A kind of high-speed tail cutter prevents blocking device

Abstract

The application discloses a kind of high-speed tail cutting machine's anti-blocking device, including tail cutting machine, air cylinder, gear, ratchet pawl mechanism, baffle and crank, air cylinder is fixedly connected with tail cutting machine, air cylinder output shaft is fixedly connected with connecting plate, connecting plate both ends are fixedly connected with rack respectively, the gear teeth of rack are disconnected from rack middle part, form a small gap, the gear has two, with tail cutting machine shell rotationally connected, the gear, rack are engaged, the crank has two, the two cranks are respectively driven connection with two gears by ratchet pawl mechanism, baffle has two, with tail cutting machine slidingly connected, baffle is fixedly connected with connecting rod, connecting rod other end is fixedly connected with groove plate, groove plate is provided with waist type groove, the end of crank is embedded in the waist type groove of groove plate, and is slidingly connected with groove plate.The present application is driven by air cylinder and transmission mechanism respectively to open and close two baffles, control the number of screws entering the discharging guide rail, prevent the screw from blocking the discharging guide rail.

Description

Technical Field

[0001] This invention relates to the field of fastener manufacturing and processing, and in particular to an anti-clogging device for a high-speed tail cutter. Background Technology

[0002] Screws are tools that use the physical and mathematical principles of the inclined plane, circular rotation, and friction to gradually fasten objects and machine parts. There are many types of screws, and tail-cut screws are one of the important components. The advantage of tail-cut screws over other screws is that tail-cut screws are easier to remove chips and are less likely to back out. The processing of tail-cut screws requires the use of such machines, which can cut off the tail of the screw from the part far from the end.

[0003] After being processed by the tail-cutting machine, the screws enter the feeding guide rail and then enter the collection box. However, a large number of screws enter the feeding guide rail at once, which can clog the rail and affect the operation. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-blocking device for a high-speed tail cutter, which has the advantage of preventing a large number of screws from entering the feeding guide rail at once, thus preventing congestion.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A high-speed tail-cutting machine anti-blocking device includes a tail-cutting machine, which is fixedly connected to a feeding guide rail. It also includes a cylinder, a connecting plate, a rack one, a rack two, a gear, a ratchet and pawl mechanism, a baffle one, a baffle two, a crank, a grooved plate, and a connecting rod. The cylinder is fixedly connected to the tail-cutting machine, and the connecting plate is fixedly connected to the cylinder output shaft. Rack one and rack two are respectively fixedly connected to both ends of the connecting plate. The teeth of rack one and rack two are broken off at their middle portions, forming a small gap. The gear includes gear one and gear two, which are rotatably connected to the tail-cutting machine housing. The handle includes crank one and crank two. Crank one is located to one side of the gear, and crank two is located to the side of gear two. Crank one and crank two are connected to gear one and gear two respectively via ratchet and pawl mechanisms. Baffle one and baffle two pass through the feeding guide rail and are slidably connected to the tail cutter. There are two connecting rods, the ends of which are fixedly connected to baffle one and baffle two respectively. The groove plate has a waist-shaped groove and is fixedly connected to the other end of the connecting rod. The end of the crank is embedded in the waist-shaped groove of the groove plate and is slidably connected to the groove plate. Rack one and rack two mesh with gear one and gear two respectively.

[0006] Using the above technical solution, the cylinder drives rack one and rack two to rotate gear one and gear two respectively. Under the action of the ratchet and pawl mechanism, gear one drives crank one to rotate, while crank two does not rotate. The rotation of crank one drives baffle one to move through the slotted plate and connecting rod. After crank one has rotated half a turn, baffle one moves to its maximum distance. The gap in the middle of the rack is close to the gear, and the rack does not mesh with the gear. Rack one continues to move forward, gear one does not rotate, baffle one stops moving, and the screw passes through baffle one and enters between baffle one and baffle two. The screw is blocked by baffle two. The gap of the rack passes through the gear, and the gear and the pawl move together. The racks re-engage, rack one drives gear one to rotate, crank one rotates, causing baffle one to return, blocking the feed guide rail and preventing the screws from passing behind. After crank one completes one revolution, baffle one returns to its original position. The cylinder pulls rack one, rack two returns, gear one and gear two rotate, crank one does not rotate, crank two rotates, crank two drives baffle two to move, the guide rail opens, and the screw passes through baffle two, leaving between baffle one and baffle two. After crank two completes one revolution, baffle two and rack one and rack two return to their original positions, thus allowing one screw to pass at a time, avoiding a large number of screws accumulating and blocking the guide rail, which would affect processing.

