Automatic metal pen barrel assembling machine

Abstract

The application provides a metal pen barrel automatic assembly machine, which comprises a working frame, a controller and a material conveying mechanism. Side edges of the material conveying mechanism are sequentially provided with a pen barrel blanking mechanism, a pen barrel front-back detection mechanism, a first turning mechanism, a pen barrel lining feeding mechanism, a second turning mechanism, a pen nozzle feeding mechanism, a pen nozzle detection mechanism, a pen nozzle tightening mechanism, a defective product removing mechanism and a finished product hopper which are electrically connected with the controller. The application can solve the problem of low assembly efficiency in the prior art, i.e. manual assembly of metal pen barrels. The product structure is used, the material conveying mechanism precisely conveys materials, the pen barrel, lining and pen nozzle are automatically blanked and installed, the automation level is effectively improved, the labor cost is reduced, the processing efficiency is improved, and the material can be precisely screened through the defective product removing mechanism and the finished product hopper, which is beneficial to improving the competitiveness of enterprises.

Description

Technical Field

[0001] This invention relates to the field of metal pen assembly machine technology, and more specifically to an automatic metal pen barrel assembly machine. Background Technology

[0002] With the improvement of automation, more and more manufacturers are using automated equipment in their product processing to reduce human intervention and improve processing efficiency. Metal pens are a tool for writing and are in high demand in fields such as learning and office work.

[0003] A metal pen typically includes a barrel, nib, liner, weight, refill, and movement. The liner is placed at the end of the barrel where the nib is mounted. The liner is a frustum-shaped ring, with a smaller diameter at the head than at the tail. It is positioned between the inner wall of the barrel and the nib to improve the stability of the connection between them. The weight adds weight to improve the grip. The movement controls the refill's extension and retraction within the nib. The manufacturing process for a metal pen usually consists of two parts: the assembly of the barrel and the assembly of its internal components. The assembly process involves first installing the inner liner into the pen barrel, then installing the nib onto the barrel with the inner liner. For the internal components of the pen barrel, the components are installed into the barrel after the nib is installed. First, the counterweight is installed into the barrel, then the movement is installed, and finally the refill is installed, completing the assembly of the metal pen. However, in the current industry, the assembly of metal pen barrels is mostly done manually. Manual assembly, due to long working hours and large assembly volumes, leads to fatigue among assembly personnel, resulting in low assembly efficiency and hindering the company's competitiveness. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides an automatic metal pen barrel assembly machine, which solves the problem of low assembly efficiency caused by the manual assembly of metal pen barrels in the prior art.

[0005] This invention discloses an automatic metal pen barrel assembly machine, comprising a work frame, a controller, and a material conveying mechanism. The material conveying mechanism includes, sequentially on its side, a pen barrel unloading mechanism, a pen barrel forward / reverse detection mechanism, a first turning mechanism, a pen barrel liner feeding mechanism, a second turning mechanism, a pen tip feeding mechanism, a pen tip detection mechanism, a pen tip tightening mechanism, a defective product rejection mechanism, and a finished product hopper. The material conveying mechanism, pen barrel unloading mechanism, pen barrel forward / reverse detection mechanism, first turning mechanism, pen barrel liner feeding mechanism, second turning mechanism, pen tip feeding mechanism, pen tip detection mechanism, pen tip tightening mechanism, and defective product rejection mechanism are all electrically connected to the controller. The pen tip feeding mechanism includes a pen tip vibratory feeder, a pen tip separating component, a pen tip anti-split component, and a pen tip mounting device. The pen tip anti-split component prevents two adjacent sets of pen tips from being discharged simultaneously. The discharge end of the pen tip vibratory feeder is provided with a guide pipe. The pen is designed with an arc shape pointing downwards. A vertically downward vibrating material channel is provided at the lower end of the guide tube. The vibrating material channel can control the pen tip to move downwards at a uniform speed through vibration. A material receiving component is provided below the vibrating material channel, and a pen tip receiving position is provided on the material receiving component. The vibrating material channel can work with the pen tip separating component to control the pen tip to be discharged one by one and fall into the pen tip receiving position. The material receiving component can work with the pen tip mounting device to install the pen tip on the metal pen. The second turning mechanism includes a second turning mounting plate and a second turning component. The second turning component includes a second turning connecting rod. The two ends of the second turning connecting rod are respectively connected to a second turning seat and a second turning drive component. The second turning drive component can drive the second turning connecting rod to rotate. A second turning lifting cam component is fixedly provided at the lower end of the second turning mounting plate. The second turning lifting cam component can drive the second turning mounting plate to rise and pick up the material.

[0006] The present invention is further improved in that the material conveying mechanism includes a first material conveying frame and a second material conveying frame. Multiple first material feeding grooves and second material feeding grooves are equally spaced on both sides of the first and second material conveying frames. The first material feeding grooves are set higher than the second material feeding grooves. The two ends of the first material conveying frame are the loading end and the unloading end, respectively. A material frame lifting cam assembly is fixedly installed at the lower end of the first material conveying frame. The material frame lifting cam assembly can drive the first material conveying frame to move up and down to realize the mutual transfer of materials on the first and second material conveying frames. A sliding drive assembly is installed at the lower end of the second material conveying frame. The sliding drive assembly can drive the second material conveying frame to move back and forth between the loading end and the unloading end.

[0007] The present invention is further improved in that the first turning mechanism includes a first turning mounting plate and multiple sets of first turning components. The first turning component includes a first turning link. The two ends of the first turning link are respectively connected to a first turning seat and a first turning drive component. The first turning drive component can drive the first turning link to rotate. A first turning lifting cam component is fixedly provided at the lower end of the first turning mounting plate. The first turning lifting cam component can drive the first turning mounting plate to rise and pick up materials.

[0008] The present invention is further improved in that the pen barrel feeding mechanism includes a feeding mechanism support, a storage box is provided on the feeding mechanism support, a pen barrel dispensing component is provided at the lower end of the storage box, the pen barrel dispensing component is provided with multiple pen barrel discharge positions that cooperate with the pen barrels, the pen barrel dispensing component can sort the pen barrels at the lower end of the storage box, a pen barrel separating mechanism is provided below the pen barrel discharge position, the pen barrel separating mechanism controls the storage box to discharge the pen barrels one by one in an orderly manner, the pen barrel separating mechanism includes a pen barrel separating plate and a pen barrel separating plate driving device, the pen barrel separating plate can cooperate with the pen barrel separating plate driving device to block the pen barrel discharge position.

[0009] The present invention is further improved, wherein the pen barrel forward / reverse detection mechanism includes a pen barrel forward / reverse detection bracket, a forward / reverse detection proximity switch, and a forward / reverse detection push rod. A forward / reverse limiting bushing is fixedly mounted on the forward / reverse detection push rod. A pen barrel forward / reverse detection cylinder is mounted on the pen barrel forward / reverse detection bracket. A forward / reverse detection seat is mounted on the moving end of the pen barrel forward / reverse detection cylinder. A movable groove is provided in the forward / reverse detection seat. A forward / reverse detection rod hole is provided on the side wall of the movable groove. The forward / reverse detection push rod is disposed in the forward / reverse detection rod hole, and the forward / reverse limiting bushing is disposed in the movable groove. The forward / reverse detection push rod can slide relative to the forward / reverse detection rod hole. A forward / reverse detection buffer spring is sleeved on the forward / reverse detection push rod, and the forward / reverse detection buffer spring is disposed in the movable groove. The two ends of the forward / reverse detection buffer spring can be limited by the inner wall of the movable groove and the forward / reverse limiting bushing, respectively. The forward / reverse detection proximity switch is fixedly mounted on the forward / reverse detection seat. The forward / reverse detection proximity switch can determine whether the pen barrel is in the correct direction by detecting the relative position of the forward / reverse limiting bushing.

[0010] The present invention is further improved in that the pen barrel liner feeding mechanism includes a liner feeding component and a liner installation device. The liner feeding component includes a liner vibrating plate, a liner transfer component, and a liner receiving component. The discharge end of the liner transfer plate is connected to a liner direct vibration channel. The end of the liner direct vibration channel away from the liner vibrating plate is provided with a liner picking position. The liner receiving component is provided with a liner receiving position. The liner transfer component can transfer the liner from the liner picking position to the liner receiving position. The liner receiving component can cooperate with the liner installation device to install the liner in the pen barrel.

[0011] The present invention is further improved in that the pen tip detection mechanism includes a pen tip detection frame, a pen tip detection proximity switch, and a pen tip detection base. A pen tip detection push rod that can slide relative to the pen tip detection base is provided on the pen tip detection base. A pen tip detection limiting head seat and a pen tip detection limiting tail seat are respectively provided at both ends of the pen tip detection push rod. A pen tip detection reset spring is sleeved on the pen tip detection push rod. The two ends of the pen tip detection reset spring can be limited by the pen tip detection limiting head seat and the pen tip detection base respectively. The pen tip detection proximity switch is fixedly installed on the pen tip detection base. The pen tip detection proximity switch can determine whether a pen tip is installed based on the relative position of the pen tip detection limiting tail seat.

