Automatic assembly equipment for double-bead writing pen

Abstract

The utility model provides automatic assembling equipment for a double-bead writing pen. The automatic assembling equipment comprises an indexing turntable, a pen point clamp, a pen point discharging mechanism, a pen point pressing mechanism, a ball bead discharging mechanism, an elastic piece discharging mechanism, a water guide core discharging mechanism, a dotting mechanism and a detection mechanism. And the indexing turntable can rotate. And the pen point clamp is fixed on the indexing turntable. The pen point discharging mechanism, the pen point pressing mechanism, the ball discharging mechanism, the elastic piece discharging mechanism and the ink refill discharging mechanism conduct pen point discharging, pen point pressing, ball discharging, elastic piece discharging and ink refill discharging correspondingly. The dotting mechanism forms a limiting groove in the pen point. The detection mechanism detects the installation states of the pen point, the ball, the elastic piece and the ink guiding core. The control mechanism controls the mechanisms to achieve automatic assembly of the double-bead writing pen.

Description

Technical Field

[0001] The present application relates to the field of writing pens, and in particular to an automatic assembly device for double-ballpoint writing pens. Background Art

[0002] The double-ball writing pen is a straight liquid writing pen with smooth writing and balanced ink delivery. Through the thrust of the valve ball and the elastic part, the writing ball at the pen tip and the rim of the pen tip can maintain zero gap airtightness at all times. No auxiliary structure is required to protect the airtightness of the pen tip, and it can also ensure that the pen tip will not have problems such as ink seepage and ink drying, and can maintain a good writing state at all times.

[0003] The valve ball, elastic parts, water guide core, etc. in the double-ball writing pen are all precision components of the product. The smallest size is only 0.3 mm and the largest size is less than 1.5 mm. The current automatic assembly equipment is very inefficient, with an hourly production capacity of less than 1500PS / h. It is also very easy to cause parts to be missed, damaged or improperly installed. The product defective rate is about 3%, and they need to be manually inspected one by one, which results in low efficiency and human misdetection. Utility Model Content

[0004] The main purpose of the present application is to overcome at least one defect of the above-mentioned prior art and to provide an automatic assembly device for double-ballpoint writing pens that does not require manual inspection, has high production efficiency and low product defect rate.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] According to one aspect of the present application, there is provided an automatic assembly device for a double-ballpoint writing pen, wherein the automatic assembly device for a double-ballpoint writing pen comprises a dividing turntable, a nib clamp, a nib feeding mechanism, a nib pressing mechanism, a ball feeding mechanism, an elastic member feeding mechanism, a water guide core feeding mechanism, a dotting mechanism, a detection mechanism and a control mechanism. The dividing turntable can rotate; the nib clamp is fixed to the dividing turntable to clamp the nib of the writing pen; the nib feeding mechanism transports the nib to the nib clamp; the nib pressing mechanism presses the nib tightly against the nib clamp; the ball feeding mechanism transports the ball to the nib in the nib clamp; the elastic member feeding mechanism transports the elastic member to the nib containing the ball; the water guide core feeding mechanism transports the water guide core to the nib containing the elastic member; the dotting mechanism forms a limit groove on the nib; and the detection mechanism detects the installation status of the nib, the ball, the elastic member and the water guide core. The nib feeding mechanism, the nib pressing mechanism, the ball feeding mechanism, the elastic member feeding mechanism, the water core feeding mechanism, the dotting mechanism and the detection mechanism are arranged around the indexing turntable. The control mechanism controls the automatic assembly equipment of the double ball writing pen.

[0007] According to one embodiment of the present application, the nib unloading mechanism includes a nib vibration disk, a nib conveying structure, and a lifting structure. The nib vibration disk stores the nibs and vibrates the nibs out; the nib conveying structure receives the nibs that have been unloaded from the nib vibration disk and conveys the nibs to the nib fixture; the lifting structure lifts the nib conveying structure to unload the nibs.

[0008] According to one of the embodiments of the present application, the nib conveying structure includes a main body, a nib transport block, a stopper, a drive cylinder, a top column and a spring. The nib transport block is fixed to the main body and has a feed port and a discharge port, the feed port receives the nib that escapes from the nib vibration plate, and the discharge port conveys the nib to the nib fixture; the stopper is rotatably connected to the main body and closes or opens the discharge port; the drive cylinder drives the main body to move up and down; the top column is arranged on the side of the stopper away from the main body and has a distance from the stopper, and the top column cooperates with the stopper to open the discharge port; the two ends of the spring are respectively connected to the main body and the stopper, and provide a force to push the stopper away from the main body, so that the stopper closes the discharge port.

[0009] According to one of the embodiments of the present application, the middle portion of the stopper is connected to the main body via a rotating shaft, one end of the stopper extends to the discharge port, and the spring and the top column are both arranged at the other end of the stopper.

[0010] According to one embodiment of the present application, the pen tip pressing mechanism includes a downward pressing structure, a lifting shaft and an upward pushing structure. The downward pressing structure includes a lever and a pressing shaft, and the lever is connected to the pressing shaft and drives the pressing shaft to press downward. The lifting shaft drives the lever. The upward pushing structure is arranged on the side of the pen tip fixture facing away from the downward pressing structure, and cooperates with the downward pressing structure to press the pen tip in the pen tip fixture.

[0011] According to one of the embodiments of the present application, the pen head pressing mechanism also includes a connecting rod, one end of the lever is connected to the pressing shaft, the other end is connected to the connecting rod, and the other end of the connecting rod is connected to the lifting shaft.

[0012] According to one of the embodiments of the present application, the pen tip clamp includes a clamp head and a locking ring, the clamp head clamps the pen tip, the locking ring is arranged on the outer periphery of the clamp head and can move up and down, and the pressure shaft presses the locking ring down to press the pen tip tightly against the clamp head.

[0013] According to one embodiment of the present application, the elastic member unloading mechanism includes a support body, an elastic member transport block, an elastic member stopper, an elastic member driving cylinder, an elastic member driving cylinder, an elastic member top column and a spring. The elastic member transport block is fixed to the support body and has a feed port and a discharge port, the feed port receives the elastic member, and the discharge port delivers the elastic member to the pen tip. The elastic member stopper is rotatably connected to the support body and closes or opens the discharge port. The elastic member driving cylinder drives the support body to move up and down. The elastic member top column is arranged on a side of the elastic member stopper away from the support body and has a distance from the elastic member stopper, and the elastic member top column cooperates with the elastic member stopper to open the discharge port. The two ends of the spring are respectively connected to the support body and the elastic member stopper, and provide a force to push the elastic member stopper away from the support body, so that the elastic member stopper closes the discharge port. One end of the elastic member stopper extends to the discharge port, and the spring and the elastic member top column are both arranged at the other end of the elastic member stopper.

