A needle grinding machine

Abstract

This utility model relates to a needle grinding machine, comprising a positioning support mechanism, a pressing and rolling needle mechanism, and a cam follower mechanism. The positioning support mechanism is installed on one side of the cam follower mechanism, and the driving end of the cam follower mechanism is connected to the pressing and rolling needle mechanism. The pressing and rolling needle mechanism is located on the other side of the cam follower mechanism, and the cam follower mechanism drives the pressing and rolling needle mechanism to perform horizontal reciprocating motion. This needle grinding machine has a simple structure, occupies little space, and is easy to operate, making it widely applicable in various application scenarios.

Description

Technical Field

[0001] This utility model relates to the field of needle grinding machine technology, and in particular to a needle grinding machine. Background Technology

[0002] A needle grinding machine is a specialized piece of equipment used for precision grinding or polishing of needle-shaped workpieces (such as sewing needles, medical needles, industrial probes, etc.), and is widely used in textiles, medical devices, and electronics manufacturing. Existing needle grinding machines are complex in structure, occupy a large space, and are complicated to operate, making them unsuitable for applications with limited space. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a needle grinding machine that is not only simple in structure and small in space, but also quick to operate and can be widely used in various application scenarios.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a needle grinding machine, including a positioning support mechanism, a pressing needle rolling mechanism and a cam follower mechanism. The positioning support mechanism is installed on one side of the cam follower mechanism. The driving end of the cam follower mechanism is connected to the pressing needle rolling mechanism. The pressing needle rolling mechanism is located on the other side of the cam follower mechanism. The cam follower mechanism drives the pressing needle rolling mechanism to perform horizontal reciprocating motion.

[0005] In one embodiment, the positioning support mechanism of the grinding needle machine includes a fixed plate, a sliding seat, a positioning plate, and a first cylinder. The fixed plate is installed on the side of the cam follower mechanism, the first cylinder is installed on the fixed plate, the driving end of the first cylinder is connected to the sliding seat, the side of the sliding seat is slidably engaged with the cam follower mechanism, the positioning plate is installed on the top of the sliding seat, and the first cylinder is used to drive the sliding seat to move the positioning plate up and down.

[0006] In one embodiment, the clamping assembly of the needle grinding machine includes two clamping plates for clamping the positioning plate. The two clamping plates are connected by a bolt assembly. Two limiting blocks are symmetrically arranged on the fixing plate. Adjustable limiting bolts are symmetrically arranged at the bottom of the sliding seat. The limiting blocks are used to limit the limiting bolts.

[0007] In one embodiment, the top of the positioning plate of the needle grinding machine is a horizontal plane, and a first silicone surface is provided on the top of the positioning plate.

[0008] In one embodiment, the positioning plate of the grinding machine is located at the top of the cam follower mechanism. When the positioning plate is subjected to force, the cam follower mechanism supports the positioning plate.

[0009] In one embodiment, the needle grinding machine's pressing and rolling mechanism includes a mounting base, a base plate, and a lower pressure plate. A plurality of second cylinders are sequentially spaced between the mounting base and the base plate. The mounting base is located above the base plate, and the second cylinders are mounted on the mounting base. The driving end of the second cylinder is connected to the base plate. The base plate and the lower pressure plate are connected by a guide post assembly. The guide post assembly passes through the mounting base and is connected to the mounting base by a guide sleeve. One end of the guide post assembly is connected to the lower pressure plate, and the other end of the guide post assembly is connected to the base plate. The lower pressure plate is located above the mounting base. The second cylinders are used to drive the base plate to move the lower pressure plate up and down. The mounting base is connected to the driving end of the cam follower mechanism.

[0010] In one embodiment, the lower pressure plate of the needle grinding machine includes a connecting plate and a needle rolling plate. The side end of the connecting plate is connected to the needle rolling plate. The guide column assembly is connected to the bottom of the connecting plate. The connecting plate is located above the mounting base. The bottom of the needle rolling plate is a horizontal plane. A second silicone surface is provided on the bottom of the needle rolling plate. The needle rolling plate is located above the positioning support mechanism.

