Feeding device for numerical control pipe bending machine

Abstract

The feeding device for the numerical control pipe bending machine comprises a vertical plate, a support and a storage hopper, the support is fixed to the upper end of the vertical plate, the storage hopper is fixed to the support and penetrates through the support, a rotating shaft is rotationally connected to the inner wall of the vertical plate, a conveying roller is fixed to the rotating shaft, and the conveying roller is fixed to the upper end of the vertical plate. An automatic clamping mechanism is arranged on the material conveying roller and is arranged below the material storage hopper, a material blocking mechanism is arranged on the side wall of the material storage hopper, the automatic clamping mechanism comprises a material receiving groove, a limiting guide rail, a clamping ring and a wedge-shaped block, a driving baffle ring is fixedly connected to the inner wall of a vertical plate through a screw rod and a nut, and the driving baffle ring is fixedly connected to the inner wall of the vertical plate through a screw rod and a nut. Sliding grooves are evenly distributed in the side walls of the two ends of the material conveying roller in the circumferential direction, driving pulleys are connected to the sliding grooves in a sliding mode, reset springs are arranged between the rotating shafts and the wedge-shaped blocks, and the material blocking mechanism comprises sliding rails, distance adjusting baffles, fixing plates and adjusting screw rods. The utility model belongs to the technical field of pipe bender feeding, and particularly relates to a feeding device for a numerical control pipe bender.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe bending machine feeding, in particular to a feeding device for a numerical control pipe bending machine. Background Art

[0002] CNC pipe bending machines are equipment used to bend pipe fittings in industrial production. With the development of technology, automated production has become the main force. In order to realize automatic loading of pipe fittings, people have adopted special loading devices instead of traditional manual loading methods. For example, the feeding mechanism of a pipe bending machine disclosed in application number CN202122112060.0 is a turntable connected by a rotation in the hopper, and a number of feeding troughs are arranged at equal intervals on the circumference and driven by a driving device to rotate. It can automatically load and convey pipe fittings, reducing the labor intensity of operators and improving production efficiency.

[0003] However, in actual use, the gap between the turntable and the inner wall of the feed hopper in the prior art is fixed, and the diameters of the pipes during the loading process are different. In order to ensure loading, the gap needs to be larger than the diameter of the pipe, which causes rolling friction between the pipe and the inner wall of the feed hopper and the inner wall of the feed trough during the rotation of the turntable. This can easily cause surface wear of the pipe, affecting the appearance quality. Moreover, due to the large gap, the noise generated by the movement of the pipe during loading is also large. For this reason, we propose a feeding device for a CNC pipe bending machine to solve the above problems. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a feeding device for a CNC pipe bending machine, which effectively solves the problem that the existing feeding device for a CNC pipe bending machine easily causes damage to the surface of the pipe and affects the quality, and solves the problem of high noise during the feeding process.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a feeding device for a CNC pipe bending machine, comprising a vertical plate, a bracket and a storage hopper, the bracket being fixed to the upper end of the vertical plate, the storage hopper being fixed on the bracket and being arranged through the bracket, a rotating shaft being rotatably connected to the inner wall of the vertical plate, a feed roller being fixed on the rotating shaft, an automatic clamping mechanism being provided on the feed roller and being arranged below the storage hopper, and a material blocking mechanism being provided on the side wall of the storage hopper.

[0006] As an improvement of this solution, the automatic clamping mechanism includes a material receiving trough, a limiting guide rail, a clamping ring and a wedge block. The material receiving trough is evenly distributed on the side wall of the feed roller along the circumferential direction. The limiting guide rail is arranged on the inner wall at both ends of the feed roller. The clamping ring is slidably connected to the limiting guide rail and passes through the feed roller. The wedge block is slidably connected to the inner wall of the feed roller along the direction of the diameter of the feed roller. The clamping ring and the side wall of the wedge block are slidably connected via a T-block.

[0007] As an improvement of this solution, a driving baffle ring is fixedly connected to the inner wall of the vertical plate by a screw and a nut, and the driving baffle ring is coaxially arranged with the feed roller. The side walls at both ends of the feed roller are evenly provided with sliding grooves along the circumferential direction, and a driving pulley is slidably connected to the sliding groove, and the driving pulley is fixed to the two ends of the wedge block, and a reset spring is provided between the rotating shaft and the wedge block.

