CN110450404B

CN110450404B - 3D printer that photo holder frame LOGO printed

Info

Publication number: CN110450404B
Application number: CN201910568411.3A
Authority: CN
Inventors: 马林旭; 王利强; 李成营; 王启祥; 张世辉
Original assignee: Tianjin Julai Technology Co ltd; Tianjin Sino German University of Applied Sciences
Current assignee: Tianjin Julai Technology Co ltd; Tianjin Sino German University of Applied Sciences
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2023-11-28
Anticipated expiration: 2039-06-27
Also published as: CN110450404A

Abstract

The invention relates to a 3D printer for photo frame LOGO printing, which considers the problem that the printed LOGO possibly has unstable connection with a photo frame insert when in LOGO printing, and creatively designs that holes are machined on the insert first and then 3D printing is carried out on the insert, so that the printed LOGO is firmly adsorbed on the photo frame insert through the holes; in order to enhance the connection strength of LOGO, the holes are arranged to be of an inverted T-shaped structure, and a 3D printing head which can be matched with the shapes of the holes is arranged, so that 3D printing can be well carried out at corners in the holes, and the influence on the 3D printing effect due to omission or holes is avoided; the 3D printing head is arranged in a mode that the extrusion wire material spraying direction can be changed, and the direction is changed to be arranged inside the printing head, so that the 3D printing is performed by adapting to the fact that the printing head can go deep into holes, the application range of the 3D printing head is further improved, meanwhile, a novel multidirectional valve structure is adopted at the nozzle of the printing head, the spraying angle of the extrusion wire material can be changed at will, and the printing range of 3D printing is improved.

Description

3D printer that photo holder frame LOGO printed

Technical Field

The invention relates to advanced manufacturing technology, in particular to a 3D printer for photo frame LOGO printing.

Background

The 3D printing technology is a technology which is developed rapidly in recent years, and belongs to an additive technology, the 3D printing is performed on a photo frame panel to print the LOGO, in order to continue the additive technology on a formed workpiece, but such 3D printing has the problems that the material which is printed later cannot be well combined with the formed workpiece, so that the bonding strength is insufficient, and the printed material is easy to fall off, as in patent document 1, the 3D printing device for preheating a printing area through fiber laser is provided, the printing area is preheated through fiber laser before 3D printing, so that the extruded silk material is bonded with the preheating area to be close to liquid melting bonding, and the bonding strength is improved, however, if the fiber laser acts on the formed workpiece, other areas which do not need to perform the LOGO printing are possibly melted due to the higher laser temperature, and the action surface is wider, although the bonding strength can be improved, and the attractiveness is possibly influenced; for another example, patent document 2 provides a 3D printing mechanism, in which the angle of the printing head is adjustable due to the arrangement of three telescopic rods and universal hinges, but when the printing mechanism is in a narrow printing space, the printing mechanism may have the problem that the space is small and flexible rotation cannot be performed, and flexible printing cannot be performed on a closed hole well.

Patent document 1: CN206999631U;

patent document 2: CN107214954a.

In summary, in the prior art, a 3D printer specially adapted for photo frame LOGO printing and capable of well solving the problem of combining printed LOGO with photo frame panels is not provided.

Disclosure of Invention

In order to overcome the defects of a 3D printer in the prior art, the invention provides a technical scheme, and the 3D printer for photo frame LOGO printing comprises a bracket, a sliding seat A, a sliding seat B, a sliding seat C, a spray head and a punching heating rod, wherein the bracket spans the upper part of a guide device, the sliding seat A and the sliding seat B are arranged on a cross beam of the bracket in a sliding manner, the sliding seat C is arranged on the sliding seat A in a sliding manner, the punching heating rod is arranged in the sliding seat B, the spray head is arranged in the sliding seat C, only can slide up and down along the sliding seat C and can not rotate relatively, the punching heating rod is arranged in the sliding seat B, the spray head is internally and spirally connected with a nozzle adjusting valve assembly, and is positioned in a nozzle of a detachable spray head of the spray head and used for changing the spraying angle of fluid sprayed from the nozzle;

preferably, the shower nozzle still includes shower nozzle main part, go up the closure plate, guide roller, heating module and valve mount pad, go up the closure plate setting in shower nozzle main part upper end, be provided with the hole that only supplies feeding tubular product to get into in the upper closure plate, guide roller sets up in last closure plate upper end for guide feeding tubular product, and be provided with two, be located the both ends of feeding tubular product, detachable shower nozzle threaded connection has formed the feed bin jointly in the lower extreme of shower nozzle main part by last closure plate, shower nozzle main part and detachable shower nozzle, heating module sets up and is used for heating the feeding tubular product that gets into in the feed bin, form the 3D printing material of molten state, the valve mount pad sets up in heating module lower part, inside is provided with the internal thread that is used for installing nozzle governing valve subassembly, nozzle governing valve subassembly threaded connection is in the valve mount pad.