[0014] According to one of the embodiments of the present application, the elastic member unloading mechanism further includes a storage block, a blocking structure and a lifting structure. The storage block is disposed between the discharge port of the elastic member transport block and the nib in the nib clamp to store the elastic member falling from the discharge port. The blocking structure is disposed between the storage block and the nib to prevent the elastic member from falling from the storage block. The lifting structure includes a lifting cylinder and a lifting shaft, and the lifting cylinder drives the lifting shaft to lift the elastic member in the storage block.

[0015] According to one embodiment of the present application, the water-introducing core unloading mechanism comprises a hopper, a pushing cylinder and a clamping claw. The hopper stores the water-introducing core. The pushing cylinder pushes the water-introducing core out. The clamping claw clamps the water-introducing core and places it on the pen head connected to the elastic member.

[0016] According to one of the embodiments of the present application, the detection mechanism includes a nib detection mechanism, a ball detection mechanism, an elastic member detection mechanism and a water diversion core detection mechanism. The nib detection mechanism is disposed between the nib pressing mechanism and the ball feeding mechanism to detect whether a nib exists in the nib fixture. The ball detection mechanism is disposed between the ball feeding mechanism and the elastic member feeding mechanism to detect whether a ball exists in the nib. The elastic member detection mechanism is disposed between the elastic member feeding mechanism and the water diversion core feeding mechanism to detect whether an elastic member exists in the nib. The water diversion core detection mechanism is disposed between the water diversion core feeding mechanism and the dotting mechanism to detect whether the water diversion core is connected to the nib.

[0017] According to one embodiment of the present application, the water guide core detection mechanism includes a detection ring, a detection block and a photoelectric detector. The detection ring presses the water guide core. When the detection ring is pressed, the detection block rises, and the photoelectric detector detects the groove on the detection block to detect whether the water guide core is connected to the pen tip.

[0018] According to one embodiment of the present application, the automatic assembly equipment further includes a frame and an assembly platform. A power mechanism and a transmission mechanism are arranged in the frame to drive the indexing turntable to rotate. The assembly platform is arranged on the frame and carries the indexing turntable, the nib feeding mechanism, the nib pressing mechanism, the ball feeding mechanism, the elastic part feeding mechanism, the water diversion core feeding mechanism, the dotting mechanism and the detection mechanism.

[0019] According to one embodiment of the present application, the automatic assembly equipment further includes a fixture opening mechanism, a removal mechanism and a cycle detection mechanism. The fixture opening mechanism opens the pen tip fixture to release the assembled finished or semi-finished writing pen. The removal mechanism removes the finished or semi-finished writing pen from the assembly equipment. The cycle detection mechanism detects whether the pen tip fixture is opened to perform the next assembly cycle.

[0020] It can be seen from the above technical solution that the advantages and positive effects of the automatic assembly equipment for double-ballpoint writing pens proposed in this application are:

[0021] The automatic assembly equipment for double-ball writing pens proposed in this application can timely detect the installation status of the pen tip, ball, elastic member and water guide core by setting various mechanisms and detection mechanisms around the indexing turntable in the assembly order, without the need for manual detection, thus avoiding the phenomenon of missing, damaged or improper installation of parts and reducing the product defect rate. The defect rate of products produced by the automatic assembly equipment of this application reaches below 0.05%, which is greatly reduced compared with the 3% product defect rate of current automatic assembly equipment.

[0022] The automatic assembly equipment for double-ballpoint writing pens proposed in this application has a pen head fixture set on the edge of the indexing turntable, and the rotation of the indexing turntable is controlled by a control mechanism, and the double-ballpoint writing pens are fully automatically assembled in cooperation with various assembly mechanisms and detection mechanisms set around the turntable, with high production efficiency. The hourly production capacity of the automatic assembly equipment of this application reaches 3000PS / h, which is less than 1500PS / h of the current equipment, and the production efficiency is greatly improved.

[0023] The automatic assembly method of double-ballpoint writing pens of the present application uses a control system to control the rotation of a dividing turntable to complete the assembly of each stage of the writing pen, and performs real-time detection, thereby achieving fully automatic assembly, improving production efficiency, reducing product defective rates, and saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Various objects, features and advantages of the present application will become more apparent by considering the following detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are merely exemplary illustrations of the present application and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always represent the same or similar parts. Among them:

[0025] Figure 1 It is a schematic structural diagram of the double-ball writing pen of the present application.

[0026] Figure 2 It is a top view of the automatic assembly equipment of double ballpoint writing pens of the present application.

[0027] Figure 3 It is a structural schematic diagram of the automatic assembly equipment of the double ballpoint writing pen of the present application.

[0028] Figure 4 It is a structural schematic diagram of the automatic assembly equipment for double-ballpoint writing pens of the present application (without the electrical box).

[0029] Figure 5 It is a schematic diagram of the structure of the upper layer inside the frame of the automatic assembly equipment for double-ballpoint writing pens of the present application.

[0030] Figure 6 It is a structural schematic diagram of the nib feeding mechanism in the automatic assembly equipment of the double-ballpoint writing pen of the present application.

[0031] Figure 7 yes Figure 6 The front view of the nib feeding mechanism shown.

[0032] Figure 8 yes Figure 7 AA partial section view in.

[0033] Fig. 9 It is a structural schematic diagram of the pen head pressing mechanism in the automatic assembly equipment of the double-ball writing pen of the present application.

[0034] Fig.10 It is a partial cross-sectional view of the pen tip detection mechanism in the automatic assembly equipment of the double-ball writing pen of the present application.

[0035] Fig.11 It is a structural schematic diagram of the pen tip clamp (unlocked state) in the automatic assembly equipment of the double-ball writing pen of the present application.

[0036] Fig.12 yes Fig.11 sectional view of .

[0037] Fig.13 It is a structural schematic diagram of the pen tip clamp (locked state) in the automatic assembly equipment of the double-ball writing pen of the present application.

[0038] Fig.14yes Fig.13 sectional view of .

[0039] Fig.15 It is a structural schematic diagram of a ball feeding mechanism in the automatic assembly equipment of a double-ball writing pen of the present application.

[0040] Fig.16 Fig.15 A partial cross-sectional view of .

[0041] Fig.17 It is a partial cross-sectional view of the ball detection mechanism in the automatic assembly equipment of the double-ball writing pen of the present application.

[0042] Fig.18 It is a structural schematic diagram of the elastic part feeding mechanism in the automatic assembly equipment of the double ballpoint writing pen of the present application.

[0043] Fig.19 yes Fig.18 A partial cross-sectional view of .

[0044] Fig. 20 It is a partial cross-sectional view of the elastic member detection mechanism in the automatic assembly equipment of the double-ballpoint writing pen of the present application.

