Precise metal sheet stamping device

Abstract

The utility model relates to a precise metal sheet stamping device which comprises a base, a stamping assembly and a cleaning assembly, the stamping assembly comprises a fixed die, a movable die and a vertical driving part, the movable die and the fixed die are closed to stamp a metal sheet, and the driving end of the vertical driving part is connected with the movable die; the cleaning assembly comprises a cleaning frame, a plurality of guide wheels, a cleaning driving part and cleaning belts, the metal sheet penetrates through the cleaning frame and moves horizontally, and the cleaning belts are arranged on the upper side and the lower side of the metal sheet correspondingly, abut against the metal sheet and slide relative to the metal sheet; an included angle is formed between the moving direction of the cleaning belt and the moving direction of the metal sheet, the reading of the included angle is smaller than 90 degrees and larger than zero degree, and the conveying direction, close to the side wall of the metal sheet, of the cleaning belt inclines towards the direction away from the stamping assembly. Before stamping, the cleaning belt is used for wiping the surface of the metal sheet, so that chippings are wiped away, and the surface quality of the metal sheet is not prone to being affected in the subsequent stamping process.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of stamping equipment, in particular to a precise metal sheet stamping device. BACKGROUND

[0002] When a metal sheet is processed to form a required part, the metal sheet is usually passed through a continuous die, and the metal sheet is stamped multiple times by the continuous die to process the metal sheet into a required shape.

[0003] However, before the metal sheet is subjected to stamping processing, the metal sheet with a large size is usually cut into small pieces and into a metal sheet with a stamping size by cutting, but in the cutting process, scraps are adhered to the surface of the metal sheet, and if the metal sheet after cutting is directly subjected to stamping, the surface of the stamped product is adhered with the scraps, and the surface quality of the stamped product is affected.

[0004] Therefore, a new technical scheme needs to be proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In order to clean the scraps on the surface of the metal sheet before stamping, so that the surface quality of the stamped product is not easily affected, the application provides a precise metal sheet stamping device.

[0006] The application provides a precise metal sheet stamping device, which adopts the following technical scheme:

[0007] The precise metal sheet stamping device comprises a base, a stamping assembly arranged on the base and a cleaning assembly arranged on the base and used for cleaning scraps, the stamping assembly comprises a fixed die arranged on the base, a movable die vertically sliding on the base and a vertical driving piece used for driving the movable die to vertically move, the movable die is combined with the fixed die to stamp the metal sheet, and a driving end of the vertical driving piece is connected with the movable die.

[0008] The cleaning assembly comprises a cleaning frame, a plurality of guide wheels rotatably connected in the cleaning frame, a cleaning driving piece used for driving the guide wheels to rotate and a cleaning belt simultaneously sleeved on the guide wheels, the metal sheet is arranged in the cleaning frame and horizontally moves, the cleaning belt is arranged on the upper side and the lower side of the metal sheet respectively and abuts against and slides relative to the metal sheet, the moving direction of the cleaning belt is arranged at an angle with the moving direction of the metal sheet, the angle is less than ninety degrees and greater than zero, and the transmission direction of the side wall of the cleaning belt close to the metal sheet is inclined to a direction away from the stamping assembly.

[0009] By using the above technical scheme, the cleaning belt is used to wipe the surface of the metal sheet before stamping, so that the debris is removed, and the surface quality of the metal sheet is not easily affected in the subsequent stamping process.

[0010] Optionally, the cleaning belt is made of cotton, and a flushing assembly for flushing the cleaning belt is arranged in the cleaning frame, the flushing assembly comprises a spray head, a water pump for driving lubricating oil to move towards the spray head, and an oil tank for storing the lubricating oil, the oil tank is arranged in an upper opening manner, the spray head is arranged in the cleaning belt and the water outlet of the spray head faces the bottom surface of the inner cavity of the cleaning belt, the spray head is arranged above the opening of the oil tank, and the water pump is arranged in the oil tank.

