68results about "Pen repairing" patented technology

The invention discloses a pressing pen and a machining method thereof, and relates to the technical field of pen machining and conveying, the pressing pen comprises a pen shell, one end of the pen shell is connected with a first movable sleeve in an inserted mode, and assembled pen parts are conveyed to a packaging position through a conveying mechanism. By arranging the conveying mechanism, when a telescopic air cylinder stretches, a special-shaped guide rail can move towards a positioning column, at the moment, a second movable pin can move upwards firstly under extrusion guiding of the special-shaped guide rail and then move downwards, and if a pen point faces a connecting shaft and cannot fall into a U-shaped receiving groove, the pen point can be conveyed to the conveying mechanism; the worm wheel drives the rotary disc to rotate by 180 degrees along with continuous extension of the telescopic air cylinder, then one side of the rotary disc can be warped by retracting of the telescopic air cylinder, so that the pen falls to the inner side of the U-shaped material receiving groove, and then the pen falls to the conveyor through clockwise rotation of the U-shaped material receiving groove driven by the motor; in this way, the orientation of the pen can be processed in a unified mode in the conveying process.

The invention belongs to the technical field of ball-point pens, and particularly relates to an automatic ball-point pen assembling machine. Comprising a machining table, the top end of the machining table is provided with a conveying structure, a guiding structure, a refill inserting structure, a rear cover inserting structure and two ejecting and pressing structures, the discharging end of the conveying structure is fixedly connected with a finished product groove, and the guiding structure, the refill inserting structure and the rear cover inserting structure are all located on the oblique rear portion of the conveying structure; and a feeding structure is arranged at a feeding hole of the guide structure. By means of the conveying structure, the feeding structure and the guiding structure, the feeding structure can feed pen holder bodies to the conveying structure through the guiding structure, so that each pen holder body can be conveyed independently, and then the conveying structure is matched to drive the pen holder bodies to be transferred to the pen refill inserting structure and the rear cover inserting structure for assembling of different accessories; a continuous working process is provided for subsequent assembling steps, dislocation and deviation in the assembling process are avoided, and the assembling precision is improved.

Provided is a writing instrument comprising a cylindrical first tubular member, a cylindrical second tubular member inserted inside the first tubular member from one end part of the first tubular member, the second tubular member provided at its side surface with an elastically deformable part able to elastically deform to the outside and to the inside in the radial direction, and a cylindrical or columnar inside member inserted inside the second tubular member from one end part of the second tubular member, an outside surface of the elastically deformable part or an inside surface of the first tubular member having a first fitting part, an inside surface of the elastically deformable part having a second fitting part. The first fitting part is configured to make the elastically deformable part deform to the inside in the radial direction if the second tubular member is inserted into the first tubular member. The second fitting part is configured to make the elastically deformable part deform to the outside in the radial direction if the inside member is inserted inside the second tubular member in a state before the second tubular member is inserted inside the first tubular member, the deformed elastically deformable part returning after insertion of the inside member.

The utility model relates to the technical field of signature pens, and specifically to a precise elastic locking mechanism for a signature pen with a quick refill change function, comprising a pen tube, a pen head, a pen cover, a pen refill, a locking device and a guide clamping device, wherein the pen head is fixedly mounted on the bottom end of the pen tube, the pen cover is movably mounted on the end of the pen head, a top cover is movably mounted on the top end of the pen tube, and the pen refill is fixedly mounted on the bottom end of the top cover, and the bidirectional screw is rotatably mounted inside the pen tube, and the bidirectional screw drives the clamping blocks at both ends to move linearly on the bidirectional screw during rotation, and the two groups of clamping blocks move from the two ends to the middle until the side walls of the clamping blocks contact the elastic groove, and the elastic properties of the elastic groove can fill the small gap between the annular tube and the clamping block, reduce the possibility of vibration and sliding, thereby enhancing the stability of the clamping, realizing the installation locking of the pen refill, and realizing rapid automatic locking after the pen is inserted.

