Discharging hopper of nut tapping machine

By designing a rotatable cover and transmission mechanism, the problem of nut blockage was solved, automatic unblocking of the discharge hopper was achieved, the operation difficulty was simplified, and the smoothness and efficiency of nut discharge were improved.

CN224182242UActive Publication Date: 2026-05-01HAIYAN COUNTY YUANHE STANDARD PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAIYAN COUNTY YUANHE STANDARD PARTS CO LTD
Filing Date
2025-05-29
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Nuts are prone to clogging in the tapping machine's hopper, causing uneven feeding and requiring frequent manual unclogging, which is inconvenient.

Method used

A discharge hopper for a nut tapping machine was designed, which uses a rotatable cover plate and a transmission mechanism. The screw drives the rotating handle and the threaded cylinder to realize the automatic opening and closing of the cover plate, simplifying the unloading process.

Benefits of technology

It facilitates automatic hopper clearing, reduces the difficulty of manual intervention, and improves the smoothness and efficiency of nut feeding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a discharge hopper of a nut tapping machine, which is provided with a machine body, a discharge port of the machine body is fixedly connected with the discharge hopper, the discharge hopper comprises a cylindrical material cavity and a discharge pipe integrally formed with the material cavity, two opposite bottom surfaces of the material cavity are respectively provided with an opening, and the opening of one bottom surface of the material cavity is hinged with a cover plate. A threaded barrel is hinged to the upper portion of the side wall of the material cavity, the rotating axis of the threaded barrel penetrates through the material cavity in the left-right direction, the threaded barrel is in threaded connection with a screw, the end of the screw is fixedly connected with a rotating handle, pressing pieces are hinged to the left side and the right side of the material cavity respectively, and the rotating axes of the pressing pieces are located in the vertical direction; transmission mechanisms are arranged between the threaded cylinder and the pressing pieces on the left side and the right side. The material cavity cover plate is pressed by the rotating handle at the end part of the screw rod and the pressing plate, so that the cover plate tightly covers the opening in the side part of the material cavity, and when the hopper is blocked, the screw rod can be screwed and rotated to separate the rotating handle and the pressing plate from the cover plate, so that the cover plate is opened, and the material cavity is dredged.
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Description

A discharge hopper for a nut tapping machine Technical Field

[0001] This utility model relates to the field of fastener manufacturing and processing, and in particular to a discharge hopper for a nut tapping machine. Background Technology

[0002] A tapping machine is a machining device that processes internal threads, screws, or threads on the inner surface of holes in various parts such as machine housings, equipment end faces, nuts, and flanges, using through holes or blind holes of different specifications. Tapping machines are also called thread tapping machines, automatic tapping machines, etc.

[0003] After the nut blank is processed by the tapping machine, it falls onto the guide rail of the tapping machine, and then falls along the guide rail through the outlet of the tapping machine onto the material platform. Usually, a hopper is set at the outlet, which covers the outlet. The nut comes out of the outlet and enters the hopper, and then falls from the hopper onto the material platform. The hopper guides the nut to prevent it from falling outside the material platform.

[0004] The fallen nuts often cause blockages in the hopper, affecting the discharge of nuts from the rear. Therefore, it is necessary to unclog the nuts in the hopper. To unclog them, a tool is inserted into the hopper from the discharge port and the nut is turned to fall down normally. It is more troublesome to operate from the outside. Summary of the Invention

[0005] The purpose of this utility model is to provide a discharge hopper for a nut tapping machine, which has the advantage of facilitating the unblocking of the inside of the discharge hopper.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A hopper for a nut tapping machine includes a body with a hopper fixedly connected to the discharge port on the back of the body. The hopper includes a cylindrical material cavity and a discharge pipe integrally formed with the material cavity. Openings are provided on two opposite bottom surfaces of the material cavity. A cover plate is hinged to one opening of the material cavity. The material cavity is fixedly connected to the body on the other bottom surface with its opening. The discharge port of the body is located inside the material cavity. A threaded cylinder is hinged to the upper side wall of the material cavity. The rotation axis of the threaded cylinder passes through the left-right direction of the material cavity. A screw passes through the threaded cylinder and is threadedly connected to the threaded cylinder. A handle is fixedly connected to the end of the screw. Pressure plates are hinged to the left and right sides of the material cavity, with the rotation axis of the pressure plates in the vertical direction. A transmission mechanism is provided between the threaded cylinder and the pressure plates on the left and right sides.

