Pen tip protective cover mounting mechanism and mounting wire

Abstract

This utility model provides a pen tip protective sleeve installation mechanism and installation line, relating to the field of pen tip protective sleeve installation technology. The pen tip protective sleeve installation mechanism includes a sleeve flow channel for orderly supply of protective sleeves to subsequent steps; an opening and closing control module to control whether to cut off the sleeve flow channel; a pick-and-place installation mechanism and a rotation drive mechanism: a sleeve installation fixture for accommodating the protective sleeve supplied by the sleeve flow channel, a rotation drive mechanism for driving the pick-and-place installation mechanism to rotate, and an installation power mechanism for installing the protective sleeve from the sleeve installation fixture onto the pen. This device can automatically pick up the protective sleeve and then install it onto the pen, thus replacing manual installation and offering advantages of higher efficiency and lower cost. The installation line in this solution can also automatically adjust the pen barrel feeding posture and remove defective products after protective sleeve installation, further improving the automation level and production efficiency of pen tip protective sleeve installation.

Description

Technical Field

[0001] This utility model relates to the field of pen tip protective sleeve installation technology, and in particular to pen tip protective sleeve installation mechanism and installation line. Background Technology

[0002] Pens require protective sleeves to protect the nib or barrel, such as ballpoint pens and No. 1 pens. Currently, the installation of protective sleeves is mostly done manually, which is inefficient, wastes human resources and leads to high labor costs. Moreover, the installation quality is greatly affected by the operator's skill level and condition. There are few automatic pen cap or protective sleeve installation devices on the market, and they are difficult to achieve good fit. Therefore, there is a need to design an automated device to replace manual installation of protective sleeves. This application is proposed to address the above needs. Utility Model Content

[0003] The purpose of this invention is to provide a pen tip protective sleeve installation mechanism and installation line, which can realize the automatic installation of pen protective sleeves and solve the problems of low efficiency, high cost and unstable installation quality of protective sleeves by manual installation at present.

[0004] To solve the above problems, this utility model provides a pen tip protective sleeve installation mechanism, including a sleeve flow channel, wherein the sleeve flow channel is provided with a space for accommodating the protective sleeve, so as to supply the protective sleeve in an orderly manner for subsequent steps. Preferably, the protective sleeve is arranged in a vertical row and passes through the sleeve flow channel.

[0005] Opening and closing control module: By controlling whether to cut off the flow channel of the protective sleeve, the opening and closing of the flow channel of the protective sleeve is controlled, thus determining whether the protective sleeve can flow out;

[0006] Pick-and-place installation mechanism and rotary drive mechanism: The pick-and-place installation mechanism is connected to the rotary drive mechanism. A protective sleeve installation fixture is installed on the pick-and-place installation mechanism. The protective sleeve installation fixture is used to accommodate the protective sleeve supplied by the protective sleeve flow channel. The rotary drive mechanism is used to drive the pick-and-place installation mechanism to rotate. The rotation angle is determined according to the protective sleeve supply position of the protective sleeve flow channel and the position of the pen barrel. The rotation allows the pick-and-place installation mechanism to switch between the state of picking up the protective sleeve and the state of installing the protective sleeve.

[0007] Installation power mechanism: The installation power mechanism is connected to the pick-and-place installation mechanism. When the pick-and-place installation mechanism is in the state of installing the protective cover, the installation power mechanism is used to drive the pick-and-place installation mechanism to install the protective cover in the protective cover installation fixture onto the pen.

[0008] According to one embodiment of the present invention, the pen tip protective sleeve installation mechanism further includes a feeding vibratory plate, which is connected to the sleeve flow channel. The feeding vibratory plate can hold a large amount of material at one time, achieving stable feeding for a longer period of time.

