Positive and negative burr grinding equipment for fine blanking hinge flat plate piece

Abstract

The invention discloses equipment capable of being used for polishing front and back burrs of a fine blanking hinge flat plate piece, and relates to the technical field of part machining, the equipment comprises a bottom frame and bottom feet arranged on the lower side of the bottom frame, an equipment body is arranged on the upper side of the bottom frame, supporting frames are arranged on the two sides of the equipment body respectively, and one end of each supporting frame is installed on the upper side of the bottom frame; protective doors are arranged at the two ends of the equipment body respectively, a conveying belt is installed between the equipment body and the bottom frame, a dust collection air channel is formed in the equipment body, a polishing abrasive belt is arranged on one side of the dust collection air channel, and one end of the polishing abrasive belt is arranged above the conveying belt.

Description

Technical Field

[0001] This invention relates to the field of parts processing technology, and in particular to a device for grinding burrs on both sides of fine-stamped hinge flat parts. Background Technology

[0002] As people's living standards improve, the requirements for the quality and aesthetics of refrigerators are also increasing. Therefore, fine blanking technology has been gradually introduced into the production of refrigerator hinges. Fine blanking can improve the surface finish of stamped parts, but due to the limitations of the process, it creates a large number of burrs on the reverse side of the stamped parts. These burrs are quite high, with a thickness between 0.1 and 0.5 mm and a height that can reach 3 to 5 mm. These burrs must be polished before proceeding to the next process, and polishing is more efficient and yields the best results on flat parts before they are formed.

[0003] Before the development of the equipment, manual sanding using belt sanders was employed. This method was prone to uneven sanding, resulting in high efficiency and labor costs. Furthermore, the large amount of dust and debris generated during sanding posed a serious health risk to the workers. Therefore, a sanding device for both front and back burrs on precision-stamped hinge flat parts was designed to address these issues. Summary of the Invention

[0004] This invention proposes a grinding equipment for burrs on both sides of precision blanking hinge flat parts. It solves the problems of uneven grinding, high efficiency and labor costs, and the large amount of dust and splashes during grinding, which seriously affect the health of grinding personnel. Before the equipment was manufactured, manual grinding with belt sanders was used.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a grinding device for burrs on both sides of a precision blanking hinge flat part, comprising a base frame and feet disposed on the lower side of the base frame, a main body of the device disposed on the upper side of the base frame, support frames disposed on both sides of the main body of the device, one end of the support frame being mounted on the upper side of the base frame, protective doors disposed at both ends of the main body of the device, a conveyor belt being installed between the main body of the device and the base frame, and a dust extraction duct being disposed inside the main body of the device, a grinding sanding belt being disposed on one side of the dust extraction duct, and one end of the grinding sanding belt being disposed above the conveyor belt.

[0006] Preferably, a mounting frame is installed on one side of the support frame, and the mounting frame is located at the bottom of the equipment body. The inner wall of the mounting frame is provided with a rotatably connected conveyor roller, and the conveyor belt is located on the outside of the conveyor roller.

[0007] Preferably, a drive motor is provided on one side of the mounting frame, and the drive motor is installed on the outside of the main body of the equipment. The drive motor is fixedly connected to one end of the conveyor roller.

[0008] Preferably, the main body of the equipment is provided with two pairs of baffles inside, and each pair of baffles is provided with two baffles inside. The baffles are respectively installed on both sides of the main body of the equipment, and the upper end of the baffle is provided with a placement frame. One side of the placement frame is provided with a first mounting roller rotatably connected, and the lower end of one side of the baffle is provided with a second mounting roller rotatably connected. The grinding sanding belt is located outside the first mounting roller and the second mounting roller, and a fixing bolt is provided between the baffle and the mounting frame.

[0009] Preferably, the lower side of the placement frame is provided with a sanding belt adjustment mechanism, and the sanding belt adjustment mechanism is located inside the sanding belt, and the sanding belt adjustment mechanism is located between the first mounting roller and the second mounting roller.

[0010] Preferably, a connecting frame is installed on the inner wall of the main body of the equipment, and the dust suction duct is fixedly installed on one side of the connecting frame. The upper end of the dust suction duct is provided with a dust suction air interface, and the dust suction air interface is located on the upper side of the main body of the equipment.

[0011] Preferably, the lower end of the dust extraction duct is provided with a dust extraction head, which is positioned above the conveyor belt. A fixing frame is installed on the upper side of the mounting frame, and two limiting rollers are provided on one side of the fixing frame, which are positioned below the dust extraction head.

[0012] Preferably, an electromagnet is provided on the upper side of the mounting bracket, and the electromagnet is positioned at the location of the sanding belt and the conveyor belt.

