41results about How to "Guaranteed printing quality" patented technology

The invention relates to a medical high polymer material 3D intelligent printing method based on a selective laser sintering process. The method comprises the following steps that optimal initial process parameters are recommended based on material characteristics and part requirements; carrying out processing according to the optimal initial process parameters, and monitoring a processing material in real time through a sensor; if machining defects are monitored, an AI model is adopted to calculate and adjust technological parameters, and meanwhile, local repair is carried out on the detected defects; after printing of each layer is completed, the technological parameter database is updated, and technological parameters of subsequent layers are optimized until the machining process is finished; in the printing process, once defects are monitored, the AI model can quickly calculate and adjust process parameters, manual intervention is not needed, and the time for finding and solving problems is greatly shortened; meanwhile, the reinforcement learning algorithm can continuously learn and optimize a process parameter adjustment strategy, so that adjustment is more accurate and efficient, and repeated printing and repair time caused by unreasonable parameters are reduced.

The utility model discloses a printing device with a three-dimensional multi-surface printing function, which comprises an operating platform, a plurality of fixed rods arranged on the operating platform, a top plate arranged at the end parts of the fixed rods, a movable plate arranged on the fixed rods in a sliding manner, a mounting frame arranged on the movable plate, a printing net arranged in the mounting frame, a driving mechanism arranged on the top plate, and a transverse plate arranged on the movable plate, the output end of the second electric push rod is connected with a mounting plate; a mounting rack is mounted below the mounting plate; a mounting rod is arranged in the mounting rack; an extrusion roller is rotationally arranged on the mounting rod; the two sides of the box body are printed at the same time, time is greatly saved through the design, printing efficiency is improved, operation errors possibly caused by overturning of the box body are reduced, and stability of printing quality is further guaranteed.

The application discloses a body structure and a printer. The body structure comprises a casing and a printing assembly. The mounting cavity of the casing has a first bottom wall surface and a support surface arranged at intervals in the thickness direction of the body. The printing assembly comprises a print head located in the mounting cavity. The lower edge of the printing area is located between the first bottom wall surface and the support surface or is lower than the first bottom wall surface. The consumable box can be supported on the support surface, and the bottom surface thereof is located between the support surface and the first bottom wall surface or is flush with the support surface. That is, part of the consumable box is accommodated in the space between the support surface and the first bottom wall surface, so that the body structure can be adapted to consumable boxes with different thickness sizes, and the versatility of the body structure is improved. The body structure of the application also ensures that the printing paper is always located in the printing area in the thickness direction of the body, avoids offset printing or empty printing, and guarantees the printing quality.

This invention belongs to the technical field of label printing equipment, and specifically relates to a label printer with a self-adjusting function, comprising an upper casing and a lower casing. A drive rod is rotatably mounted on the front side of the interior of the lower casing. A push roller sleeve is fitted onto the rod wall of the drive rod. A top plate is provided inside the lower casing to cooperate with the push roller sleeve. A moving gear is fitted onto the rod wall of the drive rod. A stationary gear meshes with the moving gear and rotates on the inner wall of the lower casing. This invention can reduce the waste of ribbon consumables through adaptive adjustment when the thermal transfer printhead is powered on. It can also utilize recycled release paper, combined with an adhesive pad for on-site adhesive application of the label paper, changing the traditional label paper roll design. There is no consumption of the release paper substrate. Combined with the design that reduces ribbon consumption, it can reduce the frequency of changing label paper rolls and ribbons during printing. It is convenient to use and has a compact and aesthetically pleasing overall design.

A calendering machine sucking device, it includes sucking box, the top opening of the sucking box is connected with cloth guide roller through bearing assembly, the outer surface of the cloth guide roller is fixed with spiral distributed brush, the top of the sucking box is connected with one end of first bellows through flange, the other end of the first bellows is communicated with the air inlet of fan, the air outlet of the fan is connected with the top end of second bellows through quick release joint, the bottom end of the second bellows is detachably connected with silk screen cylinder through clamp, the bottom of the silk screen cylinder extends to the inner cavity of water storage bucket, and the water body that submerges the bottom of the silk screen cylinder is filled in the water storage bucket, the device has novel structure, ingenious idea, increases fan, water storage bucket and silk screen cylinder and removes the impurities such as flower hair on the grey cloth, the device has good hair sucking effect, good dustproof effect, product quality is improved, and the situation of printing after printing is obviously reduced.