[0012] The present invention is further improved in that the pen tip tightening mechanism includes a pen tip tightening assembly and a pen tip tightening buffer assembly. The pen tip tightening assembly and the pen tip tightening buffer assembly are symmetrically arranged on both sides of the feeding mechanism. The pen tip tightening assembly includes a pen tip tightening mounting bracket and a pen tip tightening drive device. The pen tip tightening mounting bracket is provided with a pen tip tightening slide rail and a pen tip tightening seat. The pen tip tightening seat is provided with a pen tip tightening push rod. The lower end of the pen tip tightening seat is provided with a pen tip tightening slider that cooperates with the pen tip tightening slide rail. The moving end of the pen tip tightening drive device is connected to the pen tip tightening seat. The pen tip tightening seat can improve the stability of the movement process through the cooperation of the pen tip tightening slide rail and the pen tip tightening slider. The pen tip tightening drive device can push the pen tip tightening push rod towards the pen tip tightening buffer assembly for pen tip installation. The pen tip tightening buffer assembly... The component includes a pen tip tightening buffer bracket and a pen tip tightening buffer drive device. The pen tip tightening buffer bracket is equipped with a pen tip tightening buffer slide rail and a pen tip tightening buffer seat. The pen tip tightening buffer seat is equipped with a pen tip tightening buffer support rod that can slide relative to it. The pen tip tightening buffer support rod is equipped with a tightening buffer limiting head seat and a tightening buffer limiting tail seat at both ends. A tightening buffer spring is sleeved on the pen tip tightening buffer support rod. The two ends of the tightening buffer spring can be limited by the tightening buffer limiting head seat and the pen tip tightening buffer seat respectively. The tightening buffer spring can cooperate with the pen tip tightening assembly to provide pen tip installation buffer space. The lower end of the pen tip tightening buffer seat is equipped with a pen tip tightening buffer slider that cooperates with the pen tip tightening buffer slide rail. The moving end of the pen tip tightening buffer drive device is connected to the pen tip tightening buffer seat.

[0013] The present invention is further improved in that the defective product rejection mechanism includes a defective product rejection box and a defective product rejection assembly. The defective product rejection box and the defective product rejection assembly are symmetrically arranged on both sides of the conveying mechanism. The defective product rejection assembly includes a defective product rejection bracket, and a defective product rejection cylinder is provided on the defective product rejection bracket. The moving end of the defective product rejection cylinder is provided with a rejection head. The defective product rejection cylinder can drive the rejection head to push the conveying mechanism into the defective product rejection box.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides an automatic metal pen barrel assembly machine. Its structure effectively solves the problem of low assembly efficiency caused by manual assembly of metal pen barrels in the prior art. Through this product structure, the material feeding mechanism accurately feeds materials, and the pen barrel, inner liner, and pen tip are automatically unloaded and installed, effectively improving the level of automation, reducing labor costs, and increasing processing efficiency. Furthermore, the defective product rejection mechanism and finished product hopper enable precise material screening, which is beneficial to improving the competitiveness of enterprises. Attached Figure Description

[0015] To more clearly illustrate the solutions in this invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the automatic metal pen barrel assembly machine of the present invention;

[0017] Figure 2 This is a schematic diagram of the material handling mechanism.

[0018] Figure 3 This is a schematic diagram of the material handling mechanism from another perspective.

[0019] Figure 4 This is a schematic diagram of part of the material handling mechanism;

[0020] Figure 5 This is a schematic diagram of the pen barrel feeding mechanism.

[0021] Figure 6 This is a schematic diagram of the pen barrel feeding mechanism.

[0022] Figure 7 This is a schematic diagram of the pen barrel feeding mechanism from another perspective.

[0023] Figure 8 This is a schematic diagram of the pen barrel forward and reverse detection mechanism.

[0024] Figure 9 Schematic diagram of the lining supply assembly structure;

[0025] Figure 10 This is a schematic diagram of the inner lining installation device.

[0026] Figure 11 A schematic diagram of the pen tip feeding mechanism;

[0027] Figure 12 Schematic diagram of the pen tip feeding assembly;

[0028] Figure 13 Another structural diagram of the pen tip feeding assembly;

[0029] Figure 14 A schematic diagram of the pen tip feeding assembly.

[0030] Figure 15 This is a schematic diagram of the pen tip detection mechanism.

[0031] Figure 16 Schematic diagram of the pen tip tightening component structure;

[0032] Figure 17 A schematic diagram of the structure of the pen tip tightening buffer assembly. Detailed Implementation

[0033] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order.

[0034] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] like Figure 1-17 As shown, the present invention discloses an automatic metal pen barrel assembly machine, comprising a work frame 1, a controller 2, and a material conveying mechanism 3. The material conveying mechanism 3 is sequentially equipped with a pen barrel unloading mechanism 4, a pen barrel forward / reverse detection mechanism 5, a first turning mechanism, a pen barrel liner feeding mechanism 6, a second turning mechanism, a pen tip feeding mechanism 7, a pen tip detection mechanism 8, a pen tip tightening mechanism 9, a defective product rejection mechanism 10, and a finished product hopper 11. The material conveying mechanism, the pen barrel unloading mechanism 4, the pen barrel forward / reverse detection mechanism 5, the first turning mechanism, the pen barrel liner feeding mechanism 6, the second turning mechanism, the pen tip feeding mechanism 7, the pen tip detection mechanism 8, the pen tip tightening mechanism 9, and the defective product rejection mechanism 10 are all electrically connected to the controller 2.

[0037] like Figure 2-4 As shown, the material conveying mechanism 3 is mounted on the working frame 1. The material conveying mechanism 3 includes a first material conveying frame 32 and a second material conveying frame 33. The first material conveying frame 32 and the second material conveying frame 33 are provided with multiple first material feeding grooves and second material feeding grooves at equal intervals on both sides. The first material feeding grooves are set higher than the second material feeding grooves. The two ends of the first material conveying frame 32 are the loading end and the unloading end, respectively.

[0038] The lower end of the second material conveyor 33 is provided with a sliding drive component, which can drive the second material conveyor 33 to move back and forth between the loading end and the unloading end.

[0039] The sliding drive assembly includes a sliding plate 34 and a sliding drive device. A linkage rod 35 is provided on the upper end surface of the sliding plate 34, and the lower end surface of the sliding plate 34 is fixedly connected to the sliding drive device.

[0040] The sliding drive device is a sliding drive motor. The moving end of the sliding drive motor is connected to a reducer 39. The two ends of the reducer 39 are respectively provided with a coupling 392 and a reducer helical gear 391. The reducer helical gear 391 is meshed with a driving helical gear. The driving helical gear meshes with a driven helical gear. A cylindrical feed wheel is fixedly installed on the driven helical gear. The driven helical gear can drive the cylindrical feed wheel to rotate.

[0041] A guide groove 36 is provided on the cylindrical feed wheel, and a guide rocker arm 37 is provided below the sliding plate 34. The guide rocker arm 37 includes swinging parts at both ends and a hinged part provided between the swinging parts at both ends. The hinged part is hinged to the working frame 1. By continuously changing the relative position of the guide rocker arm 37 in the guide groove 36, the sliding plate 34 is driven to move back and forth around the hinged part of the guide rocker arm 37.

[0042] A cam spindle 38 is fixedly mounted on the coupling 392, and multiple cam assemblies are sleeved on the cam spindle 38.

[0043] The cam assembly includes a synchronizing cam, on which a corresponding cam linkage component is provided.

[0044] Different processing steps require customized design of the synchronous cam and cam linkage components in the cam assembly. Compared with the traditional drive method, the structure is simpler. It only needs to control the rotation of the cam spindle 38 to realize the operation of multiple drive structures, effectively replacing the traditional use of multiple drive devices, which can effectively save costs and reduce the noise generated by the traditional multiple drive devices.

[0045] The lower end of the first material conveyor 32 is fixedly equipped with a cam assembly with a corresponding function, and the cam assembly connected to the lower end of the first material conveyor 32 is a material conveyor lifting cam assembly.

[0046] The material rack lifting cam assembly includes a material rack lifting cam linkage assembly and a material rack lifting synchronous cam. The cam main shaft 388 can be driven to rotate by a sliding drive motor, thereby realizing the raising and lowering of the first material rack 32.

[0047] The first material conveying frame 32 includes a first material conveying bracket and two sets of first material conveying side plates respectively disposed on both sides of the first material conveying bracket.

[0048] The first material conveying bracket is connected to the lifting frame cam linkage assembly, which drives the lifting movement of the first material conveying bracket, thereby realizing the mutual transfer of materials on the first material conveying frame 32 and the second material conveying frame 33.

[0049] When rising, the first conveyor 32 lifts the pen rod, which is placed in the first feeding groove. When falling, the pen rod falls into the second feeding groove of the second conveyor 33.

[0050] The lower end face of the sliding plate 34 is provided with a linkage slider, and the working frame 1 is provided with a first linkage slide rail 101 that cooperates with the linkage slider. The sliding plate 34 can cooperate with the first linkage slide rail 101 to improve the stability of the movement.

[0051] The second material conveying frame 33 includes a second material conveying bracket and two sets of second material conveying side plates respectively disposed on both sides of the second material conveying bracket.

[0052] The second material conveying rack 33 is installed inside the first material conveying rack 32, and the first material conveying rack 32 is provided with a material conveying channel that cooperates with the second material conveying rack 33.

[0053] Obviously, for the second material feeding rack 33 to be set inside the first material feeding rack 32, and the first material feeding rack 32 to be provided with a material feeding channel that cooperates with the second material feeding rack 33 to realize the alternating lifting of the pen barrel, other methods can also be used. For example, the first material feeding side plate on one side of the first material feeding rack 32 can be set in the second material feeding rack 33, and the second material feeding side plate on one side of the second material feeding rack 33 can be set in the first material feeding rack 32. The first material feeding rack 32 and the second material feeding rack 33 are set in a partially overlapping manner, which can also achieve the effect of the above solution.

[0054] The material conveying mechanism 3 also includes two sets of auxiliary linkage slide rails 102. The sliding drive component is set at one end of the second material conveying frame 33. The two sets of auxiliary linkage slide rails 102 are respectively set at the middle of the second material conveying frame 33 and the other end of the second material conveying frame 33. The lower end of the second material conveying frame 33 is respectively provided with auxiliary sliders that cooperate with the auxiliary linkage slide rails 102.

