High-frequency rolling automatic screw machine

Abstract

The invention discloses a high-frequency rolling automatic screw machine which is used for solving the problems that in the prior art, due to screw accumulation, scrap iron is unevenly cleaned, and scrap iron attached to threads is difficult to clean, and comprises a base, a screw tightening mechanism and a screw feeder are installed on the base, and a U-shaped hopper is connected to a machine frame of the screw feeder. The device further comprises a screw chip removing mechanism. According to the screw machine, through the arrangement of the dispersing mechanism, screws poured in batches can be vibrated and dispersed, and the screws are spread in the limiting openings and make full contact with the bristles. Through the arrangement of the rolling belt mechanism, the screw is driven to roll in the limiting opening, while the screw rolls, bristles are used for intermittently scraping and brushing the surface of the screw and thread gaps, tiny scrap iron which is difficult to remove through traditional pure shaking and attached to threads can be effectively stripped, cleaning is deeper and more thorough, and the service life of the screw is prolonged. And the problem that scrap iron on the middle and upper layers cannot be thoroughly cleaned due to screw accumulation of a traditional shaking type filter screen is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of screw machine technology, and more specifically to a high-frequency tumbling automatic screw machine. Background Technology

[0002] With the development of automation technology, the supply and tightening of screws has evolved from the traditional manual method to an automated operation using screw feeders and tighteners, which has significantly improved assembly efficiency.

[0003] The feeding structure of existing screw feeding machines can refer to the Chinese utility model patent CN220806117U, which describes an automatic screw feeding device. In use, screws are poured into the hopper, and a motor drives a roller to rotate. When the roller rotates, it drives a pulling plate to lift the screws into a linear track with a vibration component. The linear track has a channel. After the screw enters the channel, its rod extends into the channel, and its head is limited above the channel. The vibration component moves the screw on the linear track to a designated position.

[0004] To clean iron filings carried by screws, Chinese invention patent CN109352325B provides a screw tightening device for home appliance manufacturing. It uses a vibrating small-diameter filter driven by an electromagnet inside the machine. The vibration of the filter causes iron filings such as screw burrs to fall through the mesh into the collection box below.

[0005] However, the existing technology still has the following drawbacks: 1. When screws are poured in batches and piled up on the filter screen surface, the shaking energy mainly acts on the bottom screws, and has limited effect on the upper and middle screws. As a result, the iron filings mixed in are difficult to be effectively separated and pass through the mesh, and the cleaning effect is not ideal.

[0006] 2. Tiny iron filings easily adhere to the thread gaps of screws, and simple shaking is insufficient to effectively remove them, resulting in limited cleaning effect.

[0007] Therefore, it is necessary to optimize the existing technology to solve the problems of uneven cleaning of iron filings caused by screw accumulation and difficulty in completely removing iron filings attached to the threads. Summary of the Invention

[0008] This invention provides a high-frequency tumbling automatic screw machine, which aims to solve the problems of uneven cleaning of iron filings caused by screw accumulation and difficulty in completely removing iron filings attached to the threads in the prior art by combining dispersed vibration, rolling brush scraping and negative pressure dust collection.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a high-frequency tumbling automatic screw machine, including a base, wherein a screw tightening mechanism and a screw feeder are installed on the base, the frame of the screw feeder is connected to a shaped hopper, and a screw chip removal mechanism is also included. The screw chip removal mechanism includes a dispersing mechanism, a feeding box fixedly connected to the frame for adding screws into the dispersing mechanism, a scraping mechanism, a feeding mechanism connected between the frame and the scraping mechanism for driving the scraping mechanism to rotate downwards to pour the surface screws into the shaped hopper, and a dust suction mechanism set above the dispersing mechanism for sucking up the iron filings. The dispersing mechanism includes a dispersing frame with a limiting port at the bottom. The frame is connected to a driving mechanism for driving the dispersing frame to reciprocate in a horizontal plane. The scraping mechanism includes a rolling belt mechanism with bristles fixed at intervals on its surface. The rolling belt mechanism is located below the limiting port of the dispersing frame. The screws in the dispersing frame can fall into the limiting port and contact the surface of the rolling belt mechanism.

