A cap feeding mechanism

By using a magnetic material lifting mechanism and anti-stacking, centering, and flipping mechanisms on the conveyor line, the problem of inaccurate end cap feeding was solved, improving the efficiency and quality of motor assembly.

CN224298327UActive Publication Date: 2026-05-29CHANGZHOU JINKANG PRECISION MECHANISM

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU JINKANG PRECISION MECHANISM
Filing Date
2025-06-05
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

During motor assembly, the materials arriving at the end caps are chaotic, making it difficult to position them quickly and accurately, which affects assembly efficiency and quality.

Method used

A magnetic material lifting mechanism is used to load the end caps onto the conveyor line. Through anti-stacking, centering, and flipping, the end caps are finally positioned at the center by the positioning mechanism, which improves assembly efficiency and quality.

Benefits of technology

This enables rapid and accurate positioning of the end caps, improving the efficiency and quality of motor assembly and simplifying subsequent assembly processes.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224298327U_ABST
    Figure CN224298327U_ABST
Patent Text Reader

Abstract

The utility model relates to motor assembly technical field, especially a kind of end cap feeding mechanism, including magnetic feeding mechanism and conveying mechanism, magnetic feeding mechanism includes reversible material frame and magnetic type material taking lifting mechanism, the magnetic type material taking lifting mechanism is slidably installed on lifting frame and the end cap in reversible material frame is attracted and transferred to conveying mechanism;Conveying mechanism is located below the magnetic type material taking lifting mechanism and includes guide mechanism and is sequentially arranged in anti-stacking mechanism, centering mechanism, turnover mechanism and positioning mechanism on conveying line, the guide mechanism extends from the first end of conveying line to turnover mechanism place.The utility model places end cap on conveying line by the magnetic type material taking lifting mechanism, and after anti-stacking, centering, turnover, positioning is realized in positioning mechanism finally, to realize center positioning, to facilitate the subsequent assembly process, improve the efficiency and quality of assembly.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of motor assembly technology, and in particular to an end cap feeding mechanism. Background Technology

[0002] In the existing technology, during the motor assembly process, the end caps are fed in a chaotic manner, with some end caps even overlapping and tangling with each other. It is difficult for the workers or automated equipment responsible for picking up the materials to quickly and accurately locate the required end caps. This not only reduces the overall efficiency of motor assembly, but may also affect the accuracy of subsequent assembly processes due to incorrect material picking, ultimately having an adverse impact on the quality and performance of the motor. Utility Model Content

[0003] This utility model solves the problems in related technologies and proposes an end cap feeding mechanism. The end cap is fed to the conveyor line by a magnetic material lifting mechanism, and after anti-stacking, centering, and flipping, it is finally positioned by the positioning mechanism, thereby achieving center positioning. This facilitates the subsequent assembly process and improves the efficiency and quality of assembly.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: an end cap feeding mechanism, comprising:

[0005] The magnetic feeding mechanism includes a flip-up material frame and a magnetic material lifting mechanism. The magnetic material lifting mechanism is slidably mounted on the lifting frame and picks up the end cap located in the flip-up material frame and transfers it to the conveying mechanism.

[0006] The conveying mechanism is located below the magnetic material lifting mechanism and includes a guiding mechanism and an anti-stacking mechanism, a centering mechanism, a flipping mechanism and a positioning mechanism arranged sequentially on the conveying line. The guiding mechanism extends from the beginning of the conveying line to the flipping mechanism.

[0007] As a preferred embodiment, the flip-up frame includes a frame and a swing arm assembly that are rotatably connected, and the swing arm assembly is driven by a swing arm assembly drive device to flip the frame.

[0008] As a preferred embodiment, the magnetic material lifting mechanism is mounted on a movable frame, which is slidably mounted on the lifting frame and moves horizontally along the lifting frame under the drive of the horizontal drive mechanism. The magnetic material lifting mechanism includes a consistent number of magnets and a stripping cylinder. The magnets are mounted inside the stripping cylinder via wire harnesses, and the wire harnesses are wound on a wire harness reel, which is driven by a reel drive mechanism.

[0009] As a preferred embodiment, conversion pins are installed on both sides of the movable frame, and horizontal drive mechanisms are installed on both sides of the lifting frame. The horizontal drive mechanisms are connected to the conversion pins to drive the movable frame to move horizontally along the lifting frame.

