Screw tail cutting machine with mold easy to replace

Abstract

The utility model relates to the field of fastener manufacturing, in particular to a screw tail cutting machine with a die easy to replace. The screw tail cutting machine comprises a base, a containing frame, an operation table, a material conveying machine, a discharging frame, a water tank, a water spraying pipe and the like, the left side of the base is connected with the containing frame, the upper side of the base is connected with the operation table, the material conveying machine is installed on the operation table, the discharging frame is connected to the operation table, and the discharging frame is located on the front lower side of the material conveying machine. A water tank is installed on the upper side of the base and located below the operation table, and a water spraying pipe is connected to the front left side of the water tank. Through the arrangement of the movable sleeve, the fixed sleeve, the threaded sleeve, the limiting sleeve, the limiting block and the elastic piece, when the mold needs to be replaced, the tail cutting mold can be rapidly unlocked only by pulling the movable sleeve and reversely rotating the fixed sleeve, the whole process is simple, convenient and rapid, the mold replacement time is greatly shortened, the operation efficiency of a production line is remarkably improved, and the production cost is reduced. And continuity and high efficiency of production are ensured.

Description

Technical Field

[0001] This utility model relates to the field of fastener manufacturing, and in particular to a screw tail cutter with easily replaceable molds. Background Technology

[0002] A screw tail cutter is a mechanical device specifically designed to cut off excess parts of the head or tail of a screw. It is primarily used in the production process to perform precision machining on screws, ensuring that the screw's length and shape meet design requirements.

[0003] In the screw processing industry, tail cutting is one of the key steps to ensure product quality and specification consistency. Traditional screw tail cutting machines are usually equipped with fixed tail cutting molds. This design enables the machine to efficiently complete the cutting of screws of specific sizes and shapes. However, due to the tight integration between the tail cutting mold and the machine body, the operation is complicated and time-consuming when it is necessary to change molds of different specifications or types. This not only reduces production efficiency but also increases maintenance costs.

[0004] To address the above issues, a screw tail cutter with easily interchangeable molds needs to be designed. Utility Model Content

[0005] To overcome the drawback of the difficulty in replacing the tail-cutting mold, this utility model provides a screw tail-cutting machine with an easily replaceable mold.

[0006] The technical implementation scheme of this utility model is as follows: A screw tail-cutting machine with easily replaceable molds includes a base, a placement frame, an operating table, a conveyor, a feeding frame, a water tank, a water spray pipe, a mounting block, a first motor, a tail-cutting mold, a screw, a slider, a second motor, a moving sleeve, a fixed sleeve, a threaded sleeve, a limiting sleeve, a limiting block, and an elastic element. The placement frame is connected to the left side of the base, and the operating table is connected to the upper side of the base. The conveyor is mounted on the operating table, and the feeding frame is connected to the operating table. The feeding frame is located in front of and below the conveyor. The water tank is mounted on the upper side of the base and is located below the operating table. A mounting block is connected to the left side of the water tank. There is a water spray pipe. A mounting block is connected to the rear side of the operating table. The first motor is installed inside the mounting block. A threaded sleeve is fitted on the front end of the output shaft of the first motor. A fixed sleeve is threaded onto the threaded sleeve. A limit sleeve is installed inside the fixed sleeve. Multiple limit blocks are slidably connected inside the limit sleeve. An elastic element is connected between each limit block and the outer wall of the limit sleeve. A tail-cutting mold is inserted inside the limit sleeve. A movable sleeve is connected to the outside of the fixed sleeve. A second motor is installed on the rear side of the operating table. A screw is connected to the right end of the output shaft of the second motor. A slider is slidably connected to the screw. The slider is fixedly connected to the side of the first motor.

[0007] In a preferred embodiment of this utility model, it further includes a support block, a rotating rod, a connecting block, and a locking rod. The support block is connected to the operating table, the rotating rod is rotatably connected inside the support block, the front end of the rotating rod is connected to the connecting block, and the locking rod is slidably connected inside the connecting block. The locking rod contacts and engages with the tail-cutting mold.

