with the axis of the cast iron pipe.

Further, the spindle driving assembly comprises a motor, a driving pulley, a driven pulley and a belt; the motor is fixed on the swing frame, the driving belt pulley is fixed on an output shaft of the motor, the driven belt pulley is arranged on the main shaft, and the belt is wound on the driving belt pulley and the driven belt pulley.

Furthermore, the driving belt pulley, the driven belt pulley and the belt are covered by a belt pulley protective cover, and the belt pulley protective cover is fixed on the swing frame.

Furthermore, the two sides of the cutting blade are respectively clamped by a cutting blade check ring and a cutting blade pressing ring, the cutting blade check ring is fixed on the main shaft, and the cutting blade pressing ring is tightly pressed on the cutting blade through a nut.

Furthermore, the cutting blade is provided with a semi-surrounding cutting blade protection cover, and the cutting blade protection cover is fixed on the swing frame.

The utility model has the advantages that: the utility model discloses a handle operation cutting piece cuts cast iron pipe, and overall structure is simple, and the cost is lower, convenient to use.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a left side view structure diagram of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings.

As shown in fig. 1 and 2, a pipe cutting machine for cast iron pipes includes a horizontally disposed machine base 1, a table 2 disposed on a top surface of the machine base 1 for supporting a cast iron pipe 23, a stand 15 fixed to the machine base 1, and a cutting mechanism mounted on the stand 15.

The top surface of the workbench 2 is provided with a bearing component of the cast iron pipe 23, a plurality of rollers 5 are arranged between the bottom surface of the workbench 2 and the base 1, and the axes of the rollers 5 are vertical to the axis of the cast iron pipe 23, so that the workbench 2 can move along the axis direction of the cast iron pipe 23 under the bearing of the rollers 5 when stressed, and a guide component and a locking component are also arranged between the base 1 and the workbench 2.

The bearing component comprises two rows of rollers 9 with roller seats 3, a certain distance is kept between the two rows of rollers 9, the roller seats 3 are fixed on the workbench 2, the rollers 9 are arranged at the top of the roller seats 3, and the axes of the rollers 9 are parallel to the axis of the cast iron pipe 23. The cast iron pipe 23 is placed on the two rows of rollers 9, can rotate in the circumferential direction and is matched with a cutting mechanism for cutting.

The guide assembly comprises a guide pin 4 and a guide groove 8, the guide groove 8 is arranged on the workbench 2 and extends parallel to the axis of the cast iron pipe 23, the guide pin 4 is vertically fixed on the machine base 1, and the upper end of the guide pin 4 is inserted into the guide groove 8 and is in clearance fit with the guide groove 8. When the position of the working platform 2 needs to be adjusted, the working platform 2 can only move in the axial direction of the cast iron pipe 23 under the guidance of the guide pin 4 when the working platform 2 is pushed by force.

The locking assembly comprises a fixed seat 13, an adjusting screw 27 and a fixed nut 14. The fixed seat 13 is fixed on the machine base 1, the fixed nut 14 is fixed at the end part of the worktable 2, the adjusting screw 27 is installed in the screw hole of the fixed seat 13 and is matched with the fixed nut 14, and the adjusting screw 27 is arranged in parallel with the axis of the cast iron pipe 23. When the worktable 2 is adjusted in place, the worktable 2 cannot slide back and forth in the process of cutting the cast iron pipe 23, and the position of the worktable 2 needs to be finely adjusted in a small range before cutting, the adjusting screw 27 can be rotated, and the worktable 2 is pulled to move through the nut 14 when the adjusting screw 27 rotates. Meanwhile, the adjusting screw 27 can also lock the position of the worktable 2, so as to avoid the influence of the reciprocating movement on cutting.

The cutting mechanism comprises a vertical frame 15, a swing frame 19, a main shaft 7, a cutting blade 20, a main shaft 7 driving component and a handle 21. The vertical frame 15 is fixed on the top surface of the machine base 1, the swing frame 19 is swingably mounted on the vertical frame 15 through a pin 22, the main shaft 7 is mounted at one end of the swing frame 19 close to the workbench 2 through a bearing 10, the cutting blade 20 is fixed on the main shaft 7, the axial lines of the main shaft 7 and the cutting blade 20 are parallel to the axial line of the cast iron pipe 23, the driving component is mounted on the swing frame 19 and drives the main shaft 7 to rotate, and the handle 21 is fixed on the swing frame 19 and used for pulling the swing frame 19 to swing around the pin 22.

The main shaft 7 driving component comprises a motor 17, a driving belt pulley 16, a driven belt pulley 6 and a belt 18; the motor 17 is fixed on the swing frame 19, the driving belt pulley 16 is fixed on an output shaft 24 of the motor 17, the driven belt pulley 6 is arranged on the main shaft 7, and the belt 18 is wound on the driving belt pulley 16 and the driven belt pulley 6. The driving pulley 16, the driven pulley 6 and the belt 18 are covered by a pulley guard 26, and the pulley guard 26 is fixed to the swing frame 19. The swing frame 19 is provided with a controller 25 for the motor 17, the controller 25 being commercially available.

The two sides of the cutting blade 20 are respectively clamped by a cutting blade retainer ring 11 and a cutting blade pressing ring 12, the cutting blade retainer ring 11 is fixed on the main shaft 7, and the cutting blade pressing ring 12 is pressed on the cutting blade 20 through a nut 14. The cutting blade 20 is provided with a semi-surrounding cutting blade guard 28, which cutting blade guard 28 is fixed to the swing frame 19.

