Knurling machine automatic feeding device

By designing an automatic feeding device, a servo motor drives the feeding disc and reciprocating rod to achieve automatic sorting and conveying of the sleeves. The air jet frame and nozzle are used to clean up debris, which solves the problem of automatic sorting and cleaning of the existing knurling machine feeding device and improves the efficiency and quality of knurling processing.

CN224312573UActive Publication Date: 2026-06-02ZHEJIANG LONGYOU CHENGCHUANG HARDWARE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG LONGYOU CHENGCHUANG HARDWARE CO LTD
Filing Date
2025-08-13
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing knurling machine feeding device is not convenient for automatically sorting and continuously feeding metal sleeves, and it cannot effectively clean the particles and debris on the surface and inner wall of the hollow sleeve, which affects the efficiency and quality of knurling.

Method used

An automatic feeding device was designed, comprising a placement seat, an integrated plate, an air pump, a servo motor, and an air jet frame. The servo motor drives the feeding disc and reciprocating rod to achieve automatic sorting and conveying of the sleeves, and the air jet frame and nozzles are used to blow and clean the surface and inner wall of the sleeves.

Benefits of technology

It enables automatic and continuous input processing of metal sleeves, improves the efficiency of knurling, and effectively cleans particulate debris from the surface and inner wall of the sleeve, thereby enhancing the quality of knurling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses knurling machine automatic feeding device, including the placement seat and the integrated board, the top of placement seat installs the integrated board, the top of placement seat one side of integrated board installs the air pump, the top of placement seat one side of air pump installs the bearing bracket, the top of bearing bracket installs the material bucket, the inside movable arrangement of material bucket has the material shifting disc, the bottom of material bucket installs the first servo motor, the output of first servo motor installs the drive shaft, and drive shaft is connected with the material shifting disc, the surface of material shifting disc is provided with the equal interval multiple groups of recess, be provided with the ejection rail on the lateral wall of material bucket, be provided with the integrated frame on the lateral wall of ejection rail. The utility model not only realized the automatic arrangement of metal sleeve and continuous input processing, facilitated the blowing cleaning of the granular impurities on the surface and inner wall of hollow sleeve, and improved the efficiency and quality of knurling processing.
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Description

Technical Field

[0001] This utility model relates to the field of knurling processing technology, specifically to an automatic feeding device for a knurling machine. Background Technology

[0002] A knurling machine is an industrial device that uses knurling wheels to process specific patterns or textures on the surface of materials. It is mainly used in machinery manufacturing, electronic equipment, and automotive parts. The knurling machine achieves processing through the relative movement and pressure between the rollers and the material. When the material is fixed on the worktable and rotates at a uniform speed, the knurling wheel is in close contact with its surface and rolls, pressing the pattern into the material surface. In the traditional knurling production of sleeves, the feeding method is mostly manual, which has low feeding efficiency. To improve this situation, an automatic feeding device for knurling machines is proposed.

[0003] As disclosed in the authorization announcement number CN222385830U, an automatic feeding device for a thread rolling machine and a thread rolling machine including the feeding device are provided. The device includes a hopper, a lifting mechanism, and a V-groove. One end of the hopper is a feeding port, and the other end is provided with a lifting mechanism and a V-groove. The surface of the hopper for placing the tube is an inclined surface that slopes downward toward the side where the lifting mechanism is located. The device is characterized in that a pushing device is provided at one end of the V-groove, a limiting baffle is provided at the other end, a positioning detector is provided on the limiting baffle, a displacement detection sensor is provided on the side of the V-groove, and at least two clamping positions are provided on the V-groove.