[0009] According to one embodiment of this utility model, the rotary drive mechanism is provided with a guide rail, and the pick-and-place installation mechanism is connected to the guide rail. The pick-and-place installation mechanism has two states when it is in different positions in the guide rail: picking up the protective cover and installing the protective cover. The installation power mechanism can drive the pick-and-place installation mechanism to switch positions in the guide rail. The installation power mechanism can be selected as a cylinder, cam structure, linear drive structure, or other mechanism that can realize cyclic extension and retraction. During the process of the installation power mechanism driving the pick-and-place installation mechanism to move back and forth, the pick-and-place installation mechanism simultaneously completes the rotation action. After the pick-and-place installation mechanism picks up the material, the installation power mechanism drives the pick-and-place installation mechanism to move closer to the pen barrel to install the protective cover. During the approaching process, the rotation alignment action is completed simultaneously, improving the production cycle.

[0010] According to one embodiment of the present invention, the pen tip protective cover installation mechanism further includes a pen barrel fixing mechanism, which is used to fix the pen barrel when the protective cover is installed. The pen barrel fixing mechanism can be fixed by means of clamping or pressing.

[0011] According to one embodiment of the present invention, the sheath flow channel is provided in several groups, optionally 3 to 6 groups, and the number of sheath installation fixtures is set accordingly, so as to realize the installation of several protective sleeves at one time.

[0012] According to one embodiment of the present invention, the opening and closing control module includes a telescopic mechanism and an opening and closing execution mechanism. The telescopic mechanism is used to drive the opening and closing execution mechanism to open or close the sheath flow channel. The telescopic mechanism is preferably a cylinder. The opening and closing execution mechanism is used to cut off the feeding opening of the sheath flow channel.

[0013] According to one embodiment of the present invention, a vibrator is installed on the sheath flow channel to allow the protective sheath in the sheath flow channel to be discharged, thereby preventing material jamming.

[0014] The pen tip protective sleeve installation line includes a feeding line, a pen barrel orientation detection module, a robotic arm module, a tiered conveyor chain, and the aforementioned pen tip protective sleeve installation mechanism. The feeding line can be used to connect to the previous step. The pen barrel orientation detection module is used to detect the posture of the pen barrel on the feeding line. The robotic arm module is electrically connected to the pen barrel orientation detection module and is used to grasp the pen barrel and adjust its posture. The tiered conveyor chain is a sawtooth tiered conveyor chain, which is provided with a position for individual placement of the pen barrel. The tiered conveyor chain is used to receive and transport the pen barrel after its posture has been adjusted by the robotic arm module. The pen tip protective sleeve installation mechanism installs protective sleeves on the pen barrels on the tiered conveyor chain.

[0015] According to one embodiment of the present invention, the pen tip protective sleeve mounting line further includes a pen barrel orientation detection module and a pen barrel reversal module. The pen barrel orientation detection module is used to detect the orientation of the pen on the tiered conveyor chain. The pen barrel reversal module is electrically connected to the pen barrel orientation detection module and is used to adjust a pen that is placed in reverse.

[0016] Preferably, the pen-turning module includes a turning drive mechanism and a gripping mechanism. The turning drive mechanism includes a height adjustment drive and a rotation drive. The gripping mechanism preferably uses a suction cup, but can optionally use a chuck. The height adjustment drive causes the gripping mechanism to grab the incorrectly placed pen on the tiered conveyor chain and lift it up. The rotation drive causes the gripping mechanism to rotate, completing the pen's turning and then placing the pen back on the tiered conveyor chain.

[0017] According to one embodiment of the present invention, the pen tip protective sleeve mounting line further includes a sleeve detection module and a defective product rejection module. The sleeve detection module is used to detect whether the protective sleeve is installed and whether it is installed correctly. The defective product rejection module is electrically connected to the sleeve detection module and is used to reject defective products.

[0018] According to one embodiment of the present invention, the pen tip protective sleeve installation line further includes a protective sleeve detection module for rejecting defective protective sleeves. The protective sleeve detection module includes a protective sleeve visual inspection module and a protective sleeve sorting module. The protective sleeve visual inspection module inspects the protective sleeves, and the protective sleeve sorting module is electrically connected to the protective sleeve visual inspection module to sort the protective sleeves so that qualified protective sleeves can proceed to the subsequent installation steps.