[0008] As an improvement of this solution, the material blocking mechanism includes a slide rail, a distance-adjusting baffle, a fixed plate and an adjusting screw. The slide rail is fixed on the side wall of the storage hopper. The distance-adjusting baffle is slidably connected to the slide rail and pluggably connected to the storage hopper. The fixed plate is fixed on the side wall in the middle of the storage hopper and is arranged above the distance-adjusting baffle. The adjusting screw is threadedly connected to the fixed plate and is rotatably connected to the distance-adjusting baffle.

[0009] As an improvement of this solution, a clamping screw is provided at the bottom of the inner wall of the vertical plate, and a material guide plate is rotatably connected to the clamping screw. Guide grooves are provided on both sides of the material guide plate. The clamping screw and the guide grooves are slidingly connected, and a clamping knob is threadedly connected to the clamping screw, and the clamping knob is clamped to the material guide plate.

[0010] As an improvement of this solution, a round tube is provided in the material receiving trough, and the round tube is wrapped by a clamping ring on the side close to the feed roller. A reduction motor is provided on the side wall of the vertical plate, and the output shaft is connected to the feed roller. The clamping ring is placed on the outside of the feed roller and is provided with an anti-slip plate at one end.

[0011] As an improvement of this solution, the clamping ring and the material receiving trough are eccentrically arranged, and the return spring and the rotating shaft are perpendicularly arranged.

[0012] As an improvement of this solution, the cross section of the clamping ring is set to be a semicircular ring, the feeding roller is set to be hollow, and the cross section of the material receiving trough is set to be U-shaped.

[0013] The beneficial effects achieved by the utility model using the above structure are as follows:

[0014] 1. It is equipped with an automatic clamping mechanism. By using the driving retaining ring, the eccentrically arranged clamping ring can automatically clamp and fix the pipe when the feed roller rotates and conveys. It can also realize automatic discharge after it is in place, which can not only protect the surface of the pipe but also reduce the noise during the feeding process. It is simple to operate and has a reliable structure.

[0015] 2. The adjustable material blocking mechanism can adjust the diameter of the pipe that can pass through the hopper, and with the detachable and replaceable drive blocking ring, by changing the displacement of the wedge block and the return spring, it can adapt to the feeding of pipes of different sizes, thereby improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a feeding device for a CNC pipe bending machine proposed in the utility model;

[0017] Figure 2 This is a cross-sectional view of a feeding device for a CNC pipe bending machine proposed in the utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the main structure of this embodiment;

[0019] Figure 4 This is a schematic diagram of the internal structure of a feeding device for a CNC pipe bending machine proposed in the utility model;

[0020] Figure 5 This is a schematic structural diagram of the automatic clamping mechanism components of this embodiment;

[0021] Figure 6 for Figure 5 Schematic diagram of the internal structure of the automatic clamping mechanism.

[0022] Among them, 1. Vertical plate; 2. Bracket; 3. Storage hopper; 4. Rotating shaft; 5. Feed roller; 6. Automatic clamping mechanism; 7. Material blocking mechanism; 8. Material receiving trough; 9. Limiting guide rail; 10. Clamping ring; 11. Wedge block; 12. Drive retaining ring; 13. Slide groove; 14. Drive pulley; 15. Return spring; 16. Slide rail; 17. Adjustable distance baffle; 18. Fixed plate; 19. Adjusting screw; 20. Tightening screw; 21. Guide plate; 22. Guide groove; 23. Tightening knob; 24. Round tube; 25. Reducer motor; 26. Anti-skid plate.

[0023] 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 to the present invention. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The utility model proposes a feeding device for a CNC pipe bending machine, comprising a vertical plate 1, a bracket 2 and a storage hopper 3. The bracket 2 is fixed to the upper end of the vertical plate 1, and the storage hopper 3 is fixed on the bracket 2 and is arranged through the bracket 2. A rotating shaft 4 is rotatably connected to the inner wall of the vertical plate 1, and a feeding roller 5 is fixed on the rotating shaft 4. The feeding roller 5 is provided with an automatic clamping mechanism 6 and is arranged below the storage hopper 3. The feeding roller 5 is hollow, and a material blocking mechanism 7 is provided on the side wall of the storage hopper 3.