[0004] Although it can achieve automatic feeding of common pipes with lengths of (30) mm to (350) mm by setting a pusher device, it can achieve automatic clamping of pipes of different lengths by setting multiple clamping positions;

[0005] However, the existing feeding device does not solve the problem that it is not conducive to the automatic and continuous input of metal sleeves during use, nor to the blowing and cleaning of particulate debris on the surface and inner wall of hollow sleeves, which affects the efficiency and quality of knurling. Utility Model Content

[0006] The purpose of this utility model is to provide an automatic feeding device for a knurling machine, so as to solve the problems mentioned in the background art, which are not convenient for the automatic and continuous input processing of metal sleeves, and are not conducive to the blowing and cleaning of particulate debris on the surface and inner wall of hollow sleeves, thus affecting the efficiency and quality of knurling processing.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding device for a knurling machine, comprising a placement seat and an integrated plate. The integrated plate is mounted on the top of the placement seat, an air pump is mounted on the top of the placement seat on one side of the integrated plate, a support frame is mounted on the top of the placement seat on the side of the air pump, a material hopper is mounted on the top of the support frame, a material feeding disc is movably arranged inside the material hopper, a first servo motor is mounted on the bottom of the material hopper, a drive shaft is mounted on the output end of the first servo motor and the drive shaft is connected to the material feeding disc, multiple sets of equally spaced grooves are provided on the surface of the material feeding disc, a discharge track is provided on the side wall of the material hopper, an integrated frame is provided on the side wall of the discharge track, and a receiving sleeve is provided at the end of the discharge track away from the material hopper.

[0008] Preferably, a lead screw is movably mounted inside the integrated frame, and a third servo motor is provided on the side wall of the integrated frame, with the output end of the third servo motor connected to the lead screw.

[0009] Preferably, the surface of the lead screw is fitted with a threaded sleeve, and the threaded sleeve is threadedly connected to the lead screw.

[0010] Preferably, the top of the threaded sleeve is provided with an air jet frame, the inner wall of the air jet frame is provided with multiple sets of nozzles, the outer wall of the air jet frame is provided with a flexible hose, and the flexible hose is connected to the air outlet of the air pump.

[0011] Preferably, a second servo motor is provided at the bottom of the integrated board, and a drive shaft is installed at the output end of the second servo motor.

[0012] Preferably, a drive arm is mounted on the surface of the drive shaft, a linkage arm is provided at the end of the drive arm away from the drive shaft, a hinge shaft is provided at the end of the linkage arm near the drive arm, and the linkage arm is movably connected to the drive arm through the hinge shaft.

[0013] Preferably, a reciprocating rod is provided at the end of the linkage arm away from the drive arm, and a pin is provided at the end of the reciprocating rod near the linkage arm, and the reciprocating rod is movably connected to the linkage arm through the pin.

[0014] Preferably, a limiting block is provided at the top of the integrated plate, and the reciprocating rod is slidably connected to the limiting block, and the reciprocating rod can extend into the interior of the receiving sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the feeding device not only realizes the automatic and continuous input processing of metal sleeves, and facilitates the blowing and cleaning of particulate debris on the surface and inner wall of hollow sleeves, but also improves the efficiency and quality of knurling processing.

[0016] (1) The first servo motor drives the feeding disc to rotate via the drive shaft, and the feeding disc drives the metal sleeve to roll. During the rolling process, the end of the hollow sleeve is embedded into the inside of the groove with the end facing downwards, and the feeding disc drives the sleeve to move continuously. When the sleeve moves to the discharge track position, because the material barrel is tilted, the sleeve disengages from the material barrel and slides into the inside of the discharge track. The sleeve slides down along the discharge track into the receiving sleeve, thereby automatically sorting and conveying the sleeve. The second servo motor drives the metal sleeve through the drive shaft. The drive arm rotates, and the drive arm drives the linkage arm to swing through the hinge shaft. The linkage arm drives the reciprocating rod to move back and forth through the pin shaft. The reciprocating rod inserts into the inside of the sleeve and moves the sleeve from the receiving sleeve to the processing position of the knurling machine. The knurling machine completes the knurling process on the hollow sleeve. Because the reciprocating rod moves back and forth, it can continuously input and process the sleeve, realizing automatic sorting and input of metal sleeves, facilitating continuous input and processing of sleeves, and improving the efficiency of knurling.