[0055] By setting up the auxiliary linkage slide rail 102, the stability of the sliding of the second material conveyor 33 can be further improved.

[0056] The usage procedure for material conveying mechanism 3 is as follows:

[0057] In the initial state, the first material conveyor 32 is higher than the second material conveyor 33.

[0058] First, place the pen barrel to be processed into the first feeding groove on the first feeding rack 32 at the feeding end.

[0059] When the material conveying mechanism 3 is running, the material lifting cam assembly at the lower end of the first material conveying frame 32 controls the first material conveying frame 32 to move downward, and the material of the first material conveying frame 32 is transferred to the second material feeding groove of the second material conveying frame 33.

[0060] The sliding drive device operates, driving the cylindrical feeding wheel to rotate. The guide rocker arm 37 swings under the drive of the guide groove 36, causing the second material conveyor 33 to move in conjunction with the guide, and controlling the second material conveyor 33 to move four workstations towards the lower material end.

[0061] After the second material conveyor 33 moves to the designated position, the material conveyor lifting cam assembly at the lower end of the first material conveyor 32 controls the first material conveyor 32 to move upward, and the material of the second material conveyor 33 is transferred to the first material feeding groove of the first material conveyor 32.

[0062] After the first material conveyor 32 rises, the cylindrical feeding wheel continues to rotate, and the guide swing rod 37 swings under the drive of the guide groove 36, so that the second material conveying mechanism 3 is linked and controls the second material conveyor 33 to move four workstations in the direction of the upward material end, and return to the initial position.

[0063] In this manner, the first conveyor frame 32 and the second conveyor frame 33 move alternately to transport the pen barrel from the loading end to the unloading end.

[0064] The first turning mechanism includes a first turning mounting plate 103 and multiple sets of first turning components. The first turning component includes a first turning link 104. The two ends of the first turning link 104 are respectively connected to a first turning seat 105 and a first turning drive component 106. The first turning drive component 106 can drive the first turning link 104 to rotate. The lower end face of the first turning mounting plate 103 is connected to a corresponding cam linkage component. The cam component connected to the lower end face of the first turning mounting plate 103 is a first turning lifting cam component.

[0065] The first turning seat 105 is raised and lowered by the cooperation of the first turning lifting cam assembly and the first turning mounting plate 103. When it rises, the first turning seat 105 lifts the material on the first material conveying rack 32 and drives the first turning seat 105 to rotate and turn around by the first turning drive assembly 106. After the turning is completed, the first turning lifting cam assembly controls the first turning seat 105 to descend. After the turning is completed, the pen is placed back into the first material feeding groove on the first material conveying rack 32.

[0066] The second turning mechanism includes a second turning mounting plate 107 and a second turning assembly. The second turning assembly includes a second turning link 108. The two ends of the second turning link 108 are respectively connected to a second turning seat and a second turning drive assembly 109. The second turning drive assembly 109 can drive the second turning link 108 to rotate. The lower end face of the second turning mounting plate 107 is connected to a corresponding cam assembly. The cam assembly connected to the second turning mounting plate 107 is a second turning lifting cam assembly.

[0067] The second turning seat rises and falls by cooperating with the second turning mounting plate 107. When rising, the second turning seat lifts the pen on the second material conveyor 33 and drives the second turning seat to rotate and turn around by the second turning drive assembly 109. After turning around, the second turning lifting cam assembly controls the second turning seat to fall down, and the pen is placed back into the first material feeding groove on the second material conveyor 33.

[0068] The material conveying mechanism 3 also includes a working frame 1 which is equipped with a first turning anti-detachment component and a second turning anti-detachment component 120. The first turning anti-detachment component and the second turning anti-detachment component 120 can respectively prevent the material on the first turning seat 105 and the second turning seat from falling off. The first turning anti-detachment component and the second anti-detachment component both include an anti-detachment bracket 121, an anti-detachment connecting rod 122 and an anti-detachment pressure head 123. The two ends of the anti-detachment connecting rod 122 are respectively connected to the anti-detachment bracket 121 and the anti-detachment pressure head 123.

[0069] When the lower end of the material is lifted by the first turning seat 105, the anti-detachment pressure head 123 in the first turning anti-detachment component presses against the upper end of the material, which can prevent the material from detaching from the first turning seat 105 when the first turning seat 105 rotates and turns.

[0070] When the material is lifted up by the second turning seat, the anti-detachment pressure head 123 in the second turning anti-detachment component 120 presses against the upper end of the material, which can prevent the material from detaching from the second turning seat when the second turning seat rotates and turns.

[0071] The anti-detachment bracket 121 is provided with a sliding mounting seat 124. The sliding mounting seat 124 is provided with a sliding channel that cooperates with the anti-detachment connecting rod 122. The anti-detachment connecting rod 122 is disposed in the sliding channel and can slide relative to the sliding mounting seat 124. A buffer spring is sleeved on the anti-detachment connecting rod 122. The lower end of the sliding mounting seat 124 and the upper end of the anti-detachment pressure head 123 can respectively limit the two ends of the buffer spring.

[0072] The buffer spring design allows the anti-detachment pressure head 123 to fit more precisely with the products on the first turning seat 105 and my second low-head seat, improving the processing experience.

[0073] The first turning mounting plate 103 is equipped with four sets of first turning components, which are equally spaced. The first turning anti-detachment component is equipped with four sets of sliding mounting seats 124. The four sets of first turning components can simultaneously lift and turn four sets of materials. The four sets of sliding mounting seats 124 cooperate with the four sets of first turning components to prevent detachment.

[0074] The second turning assembly has four material stations on its second turning base. The four material stations can simultaneously lift four sets of materials from the first material feeding groove on the first material conveying frame 32. The anti-detachment pressure head 123 of the second turning anti-detachment assembly 120 can simultaneously cooperate to prevent the four materials from detaching.

[0075] like Figure 5-7 As shown, the pen barrel feeding mechanism 4 includes a feeding mechanism support 41, a storage box 42 is provided on the feeding mechanism support 41, and a pen barrel dispensing component 43 is provided at the lower end of the storage box 42.

[0076] The pen barrel sorting component 43 can sort the pens in the storage box 42 before discharging, providing a foundation for efficient discharging in the future.

[0077] The pen barrel material distribution assembly 43 includes a pen barrel pushing assembly and a pen barrel material distribution seat 434 disposed below the pen barrel pushing assembly. The pen barrel material distribution seat 434 is provided with multiple pen barrel discharge positions 4341 that cooperate with the pen barrels. A pen barrel separating mechanism 44 is disposed below the pen barrel material distribution seat 434.

[0078] By cooperating with the pen barrel discharge positions 4341 and the pen barrel separating mechanism 44, the pen barrels in the pen barrel discharge positions 4341 can be controlled to be discharged one by one in an orderly manner.

[0079] The pen barrel pusher assembly includes a pusher mounting plate 431 and a pusher drive device. A left pusher 432 and a right pusher 433 are fixedly mounted on the pusher mounting plate 431.

[0080] By setting up a pusher drive device, the pusher mounting plate 431 can be driven to move back and forth, which in turn drives the left pusher 432 and the right pusher 433 to move in tandem, pushing the pen lever left and right to adjust its position, so that the pen lever in the storage box 42 falls into the pen lever discharge position 4341.

[0081] The upper and lower ends of the pen barrel discharge position 4341 are the feeding end and the discharge end, respectively. The pen barrel pushing assembly makes the pen barrel enter the pen barrel discharge position 4341 from the feeding end.

[0082] The pen barrel separator mechanism 44 includes a pen barrel separator plate 441 and a pen barrel separator drive device.

[0083] The pen barrel partition plate 441 can cooperate with the pen barrel partition drive device, so that the pen barrel partition drive device controls the pen barrel partition plate 441 to block the discharge end of the pen barrel discharge position 4341, thereby controlling the discharge of the pen barrel discharge position 4341.

[0084] The pen barrel partition plate 441 is provided with pen barrel partition blocks that cooperate with the pen barrel discharge position 4341. The number of pen barrel partition blocks is the same as the number of pen barrel discharge positions 4341. The pen barrel partition plate driving device can drive the pen barrel partition plate 441 to make multiple pen barrel partition blocks simultaneously block multiple pen barrel discharge positions 4341, thereby improving the blocking efficiency and the accuracy of individual discharge.

[0085] The pen barrel discharge position 4341 is set perpendicular to the storage box 42, and the pen barrels are stacked horizontally in the pen barrel discharge position 4341.

[0086] The pen barrel partition plate 441 is set on the side of the discharge end of the corresponding pen barrel discharge position 4341. The pen barrel partition plate 441 is driven left and right by the pen barrel partition plate driving device to block, which can effectively shorten the blocking movement distance and improve the blocking efficiency.

[0087] There are four sets of pen barrel discharge positions 4341 and four sets of pen barrel material separators. The cooperation of the four sets of pen barrel discharge positions 4341 and the four sets of pen barrel material separators enables the simultaneous control of the feeding of four sets of pen barrels, thereby improving the feeding efficiency.

[0088] The storage box 42 is provided with a guide block 420 at the lower end. The guide block 420 is provided with a first guide slope, and the left push block 432 and the right push block 433 are provided with a second guide slope. The storage box 42 can make the pen bar stack above the pen bar distribution seat 434 through the cooperation of the first guide slope and the second guide slope, so that the product can fall between the left push block 432 and the right push block 433 for pushing action.