[0011] By using the above technical scheme, after the cleaning belt removes the debris, the cleaning belt is flushed with lubricating oil to flush away the debris attached to the cleaning belt, so that the cleaning belt can be used continuously subsequently, and the cleaning belt can also coat lubricating oil on the metal sheet during the wiping process.

[0012] Optionally, a plurality of extrusion rollers are arranged in the cleaning frame, the two extrusion rollers are arranged on the inner and outer sides of the cleaning belt located below, and the two extrusion rollers jointly clamp and extrude the cleaning belt on the side close to each other, the extrusion rollers are arranged above the oil tank, and the extrusion rollers are arranged on the side facing the conveying direction of the spray head towards the cleaning belt.

[0013] By using the above technical scheme, after the lubricating oil is sprayed on the cleaning belt, the extrusion rollers are used to extrude the cleaning belt to extrude the excess lubricating oil on the cleaning belt.

[0014] Optionally, a plurality of reduced rings are arranged on the cleaning belt along the length direction of the cleaning belt, and the reduced rings are sleeved on the cleaning belt.

[0015] By using the above technical scheme, the debris can be located at the position of the reduced ring, so as to reduce the extrusion of the debris by the cleaning belt, and the debris is not easy to produce indentation on the metal sheet.

[0016] Optionally, a guide hopper is arranged on the oil tank, the lower end of the guide hopper communicates with the oil tank, and the upper end of the guide hopper is arranged below the cleaning belt and close to the spray head.

[0017] By using the above technical scheme, the lubricating oil dripping on the cleaning belt can fall into the oil tank better.

[0018] Optionally, a filter plate for filtering impurities is arranged in the oil tank, the filter plate separates the inner cavity of the oil tank, the guide hopper is arranged on one side of the filter plate, and the water pump is arranged on the other side of the filter plate.

[0019] By adopting the technical scheme, the water pump is not easily blocked by the debris when the water pump extracts the lubricating oil.

[0020] Optionally, the cleaning frame is further provided with a plurality of limiting wheels for limiting the position of the metal sheet, and the limiting wheels are arranged on the upper and lower sides of the metal sheet and abut against the metal sheet.

[0021] By adopting the technical scheme, the position of the metal sheet is limited by the limiting wheels, so that the position of the metal sheet can be maintained during conveying, thereby enabling the cleaning belt to stably remove the debris on the metal sheet.

[0022] Optionally, the position for inputting the metal sheet on the cleaning frame is provided with a blowing assembly, the blowing assembly comprises a plurality of air nozzles and a gas pump for driving the flow of gas, the air nozzles are arranged on the upper and lower sides of the metal sheet, the air outlets of the air nozzles are inclined towards the metal sheet and away from the cleaning frame.

[0023] By adopting the technical scheme, the larger debris on the metal sheet is blown off by the airflow before the metal sheet enters the cleaning frame.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. The cleaning belt is used to wipe the surface of the metal sheet before stamping, so that the debris is removed, and the surface quality of the metal sheet is not easily affected during subsequent stamping.

[0026] 2. After the debris is removed by the cleaning belt, the cleaning belt is washed with lubricating oil to clean the debris attached to the cleaning belt, so that the cleaning belt can be used continuously subsequently, and the cleaning belt can also coat lubricating oil on the metal sheet during wiping. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The structure of the embodiment of the present application is shown in the figure;

[0028] Figure 2 The figure shows the internal structure of the cleaning frame of the embodiment of the present application;

[0029] Figure 3 The figure shows the structure of the flushing assembly of the embodiment of the present application.

[0030] In the figure, 1. base; 2. stamping assembly; 21. fixed mold; 22. movable mold; 23. vertical drive member; 3. cleaning assembly; 31. cleaning frame; 311. through hole; 32. guide wheel; 33. cleaning drive member; 34. cleaning belt; 35. limiting wheel; 36. squeezing roller; 37. reducing ring; 4. flushing assembly; 41. nozzle; 42. water pump; 43. oil tank; 44. guide funnel; 45. filter plate; 5. blowing assembly; 51. air nozzle; 52. air pump. DETAILED DESCRIPTION

[0031] The present application is further described in detail below with reference to the accompanying drawings.