[0019] According to one embodiment of the present invention, the pen tip protective sleeve installation line further includes a finished product discharge module, which is used to discharge pens with protective sleeves installed on the tiered conveyor chain, and the finished products are stored in a material box after discharge.

[0020] The beneficial effects of this utility model are that this device can automatically pick up the protective sleeve and then install it on the pen, thus replacing manual installation of the protective sleeve. It has the advantages of higher efficiency and lower cost, and the protective sleeve installation quality is stable, ensuring the stability of product quality. In addition, the device has a compact structure and a high degree of integration of steps, further achieving the effect of reducing costs and improving efficiency. The installation line in this solution can also realize the automatic adjustment of the pen barrel feeding posture and the removal of defective products after the protective sleeve is installed, further improving the automation level and production efficiency of pen tip protective sleeve installation. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 A schematic diagram of the overall structure of the pen tip protective sleeve mounting cable;

[0023] Figure 2 A structural schematic diagram of the pen tip protective sleeve mounting line from another perspective;

[0024] Figure 3 This is a structural diagram of the robotic arm module and the pen barrel turning module.

[0025] Figure 4 This is a structural diagram of the pen barrel turning module;

[0026] Figure 5 This is a structural diagram of the sheath detection module and the defective product rejection module.

[0027] Figure 6 A schematic diagram of the structure of the pen tip protective sleeve mounting mechanism;

[0028] Figure 7 A diagram illustrating the removal of the protective sleeve from the pen tip protective sleeve installation mechanism;

[0029] Figure 8 A schematic diagram of the pen tip protective sleeve mounting mechanism and the sleeve detection module;

[0030] Figure 9 This is a structural diagram of the protective case detection module;

[0031] Figure 10 This is a schematic diagram of the rotary drive mechanism and the pick-and-place installation mechanism.

[0032] Figure 11 This is a schematic diagram of the rotary drive mechanism;

[0033] In the diagram: 1-Feeding line; 101-Connecting line; 102-Good product feeding line; 2-Pen barrel direction detection module; 3-Robot arm module; 4-Pen tip protective sleeve installation mechanism; 401-Feeding vibratory feeder; 404-Protective sleeve flow channel; 405-Opening and closing control module; 406-Pick-and-place installation mechanism; 407-Installation power mechanism; 408-Vibrator; 409-Rotary drive mechanism; 4091-Guide rail; 410-Protective sleeve installation fixture; 411-Opening and closing actuator; 5 - Finished product discharge module; 501- Material bin; 6- Cascade conveyor chain; 7- Pen barrel forward / reverse detection module; 8- Pen barrel turning module; 801- Turning drive mechanism; 802- Gripping mechanism; 9- Sheath detection module; 901- Proximity switch; 902- Detector rod; 11- Defective product rejection module; 12- Protective sleeve; 13- Pen barrel fixing mechanism; 161- Full inspection vibratory feeder; 162- Protective sleeve visual inspection module; 163- Protective sleeve material distribution module; 164- Protective sleeve defective product box. Detailed Implementation

[0034] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.

[0035] Example 1:

[0036] Pen tip protective cover mounting mechanism, such as Figures 5-8 It includes a feeding vibratory plate 401, a sheath flow channel 404, an opening and closing control module 405, a pick-and-place installation mechanism 406, a rotation drive mechanism 409, an installation power mechanism 407, and a pen barrel fixing mechanism 13.

[0037] The feeding vibratory feeder 401 is connected to the sheath flow channel 404. The feeding vibratory feeder 401 can hold a large amount of material at one time, achieving stable feeding for a longer period of time. The working principle of the vibratory feeder mainly relies on the combination of vibration and gravity. When the vibratory feeder starts working, the vibratory motor or electromagnet generates a force with a directional frequency, causing the hopper to vibrate in the up-down and circumferential directions. This vibration causes the workpiece in the hopper to move along a specific track, and the track design achieves the directional arrangement of the workpiece during the movement.