The utility model discloses a theory of operation is:

the cast iron pipe 23 is placed between the two rows of rollers 9 by using a hoisting device or manually, and the lower half part of the cast iron pipe 23 is supported by the two rows of rollers 9. According to the length of the cast iron pipe 23 to be cut, a worker measures the axial length from the end of the cast iron pipe 23 to the cutting blade 20 (at this time, the motor 17 is not started, and the cutting blade 20 can be pressed down to the outer wall of the cast iron pipe 23 by the handle 21 for convenient measurement), and then the workbench 2 can be moved by screwing or unscrewing the adjusting screw 27, so that the cast iron pipe 23 is driven to move along with the cutting blade 20 until the axial length from the end of the cast iron pipe 23 to the cutting blade 20 is equal to the preset length to be cut. It should be noted that: the cutting blade 20 needs to be removed from the outer wall of the cast iron pipe 23 during the movement of the work table 2 and after the cast iron pipe 23 is adjusted in place. Typically, the end of the cast iron pipe 23 needs to be kept at a distance from the handle 21 in order not to disturb the swinging of the handle 21.

The motor 17 is then activated by the controller 25 to start the rotation of the cutting blade 20, the handle 21 is pulled to make the cutting blade 20 abut against the cast iron pipe 23, and the cast iron pipe 23 is slowly pressed downwards to be cut open. Because the diameter of the cast iron pipe 23 is larger, the cutting piece 20 can not finish cutting once, at this time, the motor 17 can be stopped, the swing frame 19 is reset, the cast iron pipe 23 is rotated for a certain angle and then is cut again, and the whole circumferential direction is known to be cut, so that a section of the cast iron pipe 23 with a preset length is cut. The subsequent cutting of the cast iron pipe 23 to a predetermined length is simply repeated.

The above description is only a preferred embodiment of the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cast iron pipe cutting machine is characterized in that: the device comprises a horizontally arranged base (1), a workbench (2) arranged on the top surface of the base (1) and used for supporting a cast iron pipe (23), a vertical frame (15) fixed on the base (1), and a cutting mechanism arranged on the vertical frame (15);

the top surface of the workbench (2) is provided with a bearing component of the cast iron pipe (23), a plurality of rollers (5) are arranged between the bottom surface of the workbench (2) and the base (1), the axes of the rollers (5) are vertical to the axis of the cast iron pipe (23), so that the workbench (2) can move along the axis direction of the cast iron pipe (23) under the bearing of the rollers (5), and a guide component and a locking component are also arranged between the base (1) and the workbench (2);

the cutting mechanism comprises a vertical frame (15), a swinging frame (19), a main shaft (7), a cutting blade (20), a main shaft (7) driving assembly and a handle (21); the vertical frame (15) is fixed on the top surface of the machine base (1), the swing frame (19) is arranged on the vertical frame (15) in a swinging mode through a pin shaft (22), the main shaft (7) is arranged at one end, close to the workbench (2), of the swing frame (19) through a bearing (10), the cutting blade (20) is fixed on the main shaft (7), the axial lines of the main shaft (7) and the cutting blade (20) are parallel to the axial line of the cast iron pipe (23), the driving assembly is arranged on the swing frame (19) and drives the main shaft (7) to rotate, and the handle (21) is fixed on the swing frame (19) and used for pulling the swing frame (19) to swing around the pin shaft (22).

2. The pipe cutting machine for cast iron pipes as claimed in claim 1, wherein: the bearing assembly comprises two rows of rollers (9) with roller seats (3), a certain distance is kept between the two rows of rollers (9), the roller seats (3) are fixed on the workbench (2), the rollers (9) are installed at the top of the roller seats (3), and the axes of the rollers (9) are parallel to the axis of the cast iron pipe (23).

3. The pipe cutting machine for cast iron pipes as claimed in claim 1, wherein: the guide assembly comprises a guide pin (4) and a guide groove (8), the guide groove (8) is formed in the workbench (2) and extends parallel to the axis of the cast iron pipe (23), the guide pin (4) is vertically fixed on the machine base (1), and the upper end of the guide pin (4) is inserted into the guide groove (8) and is in clearance fit with the guide groove (8).

4. The pipe cutting machine for cast iron pipes as claimed in claim 1, wherein: the locking assembly comprises a fixed seat (13), an adjusting screw rod (27) and a fixing nut (14), the fixed seat (13) is fixed on the machine base (1), the fixing nut (14) is fixed at the end of the workbench (2), the adjusting screw rod (27) is installed in a screw hole of the fixed seat (13) and matched with the fixing nut (14), and the adjusting screw rod (27) and the axis of the cast iron pipe (23) are arranged in parallel.

5. The pipe cutting machine for cast iron pipes as claimed in claim 1, wherein: the main shaft (7) driving component comprises a motor (17), a driving belt pulley (16), a driven belt pulley (6) and a belt (18); the motor (17) is fixed on the swing frame (19), the driving belt pulley (16) is fixed on an output shaft (24) of the motor (17), the driven belt pulley (6) is installed on the main shaft (7), and the belt (18) is wound on the driving belt pulley (16) and the driven belt pulley (6).

6. The pipe cutting machine for cast iron pipes as claimed in claim 5, wherein: the driving belt pulley (16), the driven belt pulley (6) and the belt (18) are covered by a belt pulley protective cover (26), and the belt pulley protective cover (26) is fixed on the swing frame (19).

7. The pipe cutting machine for cast iron pipes as claimed in claim 1, wherein: the two sides of the cutting blade (20) are respectively clamped by a cutting blade retainer ring (11) and a cutting blade pressing ring (12), the cutting blade retainer ring (11) is fixed on the main shaft (7), and the cutting blade pressing ring (12) is pressed on the cutting blade (20) through a nut (14).

8. The pipe cutting machine for cast iron pipes as claimed in claim 1, wherein: the cutting blade (20) is provided with a semi-surrounding cutting blade protective cover (28), and the cutting blade protective cover (28) is fixed on the swing frame (19).