Angle steel punching device with self-cleaning function

By setting feeding control components and temperature control components in the angle steel punching device, the difficulty of controlling length of angle steel and high temperature in the prior art is solved, and the rapid cutting and self-cleaning functions are realized, which improves the safety and efficiency of the process.

CN113351766BInactive Publication Date: 2025-02-28JIANGYIN KEYANG MASCH EQUIP CO LTD
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Patent Information

Application Number
CN202110698056.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-06-23
Publication Date
2025-02-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing angle steel punching devices cannot quickly control the length of angle steel, and are prone to high temperatures during operation, resulting in machine damage and punching deviation.

Method used

An angle steel punching device with a self-cleaning function is designed, and a feed control assembly and a temperature control assembly are provided. The feeding control component realizes stable transmission and cutting of angle steel through a motor-driven transmission system, and the temperature control component keeps the internal temperature of the device within a safe range through the temperature sensing chamber and the flushing system.

Benefits of technology

The rapid control and self-cleaning function of angle steel length is realized, avoiding machine damage and punching deviation caused by high temperature, and improving process safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an angle steel punching device with a self-cleaning function, comprising a punching machine, characterized in that: a feeding control component is arranged at the rear of the punching machine, a temperature control component is arranged at the front of the punching machine, the feeding control component comprises a motor, a transmission shaft is coaxially installed at the right end of the motor, a transmission wheel is fixedly installed above the transmission shaft, a transmission gear is meshed and connected below the transmission wheel, a feeding roller is fixedly installed below the transmission gear, a transmission roller is slidably connected below the feeding roller, a connecting rod is connected to the internal bearing of the transmission roller, a transmission rod is connected to the other end bearing of the connecting rod, a sliding block is fixedly installed below the transmission rod, a first pneumatic cylinder is slidably connected below the sliding block, a transmission pipeline is fixedly installed below the first pneumatic cylinder, and the invention has the characteristics of controlling cutting length and overheating protection.
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Description

Technical Field

[0001] The invention relates to the technical field of punching, in particular to an angle steel punching device with a self-cleaning function. Background Art

[0002] In the known technical field, angle steel is a common form of mechanical structure and is widely used in various industrial fields. In actual manufacturing, it is usually necessary to punch various hole types on the angle steel to cooperate with subsequent installation and manufacturing processes.

[0003] However, the existing angle steel punching device cuts the angle steel after punching it, and cannot quickly control the length of the angle steel so that workers can get the required length in time, which is of poor practicality; at the same time, the existing angle steel punching device is prone to high temperature during operation, resulting in machine damage and punching deviation. Therefore, it is necessary to design an angle steel punching device with self-cleaning function that controls cutting length and overheat protection. Summary of the invention

[0004] The object of the present invention is to provide an angle steel punching device with a self-cleaning function to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an angle steel punching device with a self-cleaning function, characterized in that the angle steel punching device is provided with a feeding control component and a temperature control component.

[0006] According to the above technical solution, the feeding control assembly includes a motor, a transmission shaft is coaxially installed on the right end of the motor, a transmission wheel is fixedly installed above the transmission shaft, a transmission gear is meshingly connected below the transmission wheel, a feed roller is fixedly installed below the transmission gear, and a transmission roller is slidably connected below the feed roller.

[0007] According to the above technical solution, the internal bearing of the transmission roller is connected to a connecting rod, the other end bearing of the connecting rod is connected to a transmission rod, a slider is fixedly installed below the transmission rod, a first pneumatic cylinder is slidably connected below the slider, a transmission pipeline is fixedly installed below the first pneumatic cylinder, a one-way valve is fixedly connected above the transmission pipeline, and the pipeline above the one-way valve is connected to the first control pneumatic cylinder.

[0008] According to the above technical solution, a control rod is slidably connected inside the first control pneumatic cylinder, a ventilation duct is arranged inside the control rod, a first live contact is fixedly installed above the control rod, a baffle is slidably connected below the control rod, a first control resistor is slidably connected above the first live contact, the left bolt of the first control resistor is fixed on the angle steel punching device, and a cutting machine is electrically connected in front of the first control resistor.