[0089] The material pushing drive device includes a material pushing drive motor 435, an eccentric wheel 436, and an eccentric connecting rod 437. The material pushing drive motor 435 is fixedly mounted on the unloading mechanism bracket 41. A material pushing connecting seat 438 is provided on the push block mounting plate 431. A material pushing guide rod 45 that cooperates with the material pushing connecting seat 438 is provided on the unloading mechanism bracket 41. The moving end of the material pushing drive motor 435 is fixedly connected to the eccentric wheel 436 on the material pushing connecting seat 438. The two ends of the eccentric connecting rod 437 are respectively hinged to the eccentric wheel 436 and the material pushing connecting seat 438. The material pushing connecting seat 438 can slide relative to the material pushing guide rod 45.

[0090] There are two sets of pusher guide rods 45 and two sets of pusher connecting seats 438. The two sets of pusher connecting seats 438 are symmetrically arranged on both sides of the pusher block mounting plate 431. The two sets of pusher guide rods 45 are arranged in parallel. The pusher connecting seats 438 are provided with pusher guide holes that cooperate with the two sets of pusher guide rods 45 respectively.

[0091] By setting two sets of pusher guide rods 45, the stability of the pusher mounting plate movement can be effectively improved.

[0092] The material separation drive device includes a material separation push cylinder 442, and the pen barrel material separation mechanism 44 also includes a partition mounting plate 443. The partition mounting plate 443 is connected to the moving end of the material separation push cylinder 442 and is connected to the pen barrel material separation plate 441. A material separation connecting seat 444 is provided on the partition mounting plate 443, and a material separation guide rod 46 that cooperates with the material separation connecting seat 444 is provided on the feeding mechanism bracket 41. The material separation connecting seat 444 can slide relative to the material separation guide rod 46.

[0093] There are two sets of material-separating guide rods 46 and two sets of material-separating connecting seats 444. The two sets of material-separating connecting seats 444 are symmetrically arranged on both sides of the partition mounting plate 443. The two sets of material-separating guide rods 46 are arranged in parallel. The material-separating connecting seats 444 are provided with material-separating guide holes that cooperate with the two sets of material-separating guide rods 46 respectively.

[0094] By setting up two sets of isolation material guide rods, the stability of the movement of the partition mounting plate 443 can be further improved.

[0095] The feeding mechanism support 41 includes a tilting adjustment base 6101 and upright plates 4102 arranged on both sides of the tilting adjustment base 6101. A reinforcing horizontal plate 4103 is provided between the two sets of upright plates 4102. The tilting adjustment base 6101 can adjust the position of the feeding mechanism support 41.

[0096] The storage box 42 is provided with a storage opening and closing door 421 and an opening and closing hinge 422. One side of the storage opening and closing door 421 is hinged to the storage box 42 via the opening and closing hinge 422. The storage opening and closing door 421 is provided with a handle 423 and a metal part. The storage box 42 is provided with a magnetic suction part 424 that cooperates with the metal part. The other side of the storage opening and closing door 421 is magnetically connected to the storage box 42.

[0097] The usage process for pen barrel feeding mechanism 4 is as follows:

[0098] First, the pen barrel to be processed is placed in the storage box 42. With the cooperation of the first guide slope and the second guide slope, the pen barrel falls between the left push block 432 and the right push block 433. The push drive device drives the push block mounting plate 431 to move back and forth.

[0099] During the movement, the left push block 432 and the right push block 433 adjust the position of the pen barrel and automatically fall into the pen barrel discharge position 4341.

[0100] The pen barrel partition drive device drives the pen barrel partition plate 441 to move back and forth once, and the pen barrel discharge position 4341 automatically discharges four sets of pen barrels and places them on the first feeding groove of the first feeding rack 32 in the feeding mechanism 3, realizing the orderly feeding process one by one.

[0101] The automatic metal pen barrel assembly machine also includes a pen barrel front and back detection auxiliary mechanism 50, which includes a front and back detection auxiliary bracket, and a front and back detection limit plate and a front and back detection pressing component are provided on the front and back detection auxiliary bracket.

[0102] like Figure 8 As shown, the pen barrel forward / reverse detection mechanism 5 includes a pen barrel forward / reverse detection bracket 51, a forward / reverse detection proximity switch 52, and a forward / reverse detection push rod 53. A forward / reverse limit bushing 54 is fixedly mounted on the forward / reverse detection push rod 53. A pen barrel forward / reverse detection cylinder 55 is mounted on the pen barrel forward / reverse detection bracket 51. A forward / reverse detection seat 56 is mounted on the moving end of the pen barrel forward / reverse detection cylinder 55. A movable groove is provided in the forward / reverse detection seat 56, and a forward / reverse detection rod hole is provided on the side wall of the movable groove. The forward / reverse detection push rod 53 is positioned on the forward / reverse side... The detection rod hole is located in the positive and negative limiting bushing 54, which is set in the movable groove. The positive and negative detection push rod 53 can slide relative to each other in the positive and negative detection rod hole. The positive and negative detection buffer spring is sleeved on the positive and negative detection push rod 53 and is set in the movable groove. The two ends of the positive and negative detection buffer spring can be limited by the inner wall of the movable groove and the positive and negative limiting bushing 54, respectively. The positive and negative detection proximity switch 52 is fixedly set on the positive and negative detection seat 56, and the positive and negative detection head is set on the positive and negative detection push rod 53.

[0103] The usage procedure for the pen barrel front / back detection mechanism 5 in conjunction with the pen barrel front / back detection auxiliary mechanism 50 is as follows:

[0104] After the material conveying mechanism 3 transports the pen barrel to the area that cooperates with the pen barrel forward and reverse detection mechanism 5, the pen barrel forward and reverse detection cylinder 55 pushes the forward and reverse detection seat 56 to move towards the pen barrel. The pen barrel includes a pen tip end and a pen tail end. The diameter of the pen tip end is smaller than the diameter of the pen tail end. The diameter of the forward and reverse detection head is larger than the pen tail end and smaller than the pen tail end. During the process of the pen barrel forward and reverse detection cylinder 55 pushing the forward and reverse detection seat 56 towards the pen barrel, when the pen tip end faces the forward and reverse detection head, the forward and reverse detection head gradually slides backward relative to the forward and reverse detection seat 56. After the forward and reverse detection proximity switch 52 detects the relative position change of the forward and reverse limit sleeve 54, it identifies that the pen tip end is facing the forward and reverse detection head. When the pen tail end faces the forward and reverse detection head, the forward and reverse detection head will not slide backward relative to the forward and reverse detection seat 56, which indicates that the pen tail end is facing the forward and reverse detection head.

[0105] As the forward and reverse detection heads move toward the pen barrel, they apply pressure to the pen barrel. The forward and reverse detection limiting plate ensures that the pen barrel remains unchanged, and the forward and reverse detection pressing components can both limit the upper part of the pen barrel, preventing it from popping out of the first feeding groove during the test.

[0106] The operating procedure for the first U-turn mechanism is as follows:

[0107] When the pen barrel forward / backward detection mechanism 5 detects that the pen tip is facing the forward / backward detection head, it indicates that the pen barrel needs to be turned around. When the pen barrel is turned around and moves to the bottom of the first turning mechanism, the first turning seat 105 lifts and turns the material on the first material conveyor 32. After being lifted, the first turning drive assembly drives the first turning seat 105 to rotate and turn around.

[0108] After the turn is completed, the first turning seat 105 descends, allowing the pen barrel that has completed the turn to be placed back on the first material conveyor 32, thus completing the turn process.

[0109] like Figure 8-9 As shown, the pen barrel liner feeding mechanism 6 includes a liner feeding component and a liner installation device. The liner feeding component includes a liner vibrating plate 61, a liner transfer component and a liner receiving component. The discharge end of the liner transfer plate is connected to a liner direct vibration channel 62. The end of the liner direct vibration channel 62 away from the liner vibrating plate 61 is provided with a liner picking position. The liner receiving component is provided with a liner receiving position.

[0110] By setting up the inner lining transfer component, the inner lining on the inner lining picking position can be efficiently transferred to the inner lining receiving position, laying the foundation for subsequent loading.

[0111] The inner lining support assembly allows for efficient installation of the inner lining within the pen barrel, working in conjunction with the inner lining installation device.

[0112] The material receiving component is located on the side of the pointer material channel. The inner lining direct vibration material channel 62 is set in the X-axis direction. The inner lining material transfer component includes an inner lining material transfer mounting frame 63. A Y-axis material transfer drive cylinder 64 is set on the inner lining material transfer mounting frame 63. A Y-axis drive plate 65 is fixedly set on the moving end of the Y-axis material transfer drive cylinder 64. A Z-axis material transfer drive cylinder 66 is set on the Y-axis drive plate 65. A material transfer mounting plate 67 is set on the moving end of the Z-axis material transfer drive cylinder 66. An inner lining material transfer gripper cylinder 68 is set on the material transfer mounting plate 67.

[0113] The inner lining can be efficiently transported by the Y-axis material transfer drive cylinder 64, the Z-axis material transfer drive cylinder 66, and the inner lining material transfer gripper cylinder 68.

[0114] The inner lining transfer mounting bracket 63 is also equipped with a Y-axis transfer slide rail 69, and the Y-axis drive plate 65 is equipped with a Y-axis transfer slider.

[0115] The cooperation between the Y-axis material transfer slide rail 69 and the Y-axis material transfer slider can effectively improve the stability of the movement of the Y-axis drive plate 65.

[0116] The material support assembly includes a tilting material support mounting frame, on which a tilting material support seat 611 and a tilting drive assembly are provided. The inner lining material support position is located on the tilting material support seat 611. The tilting material support seat 611 is provided with an inner lining installation channel communicating with the inner lining material support position. The inner lining installation device is located on the rear side of the tilting material support seat 611 and is provided with an inner lining installation push rod 612.