Preferably, the nozzle regulating valve assembly comprises a vertical rod, a connecting rod A, a connecting rod B, a sliding sleeve and a flexible shielding piece, wherein external threads matched with threads in a valve mounting seat are formed on the upper portion of the vertical rod, the connecting rod A is hinged to the vertical rod, the sliding sleeve is fixedly arranged on the vertical rod, one end of the connecting rod B is hinged to the middle portion of the connecting rod A, the other end of the connecting rod B is hinged to the sliding sleeve, the flexible shielding piece covers the connecting rod A, the flexible shielding piece is of a circular ring structure, the diameter of an inner ring is equal to the diameter of the vertical rod, the diameter of an outer ring is equal to the inner diameter of a detachable nozzle, sealing is formed between the outer ring of the flexible shielding piece and the detachable nozzle, the connecting rod A is four and is uniformly arranged along the circumferential direction of the vertical rod, and the connecting rod B is of a telescopic rod structure and can be independently stretched.

Preferably, the punching heating rod upper portion slides and is provided with the screw thread cover, and the heating rod that punches is connected through flexible actuating lever with the screw thread cover, and the screw thread cover is the outside and is provided with the screw thread, the inside sliding sleeve structure that is provided with the sliding pin, and the heating rod cover that punches is located in the screw thread cover, and be provided with sliding pin complex spout structure, when needs stretch out when punching the photo holder frame inserted sheet, the flexible actuating lever that sets up between heating rod and the screw thread cover stretches out, and the drive heating rod that punches stretches out, and the screw thread cover rotates to set up in sliding seat B.

Preferably, the lower part of the punching heating rod is provided with a telescopic block, the telescopic block is arranged on the punching heating rod in a telescopic way, when the punching heating rod is processed by the inverted T-shaped hole, a driving gear meshed with the external thread of the thread bush is arranged in the sliding seat B, the driving gear rotates to drive the thread bush to rotate, so that the punching heating rod can be rotated, when the inverted T-shaped hole is processed, the driving gear rotates to drive the thread bush to rotate, so as to drive the punching heating rod to rotate, and the inverted T-shaped hole is processed on the photo frame insert.

Preferably, the finished tray is provided with a front positioning block and two rear angle positioning blocks, and the photo frame insert is positioned on the finished tray through the front positioning block and the rear angle positioning blocks.

Preferably, the inverted "T" shaped aperture comprises a cylindrical aperture body and corners of a cylindrical structure having a larger diameter than the aperture body.

Preferably, the flexible shielding piece is formed by assembling a plurality of metal sheets, two metal sheets are arranged between every two connecting rods A and hinged through a hinge shaft, after the connecting rods B shrink, the metal sheets can be folded and retracted, and high-temperature-resistant sealing rings are arranged between the hinge shaft and the metal sheets as well as between the metal sheets and the detachable spray heads and between the metal sheets and the vertical rods so as to improve the sealing performance.

A method of 3D printing using a photo frame LOGO printed 3D printer, comprising the steps of:

1. inverted T-shaped holes are formed on the photo frame insert:

after a finished pallet is conveyed to a 3D printing station through a guide device, the guide device stops running, a sliding seat B slides to a position corresponding to a position to be punched, a punching heating rod heats, after the finished pallet is heated to a certain temperature, the finished pallet is driven by a telescopic driving rod to slide downwards until a hole main body with a certain depth is punched, then a telescopic block is controlled to extend out, and a driving gear is driven to rotate, so that the punching heating rod is driven to rotate, corners are machined, an inverted T-shaped hole is machined, the driving gear is stopped, the telescopic block is retracted into the punching heating rod, the punching heating rod is driven by the telescopic driving rod to ascend, and the next inverted T-shaped hole is machined until all inverted T-shaped holes are machined;

2. additive processing in a reverse T-shaped hole:

controlling the feeding pipe to feed, and heating the feeding pipe by the heating module to form fluid materials in a molten state; the sliding seat A and the sliding seat C jointly act to enable the spray head to be positioned above the inverted T-shaped hole, and the spray head is driven to descend until the lower surface of the spray head is flush with the upper surface of the photo frame insert; controlling the scaling of the corresponding connecting rod B, so as to adjust the angle of the fluid material sprayed from the bin, performing additive processing on the inverted T-shaped hole until the fluid material fills the inverted T-shaped hole, resetting the connecting rod B, and stopping the spraying of the fluid material; moving the sliding seat A and the sliding seat C to enable the spray head to be positioned above the other inverted T-shaped hole, and performing the same processing until all the inverted T-shaped holes finish the material adding processing, resetting the connecting rod B, and stopping the spraying of the fluid material;

3. photo frame panel upper surface LOGO additive processing:

through sliding seat A, sliding seat C coaction for the shower nozzle is located the initial position that LOGO printed, and all connecting rods B retract, releases the closure to removable shower nozzle, and fluid material spouts from the shower nozzle and prints 3D, and until accomplishing the LOGO and print, all connecting rods B reset, stop fluid material's blowout, so far, accomplish the LOGO printing of photo holder frame panel.