[0009] According to the above technical solution, the temperature control component includes a temperature sensing chamber, a second baffle is provided inside the temperature sensing chamber, a valve is fixedly installed below the second baffle, a flushing pipe is slidably connected below the valve, a water pump is fixedly installed at the left end of the flushing pipe, the left end of the water pump is connected to a water tank, the upper pipe of the flushing pipe is connected to a nozzle, a partition is connected to the bearing at the connection between the flushing pipe and the nozzle, a coil spring is provided inside the partition, and concentrated ammonia water is provided inside the temperature sensing chamber.

[0010] According to the above technical solution, a second live contact is fixedly mounted on the left end of the second baffle, a second control resistor is slidably connected to the left end of the second live contact, and a punch is electrically connected above the second control resistor.

[0011] According to the above technical solution, a one-way control valve is fixedly installed on the right side of the transmission pipeline, a second control pneumatic cylinder is connected to the pipeline above the one-way control valve, a third control resistor is slidably connected above the second control pneumatic cylinder, the third control resistor is electrically connected to the water pump, and a stamping slope is set at the right end of the flushing pipeline.

[0012] According to the above technical solution, a control chamber is installed on the internal bearing of the one-way control valve, a fixed rod is fixedly installed inside the control chamber, a movable rod is connected to the bearing at the other end of the fixed rod, a top block is fixedly installed at the other end of the movable rod, the right side pipe of the control chamber is connected to the transmission pipe, a cylinder is fixedly installed at the right end of the transmission pipe, a pressure plate is fixedly installed above the cylinder, and the pressure plate is fixedly installed below the stamping slope.

[0013] According to the above technical solution, the bearings on both sides of the driving roller are connected with telescopic rods, a pressure spring is fixedly installed inside the telescopic rod, and the other end of the pressure spring is welded to the angle steel punching device.

[0014] According to the above technical solution, a collecting bin is provided below the stamping slope.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: by providing a feeding control component, the present invention makes the device more stable in transmitting the angle steel and can cut the angle steel to the required length; by providing a temperature control component, the device can control the temperature inside the angle steel punching device so that it does not exceed the specified temperature at all times, and cool the device when it exceeds the specified temperature, thereby avoiding dangerous accidents caused by high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall top view structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the feeding control assembly of the present invention;

[0020] Figure 4 It is a schematic cross-sectional view of the feeding control assembly of the present invention;

[0021] Figure 5 is a schematic cross-sectional view of the temperature control assembly of the present invention;

[0022] Figure 6 The present invention Figure 5 A partial enlarged schematic diagram of the middle A area;

[0023] In the figure: 2, motor; 3, transmission wheel; 4, transmission shaft; 5, transmission gear; 6, feed roller; 7, transmission roller; 8, telescopic rod; 9, pressure spring; 10, connecting rod; 11, transmission rod; 12, slider; 13, transmission pipeline; 14, one-way valve; 15, first control pneumatic cylinder; 16, control rod; 17, ventilation pipeline; 18, first control resistor; 19, first live contact; 20, one-way control valve; 21, fixed rod; 22, Movable rod; 23, control chamber; 24, second control pneumatic cylinder; 25, third control resistor; 26, cutting machine; 27, punching machine; 28, second live contact; 29, water pump; 30, nozzle; 31, flushing pipe; 32, pressure plate; 33, cylinder; 34, transmission pipe; 35, partition; 36, temperature sensing chamber; 37, punching ramp; 38, second baffle; 39, valve; 40, second control resistor; 41, first pneumatic cylinder. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-4The present invention provides a technical solution: an angle steel punching device with a self-cleaning function, characterized in that: the angle steel punching device is provided with a feeding control component and a temperature control component; by providing the feeding control component, the device can transmit the angle steel more stably and can cut the angle steel to the required length; by providing the temperature control component, the device can control the temperature inside the angle steel punching device to not exceed the specified temperature at all times, and cool the device when it exceeds the specified temperature, so as to avoid dangerous accidents caused by high temperature.