[0117] The flipping drive assembly can drive the flipping support 611 to flip upward to cooperate with the inner lining transfer gripper cylinder 68 to receive the material, and flip forward to cooperate with the inner lining installation push rod 612 to assemble the inner lining into the pen barrel. In the inner lining support position, the tail end of the inner lining is set at the bottom end of the inner lining support position, and the head end of the inner lining is set at the head end of the inner lining support position. The diameter of the inner lining installation channel is smaller than the diameter of the inner lining tail end and larger than the diameter of the inner lining head end. During the inner lining assembly process, the inner lining installation push rod 612 passes through the inner lining installation channel and enters the inner lining support position to abut against the inner wall of the inner lining, pushing the inner lining from the inner lining support position into the pen barrel for installation.

[0118] The tilting drive device includes a rotating shaft swing plate 613, a swing linkage shaft 614, and a swing cylinder 615. A tilting shaft is provided on the side of the tilting support 611. One end of the rotating shaft swing plate 613 is fixedly connected to the tilting shaft, and the other end of the rotating shaft swing plate 613 is hinged to one end of the swing linkage shaft 614. The other end of the swing linkage shaft 614 is connected to the other end of the swing cylinder 615.

[0119] The flipping drive device can drive the rotating shaft swing plate 613 to swing up and down through the swing cylinder 615, so that the flipping support seat 611 flips. When the swing cylinder 615 is pulled back to reset, the flipping support seat 611 flips upward to receive the material. When the moving end of the swing cylinder 615 extends, the flipping support seat 611 flips forward to assemble the inner lining.

[0120] The tilting support mounting frame includes a tilting adjustment base 6101. Both sides of the tilting adjustment base 6101 are provided with left and right adjustment side plates. The left and right adjustment side plates include a tilting adjustment upper side plate 6103 and a tilting adjustment lower side plate 6104. Both the tilting adjustment upper side plate 6103 and the tilting adjustment lower side plate 6104 are provided with lifting adjustment holes.

[0121] The relative positions between the upper flip-adjustable plate 6103 and the lower flip-adjustable plate 6104 can be changed through the lifting adjustment hole.

[0122] The lining installation device includes an lining installation bracket 616, an lining push rod mounting seat 617, and an lining installation drive device. The lining installation bracket 616 is provided with an lining installation slide rail 618. The lower end of the lining push rod mounting seat 617 is provided with an lining installation slider that cooperates with the lining installation slide rail 618. The lining installation push rod 612 is provided on the lining push rod mounting seat 617. The moving end of the lining installation drive device is connected to the lining push rod mounting seat 617.

[0123] The inner liner push rod mounting base 617 can improve the stability of the movement process through the inner liner mounting slide rail 618 and the inner liner mounting slider.

[0124] The liner mounting drive device is a cam assembly that is adapted to the liner mounting.

[0125] The liner mounting cam assembly includes a liner mounting cam linkage assembly and a liner mounting synchronization cam 619.

[0126] The liner mounting cam linkage assembly includes a swing arm fixed seat 620, a swing arm 621, a swing arm linkage rod 622, front and rear swing plates 623, a hinge seat 624, and a drive linkage plate 625. The liner mounting synchronous cam 619 is provided with a swing guide groove. The swing arm 621 is provided with a swing guide that cooperates with the swing guide groove. Both ends of the swing arm 621 are hinged to the swing arm fixed seat 620 and one end of the swing arm linkage rod 622, respectively. The other end of the swing arm linkage rod 622 is hinged to one end of the front and rear swing plates 623. The front and rear swing plates 623 are provided with a hinge shaft, which is hinged to the hinge seat 624. The other end of the front and rear swing plates 623 is hinged to one end of the drive linkage plate 625. The drive linkage plate 625 is hinged to the liner push rod mounting seat 617.

[0127] The cam spindle 38 drives the inner liner mounting synchronous cam 619 to rotate. The shape of the swing guide groove cooperates with the swing guide component. The swing arm fixing seat 620 is fixed on the equipment, which causes the swing arm 621 to swing away from the swing arm fixing seat 620. During the swinging process of the swing arm 621, the swing arm linkage rod 622 drives the front and rear swing plates 623 to move in linkage, thereby controlling the back and forth movement of the inner liner push rod mounting seat 617.

[0128] The pen barrel liner feeding mechanism 6 also includes a liner detection slide rod 626, a liner buffer spring, and a proximity switch 628. The liner detection slide rod 626 has a slide rod limiting head seat and a slide rod limiting tail seat at both ends. The liner mounting push rod 612 is fixedly mounted on the slide rod limiting head seat of the liner detection slide rod 626. The liner push rod mounting seat 617 has a slide rod hole that mates with the liner detection slide rod 626. The liner detection slide rod 626 is partially disposed in the slide rod hole. The liner buffer spring is sleeved on the liner detection slide rod 626 and is disposed between the slide rod limiting head seat and the liner push rod mounting seat 617. The proximity switch 628 is disposed on the liner push rod mounting seat 617.

[0129] The detection inner lining slide rod 626 can slide relative to the slide rod hole, and the inner lining buffer spring can control the detection inner lining slide rod 626 to reset through elasticity. The proximity switch 628 can detect whether there is an inner lining when assembling the inner lining by changing the position of the slide rod limit tail seat.

[0130] When the inner liner installation drive device drives the inner liner push rod mounting seat 617 forward, it gradually moves towards the pen barrel. In order to avoid missing the inner liner and affecting subsequent processing, when the inner liner is installed, during the process of gradually moving towards the set position, the inner liner first contacts the mounting position inside the pen barrel. The inner liner installation push rod 612 can no longer be pushed, and the inner liner buffer spring is gradually compressed. The detection inner liner slide rod 626 will move backward relative to the inner liner push rod mounting seat 617. The slide rod limit tail seat changes its relative position, and the proximity switch 628 detects the change signal, confirming that the pen barrel has been successfully equipped with the inner liner.

[0131] When the drive is not installed with the inner liner, the forward movement of the inner liner installation push rod 612 is not restricted, the relative position of the inner liner detection slide rod 626 and the slide rod limit tail seat does not change, and the proximity switch 628 does not detect a signal, which means that the pen barrel has not been successfully fitted with the inner liner.

[0132] After the lining is assembled, the lining installation drive device drives the lining push rod mounting seat 617 to pull forward. Due to the action of the lining buffer spring, the lining slide rod 626 returns to its initial position.

[0133] There are two sets of lining feeding components, which are symmetrically arranged. There are two sets of lining material channels on the lining direct vibration material channel 62, and each set of lining material channels corresponds to an lining material picking position. There are four sets of lining material transfer gripper cylinders 68 on the material transfer mounting plate 67, and there are also four lining material receiving positions.

[0134] The four sets of inner lining transfer gripper cylinders 68 can simultaneously transfer materials to four sets of inner lining pick-up positions, effectively improving processing efficiency.

[0135] The number of push rods 612 for lining installation is also four, which can assemble four linings at the same time.

[0136] It also includes an inner liner installation auxiliary pressing component 601, which can limit the upper end of the pen barrel during the process of installing the inner liner onto the pen barrel.

[0137] The operating procedure for the pen barrel liner feeding mechanism 6 is as follows:

[0138] First, the liner is placed into the liner vibrating plate 61. The liner vibrating plate 61 is equipped with a direction adjustment structure so that when the liner is discharged, the head of the liner faces upward and the tail of the liner faces downward for feeding.

[0139] The inner lining vibratory plate 61 conveys the inner lining to the inner lining direct vibratory material channel 62, and finally to the inner lining picking position.

[0140] The initial position of the inner lining transfer gripper cylinder 68 is set above the inner lining material picking position.

[0141] Z-axis material transfer drive cylinder 66 drives inner lining material transfer gripper cylinder 68 to descend. After the inner lining material transfer gripper cylinder 68 picks up the material, Z-axis material transfer drive cylinder 66 drives inner lining material transfer gripper cylinder 68 to rise.

[0142] After the inner lining material transfer gripper cylinder 68 rises to the designated position, the Y-axis material transfer drive cylinder 64 drives the Z-axis material transfer drive cylinder 66 to move closer to the inner lining material support assembly.

[0143] After the Z-axis material transfer drive cylinder 66 moves to the designated position, it drives the inner lining material transfer gripper cylinder 68 to descend and release material to the inner lining material receiving position.

[0144] In the initial state, the inner lining material support position on the tilting adjustment base 6101 faces upward. After the material is placed on it, the tilting drive device drives the tilting adjustment base 6101 to tilt forward.

[0145] After the inner liner installation channel is aligned with the inner liner installation push rod 612, the inner liner installation device pushes the inner liner installation push rod 612 to assemble the inner liner into the pen barrel for installation. After installation, the device returns to its initial position.

[0146] The procedure for using the second turning mechanism is as follows:

[0147] When the pen barrel liner feeding mechanism 6 assembles the liner into the pen barrel, the pen barrel with the liner assembled moves below the second turning mechanism. The second turning seat lifts and turns the pen barrel on the first material conveyor 32. After being lifted, the second turning drive assembly drives the second turning seat to rotate and turn.

[0148] After the turning is completed, the second turning seat descends, so that the material that has turned is placed back on the first material conveyor 32, with the pen tip facing the pen tip feeding component, thus completing the turning process.

[0149] like Figure 11-14 As shown, the pen tip feeding mechanism 7 includes a pen tip feeding assembly and a pen tip mounting device 70. The pen tip feeding assembly includes a pen tip vibrating plate 71 and a pen tip separating assembly. The discharge end of the pen tip vibrating plate 71 is provided with a guide pipe 72, which is arranged in an arc downward. The lower end of the guide pipe 72 is provided with a vertically downward straight vibrating channel 73.

[0150] A material receiving component is provided below the vertical vibrating material channel 73, and a pen tip material receiving position 7251 is provided on the material receiving component.

[0151] The direct vibrating feed channel 73 can control the downward movement of the pen tip through uniform vibration.