[0010] As a preferred embodiment, the guiding mechanism consists of two baffles disposed on the conveyor line, with the distance between the two baffles narrowing at the portion located behind the anti-stacking mechanism.

[0011] As a preferred embodiment, the anti-stacking mechanism includes a limiting plate, a kicking cylinder, and an anti-stacking sensor. The gap between the limiting plate and the conveyor line is greater than the height of one end cap and less than the minimum height after two end caps are stacked. The kicking cylinder is used to kick out the stacked end caps.

[0012] As a preferred embodiment, the centering mechanism includes a centering cylinder, a blocking plate, and a centering sensor. The centering cylinder drives the blocking plate to change the movement trajectory of the end cap so that it can be centered.

[0013] As a preferred embodiment, the flipping mechanism includes a flipping gripper, a forward / reverse detection mechanism, and an end cap blocker. When the forward / reverse detection mechanism detects that the end cap is reversed, it blocks the end cap from advancing by the end cap blocker and flips it by the flipping gripper.

[0014] As a preferred embodiment, the positioning mechanism includes a first positioning platform disposed on one side of the end of the conveyor line, wherein the end of the first positioning platform for accommodating the end cap has a stepped structure and a notch.

[0015] As a preferred embodiment, the positioning mechanism includes a second positioning platform slidably mounted at the end of the conveyor line, the second positioning platform having a receiving groove at one end for accommodating the front cover.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a magnetic material lifting mechanism to load the end cap onto the conveyor line, and after anti-stacking, centering, and flipping, it is finally positioned by the positioning mechanism, thereby achieving center positioning, which is beneficial to the subsequent assembly process and improves the efficiency and quality of assembly; the material frame has a flip-up structure, which is convenient for magnetic material picking; the conversion between the working material frame and the spare material frame can be realized by the conversion pin; the positioning platform of the front end cap is slidably installed, which is convenient for the subsequent picking by the robot arm. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the magnetic feeding mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the flip-up material frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the magnetic material lifting mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the magnetic material lifting mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the conveying mechanism of this utility model;

[0023] Figure 7 This is a schematic diagram of the anti-stacking mechanism of this utility model;

[0024] Figure 8 This is a structural schematic diagram of the centering mechanism, flipping mechanism, and positioning mechanism (the structure in Embodiment 1) of this utility model;

[0025] Figure 9 This is a schematic diagram of the structure of the flipping gripper of this utility model;

[0026] Figure 10 This is a schematic diagram of the positioning mechanism in Embodiment 2 of this utility model;

[0027] Figure 11 This is a schematic diagram of the positioning mechanism in Embodiment 2 of this utility model.

[0028] In the picture:

[0029] 1. Magnetic feeding mechanism; 11. Reversible material frame; 111. Material frame; 112. Swing arm assembly; 1121. Horizontal swing arm; 1122. Vertical swing arm; 1123. Horizontal shaft; 1124. Lifting ring; 113. Swing arm assembly drive device; 114. Lifting mounting frame; 12. Magnetic material lifting mechanism; 121. Magnet; 122. Unloading cylinder; 123. Reel drive structure; 124. Wire harness reel; 125. Wire guide seat; 13. Lifting frame; 14. Moving frame; 15. Horizontal drive mechanism; 16. Converter pin; 2. Conveying mechanism; 21. Conveyor line; 22. Guide mechanism; 221. Stop bar; 222. Side support bracket; 23. Anti-stacking mechanism; 231. Limiting plate; 232. 233. Exhaust cylinder, 24. Anti-stacking sensor, 25. Centering mechanism, 26. Centering cylinder, 24. Baffle plate, 24. Centering sensor, 25. Flipping mechanism, 251. Flipping gripper, 2511. Vertical drive cylinder, 2512. Slide rail, 2513. Horizontal drive cylinder, 2514. Active gripper arm, 2515. Driven gripper arm, 2516. Cylinder mounting base, 2517. Limiting baffle plate, 2518. Flipping motor, 252. Forward and reverse detection mechanism, 253. End cap blocker, 26. Positioning mechanism, 261. First positioning platform, 262. Notch, 263. Second positioning platform, 264. Receiving groove, 265. Sliding platform, 31. Rear end cap, 32. Front end cap. Detailed Implementation

[0030] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0033] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0034] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0035] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0036] Example 1