[0026] The feeding control assembly includes a motor 2, a transmission shaft 4 is coaxially mounted on the right end of the motor 2, a transmission wheel 3 is fixedly mounted above the transmission shaft 4, a transmission gear 5 is meshingly connected to the bottom of the transmission wheel 3, a feed roller 6 is fixedly mounted below the transmission gear 5, and a transmission roller 7 is slidably connected to the bottom of the feed roller 6; the angle steel enters between the feed roller 6 and the transmission roller 7, and the motor 2 drives the transmission shaft 4 to rotate, and the transmission shaft 4 drives the transmission wheel 3 to rotate, thereby driving the transmission gears 5 on both sides to start rotating, so that the feed roller 6 rotates to uniformly transport the angle steel to the front for punching.

[0027] The inner bearing of the transmission roller 7 is connected to a connecting rod 10, and the other end bearing of the connecting rod 10 is connected to a transmission rod 11, a slider 12 is fixedly installed below the transmission rod 11, and a first pneumatic cylinder 41 is slidably connected below the slider 12, and a conveying pipe 13 is fixedly installed below the first pneumatic cylinder 41, and a one-way valve 14 is fixedly connected above the conveying pipe 13, and a first control pneumatic cylinder 15 is connected to the upper pipe of the one-way valve 14; when the feed roller 6 conveys the angle steel forward, it drives the transmission roller 7 below to start rotating, and the transmission roller 7 drives the connecting rod 10 to start rotating. The connecting rod 10 enables the transmission rod 11 to drive the slider 12 to reciprocate up and down in the first pneumatic cylinder 41, and the effect of pumping air below is achieved. The gas passes through the conveying pipe 13 below and the one-way valve 14 into the first control pneumatic cylinder 15. Through the above steps, when the feed roller 6 conveys the angle steel, it is synchronized with the first control pneumatic cylinder 15 to control the next process.

[0028] The first control pneumatic cylinder 15 is internally slidably connected with a control rod 16, and an air duct 17 is arranged inside the control rod 16. A first live contact 19 is fixedly installed above the control rod 16, and a baffle is slidably connected below the control rod 16. A first control resistor 18 is slidably connected above the first live contact 19. The left bolt of the first control resistor 18 is fixed to the angle steel punching device, and a cutting machine 26 is electrically connected in front of the first control resistor 18. When the air pressure in the first control pneumatic cylinder 15 increases, the baffle and the control rod 16 slide upward, so that the first live contact 19 above the control rod 16 touches the first control resistor 18, and the cutting machine 26 is turned on to cut the angle steel, and the feed roller 6 is stopped from conveying the angle steel to prevent the cutting machine 26 from being cut. 26 is damaged. When the control rod 16 hits the first control resistor 18, the baffle will continue to slide upward, open the ventilation duct 17 in the control rod 16, discharge the internal air pressure to lower the control rod 16, disconnect the power supply of the cutter 26, and the cutter 26 is retracted by its own spring. The feed roller 6 continues to work and starts punching. The height is adjusted by rotating the bolt at the left end of the first control resistor 18 to quickly control the required cutting length. Through the above steps, the uniform transmission of the angle steel is achieved while the cutting of the angle steel is synchronously controlled. The height of the first control resistor 18 can be quickly adjusted to the required cutting length, which is convenient for workers to quickly respond to the different lengths of the angle steel during construction, thereby speeding up the construction efficiency and speed.