[0007] Preferably, the device also includes a turntable and a rotating shaft, the rotating shaft being rotatably connected to the tail cutter, the ratchet and pawl mechanism including a ratchet and a pawl, the ratchet and gear being fixedly connected to the rotating shaft, the turntable being rotatably connected to the rotating shaft, the pawl being hinged to the turntable, a spring being hinged between the pawl and the turntable, the ratchet and pawl meshing, and the crank being fixedly connected to the turntable.

[0008] Using the above technical solution, when the gear drives the ratchet to rotate in the direction of the pawl via the rotating shaft, the rotating shaft rotates relative to the turntable, the turntable remains stationary, and the crank does not rotate. When the ratchet rotates in the opposite direction of the pawl, the ratchet receives resistance from the pawl, thereby driving the turntable to rotate, and the turntable drives the crank to rotate.

[0009] Preferably, the side of the baffle is provided with an inclined cut.

[0010] The above technical solution is adopted to prevent the baffle from being blocked by screws when it returns and blocks the material feeding guide rail.

[0011] Preferably, the device also includes a connecting shell, which is fixedly connected to the tail cutter. The gear, rack one, and rack two are located inside the connecting shell, and the crank is located on the upper outer side of the connecting shell.

[0012] The above technical solution is adopted to prevent external damage to gears and racks. Attached Figure Description

[0013] Figure 1 This is an overall schematic diagram of the embodiment; Figure 2 This is a schematic diagram of the anti-blocking mechanism; Figure 3 This is a schematic diagram of the anti-blocking mechanism from another angle.

[0014] Reference numerals in the attached diagram: 1. Tail cutter; 2. Cylinder; 3. Connecting plate; 4. Rack 1; 5. Rack 2; 6. Gear 1; 7. Gear 2; 8. Baffle 1; 9. Baffle 2; 10. Crank 1; 11. Crank 2; 12. Groove plate; 13. Connecting rod; 14. Turntable; 15. Shaft; 16. Ratchet; 17. Pad; 18. Connecting housing. Detailed Implementation

[0015] The following description is merely a preferred embodiment of the present invention, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of the present invention should be considered within the protection scope of the present invention. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the protection scope of the present invention.

[0016] See Figure 1 -- Figure 3 A high-speed tail-cutting machine anti-blocking device includes a tail-cutting machine 1, a cylinder 2, a connecting plate 3, a rack 4, a rack 5, a gear 6, a gear 7, a ratchet and pawl mechanism, a turntable 14, a baffle 8, a baffle 9, a crank 10, a crank 11, a groove plate 12, and a connecting rod 13. The tail-cutting machine 1 is fixedly connected to a feeding guide rail. The cylinder 2 is fixedly connected to the tail-cutting machine 1. The connecting plate 3 is fixedly connected to the output shaft of the cylinder 2. The racks 4 and 5 are fixedly connected to both ends of the connecting plate 3, and the teeth of the racks 4 and 5 are broken at the middle of the rack, forming a small gap. The tail-cutting machine 1 is fixedly connected to a connecting shell 18. Gear 6 and gear 7 are located in the connecting shell 18. Gear 6 and gear 7 are rotatably connected to the outer shell of the tail-cutting machine 1 via rotating shafts 15. Ratchets 16 are fixedly connected to the rotating shafts 15 of gear 6 and gear 7 respectively. A turntable 14 is rotatably connected to the rotating shafts 15. A pawl 17 is hinged to the turntable 14, and a spring is hinged between the pawl 17 and the turntable 14. Cranks 10 and 11 are fixedly connected to the turntable 14 of gear 6 and gear 7 respectively. Baffles 8 and 9 traverse the feeding guide rail and are slidably connected to the tail-cutting machine 1. An inclined slit is provided on the side of baffle 8. There are two connecting rods 13, the ends of which are fixedly connected to baffles 8 and 9 respectively. The slot plate 12 has a waist-shaped groove. The slot plate 12 is fixedly connected to the other end of the connecting rod 13. The end of the crank is embedded in the waist-shaped groove of the slot plate 12 and is slidably connected to the slot plate 12. The first rack 4 and the second rack 5 are respectively meshed with the first gear 6 and the second gear 7.