The invention discloses identification printing equipment for a ceramic resistor, and relates to the field of code spraying and printing. According to the technical scheme, the device comprises an equipment box, a feeding assembly and a receiving assembly are assembled on the two sides of the equipment box correspondingly, and the feeding assembly and the receiving assembly are used for feeding and receiving correspondingly; the code spraying mechanism is assembled on the equipment box and is used for spraying and printing; the material guide groove is fixed on the equipment box and is used for guiding materials; the rotary adsorption mechanism is assembled below the material guide groove and is used for adsorbing the material belt; the acquisition unit is arranged on the equipment box and is used for acquiring working data in real time; and the quality analysis module calculates a code spraying quality index based on the work data formulation and compares the code spraying quality index with a preset code spraying quality index threshold value to judge whether the code spraying quality index is abnormal or not, when the material belt passes through the material guide groove, the material belt is rotationally adsorbed and fixed through the rotary adsorption mechanism, and the material belt passes through the material guide groove. The material belt conveying stability is improved, and the code spraying quality is guaranteed.

The utility model discloses a wrinkled digital printing nylon taffeta fabric, and relates to the technical field of fabrics. The key points of the technical scheme are as follows: the touch pad comprises a base layer, a plurality of prints are fixedly connected to the base layer, a plurality of corrugated sections with wavy sections are formed on the base layer, and contact pieces located between the adjacent corrugated sections are fixedly connected to one side, far away from the prints, of the base layer; the thickness of the two ends of the contact piece in the length direction is larger than that of the middle portion of the contact piece, the cross section of the middle portion of the contact piece is in a wave shape, and a plurality of through holes are formed in the base layer, and the through holes and the patterns are arranged in a staggered mode. And the nylon profiled fibers ensure the wear resistance of the fabric and improve the overall ventilation effect of the fabric at the same time.

The Z-axis coaxiality decoupling assembly of the 3D printer comprises an upper plate, a middle plate and a lower plate which are arranged in a stacked mode from top to bottom, first sliding structures are installed between the upper plate and the middle plate at intervals, and second sliding structures are installed between the middle plate and the lower plate at intervals; the sliding direction of the first sliding structure and the sliding direction of the second sliding structure are both horizontally arranged and perpendicular to each other. Therefore, movement interference in the X-axis direction and the Y-axis direction is effectively decoupled through the first sliding structure and the second sliding structure which are horizontally arranged, extra force and moment generated by the coaxiality problem are solved, extra vibration or noise is reduced or even avoided, abrasion is reduced, stable Z-axis movement is guaranteed, the service life of the mechanism is prolonged, and the printing quality is guaranteed.

The utility model provides a kind of self-adapting multi-thickness packaging material printing's intaglio printing machine, it is related to printing machine technical field, including bottom plate, further include: self-adapting printing assembly, self-adapting printing assembly includes support seat connected on bottom plate, support seat is provided with moving seat inside, servo motor is installed on moving seat, in the utility model, servo motor drives rubber roller rotation, cooperation plate cylinder is completed printing, when material thickness changes, moving seat slides along guide rod, telescopic spring is adaptively buffered adjustment, simultaneously, first rotating block is linked with second rotating block, auxiliary moving seat stable displacement, ensure that rubber roller and plate cylinder pressure adaptation, in auxiliary printing assembly, the scraper supported by support plate is close to plate cylinder, scrapes extra ink, guide rod guarantees that moving seat slides smoothly, fixed seat provides fulcrum for rotating block, realizes the self-adapting stable printing to different thickness materials, guarantees pressure adaptation and printing quality.

The invention discloses an intelligent switching system for food packaging and printing. The intelligent switching system comprises a multi-mode sensing unit, a prediction and control core, a dynamic response type actuator interface, a non-mechanical actuator module and an intelligent cleaning and maintaining module, instantaneous full-automatic switching among different product specifications, colors and processes is realized by regulating and controlling physical and chemical parameters of printing ink, jet printing behaviors and base material states in milliseconds. By the adoption of the scheme, the switching time can be shortened to 200-500 milliseconds from 15-45 minutes, the rejection rate is reduced to 0.1% or below, and the equipment efficiency and compatibility are remarkably improved.