[0029] The temperature control component includes a temperature sensing chamber 36, a second baffle 38 is arranged inside the temperature sensing chamber 36, a valve 39 is fixedly installed below the second baffle 38, a flushing pipe 31 is slidably connected below the valve 39, a water pump 29 is fixedly installed at the left end of the flushing pipe 31, a water tank is connected to the left end of the water pump 29, a nozzle 30 is connected to the upper pipe of the flushing pipe 31, a baffle 35 is connected to the bearing at the connection between the flushing pipe 31 and the nozzle 30, a coil spring is arranged inside the baffle 35, and concentrated ammonia water is arranged inside the temperature sensing chamber 36; when the temperature in the device is too high, the concentrated ammonia water vaporizes and the volume increases, pressing down the second baffle 38, driving the valve 30 below 9 moves downward to block the flushing pipe 31, the water pump 29 pumps out the water in the water tank to push the upper partition 35 upward, and water flows out from the nozzle 30 to cool the punching hole and the device. When the temperature returns to normal levels, the volume of concentrated ammonia water dissolved in water becomes smaller, driving the second baffle 38 to move upward, opening the valve 39, and the water flows normally through the flushing pipe 31 to flush the device. The above steps can be achieved, according to whether the temperature inside the device is too high, the temperature sensing chamber 36 controls the cooling of the device, and the concentrated ammonia water absorbs heat when vaporizing, so that when the temperature inside the device is slightly too high, it can be cooled quickly, thereby ensuring the safety of the temperature inside the device.

[0030] A second charged contact 28 is fixedly installed on the left end of the second baffle 38, and a second control resistor 40 is slidably connected to the left end of the second charged contact 28. A punch 27 is electrically connected above the second control resistor 40. When the second baffle 38 moves downward, it drives the second charged contact 28 to move downward and leave the second control resistor 40, so that the power to the punch 27 is cut off, and the punch 27 is brought back to its original position by its own spring, so that when the temperature sensing chamber 36 detects that the high temperature begins to cool down, the punch 27 can stop working in time to avoid errors in punching due to high temperature and avoid waste of resources.

[0031] A one-way control valve 20 is fixedly installed on the right side of the transmission pipeline 13, and a second control pneumatic cylinder 24 is connected to the upper pipeline of the one-way control valve 20. A third control resistor 25 is slidably connected to the upper side of the second control pneumatic cylinder 24. The third control resistor 25 is electrically connected to the water pump 29, and a stamping slope 37 is set at the right end of the flushing pipeline 31; when the transmission pipeline 13 supplies air to the first control cylinder 15, it also supplies air to the second control cylinder 24, driving the control rod 16 in the second control cylinder 24 to move upward, driving the control rod 16 to touch the third control resistor 25, turning on the water pump 29, and starting to flush away the waste below the stamping slope 37, thereby realizing automatic cleaning inside the device.

[0032] The one-way control valve 20 has a control bin 23 installed on its internal bearing, a fixed rod 21 fixedly installed inside the control bin 23, a movable rod 22 connected to a bearing at the other end of the fixed rod 21, a top block fixedly installed at the other end of the movable rod 22, a transmission pipe 34 connected to the right pipe of the control bin 23, a cylinder 33 fixedly installed on the right end of the transmission pipe 34, a pressure plate 32 fixedly installed above the cylinder 33, and the pressure plate 32 fixedly installed below the stamping inclined surface 37; when the angle steel is punched and cut and transported away, the waste formed by the punching still remains below the stamping inclined surface 37 after being flushed, so that the weight above the pressure plate 32 increases, driving the cylinder 33 below to move downward, and transporting the waste to the control bin 23 through the transmission pipe 34. The air pressure inside the control chamber 23 increases, driving the movable rod 22 to start rotating and driving the top block to rotate to the left, so that the one-way control valve 20 moves to the left, and the one-way control valve 20 becomes normally open, driving the second control cylinder 24 to move to the left, so that the control rod 16 in the second control cylinder 24 is always in contact with the third control resistor 25, and slides to the left on the third control resistor 25, thereby reducing the resistance and increasing the power of the water pump 29. By increasing the power and continuously flushing water, all remaining waste can be flushed away. The above steps can be achieved, after the angle steel is punched and cut, the formed waste and debris are automatically cleaned, and the heavier the waste, the greater the power of the water pump 29, thereby ensuring the cleanliness of the device.