[0008] Using the above technical solution, during operation, the surface of the nut's handle and the surface of the pressure plate contact the cover plate of the material cavity, blocking the cover plate and covering the opening of the material cavity. When the nut becomes clogged in the material cavity, turning the screw causes the handle to separate from the cover plate. Then, turning the screw causes the handle to move away from the cover plate. At the same time, the screw drives the threaded cylinder to rotate. The rotation of the threaded cylinder drives the pressure plate to rotate through the transmission mechanism, separating the pressure plate from the cover plate. This allows the cover plate to be opened, clearing the inside of the material cavity and allowing the nut to be discharged normally. After clearing the blockage, the cover plate is closed, and the screw is turned. The screw drives the handle and the threaded cylinder to rotate, bringing the handle closer to the cover plate. At the same time, the handle drives the pressure plate to rotate and fit against the cover plate through the transmission mechanism. Then, turning the screw causes the handle to fit against the cover plate, blocking the cover plate. This method is much easier than using tools to reach into the hopper from the discharge port to clear the blockage.

[0009] Preferably, the connecting component includes a hinge rod, a slider, and a connecting rod. Each stop is hinged to a hinge rod. There are multiple sliders, located above and on the left and right sides of the material cavity, close to the rotor. The sliders are slidably connected to the outer wall of the material cavity. The movable end of the connecting rod is hinged to a slider. The slider above the material cavity and the sliders on its left and right sides are respectively fixedly connected to a connecting rod.

[0010] Using the above technical solution, when the cover is closed, the screw and threaded cylinder are in a horizontal state, and the threaded cylinder, the hinge rod hinged to the threaded cylinder, and the slider near it are on the same line. When opening the cover, turning the screw causes the handle to separate from the cover. Then, turning the screw causes the handle to move away from the cover. At the same time, the screw causes the threaded cylinder to rotate. The rotating threaded cylinder causes the slider near it to move through the hinge rod. The moving slider causes the sliders on its left and right sides to move through the connecting rod. The sliders on the left and right sides cause the pressure plate to rotate through the hinge rods connected to them, causing the pressure plate to separate from the cover, thus opening the cover. Similarly, when the cover is closed, turning the screw in the opposite direction causes the threaded cylinder, the hinge rod hinged to the threaded cylinder, and the slider to be on the same line. At the same time, the upper slider causes the sliders on the left and right sides to move. The sliders on the left and right sides then cause the pressure plate to rotate and fit against the cover through the hinge rods. Then, turning the screw causes the handle to fit against the cover.

[0011] Preferably, a guide rod is fixedly connected to the outer wall of the material cavity, the guide rod passes through the connecting rod, and the connecting rod slides along the straight line of the guide rod.

[0012] By adopting the above technical solution, the connecting rod is guided and limited, thereby increasing the stability of the movement of the connecting rod and the slider.

[0013] Preferably, the handle is a cloverleaf handle.

[0014] Using the above technical solution, the screw is turned and moved under the action of the threaded cylinder, and the bolt drives the plum blossom handle to press the cover plate of the material cavity.

[0015] Preferably, the cover plate is fixedly connected to a baffle, and the baffle has a groove.

[0016] Using the above technical solution, rotate the screw so that it is embedded in the groove, then tighten the bolt. The bolt drives the plum blossom handle to press against the baffle, thereby fixing the cover plate and blocking the opening on the side of the material cavity. Attached Figure Description

[0017] Figure 1 is an overall schematic diagram of the embodiment;

[0018] Figure 2 is a front view of the embodiment;

[0019] Figure 3 is a top view of the embodiment;

[0020] Figure 4 is a side view of the hopper;

[0021] Figure 5 is a schematic diagram of the overall hopper;

[0022] Figure 6 is an enlarged schematic diagram of hopper A.

[0023] Reference numerals in the attached drawings: 1. Machine body; 2. Material chamber; 3. Discharge pipe; 4. Cover plate; 5. Threaded cylinder; 6. Screw; 7. Rotary handle; 8. Press plate; 9. Hinge rod; 10. Slider; 11. Connecting plate; 12. Connecting rod; 13. Guide rod. Detailed Implementation

[0024] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

[0025] As shown in Figures 1 to 6, a nut tapping machine has a discharge hopper comprising a body 1. A discharge hopper is bolted to the discharge port on the back of the body 1. The discharge hopper includes a cylindrical material cavity 2 and a discharge pipe 3 integrally formed with the material cavity 2. Openings are provided on two opposite bottom surfaces of the material cavity 2. A cover plate 4 is hinged to one opening of the material cavity 2, and a baffle with a groove is integrally formed above the cover plate 4. The material cavity 2 is fixedly connected to the body 1 on its other bottom surface with an opening, and the discharge port of the body 1 is located inside the material cavity 2. A threaded cylinder 5 is hinged to the upper side wall of the material cavity 2. The rotation axis of the threaded cylinder 5 passes through the left and right directions of the material cavity 2. A screw 6 passes through the threaded cylinder 5 and is threadedly connected to the threaded cylinder 5. A plum blossom-shaped rotating handle 7 is fixedly connected to the end of the screw 6. Pressure plates 8 are hinged to the left and right sides of the material cavity 2, respectively. The rotation axis of the pressure plates 8 is located in the vertical direction. A transmission mechanism is provided between the threaded cylinder 5 and the pressure plates 8 on the left and right sides. The transmission mechanism includes hinge rods 9, sliders 10, and connecting plates 11. There are multiple sliders 10, located above and on the left and right sides of the material cavity 2, respectively, and close to the threaded cylinder 5 and the pressure plates 8. The pressure plates 8 have a connecting plate 11 integrally formed at their hinge points with the material cavity 2. There are multiple hinge rods 9, one end of each hinge rod 9 is hinged to the threaded cylinder 5 and the connecting plate 11, and the other end of the hinge rod 9 is hinged to the slider 10 it is close to. Connecting rods 12 are welded between the slider 10 above the material cavity 2 and the sliders 10 on the left and right sides. A guide rod 13 is welded to the outer wall of the material cavity 2. The guide rod 13 passes through the connecting rod 12, and the connecting rod 12 slides along the straight line of the guide rod 13.