[0013] The beneficial effects of this invention are: 1. Place the hinge plate with the burr facing upwards on one side of the conveyor belt. As the conveyor belt moves, it will transport the plate to the two sanding belts inside. The sanding belts can rotate at high speed under the drive of the motor, and the rotation direction is opposite, so that the burrs can be sanded in both directions, thereby improving the sanding effect. 2. The polished hinge plate parts are transported to the other side by the conveyor belt. One person can collect the hinge plate parts. The use of wide conveyor belts and sanding belts allows multiple parts to be placed side by side at the same time. They can be placed side by side without overlapping. The parts can be placed in no particular order. Two people can complete the polishing work. The polishing work can be completed at 1,000 to 3,000 pieces per hour, which greatly improves work efficiency. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of an equipment for grinding burrs on both sides of a precision blanking hinge plate, as proposed in this invention. Figure 2 This is a main structural view of a grinding equipment for the front and back burrs of a precision blanking hinge plate part proposed in this invention; Figure 3 This is an enlarged view of point C of a grinding device for the front and back burrs of a precision blanking hinge plate part proposed in this invention; Figure 4 This is an enlarged view of point A of a grinding device for the front and back burrs of a precision blanking hinge plate part proposed in this invention; Figure 5 This is an enlarged view of section B of a grinding device for burrs on both sides of a precision blanking hinge plate part proposed in this invention.

[0015] The following are the labels in the diagram: 1. Base frame; 2. Foot; 3. Support frame; 4. Protective door; 5. Main body of equipment; 6. Conveyor belt; 7. Conveyor roller; 8. Mounting frame; 9. Grinding sanding belt; 10. Dust extraction duct; 11. Dust extraction air interface; 12. First mounting roller; 13. Connecting frame; 14. Second mounting roller; 15. Drive motor; 16. Placement frame; 17. Sanding belt adjustment mechanism; 18. Baffle; 19. Limiting roller; 20. Dust extraction head; 21. Fixing frame; 22. Fixing bolt; 23. Electromagnet. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] Example 1: Refer to Figure 1-2 A device for burr grinding of front and back flat parts for fine blanking hinges includes a base frame 1 and base feet 2 set on the lower side of the base frame 1. The upper side of the base frame 1 is provided with a main body 5. Support frames 3 are provided on both sides of the main body 5, and one end of the support frame 3 is installed on the upper side of the base frame 1. Protective doors 4 are provided at both ends of the main body 5. A conveyor belt 6 is installed between the main body 5 and the base frame 1. A dust suction duct 10 is provided inside the main body 5. A sanding belt 9 is provided on one side of the dust suction duct 10, and one end of the sanding belt 9 is set above the conveyor belt 6. The main body 5 of the equipment is welded from frame profiles, and the bottom is equipped with adjustable feet 2 to ensure that the equipment can be placed horizontally on the ground. The main body 5 is equipped with openable protective doors 4 around it to prevent dust from flying and injuring personnel. The sanding belt adjustment mechanism 17 realizes the tension adjustment and sanding belt replacement functions of the sanding belt 9. At the same time, the gap between the sanding belt 9 and the conveyor belt 6 can be adjusted by the sanding belt adjustment mechanism 17 to suit hinged flat parts of different thicknesses and to control the amount of sanding. By installing an additional suction device at the dust suction air interface 11, the dust and iron filings generated during sanding can be sucked away to avoid contaminating the conveyor belt 6.

[0018] A mounting frame 8 is installed on one side of the support frame 3, and the mounting frame 8 is located at the bottom of the equipment body 5. A conveyor roller 7 is rotatably connected to the inner wall of the mounting frame 8, and a conveyor belt 6 is located on the outer side of the conveyor roller 7. A drive motor 15 is installed on one side of the mounting frame 8, and the drive motor 15 is mounted on the outer side of the equipment body 5. The drive motor 15 is fixedly connected to one end of the conveyor roller 7. The surface of the conveyor belt 6 is made of durable rubber and has a textured surface to increase friction with the hinge plate. Two sets of sanding belts 9 are provided, which rotate rapidly under the drive of the sanding motor and the mounting roller. The two sets of sanding belts 9 rotate in opposite directions, thus achieving sanding effects in two directions.

[0019] Example 2: Refer to Figure 1-5 A device for burr grinding of front and back flat parts for fine blanking hinges includes a base frame 1 and base feet 2 set on the lower side of the base frame 1. The upper side of the base frame 1 is provided with a main body 5. Support frames 3 are provided on both sides of the main body 5, and one end of the support frame 3 is installed on the upper side of the base frame 1. Protective doors 4 are provided at both ends of the main body 5. A conveyor belt 6 is installed between the main body 5 and the base frame 1. A dust suction duct 10 is provided inside the main body 5. A sanding belt 9 is provided on one side of the dust suction duct 10, and one end of the sanding belt 9 is set above the conveyor belt 6. The main body 5 of the equipment is welded from frame profiles, and the bottom is equipped with adjustable feet 2 to ensure that the equipment can be placed horizontally on the ground. The main body 5 is equipped with openable protective doors 4 around it to prevent dust from flying and injuring personnel. The surface of the conveyor belt 6 is made of durable rubber and has a pattern to increase the friction with the hinge plate. There are two sets of sanding belts 9, which rotate rapidly under the drive of the sanding motor and the mounting roller. The two sets of sanding belts 9 rotate in opposite directions, thereby achieving sanding effects in two directions.

