CN113351826B

CN113351826B - Method for manufacturing integrally cast saw bow

Info

Publication number: CN113351826B
Application number: CN202110617627.1A
Authority: CN
Inventors: 应安玮
Original assignee: Zhejiang Xieli Machinery Tool Co ltd
Current assignee: Zhejiang Xieli Machinery Tool Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-12-06
Anticipated expiration: 2041-05-31
Also published as: CN113351826A

Abstract

The invention provides a manufacturing method of an integrally cast saw bow, belonging to the technical field of casting. The manufacturing method of the integrally cast saw bow comprises the following steps: placing a mould saw bow in a lower sand box on a continuous conveying conveyor belt through a taking and placing mechanism, arranging a lifting platform capable of lifting on the lower part of the lower sand box and penetrating through the lower sand box, and paving and tamping the lower sand box with sand; turning over a lower sand box through a turnover mechanism, after resin sand is spread on the surface of the lower sand box, placing an upper sand box on the lower sand box, placing a feeding pipe and an air outlet pipe, placing the upper sand box in the lower sand box, and spreading and tamping the upper sand box with the sand; taking down the cope flask, and taking out the mould saw bow in the drag flask through a taking and placing mechanism; and (4) putting the upper sand box back on the lower sand box again, pulling out the feed pipe and the air outlet pipe, and pouring and forming.

Description

Method for manufacturing integrally cast saw bow

Technical Field

The invention belongs to the technical field of casting, and particularly relates to a manufacturing method of an integrally cast saw bow.

Background

The saw bow with saw blade makes reciprocating motion and feeds in the mode that the saw frame swings around a fulcrum, and the machine tool has simple structure, small volume and lower efficiency. The motion tracks of the saw blade of the hacksaw machine are a straight line and an arc line. When the bow moves in an arc, the saw bow swings a small angle around a fulcrum, the incision amount of each saw tooth is large, the chips can be removed easily, the efficiency is high, and the novel bow sawing machine mostly adopts the mode.

The saw bow used on the sawing machine is generally formed by welding a plurality of parts, the manufacturing efficiency is low, a plurality of procedures such as positioning, welding and polishing are needed in the middle, and the production efficiency of the sawing machine is greatly reduced.

Disclosure of Invention

The invention aims to solve the problems in the prior art, provides a method for manufacturing an integrally cast saw bow, and has the characteristic of high manufacturing efficiency.

The purpose of the invention can be realized by the following technical scheme:

the manufacturing method of the integrally cast saw bow is characterized by comprising the following steps of:

placing a mould saw bow in a lower sand box on a continuous conveying conveyor belt through a taking and placing mechanism, arranging a lifting platform capable of lifting on the lower part of the lower sand box and penetrating through the lower sand box, and paving and tamping the lower sand box with sand;

turning over a lower sand box through a turnover mechanism, after resin sand is spread on the surface of the lower sand box, placing an upper sand box on the lower sand box, placing a feeding pipe and an air outlet pipe, placing the upper sand box in the lower sand box, and spreading and tamping the upper sand box with the sand;

taking down the cope flask, taking out the mold saw bow in the drag flask through the taking and placing mechanism, and simultaneously taking out the feed pipe and the air outlet pipe;

and (4) putting the upper sand box back on the lower sand box again, pulling out the feed pipe and the air outlet pipe, and pouring and forming.

In the manufacturing method of the cast saw bow, the taking and placing mechanism comprises a plurality of mechanical arms, a vibrating arm, a fixing frame and a first push rod motor, the first push rod motor is fixed on the fixing frame, the vibrating arm is arranged on the fixing frame in a sliding mode, a push rod of the first push rod motor is connected with the vibrating arm and provided with the vibrating arm to slide, the mechanical arms are fixed on the vibrating arm, and the mechanical arms are used for clamping the die saw bow.

In the manufacturing method of the casting saw bow, the bracket is fixed on the conveyor belt, the lower sand box is rotatably arranged on the bracket, the lifting platform is positioned at the bottom of the lower sand box when the sand is placed, and a space is formed between the lifting platform and the lower sand box when the lower sand box is turned over.

In the manufacturing method of the cast saw bow, the continuous conveying belt is an annular conveying belt, a plurality of through holes are formed in the annular conveying belt, the lifting table is located above the through holes, and a second push rod motor capable of pushing the lifting table to lift is arranged at the lower portion of the lifting table.

In the manufacturing method of the casting saw bow, the turnover mechanism comprises a rotating wheel, and the rotating wheel is coaxially connected with the drag flask.

In the manufacturing method of the cast saw bow, a third push rod motor is fixed on the bracket, and a push rod of the third push rod motor is fixedly connected with the cope flask.

Compared with the prior art, the invention has the following advantages:

compared with the traditional multi-part welding and assembling method, the manufacturing method has higher efficiency, and compared with the common casting method, the manufacturing method adopts more automatic equipment, and can greatly improve the casting efficiency.

Drawings

FIG. 1 is a schematic of the present invention.

Fig. 2 is a schematic diagram of the pick and place mechanism of the present invention.

In the figure, 1, a conveyor belt; 2. a pick-and-place mechanism; 21. a manipulator; 22. a vibrating arm; 23. a fixed mount; 24. a first push rod motor; 3. a lifting platform; 4. a drag flask; 5. a cope flask; 6. a support; 7. spacing; 8. a second push rod motor; 9. a rotating wheel; 10. and a third push rod motor.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 2, the method for manufacturing the integrally cast bow is characterized by comprising the following steps:

placing a mould saw bow on a drag flask 4 on a continuous conveying conveyor belt 1 through a taking and placing mechanism 2, arranging a lifting platform 3 capable of lifting at the lower part of the drag flask 4 and penetrating the drag flask 4, and paving and tamping the drag flask 4 with sand;

turning over the lower sand box 4 through the turnover mechanism, after resin sand is spread on the surface of the lower sand box 4, placing the upper sand box 5 on the lower sand box 4, placing the feeding pipe and the air outlet pipe in the lower sand box, and spreading and tamping the upper sand box 5 with the sand;

taking down the cope flask 5, taking out the drag flask 4 from the mould saw bow through the taking and placing mechanism 2, and simultaneously taking out the feeding pipe and the air outlet pipe;

and (4) replacing the upper sand box 5 on the lower sand box 4, pulling out the feeding pipe and the air outlet pipe, and pouring and forming.