[0017] Working principle: Cylinder 2 pushes rack 4 and rack 5 to drive gear 6 and gear 7 to rotate respectively. Gear 6 drives ratchet 16 to rotate against the direction of pawl 17 via shaft 15. Ratchet 16 receives resistance from pawl 17, thus driving turntable 14 to rotate. Turntable 14 drives crank 10 to rotate. Gear 7 drives ratchet 16 to rotate in the direction of pawl 17 via shaft 15. Shaft 15 rotates relative to turntable 14, turntable 14 remains stationary, crank 11 does not rotate. The rotation of crank 10 drives baffle 8 to move through slot plate 12 and connecting rod 13. After crank 10 completes half a turn, baffle 8 moves the maximum distance. The gap in the middle of the rack is close to that of the gear, and the rack does not mesh with the gear. Rack 4 continues to move forward, gear 6 does not rotate, baffle 8 stops moving, and the screw passes through baffle 8. The screw enters between baffle 8 and baffle 9. The screw is blocked by baffle 9. The gap of the rack passes through the gear, and the gear and rack mesh again. Rack 4 drives gear 6 to rotate, and crank 10 rotates, causing baffle 8 to return, blocking the feed guide rail and blocking the screw behind. After crank 10 completes one revolution, baffle 8 returns to its original position, the output shaft of cylinder 2 retracts, pulling rack 4, rack 5 returns, gear 6 and gear 7 rotate, crank 10 does not rotate, crank 11 rotates, crank 11 drives baffle 9 to move, the guide rail opens, and the screw passes through baffle 9 and leaves between baffle 8 and baffle 9. After crank 11 completes one revolution, baffle 9 and racks 4 and 5 return to their original positions, thus allowing one screw to pass at a time, avoiding a large number of screws accumulating and blocking the guide rail, which would affect processing.

Claims

1. A blocking device for a high-speed tail-cutting machine, comprising a tail-cutting machine (1), wherein the tail-cutting machine (1) is fixedly connected to a feeding guide rail, characterized in that, It also includes a cylinder (2), a connecting plate (3), rack one (4), rack two (5), gears, a ratchet and pawl mechanism, baffle one (8), baffle two (9), a crank, a slotted plate (12), and a connecting rod (13). The cylinder (2) is fixedly connected to the tail-cutting machine (1), and the connecting plate (3) is fixedly connected to the output shaft of the cylinder (2). Rack one (4) and rack two (5) are respectively fixedly connected to both ends of the connecting plate (3). The teeth of rack one (4) are broken from the middle, and the teeth of rack two (5) are broken from the middle, forming a small gap. The gears include gear one (6) and gear two (7). Gear one (6) and gear two (7) are rotatably connected to the outer shell of the tail-cutting machine (1). The cranks include crank one (10) and crank two (11). The crank one (10) is positioned... On the side of gear 1 (6), crank 2 (11) is located on the side of gear 2 (7). Crank 1 (10) and crank 2 (11) are connected to gear 1 (6) and gear 2 (7) respectively through ratchet and pawl mechanism. Baffle 1 (8) and baffle 2 (9) pass through the feeding guide rail. Baffle 1 (8) and baffle 2 (9) are slidably connected to tail cutter (1). There are two connecting rods (13), and their ends are fixedly connected to baffle 1 (8) and baffle 2 (9) respectively. The groove plate (12) has a waist-shaped groove. The groove plate (12) is fixedly connected to the other end of the connecting rod (13). The end of the crank is embedded in the waist-shaped groove of the groove plate (12) and is slidably connected to the groove plate (12). Rack 1 (4) and rack 2 (5) are meshed with gear 1 (6) and gear 2 (7) respectively.

2. The anti-blocking device for a high-speed tail cutter according to claim 1, characterized in that, It also includes a turntable (14) and a rotating shaft (15). The rotating shaft (15) is rotatably connected to the tail cutter (1). The ratchet and pawl mechanism includes a ratchet (16) and a pawl (17). The ratchet (16) and gear are fixedly connected to the rotating shaft (15). The turntable (14) is rotatably connected to the rotating shaft (15). The pawl (17) is hinged to the turntable (14). A spring is hinged between the pawl (17) and the turntable (14). The ratchet (16) and the pawl (17) mesh with each other. The crank is fixedly connected to the turntable (14).

3. The anti-blocking device for a high-speed tail cutter according to claim 1, characterized in that, The side of the baffle (8) is provided with an inclined cut to prevent the baffle (8) from being blocked by the screw when it returns to block the feeding guide rail.

4. The anti-blocking device for a high-speed tail cutter according to claim 1, characterized in that, It also includes a connecting shell (18), which is fixedly connected to the tail cutter (1). The gear, rack one (4) and rack two (5) are located inside the connecting shell (18), and the crank is located on the upper part of the outer side of the connecting shell (18).

Images