[0011] In one embodiment, the guide post assembly of the grinding needle machine includes a plurality of symmetrically arranged guide posts. One end of each guide post is connected to the base plate, and the other end of each guide post passes through the mounting base and is connected to the lower pressure plate. The guide posts and the mounting base are connected by guide sleeves.

[0012] In one embodiment, the cam follower mechanism of the needle grinding machine includes a housing, a follower box, a motor, a rotating shaft, and a cam. The follower box is slidably installed inside the housing. The motor and the rotating shaft are installed inside the follower box. The drive end of the motor is connected to one end of the rotating shaft via a coupling. The cam is sleeved and fixed on the rotating shaft. The other end of the rotating shaft is connected to the follower box via a bearing and passes through the housing. The two end faces of the cam are provided with arc-shaped contours. Two rollers are fixedly installed on the housing. The axes of the two rollers are perpendicular to the rotation axis of the cam. The two rollers slide in cooperation with the arc-shaped contours of the two end faces of the cam. The side end of the follower box is connected to the pressing needle rolling mechanism. The motor is used to drive the rotating shaft to rotate the cam. The arc-shaped contours of the two end faces of the cam slide in cooperation with the two fixed rollers, converting the rotational motion of the cam into the reciprocating linear motion of the follower box along the housing, thereby driving the pressing needle rolling mechanism to move.

[0013] The beneficial effects of this application are as follows:

[0014] This application provides a needle grinding machine, which achieves the needle-rolling operation of needle-shaped workpieces by setting up a positioning support mechanism, a cam follower mechanism, and a downward pressing needle-rolling mechanism in cooperation. The needle grinding machine has a simple structure, occupies little space, and is easy to operate, and can be widely used in various application scenarios.

[0015] This needle grinding machine uses a cam follower mechanism to drive the downward pressing needle rolling mechanism for needle rolling operation, which not only has high transmission efficiency and good stability, but also has a simple structure and saves operating costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a grinding needle machine according to an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the grinding needle machine according to an embodiment of this application from another perspective;

[0018] Figure 3 This is a schematic diagram of the positioning support mechanism of the grinding needle machine according to an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the pressing and rolling mechanism of the grinding machine according to an embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the cam follower mechanism of the grinding needle machine according to an embodiment of this application;

[0021] in:

[0022] 1. Positioning support mechanism; 2. Downward pressing needle rolling mechanism; 3. Cam follower mechanism; 11. Fixed plate; 12. Sliding seat; 13. Positioning plate; 14. First cylinder; 15. Clamping assembly; 111. Limit block; 121. Limit bolt; 131. First silicone surface; 151. Clamping plate; 21. Mounting seat; 22. Base plate; 23. Downward pressing plate; 24. Second cylinder; 25. Guide column assembly; 231. Connecting plate; 232. Needle rolling plate; 233. Second silicone surface; 251. Guide column; 31. Housing; 32. Follower box; 33. Motor; 34. Cam; 35. Coupling; 36. Roller; 37. Rotating shaft; 341. Arc profile. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, an embodiment of this application provides a needle grinding machine, including a positioning support mechanism 1, a pressing needle rolling mechanism 2, and a cam follower mechanism 3. The positioning support mechanism 1 is installed on one side of the cam follower mechanism 3. The driving end of the cam follower mechanism 3 is connected to the pressing needle rolling mechanism 2. The pressing needle rolling mechanism 2 is located on the other side of the cam follower mechanism 3. The cam follower mechanism 3 drives the pressing needle rolling mechanism 2 to perform horizontal reciprocating motion.

[0025] Specifically, the needle-shaped workpiece is placed on the positioning plate 13 of the positioning support mechanism 1, and the lower pressure plate 23 of the lower pressure needle rolling mechanism 2 presses the needle-shaped workpiece tightly on the positioning plate 13. Then, the cam follower mechanism 3 drives the lower pressure needle rolling mechanism 2 to perform reciprocating linear motion to perform needle rolling operation on the needle-shaped workpiece.