[0026] Working principle: During operation, the cover plate 4 is closed, and the screw 6 and threaded cylinder 5 are in a horizontal state. One end of the screw 6 is embedded in the groove of the cover plate 4, and the threaded cylinder 5, the hinge rod 9 hinged to the threaded cylinder 5, and the slider 10 near it are all on the same line. Open the cover plate 4, turn the screw 6 to cause the handle 7 to separate from the cover plate 4, and then turn the screw 6 to make the handle 7 move away from the cover plate 4, and the screw 6 leaves the groove of the baffle. At the same time, the screw 6 drives the threaded cylinder 5 to rotate, and the rotating threaded cylinder 5 drives the slider 10 near it to move through the hinge rod 9. The moving slider 10 drives the sliders 10 on its left and right sides to move through the connecting rod 12. The sliders 10 on the left and right sides drive the pressure plate 8 to rotate through the hinge rod 9 connected to them, so that the pressure plate 8 separates from the cover plate 4, and the cover plate 4 can be opened to clear the inside of the material cavity 2 and allow the nut to be discharged normally. After clearing the blockage, replace the cover plate 4, then rotate and tighten the screw 6 to align the threaded cylinder 5, the hinge rod 9 connected to the threaded cylinder 5, and the slider 10. Simultaneously, the upper slider 10 moves the sliders 10 on both sides, which in turn drive the pressure plate 8 to rotate and fit against the cover plate 4 via the hinge rod 9. Then, tighten the screw 6 to make the handle 7 fit against the cover plate 4, blocking it. This method is easier than using tools to reach into the hopper through the discharge port for clearing.

Claims

1. A discharge hopper for a nut tapping machine, comprising a body (1), wherein a discharge hopper is fixedly connected to the discharge port on the back of the body (1), the discharge hopper comprising a cylindrical material cavity (2) and a discharge pipe (3) integrally formed with the material cavity (2), wherein openings are respectively provided on two opposite bottom surfaces of the material cavity (2), a cover plate (4) is hinged to the opening on one bottom surface of the material cavity (2), and the material cavity (2) is fixedly connected to the body (1) on the other bottom surface with the opening, wherein the discharge port of the body (1) is located inside the material cavity (2). A threaded cylinder (5) is hinged to the upper side wall of the material cavity (2). The rotation axis of the threaded cylinder (5) passes through the left and right directions of the material cavity (2). A screw (6) passes through the threaded cylinder (5) and is threadedly connected to the threaded cylinder (5). A rotating handle (7) is fixedly connected to the end of the screw (6). Pressure plates (8) are hinged to the left and right sides of the material cavity (2). The rotation axis of the pressure plates (8) is located in the vertical direction. A transmission mechanism is provided between the threaded cylinder (5) and the pressure plates (8) on the left and right sides.

2. The discharge hopper of a nut tapping machine according to claim 1, characterized in that, The transmission mechanism includes a hinge rod (9), a slider (10), and a connecting piece (11). There are multiple sliders (10), which are located above the material cavity (2) and on the left and right sides, respectively, and are close to the threaded cylinder (5) and the pressure plate (8). The pressure plate (8) is fixedly connected to the connecting piece (11) at its hinge point with the material cavity (2). There are multiple hinge rods (9), one end of each hinge rod (9) is hinged to the threaded cylinder (5) and the connecting piece (11), and the other end of the hinge rod (9) is hinged to the slider (10) it is close to. The slider (10) located above the material cavity (2) is fixedly connected to the sliders (10) on its left and right sides with a connecting rod (12).

3. The discharge hopper of a nut tapping machine according to claim 1, characterized in that, A guide rod (13) is fixedly connected to the outer wall of the material cavity (2). The guide rod (13) passes through the connecting rod (12), and the connecting rod (12) slides along the straight line of the guide rod (13).

4. The discharge hopper of a nut tapping machine according to claim 1, characterized in that, The handle (7) is a plum blossom handle (7).

5. The discharge hopper of a nut tapping machine according to claim 1, characterized in that, The cover plate (4) is fixedly connected to a baffle, and the baffle has a groove.