[0020] The main body 5 of the equipment has two pairs of baffles 18 inside, and each pair of baffles 18 has two baffles 18 inside. The baffles 18 are installed on both sides of the main body 5. The upper end of the baffle 18 is provided with a placement frame 16. One side of the placement frame 16 is provided with a first mounting roller 12 rotatably connected, and the lower end of one side of the baffle 18 is provided with a second mounting roller 14 rotatably connected. The sanding belt 9 is set outside the first mounting roller 12 and the second mounting roller 14. A fixing bolt 22 is provided between the baffle 18 and the mounting frame 8. The lower side of the placement frame 16 is provided with a sanding belt adjustment mechanism 17, which is set inside the sanding belt 9 and between the first mounting roller 12 and the second mounting roller 14. The sanding belt adjustment mechanism 17 realizes the tension adjustment and sanding belt replacement functions of the sanding belt 9. At the same time, the gap between the sanding belt 9 and the conveyor belt 6 can be adjusted by the sanding belt adjustment mechanism 17 to suit hinge flat parts of different thicknesses and to control the sanding amount. By installing an additional suction device at the dust suction air interface 11, the dust and iron filings generated during sanding can be sucked away to avoid contaminating the conveyor belt 6.

[0021] Example 3: Reference Figure 1-5 A device for burr grinding of front and back flat parts for fine blanking hinges includes a base frame 1 and base feet 2 set on the lower side of the base frame 1. The upper side of the base frame 1 is provided with a main body 5. Support frames 3 are provided on both sides of the main body 5, and one end of the support frame 3 is installed on the upper side of the base frame 1. Protective doors 4 are provided at both ends of the main body 5. A conveyor belt 6 is installed between the main body 5 and the base frame 1. A dust suction duct 10 is provided inside the main body 5. A sanding belt 9 is provided on one side of the dust suction duct 10, and one end of the sanding belt 9 is set above the conveyor belt 6. The main body 5 of the equipment is welded from frame profiles, and the bottom is equipped with adjustable feet 2 to ensure that the equipment can be placed horizontally on the ground. The main body 5 is equipped with openable protective doors 4 around it to prevent dust from flying and injuring personnel. The surface of the conveyor belt 6 is made of durable rubber and has a pattern to increase the friction with the hinge plate. There are two sets of sanding belts 9, which rotate rapidly under the drive of the sanding motor and the mounting roller. The two sets of sanding belts 9 rotate in opposite directions, thereby achieving sanding effects in two directions. The sanding belt adjustment mechanism 17 realizes the tension adjustment and sanding belt replacement functions of the sanding belt 9. At the same time, the gap between the sanding belt 9 and the conveyor belt 6 can be adjusted by the sanding belt adjustment mechanism 17 to suit hinge plate parts of different thicknesses and to control the amount of sanding. By installing an additional suction device at the dust suction air interface 11, the dust and iron filings generated during sanding can be sucked away to prevent contamination of the conveyor belt 6.

[0022] A connecting frame 13 is installed on the inner wall of the main body 5 of the equipment, and a dust suction duct 10 is fixedly installed on one side of the connecting frame 13. A dust suction port 11 is provided at the upper end of the dust suction duct 10, and the dust suction port 11 is located on the upper side of the main body 5 of the equipment. A dust suction head 20 is provided at the lower end of the dust suction duct 10, and the dust suction head 20 is located above the conveyor belt 6. A fixing frame 21 is installed on the upper side of the mounting frame 8, and two limiting rollers 19 are provided on one side of the fixing frame 21, and the limiting rollers 19 are located below the dust suction head 20. An electromagnet 23 is provided on the upper side of the mounting frame 8, and the electromagnet 23 is located at the position of the sanding belt 9 and the conveyor belt 6. When the hinge plate moves close to the sanding belt 9, it will be attracted by the electromagnet 23 at the conveyor belt 6, generating a large friction force to ensure that the position remains unchanged. While increasing the sanding effect, it can prevent the hinge plate from moving or even flying off due to the sanding force, causing personal injury.