[0038] The upper end of the sheath flow channel 404 is connected to the feeding vibratory plate 401, and the lower end is the feeding opening. The sheath flow channel 404 is provided with a space for accommodating the protective sleeve, so as to supply the protective sleeve in an orderly manner for subsequent steps. The protective sleeve 12 is preferably arranged in a vertical row in the sheath flow channel 404. Several groups of sheath flow channels 404 are provided, which can be set up in 3 to 6 groups, preferably 4 groups. The number of protective sleeve installation fixtures 410 is set accordingly, so as to complete the installation of several protective sleeves at one time.

[0039] The sheath flow channel 404 is arranged vertically so that the protective sleeve 12 can descend under the action of gravity. Preferably, a vibrator 408 is installed on the sheath flow channel 404 to allow the protective sleeve 12 in the sheath flow channel 404 to be discharged and avoid material jamming. The vibrator 408 is generally an eccentric worm gear vibrator.

[0040] Opening / closing control module 405: By controlling whether to cut off the sheath flow channel 404, it controls the opening and closing of the sheath flow channel 404, determining whether the protective sheath can flow out. Figure 8 The opening and closing control module 405 includes a telescopic mechanism and an opening and closing actuator 411. The telescopic mechanism is used to drive the opening and closing actuator 411 to open or close the sheath flow channel 404. The telescopic mechanism is preferably a cylinder. The opening and closing actuator 411 is a plate structure and is used to cut off the feeding opening at the bottom of the sheath flow channel 404.

[0041] The pick-and-place installation mechanism 406 is equipped with a protective sleeve installation fixture 410. The protective sleeve installation fixture 410 is detachable and can be replaced with different protective sleeves according to different types of protective sleeves. The protective sleeve installation fixture 410 is provided with a contour cavity to accommodate the protective sleeve.

[0042] The rotary drive mechanism 409 can be any mechanism capable of rotating the pick-and-place installation mechanism 406, such as a motor. The motor, in conjunction with a traditional system, controls the rotation of the pick-and-place installation mechanism 406. In this embodiment, the pick-and-place installation mechanism 406 is set to rotate 90°. When it rotates to a vertical position, the sheath installation fixture 410 aligns with the sheath flow channel 404. The opening and closing control module 405 opens the sheath flow channel 404, allowing the protective sheath to enter the sheath installation fixture 410. The rotary drive mechanism 409 drives the pick-and-place installation mechanism 406 to rotate 90°, aligning the pick-and-place installation mechanism 406 with the pen barrel.

[0043] It should be noted that the rotation angle of the pick-and-place installation mechanism 406 is determined based on the protective sleeve supply position of the sleeve flow channel 404 and the position of the pen barrel. The rotation allows the pick-and-place installation mechanism 406 to switch between the state of picking up the protective sleeve and the state of installing the protective sleeve.

[0044] The mounting power mechanism 407 is connected to the pick-and-place mounting mechanism 406. When the pick-and-place mounting mechanism 406 is in the state of installing the protective cover, the mounting power mechanism 407 is used to drive the pick-and-place mounting mechanism 406 to move, which is generally a linear motion, to install the protective cover in the protective cover mounting fixture 410 onto the pen.

[0045] In this embodiment, the mounting power mechanism 407 can be a mechanism capable of cyclic extension and retraction, such as a cylinder, cam structure, or linear drive structure.

[0046] The pen barrel fixing mechanism 13 is used to fix the pen barrel when the protective cover is installed. The pen barrel fixing mechanism 13 can be fixed by clamping or pressing. In this embodiment, the pen barrel fixing mechanism 13 adopts the pressing method, such as... Figure 5 The pen barrel fixing mechanism 13 includes a lifting drive and a pressing structure. The lifting drive causes the pressing structure to descend and press the pen barrel to fix it, so that the pen barrel remains in a fixed position during the installation of the protective cover.

[0047] Example 2:

[0048] In this embodiment, the rotation drive mechanism 409 and the pick-and-place installation mechanism 406 cooperate by rotating synchronously during the movement of the pick-and-place installation mechanism 406.