[0026] In the above structure, the rotary mechanism is converted into precise reciprocating linear motion by setting the cam follower mechanism 3, thereby improving the needle-rolling efficiency and accuracy of the downward needle-rolling mechanism 2. By setting the positioning support mechanism 1, the downward needle-rolling mechanism 2 and the cam follower mechanism 3 to cooperate with each other, the needle-rolling operation of needle-shaped workpieces is realized. This needle grinding machine is not only simple in structure and occupies little space, but also easy to operate and can be widely used in various operating scenarios.

[0027] like Figure 1 and Figure 3 As shown, in one embodiment, the positioning support mechanism 1 of the needle grinding machine includes a fixed plate 11, a sliding seat 12, a positioning plate 13, and a first cylinder 14. The fixed plate 11 is mounted on the side of the cam follower mechanism 3, and the first cylinder 14 is mounted on the fixed plate 11. The driving end of the first cylinder 14 is connected to the sliding seat 12, and the side of the sliding seat 12 is slidably engaged with the cam follower mechanism 3. The positioning plate 13 is mounted on the top of the sliding seat 12, and the first cylinder 14 drives the sliding seat 12 to move the positioning plate 13 up and down. When a needle-shaped workpiece is placed on top of the positioning plate 13, the lower pressure plate 23 of the lower pressure needle rolling mechanism 2 moves downward to press the needle-shaped workpiece onto the positioning plate 13. The first cylinder 14 drives the sliding seat 12 to move the positioning plate 13 upward to press the needle-shaped workpiece again, so that the needle-shaped workpiece is pressed between the lower pressure plate 23 and the positioning plate 13. This arrangement facilitates the positioning and support of the needle-shaped workpiece and, in conjunction with the lower pressure needle rolling mechanism 2, improves the needle rolling accuracy of the needle-shaped workpiece.

[0028] like Figure 2 and Figure 3As shown, in one embodiment, the clamping assembly 15 of the needle grinding machine includes two clamping plates 151 for clamping the positioning plate 13. The two clamping plates 151 are connected by a bolt assembly. Two limiting blocks 111 are symmetrically arranged on the fixed plate 11, and adjustable limiting bolts 121 are symmetrically arranged at the bottom of the sliding seat 12. The limiting blocks 111 are used to limit the limiting bolts 121. One clamping plate 151 is connected to the top of the sliding seat 12, and the other clamping plate 151 is located above the cam follower mechanism 3. The two clamping plates 151 are connected by a bolt assembly, so that the positioning plate 13 is clamped between the two clamping plates 151. When it is necessary to perform needle-rolling operation on needle-shaped workpieces of different specifications, the two clamping plates 151 are loosened and the positioning plate 13 of different specifications is replaced. The limiting bolts 121 are threadedly connected to the bottom of the sliding seat 12, and the end of the limiting bolts 121 is limited and engaged with the limiting blocks 111 on the fixed plate 11. Rotate the limiting bolt 121 to adjust the distance between the limiting bolt 121 and the limiting block 111, thereby adjusting the rising distance of the positioning plate 13. The clamping assembly 15 facilitates the replacement of the positioning plate 13 according to the specifications of the needle-shaped workpiece, improving the versatility of the equipment. The limiting bolt 121 facilitates the adjustment of the moving distance of the positioning plate 13 according to the specifications of the needle-shaped workpiece, further enhancing the applicability of the equipment.

[0029] like Figure 2 and Figure 3 As shown, in one embodiment, the top of the positioning plate 13 of the needle grinding machine is a horizontal plane, and a first silicone surface 131 is provided on the top of the positioning plate 13. A needle-shaped workpiece is placed on the first silicone surface 131 on the top of the positioning plate 13. A second silicone surface 233 is provided on the lower pressure plate 23. The lower pressure plate 23 presses the needle-shaped workpiece between the first silicone surface 131 and the second silicone surface 233, effectively clamping the needle body and preventing it from slipping during the needle grinding process. The first silicone surface 131 and the second silicone surface 233 also prevent scratches on the needle surface, meeting the requirements for grinding medical needles.