[0008] In a preferred embodiment of the present invention, a material unloading rack is also included. The material unloading rack is connected to the operating table and is located at the material discharge port of the conveyor.

[0009] In a preferred embodiment of this utility model, a miniature vibrator is also included, which is mounted on the operating table.

[0010] In a preferred embodiment of the present invention, a material feeding frame is further included, and two material feeding frames are placed inside the feeding frame.

[0011] In a preferred embodiment of this invention, a turntable is connected to the rear end of the rotating rod.

[0012] The beneficial effects of this utility model are as follows: By setting up a movable sleeve, a fixed sleeve, a threaded sleeve, a limiting sleeve, a limiting block and an elastic element, when it is necessary to change the mold, simply pull the movable sleeve and rotate the fixed sleeve in the opposite direction to quickly unlock the tail-cutting mold. The whole process is simple and quick, which not only greatly shortens the mold change time, but also significantly improves the operating efficiency of the production line and ensures the continuity and efficiency of production. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the operating platform, feeding frame, water tank, and other components of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the mounting block, tail-cutting mold, and screw of this utility model.

[0016] Figure 4 This is a cross-sectional view of the mounting block of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the screw, slider, and second motor components of this utility model.

[0018] Figure 6 This is a cross-sectional view of the fixing sleeve and limiting sleeve of this utility model.

[0019] Figure 7 This is a three-dimensional structural diagram of the limiting block and elastic element of this utility model.

[0020] Figure 8This is a three-dimensional structural diagram of the support block, rotating rod, and connecting block of this utility model.

[0021] The components in the attached diagram are labeled as follows: 1. Base, 101. Placement frame, 2. Operating table, 3. Conveyor, 4. Unloading frame, 5. Water tank, 6. Water spray pipe, 7. Mounting block, 71. First motor, 8. Tail-cutting mold, 9. Screw, 91. Slider, 10. Second motor, 11. Moving sleeve, 12. Fixed sleeve, 13. Threaded sleeve, 14. Limiting sleeve, 15. Limiting block, 16. Elastic element, 17. Support block, 18. Rotating rod, 181. Connecting block, 182. Clamping rod, 19. Unloading rack, 20. Micro vibrator, 21. Unloading frame. Detailed Implementation