[0017] (2) As the first servo motor continues to work, the sleeves will be arranged in the discharge track in sequence. When the sleeves are arranged in the smooth section, the air pump will pump the external air through the flexible hose into the air jet frame. The air will be sprayed out from the nozzle through the air jet frame. Since the nozzle surrounds the sleeve, the airflow can clean the large particles of debris adhering to the surface and inside of the sleeve, so as to avoid the large particles of debris affecting the quality of the sleeve knurling. At the same time, the third servo motor can be turned on, and the third servo motor will drive the screw to rotate. The screw will drive the air jet frame and nozzle to move through the threaded sleeve, so as to adjust the initial blowing position of the nozzle. Alternatively, in the stopped state, the sleeves that are stationary in the smooth section of the discharge track can be moved and blown clean in sequence to perform batch blowing cleaning of the hollow sleeves. This facilitates the blowing cleaning of particles of debris on the surface and inner wall of the hollow sleeves, and avoids the large particles of debris affecting the quality of the sleeve knurling process. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front view structural diagram of the present utility model;

[0020] Figure 3 This is a three-dimensional perspective structural diagram of the material bucket of this utility model;

[0021] Figure 4 This is a top view of the material bucket of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the integrated board of this utility model;

[0023] Figure 6This is a three-dimensional structural diagram of the jet frame of this utility model.

[0024] In the diagram: 1. Placement seat; 2. Integrated plate; 3. Air pump; 4. Support frame; 5. Discharge track; 6. Material bucket; 7. First servo motor; 8. Receiving sleeve; 9. Drive shaft; 10. Feeding disc; 11. Groove; 12. Second servo motor; 13. Transmission shaft; 14. Drive arm; 15. Hinge shaft; 16. Linkage arm; 17. Pin shaft; 18. Reciprocating rod; 19. Limiting block; 20. Integrated frame; 21. Air jet frame; 22. Lead screw; 23. Threaded sleeve; 24. Third servo motor; 25. Nozzle; 26. Flexible hose. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Example 1

[0029] Please see Figure 1-6An embodiment of this utility model provides an automatic feeding device for a knurling machine, comprising a placement seat 1 and an integrated plate 2. The integrated plate 2 is installed on the top of the placement seat 1. An air pump 3 is installed on the top of the placement seat 1 on one side of the integrated plate 2. The air pump 3 serves as a power drive. A support frame 4 is installed on the top of the placement seat 1 on one side of the air pump 3. A material bin 6 is installed on the top of the support frame 4. A material feeding disc 10 is movably arranged inside the material bin 6. A first servo motor 7 is installed at the bottom of the material bin 6. The first servo motor 7 serves as a power drive. A drive shaft 9 is installed at the output end of the first servo motor 7 and is connected to the material feeding disc 10. The surface of the material feeding disc 10 is provided with multiple sets of equally spaced grooves 11. A discharge track 5 is provided on the side wall of the material bin 6. An integrated frame 20 is provided on the side wall of the discharge track 5. A receiving sleeve 8 is provided at the end of the discharge track 5 away from the material bin 6.

[0030] The bottom of the integrated board 2 is provided with a second servo motor 12, which serves as a power drive. The output end of the second servo motor 12 is equipped with a transmission shaft 13.

[0031] A drive arm 14 is mounted on the surface of the drive shaft 13. A linkage arm 16 is provided at the end of the drive arm 14 away from the drive shaft 13. A hinge shaft 15 is provided at the end of the linkage arm 16 close to the drive arm 14. The linkage arm 16 is movably connected to the drive arm 14 through the hinge shaft 15.

[0032] A reciprocating rod 18 is provided at the end of the linkage arm 16 away from the drive arm 14, and a pin 17 is provided at the end of the reciprocating rod 18 close to the linkage arm 16. The reciprocating rod 18 is movably connected to the linkage arm 16 through the pin 17.