[0032] The present application discloses a precision metal sheet stamping device, such as Figure 1 As shown, it includes a base 1, a stamping assembly 2 provided on the base 1, and a cleaning assembly 3 provided on the base 1 for cleaning debris. The stamping assembly 2 includes a fixed die 21 provided on the base 1, a vertically sliding movable die 22, and a vertical driving member 23 for driving the movable die 22 to move. The fixed die 21 and the movable die 22 are engaged with each other to perform stamping and forming on the metal sheet. The movable die 22 is provided above the fixed die 21. In this embodiment, the vertical driving member 23 is a hydraulic cylinder. The hydraulic cylinder is provided on the base 1. The driving end of the hydraulic cylinder is connected to the upper end of the movable die 22, thereby driving the movable die 22 to move vertically, thereby realizing the engagement and separation of the fixed die 21 and the movable die 22.

[0033] like Figure 2As shown, the cleaning assembly 3 comprises a cleaning frame 31, a plurality of guide wheels 32 rotatably connected in the cleaning frame 31, a cleaning drive 33 for driving the guide wheels 32 to rotate, and a cleaning belt 34 sleeved on the guide wheels 32. The cleaning frame 31 is arranged at one end for inputting the metal sheet towards the stamping assembly 2. The cleaning frame 31 is provided with through holes 311 on the side walls close to and away from the stamping assembly 2 for passing the metal sheet. A plurality of limiting wheels 35 for limiting the position of the metal sheet are arranged in the cleaning frame 31. The limiting wheels 35 are arranged on the upper and lower sides of the metal sheet respectively and close to the through holes 311. The limiting wheels 35 on the side close to the metal sheet abut against the metal sheet to limit the moving direction of the metal sheet, so that the horizontal position of the metal sheet is not easily changed during movement. The rotating shafts of the guide wheels 32 are horizontally arranged on the upper and lower sides of the metal sheet respectively. The cleaning belt 34 is made of cotton in this embodiment. The cleaning belt 34 is sleeved on the two guide wheels 32 on the same side of the metal sheet, so that the two guide wheels 32 can rotate synchronously. The projections of the cleaning belts 34 on the metal sheet on the horizontal direction are separated. The cleaning belt 34 can abut against the end surface of the metal sheet. The rotating direction of the cleaning belt 34 is arranged at an angle with the moving direction of the metal sheet. The transmission direction of the cleaning belt 34 on the side close to the metal sheet is inclined towards the direction away from the stamping assembly 2. The angle away from the stamping assembly 2 is less than ninety degrees and greater than zero degrees, so that the cleaning belt 34 can adhere and carry away the debris on the metal sheet when the metal sheet and the cleaning belt 34 move relatively.

[0034] As shown, Figure 3 In order to remove the debris on the cleaning belt 34 after the cleaning belt 34 separates from the metal sheet, the cleaning frame 31 is provided with a flushing assembly 4 for flushing the cleaning belt 34. The flushing assembly 4 is arranged in the two groups of cleaning belts 34 respectively. The flushing assembly 4 comprises a spray head 41, a water pump 42 for driving the lubricating oil to flow towards the spray head 41, and an oil tank 43 for storing the lubricating oil. The oil tank 43 is arranged on the bottom surface of the cleaning tank. The oil tank 43 is arranged with an upper opening to receive the lubricating oil dripping from the cleaning belt 34. The water pump 42 is arranged in the oil tank 43. The water outlet of the water pump 42 is connected with the spray head 41. The spray head 41 is arranged in the inner cavity of the cleaning belt 34. The water outlet of the spray head 41 is directed towards the inner cavity bottom wall of the cleaning belt 34. The upper projection view of the spray head 41 is separated from the metal sheet and located in the oil tank 43, so that the spray head 41 can flush the debris adhered to the cleaning belt 34 with the lubricating oil when spraying the lubricating oil towards the cleaning belt 34, so that the debris on the cleaning belt 34 does not easily affect the surface quality of the metal sheet.