[0045] Fig.21 It is a structural schematic diagram of a water-guiding core feeding mechanism in the automatic assembly equipment for double-ballpoint writing pens of the present application.

[0046] Fig. 22 It is a structural schematic diagram of the water guide core detection mechanism in the automatic assembly equipment of the double ball writing pen of the present application.

[0047] Fig.23 It is a structural schematic diagram of the dotting mechanism in the automatic assembly equipment of the double-ballpoint writing pen of the present application.

[0048] Fig.24 yes Fig.23 BB section view.

[0049] Fig.25 It is a structural schematic diagram of a clamp push-opening mechanism in the automatic assembly equipment of double-ballpoint writing pens of the present application.

[0050] Fig.26 It is a structural schematic diagram of the removal mechanism and the circulation detection mechanism in the automatic assembly equipment of the double-ballpoint writing pen of the present application.

[0051] The following are the descriptions of the reference numerals:

[0052] 1. Double ballpoint writing pen;

[0053] 10. The tip of a writing pen;

[0054] 11. Balls;

[0055] 12. Elastic parts;

[0056] 13. Water diversion core;

[0057] 14. Limiting slot;

[0058] 100. Automatic assembly equipment for double ballpoint writing pens;

[0059] 101. Indexing turntable;

[0060] 102. Pen holder;

[0061] 103. Pen tip feeding mechanism;

[0062] 104. Pen head pressing mechanism;

[0063] 105. Ball feeding mechanism;

[0064] 106. Elastic parts feeding mechanism;

[0065] 107. Water diversion core unloading mechanism;

[0066] 108. Management agency;

[0067] 109. Testing institutions;

[0068] 110. Control agency;

[0069] 111. Clamp opening mechanism;

[0070] 112. Take out the mechanism;

[0071] 113. Cyclic testing agency;

[0072] 114. Rack;

[0073] 115. Assembly table;

[0074] 116. Electric box;

[0075] 117. Power mechanism;

[0076] 118. Transmission mechanism;

[0077] 119. Steering mechanism;

[0078] 201. Clamp head;

[0079] 202. Locking ring;

[0080] 203. Clamping concrete;

[0081] 301. Pen vibrating plate;

[0082] 302. Pen tip conveying structure;

[0083] 303. Lifting structure;

[0084] 401. Downward pressure structure;

[0085] 402. Lifting shaft;

[0086] 403. Top structure;

[0087] 404. Connecting rod;

[0088] 501. Bead structure;

[0089] 502. Ball jar;

[0090] 503. Pipeline;

[0091] 601. Support body;

[0092] 602. Elastic transport block;

[0093] 603. Elastic member stopper;

[0094] 604. Elastic member drive cylinder;

[0095] 605. Elastic top column;

[0096] 607. Storage block;

[0097] 608. Material blocking structure;

[0098] 609. Top material structure;

[0099] 701. Hopper;

[0100] 702. Push cylinder;

[0101] 703. Gripping jaws;

[0102] 801. Cylinder;

[0103] 802. Management Department;

[0104] 803. Framework;

[0105] 901. Pen tip detection mechanism;

[0106] 902. Ball testing agency;

[0107] 903. Elastic parts detection mechanism;

[0108] 904. Water core testing agency;

[0109] 1001. Encoder;

[0110] 1201. Finished jaws;

[0111] 1202. Semi-finished jaws;

[0112] 1203. Finished product conveyor belt;

[0113] 1204. Semi-finished product placement box;

[0114] 3021. Subject;

[0115] 3022. Pen transport block;

[0116] 3023. Block;

[0117] 3024. Driving cylinder;

[0118] 3025. Top column;

[0119] 3026, 606. Spring;

[0120] 3031. Cam;

[0121] 3032. Lifting block;

[0122] 4011. Leverage;

[0123] 4012. Finale;

[0124] 5011. Steel balls;

[0125] 5012. Beading axis;

[0126] 6081. Material blocking plate;

[0127] 6082. Material blocking cylinder;

[0128] 6091. Ejector shaft;

[0129] 6092. Top material cylinder;

[0130] 9031. Positioning sleeve;

[0131] 9041. Detection circle;

[0132] 9044. Mould closing;

[0133] 9011, 9021, 9032. Detection axis;

[0134] 9012, 9022, 9033, 9042. Detection blocks;

[0135] 9013, 9023, 9034, 9043. Photodetector. DETAILED DESCRIPTION

[0136] Typical embodiments that embody the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various changes in different embodiments without departing from the scope of the present application, and the descriptions and drawings therein are essentially for illustrative purposes rather than for limiting the present application.

[0137] In the following description of different exemplary embodiments of the present application, reference is made to the accompanying drawings, which form a part of the present invention, and in which different exemplary structures, systems and steps that can implement multiple aspects of the present application are shown by way of example. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the present application. Moreover, although the terms "upper", "lower", "between", etc. can be used in this specification to describe different exemplary features and elements of the present application, these terms are used herein only for convenience, such as according to the direction of the examples described in the accompanying drawings. Nothing in this specification should be understood as requiring a specific three-dimensional direction of the structure to fall within the scope of the present application. When introducing the elements / components / etc. described and / or illustrated herein, the terms "first", "second" and "third" etc. are used to indicate the presence of one or more elements / components / etc. The terms "comprising", "including" and "having" are used to indicate the meaning of open-ended inclusion and mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.

[0138] See also Figure 1 The double ball writing pen 1 of the present application comprises a pen head 10, a ball 11, an elastic member 12 and a water guide core 13. A limiting groove 14 is provided inwardly near the water guide core 13 of the pen head 10 to limit the position of the water guide core 13.

[0139] like Figure 2As shown, the automatic assembly equipment 100 of double-ballpoint writing pens of the present application includes a dividing turntable 101, a nib clamp 102, a nib feeding mechanism 103, a nib pressing mechanism 104, a ball feeding mechanism 105, an elastic part feeding mechanism 106, a water guide core feeding mechanism 107, a dotting mechanism 108, a detection mechanism 109 and a control mechanism 110. The dividing turntable 101 is rotatable; the nib clamp 102 is fixed to the dividing turntable 101, clamping the nib 10 of the writing pen; the nib unloading mechanism 103 conveys the nib 10 to the nib clamp 102; the nib pressing mechanism 104 presses the nib 10 tightly against the nib clamp 102; the ball unloading mechanism 105 conveys the ball 11 to the nib 10 in the nib clamp 102; the elastic member unloading mechanism 106 conveys the elastic member 12 to the nib 10 accommodating the ball 11; the water-guiding core unloading mechanism 107 conveys the water-guiding core 13 to the nib 10 accommodating the elastic member 12; the dotting mechanism 108 forms a limiting groove in the nib 10; the detection mechanism 109 detects the installation status of the nib 10, the ball 11, the elastic member 12 and the water-guiding core 13. The nib feeding mechanism 103, the nib pressing mechanism 104, the ball feeding mechanism 105, the elastic member feeding mechanism 106, the water core feeding mechanism 107, the dotting mechanism 108 and the detection mechanism 109 are arranged around the indexing turntable 101. The control mechanism 110 controls the double ball writing pen automatic assembly device 100.