[0037] like Figures 1 to 9 As shown, an end cap feeding mechanism includes a magnetic feeding mechanism 1 and a conveying mechanism 2. The magnetic feeding mechanism 1 includes a flip-up material frame 11 and a magnetic material lifting mechanism 12. The magnetic material lifting mechanism 12 is slidably mounted on a lifting frame 13 and picks up the end caps located in the flip-up material frame 11 and transfers them to the conveying mechanism 2. The conveying mechanism 2 is located below the magnetic material lifting mechanism 12 and includes a guide mechanism 22 and an anti-stacking mechanism 23, a centering mechanism 24, a flipping mechanism 25 and a positioning mechanism 26 arranged sequentially on the conveying line 21. The guide mechanism 22 extends from the beginning of the conveying line 21 to the flipping mechanism 25.

[0038] In one embodiment, there are two flip-up material frames 11, one for holding end caps and the other as a spare. The flip-up material frame 11 includes a rotatably connected material frame 111 and a swing arm assembly 112. The swing arm assembly 112 is driven by a swing arm assembly drive device 113 to flip the material frame 111. Specifically, the swing arm assembly 112 includes a horizontal swing arm 1121, a vertical swing arm 1122, and a horizontal shaft 1123. Two horizontal swing arms 1121 are welded to the bottom of the material frame 111, and two vertical swing arms 1122 are located on opposite sides of the two material frames 111. The horizontal swing arm 1121 is rotatably connected to the two vertical swing arms 1122 respectively. The horizontal shaft 1123 is installed between the two vertical swing arms 1122, and a lifting ring 1124 is installed on the horizontal shaft 1123. The swing arm assembly drive device 113 is a chain electric hoist and is installed on the hoisting frame 114. When in use, the chain electric hoist hooks the lifting ring 1124, and under the action of the swing arm assembly 112, the material frame 111 is flipped to the side away from the vertical swing arms 1122, so that the end cover slides down to the bottom of the magnetic material lifting mechanism 12 for easy material retrieval.

[0039] In one embodiment, the magnetic material lifting mechanism 12 is mounted on the movable frame 14, which is slidably mounted on the lifting frame 13 and moves horizontally along the lifting frame 13 under the drive of the horizontal drive mechanism 15, which may be a cylinder.

[0040] In one embodiment, the magnetic material lifting mechanism 12 includes a consistent number of magnets 121 and a stripping cylinder 122. The magnets 121 are installed inside the stripping cylinder 122 via wire harnesses. The wire harnesses are driven by a spool drive mechanism 123 to rotate the wire harness spool 124, thereby causing the magnets 121 to rise and fall. Specifically, the spool drive mechanism 123 is a motor, and the output shaft of the motor is connected to the wire harness spool 124 to drive its rotation. The two ends of the wire harness spool 124 are mounted on the movable frame 14 via bearings. The wire harnesses are wound around the wire harness spool 124 via wire guides 125. When picking up material, the motor drives the wire harness spool 124 to rotate, causing the magnets 121 to descend and lift the end caps. When dropping material, the motor drives the wire harness spool 124 to rotate, causing the magnets 121 to rise. When the magnets 121 rise into the stripping cylinder 122, the end caps are blocked by the stripping cylinder 122 and detach from the magnets 121, thus falling onto the conveyor line 21.

[0041] In one embodiment, to facilitate the switching between the two material frames 111, conversion pins 16 are installed on both sides of the moving frame 14, and horizontal drive mechanisms 15 are installed on both sides of the lifting frame 13. The horizontal drive mechanisms 15 are connected to the conversion pins 16 to drive the moving frame 14 to move horizontally along the lifting frame 13.

[0042] In one embodiment, the guide mechanism 22 consists of two baffles 221 fixed to the conveyor line 21 by a baffle bracket 222. The distance between the two baffles 221 located after the anti-overlapping mechanism 23 is narrowed to facilitate subsequent alignment.

[0043] In one embodiment, the anti-stacking mechanism 23 includes a limiting plate 231, a kicking cylinder 232, and an anti-stacking sensor 233. The gap height between the limiting plate 231 and the conveyor line 21 is greater than the height of one end cap and less than the minimum height after two end caps are stacked, so that only one end cap can pass through at a time. There are two anti-stacking sensors 233 located on both sides of the conveyor line 21, which are used to detect the height of the end caps. When the stacking of end caps is detected, the piston rod of the kicking cylinder 232 extends to kick out the stacked end caps. At this time, an opening can be provided on the guide mechanism 22 opposite to the kicking cylinder 232 to kick out the stacked end caps.