[0049] like Figure 10The rotary drive mechanism 409 is equipped with a guide rail 4091, and the pick-and-place installation mechanism 406 is installed in the guide rail 4091. The guide rail 4091 has a curved section. The pick-and-place installation mechanism 406 can rotate 90° at different positions in the guide rail, corresponding to two states: picking up the protective cover and installing the protective cover. The installation power mechanism 407 can drive the pick-and-place installation mechanism 406 to switch positions in the guide rail. The installation power mechanism 407 can be selected as a cylinder, cam structure, linear drive structure, or other mechanism that can realize cyclic extension and retraction. During the forward and backward displacement of the pick-and-place installation mechanism 406 driven by the installation power mechanism 407, the pick-and-place installation mechanism 406 simultaneously completes the rotation action. After the pick-and-place installation mechanism 406 picks up the material, the installation power mechanism 407 drives the pick-and-place installation mechanism 406 to move closer to the pen barrel to install the protective cover. During the approach, the rotation alignment action is completed simultaneously, improving the production cycle.

[0050] Example 1 of the pen tip protective sleeve mounting cable:

[0051] Pen tip protective sleeve mounting cable, such as Figures 1-4 It includes a feeding line 1, a pen barrel direction detection module 2, a robotic arm module 3, a tiered conveyor chain 6, a pen tip protective sleeve installation mechanism 4 in any of the above embodiments, a pen barrel forward / backward detection module 7, a pen barrel turning module 8, a protective sleeve detection module 9, a defective product rejection module 11, and a finished product discharge module 5.

[0052] The feeding line 1 has two layers: a connecting line 101 and a good product feeding line 102. The finished pens on the upper connecting line 101 are assembled by the finished pen assembly machine in the front section and conveyed to the connecting line 101 by belt. The finished pens are taken off by the workers and placed on the full inspection table to check for defective products. The good products are placed on the lower belt of the good product feeding line 102 on the full inspection table. The good product feeding line 102 then transports the pens to the next process.

[0053] The pen orientation detection module 2 adopts an image detection mode and can optionally use a CCD image sensor. The CCD image sensor camera acquires the orientation of the finished pen on the conveyor belt, converts the image into data and transmits it to the robotic arm module 3. The robotic arm rotates to the corresponding position according to the visual data to grab the finished pen and place it on the serrated tiered conveyor chain 6 with fixed distance intervals for transmission.

[0054] Robotic arm module 3 is preferably a spider robot, a highly efficient and precise robotic system. Its core advantages lie in its unique parallel structure and closed-loop control system, enabling rapid and accurate point-to-point control. The spider robot works by using a linkage mechanism and lead screw transmission to grasp and transport objects. These movements are driven by servo motors, connected to the grippers via rotating arms and links, thus completing the grasping and placement of objects. The spider robot's structural features include high precision and high speed. Its repeatability can reach ±0.03mm, and its cycle time is up to 210 times per minute. Furthermore, its compact design saves workspace, is maintenance-free, and features a unique rod-end structure that allows for permanent lubrication and durability. Due to its high speed and precision, the spider robot is widely used in industries such as food, electronics, pharmaceuticals, and light industry. They can be used for sorting and packing, as well as for handling and processing operations on production lines.

[0055] The working steps are as follows: the pen barrel orientation detection module 2 is used to detect the posture of the pen barrel on the feeding line 1; the robot arm module 3 is electrically connected to the pen barrel orientation detection module 2; the robot arm module 3 is used to grab the pen barrel and adjust its posture; the stepped conveyor chain 6 adopts a sawtooth stepped conveyor chain, which is provided with a position for the pen barrel to be placed separately; the stepped conveyor chain 6 is used to receive and transport the pen barrel after the posture is adjusted by the robot arm module 3; and the pen tip protective sleeve installation mechanism 4 installs a protective sleeve on the pen barrel on the stepped conveyor chain 6.

[0056] The pen barrel forward / reverse detection module 7 and the pen barrel turning module 8 are located in the next process step after the robot arm module 3.