The beneficial effects of the invention are as follows:

1. according to the 3D printer, when LOGO printing is carried out, the problem that the printed LOGO is possibly connected with a photo frame panel in a weak manner is considered, and the innovative design is that holes are firstly processed on the panel and then 3D printing is carried out on the panel, so that the printed LOGO is firmly adsorbed on the photo frame panel through the holes;

2. in order to enhance the connection strength of LOGO, the holes are arranged to be of an inverted T-shaped structure, and a 3D printing head which can be matched with the shapes of the holes is arranged, so that 3D printing can be well carried out at corners in the holes, and the influence on the 3D printing effect due to omission or holes is avoided;

3. the 3D printing head is arranged in a mode that the spraying direction of the extruded wire can be changed, and the direction is changed and arranged in the printing head, so that the 3D printing head is adapted to be capable of penetrating into holes to perform 3D printing, the application range of the 3D printing head is further improved, meanwhile, a novel multidirectional valve structure is adopted at the nozzle of the printing head, the spraying angle of the extruded wire can be changed at will, and the printing range of 3D printing is improved;

4. the invention also specially designs a LOGO printing step, which is divided into a hole forming step and a LOGO 3D printing step, and different operations are carried out on different 3D printing heads in different steps, so that the LOGO printing quality is improved.

Drawings

FIG. 1 is a perspective view of the whole appearance of the intelligent manufacturing technique and the practical training system for application production of the invention;

FIG. 2 is a top view of the intelligent manufacturing technique and application production training system of the present invention;

FIG. 3 is a perspective view of an automated stereoscopic library of the present invention;

FIG. 4 is a perspective view of the raw AGV of the present invention;

FIG. 5 is a perspective view of a finished AGV of the present invention;

FIG. 6 is a perspective view of a loading manipulator module of the present invention;

FIG. 7 is a perspective view of a blanking manipulator module of the present invention;

FIG. 8 is a perspective view of an automated conveyor line module of the present invention;

FIG. 9 is a perspective view of a positioning read-write device according to the present invention;

FIG. 10 is a perspective view of a seven-axis robot and numerical control machining center module of the present invention;

FIG. 11 is a perspective view of a marking unit according to the present invention;

FIG. 12 is a perspective view of a 3D printing unit according to the present invention;

FIG. 13 is a perspective view of an assembled detection unit of the present invention;

FIG. 14 is a perspective view of a packaging unit according to the present invention;

FIG. 15 is a perspective view of a labeling unit of the present invention;

fig. 16 is a schematic structural view of the 3D printing unit after the finished pallet arrives at the 3D printing station;

FIG. 17 is a schematic diagram of a 3D printhead structure;

FIG. 18 is a view A-A of FIG. 16;

FIG. 19 is a top view of the nozzle regulator valve assembly;

FIG. 20 is a schematic illustration of a 3D printhead printing an inverted "T" hole at a corner;

FIG. 21 is a top view of another embodiment nozzle regulator valve assembly.

In the figure: 1-automated stereoscopic warehouse, 2-loading manipulator, 3-blanking manipulator, 4-automated conveying line, 5-seven-axis robot, 6-numerical control machining center, 7-marking unit, 8-3D printing unit, 9-assembly detection unit, 10-packaging unit, 11-labeling unit, 12-power distribution cabinet, 13-MES system billboard, 14-short focus projector, 15-process billboard, 16-safety fence, 17-stock warehouse, 18-raw material warehouse, 19-finished product warehouse, 20-three-axis manipulator, 21-raw material transfer frame, 22-finished product peripheral table, 23-raw material AGV trolley, 24-finished product AGV trolley, 25-stereoscopic warehouse PLC control board, 26-stereoscopic warehouse cantilever box, 27-raw material AGV trolley body, 28-bracket, 29-electronic tag, 30-raw material tray, 31-finished product trolley body, 32-finished product tray, 33-servo motor, 34-loading manipulator synchronous belt, 35-loading cylinder synchronous belt, 36-electric motor cabinet, 37-blanking manipulator synchronous belt, 38-75-electronic control system, 37-finished product AGV trolley, 37-human robot synchronous belt, 38-17-finished product AGV trolley, 48, 14-three-dimensional robot synchronous belt, 48-35-three-dimensional robot conveying line, 43-finished product guide rail, 48-35-dimensional robot positioning device, 48-finished product guide rail, 43-35-dimensional robot, 48-conveying line, 43-finished product guide device, 17-finished product AGV trolley, 43-finished product rail, 43-finished product AGV trolley body, 48-finished product, 17-finished product, 35-electronic tag, 35-finished product AGV, 35-and 29-electronic tag, 35-finished product, 35-and 9-to be, 52-carrying grippers, 53-marking aluminum alloy table bodies, 54-laser marking machine, 55-grinding head, 56-laser marking clamp, 57-temporary placing frame, 58-ultraviolet marking machine, 59-printing aluminum section table body, 60-3D printer, 61-spray head, 62-assembling aluminum section table body, 63-six-axis assembling robot, 64-assembling grippers, 65-detecting platform, 66-industrial camera, 67-photo assembling table, 68-push rod cylinder, 69-photo frame assembling clamp, 70-packaging aluminum section table body, 71-four-axis robot, 72-packaging clamp table 2, 73-packaging gripper, 74-swing cylinder, 75-flip cover chuck gripper, 76-labeling aluminum section table body 77-automatic labeler, 78-labeling gripper, 79-guide, 80-photo frame insert, 81-bracket, 82-slide A, 83-slide B, 84-perforated heating rod, 85-inverted "T" shaped aperture, 86-telescoping block, 87-front positioning block, 88-rear positioning block, 89-nozzle body, 90-trachea, 91-feed tube, 92-guide roller, 93-upper closure plate, 94-removable nozzle, 95-bin, 96-heating block, 97-valve mount, 98-nozzle adjustment valve assembly, 99-vertical rod, 100-slide, 101-link A, 102-link B, 103-flexible shutter, 104-aperture body, 105-corner, 106-slide C, 107-metal sheet, 108-hinge shaft.