The utility model discloses a kind of multi-material mixing feeders for 3D printing, it is related to 3D printing technical field;And the utility model includes bunker, the lower surface of bunker is fixedly connected with discharge pipe, the upper surface of bunker is fixedly connected with connecting pipe, feeding pipe is communicated with the outer surface annular array of connecting pipe, the upper surface of connecting pipe movably is equipped with cover, connecting pipe and cover are equipped with connecting assembly between, the inside of bunker and discharge pipe and the upper surface of cover are commonly equipped with clear jamming type stirring mechanism, the even stirring and mixing of material can be realized by the clear jamming type stirring mechanism, in the stirring process, the material at discharge port is scraped and cleaned synchronously by the mechanism, effectively avoid the outlet blockage problem caused by material accumulation, caking, by connecting assembly, stirring structure is designed into split type, and this detachable design greatly simplifies the cleaning maintenance process of mixing feeder.

The application relates to a printing machine centralized ink supply device and relates to the technical field of printing equipment. The printing machine centralized ink supply device comprises an ink barrel, a driving piece, a conveying piece and a mixing piece. A pushing ring plate is slidably connected in the ink barrel. The pushing ring plate divides the space in the ink barrel into a storage cavity and a mounting cavity arranged in sequence along the vertical direction downwards. The conveying piece comprises an inlet pipe and an outlet pipe. The inlet pipe and the outlet pipe are arranged at the waist of the ink barrel and are communicated with the storage cavity. The mixing piece is arranged in the ink barrel and comprises a filtering ring plate and a liquid return pipe. One end of the filtering ring plate is connected to the bottom wall of the mounting cavity and encloses the bottom wall of the mounting cavity to form a filtering cavity. The other end of the filtering ring plate extends into the storage cavity, and the part extending into the storage cavity is provided with filtering holes. One end of the liquid return pipe is arranged at the top of the ink barrel and is communicated with the storage cavity. The other end of the liquid return pipe is arranged at the bottom of the ink barrel and is communicated with the filtering cavity. The application has the effect of keeping the concentration of the ink uniform.

This utility model relates to the field of printing press technology, and more particularly to a feeding device for a high-speed printing press, comprising an industrial high-speed printing press and a feeding mechanism. The feeding mechanism includes a base and a structural groove. A slider is slidably engaged inside the structural groove. A support is fixedly installed on the upper side of the slider. A first electric push rod is fixedly installed on the support. A pressure sensor is fixedly installed on the output end of the first electric push rod. A hollow column is fixedly installed on the side of the pressure sensor. A rubber abutment ring is fixedly installed at the end of the hollow column. A connecting rod is slidably inserted into the inner side of the hollow column. A spring is fixedly connected between the connecting rod and the inside of the hollow column. This utility model, through its feeding mechanism, increases the conveying tension of the printing roll when the printing roll is relatively loose during feeding. This increases the frictional resistance during unloading, thereby ensuring the printing roll is laid flat and wrinkle-free upon entering the printer, guaranteeing printing quality and enhancing practicality.

This invention provides a method, system, and electronic device for controlling curved surface screen printing. The technical solution is as follows: Based on a pre-obtained correspondence between the curved surface rotation angle and the curved surface radius, a correspondence between the curved surface rotation angle and the curved surface arc length is obtained; based on this correspondence, the maximum height of the curved surface to be printed under different rotation angles is determined; the corresponding curved surface rotation angle is determined by constraining the maximum height, thereby determining the optimal contact angle between the screen and the curved surface to be printed; the horizontal and vertical coordinates of the corresponding optimal contact point are determined based on the optimal contact angle; the four-axis positional relationship is determined based on the horizontal and vertical coordinates and the correspondence between the curved surface rotation angle and the curved surface arc length; based on the four-axis positional relationship, the difference between the horizontal coordinate of the screen and the horizontal coordinate of the optimal contact point is used as a constant control quantity to simulate the four-axis motion to obtain the four-axis motion curve, thereby controlling the four axes of the curved surface screen printing machine to perform corresponding movements. This invention solves the problems of low efficiency and low printing quality in existing curved surface screen printing control methods.

The utility model provides a kind of blanket automatic separation and deviation correction's subassembly, install in printing machine, it is related to printing equipment technical field, including the separation mechanism and deviation correction mechanism between the left end plate and right end plate of printing machine, separation mechanism is located above deviation correction mechanism, main motor is installed by fixed frame outside left end plate, the rotating shaft sleeve of main motor is equipped with main gear, main gear is connected with main transmission gear by main chain transmission, main transmission gear inner wall transmission connection has main shaft, main shaft rotatably be arranged between left end plate and right end plate;Main gear, main chain, main transmission gear and main shaft are rotated by main motor drive, main shaft, deviation correction mechanism and separation mechanism are all connected with blanket rolling, realize the rolling conveying of blanket, automatic deviation correction and automatic separation from main shaft, to improve the efficiency and precision of blanket processing, ensure printing quality, reduce manual operation intensity.