[0140] The automatic assembly equipment 100 for double-ball writing pens proposed in the present application adopts a rotatable precision indexing turntable 101, and a precision pen tip fixture 102 is arranged on the edge of the indexing turntable 101. Various mechanisms 103-108 and a detection mechanism 109 are arranged around the indexing turntable in accordance with the assembly sequence. The rotation of the indexing turntable 101 is controlled by a control mechanism 110, and the double-ball writing pens are fully automatically assembled in coordination with the various assembly mechanisms 103-108 and the detection mechanism 109 arranged around the turntable, with high production efficiency. In addition, the installation status of the pen tip 10, the ball 11, the elastic member 12 and the water guide core 13 can be detected in time, and no manual inspection is required, thereby avoiding the phenomenon of missing, damaged or improper installation of components and reducing the product defect rate. The defect rate of the products produced by the automatic assembly equipment of the present application reaches below 0.05%, and the hourly production capacity reaches 3000PS / h.

[0141] The precision indexing turntable 101 is arranged on the assembly table 115 through a precision divider. In this embodiment, 32 pen tip fixtures 102 are arranged at equal intervals on the edge of the precision indexing turntable. In some other embodiments, other numbers of pen tip fixtures 102 may also be arranged.

[0142] In this embodiment, see Figures 3 to 5The automatic assembly equipment 100 also includes a frame 114 and an assembly table 115. A power mechanism 117 and a transmission mechanism 118 are arranged in the frame 114 to drive the indexing turntable 101 to rotate. The assembly table 115 is arranged on the frame 114, and carries the indexing turntable 101, the nib feeding mechanism 103, the nib pressing mechanism 104, the ball feeding mechanism 105, the elastic member feeding mechanism 106, the water diversion core feeding mechanism 107, the dotting mechanism 108 and the detection mechanism 109. The interior of the frame 114 is divided into two layers, the upper and lower layers, and the power mechanism 117 and the transmission mechanism 118 are arranged inside to avoid dust, maintain the normal and accurate operation of the power mechanism 117 and the transmission mechanism 118, ensure the accurate rotation of the indexing turntable 101, and help improve the assembly accuracy, avoid assembly omissions, damage or inadequate installation and other phenomena.

[0143] in Figure 3 The figure also shows an electric box 116, which is arranged beside the frame 114. The electric box 116 is provided with a control mechanism 110, which includes a programmable controller, a frequency converter / driver, an actuator, etc., all of which are commonly used in the prior art and will not be described in detail here. The figure shows a control panel. Figure 4 It can be seen that the interior of the rack 114 is divided into two layers, an upper layer and a lower layer. Figure 5 The upper structure of the frame 114 is shown in the figure, which includes a part of the transmission mechanism 118 and the steering mechanism 119. The steering mechanism 119 is mainly used to drive the indexing turntable 101 to rotate. An encoder 1001 is also arranged next to the steering mechanism 119. The transmission mechanism 118 is mainly composed of transmission components such as a reduction box, a transmission shaft, a bevel gear, a sprocket, and a cam. The transmission components can be conventionally used and will not be described in detail here. The frame 114 is provided with feet and casters below.

[0144] In this embodiment, see Figure 6 to Figure 7 The pen tip unloading mechanism 103 includes a pen tip vibration disk 301, a pen tip conveying structure 302 and a lifting structure 303. The pen tip vibration disk 301 stores the pen tip 10 and vibrates the pen tip 10 out; the pen tip conveying structure 302 receives the pen tip 10 that has fallen out of the pen tip vibration disk 301, and conveys the pen tip 10 to the pen tip fixture 102; the lifting structure 303 lifts the pen tip conveying structure 302 to unload the pen tip 10. The pen tip conveying structure 302 receives the writing pen tip 10 that has fallen off the pen tip vibration disk 301, and then conveys the pen tip 10 in the pen tip conveying structure 302 to the pen tip fixture 102 through the lifting structure 303. This can achieve precise control and ensure that the pen tip 10 falls into the pen tip fixture 102, which is beneficial to improving assembly efficiency and reducing product defective rates. Figure 7 The middle lifting structure 303 includes a cam 3031 and a lifting block 3032 . The rotation of the cam 3031 drives the lifting block 3032 to move up and down.

[0145] In this embodiment, see Figure 8 The pen tip conveying structure 302 includes a main body 3021, a pen tip transport block 3022, a stopper 3023, a driving cylinder 3024, a top column 3025 and a spring 3026. The nib transport block 3022 is fixed to the main body 3021 and has a feed port and a discharge port. The feed port receives the nib 10 that escapes from the nib vibration disk 301, and the discharge port transports the nib 10 to the nib fixture 102; the stopper 3023 is rotatably connected to the main body 3021, and closes or opens the discharge port; the drive cylinder 3024 drives the main body 3021 to move up and down; the top column 3025 is arranged on the side of the stopper 3023 away from the main body 3021, and has a distance from the stopper 3023, and the top column 3025 cooperates with the stopper 3023 to open the discharge port; the two ends of the spring 3026 are respectively connected to the main body 3021 and the stopper 3023, and provide a force to push the stopper 3023 away from the main body 3021, so that the stopper 3023 closes the discharge port. The stopper 3023 and the spring 3026 cooperate with each other to realize the opening and closing of the discharge port of the nib transport block 3022, with a simple structure and high reliability, and the opening and closing of the discharge port can be realized by controlling the action of the drive cylinder 3024, with precise action and high efficiency.

[0146] In this embodiment, the middle part of the stopper 3023 is connected to the main body 3021 through a rotating shaft, one end of the stopper 3023 extends to the discharge port, and the spring 3026 and the top column 3025 are both arranged at the other end of the stopper 3023. The above structure can realize that the stopper 3023 opens the discharge port, automatically resets after the nib 10 is discharged, and performs the next nib discharge action, which has high production efficiency.

[0147] In this embodiment, see Fig. 9 The pen tip pressing mechanism 104 includes a pressing structure 401, a lifting shaft 402 and an upper structure 403. The pressing structure 401 includes a lever 4011 and a pressing shaft 4012, and the lever 4011 is connected to the pressing shaft 4012 and drives the pressing shaft 4012 to press down. The lifting shaft 402 drives the lever 4011. The upper structure 403 is arranged on the side of the pen tip fixture 102 facing away from the pressing structure 401, and cooperates with the pressing structure 401 to press the pen tip 10 in the pen tip fixture 102. The lifting shaft 402 drives the pressing structure 401 through the lever 4011, and cooperates with the upper structure 403, so that the pen tip 10 that falls into the pen tip fixture 102 can be pressed, which is convenient for subsequent assembly.