The utility model discloses refill line drawing testing and wax sealing integrated equipment which comprises a machine table, a material conveying mechanism is arranged on the machine table, a feeding mechanism, a line drawing testing mechanism, a pen point wiping mechanism and a wax sealing mechanism are sequentially arranged on the machine table in the moving direction of the material conveying mechanism, the feeding mechanism is used for placing refills on the material conveying mechanism in order, and the wax sealing mechanism is used for sealing the refills. The line drawing testing mechanism is used for conducting line drawing testing on the refills, the pen point wiping mechanism is used for cleaning the refills on the material conveying mechanism, and the wax sealing mechanism is used for conducting wax sealing on the refills. A discharging mechanism connected with the controller is arranged on one side of the wax sealing mechanism, the wax sealing mechanism is connected with the discharging mechanism, the wax sealing mechanism can place the wax-sealed refill on the discharging mechanism, and the discharging mechanism is used for sending the machined refill out of the machine table. According to the utility model, the pen refill line drawing test and the wax sealing are integrated on one device, and an automatic processing mode is adopted in the whole process, so that the manual participation is reduced, and the processing efficiency of the device is improved.

The utility model provides a device for assembling a marker pen tip and a pen barrel, including a device body, the upper end of the device body near the left side is rotatably connected to a first transmission shaft, the upper end of the first transmission shaft is connected to a first storage tray, the outer ring of the first transmission shaft is penetrated by a first gear, the first gear is meshingly connected to a second gear, the second gear is penetrated on the outer ring of the rotating shaft, the rotating shaft is connected to a motor, the motor is arranged inside the device body, and the first transmission shaft is connected to the second transmission shaft through a toothed belt. The docking frame of the utility model moves down and contacts with the corresponding limit frame below, the marker pen tip extends into the through hole groove, and the docking frame continues to move down, so that the limit frame compresses the spring. In this process, the marker pen tip and the pen barrel are docked, and the marker pen tip is assembled and inserted into the pen barrel. When the limit frame moves down and contacts and presses the button, the marker pen tip is installed into the appropriate position in the pen barrel, and the marker pen tip outside the pen barrel retains an appropriate length.

A writing instrument part that improves the releasability of a core pin is provided. In a writing instrument part by the insert molding method in which a wooden barrel material made of natural wood flour and a water-soluble resin binder is injected into a mold, the wooden barrel material and a core pin having a paper straw inserted therein are integrated, and a two-layer structure having a paper straw layer as an inner layer and a wooden barrel layer as an outer layer is formed.

The application discloses a kind of automatic connecting device of pen sleeve and inner bushing, including connecting mechanism;It is used to connect pen grip and pen sleeve and inner bushing;Further including transmission assembly, transmission assembly outside is equipped with lower clamping mechanism and upper clamping mechanism, by transmission assembly top end is equipped with pusher assembly and drives upper clamping mechanism along transmission assembly axial and is engaged with lower clamping mechanism, and make lower clamping mechanism and transmission assembly adhere to rotation, to realize that upper clamping mechanism and lower clamping mechanism respectively clamped pen grip and pen sleeve are rotated and locked;In the application, pen grip and pen sleeve are abutted by upper clamping mechanism and lower clamping mechanism clamping, simultaneously lower clamping mechanism drives pen sleeve to rotate, so that pen sleeve and pen grip are connected, and there is no belt in the clamping assembly in the upper clamping mechanism, so that pen sleeve and pen grip rotate and connect, and pen sleeve and pen grip rotate synchronously after tightening, to avoid rotation transition when pen grip and pen sleeve are connected, to avoid pen sleeve damage.

The invention relates to the field of magnetic suspension pens, and discloses a magnetic suspension pen and a machining process thereof, which solve the problem that a supporting plate can hinder welding in the welding process of a base at present, the magnetic suspension pen comprises a welding machining mechanism, the welding machining mechanism comprises a machining table, and supporting frames are symmetrically arranged on the two sides of the machining table; wherein one supporting frame is provided with a welding control piece, the other supporting frame is provided with a pushing bending piece, the machining table is provided with a rotating driving piece for supporting and fixing the supporting plate, the welding control piece is used for welding the base and the straight-plate-shaped supporting plate, the base is arranged to be a square block, and the base is arranged to be a square block. According to the welding device, the supporting plate can enter the bending position after being welded, so that the end, provided with the base, of the supporting plate is firstly welded and then bent, the situation that movement of a welding gun is hindered after the supporting plate is bent is avoided, and welding is convenient.