[0010] Preferably, a feeding chute is fixed on the upper end of the feeding box near the dispersing mechanism, and a material handling mechanism is provided inside the feeding box; The material handling mechanism includes a lifting plate that is vertically and movably installed on the inner wall of the feeding box. The bottom of the lifting plate passes through the bottom of the feeding box, and a first electric telescopic rod is fixedly connected between the bottom of the lifting plate and the bottom of the frame. The upper end of the lifting plate is provided with an inclined part that slopes downward toward the material discharge chute, and a bin wall vibrator is installed on the side of the feeding box.

[0011] Preferably, the inclined part is an inclined groove structure integrally formed on the upper end of the lifting plate.

[0012] Preferably, the inclined part is a sieve plate movably disposed at the upper end of the lifting plate; The lifting plate has an internal cavity. A shaft is rotatably mounted on the upper end of the cavity near the material chute via a torsion spring. One end of the screen plate is fixedly connected to the shaft, and the other side of the screen plate slides in contact with an arc-shaped groove provided on the inner wall of the cavity. A stop part is integrally formed at the upper end of the arc-shaped groove. Under the action of the torsion spring, one end of the screen plate remains in contact with the stop part, so that the contact end of the screen plate with the stop part is higher than the rotating connection end with the lifting plate. An electromagnet is fixedly installed at the bottom of the arc-shaped groove, and an iron plate corresponding to the electromagnet is fixed at the bottom of the sieve plate.

[0013] Preferably, the lower end of the cavity is open, and insertion grooves are formed on both sides of the lower end of the cavity, and a collection box is slidably inserted into the insertion groove.

[0014] Preferably, the rolling belt mechanism further includes a base plate, the rolling belt mechanism is embedded in the surface of the base plate, and the rolling belt mechanism includes two pulleys rotatably connected to the base plate, the two pulleys are rotatably connected to a belt, the bristles are fixedly arranged on the surface of the belt, a second motor is fixedly fixed to the side of the base plate, and the output shaft of the second motor is fixedly connected to the shaft of one of the pulleys.

[0015] Preferably, a mounting plate is fixed to the side of the feed box, and a rotating shaft that is rotatably connected to the mounting plate is fixed to the side of the bottom plate. The feeding mechanism includes a second electric telescopic rod fixed to the side of the mounting plate. The telescopic end of the second electric telescopic rod is fixed with a toothed plate, and the toothed plate is meshed with a gear. The gear is fixedly connected to the rotating shaft.

[0016] Preferably, the dispersion frame is provided with partition plates at equal intervals near the bottom, and the limiting opening is formed between adjacent partition plates. The limiting opening is a long strip structure with its length direction perpendicular to the movement direction of the dispersion frame, and the upper end of the limiting opening is a U-shaped structure.

[0017] Preferably, the middle position of the partition plate is fixedly connected by a connecting shaft, the two ends of the connecting shaft are fixedly connected to the two sides of the inner wall of the dispersion frame, the dispersion frame is fixedly equipped with a third motor, and the output shaft of the third motor is fixedly connected to one end of the connecting shaft.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. The screw machine of this invention, through the setting of a dispersing mechanism, can vibrate and disperse a batch of poured screws, allowing the screws to spread out in the limiting orifice and fully contact the brush bristles. Through the setting of a rolling belt mechanism, the screws are driven to tumble within the limiting orifice. While the screws are tumbling, the brush bristles intermittently scrape the surface of the screws and the thread gaps, which can effectively remove the tiny iron filings attached to the threads that are difficult to remove by traditional simple shaking. The cleaning is more thorough and deep, effectively solving the problem of incomplete cleaning of the middle and upper layers of iron filings caused by screw accumulation in traditional shaking filters.

[0019] 2. The present invention has a periodically swinging partition plate installed in the dispersion frame of the dispersion mechanism. The connecting shaft is driven by a third motor to create an alternating height difference between the two ends of the partition plate. This allows the screws to not only roll laterally during vibration, but also slide along the length of the limiting port, which further promotes the dispersion of the screws and ensures that each screw can enter the limiting port and make full contact with the bristles, thus optimizing the cleaning effect.