[0044] In one embodiment, the centering mechanism 24 includes four sets of centering cylinders 241, four sets of baffle plates 242, and a centering sensor 243. Specifically, the piston rod of the centering cylinder 241 is connected to the baffle plate 242. Guide posts are also installed on both sides of the baffle plate 242 through linear bearings to play a guiding role. In order to protect the centering cylinder 241, linear bearings, and guide posts, a protective cover is provided on its outside. The end of the baffle plate 242 is obliquely cut. The two opposing baffle plates 242 are symmetrically arranged. When centering, the centering sensor 243 is used to detect the position of the end cap. The centering cylinder 241 drives the baffle plate 242 to change the movement trajectory of the end cap so that it can be centered.

[0045] In one embodiment, the flipping mechanism 25 includes a flipping gripper 251, a forward / reverse detection mechanism 252, and an end cap blocker 253. When the forward / reverse detection mechanism 252 detects that the end cap is reversed, it blocks the end cap from advancing by the end cap blocker 253 and flips it by the flipping gripper 251. Specifically, the flipping gripper 251 includes a vertical drive cylinder 2511, a slide rail 2512, a horizontal drive cylinder 2513, an active gripper arm 2514, and a driven gripper arm 2515. The vertical drive cylinder 2511 is mounted on a cylinder mounting base 2516, the slide rail 2512 is mounted on the cylinder mounting base 2516 and the limiting baffle plate 2517, and both the active gripper arm 2514 and the driven gripper arm 2515 are mounted on the slide rail 2513 via sliders. On 512, a horizontal drive cylinder 2513 is installed between the active clamping arm 2514 and the driven clamping arm 2515, and the piston rod of the horizontal drive cylinder 2513 is connected to the driven clamping arm 2515. The active clamping arm 2514 is driven by the flipping motor 2518. When flipping, the vertical drive cylinder 2511 drives the flipping mechanism 25 to descend to the end cover. The horizontal drive cylinder 2513 drives the driven clamping arm 2515 to move closer to the active clamping arm 2514 to clamp the end cover. The driven clamping arm 2515 passes through the wire outlet hole of the end cover. The end of the active clamping arm 2514 is an arc-shaped structure that adapts to the outer circumference of the end cover. The flipping motor 2518 drives the active clamping arm 2514 to rotate to flip the end cover over.

[0046] In one embodiment, the positioning mechanism 26 includes a first positioning platform 261 that is bolted to one side of the end of the conveyor line 21. The first positioning platform 261 is used to accommodate an end cap. One end of the end cap has a stepped structure and a notch 262 for clearance.

[0047] The working principle is as follows:

[0048] The lifting ring 1124 is lifted by the chain electric hoist. Under the action of the swing arm assembly 112, the material frame 111 is flipped away from the vertical swing arm 1122, causing the end cover to slide down to the bottom of the magnetic material lifting mechanism 12. During material lifting, the motor drives the wire harness reel 124 to rotate, causing the magnet 121 to descend and lift the end cover. During material unloading, the motor drives the wire harness reel 124 to rotate, causing the magnet 121 to rise. When the magnet 121 rises into the unloading cylinder 122, the end cover is blocked by the unloading cylinder 122 and detaches from the magnet 121, thus falling onto the conveyor line 21. It is then conveyed forward on the conveyor line 21. When passing through the anti-stacking mechanism 23, the anti-stacking mechanism... The stacking sensor 233 is used to detect the height of the end cap. When the end cap is detected to be stacked, the piston rod of the kicking cylinder 232 extends to remove the stacked end cap. If the end cap is not stacked, it continues to be conveyed forward and centered by the centering mechanism 24. The centering sensor 243 is used to detect the position of the end cap. The centering cylinder 241 drives the blocking plate 242 to change the movement trajectory of the end cap to achieve centering. When the positive and negative detection mechanism 252 detects that the end cap is reversed, it blocks the end cap from moving forward by the end cap blocking device 253 and flips it by the flipping gripper 251 before conveying it. If the end cap is detected to be forward, it continues to be conveyed forward to the positioning mechanism 26 for positioning.