Description of the embodiments

The following is a further description of the specific embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1 and 2, the intelligent manufacturing technology and the practical training system for the applied production comprise an automatic three-dimensional warehouse (1), a feeding manipulator (2), a discharging manipulator (3), an automatic conveying line (4), a seven-axis robot (5), a numerical control machining center (6), a marking unit (7), a 3D printing unit (8), an assembly detection unit (9), a packaging unit (10), a labeling unit (11), a power distribution cabinet (12), an MES (13), a short-focus projector (14), a process (15), a safety fence (16), a stock preparation warehouse (17) and the like. After the equipment is started, an administrator or customer places an order through the MES system. After receiving order information, the feeding manipulator (2) takes a raw material tray (30) from the automatic three-dimensional warehouse (1) and places the raw material tray at a raw material conveying starting position of the automatic conveying line (4). The blanking manipulator (3) grabs the finished product tray (32) and places on finished product AGV dolly body, runs finished product tray (32) to 3D through the AGV dolly and prints the initiation site, preferably also can place the packing box on finished product tray (32). The raw material tray (30) is conveyed to a machining station through an automatic conveying line (4), and a seven-axis robot (5) grabs workpieces in the raw material tray (30) and respectively finishes machining, marking and polishing procedures to a numerical control machining center (6) and a marking unit (7); the 3D printer completes the 3D printing process of logo of the photo frame insert in the finished tray (32), and the 3D printer and the raw tray (30) after marking are simultaneously conveyed to the assembly detection unit (9) for assembly by the automatic conveying line (4), after the assembly is completed, quality detection is carried out, and the qualified workpieces are detected to complete the boxing operation by the packaging unit (10). After the packaged finished product is transferred to a labeling unit (11) for labeling through an automatic conveying line (4), the finished product is transferred to an automatic three-dimensional warehouse (1) or a display position through a blanking manipulator (3).

As shown in fig. 3, 4 and 5, the automatic three-dimensional warehouse consists of a raw material warehouse (18), a finished product warehouse (19), a three-axis manipulator (20), a raw material turnover frame (21), a finished product turnover table (22), a raw material AGV trolley (23), a finished product AGV trolley (24), a three-dimensional warehouse PLC (programmable logic controller) console (25) and a three-dimensional warehouse cantilever box (26). The three-axis mechanical arm (20) respectively takes a raw material tray (30) and a finished product tray (32) from a raw material warehouse (18) and a finished product warehouse (19) to a raw material turnover frame (21) and a finished product turnover frame (22), and then respectively transfers the raw material tray, the finished product tray and the finished product turnover frame to the guide devices of an automatic conveying line (4) and a 3D printing unit by the feeding mechanical arm (2) and the finished product AGV trolley (24).

The raw material AGV trolley (23) and the finished product AGV trolley (24) can take materials from the stock preparation warehouse (17) and supplement the stock. The automatic three-dimensional warehouse receives control signals from the MES, stores and outputs raw materials or finished products through the feeding manipulator (2), the discharging manipulator (3) and the three-axis manipulator (20), and sends storage and output positions to the MES. Thus, the product can be customized according to the customer to go out and put in storage, and finally automatic storage is realized.

As shown in fig. 8, 9 and fig. 9, the automatic conveyor line (4) comprises a three-phase asynchronous motor (39), a positioning read-write device (40) and a combined conveyor device (41), wherein the combined conveyor device (41), a guiding device (42), a conveyor line PLC control console (43), a conveyor line electric control cabinet (44), a positioning air cylinder device (45), an RFID reader (46) and an inductance switch (47) are connected with each station. The workpiece tray is transported on the conveyor belt of each conveying device, the transportation control is driven and controlled by an encoder of a three-phase asynchronous motor (39), the induction switch (47) senses the position, and the accurate positioning is realized by a positioning air cylinder device (45). And RFID reader-writer (46) that each setpoint set, can read and write the electronic tags of raw material tray (30), finished product tray (32), real-time recording MES system work piece process information.

As shown in fig. 10, the seven-axis robot (5) is composed of a six-axis transfer robot (49), a robot table (50), and a seven-axis servo motor (51) transfer gripper (52). As the equipment for transferring the raw material workpieces among the automatic conveying line (4), the numerical control machining center (6) and the marking unit (7), the automatic conveying line can be used for grabbing, transferring and accurately placing the workpieces among 3 stations of machining, polishing and marking.

As shown in fig. 10, the numerical control machining center (6) is provided with a machining clamp (48) therein, and the degree of freedom of the workpiece can be limited by a limiting and tightening mode, so that the machining operation can be effectively completed.

As shown in fig. 11, the laser marking machine (54) marks photo frame workpieces placed on the laser marking fixture (56), the ultraviolet marking machine (58) marks photo workpieces on the conveyor belt, and after two different kinds of marking operation are completed, the workpieces are uniformly placed on the raw material tray (30) and are conveyed to an assembly station along with the conveyor belt.

As shown in fig. 1 and 12, the 3D printer (60) performs 3D printing with three different colors on the photo frame panels on the finished product tray (32) at the upper part of the automatic conveying line (4), and the photo frame panels are transferred to an assembly station after printing.