The utility model relates to the technical field of gel pen assembling, in particular to an automatic gel pen assembling machine which comprises a blocking plate, a pulling frame, a collecting frame, a guiding assembly and a sliding assembly, the blocking plate is installed on a fixed inclined plate in a sliding mode through the guiding assembly, and the pulling frame is fixedly installed on the blocking plate and located on the side, away from a first positioning groove, of the blocking plate. A collecting frame is slidably mounted on a fixed inclined plate through a sliding assembly, a second positioning groove in a movable inclined plate is driven by a telescopic device to be aligned with a first positioning groove, so that refills stacked in the second positioning groove can automatically enter a pen holder in the first positioning groove, and assembling is completed; and the blocking plate is separated from the first positioning groove under the cooperation of the guiding assembly, the pen holder containing the refill slides into the collecting frame to be rapidly collected, and then the assembling efficiency is improved.

The utility model discloses automatic water color pen assembling equipment which comprises a machine frame, an assembling mechanism and a conveying belt are arranged above the machine frame, a first connecting frame is arranged on one side of the machine frame, the conveying belt extends towards one end of the machine frame, an overturning base is arranged on the first connecting frame, and one end of the overturning base is rotationally connected with the first connecting frame. A supporting block is arranged above the first connecting frame, the bottom of the overturning base abuts against the supporting block, a fence is arranged above the overturning base, a pressure sensing device is arranged on the side, away from the conveying belt, of the fence, a cavity is formed in the overturning base, and the pressure sensing device is arranged in the cavity. An air channel communicated with the cavity is formed in the side wall of the overturning seat, and a plurality of air holes communicated with the cavity are formed in the top wall of the overturning seat; the device further comprises an air pump which is connected with the air channel through a hose. The device further comprises a controller, the pressure sensing device and the driving device are both electrically connected with the controller, a second connecting frame is arranged on one side of the first connecting frame, and a collecting box is arranged above the second connecting frame.

The present invention relates to a writing instrument. The writing instrument includes a barrel (10), a writing head (30) that protrudes forward of the barrel (10) to eject ink when pressed against a writing surface, and an ink supply (50) that supplies ink to the writing head (30) from the rear side. The writing head (30) is located at a separation position that is spaced apart forward of the ink supply (50), and is moved to a contact position that contacts the ink supply (50) from the front side by a prescribed operation.

A writing instrument part that improves the releasability of a core pin is provided. In a writing instrument part by the insert molding method in which a wooden barrel material made of natural wood flour and a water-soluble resin binder is injected into a mold, the wooden barrel material and a core pin having a paper straw inserted therein are integrated, and a two-layer structure having a paper straw layer as an inner layer and a wooden barrel layer as an outer layer is formed.

The utility model discloses a writing brush head trimming device, which belongs to the technical field of writing brush head trimming, and comprises a shell, a moving assembly is arranged on the inner wall of the shell, the moving assembly comprises two first sliding rods, a sliding block, a support frame, a first rotating shaft, a threaded column and a first motor, and a clamping assembly is arranged on the upper surface of the sliding block. The clamping assembly comprises two fixing plates, two second sliding rods, two sliding plates, a plurality of springs, a plurality of clamping plates and a plurality of balls, a positioning plate is fixedly connected to the upper surface of a sliding block, a shaping assembly is arranged on the surface of the shell, and the writing brush head stained with water is moved to the surface of a shaping plate by arranging the shaping assembly; by arranging the shaping assembly, the shaping plate rotates around the writing brush head, under the action of the shaping plate, the writing brush bristles are gathered together, by arranging the trimming assembly, under the action of two gears, the first trimming wheel and the second trimming wheel rotate in the opposite directions, the bent writing brush bristles are pulled out, and the writing brush bristles are trimmed.

The invention relates to the technical field of industrial marking tools, and discloses an acid-water-resistant and erasable marking pen special for a battery. The pen body comprises a sealing structure, a pen point and an ink storage core for storing ink; the ink is prepared from modified acrylic resin, alcohol-soluble polyamide resin, organic silicon resin, a silane coupling agent, acid-resistant dye, an auxiliary coloring agent, industrial alcohol, isopropanol, methylbenzene, citric acid, borax, a nonionic surfactant and an antioxidant according to a specific proportion. By optimizing the ink formula and simplifying the pen body structure, the stable writing function in acidic and humid environments is achieved, meanwhile, it is ensured that marks can be completely erased through common industrial alcohol without leaving traces, and the ink is low in cost, easy to manufacture and convenient to use.