[0033] The top of the integrated plate 2 is provided with a limiting block 19, and the reciprocating rod 18 is slidably connected to the limiting block 19, and the reciprocating rod 18 can extend into the interior of the receiving sleeve 8;

[0034] The metal sleeve requiring knurling is placed inside the material bin 6. The first servo motor 7 is turned on, and the first servo motor 7 drives the material feeding disc 10 to rotate via the drive shaft 9. The material feeding disc 10 drives the metal sleeve to roll. During the rolling process, the end of the hollow sleeve is inserted into the groove 11 with its end facing downwards. The material feeding disc 10 drives the sleeve to move continuously. When the sleeve moves to the discharge track 5, because the material bin 6 is tilted, the sleeve detaches from the material bin 6 and slides into the discharge track 5. The sleeve slides down the discharge track 5 into the receiving sleeve 8, thus automatically sorting and conveying the sleeve. Then, the second servo motor 12 is turned on. 12 drives the drive arm 14 to rotate via the transmission shaft 13. The drive arm 14 drives the linkage arm 16 to swing via the hinge shaft 15. Under the sliding cooperation of the reciprocating rod 18 and the limiting block 19, the linkage arm 16 drives the reciprocating rod 18 to move back and forth via the pin shaft 17. The reciprocating rod 18 inserts into the inside of the sleeve and drives the sleeve to move from the receiving sleeve 8 to the processing position of the knurling machine. The knurling machine completes the knurling process on the hollow sleeve. Because the reciprocating rod 18 moves back and forth, the sleeve can be continuously input and processed by the reciprocating rod 18. This realizes the automatic sorting and input of the metal sleeve, which facilitates the continuous input and processing of the sleeve and improves the efficiency of the knurling process.

[0035] A lead screw 22 is movably installed inside the integrated frame 20. A third servo motor 24 is provided on the side wall of the integrated frame 20. The third servo motor 24 plays the role of power drive, and the output end of the third servo motor 24 is connected to the lead screw 22.

[0036] The surface of the lead screw 22 is fitted with a threaded sleeve 23, and the threaded sleeve 23 is threadedly connected to the lead screw 22;

[0037] The top of the threaded sleeve 23 is provided with an air jet frame 21, the inner wall of the air jet frame 21 is provided with multiple sets of nozzles 25, the outer wall of the air jet frame 21 is provided with a flexible hose 26, and the flexible hose 26 is connected to the air outlet of the air pump 3.

[0038] As the first servo motor 7 continues to operate, the sleeves will be arranged sequentially within the discharge track 5. When the sleeves are arranged in a smooth section, the air pump 3 can be turned on, and external air will be pumped through the flexible hose 26 into the air jet frame 21. The air will then be ejected from the nozzle 25 through the air jet frame 21. Because the nozzle 25 surrounds the sleeves, the airflow can clean large particles of debris adhering to the surface and inside of the sleeves, thus preventing large particles of debris from affecting the quality of the sleeve knurling. At the same time, the third servo motor 24 can be turned on, and the third servo motor... Machine 24 drives screw 22 to rotate. With screw 22 connected to threaded sleeve 23, screw 22 drives air jet frame 21 and nozzle 25 to move through threaded sleeve 23 to adjust the initial blowing position of nozzle 25. Alternatively, in the stopped state, the sleeves that are stationary on the smooth section of discharge track 5 can be moved and blown cleaned in sequence to perform batch blowing cleaning of hollow sleeves. This facilitates the blowing cleaning of particulate impurities on the surface and inner wall of hollow sleeves, and avoids large particulate impurities affecting the quality of sleeve knurling.