[0057] The pen orientation detection module 7 is used to detect the orientation of the pen on the tiered conveyor chain 6, and can be an image detection sensor or a photoelectric detection sensor.

[0058] The pen barrel turning module 8 is electrically connected to the pen barrel orientation detection module 7. The pen barrel turning module 8 is used to adjust a pen that is placed in reverse.

[0059] Preferably, such as Figure 4 The pen-turning module 8 includes a turning drive mechanism 801 and a gripping mechanism 802. The turning drive mechanism 801 includes a height adjustment drive and a rotation drive. The gripping mechanism 802 preferably uses a suction cup, but can optionally use a gripper. The height adjustment drive causes the gripping mechanism 802 to grab the incorrectly placed pen on the tiered conveyor chain 6 and lift it up. The rotation drive causes the gripping mechanism 802 to rotate, completing the pen turning and then placing the pen back on the tiered conveyor chain 6.

[0060] The protective sleeve detection module 9 and the defective product rejection module 11 are located in the next process after the pen tip protective sleeve installation mechanism 4.

[0061] The protective sleeve detection module 9 is used to detect whether the protective sleeve is installed and / or installed correctly.

[0062] The sheath detection module 9 can employ an image sensor, proximity sensor, etc. In this embodiment, for example... Figure 8 The protective sleeve detection module 9 includes a proximity switch 901 and a detection rod 902. The finished pen with the protective sleeve installed will be pushed once by the detection rod 902. If there is a protective sleeve, the proximity switch 901 will light up. If no protective sleeve is installed, the proximity switch 901 will not light up, which makes it easier for the next process of rejecting the pen without the protective sleeve to make a decision on whether to reject it.

[0063] The defective product rejection module 11 is electrically connected to the sheath detection module 9. The defective product rejection module 11 is used to reject defective products. The defective product rejection module 11 adopts the form of displacement drive combined with suction cup or gripper, which can grab the defective pen on the tiered conveyor chain 6 and transfer it to the defective product box.

[0064] Finished product discharge module 5 is used to discharge pens with protective sleeves installed on the tiered conveyor chain 6. For example, it can use a robotic arm, suction cup, gripper or other structure to remove the pens from the tiered conveyor chain 6, or directly use gravity to detach the pens from the tiered conveyor chain 6. After the finished products are discharged, they are stored in the material box 501.

[0065] The effect of applying this device: Previously, the manual inspection and capping of protective sleeves was about 1,000 pieces per hour, while the equipment in this solution can inspect up to 3,000 pieces per hour. The camera intelligently identifies the position and the spider arm sorts the No. 1 ballpoint pen and puts on the cap, which can also achieve 3,000 pieces per hour.

[0066] Example 2 of the pen tip protective sleeve mounting cable:

[0067] like Figure 9 Based on Embodiment 1 of the pen tip protective sleeve installation line, this embodiment also includes a protective sleeve detection module for rejecting defective protective sleeves. The protective sleeve detection module includes a full inspection vibratory feeder 161, a protective sleeve visual inspection module 162, a protective sleeve sorting module 163, and a protective sleeve defective box 164. The protective sleeves are put into the full inspection vibratory feeder 161 and discharged onto the conveyor belt. The protective sleeve visual inspection module 162 identifies defective protective sleeves. The protective sleeve sorting module 163 can use components such as a robotic arm, lever, and gripper to sort defective products. Defective products enter the protective sleeve defective box 164, while qualified protective sleeves enter the feeding vibratory feeder 401.