[0152] The direct vibrating feed channel 73 can work with the pen tip separating component to control the pen tip to discharge one by one and fall into the pen tip receiving position 7251. The receiving component can work with the pen tip mounting device 70 to mount the pen tip on the pen barrel equipped with the inner liner.

[0153] The pen tip separating assembly includes a pen tip separating drive device 74, which is fixedly mounted on the linear vibrating material channel 73. A pen tip separating mounting plate is provided on the moving end of the pen tip separating drive device 74, and a pen tip separating push block 75 is provided on the pen tip separating mounting plate. The lower end of the linear vibrating material channel 73 is the pen tip outlet end.

[0154] The pen tip separating drive device 74 can drive the pen tip separating push block 75 to drag the pen tip toward the pen tip discharge end for discharge.

[0155] The pen tip separating drive device 74 includes a pen tip separating mounting bracket 741 and a pen tip separating drive cylinder 742. The pen tip separating mounting bracket 741 is provided with a motion guide groove, and the pen tip separating mounting plate is provided with a guide block that cooperates with the motion guide groove. The moving end of the pen tip separating drive cylinder 742 is connected to the guide block.

[0156] By setting up the motion guide groove, the pen tip separating drive cylinder 742 drives the pen tip separating mounting plate more stably, thereby improving the efficiency of pen tip separating.

[0157] The pen tip feeding mechanism 7 also includes a pen tip anti-crossing component, which can prevent two adjacent sets of pen tips from being discharged at the same time. The pen tip anti-crossing component includes a pen tip anti-crossing mounting plate 76, a pen tip anti-crossing driving device 77 is provided on the pen tip anti-crossing mounting plate 76, a pen tip pressure plate mounting bracket 78 is provided on the moving end of the pen tip anti-crossing driving device 77, and a pen tip anti-crossing pressure plate 79 is fixedly provided on the pen tip pressure plate mounting bracket 78.

[0158] The pen tip anti-crossing drive device 77 can drive the pen tip anti-crossing pressure plate 79, press down the pen tip separating push block 75 and drag the pen tip above (the second to last pen tip), which can effectively prevent the two pen tips from getting stuck together and discharging material at the same time.

[0159] The pen tip anti-spreading drive device 77 is a pen tip anti-spreading drive cylinder. The pen tip anti-spreading mounting plate 76 is provided with an anti-spreading guide, and the anti-spreading guide has an anti-spreading guide hole. The pen tip pressure plate mounting bracket 78 is provided with an anti-spreading guide rod 781 that cooperates with the guide. The anti-spreading guide rod 781 is located in the anti-spreading guide hole and is connected to the moving end of the pen tip anti-spreading drive cylinder.

[0160] The guide component ensures the stability of the movement of the pen tip anti-spill pressure plate 79.

[0161] There are two sets of vertical vibrating material channels 73, and two sets of pen tip material channels 731 are provided in the vertical vibrating material channels 73. There are also four sets of guide pipes 72, and the four sets of guide pipes 72 are respectively set to correspond to the four sets of pen tip material channels. Two sets of pen tip material separating push blocks 75 are provided on the pen tip material separating mounting plate.

[0162] Two sets of anti-split pen tip pressure plates 79 are fixedly installed on the pen tip pressure plate mounting bracket 78.

[0163] The two sets of pen tip separating pushers 75 can simultaneously separate the two sets of pen tip channels 731, and the two sets of pen tip anti-crossing pressure plates 79 can simultaneously press the two sets of pen tip channels 731, thus improving the efficiency of material discharge and processing.

[0164] The material-bearing assembly includes a material-bearing mounting frame 722 and a material-bearing driving device. The material-bearing mounting frame 722 is provided with a material-bearing movable plate 723 and a flipping guide plate 724. One end of the material-bearing movable plate 723 is connected to the material-bearing driving device. The material-bearing mounting frame 722 is provided with a material-bearing limiting guide part that cooperates with the material-bearing movable plate 723. A flipping material-bearing seat 725 is hinged on the material-bearing movable plate 723. The pen tip material-bearing position 7251 is provided on the flipping material-bearing seat 725. A flipping guide member 7252 is fixedly provided on the side wall of the flipping material-bearing seat 725. A flipping guide groove 7241 is provided on the side of the flipping guide plate 724 facing the flipping guide member 7252. The flipping guide groove 7241 is L-shaped, and the corners in the flipping guide groove 7241 are arc-shaped bevels.

[0165] There are four sets of pen tip material receiving positions 7251. The four sets of pen tip material receiving positions 7251 are set at equal intervals and cooperate with the four sets of pen tip material channels 731 to receive materials.

[0166] The material-carrying drive device is a cam assembly that is adapted to it.

[0167] The material-carrying drive cam assembly includes a material-carrying drive cam linkage assembly and a material-carrying drive synchronous cam 726.

[0168] The material-bearing drive cam linkage assembly includes a swing arm fixed seat 727, a swing arm 728, a rotary linkage assembly 729, a rotating shaft 730, and a drive linkage plate 732. The material-bearing drive synchronous cam 726 is provided with a swing guide groove 7261. The swing arm 728 is provided with a swing guide that cooperates with the swing guide groove 7261. Both ends of the swing arm 728 are hinged to one end of the swing arm fixed seat 727 and one end of the rotary linkage assembly 729, respectively. The other end of the rotary linkage assembly 729 is fixedly connected to one end of the rotating shaft 730. Both ends of the drive linkage plate 732 are hinged to the material-bearing movable plate 723 and fixedly connected to the other end of the rotating shaft 730, respectively.

[0169] The material-bearing drive synchronous cam 726 rotates, and the shape of the swing guide groove 7261 matches the swing guide. The swing arm fixing seat 727 is fixed on the equipment, which causes the swing arm 728 to swing away from the swing arm fixing seat 727. The swing arm 728 is linked by the rotation linkage component 729, which controls the rotation of the rotating shaft 730. The rotation of the rotating shaft 730 drives the drive linkage plate 732 to rotate, thereby controlling the forward and backward movement of the material-bearing movable plate 723.

[0170] As the material-bearing movable plate 723 moves back and forth, due to the design of the L-shaped flipping guide groove 7241, during the process of the material-bearing movable plate 723 being pulled backward, the flipping guide 7252 will be guided downward because the corner is an arc-shaped guide angle, so that the flipping material-bearing seat 725 flips upward and cooperates with the discharge end of the straight vibrating material channel 73 to receive the material.

[0171] When the pen tip receiving position 7251 on the flipping material receiving seat 725 receives the material, it drives the material receiving movable plate 723 to move forward. Under the action of the arc guide angle, the flipping guide 7252 rises a certain distance, and the flipping material receiving seat 725 flips forward to cooperate with the pen tip mounting device 70 for pen tip assembly.

[0172] The pen tip mounting device 70 includes a pen tip mounting frame 7032, on which a pen tip mounting movable plate 7033 and a pen tip mounting drive component 7034 are provided. The pen tip mounting movable plate 7033 is provided with multiple sets of movable push rods 7035, and the moving end of the pen tip mounting drive component 7034 is connected to the pen tip mounting movable plate 7033.

[0173] The pen tip mounting drive 7034 can drive the movable push rod 7035 to push the material to be assembled toward the flipping support 725 to assemble the pen tip.

[0174] The pen tip mounting drive component 7034 is a pen tip mounting cylinder, the pen tip mounting bracket 7032 is provided with a pen tip mounting slide rail, and the pen tip mounting movable plate 7033 is provided with a pen tip mounting slider that cooperates with the pen tip mounting slide rail.

[0175] The nib mounting cylinder can drive the nib mounting movable plate 7033 to slide on the nib mounting slide rail, improving the stability of the movement.

[0176] It also includes a pen tip initial installation auxiliary clamping component 701, which can limit the upper end of the pen barrel during the process of installing the pen tip onto the pen barrel.

[0177] The usage procedure for the nib feeding mechanism 7 is as follows:

[0178] First, the pen tip is placed into the pen tip vibrating plate 71. The pen tip vibrating plate 71 is equipped with a pen tip forward and reverse correction structure. The pen tip is discharged in a uniform direction. The pen tip is vibrated out from the discharge port of the pen tip vibrating plate 71 and enters from the four sets of guide tubes 72 respectively.

[0179] The pen tips in the four sets of guide tubes 72 enter the corresponding pen tip channel 731 of the direct vibration channel 73.

[0180] During discharge, the anti-spam drive cylinder drives the anti-spam guide rod 781 to pull backward, and the anti-spam pressure plate 79 applies pressure to the pen tip in the pen tip material channel 731. The position of the anti-spam pressure plate 79 is exactly the position of the second to last pen tip, and the position of the pen tip separating push block 75 is exactly the position of the last pen tip.

[0181] After the pen tip anti-crossing pressure plate 79 presses down on the pen tip, the pen tip material separation drive cylinder 742 drives the guide block to move downward, and the pen tip material separation push block 75 pushes the last pen tip towards the discharge end.

[0182] After being ejected, the pen tip separating drive cylinder 742 drives the pen tip separating push block 75 to reset, and the pen tip anti-crossing drive cylinder controls the pen tip anti-crossing pressure plate 79 to reset. The original second to last pen tip falls into the position of the original first to last pen tip, and so on to discharge the material.

[0183] During the material discharge process, the material receiving drive device in the material receiving assembly operates, flipping the tilting material receiving seat 725 upward in advance to receive the material.

[0184] When the flipping support 725 receives the material, the material carrying drive device drives the flipping support 725 to flip forward and move to the designated position.

[0185] After the flip-up support 725 reaches the designated position, the pen tip mounting cylinder drives the movable push rod 7035 to push the pen rod on the conveying mechanism 3 toward the flip-up support 725, so that the pen tip gradually gets into the pen rod, completing the assembly.