[0030] like Figure 2 As shown, in one embodiment, the positioning plate 13 of the needle grinding machine is located on top of the cam follower mechanism 3. When the positioning plate 13 is subjected to force, the cam follower mechanism 3 supports the positioning plate 13. When the pressure plate 23 reciprocates linearly to perform a needle-rolling operation on the needle-shaped workpiece on the positioning plate 13, the positioning plate 13 is subjected to force, and the housing 31 of the cam follower mechanism 3 supports the positioning plate 13, thereby improving the stability of the positioning plate 13.

[0031] like Figure 2 and Figure 4As shown, in one embodiment, the pressing and rolling mechanism 2 of the grinding needle machine includes a mounting base 21, a base plate 22, and a pressing plate 23. A plurality of second cylinders 24 are arranged sequentially and spaced apart between the mounting base 21 and the base plate 22. The mounting base 21 is located above the base plate 22. The second cylinders 24 are mounted on the mounting base 21 and the driving end of the second cylinders 24 is connected to the base plate 22. The base plate 22 and the pressing plate 23 are connected by a guide post assembly 25. The guide post assembly 25 passes through the mounting base 21 and is connected to the mounting base 21 by a guide sleeve. One end of the guide post assembly 25 is connected to the pressing plate 23, and the other end of the guide post assembly 25 is connected to the base plate 22. The pressing plate 23 is located above the mounting base 21. The second cylinders 24 are used to drive the base plate 22 to move the pressing plate 23 up and down. The mounting base 21 is connected to the driving end of the cam follower mechanism 3. Three second cylinders 24 are sequentially spaced between the mounting base 21 and the base plate 22. The second cylinders 24 are mounted on the mounting base 21, and their drive ends are connected to the base plate 22. When the needle-shaped workpiece is placed on the positioning plate 13, the three second cylinders 24 simultaneously drive the base plate 22 downwards. The base plate 22 then moves the lower pressure plate 23 downwards along the guide column assembly 25, pressing the needle-shaped workpiece firmly onto the positioning plate 13. The cam follower mechanism 3 drives the mounting base 21 to reciprocate linearly with the lower pressure plate 23 to perform a needle-rolling operation on the needle-shaped workpiece. After the needle-rolling operation is complete, the three second cylinders 24 simultaneously drive the base plate 22 to move the lower pressure plate 23 upwards, releasing the needle-shaped workpiece and allowing it to be unloaded. This arrangement facilitates the up-and-down movement of the lower pressure plate 23 for pressing and also allows for easy coordination with the cam follower mechanism 3 to achieve the needle-rolling action.

[0032] like Figure 2 As shown, in one embodiment, the lower pressure plate 23 of the needle grinding machine includes a connecting plate 231 and a needle-rolling plate 232. The side end of the connecting plate 231 is connected to the needle-rolling plate 232. The guide post assembly 25 is connected to the bottom of the connecting plate 231. The connecting plate 231 is located above the mounting base 21. The bottom of the needle-rolling plate 232 is horizontal, and a second silicone surface 233 is provided on the bottom of the needle-rolling plate 232. The needle-rolling plate 232 is located above the positioning support mechanism 1. The second silicone surface 233 of the needle-rolling plate 232 cooperates with the first silicone surface 131 of the positioning plate 13 to effectively clamp the needle body and prevent the needle body from sliding during the needle-rolling process. The first silicone surface 131 and the second silicone surface 233 can also prevent scratches on the surface of the needle, meeting the needle-rolling requirements of medical needles. The connecting plate 231 is convenient for connection with the guide post assembly 25, driving the needle-rolling plate 232 to move up and down.