[0148] In this embodiment, the pen head pressing mechanism 104 further includes a connecting rod 404, one end of the lever 4011 is connected to the pressing shaft 4012, and the other end is connected to the connecting rod 404, and the other end of the connecting rod 404 is connected to the lifting shaft 402. The setting of the connecting rod 404 can make the lifting shaft 402 shorter, and the lifting shaft 402 is installed at a position close to the assembly platform 115, which is conducive to extending the service life of the lifting shaft 402. The setting of the connecting rod 404 is also conducive to convenient maintenance.

[0149] In this embodiment, see Figures 11 to 14 The pen tip fixture 102 includes a fixture head 201 and a locking ring 202. The fixture head 201 clamps the pen tip 10. The locking ring 202 is arranged on the outer periphery of the fixture head 201 and can move up and down. The pressing shaft 4012 presses down the locking ring 202 to press the pen tip 10 against the fixture head 201. The fixture head 201 of the pen tip fixture 102 is mainly used to clamp the writing pen tip 10, and the locking ring 202 is used to clamp or loosen the pen tip 10. The locking ring 202 cooperates with the pressing shaft 4012 to achieve pen tip compression, realizes automatic compression, and provides a good prerequisite for subsequent assembly.

[0150] The pen tip clamp 102 further includes a clamp body 203 disposed on the outer periphery of the locking ring 202 . The locking ring 202 can move up and down in the clamp body 203 to lock or release the clamp head 201 .

[0151] In this embodiment, see Figure 15 to Figure 16 The ball discharging mechanism 105 of the present application includes a ball tank 502 and a beading structure 501. The ball tank 502 transports the ball 11 to a suitable position through a pipe 503, and the beading shaft 5012 in the beading structure 501 drives the steel needle 5011 to hit the ball 11 downward, so that the ball 11 is knocked out of the position in the pipe 503 and falls into the pen tip 10 in the pen tip fixture 102, thereby assembling the ball. The ball discharging mechanism 1 adopts the ball discharging mechanism 1 commonly used in the prior art.

[0152] In this embodiment, see Figure 18 to Figure 19, the elastic member unloading mechanism 106 includes a support body 601, an elastic member transport block 602, an elastic member stopper 603, an elastic member driving cylinder 604, an elastic member driving cylinder 604, an elastic member top column 605 and a spring 606. The elastic member transport block 602 is fixed to the support body 601 and has a feed port and a discharge port. The feed port receives the elastic member 12, and the discharge port transports the elastic member 12 into the pen tip 10. The elastic member stopper 603 is rotatably connected to the support body 601 and closes or opens the discharge port. The elastic member driving cylinder 604 drives the support body 601 to move up and down. The elastic member top column 605 is arranged on a side of the elastic member stopper 603 away from the support body 601, and has a distance from the elastic member stopper 603. The elastic member top column 605 cooperates with the elastic member stopper 603 to open the discharge port. The two ends of the spring 606 are respectively connected to the support body 601 and the elastic member stopper 603, and provide a force to push the elastic member stopper 603 away from the support body 601, so that the elastic member stopper 603 closes the discharge port. One end of the elastic member stopper 603 extends to the discharge port, and the spring 606 and the elastic member top column 605 are both arranged at the other end of the elastic member stopper 603. The elastic member stopper 603 and the spring cooperate with each other to realize the opening and closing of the discharge port of the elastic member transport block 602, with a simple structure and high reliability, and the discharge port can be opened and closed by controlling the action of the elastic member driving cylinder 604, with precise action, which is conducive to improving the assembly accuracy and assembly efficiency of the elastic member.

[0153] In this embodiment, the elastic member unloading mechanism 106 further includes a storage block 607, a blocking structure 608 and a top-loading structure 609. The storage block 607 is arranged between the discharge port of the elastic member transport block 602 and the nib in the nib fixture 102, and stores the elastic member 12 falling from the discharge port. The blocking structure 608 is arranged between the storage block 607 and the nib 10, and prevents the elastic member 12 from falling from the storage block 607. The top-loading structure 609 includes a top-loading cylinder 6092 and a top-loading shaft 6091, and the top-loading cylinder 6092 drives the top-loading shaft 6091 to hold the elastic member 12 in the storage block 607. Since the elastic members are easily connected to each other, the storage block 607, the blocking structure 608 and the top-loading structure 609 are designed, and the elastic members connected together can be separated before unloading, which avoids mistakes in the assembly process, ensures the correctness and accuracy of the elastic member assembly, and can improve the product yield and the production capacity. The material blocking structure 608 includes a material blocking plate 6081 and a material blocking cylinder 6082 . The material blocking plate 6081 blocks the bottom of the material storage block 607 , and the material blocking cylinder 6082 drives the material blocking plate 6081 to move.

[0154] In this embodiment, see Fig.21The water-introducing core unloading mechanism 107 includes a hopper 701, a pushing cylinder 702, and a clamp 703. The hopper 701 stores the water-introducing core 13. The pushing cylinder 702 pushes the water-introducing core 13 out. The clamp 703 clamps the water-introducing core 13 and places it on the pen head 10 connected to the accommodating elastic member 12. The control mechanism can accurately control the pushing cylinder, which can improve the efficiency and accuracy of unloading the water-introducing core.

[0155] In this embodiment, see Figure 2 , Fig.10 , Fig.17 , Fig. 20 and Fig. 22 , the detection mechanism 109 includes a nib detection mechanism 901, a ball detection mechanism 902, an elastic member detection mechanism 903 and a water diversion core detection mechanism 904. The nib detection mechanism 901 is arranged between the nib pressing mechanism 104 and the ball feeding mechanism 105, and detects whether there is a nib 10 in the nib fixture 102. The ball detection mechanism 902 is arranged between the ball feeding mechanism 105 and the elastic member feeding mechanism 106, and detects whether there is a ball 11 in the nib. The elastic member detection mechanism 903 is arranged between the elastic member feeding mechanism 106 and the water diversion core feeding mechanism 107, and detects whether there is an elastic member 12 in the nib. The water diversion core detection mechanism 904 is arranged between the water diversion core feeding mechanism 107 and the dotting mechanism 108, and detects whether the water diversion core 13 is connected to the nib 10. A detection mechanism is set between each installation mechanism to detect the installation results. It can timely discover installation problems in the assembly process to avoid waste of production materials and production time. It does not require manual inspection, avoids manual misdetection, and improves detection efficiency.