Compared with the traditional multi-part welding and assembling method, the manufacturing method has higher efficiency, and compared with the common casting method, the manufacturing method adopts more automatic equipment, so that the casting efficiency can be greatly improved. The mould saw bow can be automatically taken and placed through the taking and placing mechanism, the forming efficiency in the sand box is improved, and the mould saw bow can be repeatedly used.

Specifically, get and put mechanism 2 and include a plurality of manipulators 21, vibration arm 22, mount 23 and first push rod motor 24, first push rod motor 24 is fixed on mount 23, vibration arm 22 slides and sets up on mount 23, the push rod of first push rod motor 24 with vibration arm 22 links to each other and takes its slip, manipulator 21 is fixed on vibration arm 22, manipulator 21 is used for pressing from both sides the clamp and gets the mould bow. The mould saw bow is clamped through the manipulator 21 and then sent into the drag box 4 through the first push rod motor 24, when the mould saw bow is taken out, the mould saw bow is clamped through the manipulator, the vibrating arm 22 is internally provided with the vibrating motor, and the mould saw bow is separated from the shaped sand through the vibrating motor, so that the mould saw bow is convenient to take out. The manipulator 21 can drive the die saw bow to move up and down or horizontally.

Specifically, a bracket 6 is fixed on the conveyor belt 1, the drag flask 4 is rotatably arranged on the bracket 6, the lifting platform 3 is positioned at the bottom of the drag flask 4 when sand is placed, and a space 7 is formed between the lifting platform 3 and the drag flask 4 when the drag flask 4 is turned over. This design can make things convenient for sand box 4 to overturn, also can make things convenient for the yam to put into sand box 4 simultaneously.

Specifically, the continuous conveying belt 1 is an annular conveying belt, a plurality of through holes are formed in the annular conveying belt, the lifting table 3 is located above the through holes, and a second push rod motor 8 capable of pushing the lifting table 3 to lift is arranged on the lower portion of the lifting table. The second push rod motor 8 is directly fixed on the conveying belt, then the push rod of the second push rod motor 8 can be aligned to the through hole on the conveying belt, the push rod can penetrate through the through hole and jack the lifting platform 3 upwards, so that the lifting platform 3 is attached to the lower part of the lower sand box 4, and sand filling is facilitated.

Specifically, the turning mechanism includes a rotary wheel 9, and the rotary wheel 9 is coaxially connected with the drag flask 4. The drag flask 4 can be conveniently turned over by the turning wheels.

Specifically, a third push rod motor 10 is fixed on the bracket 6, and a push rod of the third push rod motor 10 is fixedly connected with the cope flask 5. The cope flask 5 can be driven to ascend and descend by the third push rod motor 10.

The above components are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The manufacturing method of the integrally cast saw bow is characterized by comprising the following steps of:

placing a mould saw bow in a lower sand box (4) on a continuous conveying conveyor belt (1) through a taking and placing mechanism (2), arranging a lifting platform (3) capable of lifting at the lower part of the lower sand box and penetrating the lower sand box, and fully paving and tamping the lower sand box with sand;

the lower sand box is turned by the turnover mechanism, after resin sand is spread on the surface of the lower sand box, the upper sand box (5) is placed on the lower sand box, and after the feeding pipe and the air outlet pipe are placed, the upper sand box (5) is fully paved and tamped by sand;

taking down the cope flask (5), and taking out the mould saw bow in the drag flask (4) through the taking and placing mechanism (2);

the upper sand box (5) is put back on the lower sand box again, the feed pipe and the air outlet pipe are pulled out, and pouring forming is carried out;

the mould sawing and sawing mechanism is characterized in that the picking and placing mechanism (2) comprises a plurality of mechanical arms (21), a vibrating arm (22), a fixing frame (23) and a first push rod motor (24), the first push rod motor (24) is fixed on the fixing frame (23), the vibrating arm (22) is arranged on the fixing frame (23) in a sliding mode, a push rod of the first push rod motor (24) is connected with the vibrating arm (22) and drives the vibrating arm (22) to slide, the mechanical arms (21) are fixed on the vibrating arm (22), and the mechanical arms (21) are used for clamping a mould saw bow;

a support (6) is fixed on the conveyor belt (1), the lower sand box is rotatably arranged on the support (6), the lifting platform (3) is positioned at the bottom of the lower sand box when sand is placed, and a space (7) is formed between the lifting platform (3) and the lower sand box when the lower sand box is turned over;

the continuous conveying conveyor belt (1) is an annular conveyor belt, a plurality of through holes (1 a) are formed in the annular conveyor belt, the lifting platform (3) is positioned above the through holes (1 a), and a second push rod motor (8) capable of pushing the lifting platform (3) to lift is arranged at the lower part of the lifting platform;

and a third push rod motor (10) is fixed on the support (6), a push rod of the third push rod motor (10) is fixedly connected with the cope flask (5), and the cope flask (5) can be driven to lift through the third push rod motor (10).

2. A method of manufacturing a foundry saw bow according to claim 1, wherein the turning mechanism comprises a turning wheel (9), the turning wheel (9) being coaxially connected with the drag flask.