[0039] Work steps

[0040] The first servo motor 7 drives the feeding disc 10 to rotate via the drive shaft 9. The feeding disc 10 drives the metal sleeve to roll. During the rolling process, the end of the hollow sleeve is inserted into the groove 11 with its end facing downwards. The feeding disc 10 drives the sleeve to move continuously. When the sleeve moves to the position of the discharge track 5, because the material barrel 6 is tilted, the sleeve disengages from the material barrel 6 and slides into the discharge track 5. The sleeve slides down the discharge track 5 into the receiving sleeve 8, thereby automatically feeding the sleeve. The sorting and conveying process is carried out by the second servo motor 12 driving the drive arm 14 to rotate via the transmission shaft 13. The drive arm 14 then drives the linkage arm 16 to swing via the hinge shaft 15. The linkage arm 16 then drives the reciprocating rod 18 to move back and forth via the pin shaft 17. The reciprocating rod 18 inserts into the inside of the sleeve and moves the sleeve from the receiving sleeve 8 to the processing position of the knurling machine. The knurling machine then completes the knurling process on the hollow sleeve. Because the reciprocating rod 18 moves back and forth, it can be used to knurl the sleeve. During continuous input processing, as the first servo motor 7 continues to work, the sleeves will be arranged sequentially in the discharge track 5. When the sleeves are arranged in the smooth section, the air pump 3 can be turned on, and the air pump 3 will pump external air through the flexible hose 26 into the air jet frame 21. The air will be sprayed out from the nozzle 25 through the air jet frame 21. Since the nozzle 25 surrounds the sleeve, the airflow can clean the large particles of debris adhering to the surface and inside of the sleeve, so as to avoid the large particles of debris affecting the quality of the sleeve knurling. At the same time, the third servo motor 24 can be turned on, and the third servo motor 24 will drive the lead screw 22 to rotate. With the lead screw 22 and the threaded sleeve 23 connected by threads, the lead screw 22 will drive the air jet frame 21 and the nozzle 25 to move through the threaded sleeve 23 to adjust the initial blowing position of the nozzle 25. Alternatively, in the stopped state, the sleeves that are stationary in the smooth section of the discharge track 5 can be moved sequentially for air blowing and cleaning to perform batch air blowing and cleaning of hollow sleeves. The above is the complete usage of the automatic feeding device of the knurling machine.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic feeding device for a knurling machine, comprising a placement base and an integrated plate, characterized in that: An integrated plate is installed at the top of the placement base. An air pump is installed at the top of the placement base on one side of the integrated plate. A support frame is installed at the top of the placement base on the side of the air pump. A material hopper is installed at the top of the support frame. A material feeding disc is movably arranged inside the material hopper. A first servo motor is installed at the bottom of the material hopper. A drive shaft is installed at the output end of the first servo motor and is connected to the material feeding disc. The surface of the material feeding disc is provided with multiple sets of equally spaced grooves. A discharge track is provided on the side wall of the material hopper. An integrated frame is provided on the side wall of the discharge track. A receiving sleeve is provided at the end of the discharge track away from the material hopper.

2. The automatic feeding device for the knurling machine according to claim 1, characterized in that: A lead screw is movably mounted inside the integrated frame, and a third servo motor is provided on the side wall of the integrated frame, with the output end of the third servo motor connected to the lead screw.

3. The automatic feeding device for the knurling machine according to claim 2, characterized in that: The surface of the lead screw is fitted with a threaded sleeve, and the threaded sleeve is threadedly connected to the lead screw.

4. The automatic feeding device for the knurling machine according to claim 3, characterized in that: The top of the threaded sleeve is provided with an air jet frame, the inner wall of the air jet frame is provided with multiple sets of nozzles, and the outer wall of the air jet frame is provided with a flexible hose, which is connected to the air outlet of the air pump.

5. The automatic feeding device for the knurling machine according to claim 1, characterized in that: A second servo motor is provided at the bottom of the integrated board, and a drive shaft is installed at the output end of the second servo motor.

6. The automatic feeding device for the knurling machine according to claim 5, characterized in that: A drive arm is mounted on the surface of the drive shaft. A linkage arm is provided at the end of the drive arm away from the drive shaft. A hinge shaft is provided at the end of the linkage arm near the drive arm. The linkage arm is movably connected to the drive arm through the hinge shaft.

7. The automatic feeding device for the knurling machine according to claim 6, characterized in that: The end of the linkage arm away from the drive arm is provided with a reciprocating rod, and the end of the reciprocating rod near the linkage arm is provided with a pin, and the reciprocating rod is movably connected to the linkage arm through the pin.

8. The automatic feeding device for the knurling machine according to claim 1, characterized in that: The top of the integrated plate is provided with a limit block, and the reciprocating rod is slidably connected to the limit block, and the reciprocating rod can extend into the interior of the receiving sleeve.