The utility model discloses an ink adding device for gel pen production. The ink adding device comprises a machine table, an ink injection mechanism, a rotating mechanism and a pen tube tidying mechanism. Supporting legs are arranged at the lower end of the machine table, and an L-shaped support is arranged at the rear end of the upper surface of the machine table; the ink injection mechanism is arranged at the upper end of the L-shaped bracket; the rotating mechanism comprises a rotating shaft and a turntable, the lower end of the rotating shaft is rotationally connected to the bottom wall of the machine table, the upper end of the rotating shaft is fixedly connected with the turntable, an angle sensor is arranged in the center of the lower surface of the machine table, and the middle of a counting shaft of the angle sensor is fixedly connected with the center of the lower end of the rotating shaft; the pen tube tidying mechanism comprises a circular top plate, and a sliding hole in the middle of the circular top plate is in sliding connection with the rotating shaft; according to the ink adding device for gel pen production, a plurality of pen tubes can be automatically tidied, the influence on the ink adding effect is avoided, meanwhile, the pen tubes with different sizes can be clamped, and the self-adaptability is high.

The utility model provides a brush mixing machine for writing brush production, which comprises a base, a water tank is fixedly mounted on the top side of the base, a sliding frame is slidably connected to the top side of the water tank, the sliding frame is divided into a vertical end and a horizontal end, and a pressing plate is slidably connected to one side, close to the horizontal end, of the vertical end. The length and the width of the pressing plate are respectively equal to those of the horizontal end; and a carding mechanism is mounted on the top side of the base. Through cooperation of the pressing plate and the sliding frame, pen bristles can be clamped conveniently, through cooperation of the sliding frame and the water tank, stable movement of the sliding frame can be achieved, the tedious operation that an operator holds a clamp and the pen bristles by hands is avoided, and product convenience is improved; through cooperation of the driving disc and the connecting rod, stable reciprocating motion of the connecting rod can be driven, and through cooperation of the connecting rod and the steel comb, stable movement of the steel comb is driven, so that brush bristles are continuously combed and mixed, and the production efficiency of products is improved.

The utility model discloses a ball pen refill ink filling and sealing equipment, including conveyer, filling mechanism and negative pressure mechanism, and the refill is placed on the conveyer with equal interval, and filling mechanism and negative pressure mechanism are located conveyer's left and right sides respectively, and filling mechanism is aligned with the left end opening of refill and imports silicone oil and ink to the refill, and negative pressure mechanism is aligned with the right end opening of refill and forms negative pressure in the refill. The utility model discloses through negative pressure mechanism work in the refill and form negative pressure again through filling mechanism from the left end opening of refill to the refill and fill silicone oil and ink, and negative pressure environment makes the bubble in the ink can expand and break quickly, realizes the purpose of eliminating the bubble in the ink.

The application relates to a pen point assembling tool and relates to the technical field of a refill assembling device, which comprises a machining table, the machining table is provided with a clamping assembly and a fixing assembly, the clamping assembly comprises a clamping block and an assembling table, the upper side of the assembling table is provided with a feeding assembly; the feeding assembly comprises a blanking box, the blanking box is in sliding connection with the upper side of the assembling table, the upper side of the assembling table is provided with a plurality of installation grooves for placing guide cores, and the lower side of the blanking box is provided with a blanking port; the fixing assembly comprises a pressing plate which is arranged on the upper side of the installation groove, a plurality of clamping grooves for inserting pen points are arranged on the clamping block, and the pressing plate and the clamping block are in sliding connection with the upper surface of the machining table; the feeding assembly, the clamping assembly and the fixing assembly are cooperatively arranged, the assembling of the pen point and the guide core is completed without damaging the guide core, the pen point and the guide core can be assembled in batches, and the assembling efficiency of the guide core and the pen point is improved.

An embodiment of the present application provides an automatic pen assembly machine, which includes a conveying platform and a pen barrel blanking device, a pen barrel detection device, a refill tube installation device, an ink filling device, a regulator assembly installation device, and a refill tube and pen barrel connection device that are sequentially arranged along the conveying direction of the conveying platform; realizing the automatic assembly of ballpoint pens, greatly improving the assembly efficiency, and at the same time, improving the assembly quality.