[0023] Working Principle: The main body 5 of the equipment is welded from frame profiles, and adjustable feet 2 are installed at the bottom to ensure that the equipment can be placed horizontally on the ground. Openable protective doors 4 are provided around the main body 5 to prevent dust from splashing and injuring personnel. The conveyor belt 6 is driven by a motor 15 at one end, moving in a cyclical direction. The surface of the conveyor belt 6 is made of durable rubber with a textured surface to increase friction with the hinge plate. An electromagnet 23 is located near the sanding belt 9 on the conveyor belt 6. The hinge plate is placed on top of the conveyor belt 6 and moves with it. When the hinge plate moves close to the sanding belt 9, it is attracted by the electromagnet 23 on the conveyor belt 6, generating high friction. To ensure the position remains unchanged and enhance the polishing effect, the hinge plate parts can be prevented from moving or even flying off due to the force applied during polishing, thus avoiding personal injury. There are two sets of polishing belts 9, which rotate rapidly under the drive of the polishing motor and the mounting roller. The two sets of polishing belts 9 rotate in opposite directions, thereby achieving polishing effects in two directions. The sanding belt adjustment mechanism 17 can realize the tension adjustment and sanding belt replacement functions of the polishing belts 9. At the same time, the gap between the polishing belts 9 and the conveyor belt 6 can be adjusted through the sanding belt adjustment mechanism 17 to suit hinge plate parts of different thicknesses and to control the amount of polishing. By installing an additional suction device at the dust suction air interface 11, the dust and iron filings generated during polishing can be sucked away to avoid contaminating the conveyor belt 6.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for grinding burrs on both sides of a precision-stamped hinge plate, comprising a base frame (1) and feet (2) disposed on the underside of the base frame (1), characterized in that: The base frame (1) has a main body (5) on its upper side. Support frames (3) are provided on both sides of the main body (5). One end of the support frame (3) is installed on the upper side of the base frame (1). Protective doors (4) are provided at both ends of the main body (5). A conveyor belt (6) is installed between the main body (5) and the base frame (1). A dust suction duct (10) is provided inside the main body (5). A sanding belt (9) is provided on one side of the dust suction duct (10). One end of the sanding belt (9) is located above the conveyor belt (6).

2. The equipment for grinding burrs on both sides of a precision-stamped hinge plate as described in claim 1, characterized in that: A mounting frame (8) is installed on one side of the support frame (3), and the mounting frame (8) is located at the bottom of the equipment body (5). The inner wall of the mounting frame (8) is provided with a rotatably connected conveyor roller (7), and the conveyor belt (6) is located on the outside of the conveyor roller (7).

3. The equipment for grinding burrs on both sides of a precision-stamped hinge plate as described in claim 2, characterized in that: The mounting bracket (8) has a drive motor (15) on one side, and the drive motor (15) is installed on the outside of the equipment body (5). The drive motor (15) is fixedly connected to one end of the conveyor roller (7).

4. The equipment for grinding burrs on both sides of a precision-stamped hinge plate as described in claim 1, characterized in that: The main body (5) of the equipment is provided with two pairs of baffles (18), and each pair of baffles (18) is provided with two baffles (18). The baffles (18) are respectively installed on both sides of the main body (5), and the upper end of the baffle (18) is provided with a placement frame (16). One side of the placement frame (16) is provided with a first mounting roller (12) rotatably connected, and the lower end of one side of the baffle (18) is provided with a second mounting roller (14) rotatably connected. The sanding belt (9) is set outside the first mounting roller (12) and the second mounting roller (14). The baffle (18) and the mounting frame (8) are provided with fixing bolts (22).

5. The equipment for grinding burrs on both sides of a precision-stamped hinge plate as described in claim 4, characterized in that: The lower side of the placement frame (16) is provided with a sanding belt adjustment mechanism (17), and the sanding belt adjustment mechanism (17) is located inside the sanding belt (9). The sanding belt adjustment mechanism (17) is located between the first mounting roller (12) and the second mounting roller (14).

6. The equipment for grinding burrs on both sides of a precision-stamped hinge plate as described in claim 2, characterized in that: The inner wall of the main body (5) of the equipment is equipped with a connecting frame (13), and the dust suction duct (10) is fixedly installed on one side of the connecting frame (13). The upper end of the dust suction duct (10) is provided with a dust suction air interface (11), and the dust suction air interface (11) is located on the upper side of the main body (5).

7. A burr-removing and polishing device for fine-stamped hinge flat parts according to claim 6, characterized in that: The lower end of the dust extraction duct (10) is provided with a dust extraction head (20), and the dust extraction head (20) is located above the conveyor belt (6). A fixing frame (21) is installed on the upper side of the mounting frame (8), and two limiting rollers (19) are provided on one side of the fixing frame (21). The limiting rollers (19) are located below the dust extraction head (20).

8. A burr-removing and polishing device for fine-stamped hinge flat parts according to claim 2, characterized in that: The mounting bracket (8) is provided with an electromagnet (23) on its upper side, and the electromagnet (23) is located at the position of the sanding belt (9) and the conveyor belt (6).

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