[0020] 3. The material handling mechanism of this invention, through the cooperation of the lifting plate and the inclined part, can prevent too many screws from flooding into the dispersion frame at once and causing accumulation, thus ensuring the stability and efficiency of subsequent dispersion and cleaning processes. In particular, in Embodiment 2, by setting a vibrating screen plate and equipping it with a collection box, large iron filings and other impurities mixed in with the screws can be pre-screened during the feeding stage, achieving the dual functions of preliminary screening and fine cleaning, further improving the cleaning quality. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a three-dimensional structural diagram of the screw feeder of the present invention.

[0023] Figure 3 This is a schematic cross-sectional view of the screw feeder of the present invention.

[0024] Figure 4 This is a three-dimensional structural diagram of the screw chip removal mechanism of the present invention.

[0025] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.

[0026] Figure 6 This is a cross-sectional schematic diagram of the screw chip removal mechanism of the present invention.

[0027] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B.

[0028] Figure 8 This is a schematic diagram of the rolling belt mechanism of the present invention.

[0029] Figure 9 This is a schematic diagram of the quantitative feeding mechanism of the present invention.

[0030] Figure 10 This is a schematic diagram of the dust collection hood structure of the present invention.

[0031] Figure 11 This is a schematic diagram of one embodiment of the material handling mechanism of the present invention.

[0032] Figure 12 This is a schematic diagram of the circuit structure connection of the present invention.

[0033] Figure 13 This is a schematic diagram of the spring reset mechanism of the present invention.

[0034] In the diagram: 1. Base; 2. Push plate; 3. Screw tightening mechanism; 4. Screw feeder; 5. Frame; 6. Roller feeding mechanism; 7. Dust hood; 8. Material handling mechanism; 81. First electric telescopic rod; 82. Collection box; 83. Cavity; 831. Insertion slot; 84. Lifting plate; 841. Arc groove; 8410. Stop; 85. Shaft; 86. Torsion spring; 87. Screen plate; 88. Electromagnet; 89. Iron sheet; a. Inclined part; b. Receiving part; 9. Linear guide mechanism; 10. Cam mechanism; 101. Cam; 102. First motor; 11. Scraper mechanism; 111. Base plate; 112. Rolling belt mechanism; 1121. Pulley; 1122. Belt; 1123. Second motor; 113. Brush bristles; 12. U-shaped hopper; 13. Discharge chute; 14. Dispersion mechanism; 141. Guide rail; 142. Slider; 143. Dispersion frame; 144. Divider plate; 145. Limiting port; 146. Spring reset mechanism; 1461. Telescopic rod; 1462. Spring; 15. Feed box; 16. Bin vibrator; 17. Discharge mechanism; 171. Second electric telescopic rod; 172. Toothed plate; 173. Gear; 18. Vibration assembly; 19. Interface; 20. Third motor; 21. Connecting shaft; a. Inclined part; b. Receiving part. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figure 1-13 .

[0037] Example 1 A high-frequency tumbling automatic screw machine includes a base 1, a screw tightening mechanism 3 mounted on the base 1, and a screw feeder 4 mounted on the base 1. The screw feeder 4 is connected to a U-shaped hopper 12 for adding screws. In this embodiment, the screw feeder 4 includes a frame 5 fixedly connected to the base 1. A roller feeding mechanism 6 and a linear guide mechanism 9 are installed inside the frame 5. The U-shaped hopper 12 is fixedly connected to the frame 5 for adding screws into the roller feeding mechanism 6. The roller feeding mechanism 6 is used to transfer the screws into the linear guide mechanism 9. The linear guide mechanism 9 is connected to a vibration component 18. The vibration component 18 works to cause the screws to be conveyed outward through the linear guide mechanism 9 and screwed into the product by the screw tightening mechanism 3. The screw tightening mechanism 3, roller feeding mechanism 6, linear guide mechanism 9, and vibration component 18 described above are all existing structures and will not be described in detail here.

[0038] To remove iron filings carried by screws, the screw machine of the present invention further includes a screw chip removal mechanism disposed above the U-shaped hopper 12. The screw chip removal mechanism includes a feeding box 15, a dispersing mechanism 14, a scraping mechanism 11, a feeding mechanism 17, and a dust collection mechanism disposed above the dispersing mechanism 14. The feeding box 15 is fixedly connected to the frame 5 for adding screws into the dispersing mechanism 14. The dispersing mechanism 14 is used to spread the screws on the surface of the scraping mechanism 11. The scraping mechanism 11 is disposed below the dispersing mechanism 14 for cleaning the bottom and sides of the screws. The dust collection mechanism is used to suck up the iron filings during the cleaning process. The feeding mechanism 17 is connected between the frame 5 and the scraping mechanism 11 for rotating the scraping mechanism 11 after cleaning to pour the screws on the surface of the scraping mechanism 11 into the U-shaped hopper 12 below.