[0068] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. A pen tip protective sleeve mounting mechanism, characterized in that: Includes a sheath flow channel (404), in which a space is provided for accommodating the protective sheath, so as to orderly supply the protective sheath for subsequent steps; Opening and closing control module (405): used to control the opening and closing of the sheath flow channel (404); Pick-and-place installation mechanism (406) and rotary drive mechanism (409): The pick-and-place installation mechanism (406) is connected to the rotary drive mechanism (409). A protective sleeve installation fixture (410) is installed on the pick-and-place installation mechanism (406). The protective sleeve installation fixture (410) is used to accommodate the protective sleeve supplied by the protective sleeve flow channel (404). The rotary drive mechanism (409) is used to drive the pick-and-place installation mechanism (406) to rotate, so that the pick-and-place installation mechanism (406) switches between the state of picking up the protective sleeve and the state of installing the protective sleeve. Installation power mechanism (407): The installation power mechanism (407) is connected to the pick-and-place installation mechanism (406). When the pick-and-place installation mechanism (406) is in the state of installing the protective cover, the installation power mechanism (407) is used to drive the pick-and-place installation mechanism (406) to install the protective cover in the protective cover installation fixture (410) onto the pen.

2. The pen tip protective sleeve mounting mechanism according to claim 1, characterized in that: The pen tip protective sleeve installation mechanism also includes a feeding vibratory plate (401), which is connected to the sleeve flow channel (404).

3. The pen tip protective sleeve mounting mechanism according to claim 1 or 2, characterized in that: The rotary drive mechanism (409) is provided with a guide rail, and the pick-and-place installation mechanism (406) is connected to the guide rail. The pick-and-place installation mechanism (406) has two states when it is in different positions in the guide rail: picking up the protective cover and installing the protective cover. The installation power mechanism (407) can drive the pick-and-place installation mechanism (406) to switch positions in the guide rail.

4. The pen tip protective sleeve mounting mechanism according to claim 3, characterized in that: The pen tip protective sleeve installation mechanism also includes a pen barrel fixing mechanism (13), which is used to fix the pen barrel when the protective sleeve is installed.

5. The pen tip protective sleeve mounting mechanism according to claim 3, characterized in that: The sheath flow channel (404) is provided in several groups, and the number of sheath installation fixtures (410) is set accordingly, so as to realize the installation of several protective sleeves at one time.

6. The pen tip protective sleeve mounting mechanism according to claim 3, characterized in that: A vibrator (408) is installed on the sheath flow channel (404).

7. A pen tip protective sleeve mounting wire, characterized in that: The device includes a feeding line (1), a pen barrel direction detection module (2), a robotic arm module (3), a tiered conveyor chain (6), and a pen tip protective sleeve installation mechanism (4) as described in any one of claims 1-6. The pen barrel direction detection module (2) is used to detect the posture of the pen barrel on the feeding line (1). The robotic arm module (3) is electrically connected to the pen barrel direction detection module (2). The robotic arm module (3) is used to grasp the pen barrel and adjust its posture. The tiered conveyor chain (6) is used to receive and transport the pen barrel after its posture has been adjusted by the robotic arm module (3). The pen tip protective sleeve installation mechanism (4) installs a protective sleeve on the pen barrel on the tiered conveyor chain (6).

8. The pen tip protective sleeve mounting wire according to claim 7, characterized in that: The pen tip protective sleeve installation line also includes a pen barrel orientation detection module (7) and a pen barrel turning module (8). The pen barrel orientation detection module (7) is used to detect the orientation of the pen on the ladder conveyor chain (6). The pen barrel turning module (8) is electrically connected to the pen barrel orientation detection module (7). The pen barrel turning module (8) is used to adjust the pen that is placed in reverse.

9. The pen tip protective sleeve mounting wire according to claim 8, characterized in that: The pen tip protective sleeve installation line also includes a protective sleeve detection module (9) and a defective product rejection module (11). The protective sleeve detection module (9) is used to detect whether the protective sleeve is installed and / or whether it is installed correctly. The defective product rejection module (11) is electrically connected to the protective sleeve detection module (9) and is used to reject defective products.

10. The pen tip protective sleeve mounting wire according to claim 9, characterized in that: The pen tip protective sleeve installation line also includes a protective sleeve detection module, which includes a protective sleeve visual inspection module (162) and a protective sleeve material distribution module (163). The protective sleeve visual inspection module (162) inspects the protective sleeve, and the protective sleeve material distribution module (163) is electrically connected to the protective sleeve visual inspection module (162) to distribute the protective sleeves so that qualified protective sleeves can enter the subsequent installation steps.

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