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0023] Example: A screw tail cutter with easily changeable molds, such as Figures 1-8As shown, the assembly includes a base 1, a placement frame 101, an operating table 2, a conveyor 3, a discharge frame 4, a water tank 5, a water spray pipe 6, a mounting block 7, a first motor 71, a tail-cutting mold 8, a screw 9, a slider 91, a second motor 10, a moving sleeve 11, a fixed sleeve 12, a threaded sleeve 13, a limiting sleeve 14, a limiting block 15, an elastic element 16, a support block 17, a rotating rod 18, a connecting block 181, a clamping rod 182, a unloading rack 19, a micro vibrator 20, and a discharge frame 21. The placement frame 101 is connected to the left side of the base 1, and the operating table 2 is connected to the upper side of the base 1. The conveyor 3 is installed on the operating table 2, which is responsible for conveying the screw to the tail-cutting position. The discharge frame is connected to the operating table 2. 4. The feeding frame 4 is located on the lower front side of the conveyor 3. The feeding frame 4 is used to guide the screws after tail cutting into the feeding frame 21. A water tank 5 is installed on the upper side of the base 1. The water tank 5 is located below the operating table 2. The water tank 5 is used to store cooling water. A water spray pipe 6 is connected to the front left side of the water tank 5. The water spray pipe 6 is responsible for accurately spraying cooling water onto the screws that are being tail-cut, which plays a role in cooling and protection. An installation block 7 is connected to the rear side of the operating table 2. The first motor 71 is installed inside the installation block 7. A threaded sleeve 13 is fitted on the front end of the output shaft of the first motor 71. A fixed sleeve 12 is threadedly connected to the threaded sleeve 13. A limit sleeve 14 is provided inside the fixed sleeve 12. Multiple limit blocks 15 are slidably connected inside the limit sleeve 14. The limiting block 15 can fix the tail-cutting mold 8. Each limiting block 15 is connected to the outer wall of the limiting sleeve 14 with an elastic element 16. The elastic element 16 can provide a restoring force for the limiting block 15. The tail-cutting mold 8 is inserted inside the limiting sleeve 14. The tail-cutting mold 8 can perform tail-cutting operations on the screws that need to be tail-cut. The fixed sleeve 12 is connected to the outer side of the movable sleeve 11. The second motor 10 is installed on the rear side of the operating table 2. The right end of the output shaft of the second motor 10 is connected to the screw 9. The slider 91 is slidably connected to the screw 9. The slider 91 is fixedly connected to the side of the first motor 71. The operating table 2 is connected to the support block 17. The rotating rod 18 is rotatably connected inside the support block 17. The rotating rod 18 is used to drive the movement of the clamping rod 182. The rear end of the rotating rod 18 is connected to a turntable, and the front end of the rotating rod 18 is connected to a connecting block 181. The clamping rod 182 is slidably connected inside the connecting block 181. The clamping rod 182 contacts and cooperates with the tail-cutting mold 8. The unloading rack 19 is connected to the operating table 2. The unloading rack 19 is located at the discharge port of the conveyor 3. The unloading rack 19 causes the screws that have completed the tail-cutting to fall off the conveyor 3 by squeezing. A micro vibrator 20 is installed on the operating table 2. The micro vibrator 20 can use vibration to help the screws slide smoothly into the feeding frame 21. There are two feeding frames 21 inside the placement frame 101. The feeding frames 21 are used to place the screws that have completed the tail-cutting operation for easy subsequent collection and processing.

[0024] When this device is needed to cut the ends of screws, the operator starts the conveyor 3 and the micro vibrator 20, putting them into operation. The operator then places the screw to be cut into the feeding trough of the conveyor 3. After the screw is placed, the operator starts the second motor 10. The output shaft of the second motor 10 drives the screw 9 to rotate. The screw 9 drives the slider 91, the first motor 71, and all its components to move to the right until the cutting die 8 is aligned with the position where the screw needs to be cut. Then, the second motor 10 is turned off. As the conveyor 3 rotates, it feeds the screw to be cut... The screw is fed to the notch, and then the operator starts the first motor 71. The output shaft of the first motor 71 drives the tail-cutting mold 8 and all its components to rotate. The tail-cutting mold 8 rotates and contacts the screw, and begins to cut the screw tail. During this process, cooling water in the water tank 5 is sprayed onto the screw through the water spray pipe 6 to control the high temperature generated by cutting. After the screw tail is cut, as the feeder 3 continues to rotate, the screw tail-cut is conveyed to the unloading rack 19 and is squeezed off the feeder 3, entering the unloading frame 4, and then sliding from the unloading frame 4 into the discharge frame 21. If the unloading frame 4 becomes blocked, the micro vibrator 20 will automatically start, using vibration to help the screw tail-cut. The wire falls smoothly into the feeding frame 21. This process is repeated until all screw tail-cutting is complete. Then, the conveyor 3, the first motor 71, and the micro vibrator 20 are turned off sequentially. When the tail-cutting mold 8 needs to be disassembled and replaced, the worker first pulls the moving sleeve 11 backward. When the moving sleeve 11 reaches the appropriate position, the worker releases the moving sleeve 11 and then rotates the fixed sleeve 12 in the opposite direction, causing the fixed sleeve 12 to rotate in the opposite direction along the threaded sleeve 13. This, in turn, drives the limiting sleeve 14, the limiting block 15, and the tail-cutting mold 8 to rotate in the opposite direction together until the fixed sleeve 12 is completely dislodged from the threaded sleeve 13. Then, the worker stops rotating the fixed sleeve 12 in the opposite direction and pushes the clamping rod 182 along... The connecting block 181 moves to the right until the locking rod 182 is locked onto the connecting rod of the tail-cutting mold 8. Then, the operator rotates the turntable, which drives the rotating rod 18 to rotate. The rotating rod 18 drives the connecting block 181, the locking rod 182, and the tail-cutting mold 8 to move forward until the tail-cutting mold 8 moves to the point where it separates from the output shaft of the first motor 71. The operator then stops rotating the turntable. Under the reset action of multiple elastic elements 16, multiple limit blocks 15 move along the limit sleeve 14 to their initial positions. The operator then uses other tools to remove the tail-cutting mold 8 and puts the new tail-cutting mold 8 back onto the locking rod 182. The operator repeats the above reverse operation to ensure that the new mold is correctly installed and makes good contact with the output shaft of the first motor 71.