[0156] in, Fig.10 The pen tip detection mechanism 901 shown, Fig.17 The ball detection mechanism 902 and Fig. 20 The elastic member detection mechanism 903 shown is that the detection mechanism 109 moves downward. When the detection shafts 9011, 9021, 9032 touch the object to be detected, the detection shafts 9011, 9021, 9032 drive the detection blocks 9012, 9022, 9033 to move upward. The detection blocks 9012, 9022, 9033 are provided with grooves. The photoelectric detectors 9013, 9023, 9034 judge whether the object to be detected is installed through the detection grooves. The elastic member detection mechanism 903 is also provided with a positioning sleeve 9031 for positioning the elastic member 12 to be detected. The photoelectric detectors 9013, 9023, 9034 can use a beam-type micro photoelectric sensor or other types of photoelectric sensors.

[0157] In this embodiment, see Fig. 22The water-drawing core detection mechanism 904 includes a detection ring 9041, a detection block 9042 and a photoelectric detector 9043. The detection ring 9042 presses the water-drawing core 13. When the detection ring 9041 is pressed, the detection block 9042 rises, and the photoelectric detector 9043 detects the groove on the detection block 9042 to detect whether the water-drawing core 13 is connected to the pen tip 10. The water-drawing core detection mechanism 904 can both detect the water-drawing core and press the water-drawing core, which saves production processes, improves production efficiency, reduces assembly mechanisms, and reduces costs. Since the water-drawing core is relatively long, the water-drawing core detection device 904 also includes a mold clamping 9044, which is pressed and detected after the mold clamping, so that the assembly of the water-drawing core is more firm and reliable. The photoelectric detector 9043 can use a corresponding micro photoelectric sensor, or other types of photoelectric sensors.

[0158] In this embodiment, see Figure 23 to Figure 24 The dotting mechanism 108 includes a cylinder 801, a frame 803 and a dotting unit 802. The dotting mechanism can be a dotting mechanism commonly used in the prior art.

[0159] In this embodiment, see Figure 25 to Figure 26 The automatic assembly equipment 100 also includes a clamp opening mechanism 111, a removal mechanism 112 and a circulation detection mechanism 113109. The clamp opening mechanism 111 opens the pen tip clamp 102 to release the assembled finished or semi-finished writing pen. The removal mechanism 112 takes out the finished or semi-finished product from the assembly equipment. The circulation detection mechanism 113109 detects whether the pen tip clamp 102 is opened to proceed to the next assembly cycle. The clamp opening mechanism 111, the removal mechanism 112 and the circulation detection mechanism 113 cooperate with each other to promptly remove the assembled finished or semi-finished product from the assembly equipment, and reset the assembly equipment as soon as possible to facilitate the next assembly cycle, which is beneficial to the automatic connection of the assembly, improves the assembly efficiency, and fully realizes the assembly automation. Among them Fig.26 The taking-out mechanism 112 is shown to include a finished product clamp 1201 , a semi-finished product clamp 1202 , a finished product conveyor belt 1203 , and a semi-finished product placement box 1204 .

[0160] The above is a detailed description of several exemplary embodiments of the automatic assembly equipment for double-ballpoint writing pens proposed in the present application. The following is an exemplary description of the automatic assembly method for double-ballpoint writing pens proposed in the present application.

[0161] Combined with Figures 1 to 26The automatic assembly method of the double-ball writing pen proposed in the present application is specifically as follows: Step S1: the nib feeding mechanism 103 conveys the nib 10 to the nib fixture 102; Step S2: the nib pressing mechanism 104 presses the nib 10 tightly against the nib fixture 102; Step S3: the detection mechanism 109 detects whether there is a nib 10 in the nib fixture 102; Step S4: the ball feeding mechanism 105 conveys the ball 11 to the nib 10 in the nib fixture 102; Step S5: the detection mechanism 109 detects whether there is a nib 10 in the nib fixture 102; Step S6: the ball feeding mechanism 105 conveys the ball 11 to the nib 10 in the nib fixture 102; Step S7: the detection mechanism 109 detects whether there is a nib 10 in the nib fixture 102; Step S8: the detection mechanism 109 detects whether there is a nib 10 in the nib fixture 102; Step S9: the detection mechanism 109 detects whether there is a nib 10 in the nib fixture 102; Step S10: the detection mechanism 109 detects whether there is a nib 10 in the nib fixture 102; Step S11: the detection mechanism 109 detects whether there is a nib 10 in the nib fixture 102; Step S12: the detection mechanism 109 detects whether there is a nib 10 in the nib fixture 102; Step S13: the detection mechanism 109 detects whether there is a nib 10 in the nib fixture 102; Step S14: the detection mechanism 109 detects whether there is a nib 10 in the nib fixture 102; 0; step S6: the elastic member unloading mechanism 106 conveys the elastic member 12 to the pen tip 10 accommodating the ball 11; step S7: the detection mechanism 109 detects whether the elastic member 12 exists in the pen tip 10; step S8: the water guide core unloading mechanism 107 conveys the water guide core 13 to be connected to the pen tip 10 accommodating the elastic member 12; step S9: the detection mechanism 109 detects whether the water guide core 13 is assembled correctly; step S10: the dotting mechanism 108 forms a limiting groove 14 in the pen tip 10.

[0162] The above are the steps of the assembly method proposed in this application. A more specific assembly process, that is, the detailed use process of the double-ballpoint writing pen automatic assembly device 100 is as follows:

[0163] Combined with Figures 1 to 26 The lifting structure 303 of the nib unloading mechanism 103 is lifted and lowered to drive the lower nib station to descend, the driving cylinder 3024 drives the nib transport block 3022 to descend, and the stopper 3023 also descends at the same time. When one end of the stopper 3023 abuts against the top column 3025, the stopper 3023 rotates to open the discharge port, and the nib 10 falls into the nib fixture 102. Due to the setting of the spring 3026, the stopper 3023 can be reset after the nib unloading is completed.

[0164] The indexing turntable 101 drives the nib fixture 102 with the nib 10 installed to rotate to the nib pressing mechanism 104 to press the nib. The top structure 403 supports the nib fixture 102, and the lifting shaft 402 of the nib pressing mechanism 104 drives the connecting rod 404 to rise. Due to the lever 4011, the pressing shaft 4012 moves downward to complete the nib pressing action. After that, the nib detection is performed, and the nib detection mechanism 901 moves downward. When the detection shaft 9011 touches the nib 10, the detection shaft 9011 drives the detection block 9012 to move upward. There is a groove on the detection block 9012, and the photoelectric detector 9013 determines whether the nib 10 is installed through the detection groove. If yes, continue to the next process, if not, stop or alarm, etc.