[0035] After the lubricating oil is sprayed onto the cleaning belt 34, the cleaning belt 34 comes into contact with the metal sheet and coats it with lubricating oil. A large amount of lubricating oil can also affect subsequent stamping. Therefore, four squeezing rollers 36 are also provided within the cleaning frame 31, with each squeezing roller 36 connected to a cleaning belt 34. The squeezing rollers 36 are positioned on the inside and outside of the cleaning belt 34, and are positioned below the cleaning belt 34. Together, the squeezing rollers 36 clamp and squeeze the cleaning belt 34, squeezing it to remove excess lubricating oil. All four squeezing rollers 36 are positioned above the oil bin 43, allowing the lubricating oil squeezed from the cleaning belt 34 to fall back into the oil bin 43 for subsequent use.

[0036] Since the water pump 42 continues to pump the lubricating oil after the debris adhered to the cleaning belt 34 is driven by the lubricating oil to fall into the oil bin 43, and the debris will affect the normal operation of the water pump 42, a filter plate 45 is vertically provided in the oil bin 43. The filter plate 45 divides the inner cavity of the oil bin 43 into two parts. The water pump 42 is provided with one side of the filter plate 45, and the lubricating oil dripping from the cleaning belt 34 falls on the side of the filter plate 45 away from the partition plate.

[0037] In order to reduce the scratches on the surface of the metal sheet caused by the cleaning belt 34 when it moves the debris, a number of reduction rings 37 are provided on the cleaning belt 34 along its length. The reduction rings 37 can set the cleaning belt in sections and reduce the diameter of adjacent sections, so that the debris can move to the reduction rings 37, thereby reducing the amount of debris between the cleaning belt 34 and the metal sheet, so that the relative movement between the cleaning belt 34 and the metal sheet is less likely to cause scratches on the surface of the metal sheet.

[0038] In order to allow the dripping lubricating oil to fall better into the oil bin 43, a guide funnel 44 is further provided above the oil bin 43. The lower end of the guide funnel 44 is located in the oil bin 43 so that the lubricating oil can flow into the oil bin 43. The upper end of the guide funnel 44 is provided close to the lower end of the cleaning belt 34, so that the lubricating oil dripping from the cleaning belt 34 can directly flow into the guide funnel 44 and then flow into the oil bin 43.

[0039] like Figure 2As shown, since the larger debris attached to the metal sheet will contact the limiting wheel 35 when the metal sheet enters the cleaning chamber, which will cause a certain mark on the metal sheet, therefore, the position of the cleaning frame 31 for inputting the metal sheet is also provided with a blowing assembly 5, the blowing assembly 5 includes a plurality of air nozzles 51 and a gas flow pump 52 for driving the air flow, the gas pump 52 is arranged outside the cleaning frame 31, and the gas outlet of the gas pump 52 is communicated with the air nozzle 51. The air nozzles 51 are arranged on the upper and lower sides of the metal sheet respectively, and the gas outlet of the air nozzle 51 is inclined towards the metal sheet and away from the cleaning frame 31, so that the flowing gas is used to blow the metal sheet surface, so that part of the debris attached to the metal sheet surface is blown off.

[0040] The implementation principle of the embodiment is that the metal sheet is input from the cleaning frame 31 away from the through hole 311 of the stamping assembly 2 into the cleaning frame 31, the blowing assembly 5 blows away part of the debris attached to the surface of the metal sheet when the metal sheet moves, then the cleaning belt 34 passes through the surface of the metal sheet to remove the debris on the surface of the metal sheet, and then the metal sheet enters the stamping assembly 2 for continuous stamping. After the cleaning belt 34 passes through the surface of the metal sheet, the spray head 41 sprays lubricating oil towards the cleaning belt 34 to flush the debris attached to the cleaning belt 34, and then the most of the lubricating oil attached to the cleaning belt 34 is squeezed out and falls into the oil chamber 43 when the squeezing roller 36 squeezes the cleaning belt 34.