[0049] Example 2

[0050] like Figure 10-11 As shown, unlike Embodiment 1, the positioning mechanism 26 includes a positioning platform 263, because the front cover 32 is received as such. Figure 10 As shown, a portion of its edge will be stuck at the bottom of the second positioning platform 263. The second positioning platform 263 needs to be slidably installed at the end of the conveyor line 21. Specifically, the second positioning platform 263 is installed via a sliding platform 265. The sliding platform 265 includes a cylinder and a linear guide pair. The cylinder drives the second positioning platform 263 to slide on the linear guide. The end of the second positioning platform 263 used to accommodate the front cover 32 has a receiving groove 264 for accommodating the front cover. When the robot arm grabs the front cover 32, the second positioning platform 263 slides backward to make room for the edge of the front cover 32 to be exposed, making it convenient for the robot arm to grab.

[0051] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. An end cap feeding mechanism, characterized in that, include: The magnetic feeding mechanism (1) includes a flip-up material frame (11) and a magnetic material lifting mechanism (12). The magnetic material lifting mechanism (12) is slidably installed on the lifting frame (13) and picks up the end cap located in the flip-up material frame (11) and transfers it to the conveying mechanism (2). The conveying mechanism (2) is located on one side of the magnetic material lifting mechanism (12) and includes a guiding mechanism (22) and an anti-stacking mechanism (23), a centering mechanism (24), a flipping mechanism (25) and a positioning mechanism (26) arranged sequentially on the conveying line (21). The guiding mechanism (22) extends from the beginning of the conveying line (21) to the flipping mechanism (25).

2. The end cap feeding mechanism according to claim 1, characterized in that: The flip-up frame (11) includes a frame (111) and a swing arm assembly (112) that are rotatably connected. The swing arm assembly (112) is driven by a swing arm assembly drive device (113) to flip the frame (111).

3. The end cap feeding mechanism according to claim 1, characterized in that: The magnetic material lifting mechanism (12) is mounted on the movable frame (14). The movable frame (14) is slidably mounted on the lifting frame (13) and moves horizontally along the lifting frame (13) under the drive of the horizontal drive mechanism (15). The magnetic material lifting mechanism (12) includes a consistent number of magnets (121) and a stripping cylinder (122). The magnets (121) are mounted in the stripping cylinder (122) through wire harnesses. The wire harnesses are wound on wire harness reels (124) and the wire harness reels (124) are driven by the reel drive mechanism (123).

4. The end cap feeding mechanism according to claim 3, characterized in that: The movable frame (14) is equipped with conversion pins (16) on both sides, and the lifting frame (13) is equipped with horizontal drive mechanisms (15) on both sides. The horizontal drive mechanisms (15) are connected to the conversion pins (16) to drive the movable frame (14) to move horizontally along the lifting frame (13).

5. The end cap feeding mechanism according to claim 1, characterized in that: The guiding mechanism (22) consists of two baffles (221) set on the conveyor line (21), and the distance between the two baffles (221) located after the anti-stacking mechanism (23) narrows.

6. The end cap feeding mechanism according to claim 1, characterized in that: The anti-stacking mechanism (23) includes a limiting plate (231), a kicking cylinder (232), and an anti-stacking sensor (233). The gap between the limiting plate (231) and the conveyor line (21) is greater than the height of one end cap and less than the minimum height after two end caps are stacked. The kicking cylinder (232) is used to kick out the stacked end caps.

7. The end cap feeding mechanism according to claim 1, characterized in that: The centering mechanism (24) includes a centering cylinder (241), a baffle plate (242), and a centering sensor (243). The centering cylinder (241) drives the baffle plate (242) to change the movement trajectory of the end cap so that it can be centered.

8. The end cap feeding mechanism according to claim 1, characterized in that: The flipping mechanism (25) includes a flipping gripper (251), a positive and negative detection mechanism (252), and an end cap blocker (253). When the positive and negative detection mechanism (252) detects that the end cap is reversed, it blocks the end cap from moving forward by the end cap blocker (253) and flips it by the flipping gripper (251).

9. The end cap feeding mechanism according to claim 1, characterized in that: The positioning mechanism (26) includes a first positioning platform (261) located on one side of the end of the conveyor line (21). The first positioning platform (261) is used to accommodate the rear cover (31) at one end, which has a stepped structure and a notch (262).

10. The end cap feeding mechanism according to claim 1, characterized in that: The positioning mechanism (26) includes a second positioning platform (263) slidably mounted at the end of the conveyor line (21), and the second positioning platform (263) has a receiving groove (264) at one end for receiving the front end cover (32).