[0033] like Figure 4As shown, in one embodiment, the guide post assembly 25 of the grinding needle machine includes a plurality of symmetrically arranged guide posts 251. One end of each guide post 251 is connected to the base plate 22, and the other end passes through the mounting base 21 and is connected to the lower pressure plate 23. The guide posts 251 and the mounting base 21 are connected by guide sleeves. Eight guide posts 251 are symmetrically arranged. When the three second cylinders 24 drive the base plate 22 to move up and down, the base plate 22 drives the eight guide posts 251 and the lower pressure plate 23 to move up and down as well. The guide post assembly 25 serves to connect and guide the lower pressure plate 23.

[0034] like Figure 5 As shown, in one embodiment, the cam follower mechanism 3 of the grinding needle machine includes a housing 31, a follower box 32, a motor 33, a rotating shaft 37, and a cam 34. The follower box 32 is slidably installed inside the housing 31. The motor 33 and the rotating shaft 37 are installed inside the follower box 32. The drive end of the motor 33 is connected to one end of the rotating shaft 37 via a coupling 35. The cam 34 is sleeved and fixed on the rotating shaft 37. The other end of the rotating shaft 37 is connected to the follower box 32 via a bearing and passes through the housing 31. The two end faces of the cam 34 are provided with arc-shaped contours 341. The housing 31... Two rollers 36 are fixedly installed on the upper part of the cam 34, and the axes of the two rollers 36 are perpendicular to the rotation axis 37 of the cam 34. The two rollers 36 are slidably engaged with the arc-shaped contours 341 of the end faces of the cam 34. The side end of the follower box 32 is connected to the pressing needle rolling mechanism 2. The motor 33 is used to drive the rotating shaft 37 to rotate the cam 34. The arc-shaped contours 341 of the end faces of the cam 34 are slidably engaged with the two fixed rollers 36, converting the rotational motion of the cam 34 into the reciprocating linear motion of the follower box 32 along the box body 31, thereby driving the pressing needle rolling mechanism 2 to move. After the pressure plate 23 presses against the needle-shaped workpiece, the motor 33 drives the coupling 35 to transmit torque to the rotating shaft 37. The rotating shaft 37 rotates, and the arc-shaped contours 341 of the two end faces of the cam 34 slide against the two fixed rollers 36, converting the rotational motion of the cam 34 into the reciprocating linear motion of the follower box 32 along the box body 31. The follower box 32 drives the mounting base 21 of the lower pressing needle rolling mechanism 2 to reciprocate linearly, and the mounting base 21 drives the lower pressure plate 23 to reciprocate linearly. This setup not only has high transmission efficiency and good stability, but also has a simple structure and saves on operating costs.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A needle grinding machine, characterized in that, It includes a positioning support mechanism (1), a pressing needle rolling mechanism (2), and a cam follower mechanism (3). The positioning support mechanism (1) is installed on one side of the cam follower mechanism (3). The driving end of the cam follower mechanism (3) is connected to the pressing needle rolling mechanism (2). The pressing needle rolling mechanism (2) is located on the other side of the cam follower mechanism (3). The cam follower mechanism (3) drives the pressing needle rolling mechanism (2) to perform horizontal reciprocating motion.

2. The needle grinding machine according to claim 1, characterized in that, The positioning support mechanism (1) includes a fixed plate (11), a sliding seat (12), a positioning plate (13), and a first cylinder (14). The fixed plate (11) is installed on the side of the cam follower mechanism (3). The first cylinder (14) is installed on the fixed plate (11). The driving end of the first cylinder (14) is connected to the sliding seat (12). The side of the sliding seat (12) is slidably engaged with the cam follower mechanism (3). The top of the sliding seat (12) is detachably connected to the positioning plate (13) through a clamping assembly (15). The first cylinder (14) is used to drive the sliding seat (12) to move the positioning plate (13) up and down.