[0039] like Figure 2 , Figure 4 and Figure 6 As shown, a discharge chute 13 is fixed to the upper end of the feeding box 15 near the dispersing mechanism 14. A material-retrieving mechanism 8 for feeding screws into the discharge chute 13 is provided inside the feeding box 15. The material-retrieving mechanism 8 includes a lifting plate 84 vertically and movably installed on the inner wall of the feeding box 15. The bottom of the lifting plate 84 penetrates the bottom of the feeding box 15, and a first electric telescopic rod 81 is fixedly connected between the bottom of the lifting plate 84 and the bottom of the frame 5. The first electric telescopic rod 81 is used to drive the lifting plate 84 to move up and down inside the feeding box 15. The upper end of the lifting plate 84 has an inclined portion a that slopes downwards towards the discharge chute 13. A bin vibrator 16 is installed on the side of the feeding box 15. The bin vibrator 16 can be purchased and used directly from the market. In this embodiment, as... Figure 11 As shown, the inclined part a is an integrally formed inclined groove structure on the upper end of the lifting plate 84. When the lifting plate 84 slides inside the feeding box 15, a receiving part b for accommodating screws is formed between the inclined part a and the wall of the feeding box 15. When the upper end of the lifting plate 84 moves to the lower end of the feeding box 15, the screws will automatically roll into the receiving part b under the action of the bin wall vibrator 16. When the lifting plate 84 moves upward, the excess screws will overflow the receiving part b. When the lower end of the inclined part a moves to the discharge chute 13, the screws will be automatically discharged outward through the discharge chute 13 into the dispersing mechanism 14 under the action of gravity, thereby facilitating the control of the number of screws processed by the dispersing mechanism 14 each time.

[0040] like Figure 4 and Figure 8As shown, the dispersing mechanism 14 includes a dispersing frame 143 disposed on the side of the feed box 15, and a limiting opening 145 is provided at the bottom of the dispersing frame 143 to allow the screw to pass through. The scraping mechanism 11 includes a base plate 111, one end of which is rotatably connected to the side of the feed box 15, and a rolling belt mechanism 112 is embedded in the surface of the base plate 111, with brush bristles 113 fixedly fixed at intervals on the surface of the rolling belt mechanism 112. The frame 5 is connected to a drive mechanism for driving the dispersing frame 143 to reciprocate on a horizontal plane. During operation, the screws in the feeding box 15 are put into the dispersing frame 143 by the feeding mechanism 8. Then, the dispersing frame 143 is driven to reciprocate along the length of the linear guide mechanism 9 by the drive mechanism, so that the screws put into the dispersing frame 143 roll back and forth at the bottom of the dispersing frame 143 and enter the limiting port 145 and contact the rolling belt mechanism 112 below. Then, the drive mechanism is stopped and the rolling belt mechanism 112 is started. When the rolling belt mechanism 112 rolls, the screws are driven to tumble in the limiting port 145 under the action of friction. During the tumbling process, the bristles 113 intermittently pass through the limiting port 145 to clean and remove debris from the screws tumbling in the limiting port 145. After the debris removal is completed, the bottom plate 111 is rotated downward to pour the screws on the surface into the U-shaped hopper 12 below. The screws are then supplied to the roller feeding mechanism 6 through the U-shaped hopper 12.

[0041] like Figure 4 and Figure 8 As shown, the limiting port 145 is preferably a long strip structure with its length direction perpendicular to the moving direction of the dispersing frame 143, and the upper end of the limiting port 145 is a Y-shaped structure, which facilitates the screw to enter the limiting port 145 during the rolling process. When the screw enters the dispersing frame 143 and falls into the limiting port 145, the length direction of the screw can be roughly consistent with the moving direction of the dispersing frame 143 through the limiting and guiding of the limiting port 145. In this way, when the rolling belt mechanism 112 rolls, it can better drive the screw to roll in an orderly manner.