[0041] The embodiments of the specific embodiment are the preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A precision sheet metal blanking apparatus, characterized by: The utility model provides a stamping device, including base (1), set up on base (1) stamping assembly (2) and set up on base (1) and clean up the cleaning assembly (3) of scrap, stamping assembly (2) includes setting up on base (1) fixed mould (21), vertical slip on base (1) movable die (22) and the vertical drive (23) of movable die (22) vertical movement are driven, movable die (22) and fixed mould (21) close mould and stamp to metal sheet, the drive end of vertical drive (23) is connected with movable die (22); The cleaning assembly (3) includes a cleaning frame (31), a plurality of guide wheels (32) rotatably connected in the cleaning frame (31), a cleaning drive (33) for driving the guide wheels (32) to rotate, and a cleaning belt (34) simultaneously sleeved on the guide wheels (32). The metal sheet is arranged in the cleaning frame (31) and moves horizontally. The cleaning belt (34) is arranged on the upper and lower sides of the metal sheet respectively and abuts against and slides relative to the metal sheet. The moving direction of the cleaning belt (34) is arranged at an angle with the moving direction of the metal sheet, and the angle is less than 90 degrees and greater than 0 degree. The transmission direction of the side wall of the cleaning belt (34) close to the metal sheet is inclined away from the stamping assembly (2).

2. The precision metal sheet punching device according to claim 1, wherein: The cleaning belt (34) is made of cotton. The cleaning frame (31) is provided with a flushing assembly (4) for flushing the cleaning belt (34). The flushing assembly (4) includes a spray head (41), a water pump (42) for driving lubricating oil to move towards the spray head (41), and an oil tank (43) for storing lubricating oil. The oil tank (43) is arranged with an upper opening. The spray head (41) is arranged in the cleaning belt (34) and the water outlet of the spray head (41) faces the inner cavity bottom surface of the cleaning belt (34). The spray head (41) is arranged above the opening of the oil tank (43). The water pump (42) is arranged in the oil tank (43).

3. The precision metal sheet punching device according to claim 2, wherein: A plurality of extrusion rollers (36) are arranged in the cleaning frame (31). The two extrusion rollers (36) are arranged on the inner and outer sides of the lower cleaning belt (34). The two extrusion rollers (36) are close to each other and jointly clamp and extrude the cleaning belt (34). The extrusion rollers (36) are arranged above the oil tank (43). The extrusion rollers (36) are arranged on the side of the spray head (41) facing the conveying direction of the cleaning belt (34).

4. The precision metal sheet punching device according to claim 1, wherein: A plurality of reducing rings (37) are arranged on the cleaning belt (34) along the length direction of the cleaning belt (34).

5. The precision sheet metal blanking apparatus of claim 2, wherein: The oil tank (43) is provided with a guide hopper (44). The lower end of the guide hopper (44) communicates with the oil tank (43). The upper end of the guide hopper (44) is arranged below the cleaning belt (34) and close to the spray head (41).

6. The precision sheet metal blanking apparatus of claim 5, wherein: The oil tank (43) is provided with a filter plate (45) for filtering impurities. The filter plate (45) divides the inner cavity of the oil tank (43). The guide hopper (44) is arranged on one side of the filter plate (45). The water pump (42) is arranged on the other side of the filter plate (45).

7. The precision sheet metal blanking apparatus of claim 1, wherein: A plurality of limiting wheels (35) for limiting the position of the metal sheet are arranged in the cleaning frame (31), and the limiting wheels (35) are arranged on the upper and lower sides of the metal sheet and abut against the metal sheet.

8. The precision metal sheet punching device according to claim 1, wherein: A blowing assembly (5) for inputting the position of the metal sheet is arranged on the cleaning frame (31), the blowing assembly (5) comprises a plurality of air nozzles (51) and an air pump (52) for driving the flow of air, the air nozzles (51) are arranged on the upper and lower sides of the metal sheet, and the air outlets of the air nozzles (51) are inclined towards the metal sheet and away from the cleaning frame (31).

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