The utility model relates to the technical field of needle tube pen point processing, and discloses a needle tube pen point efficient necking device which comprises a control mechanism, an operation groove and a base, a telescopic rod is installed at the lower end of the control mechanism, a motor is installed at the lower end of the telescopic rod, a dismounting plate is installed at the lower end of the motor, and a spinning head is installed at the lower end of the dismounting plate; a lifting chamber is installed on the rear end wall of the base, a driving motor is installed at the upper end of the lifting chamber, and the driving motor drives a ball screw to rotate, drives a screw sliding base to move downwards, drives a sliding frame to move downwards and drives a control mechanism to move downwards through a motor shaft; the control mechanism controls a telescopic rod to move downwards, drives a spinning head to move downwards and starts a motor; the spinning head is driven to rotate, the inner wall of the needle tube pen point is subjected to strength shrinking operation, spinning of the spinning head replaces rolling of a ball, gaps are prevented from being generated during rolling operation of the ball, precision is improved, irregular deformation of the inner wall of the pen point is prevented, the rejection rate is low, precision is sufficient, and the precision requirement is met.

The utility model discloses a writing brush clip, which relates to the technical field of drawing auxiliary appliances, and comprises a first cover body, a second cover body and a heating assembly, the first cover body is rotatably arranged on the second cover body, and the first cover body is provided with a heating position and a closing position; the first cover body can move between a heating position and a closing position in a reciprocating mode relative to the second cover body, and the heating assembly comprises a first heating plate and a second heating plate. According to the technical scheme, the first heating plate and the second heating plate are adopted to heat the brush hair of the writing brush or the gouache, redundant water in the brush hair can be effectively evaporated, fibers are helped to be reshaped after being softened, the loose brush tip and the loose brush tip are tightly gathered again, the original elasticity and the original modeling capacity are recovered, and the service life of the writing brush or the gouache is prolonged. According to the technical scheme, the pen bristles can keep good pen tip and pen point states, the drawing precision and the line quality can be improved, the satisfaction degree and creation enthusiasm of users are enhanced, and therefore art works with higher quality can be produced.

The intelligent pen refill preparation device comprises an intelligent pen refill preparation device body, an ink storage tank is arranged on the intelligent pen refill preparation device body, a cover body is connected to the interior of the ink storage tank through threads, a discharging opening is formed in the ink storage tank, and a cleaning mechanism is arranged on the ink storage tank. The intelligent pen refill preparation device comprises an intelligent pen refill preparation device main body, a door body is arranged on the intelligent pen refill preparation device main body, a handle is fixedly connected to the door body, a collection shell is fixedly connected to the interior of the intelligent pen refill preparation device main body, and an ejection mechanism is arranged on the intelligent pen refill preparation device main body. The pen refill on the device can be conveniently taken out, and the inner wall of the ink storage tank can be conveniently cleaned.

The invention relates to a flexible pen point and a micron liquid film preparation device and method, a first brush body and a second brush body are arranged in an outlet runner of the flexible pen point, a plurality of long brushes of the second brush body are located between adjacent short brushes of the first brush body, and the flexible pen point serves as a spray nozzle outlet of the micron liquid film preparation device. During preparation, the first brush body is driven to move back and forth relative to the second brush body to drive the short brush and the long brush to swing back and forth, so that a solution in the spray head flows to the tail end of the long brush through the outlet flow channel, the first liquid supply hole of the first brush body and the second liquid supply hole of the second brush body by a capillary phenomenon, and a liquid cone is formed and is directly written on a collecting device which moves relatively; the micron liquid film is prepared through micro-pen direct writing, smooth direct writing of a high-concentration and high-viscosity solution can be achieved, the uniformity, smoothness and surface quality of liquid film preparation are improved, the width of the liquid film is easy to regulate and control, the machining precision and preparation efficiency of the micron liquid film are improved, and the application range of the micron liquid film is widened.

The present invention discloses a newly designed writing tool, which relates to the technical field of writing tools and includes a pen body inner frame 1. A pen body outer shell 1 and a pen body outer shell 2 are sleeved on the outer surface of the pen body inner frame 1. A replaceable grip is inserted into the pen body inner frame 1. An air-proof sleeve is installed at the right end of the replaceable grip located inside the pen body inner frame 1. A pen body inner frame 2 and a pen body inner frame 3 are sleeved on the outer surface of the replaceable grip. A pen body inner frame 4 is installed at the left ends of the pen body inner frame 2 and the pen body inner frame 3. Since the replaceable grip is rotatably connected to the air-proof sleeve, and a sealing gasket is provided at the connection between the replaceable grip and the air-proof sleeve, the airtightness of the pen tube in the air-proof sleeve is effectively improved, and the contact between the pen tube and the outside air is effectively prevented, so as to avoid the phenomenon that the pen tube becomes dry and cannot be written. The wettability of the pen tube in the air-proof sleeve is greatly improved, providing a better environment for the preservation of the pen tube.