[0042] like Figures 2-4 As shown, the dust collection mechanism includes a dust collection hood 7 fixedly connected to the upper part of the dispersion frame 143, and the structure of the dust collection hood 7 is as follows. Figure 10 As shown, its side is connected to an interface 19 for connecting an external vacuum cleaner pipe, and the back is provided with a feed port 71 that slides with the discharge chute 13. When the drive mechanism drives the dispersion frame 143 to move back and forth, the dust hood 7 is fixedly connected to the upper part of the dispersion frame 143, so it moves synchronously with the dispersion frame 143. During the chip removal process, the dust suction pipe of the external vacuum cleaner connected through the interface 19 is used to promptly suck away the swept iron filings.

[0043] In some specific embodiments of this example, the top of the dust collection hood 7 is embedded with a sloping groove 72. It can be understood that the roller feeding mechanism 6 is used to lift the screw into the linear guide mechanism 9. The linear guide mechanism 9 has a channel opening. When the screw enters the channel opening, the screw cap is stuck in the upper part of the channel opening, and the screw shank is inserted into the inside of the channel opening. Under the vibration of the vibration component 18, the screw is transported along the channel opening, while the screw that does not enter the channel opening will fall back into the U-shaped hopper 12. With the setting of the sloping groove 72, when the screw falls, it can fall into the sloping groove 72 and then slide back into the U-shaped hopper 12.

[0044] like Figure 4 and Figure 5 As shown, a mounting plate 151 is fixed to the side of the feeding box 15, and a rotating shaft 114 rotatably connected to the mounting plate 151 is fixed to the side of the bottom plate 111. The unloading mechanism 17 includes a second electric telescopic rod 171 fixed to the side of the mounting plate 151. A toothed plate 172 is fixed to the telescopic end of the second electric telescopic rod 171. A gear 173 is meshed with the toothed plate 172. The gear 173 is fixedly connected to the rotating shaft 114. After the screws are cleaned, the toothed plate 172 is moved by the extension of the second electric telescopic rod 171. When the toothed plate 172 moves, it drives the gear 173 to rotate. When the gear 173 rotates, it drives the rotating shaft 114 to rotate. When the rotating shaft 114 rotates, it drives the bottom plate 111 to rotate around the mounting plate 151, causing the end of the scraping mechanism 11 away from the feeding box 15 to tilt downward, and the screws on the surface of the rolling belt mechanism 112 are poured into the U-shaped hopper 12 below. Then, the second electric telescopic rod 171 is shortened, the toothed plate 172 is driven to move in the opposite direction, and the gear 173 is driven to rotate in the opposite direction, so that the base plate 111 is rotated to the original horizontal position, in preparation for the next screw cleaning.

[0045] like Figure 2 , Figure 4 , Figure 6 As shown, the drive mechanism includes a cam mechanism 10 and a spring return mechanism 146. The cam mechanism 10 includes a first motor 102 fixedly connected to the frame 5. A cam 101 is fixed to the output shaft of the first motor 102. A push plate 2 is fixed to the side of the dispersing frame 143. The side of the cam 101 rolls in contact with the surface of the push plate 2. The spring return mechanism 146 is connected between the dispersing frame 143 and the feed box 15. During operation, the screw enters the dispersing frame 143 through the material handling mechanism 8. The output shaft of the first motor 102 rotates, driving the cam 101 to rotate. When the cam 101 rotates, it pushes the dispersing frame 143 closer to the feed box 15. Under the elastic reset action of the spring return mechanism 146, the dispersing frame 143 moves away from the feed box 15. This process is repeated, causing the dispersing frame 143 to reciprocate along the length of the linear guide mechanism 9.

[0046] like Figure 4 As shown, a slider 142 is fixed to the side of the dispersing frame 143, and a guide rail 141 is fixed to the side of the feeding box 15. The slider 142 and the guide rail 141 slide together, so that the dispersing frame 143 can slide in the length direction of the linear guide rail mechanism 9.