[0026] In order to achieve the function of clamping and fixing the round tube 24 and avoiding appearance wear caused by movement, the automatic clamping mechanism 6 includes a material receiving trough 8, a limiting guide rail 9, a clamping ring 10 and a wedge block 11. The material receiving trough 8 is evenly distributed on the side wall of the feed roller 5 along the circumferential direction. The cross-section of the material receiving trough 8 is U-shaped, and the clamping ring 10 is eccentric to the material receiving trough 8. The limiting guide rail 9 is provided on the inner wall of the two ends of the feed roller 5. The clamping ring 10 is slidably connected to the limiting guide rail 9 and passes through the feed roller 5. The wedge block 11 is slidably connected to the inner wall of the feed roller 5 along the direction of the diameter of the feed roller 5. The clamping ring 10 and the side wall of the wedge block 11 are slidably connected by a T-block, and the cross-section of the clamping ring 10 is semicircular.

[0027] like Figure 2 、 Figure 5 and Figure 6 As shown, a driving baffle ring 12 is fixedly connected to the inner wall of the vertical plate 1 by a screw and a nut, and the driving baffle ring 12 is coaxially arranged with the feed roller 5. The side walls at both ends of the feed roller 5 are evenly distributed with slide grooves 13 along the circumferential direction, and a driving pulley 14 is slidably connected to the slide groove 13, and the driving pulley 14 is fixed to the two ends of the wedge block 11. A return spring 15 is provided between the rotating shaft 4 and the wedge block 11, and the return spring 15 is perpendicular to the rotating shaft 4.

[0028] In order to realize the feeding function of adapting to round tubes 24 of different diameters, the material blocking mechanism 7 includes a slide rail 16, a distance-adjusting baffle 17, a fixed plate 18 and an adjusting screw 19. The slide rail 16 is fixed on the side wall of the storage hopper 3, the distance-adjusting baffle 17 is slidably connected to the slide rail 16 and is plugged and connected to the storage hopper 3. The fixed plate 18 is fixed on the side wall in the middle of the storage hopper 3 and is arranged above the distance-adjusting baffle 17. The adjusting screw 19 is threadedly connected to the fixed plate 18 and is rotatably connected to the distance-adjusting baffle 17.

[0029] like Figure 3 and Figure 4 As shown, a tightening screw 20 is provided at the bottom of the inner wall of the vertical plate 1, and a material guide plate 21 is rotatably connected to the tightening screw 20. Guide grooves 22 are provided on both sides of the material guide plate 21. The tightening screw 20 and the guide grooves 22 are slidingly connected. A tightening knob 23 is threadedly connected to the tightening screw 20, and the tightening knob 23 is tightened against the material guide plate 21.

[0030] like Figure 1 and Figure 6 As shown, a round tube 24 is provided in the material receiving trough 8, and the round tube 24 is wrapped by a clamping ring 10 on the side close to the feed roller 5. A reduction motor 25 is provided on the side wall of the vertical plate 1, and the output shaft is connected to the feed roller 5. An anti-skid plate 26 is provided at one end of the clamping ring 10 placed on the outside of the feed roller 5.

[0031] During specific use, a round tube 24 is added above the storage hopper 3. According to the diameter of the round tube 24, the adjusting screw 19 is rotated to push the distance adjustment baffle 17 along the slide rail 16 away from the fixed plate 18, so that the distance between the two sets of fixed plates 18 in the storage hopper 3 is reduced to that only one set of round tubes 24 can pass through at the same time. The reduction motor 25 is turned on to drive the rotating shaft 4 to rotate, and the feeding roller 5 fixed on the rotating shaft 4 rotates accordingly. When it rotates to the bottom of the storage hopper 3, a set of round tubes 24 is connected to the receiving trough 8. As the feeding roller 5 continues to rotate, when the driving pulley 14 contacts the driving baffle ring 12, the driving pulley 14 moves along the slide groove 13 to the side of the rotating shaft 4 under the action of the contour of the driving baffle ring 12, thereby driving the wedge block 11 close to the rotating shaft 4. As the wedge block 11 moves, the clamping ring 25 slidingly connected to the wedge block 11 through the T-block is clamped. 10. Under the action of the contour of the wedge block 11, the feed roller 5 is extended along the limit guide rail 9, and due to the eccentric setting between the receiving trough 8 and the clamping ring 10, the clamping ring 10 and the receiving trough 8 wrap and clamp the round tube 24. As the feed roller 5 rotates, after exceeding the range of the drive retaining ring 12, the wedge block 11 is reset under the action of the reset spring 15, so that the wedge block 11 is reset and loosened, and the round tube 24 in the receiving trough 8 can fall onto the guide plate 21. By adjusting the position of the tightening screw 20 in the guide groove 22, the conveying position of the guide plate 21 can be adjusted, and the angle and position of the guide plate 21 can be fixed by the tightening knob 23. When the diameter of the round tube 24 changes, the drive retaining ring 12 can be removed and replaced to adapt to round tubes 24 of different diameters. The above is the use process of the entire feeding device for CNC pipe bending machine.