[0186] After assembly, the pen tip mounting cylinder drives the movable push rod 7035 to reset, and the material receiving drive device drives the flipping material receiving seat 725 to move backward a certain distance. Then, the flipping material receiving seat 725 flips upward to receive the next set of pen tips.

[0187] like Figure 15 As shown, the pen tip detection mechanism 8 includes a pen tip detection frame 81, a pen tip detection proximity switch 82, and a pen tip detection seat 83. A pen tip detection push rod 86 that can slide relative to the pen tip detection seat 83 is provided inside the pen tip detection seat 83. The pen tip detection frame 81 is mounted on the material support movable plate 723. The pen tip detection frame 81 and the material support movable plate move back and forth simultaneously. A pen tip detection limit head seat 84 and a pen tip detection limit tail seat 85 are respectively provided at both ends of the pen tip detection push rod 86. A pen tip detection reset spring is sleeved on the pen tip detection push rod 86. The two ends of the pen tip detection reset spring can be limited by the pen tip detection limit head seat 84 and the pen tip detection seat 83 respectively. The pen tip detection proximity switch 82 is fixedly mounted on the pen tip detection seat 83.

[0188] It also includes a pen tip processing pressing mechanism and a first pen tip processing limiting mechanism, both of which are located opposite the pen tip detection mechanism 8.

[0189] The pen tip processing clamping mechanism includes a pen tip processing clamping bracket, on which a pen tip processing clamping component is provided. The pen tip processing clamping component can ensure that the upper part of the pen barrel is limited during the pen tip processing process. The first pen tip processing limiting mechanism includes a first pen tip processing limiting bracket, on which a first pen tip processing limiting plate is provided. The first pen tip processing limiting plate can ensure that the end of the pen barrel is limited during the pen tip processing process.

[0190] The usage procedure for pen tip detection mechanism 8 is as follows:

[0191] After the pen tip installation cylinder drives the movable push rod 7035 to complete the pen tip installation process, the material conveying mechanism 3 transports the pen barrel to the corresponding position of the pen tip detection mechanism 8.

[0192] The pen tip detection frame 81 and the material support plate move simultaneously toward the material conveying mechanism 3. While the material support plate drives the flipping material support seat 725 to flip, the pen tip detection mechanism 8 detects whether the pen barrel is equipped with a pen tip.

[0193] As the pen tip inspection frame 81 moves forward, the pen tip inspection limiting head seat 84 assembly approaches. The pen rod is limited by the pen tip processing pressing mechanism and the first pen tip processing limiting mechanism. If there is a pen tip on the pen rod, the pen tip inspection push rod 86 will move backward relative to the pen tip inspection seat 83. The pen tip inspection proximity switch 82 recognizes the signal, indicating that the pen tip has been installed. If the pen tip is not successfully installed on the pen rod, the pen tip inspection push rod 86 will not move backward relative to the pen tip inspection seat 83, which means that the pen rod has not been successfully installed with a pen tip. The defective product is then rejected by the defective product rejection mechanism 10.

[0194] The pen tip detection holder 83 is provided with a pen tip detection push rod 86 that can slide relative to it. The pen tip detection proximity switch 82 can determine whether a pen tip is installed based on the relative position of the pen tip detection limit holder 85.

[0195] The automatic metal pen barrel assembly machine also includes a second pen tip processing limiting mechanism, which includes a second pen tip processing limiting bracket and a second pen tip processing limiting plate. The second pen tip processing limiting plate can ensure that the end of the pen barrel is limited during the pen tip processing process.

[0196] The pen tip processing clamping assembly includes a pen tip processing clamping head mounting bracket 80, on which a pen tip tightening auxiliary clamping head and a pen tip detection clamping head are provided. The pen tip tightening auxiliary clamping head works in conjunction with the pen tip tightening mechanism 9 to limit the upper part of the pen barrel.

[0197] like Figure 16-17As shown, the pen tip tightening mechanism 9 includes a pen tip tightening assembly 91 and a pen tip tightening buffer assembly 92. The pen tip tightening assembly 91 and the pen tip tightening buffer assembly 92 are symmetrically arranged on both sides of the material conveying mechanism 3. The pen tip tightening assembly 91 includes a pen tip tightening mounting bracket 911 and a pen tip tightening drive device 912. The pen tip tightening mounting bracket 911 is provided with a pen tip tightening slide rail 913 and a pen tip tightening seat 914. The pen tip tightening seat 914 is provided with a pen tip tightening push rod 915. The lower end of the nib clamping seat 914 is provided with a nib clamping slider 916 that cooperates with the nib clamping slide rail 913. The moving end of the nib clamping drive device 912 is connected to the nib clamping seat 914. The nib clamping seat 914 can improve the stability of the movement process through the cooperation of the nib clamping slide rail 913 and the nib clamping slider 916. The nib clamping drive device 912 can push the nib clamping push rod 915 towards the nib clamping buffer assembly 92 to install the nib. The tightening buffer assembly 92 includes a pen tip tightening buffer bracket 921 and a pen tip tightening buffer drive device 922. The pen tip tightening buffer bracket 921 is equipped with a pen tip tightening buffer slide rail 923 and a pen tip tightening buffer seat 924. The pen tip tightening buffer seat 924 is equipped with a pen tip tightening buffer support rod 925 that can slide relative to it. The pen tip tightening buffer support rod 925 has a tightening buffer limiting head seat and a tightening buffer limiting tail seat at both ends. A tightening buffer spring is fitted on 925. The two ends of the tightening buffer spring can be limited by the tightening buffer limit head seat and the pen tip tightening buffer seat 924, respectively. The tightening buffer spring can cooperate with the pen tip tightening assembly 91 to provide buffer space for pen tip installation. The lower end of the pen tip tightening buffer seat 924 is provided with a pen tip tightening buffer slider 926 that cooperates with the pen tip tightening buffer slide rail 923. The moving end of the pen tip tightening buffer drive device 922 is connected to the pen tip tightening buffer seat 924.

[0198] The operating procedure for the pen tip tightening mechanism 9 is as follows:

[0199] The material conveying mechanism 3 conveys pen barrels that have been detected by the pen tip detection mechanism 8 to have pen tips installed. When the pen barrel with pen tips installed moves to the area where it cooperates with the pen tip tightening mechanism 9, the pen tip tightening drive device 912 and the pen tip tightening buffer drive device 922 simultaneously drive the pen tip tightening seat 914 and the pen tip tightening buffer seat 924 to move towards the material conveying mechanism 3, so that the pen tip tightening push rod 915 and the pen tip tightening buffer support rod 925 simultaneously squeeze towards both ends of the pen barrel, further pressing the pen tip and the pen barrel together to ensure that the pen tip and the pen barrel are installed in place.

[0200] The defective product rejection mechanism 10 includes a defective product rejection box 100 and a defective product rejection assembly. The defective product rejection box 100 and the defective product rejection assembly are symmetrically arranged on both sides of the conveying mechanism 3. The defective product rejection assembly includes a defective product rejection bracket, on which a defective product rejection cylinder is provided. The moving end of the defective product rejection cylinder is provided with a rejection head. The defective product rejection cylinder can drive the rejection head to push the conveying mechanism 3 into the defective product rejection box 100.

[0201] This embodiment provides a processing flow for an automatic metal pen barrel assembly machine as follows: This embodiment of the invention provides a method that can achieve higher material cutting efficiency compared to existing metal pen barrel assembly processing methods.

[0202] First, the processing personnel manually and orderly place the pen barrels to be assembled into the pen barrel unloading mechanism 4.

[0203] The pen barrel feeding mechanism 4 feeds out the pen barrels to be assembled in an orderly manner and places them on the feeding end of the feeding mechanism.

[0204] The material conveying mechanism 3 transports the pen barrel. When it reaches the pen barrel forward and reverse detection mechanism 5, the pen barrel is inspected for forward and reverse orientation. If the inspection results are inconsistent, the material conveying continues, and the pen barrel is turned around uniformly through the first turning mechanism to ensure that the pen barrel is in a uniform orientation, with the pen tip in front and the pen tail in back, that is, the pen tip is facing away from the pen barrel forward and reverse detection mechanism 5.

[0205] After the turning point is completed, the material conveying mechanism 3 continues to convey material towards the unloading end, the pen barrel liner feeding mechanism 6 feeds the liner, and the liner installation device pushes the liner from the pen tail end to the pen tip end. While pushing the material for installation, it also checks whether there is a liner. If no liner is detected, the material is subsequently rejected by the defective product rejection mechanism 10.

[0206] After the inner lining is installed, the material conveying mechanism 3 continues to convey material towards the unloading end, and turns the pen barrel with the inner lining installed in a unified manner through the second turning component, with the pen tip end in the back and the pen tail end in the front.

[0207] After the turning around is completed, the material conveying mechanism 3 continues to convey material towards the unloading end, the pen tip feeding mechanism 7 feeds the pen tip, and the pen tip mounting device 70 pre-installs the pen tip onto the pen tip end of the pen barrel.

[0208] After the pen tip is installed, the feeding mechanism 3 continues to feed the material towards the unloading end. The pen tip detection mechanism 8 checks whether the pen barrel has a pen tip. If no pen tip is detected, the material is then rejected by the defective product rejection mechanism 10.

[0209] After the pen tip inspection is completed, the material conveying mechanism 3 continues to convey material towards the unloading end, and the pen tip tightening mechanism 9 further installs the pen barrel and pen tip into place.

[0210] After the compaction is completed, the material conveying mechanism 3 continues to convey materials towards the unloading end. Defective products are pushed into the defective product rejection box 100 through the defective product rejection component, while qualified products are transported to the finished product hopper 11 through the material conveying mechanism 3 to complete the installation of the metal pen barrel.