[0047] like Figure 4 and Figure 8 As shown, the rolling belt mechanism 112 includes two pulleys 1121 rotatably connected to the base plate 111. A belt 1122 is rotatably connected to the two pulleys 1121. Preferably, the pulleys 1121 have anti-slip teeth on their sides. Brush bristles 113 are fixed to the surface of the belt 1122. A second motor 1123 is fixed to the side of the base plate 111, and the output shaft of the second motor 1123 is fixedly connected to the shaft of one of the pulleys 1121. During operation, the second motor 1123 drives the pulleys 1121 to rotate. When the pulleys 1121 rotate, they cause the belt 1122 to roll. When the belt 1122 rolls, it causes the brush bristles 113 to move, cleaning the screws within the gap 145. Understandably, the bristles 113 are spaced apart on the surface of the belt 1122 so that when the bottom of the screw contacts the belt 1122, the belt 1122 can drive the screw to roll within the limiting port 145 through friction, adjusting the contact position between the screw and the bristles 113, so that the side of the screw can be cleaned more thoroughly.

[0048] like Figure 4 and 8 As shown, the dispersion frame 143 is provided with partition plates 144 at equal intervals near the bottom. The limiting opening 145 is formed between adjacent partition plates 144. The bottom of the partition plate 144 and the surface of the belt 1122 have a channel that allows the bristles 113 to move through. The channel provides an air inlet for the dust hood 7 and allows the swept-down iron filings to be quickly drawn away by negative pressure, preventing the iron filings from getting stuck at the bottom of the partition plate 144.

[0049] like Figure 4 and 8As shown, the middle position of the partition plate 144 is fixedly connected by a connecting shaft 21. The two ends of the connecting shaft 21 are respectively fixedly connected to the two sides of the inner wall of the dispersion frame 143. The dispersion frame 143 is fixed with a third motor 20. The output shaft of the third motor 20 is fixedly connected to one end of the connecting shaft 21. Through the setting of the connecting shaft 21 and the third motor 20, when the dispersion frame 143 vibrates back and forth, causing the screws inside to roll back and forth, the third motor 20 is started. The output shaft of the third motor 20 drives the connecting shaft 21 to drive the two ends of the partition plate 144 to swing up and down alternately in a small amplitude, so that the two ends of the partition plate 144 generate a periodic height difference, so that the screws can not only roll back and forth in the vibration direction of the dispersion frame 143, but also slide back and forth along the length direction of the limiting port 145, so that the screws can be better dispersed into the limiting port 145.

[0050] like Figure 6 and Figure 13 As shown, the spring reset mechanism 146 includes two axially sliding telescopic rods 1461 and a spring 1462 connected between the two telescopic rods 1461. The other ends of the two telescopic rods 1461 are slidably connected and fixedly connected to the feed box 15 and the dispersion frame 143, respectively.

[0051] The specific implementation principle of screw chip removal in this embodiment is as follows: In operation, the operator pours the screws to be processed into the feeding box 15, starts the bin wall vibrator 16, causing the screws to roll under vibration into the receiving portion b formed by the upper end of the lifting plate 84 and the wall of the feeding box 15. Then, the lifting plate 84 is raised by the first electric telescopic rod 81, and the screws are poured into the dispersing frame 143 of the dispersing mechanism 14 through the discharge chute 13. Subsequently, the dispersing frame 143 reciprocates at high frequency on the horizontal plane under the drive of the drive mechanism. At the same time, the third motor 20 drives the connecting shaft 21 to rotate slightly in both directions, causing the two ends of all the partition plates 144 to swing up and down periodically. Under the combined action of vibration and swinging, the screws in the dispersing frame 143 fall into the Y-shaped limiting port 145 at the bottom opening. Next, the scraping mechanism 11 below the limiting port 145 starts working. The rolling belt mechanism 112 rolls under the drive of the second motor 1123, using the friction of the belt 1122 to drive the screw inside the limiting port 145 to roll. During the rolling of the screw, the bristles 113 on the surface of the belt 1122 intermittently pass through the limiting port 145, fully scraping the screw surface and thread gaps, and removing the attached iron filings. At the same time, the dust collection hood 7 fixed above the dispersing frame 143 continuously generates negative pressure through an external vacuum cleaner, instantly sucking away the removed iron filings. After the iron filings are cleaned, the feeding mechanism 17 drives the entire scraping mechanism 11 to rotate downwards around the rotating shaft 114, so that the screw after the shavings are removed falls into the U-shaped hopper 12 below under the action of gravity.

[0052] Example 2 like Figure 6 , Figure 7 and Figure 9 As shown, the structure of Embodiment 2 is roughly the same as that of Embodiment 1, except that the material handling mechanism 8 has been further improved.