The utility model is specifically related to a compact automatic ink replenishing printing device, including mounting seat and apron, be equipped with first sliding slot on the mounting seat, be equipped with second sliding slot and third sliding slot respectively on the mounting seat side of first sliding slot, the inside of first sliding slot is connected with printing plate slidingly, be provided with staggered ink replenishing subassembly in the second sliding slot, staggered ink replenishing subassembly includes extension plate, guide plate, floating plate, spring and ink box, the inside of third sliding slot is connected with the top head slidingly, the mounting seat is fixedly connected with first air cylinder, second air cylinder and third air cylinder respectively on first sliding slot, second sliding slot and third sliding slot place. The utility model has the advantages of realizing automatic printing and ink replenishing processing, guaranteeing printing quality, and compact overall structure, small space occupation.

The utility model provides a coating roller and coating equipment, and belongs to the technical field of coating, the whole body sleeving connection of an inner roller body of the coating roller is changed into the mode that the inner roller body is only sleeved in the middle section, and two sections are suspended, so that the two ends of the length of an improved outer roller body cannot be influenced by the deformation of the two ends of the length of the inner roller body, and the coating quality is improved. Therefore, the printing quality of the coating roller in high-precision printing is ensured.

The utility model discloses printing equipment for printed cloth processing, which belongs to the field of printing equipment and comprises a base, a first mounting seat and a second mounting seat are fixedly connected onto the base and are oppositely arranged, and a compression roller is rotatably mounted between the first mounting seat and the second mounting seat. A power mechanism is arranged on the first mounting base and comprises a mounting disc and a power assembly. The printing device has the beneficial effects that a moving mechanism, a locking mechanism and a butt joint mechanism are arranged, a moving seat is matched with an L-shaped sliding groove, the printing roller can be conveniently disassembled and replaced, the working efficiency is improved, the moving seat can be locked through a moving rod, a rotating disc is pushed to abut against a mounting sleeve during locking, the stability of the printing roller during rotation is improved, and the printing device is convenient to use. And the printing quality is ensured while the replacement convenience is ensured.

This invention provides a degassing mechanism for folding pages in commercial printing presses. The degassing blade of this mechanism is mounted on a rotating wheel in a serrated shape. The degassing blade is a ring-shaped cutter with serrated edges, which leaves a series of air holes on the paper as it passes through. The rotating wheel is located in front of the paper feed roller in the conveying direction, placing it diagonally above the roller. This allows the degassing blade to apply positive pressure to the paper as the roller moves forward, preventing slippage and ensuring paper quality. The degassing ring groove ensures the depth to which the degassing blade cuts the paper, guaranteeing that each tooth leaves an air hole at the fold line. This achieves ideal degassing during folding, preventing air pockets at the fold line and significantly improving the flatness of the folded paper, thus enhancing the overall quality of the final paper processing.

The utility model relates to the technical field of rotary press equipment, in particular to an automatic inking letterpress printing mechanism of a trademark rotary press, which is characterized in that an inking unit is fixedly arranged on a rack, an inking roller is rotatably arranged on the inking unit through a bearing, an ink supply roller is arranged on the side of the inking unit and is rotatably arranged on the rack through a bearing, and the inking roller is arranged on the rack through a bearing. The two ink guide ducts are vertically arranged and fixed to the wall of the side, facing the ink supply roller, of the ink coating unit in a penetrating mode, the main ink transfer roller is movably arranged in one ink guide duct, the two supporting shafts are fixedly arranged on the rack in a front-back symmetry mode, and the two main supporting arms form a set and are rotationally arranged on shafts at the two ends of the main ink transfer roller through bearings correspondingly. The other end of the main supporting arm is rotationally arranged on the supporting shaft through a bearing; according to the ink supply device, the double-ink-transfer-roller structure is arranged, the two sets of ink transfer rollers are alternately pushed through the gear-adjustable driving structure to make contact with the ink supply roller, continuous ink supply to the inking structure is achieved, and therefore the problem of ink shortage is effectively solved.