[0025] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A screw tail cutter with easily changeable molds, characterized in that, The system includes a base (1), a placement frame (101), an operating table (2), a conveyor (3), a discharge frame (4), a water tank (5), a water spray pipe (6), a mounting block (7), a first motor (71), a tail-cutting mold (8), a screw (9), a slider (91), a second motor (10), a moving sleeve (11), a fixed sleeve (12), a threaded sleeve (13), a limiting sleeve (14), a limiting block (15), and an elastic element (16). The placement frame (101) is connected to the left side of the base (1). The operating table (2) is set on the upper side of the base (1). The conveyor (3) is installed on the operating table (2). The discharge frame (4) is fixedly connected to the operating table (2). The discharge frame (4) is located in front of and below the conveyor (3). The water tank (5) is installed on the upper side of the base (1). The water tank (5) is located below the operating table (2). The water spray pipe (6) is connected to the left side in front of the water tank (5). An installation block (7) is installed on the rear side of the operating table (2). A first motor (71) is installed inside the installation block (7). A threaded sleeve (13) is fitted on the front end of the output shaft of the first motor (71). A fixed sleeve (12) is threadedly connected to the threaded sleeve (13). A limit sleeve (14) is set inside the fixed sleeve (12). Multiple limit blocks (15) are slidably connected inside the limit sleeve (14). An elastic element (16) is connected between each limit block (15) and the outer wall of the limit sleeve (14). A tail-cutting mold (8) is inserted inside the limit sleeve (14). A movable sleeve (11) is connected to the outside of the fixed sleeve (12). A second motor (10) is installed on the rear side of the operating table (2). A screw (9) is connected to the right end of the output shaft of the second motor (10). A slider (91) is slidably connected to the screw (9). The slider (91) is connected to the side of the first motor (71).

2. The screw tail cutter with easily changeable mold according to claim 1, characterized in that, It also includes a support block (17), a rotating rod (18), a connecting block (181), and a locking rod (182). The support block (17) is fixedly connected to the operating table (2). The rotating rod (18) is rotatably connected inside the support block (17). The connecting block (181) is fixedly connected to the front end of the rotating rod (18). The locking rod (182) is slidably connected inside the connecting block (181). The locking rod (182) is in contact with the tail cutting mold (8).

3. A screw tail cutter with easily interchangeable molds according to claim 2, characterized in that, It also includes a discharge rack (19), which is installed on the operating table (2) and is located at the discharge port of the conveyor (3).

4. A screw tail cutter with easily interchangeable molds according to claim 3, characterized in that, It also includes a micro vibrator (20), which is installed on the operating table (2).

5. A screw tail cutter with easily interchangeable molds according to claim 4, characterized in that, It also includes a material feeding frame (21), and two material feeding frames (21) are placed inside the placement frame (101).

6. A screw tail cutter with easily interchangeable molds according to claim 5, characterized in that, A turntable is connected to the rear end of the rotating rod (18).

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