[0053] In this embodiment, the inclined part a is a sieve plate 87 set on the upper end of the lifting plate 84. The sieve plate 87 is used to perform preliminary screening of the screws to remove large iron filings and impurities mixed in with the screws.

[0054] Specifically, the lifting plate 84 has an internal cavity 83 with an open upper end. A shaft 85 is rotatably mounted on the upper end of the cavity 83 near the material chute 13 via a torsion spring 86. One end of the screen plate 87 is fixedly connected to the shaft 85, and the other end of the screen plate 87 slides in contact with the upper end of the cavity 83. Specifically, an arc-shaped groove 841 is embedded in the inner wall of the cavity 83. One end of the screen plate 87 slides in contact with the arc-shaped groove 841. A stop 8410 is integrally formed at the upper end of the arc-shaped groove 841. Under the action of the torsion spring 86, one end of the screen plate 87 remains in contact with the stop 8410, ensuring that the contact end of the screen plate 87 with the stop 8410 is higher than the rotatable connection end with the lifting plate 84. Thus, when the lifting plate 84 is vertically raised and lowered, a receiving portion b for accommodating screws is formed between the screen plate 87 and the wall of the feed box 15. Furthermore, an electromagnet 88 is fixedly installed at the bottom of the arc-shaped groove 841, and an iron plate 89 corresponding to the electromagnet 88 is fixed at the bottom of the sieve plate 87.

[0055] During operation, the first electric telescopic rod 81 retracts, causing the lifting plate 84 to move downwards. Under the action of the bin wall vibrator 16, the screws in the feed box 15 automatically roll into the receiving part b on the surface of the screen plate 87. Then, the first electric telescopic rod 81 extends, causing the lifting plate 84 to move upwards. During the upward movement of the lifting plate 84, the electromagnet 88 is intermittently energized and de-energized. The attraction force of the electromagnet 88 on the iron sheet 89 drives the higher end of the screen plate 87 to rotate downwards. The elastic force of the torsion spring 86 causes the screen plate 87 to quickly return to its original position. When the screen plate 87 rotates upwards and returns to its original position, it collides with the stop part 8410, thereby generating a vibration effect and shaking off the large pieces of iron filings attached to the screws.

[0056] To facilitate the collection of iron filings, the lower end of the cavity 83 is open, and insertion grooves 831 are formed on both sides of the lower end of the cavity 83. A collection box 82 is installed in the insertion groove 831 by sliding insertion for collecting iron filings.

[0057] It should be noted that the first electric telescopic rod 81, the second electric telescopic rod 171, the bin vibrator 16, the first motor 102, the second motor 1123, the third motor 20, and the electromagnet 88 disclosed in the above embodiments are all existing structures and can be directly purchased and used on the market. Their specific structures will not be described in detail. Furthermore, the above electrical components can be controlled by a PLC controller. Controlling the above electrical components through a PLC controller is a conventional technology and will not be described in detail here either.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A high-frequency tumbling automatic screw machine, comprising a base (1), wherein the base (1) is equipped with a screw tightening mechanism (3) and a screw feeder (4), and the frame (5) of the screw feeder (4) is connected to a U-shaped hopper (12), characterized in that: Also include screw chip removal mechanism; The screw chip removal mechanism includes a dispersion mechanism (14), a feeding tank (15) fixedly connected with the rack (5) for adding screws into the dispersion mechanism (14), a scraping mechanism (11), a discharging mechanism (17) connected between the rack (5) and the scraping mechanism (11) for driving the scraping mechanism (11) to rotate downward to pour the surface screws into the U-shaped hopper (12), and a dust collection mechanism arranged above the dispersion mechanism (14) for sucking away iron chips. The dispersion mechanism (14) includes a dispersion frame (143) with a limiting opening (145) at the bottom, the rack (5) is connected with a driving mechanism for driving the dispersion frame (143) to reciprocate in the horizontal plane, the scraping mechanism (11) includes a rolling belt mechanism (112) with bristles (113) fixedly arranged on the surface, the rolling belt mechanism (112) is arranged below the limiting opening (145) of the dispersion frame (143), and the screws in the dispersion frame (143) can fall into the limiting opening (145) and contact the surface of the rolling belt mechanism (112).