As shown in fig. 13, the assembly and detection unit (9) is composed of a six-axis assembly robot (63), an assembly gripper (64), a detection platform (65), an industrial camera (66), a photo assembly table (67), a push rod cylinder (68) and a photo frame assembly fixture (69), wherein the six-axis assembly robot (63) firstly takes down a packing box on a finished product tray (32) and places the packing box on a packing fixture table (72).

The above marked raw material tray (30) and finished product tray (32) are stopped at an assembling station, the assembling handles (64) respectively grasp photo frame accessories and put on a photo frame assembling clamp (69) to complete assembling, then put on a photo assembling table (67), and a push rod cylinder (68) is used to complete final assembling of the finished products.

The finished workpiece is placed on a detection platform (65), and the industrial camera (66) detects the shape, the size and the color elements of the finished workpiece.

As shown in fig. 1, 2, 13 and 14, the packaging unit (10) is composed of a four-axis robot (71), a packaging gripper (73), a swinging cylinder (74), a flip-cover sucker gripper (75) and a packaging clamp table (72). The packing box cover is opened by the flip sucker gripper (75), a qualified finished workpiece is placed into a packing box by the assembling gripper (64) at the tail end of the six-axis assembling robot (63) of the assembling detection unit (9), and the packing box is placed on a finished tray (32) on the automatic conveying line (4) by the four-axis robot (71).

The labeling unit (11) as shown in fig. 1, 2, 8 and 15 is composed of a labeling aluminum section bar table body (76), an automatic labeling machine (77), a labeling hand grip (78) and a four-axis robot (71). The finished pallet (32) is transported via an automated transport line (4) to a labelling station. The label sticking hand (78) at the tail end of the four-axis robot (71) grabs labels and sticks the labels to the label position of the packaging box.

As shown in fig. 1, 2 and 5, the finished product tray (32) is grabbed by an automated conveying line (4) and then transferred to a finished product turnover table (22) or a finished product AGV trolley (24), wherein the finished product tray can be stored in an automated stereoscopic warehouse (1), and the finished product tray can be directly sent to a display position client by grinding a guiding mark.

As shown in fig. 16-20, a schematic 3D printer structure is specifically illustrated. For convenience of illustration, as shown in fig. 16, a X, Y, Z axis is defined, the transmission direction of the guide 79 is the X axis, the beam direction of the bracket (81) is the Y axis, and the vertical movement direction of the nozzle is the Z axis. As shown in fig. 16, the finished pallet (32) is conveyed to the 3D printing station by the guide device (79), and the guide device (79) stops conveying and 3D printing is performed by the 3D printer (60). The 3D printer (60) comprises a support (81), a sliding seat A (82), a sliding seat B (83), a sliding seat C (106), a spray head (61) and a punching heating rod (84), wherein the support (81) spans over the upper part of the guide device (79), the sliding seat A (82) and the sliding seat B (83) are arranged on a cross beam on the support (81) in a sliding manner, the sliding seat C is arranged on the sliding seat A (82), and a power mechanism for driving the sliding seat A (82), the sliding seat B (83) and the sliding seat C (106) to slide is arranged in the sliding seat A (82), and can be realized in a rack-and-pinion manner, so that the invention is not related to the invention. The punching heating rod (84) is arranged in the sliding seat B (83), the spray head (61) is arranged in the sliding seat C (106), the spray head (61) can only slide up and down along the sliding seat C (106) and cannot rotate relatively, and the punching heating rod (84) is arranged in the sliding seat B (83).

Preferably, the upper portion of the punching heating rod (84) is slidably provided with a threaded sleeve, the punching heating rod (84) is connected with the threaded sleeve through a telescopic driving rod, the threaded sleeve is of a sliding sleeve structure with threads arranged outside and sliding pins arranged inside, the punching heating rod (84) is sleeved in the threaded sleeve and is provided with a sliding groove structure matched with the sliding pins, when the photo frame insert (80) needs to be punched, the telescopic driving rod such as a hydraulic piston arranged between the punching heating rod (84) and the threaded sleeve stretches out, the punching heating rod (84) is driven to stretch out, and the threaded sleeve is rotatably arranged in the sliding seat B (83).

Preferably, the lower part of the punching heating rod (84) is provided with a telescopic block (86), the telescopic block (86) is telescopically arranged on the punching heating rod (84), when the inverted T-shaped hole is required to be processed, the telescopic block stretches out of the punching heating rod (84), a driving gear meshed with the external threads of the threaded sleeve is arranged in the sliding seat B (83), the driving gear rotates to drive the threaded sleeve to rotate, so that the rotation of the punching heating rod (84) can be realized, and when the inverted T-shaped hole is processed, the driving gear rotates to drive the threaded sleeve to rotate, so that the punching heating rod is driven to rotate, and the inverted T-shaped hole (85) is processed.

Preferably, a front positioning block (87) and two rear corner positioning blocks (88) are arranged on the finished product tray (32), and the photo frame insert (80) is positioned on the finished product tray (32) through the front positioning block (87) and the rear corner positioning blocks (88).

Preferably, as shown in fig. 18, the inverted "T" shaped hole (85) includes a cylindrical hole body (104) and corners (105) of a cylindrical structure having a diameter larger than that of the hole body (104), by which the LOGO printed on the photo frame panel (80) can be firmly bonded to the photo frame panel (80), and the outer surface of the photo frame panel (80) can be well ensured, and the bonding strength of the printed LOGO is ensured without affecting the beauty of the photo frame panel (80).