[0033] The bearings on both sides of the transmission roller 7 are connected with telescopic rods 8, and pressure springs 9 are fixedly installed inside the telescopic rods 8. The other end of the pressure spring 9 is welded to the angle steel punching device; when the angle steel is fed forward through the feed roller 6, the telescopic rod 8 under the transmission roller 7 is pushed upward by the pressure spring 9 to clamp the angle steel. The pressure spring 9 can be automatically adjusted according to the thickness of the angle steel, making the angle steel more stable during feeding.

[0034] A collecting bin is provided below the stamping slope 37; when the waste materials after punching are flushed down by the flushing pipe 31 and fall into the collecting bin, the waste materials can be recycled after the water is filtered out.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An angle steel punching device with self-cleaning function, characterized in that: The angle steel punching device is provided with a feeding control component and a temperature control component; The feeding control assembly comprises a motor (2), a transmission shaft (4) is coaxially mounted on the right end of the motor (2), a transmission wheel (3) is fixedly mounted above the transmission shaft (4), a transmission gear (5) is meshingly connected below the transmission wheel (3), a feed roller (6) is fixedly mounted below the transmission gear (5), and a transmission roller (7) is slidably connected below the feed roller (6); The inner bearing of the transmission roller (7) is connected to a connecting rod (10), the other end bearing of the connecting rod (10) is connected to a transmission rod (11), a slider (12) is fixedly mounted below the transmission rod (11), a first pneumatic cylinder (41) is slidably connected below the slider (12), a transmission pipeline (13) is fixedly mounted below the first pneumatic cylinder (41), a one-way valve (14) is fixedly connected above the transmission pipeline (13), and a first control pneumatic cylinder (15) is connected to the pipeline above the one-way valve (14); The first control pneumatic cylinder (15) is slidably connected to a control rod (16) inside, a ventilation duct (17) is arranged inside the control rod (16), a first live contact (19) is fixedly installed above the control rod (16), a baffle is slidably connected below the control rod (16), a first control resistor (18) is slidably connected above the first live contact (19), the left side of the first control resistor (18) is bolted to an angle steel punching device, and the front of the first control resistor (18) is electrically connected to a cutting machine (26); When the air pressure in the first control pneumatic cylinder (15) increases, the baffle plate and the control rod (16) slide upward, so that the first live contact (19) above the control rod (16) touches the first control resistor (18), the cutting machine (26) is turned on to cut the angle steel, and the feed roller (6) stops conveying the angle steel to prevent the cutting machine (26) from being damaged. When the control rod (16) touches the first control resistor (18), the baffle plate continues to slide upward, opening the ventilation duct (17) in the control rod (16) to discharge the internal air pressure and release the control rod (16). The power supply of the cutting machine (26) is disconnected, and the cutting machine (26) is retracted by its own spring. The feeding roller (6) continues to work and starts punching. The height is adjusted by rotating the bolt at the left end of the first control resistor (18) to quickly control the required cutting length, thereby realizing uniform transmission of the angle steel and synchronously controlling the cutting of the angle steel. Moreover, by controlling the height of the first control resistor (18), the required cutting length can be quickly adjusted, which facilitates workers to quickly respond to different length requirements of the angle steel during construction, thereby speeding up the efficiency and speed of construction; The temperature control component comprises a temperature sensing chamber (36), a second baffle (38) is arranged inside the temperature sensing chamber (36), a valve (39) is fixedly installed below the second baffle (38), a flushing pipe (31) is slidably connected below the valve (39), a water pump (29) is fixedly installed at the left end of the flushing pipe (31), the left end of the water pump (29) is connected to a water tank, the upper pipe of the flushing pipe (31) is connected to a nozzle (30), a baffle (35) is connected to a bearing at the connection between the flushing pipe (31) and the nozzle (30), a coil spring is arranged inside the baffle (35), and concentrated ammonia water is arranged inside the temperature sensing chamber (36); When the temperature in the device is too high, the concentrated ammonia water vaporizes