[0032] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A feeding device for a CNC pipe bending machine, comprising a vertical plate (1), a bracket (2) and a storage hopper (3), wherein the bracket (2) is fixed to the upper end of the vertical plate (1), and the storage hopper (3) is fixed to the bracket (2) and is arranged through the bracket (2), characterized in that: A rotating shaft (4) is rotatably connected to the inner wall of the vertical plate (1), a feeding roller (5) is fixed to the rotating shaft (4), an automatic clamping mechanism (6) is provided on the feeding roller (5) and is arranged below the storage hopper (3), and a material blocking mechanism (7) is provided on the side wall of the storage hopper (3).

2. A feeding device for a CNC pipe bender according to claim 1, characterized in that: The automatic clamping mechanism (6) includes a material receiving trough (8), a limiting guide rail (9), a clamping ring (10) and a wedge block (11). The material receiving trough (8) is evenly distributed on the side wall of the feed roller (5) along the circumferential direction. The limiting guide rail (9) is arranged on the inner wall of both ends of the feed roller (5). The clamping ring (10) is slidably connected to the limiting guide rail (9) and is arranged to pass through the feed roller (5). The wedge block (11) is slidably connected to the inner wall of the feed roller (5) along the direction of the diameter of the feed roller (5). The clamping ring (10) and the side wall of the wedge block (11) are slidably connected via a T-block.

3. A feeding device for a CNC pipe bender according to claim 2, characterized in that: A driving retaining ring (12) is fixedly connected to the inner wall of the vertical plate (1) through a screw and a nut, and the driving retaining ring (12) is coaxially arranged with the feed roller (5). Slide grooves (13) are evenly distributed along the circumferential direction on the side walls of both ends of the feed roller (5). A driving pulley (14) is slidably connected to the slide groove (13), and the driving pulley (14) is fixed to both ends of the wedge block (11). A return spring (15) is provided between the rotating shaft (4) and the wedge block (11).

4. A feeding device for a CNC pipe bender according to claim 3, characterized in that: The material blocking mechanism (7) comprises a slide rail (16), a distance-adjusting baffle (17), a fixed plate (18) and an adjusting screw (19); the slide rail (16) is fixed on the side wall of the storage hopper (3); the distance-adjusting baffle (17) is slidably connected to the slide rail (16) and pluggably connected to the storage hopper (3); the fixed plate (18) is fixed on the side wall in the middle of the storage hopper (3) and is arranged above the distance-adjusting baffle (17); the adjusting screw (19) is threadedly connected to the fixed plate (18) and is rotatably connected to the distance-adjusting baffle (17).

5. The feeding device for a CNC pipe bender according to claim 4, characterized in that: A tightening screw (20) is provided at the bottom of the inner wall of the vertical plate (1), and a material guide disc (21) is rotatably connected to the tightening screw (20). Guide grooves (22) are provided on both sides of the material guide disc (21). The tightening screw (20) and the guide grooves (22) are slidably connected. A tightening knob (23) is threadedly connected to the tightening screw (20), and the tightening knob (23) is tightened against the material guide disc (21).

6. A feeding device for a CNC pipe bender according to claim 5, characterized in that: A circular tube (24) is provided in the receiving trough (8), and the circular tube (24) is wrapped around a side close to the feed roller (5) through a clamping ring (10). A reduction motor (25) is provided on the side wall of the vertical plate (1), and the output shaft is connected to the feed roller (5). An anti-slip plate (26) is provided at one end of the clamping ring (10) located outside the feed roller (5).

7. A feeding device for a CNC pipe bender according to claim 6, characterized in that: The clamping ring (10) and the material receiving trough (8) are eccentrically arranged, and the return spring (15) and the rotating shaft (4) are vertically arranged.

8. The feeding device for a CNC pipe bender according to claim 7, characterized in that: The cross section of the clamping ring (10) is arranged in a semicircular shape, the feeding roller (5) is arranged in a hollow shape, and the cross section of the receiving trough (8) is arranged in a U shape.

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