The embodiment of the invention provides a scraping strip grinding device which is used for grinding a scraping strip, the scraping strip grinding device comprises a fixing support, a driving assembly, a sliding assembly, a grinding piece, a scraping strip fixing assembly and a pressure adjusting assembly, and the pressure adjusting assembly and the driving assembly are both installed on the same side of the fixing support in the height direction of the scraping strip grinding device. The sliding assembly is movably connected with the driving assembly, the grinding piece is detachably connected with the sliding assembly, the scraping strip fixing assembly is installed on the pressure adjusting assembly, and the scraping strip fixing assembly and the grinding piece are oppositely arranged in the width direction of the scraping strip grinding device at intervals. The scraping strip fixing assembly can fix a scraping strip, the pressure adjusting assembly can control the fit clearance between the scraping strip fixing assembly and the grinding piece so that the grinding piece can abut against the scraping strip, and the driving assembly can drive the sliding assembly and drive the grinding piece to move in the length direction of the scraping strip grinding device.

The utility model discloses a developing box which comprises a box body used for storing a developing agent and provided with a first end and a second end which are oppositely arranged in a first direction, and a third end and a fourth end which are oppositely arranged in a second direction; the developing roller is positioned at the third end; the driving part is positioned at the first end; the left forced pushing piece is movably arranged on the box body and receives the forced pushing force to move in the second direction relative to the box body; the electrode assembly is used for receiving external voltage and is electrically connected with the first conductive part; the electrode assembly comprises an electric receiving piece, the electric receiving piece is located at the second end and comprises a receiving part and a left guided part, the receiving part makes contact with the first conductive part and is driven by the first conductive part to enable the electric receiving piece to slide relative to the box body, the left guided part makes contact with the second abutting part, and the second abutting part blocks the electric receiving piece from moving. According to the scheme, the movable electric receiving piece cannot transmit the acting force of an external part to the box body, so that the developing box is stably mounted on the drum assembly.

This utility model relates to the field of screen printing machine technology, specifically a novel screen printing machine, including an operating table with a printing structure. The printing structure includes a fixed frame, which is fixedly connected to the operating table. A screen printing plate is mounted on the inner side of the fixed frame. An mounting arm is slidably connected to the side of the operating table, and a movable screw is threadedly connected to the inner side of the mounting arm. The movable screw is rotatably connected to the operating table. A pressure arm is provided on the mounting arm, and a first guide roller and a second guide roller are rotatably connected to the bottom side of the pressure arm. A contact belt is sleeved between the first guide roller and the second guide roller. By replacing the traditional scraper with a contact belt that can rotate around the first and second guide rollers, the contact belt can continuously rotate during the process of moving and squeezing the ink on the screen printing plate, thereby greatly reducing frictional wear on the surface of the screen printing plate and extending its service life.

The utility model discloses an embossing heating device with an auxiliary cooling function, which belongs to the technical field of leather embossing and comprises an embossing component. The embossing assembly comprises a sixth pipeline, a hollow embossing roller, conical heads, inner barrels, connecting blocks and second supporting frames, connecting shafts at the two ends of the hollow embossing roller are rotationally connected with the second supporting frames through bearings, the connecting blocks are arranged on the inner wall of the hollow embossing roller and provided with the inner barrels, and the conical heads are fixedly connected to the two ends of the inner barrels. Connecting shafts at the two ends of the hollow embossing roller are rotationally connected with the sixth pipeline through sealing bearings and sealing rings; the sixth pipeline is connected with a heat pump system; the heat pump system is further connected with a cooling assembly which is located on the left side of the second supporting frame. The second supporting frame is further connected with cleaning assemblies, the cleaning assembly on the upper side is located on the left side of the hollow embossing roller at the upper end, and the embossing assembly at the lower end is located on the right side of the hollow embossing roller at the lower end. By means of the mode, waste heat generated after printing can be recycled, energy consumption is reduced, and more energy conservation and environmental protection are achieved.

The utility model discloses a double platform silk screen printing machine, include: base, first platform, second platform, printing device and alarm device, and base is provided with a plurality of guide grooves along left and right direction, first platform is slidably arranged in the guide groove along left and right direction, and first platform is used for placing product, first platform is slidably arranged in the guide groove along left and right direction, and second platform is used for placing product, printing device is set up on the base, and first platform and second platform alternately approach or away from the below of printing device, and printing device is used for printing the product placed on first platform or the product placed on second platform, alarm device includes counter and siren, and the counter electricity is connected siren, and the counter and siren all are set up on the base, and the counter is used for detecting and recording the printing frequency of printing device, and when the printing frequency recorded by the counter reaches predetermined frequency, the siren sends alarm.