[0165] Continue to install the ball 11, use the ball unloading mechanism 105 to install the ball 11, and perform testing after installation. After installing the ball 11, install the elastic member 12. The elastic member unloading mechanism 106 is similar to the pen tip unloading mechanism 103, and the operating principle is also similar. The difference is that the elastic member unloading mechanism 106 is also provided with a storage block 607, a material lifting structure 609 and a material blocking structure 608. After the elastic member 12 falls into the storage block 607 through the action of the elastic member baffle 603, the elastic member 12 will not move downward again due to the material blocking plate 6081 provided below the storage block 607. At this time, the material lifting shaft 6091 supports the elastic member 12, the elastic member baffle 603 resets and rises, and the elastic members 12 connected together are separated, the material lifting shaft 6091 withdraws to release the elastic member 12, the material blocking plate 6081 withdraws, and the elastic member 12 falls from the storage block 607 into the pen tip fixture 102, completing the installation of the elastic member.

[0166] After checking whether the elastic member is installed successfully, the water guide core 13 is pushed out by the push cylinder 801, and the rotating clamp 703 clamps the water guide core 13 and installs it to the pen tip. After that, the mold is closed first, and then the detection circle 9041 of the water guide core detection mechanism 904 is driven to descend to press the water guide core, and the installation of the water guide core is checked at the same time.

[0167] After the water guide core 13 is installed, it enters the next station, and the dotting mechanism 108 is used to punch the limit groove 14 at the position of the pen head 10 near the water guide core 13. After that, the fixture is opened, and the finished semi-finished product is taken out and collected for cycle testing to carry out the next assembly cycle.

[0168] Through the use process of the double-ballpoint writing pen automatic assembly device of the present application, it can be concluded that the double-ballpoint writing pen automatic assembly device of the present application can timely detect the installation status of the pen tip, ball, elastic part and water-guiding core by setting the pen tip feeding mechanism, pen tip pressing mechanism, ball feeding mechanism, elastic part feeding mechanism, water-guiding core feeding mechanism, dotting mechanism and detection mechanism around the indexing turntable in the assembly order, without the need for manual inspection, thus avoiding the phenomenon of missing parts, damage or improper installation, etc., and reducing the product defect rate. The pen tip clamp is set at the edge of the indexing turntable, and the rotation of the indexing turntable is controlled by the control mechanism, and the double-ballpoint writing pen is fully automatically assembled in cooperation with the various assembly mechanisms and detection mechanisms set around the turntable, with high production efficiency.

[0169] The automatic assembly method of double-ballpoint writing pens of the present application uses a control system to control the rotation of a dividing turntable to complete the assembly of each stage of the writing pen, and performs real-time detection, thereby achieving fully automatic assembly, improving production efficiency, reducing product defective rates, and saving labor costs.

[0170] In summary, the automatic assembly equipment for double-ball writing pens proposed in the present application includes a dividing turntable, a nib fixture, a nib feeding mechanism, a nib pressing mechanism, a ball feeding mechanism, an elastic part feeding mechanism, a water diversion core feeding mechanism, a dotting mechanism and a detection mechanism. The dividing turntable can rotate. The nib fixture is fixed to the dividing turntable. The nib feeding mechanism, the nib pressing mechanism, the ball feeding mechanism, the elastic part feeding mechanism and the water diversion core feeding mechanism respectively perform nib feeding, nib pressing, ball, elastic part and water diversion core feeding. The dotting mechanism forms a limit groove on the nib. The detection mechanism detects the installation status of the nib, ball, elastic part and water diversion core. The control mechanism controls the above mechanisms to realize the automatic assembly of the double-ball writing pen. The installation status of the nib, ball, elastic part and water diversion core can be detected in time without manual detection, thereby improving product yield and production capacity. The defective rate of the products produced by the automatic assembly equipment of the present application reaches below 0.05%, and the hourly production capacity reaches 3000PS / h, which are greatly improved compared with the existing technology.

[0171] The automatic assembly method of double-ball writing pens proposed in the present application mainly comprises the following steps: Step S1: the nib feeding mechanism delivers the nib to the nib fixture; Step S2: the nib pressing mechanism presses the nib tightly against the nib fixture; Step S3: the detection mechanism detects whether there is a nib in the nib fixture; Step S4: the ball feeding mechanism delivers the ball to the nib in the nib fixture; Step S5: the detection mechanism detects whether there is a ball in the nib; Step S6: the elastic member feeding mechanism delivers the elastic member to the nib accommodating the ball; Step S7: the detection mechanism detects whether there is an elastic member in the nib; Step S8: the water guide core feeding mechanism delivers the water guide core to the nib accommodating the elastic member; Step S9: the detection mechanism detects whether the water guide core is assembled correctly; Step S10: the dotting mechanism forms a limit groove in the nib. The method of the present application realizes full-automatic assembly, improves production efficiency, reduces product defect rate, and saves labor costs.

[0172] In the above exemplary embodiments, the automatic assembly device for double-ballpoint writing pens proposed in the present application is described by taking the application to writing pens as an example. It is easy for those skilled in the art to understand that in order to apply the relevant design of the present application to other aspects, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments, and these changes are still within the scope of the principle of the automatic assembly device for double-ballpoint writing pens proposed in the present application.

[0173] It should be noted that the automatic assembly devices for double ballpoint pens shown in the drawings and described in this specification are only a few examples of many types of automatic assembly devices for double ballpoint pens that can adopt the principles of the present application. It should be clearly understood that the principles of the present application are by no means limited to any details or any components of the automatic assembly devices for double ballpoint pens shown in the drawings or described in this specification.

[0174] The exemplary embodiments of the automatic assembly device for double-ballpoint writing pens proposed in the present application are described and / or illustrated in detail above. However, the embodiments of the present application are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and separately from the other components and / or steps described herein. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "one", "an", and "above" are used to indicate the presence of one or more elements / components / etc.

[0175] The embodiments of the present application are not limited to the specific embodiments described herein, on the contrary, the components of each embodiment can be used independently and separately from the other components described herein. Each component of an embodiment can also be used in combination with other components of other embodiments. In the description of this specification, the description of the terms "one embodiment", "some embodiments", "other embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application embodiment. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0176] Although the automatic assembly device for double-ballpoint writing pens proposed in the present application has been described according to different specific embodiments, those skilled in the art will recognize that the present application can be implemented with modifications within the spirit and scope of the claims.

Claims

1. An automatic assembly device for double ballpoint writing pens, characterized in that: include: An indexing turntable, the indexing turntable being rotatable; A pen tip clamp, the pen tip clamp is fixed to the indexing turntable and clamps the pen tip of the writing pen; A nib feeding mechanism for conveying the nib into the nib fixture; A pen tip pressing mechanism, pressing the pen tip tightly against the pen tip fixture; A ball feeding mechanism for conveying the ball into the nib in the nib fixture; An elastic member feeding mechanism is used to feed the elastic member into the pen head accommodating the ball; A water-guiding core feeding mechanism, which conveys and connects the water-guiding core to the pen head accommodating the elastic member; A dotting mechanism, forming a limiting groove on the pen tip; A detection mechanism for detecting the installation status of the pen tip, ball, elastic member and water guide core; The nib feeding mechanism, the nib pressing mechanism, the ball feeding mechanism, the elastic member feeding mechanism, the water diversion core feeding mechanism, the dotting mechanism and the detection mechanism are arranged around the indexing turntable; A control mechanism controls the automatic assembly equipment of the double-ballpoint writing pen.