Preferably, the spray head (61) comprises a spray head main body (89), an upper sealing plate (93), a guide roller (92), a heating module (96), a valve mounting seat (97), a spray nozzle adjusting valve assembly (98) and a detachable spray head (94), wherein the upper sealing plate (93) is arranged at the upper end of the spray head main body (89), only a hole for feeding the pipe (91) is formed in the upper sealing plate (93), the guide roller (92) is arranged at the upper end of the upper sealing plate (93) and used for guiding the pipe (91), two guide rollers are arranged at two ends of the pipe (91), the detachable spray head (94) is connected with the lower end of the spray head main body (89) in a threaded manner, a bin (95) is formed by the upper sealing plate (93), the spray head main body (89) and the detachable spray head (94), the heating module (96) is arranged in the bin (95) and used for heating the pipe (91) which enters the bin (95) to form a 3D printing material in a molten state, the valve mounting seat (97) is arranged at the lower part of the heating module (96), the inner part is provided with a spray nozzle adjusting valve assembly (98) which is arranged in the spray nozzle assembly (98) and the spray nozzle assembly (20) which is connected with the spray nozzle (20) in a threaded manner, the process of 3D printing of the fluid material after passing through the nozzle adjusting valve assembly (98) is well shown, the printing material in the corners (105) in the inverted T-shaped holes (85) can be well processed and printed, the phenomenon that the materials in the corners (105) are 'empty' or gaps are avoided, and the strength of LOGO combined with the photo frame insert (80) is further improved.

Preferably, as shown in fig. 17 and 19, the nozzle adjusting valve assembly (98) comprises a vertical rod (99), a connecting rod a (101), a connecting rod B (102), a sliding sleeve (100) and a flexible shielding member (103), wherein external threads matched with threads in a valve mounting seat (97) are arranged on the upper portion of the vertical rod (99), the connecting rod a (101) is hinged to the vertical rod (99), the sliding sleeve (100) is fixedly arranged on the vertical rod (99), one end of the connecting rod B (102) is hinged to the middle of the connecting rod a (101), the other end of the connecting rod B (102) is hinged to the sliding sleeve (100), the flexible shielding member (103) is covered on the connecting rod a (101), the flexible shielding member (103) is of a circular ring structure, the diameter of an inner ring is equal to the diameter of the vertical rod (99), the diameter of an outer ring is equal to the inner diameter of a detachable nozzle (94), the flexible shielding member (103) forms sealing between the outer ring and the detachable nozzle (94), the connecting rod a (101) is arranged into four, the connecting rods are uniformly distributed along the circumferential direction of the vertical rod (99), the connecting rod B (102) is of a telescopic rod structure, such as a hydraulic piston structure, and each connecting rod B (102) can be independently telescopic. When the direction of the sprayed fluid needs to be adjusted, if one connecting rod B (102) is controlled to retract, a gap is formed between one corner position of the flexible shielding piece (103) and the detachable nozzle (94), the fluid in the storage bin (95) is sprayed out of the gap, if the angle of the fluid sprayed out of the detachable nozzle (94) needs to be adjusted, different connecting rods B (102) are controlled to act, so that different fluid spraying angles can be realized, and 3D printing in the corner (105) in the inverted T-shaped hole is completed.

Preferably, in order to precisely adjust the ejection angle of the fluid, the link a (101) may be selected to be six, eight, or more.

Preferably, to better fit the nozzle regulator valve assembly (98), the body structure of the removable head (94) is tapered.

Preferably, after finishing the process of adding material in the inverted T-shaped hole, all the connecting rods B (102) are driven to shrink, the flexible shielding piece (103) is in a shrinking state, the spray head is in an open state, and fluid in the storage bin (95) is sprayed out along the detachable spray head (94) to perform 3D printing of a photo frame insert LOGO.

Preferably, in order to adjust the spraying force and the spraying intensity of the fluid in the bin (95), an air pipe (90) is arranged on the nozzle main body (89), and the air pipe (90) is connected with an air pump.

Preferably, the body of the flexible shield (103) may be made of a resiliently stretchable material, such as a high temperature resistant flexible material, and the surface is coated with a high temperature resistant coating.

Preferably, the flexible shielding member (103) can also be assembled by a plurality of metal sheets, as shown in fig. 21, two metal sheets (107) are arranged between every two connecting rods a (101), the two metal sheets (107) are hinged through a hinge shaft (108), after the connecting rod B (102) is contracted, the metal sheets (107) can be folded and retracted, and further, in order to increase the sealing performance, a high-temperature-resistant sealing ring is arranged between the hinge shaft and the metal sheets, and between the metal sheets and the detachable nozzle and between the metal sheets and the metal sheets are arranged between the metal sheets, so that the sealing performance is improved.

Preferably, the photo frame panel (80) is made of a transparent material which can be fused after heating, such as a PVC plate, the punching heating rod (84) is provided with a heating unit, after heating, the photo frame panel (80) is pressed downwards in a sliding manner to form a hole main body (104), then the telescopic block (86) stretches out, the driving gear rotates to drive the punching heating rod (84) to rotate, finally corners (105) are machined, after machining is finished, the telescopic block (86) contracts, the punching heating rod (84) is lifted, machining of an inverted T-shaped hole (85) is finished, and next hole machining is ready.