The utility model discloses a photocuring 3D printer, which relates to the technical field of 3D printing and comprises a base. The resin tank is arranged on the base, and the resin tank is used for accommodating a resin material; the lifting assembly is arranged on the base; the printing platform is arranged above the resin tank, and the lifting assembly is in driving connection with the printing platform and drives the printing platform to ascend and descend; and the leveling assembly comprises at least one gasket, and the gasket is arranged between the output end of the lifting assembly and the printing platform so that the printing platform can be kept in a horizontal state. According to the technical scheme provided by the utility model, the printing platform can be leveled conveniently, and the printing quality is improved.

The application provides a precise control device for the ink usage of a medicinal paper box, which comprises an ink barrel, a fixed block is installed at the lower end of the ink barrel, a control mechanism is arranged in the fixed block, a filter mechanism is arranged at the lower side of the fixed block, a cavity is formed in the fixed block, and an elastic diaphragm is fixedly installed at one side of the ink conveying cavity in the cavity. Through the use of the control mechanism, the operator only needs to rotate the knob, and the threaded rod rotates accordingly, driving the moving block and the sealing plug to move precisely in the cavity. The sealing plug pushes the elastic diaphragm to deform, skillfully changing the space size of the ink conveying cavity, and then finely adjusting the ink usage. Combined with the pointer and the scale line, the required ink amount can be intuitively and accurately set, effectively avoiding the problems of printing blur and uneven color caused by excessive or insufficient ink, and greatly improving the quality and stability of the medicinal paper box printing.

The present application relates to packaging box printing processing technical field, specifically disclose a kind of packaging box local printing setting device, including base, rotationally arranged on base rotating platform and fixed on rotating platform upper guide cam;Rotating platform is circumferentially provided with a plurality of follow-up positioning clamping fixtures, and is sequentially provided with feeding, visual inspection, cleaning, printing, setting and discharging station along the direction of rotation;Jig includes radially sliding push rod, its inner end roller is in contact with the profile of guide cam, and outer end is connected with a pair of mirror image symmetrical clamping end plate through inner side strip, and the back surface of clamping end plate is provided with inclined block, and rotating platform is provided with guide that cooperates with inclined block;Roller is opened when clamping end plate is moved along the small diameter arc segment of guide cam, and it is automatically closed and clamped packaging box when clamping end plate is moved along the large diameter arc segment;The present application is automatically clamped and released by mechanical linkage, integrates visual inspection and cleaning function, with the advantages of compact structure, reliable positioning, high printing precision.

The utility model belongs to the technical field of compound machines, and discloses an acrylic double-sided tape printable coating compound machine, which comprises a rack, and a rolling assembly, a printing assembly and a winding roller which are sequentially arranged on the rack, the printing assembly comprises two installation frames fixed to the rack and a fixing frame fixedly installed between the two installation frames, and two printing heads arranged oppositely are arranged in the fixing frame in a sliding mode. And sliding rods penetrate through one sides of the two fixing plates in a sliding mode, rotating bases are fixedly installed at the bottom ends of the two sliding rods, springs are fixedly connected between the two rotating bases and the two fixing plates correspondingly, and a tensioning shaft is rotationally connected between the two rotating bases. According to the utility model, the rotating seat drives the tensioning shaft to always downwards abut against the double-sided tape through the elastic force of the spring, so that the double-sided tape is kept in a tightened state between the two second guide rollers, and the printing quality is further ensured.

This utility model discloses an adjustable positioning fixture and screen printing equipment, comprising: a base plate for detachable connection to a base; an adjusting block slidably connected to the base plate and detachably connected to the base plate via a first fastener; and a positioning block slidably connected to the side of the adjusting block opposite to the base plate and detachably connected to the adjusting block via a second fastener. The adjusting block is detachably connected to the base plate via the first fastener, and the positioning block is detachably connected to the adjusting block via the second fastener, thereby flexibly adjusting the position of the positioning block. The first and second fasteners ensure positioning accuracy, improve stability, and prevent the positioning block from shaking during operation. The base plate, adjusting block, and positioning block can all be independently disassembled and replaced, simplifying the operation process.