and the volume increases, pressing down the second baffle plate (38), driving the lower valve (39) to move downward to block the flushing pipe (31), and the water pump (29) pumps the water in the water tank to push the upper baffle plate (35) upward, and the water flows out from the nozzle (30) to cool the punching hole and the device. When the temperature returns to a normal level, the volume of the concentrated ammonia water dissolved in the water decreases, driving the second baffle plate (38) to move upward, opening the valve (39), and the water flows normally through the flushing pipe (31) to flush the device. Through the above steps, it can be achieved that according to whether the temperature inside the device is too high, the temperature sensing chamber (36) controls the cooling of the device, and the concentrated ammonia water absorbs heat when vaporizing, so that when the temperature inside the device is slightly too high, the temperature can be quickly cooled, thereby ensuring the safety of the temperature inside the device. A second live contact (28) is fixedly mounted on the left end of the second baffle (38), a second control resistor (40) is slidably connected to the left end of the second live contact (28), and a punch (27) is electrically connected above the second control resistor (40); When the second baffle (38) moves downward, it drives the second live contact (28) to move downward and away from the second control resistor (40), so that the punching machine (27) is powered off and the punching machine (27) is brought back to its original position by its own spring, so that when the temperature sensing chamber (36) detects high temperature and starts to cool down, the punching machine (27) can stop working in time, thereby avoiding punching errors caused by high temperature and avoiding waste of resources; A one-way control valve (20) is fixedly installed on the right side of the transmission pipeline (13); a second control pneumatic cylinder (24) is connected to the pipeline above the one-way control valve (20); a third control resistor (25) is slidably connected to the upper side of the second control pneumatic cylinder (24); the third control resistor (25) is electrically connected to a water pump (29); and a stamping slope (37) is provided at the right end of the flushing pipeline (31); The one-way control valve (20) is provided with a control chamber (23) on an internal bearing, a fixed rod (21) is fixedly installed inside the control chamber (23), the other end of the fixed rod (21) is connected to a movable rod (22) on a bearing, the other end of the movable rod (22) is fixedly installed with a top block, the right side pipeline of the control chamber (23) is connected to a transmission pipeline (34), the right end of the transmission pipeline (34) is fixedly installed with a cylinder (33), the upper part of the cylinder (33) is fixedly installed with a pressure plate (32), and the pressure plate (32) is fixedly installed below the stamping inclined surface (37); When the angle steel is punched and cut and transported away, the waste formed by the punching still remains below the punching inclined surface (37) after being flushed, which increases the weight above the pressure plate (32), driving the cylinder (33) below to move downward, and transmitting air to the control chamber (23) through the transmission pipeline (34). The air pressure inside the control chamber (23) increases, driving the movable rod (22) to start rotating and driving the top block to rotate to the left, so that the one-way control valve (20) moves to the left, and the one-way control valve (20) becomes normally open, driving the second control air cylinder (24) moves to the left, so that the control rod (16) in the second control pneumatic cylinder (24) is always in contact with the third control resistor (25), and slides to the left on the third control resistor (25), thereby reducing the resistance and increasing the power of the water pump (29). By increasing the power and continuously flushing water, all the remaining waste materials are flushed away. Through the above steps, it can be achieved that after the angle steel is punched and cut, the waste and debris formed are automatically cleaned, and the heavier the waste, the greater the power of the water pump (29), thereby ensuring the cleanliness of the device.

2. The angle steel punching device with self-cleaning function according to claim 1, characterized in that: Bearings on both sides of the transmission roller (7) are connected to telescopic rods (8), and pressure springs (9) are fixedly installed inside the telescopic rods (8).

3. The angle steel punching device with self-cleaning function according to claim 2, characterized in that: A collecting bin is provided below the stamping inclined surface (37).

Citation Information

Patent Citations

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