The utility model discloses an anti-deformation press-fitting structure and spring pen point assembling equipment with the same, belongs to the technical field of spring pen point assembling, and realizes assembling of a spring pen point through a flexible press-fitting piece. The flexible press fitting part comprises a first assembling cover, a second assembling cover and a wind resistance cover, the first assembling cover and the second assembling cover form a circular ring cover, a side block is arranged at the butt joint position of the first assembling cover and the second assembling cover, a mounting screw hole is formed in the end face of the side block, the wind resistance cover is arranged in the circular ring cover, and a connecting pipe is arranged at the lower end of the wind resistance cover. The flexible press-fitting piece is used for ensuring correct assembly of the spring pen point, the assembly sealing performance is guaranteed, air leakage pollution is avoided, and the product quality is improved. An advanced pneumatic system is adopted to control automatic press fitting, the operation accuracy is improved, and the assembling efficiency and quality are enhanced. The rotary assembly table prevents the spring pen point from deforming, and strict requirements of customers are met. The measures improve the production efficiency, ensure the high-quality consistency of products and enhance the market competitive advantage.

The utility model provides a pen tube and pen core assembly device, including a device body, the inner top end of the device body passes through and is rotatably connected to a first transmission shaft, the outer ring of the first transmission shaft passes through and is provided with a first gear, the first gear is meshedly connected to a second gear, the second gear passes through and is provided on the outer ring of the first rotating shaft, the first rotating shaft is connected to a motor, the motor is provided inside the device body, the upper end of the first transmission shaft is connected to a first storage rack, and the first transmission shaft is connected to the second transmission shaft through a toothed belt. The utility model energizes the corresponding electromagnet body so that the electromagnet body and the magnet are adsorbed, which is used to limit the position of the pen tube after flipping, and by rotating the pen tube to the bottom of the corresponding connecting rack, the second storage rack is pulled and adjusted under the action of the first electric telescopic rod, so that the clamped pen core is loaded into the pen tube, and the limiting adjustment rack and the connecting rack arranged in a ring array are presented, which is conducive to the continuous assembly of the pen tube and the pen core.

The utility model discloses a pen point wiping device used on pen refill wax sealing equipment, the pen refill wax sealing equipment comprises a machine table, a material conveying mechanism is arranged on the machine table, the pen point wiping device comprises a wiping rotating assembly and a wiping assembly, the wiping rotating assembly can drive a pen refill to rotate, and the wiping assembly is used for removing printing ink on a pen point; the wiping assembly comprises a wiping fixing seat, the wiping fixing seat is connected with the machine table, an unwinding roller, a wiping roller and a cloth pulling assembly are arranged on the wiping fixing seat, the unwinding roller and the wiping roller are rotationally connected with the wiping fixing seat, the unwinding roller is used for containing roll wiping cloth, and the roll wiping cloth can be sequentially stretched and laid on the wiping roller and the cloth pulling assembly. And the wiping roller is connected with the refill on the material conveying mechanism. The pen point of the refill can be automatically wiped, so that printing ink or dust on the pen point is removed; manual operation is replaced by a machine, the wiping efficiency can be improved, the situation of missing wiping can be avoided, and the machining yield is increased.

The utility model relates to the field of stationery processing, in particular to a pen neck protective sleeve assembling jig. The pen neck sheath assembling jig comprises a top plate, a bottom plate, a pressing plate and a pen neck fixing table, and the top plate comprises a top plate body and ejector pins arranged on the top plate body; the bottom plate comprises a bottom plate body, and a fixing needle and a centre hole which are arranged on the bottom plate body; the pressing plate is provided with a fixing needle hole, and the fixing needle penetrates through the fixing needle hole so that the bottom plate can be movably connected with the pressing plate. The pen neck fixing table comprises a pen neck fixing part which is used for fixing the pen neck and enabling the pen neck to be coaxial with the fixing needle; wherein the top plate, the bottom plate, the pressing plate and the pen neck fixing table are sequentially arranged in the axis direction of the pen neck, and the ejector pin penetrates through the ejector pin hole and abuts against the pressing plate; when the top plate moves towards the pen neck fixing table, the ejector pin pushes the pressing plate to slide along the fixing needle so that the protective sleeve arranged on the fixing needle in a sleeving mode can be installed on the pen neck of the pen neck fixing part. The pen neck protective sleeve assembling jig can be used for assembling the protective sleeve to the pen neck.