3. The needle grinding machine according to claim 2, characterized in that, The clamping assembly (15) includes two clamping plates (151) for clamping the positioning plate (13). The two clamping plates (151) are connected by a bolt assembly. Two limiting blocks (111) are symmetrically arranged on the fixing plate (11). Adjustable limiting bolts (121) are symmetrically arranged at the bottom of the sliding seat (12). The limiting blocks (111) are used to limit the limiting bolts (121).

4. The needle grinding machine according to claim 2, characterized in that, The top of the positioning plate (13) is a horizontal plane, and the top of the positioning plate (13) is provided with a first silicone surface (131).

5. The needle grinding machine according to claim 2, characterized in that, The positioning plate (13) is located at the top of the cam follower mechanism (3). When the positioning plate (13) is subjected to force, the cam follower mechanism (3) supports the positioning plate (13).

6. The needle grinding machine according to claim 1, characterized in that, The pressing needle rolling mechanism (2) includes a mounting base (21), a base plate (22), and a pressing plate (23). A plurality of second cylinders (24) are arranged sequentially and spaced apart between the mounting base (21) and the base plate (22). The mounting base (21) is located above the base plate (22). The second cylinders (24) are mounted on the mounting base (21). The driving end of the second cylinder (24) is connected to the base plate (22). The base plate (22) and the pressing plate (23) are connected by a guide post assembly (25). The guide post assembly (25) passes through the mounting base (21) and is connected to the mounting base (21) through a guide sleeve. One end of the guide post assembly (25) is connected to the lower pressure plate (23), and the other end of the guide post assembly (25) is connected to the base plate (22). The lower pressure plate (23) is located above the mounting base (21). The second cylinder (24) is used to drive the base plate (22) to move the lower pressure plate (23) up and down. The mounting base (21) is connected to the drive end of the cam follower mechanism (3).

7. The needle grinding machine according to claim 6, characterized in that, The lower pressure plate (23) includes a connecting plate (231) and a needle rolling plate (232). The side end of the connecting plate (231) is connected to the needle rolling plate (232). The guide column assembly (25) is connected to the bottom of the connecting plate (231). The connecting plate (231) is located above the mounting base (21). The bottom of the needle rolling plate (232) is a horizontal plane. The bottom of the needle rolling plate (232) is provided with a second silicone surface (233). The needle rolling plate (232) is located above the positioning support mechanism (1).

8. The needle grinding machine according to claim 6, characterized in that, The guide post assembly (25) includes a plurality of symmetrically arranged guide posts (251). One end of the guide post (251) is connected to the base plate (22), and the other end of the guide post (251) passes through the mounting base (21) and is connected to the lower pressure plate (23). The guide post (251) and the mounting base (21) are connected by a guide sleeve.

9. The needle grinding machine according to claim 1, characterized in that, The cam follower mechanism (3) includes a housing (31), a follower box (32), a motor (33), a rotating shaft (37), and a cam (34). The follower box (32) is slidably installed inside the housing (31). The motor (33) and the rotating shaft (37) are installed inside the follower box (32). The drive end of the motor (33) is connected to one end of the rotating shaft (37) through a coupling (35). The cam (34) is sleeved and fixed on the rotating shaft (37). The other end of the rotating shaft (37) is connected to the follower box (32) through a bearing and passes through the housing (31). The two end faces of the cam (34) are provided with arc-shaped contours (341). The housing (31) is fixedly provided with... Two rollers (36) are arranged with their axes perpendicular to the rotation axis (37) of the cam (34). The two rollers (36) are slidably engaged with the arc contours (341) of the two end faces of the cam (34). The side end of the follower box (32) is connected to the pressing needle rolling mechanism (2). The motor (33) is used to drive the rotating shaft (37) to rotate the cam (34). The arc contours (341) of the two end faces of the cam (34) are slidably engaged with the two fixed rollers (36), converting the rotational motion of the cam (34) into the reciprocating linear motion of the follower box (32) along the box body (31), thereby driving the pressing needle rolling mechanism (2) to move.

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