2. A high frequency tumbling automatic screw machine according to claim 1, characterized in that: The lower end of the feeding tank (15) is fixedly connected with a discharging chute (13) on one side close to the dispersion mechanism (14), and the inside of the feeding tank (15) is provided with a material taking mechanism (8). The material taking mechanism (8) includes a lifting plate (84) vertically movably installed on the inner wall of the feeding tank (15), the bottom of the lifting plate (84) penetrates the bottom of the feeding tank (15), and the bottom of the lifting plate (84) is fixedly connected with a first electric telescopic rod (81) between the bottom of the lifting plate (84) and the bottom of the rack (5). The upper end of the lifting plate (84) is provided with an inclined portion (a) inclined downward toward the discharging chute (13), and the side of the feeding tank (15) is provided with a bin wall vibrator (16).

3. A high frequency tumbling automatic screw machine according to claim 2, characterized in that: The inclined portion (a) is a chute structure integrally formed on the upper end of the lifting plate (84).

4. The automatic screw machine of claim 2, wherein: The inclined portion (a) is a sieve plate (87) movably arranged on the upper end of the lifting plate (84). The inside of the lifting plate (84) is provided with a cavity (83), the upper end of the cavity (83) is rotatably connected with a shaft (85) on one side close to the discharging chute (13) through a torsion spring (86), one end of the sieve plate (87) is fixedly connected with the shaft (85), the other side of the sieve plate (87) is in sliding contact with an arc-shaped groove (841) arranged on the inner wall of the cavity (83), the upper end of the arc-shaped groove (841) is integrally formed with a stop portion (8410), under the action of the torsion spring (86), one end of the sieve plate (87) is in contact with the stop portion (8410), so that the contact end of the sieve plate (87) and the stop portion (8410) is higher than the rotating connection end of the lifting plate (84). The bottom of the arc-shaped groove (841) is fixedly connected with an electromagnet (88), and the bottom of the sieve plate (87) is fixedly connected with an iron sheet (89) corresponding to the electromagnet (88).

5. A high frequency tumbling automatic screw machine according to claim 4, characterized in that: The lower end of the cavity (83) is open, and the lower end of the cavity (83) is formed with a plug-in groove (831), and a collection box (82) is slidably and plug-in connected in the plug-in groove (831).

6. A high frequency tumbling automatic screw machine according to claim 1, wherein: The rolling belt mechanism (112) further comprises a bottom plate (111), the rolling belt mechanism (112) is embeddedly installed on the surface of the bottom plate (111), and the rolling belt mechanism (112) comprises two belt pulleys (1121) rotationally connected with the bottom plate (111), the two belt pulleys (1121) are rollingly connected with a belt (1122), the bristles (113) are fixedly arranged on the surface of the belt (1122) at intervals, and the side surface of the bottom plate (111) is fixedly provided with a second motor (1123), and the output shaft of the second motor (1123) is fixedly connected with the shaft of one of the belt pulleys (1121).

7. A high frequency tumbling automatic screw machine according to claim 6, characterized in that: The side surface of the feeding box (15) is fixedly provided with a mounting plate (151), and the side surface of the bottom plate (111) is fixedly provided with a rotating shaft (114) rotationally connected with the mounting plate (151); The blanking mechanism (17) comprises a second electric telescopic rod (171) fixedly arranged on the side surface of the mounting plate (151), the telescopic end of the second electric telescopic rod (171) is fixedly provided with a toothed plate (172), the toothed plate (172) is meshingly connected with a gear (173), and the gear (173) is fixedly connected with the rotating shaft (114).

8. The automatic screw machine of claim 1, wherein: The dispersion frame (143) is equidistantly provided with partition plates (144) near the bottom, the adjacent partition plates (144) are formed with the limiting openings (145), the limiting openings (145) are long strip structures with the length direction perpendicular to the moving direction of the dispersion frame (143), and the upper end of the limiting opening (145) is a Y-shaped structure.

9. A high frequency tumbling automatic screw machine according to claim 8, characterized in that: The middle position of the partition plate (144) is fixedly connected through a connecting shaft (21), the two ends of the connecting shaft (21) are fixedly connected with the inner walls of the dispersion frame (143) on both sides, the dispersion frame (143) is fixedly provided with a third motor (20), and the output shaft of the third motor (20) is fixedly connected with one end of the connecting shaft (21).

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