2. The automatic assembly equipment for double ballpoint writing pens according to claim 1, characterized in that: The nib feeding mechanism comprises: A pen tip vibration disk, which stores the pen tip and vibrates the pen tip out; A pen tip conveying structure receives the pen tip that escapes from the pen tip vibration plate and conveys the pen tip to the pen tip fixture; The lifting structure lifts the nib conveying structure to unload the nib.

3. The automatic assembly equipment for double ballpoint writing pens as claimed in claim 2, characterized in that: The pen tip conveying structure comprises: main body; A nib transport block is fixed to the main body and has a feed port and a discharge port, wherein the feed port receives the nibs released from the nib vibration plate, and the discharge port transports the nibs to the nib fixture; A stopper; rotatably connected to the main body, and closing or opening the discharge port; A driving cylinder; the driving cylinder drives the main body to move up and down; A top column is arranged on a side of the stopper away from the main body and has a distance from the stopper, and the top column cooperates with the stopper to open the discharge port; A spring, two ends of which are respectively connected to the main body and the stopper, and provide a force to push the stopper away from the main body, so that the stopper closes the discharge port.

4. The automatic assembly equipment for double ballpoint writing pens as claimed in claim 3, characterized in that: The middle part of the stopper is connected to the main body through a rotating shaft, one end of the stopper extends to the discharge port, and the spring and the top column are both arranged at the other end of the stopper.

5. The automatic assembly equipment for double ballpoint writing pens as claimed in claim 1, characterized in that: The pen head pressing mechanism comprises: A pressing structure, the pressing structure comprising a lever and a pressing shaft, the lever being connected to the pressing shaft and driving the pressing shaft to press downward; A lifting shaft, driving the lever; The upper supporting structure is arranged on the side of the pen tip holder facing away from the pressing structure, and cooperates with the pressing structure to press the pen tip in the pen tip holder.

6. The automatic assembly equipment for double ballpoint writing pens as claimed in claim 5, characterized in that: The pen head pressing mechanism also includes a connecting rod, one end of the lever is connected to the pressing shaft, and the other end is connected to the connecting rod, and the other end of the connecting rod is connected to the lifting shaft.

7. The automatic assembly equipment for double ballpoint writing pens according to claim 5 or 6, characterized in that: The pen tip clamp comprises a clamp head and a locking ring, wherein the clamp head clamps the pen tip, the locking ring is arranged at the outer periphery of the clamp head and can move up and down, and the pressing shaft presses the locking ring downward to press the pen tip tightly onto the clamp head.

8. The automatic assembly equipment for double ballpoint writing pens as claimed in claim 1, characterized in that: The elastic member feeding mechanism comprises: Support body; An elastic member transport block is fixed to the support body and has a feed inlet and a discharge outlet, wherein the feed inlet receives the elastic member and the discharge outlet transports the elastic member into the pen tip; An elastic member stopper; rotatably connected to the support body, and closing or opening the discharge port; An elastic member driving cylinder; the elastic member driving cylinder drives the support body to move up and down; An elastic member top column is arranged on a side of the elastic member stopper away from the support body and has a distance from the elastic member stopper, and the elastic member top column cooperates with the elastic member stopper to open the discharge port; A spring, wherein two ends of the spring are respectively connected to the support body and the elastic member stopper, and provide a force to push the elastic member stopper away from the support body, so that the elastic member stopper closes the discharge port; One end of the elastic member stopper extends to the discharge port, and the spring and the elastic member top column are both arranged at the other end of the elastic member stopper.

9. The automatic assembly equipment for double ballpoint writing pens as claimed in claim 8, characterized in that: The elastic member feeding mechanism further comprises: A storage block is disposed between the discharge port of the elastic member transport block and the nib in the nib holder, and stores the elastic member dropped from the discharge port; A material blocking structure, disposed between the material storage block and the pen tip, to prevent the elastic member from falling from the material storage block; The material pushing structure comprises a material pushing cylinder and a material pushing shaft. The material pushing cylinder drives the material pushing shaft to push the elastic member in the material storage block.

10. The automatic assembly equipment for double ballpoint writing pens according to claim 1, characterized in that: The water diversion core unloading mechanism comprises: A hopper for storing the water diversion core; A pushing cylinder pushes the water-inducing core out; The clamping claw clamps the water-guiding core and is placed and connected to the pen head that accommodates the elastic member.

11. The automatic assembly equipment for double ballpoint writing pens according to claim 1, characterized in that: The detection mechanism includes: A nib detection mechanism is disposed between the nib pressing mechanism and the ball feeding mechanism to detect whether there is a nib in the nib fixture; A ball detection mechanism is disposed between the ball feeding mechanism and the elastic member feeding mechanism to detect whether there is a ball in the pen tip; An elastic member detection mechanism is disposed between the elastic member feeding mechanism and the water guide core feeding mechanism to detect whether there is an elastic member in the pen tip; The water-introduction core detection mechanism is arranged between the water-introduction core feeding mechanism and the dotting mechanism to detect whether the water-introduction core is connected to the pen tip.

12. The automatic assembly equipment for double ballpoint writing pens according to claim 11, characterized in that: The water guide core detection mechanism includes a detection ring, a detection block and a photoelectric detector. The detection ring presses the water guide core. When the detection ring is pressed, the detection block rises. The photoelectric detector detects the groove on the detection block to detect whether the water guide core is connected to the pen tip.

13. The automatic assembly equipment for double ballpoint writing pens according to claim 1, characterized in that: The double ballpoint writing pen automatic assembly equipment also includes: A frame, wherein a power mechanism and a transmission mechanism are arranged inside the frame to drive the indexing turntable to rotate; The assembly table is arranged on the frame and carries the indexing turntable, the nib feeding mechanism, the nib pressing mechanism, the ball feeding mechanism, the elastic part feeding mechanism, the water diversion core feeding mechanism, the dotting mechanism and the detection mechanism.

14. The automatic assembly equipment for double ballpoint writing pens according to claim 1, characterized in that: The double ballpoint writing pen automatic assembly equipment also includes: A clamp opening mechanism for opening the pen head clamp to release the assembled finished or semi-finished writing pen; A taking-out mechanism for taking out the finished product or semi-finished product from the assembly equipment; The cycle detection mechanism detects whether the pen tip clamp is pushed open to carry out the next assembly cycle.

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