Preferably, the method further comprises a LOGO printing step:

1. inverted T-shaped holes are formed on the photo frame insert:

after the finished pallet (32) is conveyed to a 3D printing station through a guide device (79), the guide device (79) stops running, a sliding seat B (83) slides to a position corresponding to a hole to be punched, a punching heating rod (84) heats, after the heating rod is heated to a certain temperature, the punching heating rod is driven by a telescopic driving rod to slide downwards until a hole main body (104) with a certain depth is punched, then a telescopic block (86) is controlled to extend out, and meanwhile, a driving gear is driven to rotate, so that the punching heating rod (84) is driven to rotate, and corners (105) are further processed, so that an inverted T-shaped hole (85) is processed, the driving gear is stopped, and meanwhile, the telescopic block (86) is retracted into the punching heating rod (84), and the telescopic driving rod drives the punching heating rod (84) to ascend to prepare for processing of the next inverted T-shaped hole;

2. additive processing in a reverse T-shaped hole:

because the inverted T-shaped hole is a closed hole, if a common 3D printer is used for material adding process, the fluid-shaped material is difficult to flow into the corners of the inverted T-shaped hole, and the common 3D printer is difficult to rotate to inject the fluid-shaped material into the corners due to the small space of the inverted T-shaped hole. Thus, a special 3D printer for photo frame LOGO printing is required for printing. The feeding pipe (91) is controlled to feed, and the heating module (96) heats the feeding pipe (91) into fluid materials in a molten state. The sliding seat A (82) and the sliding seat C (106) jointly act, so that the spray head (61) is positioned above the inverted T-shaped hole, and the spray head (61) is driven to descend until the lower surface of the spray head (61) is flush with the upper surface of the photo frame insert (80); and controlling the scaling of the corresponding connecting rod B (102) so as to adjust the angle of the fluid material sprayed from the bin (95), and performing additive processing on the inverted T-shaped hole until the fluid material fills the inverted T-shaped hole, resetting the connecting rod B (102), and stopping the spraying of the fluid material. And then the sliding seat A (82) and the sliding seat C (106) are moved, so that the spray head (61) is positioned above the other inverted T-shaped hole, the same machining is performed until all the inverted T-shaped holes finish the additive machining, and the connecting rod B (102) is reset to stop the spraying of the fluid material.

3. Photo frame panel upper surface LOGO additive processing:

through the combined action of the sliding seat A (82) and the sliding seat C (106), the spray head (61) is positioned at the initial position of LOGO printing, all the connecting rods B (102) are retracted, the sealing of the detachable spray head (94) is released, the fluid material is sprayed out of the spray head to perform 3D printing until LOGO printing is completed, all the connecting rods B (102) are reset, the spraying of the fluid material is stopped, and the LOGO printing of the photo frame insert is completed.

While the foregoing description of the embodiments of the present invention has been presented with reference to the drawings, it is not intended to limit the scope of the invention, and on the basis of the technical solutions of the present invention, various modifications or variations can be made by those skilled in the art without the need of inventive effort, and still remain within the scope of the invention.

Claims

1. The utility model provides a 3D printer that photo holder frame LOGO printed, including support (81), sliding seat A (82), sliding seat B (83), sliding seat C (106), shower nozzle (61) and heat bar (84) punch, support (81) span in guider (79) upper portion, sliding seat A (82) and sliding seat B (83) slide and set up on the crossbeam of support (81), sliding seat C (106) slide and set up on sliding seat A (82), and be provided with the gliding power unit of drive in sliding seat A (82), sliding seat B (83) and sliding seat C (106), punch heat bar (84) set up in sliding seat B (83), shower nozzle (61) set up in sliding seat C (106), shower nozzle (61) only can slide from top to bottom along sliding seat C (106), can not take place relative rotation, its characterized in that: the nozzle (61) is internally connected with a nozzle adjusting valve assembly (98) in a threaded manner and is positioned in a nozzle of a detachable nozzle (94) of the nozzle (61) for changing the injection angle of fluid injected from the nozzle; the nozzle regulating valve assembly (98) comprises a vertical rod (99), a connecting rod A (101), a connecting rod B (102), a sliding sleeve (100) and a flexible shielding piece (103), wherein external threads matched with threads in a valve mounting seat (97) are arranged on the upper portion of the vertical rod (99), the connecting rod A (101) is hinged to the vertical rod (99), the sliding sleeve (100) is fixedly arranged on the vertical rod (99), one end of the connecting rod B (102) is hinged to the middle of the connecting rod A (101), the other end of the connecting rod B is hinged to the sliding sleeve (100), the flexible shielding piece (103) covers the connecting rod A (101), the flexible shielding piece (103) is of a circular ring structure, the diameter of an inner ring is equal to the diameter of the vertical rod (99), the diameter of the outer ring is equal to the inner diameter of a detachable nozzle (94), sealing is formed between the outer ring of the flexible shielding piece (103) and the detachable nozzle (94), the connecting rod B (102) is of a telescopic rod structure, and each connecting rod B (102) can be independently telescopic; the upper portion of the punching heating rod (84) is slidably provided with a thread sleeve, the punching heating rod (84) is connected with the thread sleeve through a telescopic driving rod, the thread sleeve is of a sliding sleeve structure with threads and sliding pins arranged inside, the punching heating rod (84) is sleeved in the thread sleeve and is provided with a sliding groove structure matched with the sliding pins, when the photo frame insert (80) needs to be stretched out to punch, the telescopic driving rod arranged between the punching heating rod (84) and the thread sleeve stretches out, the driving punching heating rod (84) stretches out, and the thread sleeve rotates to be arranged in the sliding seat B (83).