[0211] As can be seen from the above, the beneficial effects of the present invention are: by adopting its mechanism, it can effectively solve the problem of low assembly efficiency in the existing technology of manually assembling metal pen barrels. By using this product structure, the material feeding mechanism 3 can accurately feed materials, and the pen barrel, inner liner and pen tip can be automatically unloaded and installed, which can effectively improve the level of automation, reduce labor costs, and improve processing efficiency. Furthermore, the defective product rejection mechanism 10 and the finished product hopper 11 can accurately screen materials, which is conducive to improving the competitiveness of enterprises.

[0212] The specific embodiments described above are preferred embodiments of the present invention and are not intended to limit the specific scope of the present invention. The scope of the present invention includes, but is not limited to, these specific embodiments. All equivalent changes made in accordance with the present invention are within the protection scope of the present invention.

Claims

1. An automatic assembly machine for metal pen barrels, characterized in that: The system includes a working frame, a controller, and a material conveying mechanism. The material conveying mechanism has, sequentially on its side, a pen barrel feeding mechanism, a pen barrel forward / reverse detection mechanism, a first turning mechanism, a pen barrel liner feeding mechanism, a second turning mechanism, a pen tip feeding mechanism, a pen tip detection mechanism, a pen tip tightening mechanism, a defective product rejection mechanism, and a finished product hopper. These components are electrically connected to the controller. The pen tip feeding mechanism includes a pen tip vibrating plate, a pen tip separating assembly, a pen tip anti-crossing assembly, and a pen tip mounting device. The anti-crossing assembly prevents adjacent sets of pen tips from being discharged simultaneously. The discharge end of the pen tip vibrating plate has a guide pipe that curves downwards, and a guide pipe with a [missing information - likely a device or component] at its lower end. A vertically downward vibrating material channel is provided, which can control the pen tip to move downward through uniform vibration. A material receiving component is provided below the vibrating material channel, and a pen tip receiving position is provided on the material receiving component. The vibrating material channel can cooperate with the pen tip separating component to control the pen tip to be discharged one by one and fall into the pen tip receiving position. The material receiving component can cooperate with the pen tip mounting device to install the pen tip on the metal pen. The second turning mechanism includes a second turning mounting plate and a second turning component. The second turning component includes a second turning connecting rod. The two ends of the second turning connecting rod are respectively connected to a second turning seat and a second turning drive component. The second turning drive component can drive the second turning connecting rod to rotate. A second turning lifting cam component is fixedly provided at the lower end of the second turning mounting plate. The second turning lifting cam component can drive the second turning mounting plate to rise and pick up the material.

2. The automatic metal pen barrel assembly machine according to claim 1, characterized in that: The material conveying mechanism includes a first material conveying frame and a second material conveying frame. Multiple first and second material feeding grooves are equally spaced on both sides of the first and second material conveying frames. The first material feeding grooves are positioned higher than the second material feeding grooves. The two ends of the first material conveying frame are a loading end and a unloading end, respectively. A material frame lifting cam assembly is fixedly installed at the lower end of the first material conveying frame. The material frame lifting cam assembly can drive the first material conveying frame to move up and down, realizing the mutual transfer of materials on the first and second material conveying frames. A sliding drive assembly is installed at the lower end of the second material conveying frame. The sliding drive assembly can drive the second material conveying frame to reciprocate between the loading end and the unloading end.

3. The automatic metal pen barrel assembly machine according to claim 2, characterized in that: The first turning mechanism includes a first turning mounting plate and multiple sets of first turning components. The first turning component includes a first turning link. The two ends of the first turning link are respectively connected to a first turning seat and a first turning drive component. The first turning drive component can drive the first turning link to rotate. A first turning lifting cam component is fixedly provided at the lower end of the first turning mounting plate. The first turning lifting cam component can drive the first turning mounting plate to rise and pick up the material.

4. The automatic metal pen barrel assembly machine according to claim 1, characterized in that: The pen barrel feeding mechanism includes a feeding mechanism support, on which a storage box is mounted. A pen barrel dispensing component is located at the lower end of the storage box. The pen barrel dispensing component has multiple pen barrel discharge positions that cooperate with the pen barrels. The pen barrel dispensing component can sort the pen barrels at the lower end of the storage box. A pen barrel separating mechanism is located below each pen barrel discharge position. The pen barrel separating mechanism controls the storage box to discharge pen barrels one by one in an orderly manner. The pen barrel separating mechanism includes a pen barrel separating plate and a pen barrel separating plate driving device. The pen barrel separating plate can cooperate with the pen barrel separating plate driving device to block the pen barrel discharge positions.

5. The automatic metal pen barrel assembly machine according to claim 1, characterized in that: The pen barrel forward / reverse detection mechanism includes a pen barrel forward / reverse detection bracket, a forward / reverse detection proximity switch, and a forward / reverse detection push rod. A forward / reverse limiting bushing is fixedly mounted on the forward / reverse detection push rod. A pen barrel forward / reverse detection cylinder is mounted on the pen barrel forward / reverse detection bracket. A forward / reverse detection seat is mounted on the moving end of the pen barrel forward / reverse detection cylinder. A movable groove is provided in the forward / reverse detection seat, and a forward / reverse detection rod hole is provided on the side wall of the movable groove. The forward / reverse detection push rod is disposed in the forward / reverse detection rod hole, and the forward / reverse limiting bushing is disposed in the movable groove. The forward and reverse detection push rod can slide relative to each other in the forward and reverse detection rod hole. A forward and reverse detection buffer spring is sleeved on the forward and reverse detection push rod and is disposed in the movable groove. The two ends of the forward and reverse detection buffer spring can be limited by the inner wall of the movable groove and the forward and reverse limiting bushing, respectively. The forward and reverse detection proximity switch is fixedly disposed on the forward and reverse detection seat. The forward and reverse detection proximity switch can determine whether the pen is in the correct direction by detecting the relative position of the forward and reverse limiting bushing.

6. The automatic metal pen barrel assembly machine according to claim 1, characterized in that: The pen barrel liner feeding mechanism includes a liner feeding assembly and a liner installation device. The liner feeding assembly includes a liner vibrating plate, a liner transfer assembly, and a liner receiving assembly. The discharge end of the liner transfer plate is connected to a liner direct vibration channel. The end of the liner direct vibration channel away from the liner vibrating plate is provided with a liner picking position. The liner receiving assembly is provided with a liner receiving position. The liner transfer assembly can transfer the liner from the liner picking position to the liner receiving position. The liner receiving assembly can cooperate with the liner installation device to install the liner in the pen barrel.

7. The automatic metal pen barrel assembly machine according to claim 1, characterized in that: The pen tip detection mechanism includes a pen tip detection frame, a pen tip detection proximity switch, and a pen tip detection base. A pen tip detection push rod that can slide relative to the pen tip detection base is provided on the pen tip detection base. A pen tip detection limiting head and a pen tip detection limiting tail are respectively provided at both ends of the pen tip detection push rod. A pen tip detection reset spring is sleeved on the pen tip detection push rod. The two ends of the pen tip detection reset spring can be limited by the pen tip detection limiting head and the pen tip detection base, respectively. The pen tip detection proximity switch is fixedly mounted on the pen tip detection base. The pen tip detection proximity switch can determine whether a pen tip is installed based on the relative position of the pen tip detection limiting tail.

8. The automatic metal pen barrel assembly machine according to claim 1, characterized in that: The pen tip tightening mechanism includes a pen tip tightening assembly and a pen tip tightening buffer assembly, which are symmetrically arranged on both sides of the feeding mechanism. The pen tip tightening assembly includes a pen tip tightening mounting bracket and a pen tip tightening drive device. The pen tip tightening mounting bracket is provided with a pen tip tightening slide rail and a pen tip tightening seat. The pen tip tightening seat is provided with a pen tip tightening push rod. A pen tip tightening slider that cooperates with the pen tip tightening slide rail is provided at the lower end of the pen tip tightening seat. The moving end of the pen tip tightening drive device is connected to the pen tip tightening seat. The pen tip tightening seat can improve the stability of the movement process through the cooperation of the pen tip tightening slide rail and the pen tip tightening slider. The pen tip tightening drive device can push the pen tip tightening push rod towards the pen tip tightening buffer assembly for pen tip installation. The pen tip tightening buffer assembly... The component includes a nib tightening buffer bracket and a nib tightening buffer drive device. The nib tightening buffer bracket is provided with a nib tightening buffer slide rail and a nib tightening buffer seat. The nib tightening buffer seat is provided with a slidable nib tightening buffer support rod. The two ends of the nib tightening buffer support rod are respectively provided with a tightening buffer limiting head seat and a tightening buffer limiting tail seat. A tightening buffer spring is sleeved on the nib tightening buffer support rod. The two ends of the tightening buffer spring can be limited by the tightening buffer limiting head seat and the nib tightening buffer seat respectively. The tightening buffer spring can cooperate with the nib tightening assembly to provide a buffer space for nib installation. The lower end of the nib tightening buffer seat is provided with a nib tightening buffer slider that cooperates with the nib tightening buffer slide rail. The moving end of the nib tightening buffer drive device is connected to the nib tightening buffer seat.

9. The automatic metal pen barrel assembly machine according to claim 1, characterized in that: The defective product rejection mechanism includes a defective product rejection box and a defective product rejection assembly. The defective product rejection box and the defective product rejection assembly are symmetrically arranged on both sides of the conveying mechanism. The defective product rejection assembly includes a defective product rejection bracket, on which a defective product rejection cylinder is provided. The moving end of the defective product rejection cylinder is provided with a rejection head. The defective product rejection cylinder can drive the rejection head to push the conveying mechanism into the defective product rejection box.

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