2. The 3D printer of claim 1, wherein: the shower nozzle (61) still includes shower nozzle main part (89), go up closure plate (93), guide roll (92), heating module (96) and valve mount pad (97), go up closure plate (93) and set up in shower nozzle main part (89) upper end, only be provided with the hole that supplies feeding tubular product (91) to get into in going up closure plate (93), guide roll (92) set up in last closure plate (93) upper end for guide feeding tubular product (91), and be provided with two, be located the both ends of feeding tubular product (91), removable shower nozzle (94) threaded connection is in the lower extreme of shower nozzle main part (89), by last closure plate (93), shower nozzle main part (89) and removable shower nozzle (94) have formed feed bin (95) jointly, heating module (96) set up in feed bin (95) be used for carrying out the heating to feeding tubular product (91) that gets into in feed bin (95), valve mount pad (97) set up in heating module (96) lower part, inside is provided with the internal thread that is used for installing adjusting valve subassembly (98), nozzle adjusting valve subassembly (98) are connected in threaded connection in feed bin (97).

3. The 3D printer of claim 1, wherein: the lower part of the punching heating rod (84) is provided with a telescopic block (86), the telescopic block (86) is telescopically arranged on the punching heating rod (84), when the inverted T-shaped hole is processed, the telescopic block stretches out of the punching heating rod (84), a driving gear meshed with the external threads of the threaded sleeve is arranged in the sliding seat B (83), the driving gear rotates to drive the threaded sleeve to rotate, so that the rotation of the punching heating rod (84) can be realized, when the inverted T-shaped hole is processed, the driving gear rotates to drive the threaded sleeve to rotate, the punching heating rod is driven to rotate, and the inverted T-shaped hole (85) is processed on the photo frame insert (80).

4. A 3D printer according to claim 3, wherein: a front positioning block (87) and two rear angle positioning blocks (88) are arranged on the finished product tray (32), and the photo frame insert (80) is positioned on the finished product tray (32) through the front positioning block (87) and the rear angle positioning blocks (88).

5. A 3D printer according to claim 3, wherein: the inverted "T" shaped aperture (85) includes a cylindrical aperture body (104) and corners (105) of the cylindrical structure having a diameter greater than the aperture body (104).

6. The 3D printer of claim 1, wherein: the flexible shielding piece (103) is formed by assembling a plurality of metal sheets, two metal sheets (107) are arranged between every two connecting rods A (101), the two metal sheets (107) are hinged through a hinge shaft (108), after the connecting rods B (102) shrink, the metal sheets (107) can be folded and retracted, and high-temperature-resistant sealing rings are arranged between the hinge shaft and the metal sheets as well as between the metal sheets and the detachable nozzle as well as between the metal sheets and the vertical rod, so that the sealing performance is improved.

7. A method of 3D printing using the 3D printer of any one of claims 1-6, comprising the steps of:

1. inverted T-shaped holes are formed on the photo frame insert:

after the finished pallet (32) is conveyed to a 3D printing station through a guide device (79), the guide device (79) stops running, a sliding seat B (83) slides to a position corresponding to a position to be punched, a punching heating rod (84) heats, after the heating rod is heated to a certain temperature, the punching heating rod is driven by a telescopic driving rod to slide downwards until a hole main body (104) with a certain depth is punched, then a telescopic block (86) is controlled to extend, and meanwhile a driving gear is driven to rotate, so that the punching heating rod (84) is driven to rotate, and corners (105) are further processed, so that an inverted T-shaped hole (85) is processed, the driving gear is stopped, and meanwhile, the telescopic block (86) is retracted into the punching heating rod (84), and the telescopic driving rod drives the punching heating rod (84) to ascend to prepare for processing of the next inverted T-shaped hole;

2. additive processing in a reverse T-shaped hole:

controlling the feeding pipe (91) to feed, and heating the feeding pipe (91) into fluid materials in a molten state by a heating module (96); the sliding seat A (82) and the sliding seat C (106) jointly act, so that the spray head (61) is positioned above the inverted T-shaped hole, and the spray head (61) is driven to descend until the lower surface of the spray head (61) is flush with the upper surface of the photo frame insert (80); controlling the scaling of the corresponding connecting rod B (102) so as to adjust the angle of the fluid material sprayed from the bin (95), and performing additive processing on the inverted T-shaped hole until the fluid material fills the inverted T-shaped hole, resetting the connecting rod B (102), and stopping the spraying of the fluid material; moving the sliding seat A (82) and the sliding seat C (106) to enable the spray head (61) to be positioned above the other inverted T-shaped hole, and performing the same processing until all the inverted T-shaped holes finish additive processing, resetting the connecting rod B (102), and stopping the spraying of fluid materials;

3. photo frame panel upper surface LOGO additive processing: