Block green tile printing machine

Abstract

The present invention provides a block raw ceramic sheet printer, including a platform, a manipulator, a loading and unloading assembly, and a printing assembly. The outer end of the manipulator is connected to an adsorption assembly, and the adsorption assembly includes a plurality of adsorption heads; the loading and unloading assembly is arranged on one side of the manipulator; the printing assembly includes a printing net and a brush head; the manipulator can drive the raw ceramic sheet to move to the bottom of the printing net, and rotate the raw ceramic sheet so that the four sides of the raw ceramic sheet are respectively attached to the bottom wall of the printing net. In the block raw ceramic sheet printer provided by the present invention, the loading and unloading assembly conveys the raw ceramic sheet to be printed to the position of the manipulator, and the manipulator drives the adsorption assembly and the raw ceramic sheet to move to the bottom of the printing net, and metal powder is coated on the printing net through the brush head above, so that the metal powder is printed on the four sides of the raw ceramic sheet, and then the manipulator or the adsorption head is used to rotate the raw ceramic sheet, so that the four sides of the raw ceramic sheet are respectively printed, which effectively improves the printing efficiency of the raw ceramic sheet.

Description

Technical Field

[0001] The invention belongs to the technical field of green ceramic sheet printing, and more specifically, relates to a block green ceramic sheet printing machine. Background Art

[0002] The manufacturing process of circuit boards often involves printing on the end faces of raw ceramic sheets. The metallized patterns on the end faces of raw ceramic sheets are relatively small in size, and are usually adsorbed by a robot suction cup before printing on multiple end faces. In the above operation, the robot suction cup needs to be manually loaded. Since the consistency of manual operation is difficult to ensure, there is a deviation between the pattern printed on the end face of the raw ceramic sheet and the design pattern, which affects the printing quality of the raw ceramic sheet. In addition, the above operation is inefficient and it is difficult to meet the needs of mass production of products. Summary of the invention

[0003] The object of the present invention is to provide a block green ceramic sheet printing machine, which can ensure the printing quality of green ceramic sheets, realize batch printing of green ceramic sheets, and improve the printing efficiency of green ceramic sheets.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a block green ceramic sheet printing machine, comprising:

[0005] platform;

[0006] A manipulator is arranged on the platform, and an outer end of the manipulator is connected to an adsorption assembly, which includes a plurality of adsorption heads for adsorbing the green ceramic sheet and driving the green ceramic sheet to rotate in a circumferential direction;

[0007] The loading and unloading assembly is arranged on one side of the robot and is used to supply the raw ceramic sheets to be printed to the robot or receive the printed raw ceramic sheets unloaded by the robot;

[0008] A printing assembly, comprising a printing screen arranged on the other side of the manipulator and a brush head arranged above the printing screen and capable of horizontal movement;

[0009] Among them, the robot arm can drive the raw porcelain sheet to move to the bottom of the printing screen and rotate the raw porcelain sheet so that the four end faces of the raw porcelain sheet are respectively attached to the bottom wall of the printing screen. The brush head is used to apply metal powder to the printing screen so that the metal powder is printed on one end face of the raw porcelain sheet.

[0010] In a possible implementation, the loading and unloading assembly includes:

[0011] The slide rail is arranged on the platform in a horizontal direction, and a slide seat is slidably connected to the top of the slide rail;

[0012] A plurality of trays are arranged above the slide, and the trays are used to support the raw ceramic pieces;

[0013] Two sets of lifting columns are symmetrically distributed on both sides of the slide rail, used to lift the tray up or down;

[0014] Two groups of telescopic members are symmetrically distributed on both sides of the slide rail, each group of telescopic members includes at least two telescopic members arranged at intervals along the direction of the slide rail, and the telescopic members have an extended end arranged toward the slide rail;

[0015] The lifting column can lift the tray upward to detach from the slide, and insert the extended end horizontally between the two trays at the bottom; the lifting column can also lower the tray at the bottom and make it fall onto the slide.

[0016] In some embodiments, the tray is provided with a receiving cavity with an opening facing upward, and a limiting frame for limiting the position of the green ceramic sheet is detachably connected to the receiving cavity, and the limiting frame has a plurality of cavities penetrating from top to bottom for accommodating and limiting the position of the green ceramic sheet;

[0017] A plurality of support columns are arranged below the support tray, and positioning grooves corresponding to the support columns are arranged on the top surface of the support tray. The support columns are used to form a gap between the upper and lower support trays for the extended end of the telescopic member to extend into.

[0018] In some embodiments, the slide is provided with two supporting positions for placing a supporting tray, and the slide can slide from the feed end of the slide rail to the discharge end of the slide rail to supply the raw ceramic sheets to be printed to the robot position, and transfer the raw ceramic sheets unloaded by the robot to the discharge end of the slide rail.

[0019] In a possible implementation, the adsorption component includes:

[0020] An extension frame is connected to the robot arm and extends outward;

[0021] A mounting bar seat is connected to the outer end of the extension frame and is arranged perpendicular to the extension direction of the extension frame, and a mounting cavity is arranged in the mounting bar seat;

[0022] The rotary drive component includes a rack arranged in the installation cavity, a plurality of driven gears respectively meshed with the racks, and a driving gear meshed with the rack to drive the rack to move. The gear is provided with an axially penetrating shaft tube, and one end of the shaft tube close to the extension frame is used to be connected to the vacuum component, and the adsorption heads are connected to the outer ends of the shaft tubes one by one.

[0023] In some embodiments, a first matching sleeve and a second matching sleeve are respectively disposed in the installation cavity and are located at two axial ends of the driven gear. The first matching sleeve and the second matching sleeve are respectively fixedly connected to the installation bar seat. The inner end of the shaft tube is rotatably connected to the first matching sleeve, and the outer end of the shaft tube is rotatably connected to the second matching sleeve.

[0024] An elastic pressing piece is sleeved on the outer periphery of the outer end of the shaft tube, one end of the elastic pressing piece is connected to the mounting bar seat, and the other end is connected to the outer end of the shaft tube, and is used for elastically pushing the shaft tube outward along the axial direction of the shaft tube.

[0025] In some embodiments, a torsion convex ring is provided on the outer periphery of the inner end of the shaft tube, and an elastic torsion member is provided on the outer periphery of the shaft tube, which is located between the first mating sleeve and the torsion convex ring and is used to reduce the tooth gap between the driven gear and the rack, and one end of the elastic torsion member is connected to the first mating sleeve, and the other end is connected to the torsion convex ring.

[0026] In one possible implementation, a frame is provided on the periphery of the printing screen, a mounting frame for mounting the printing screen is provided above the platform, a supporting cavity for supporting the frame is provided in the middle of the mounting frame, a through hole is provided on the bottom wall of the supporting cavity corresponding to the upper and lower parts of the printing screen so that the end surface of the raw porcelain sheet can be attached to the bottom surface of the printing screen, an elastic pushing member pressed against one side wall of the frame and a tightening member pressed against the other side wall of the frame are provided on the mounting frame, and the tightening member and the elastic pushing member are respectively arranged on opposite sides of the frame.

[0027] In some embodiments, two arc-shaped seats are provided on the platform and are respectively supported on both sides of the bottom of the installation frame. Both sides of the installation frame have arc-shaped edges that slide with the inner edges of the arc-shaped seats. An extension rod extending toward one side of the manipulator is connected to the bottom surface of the frame. A circumferential pushing part is connected to the arc-shaped seat for pushing the side of the extension rod to make the installation frame rotate circumferentially.

[0028] In some embodiments, two horizontally extending first slides and a second slide slidably connected between the two first slides are provided above the platform. The second slide is arranged perpendicular to the first slide. The mounting frame is slidably connected between the two second slides. The extension rod extends to the outside of the second slide perpendicular to the direction of the second slide. The outer end of the extension rod is arranged to protrude upward. The circumferential pushing member is connected to the side of the second slide close to the manipulator for pushing the outer end side wall of the extension rod.

[0029] Compared with the prior art, the scheme shown in the embodiment of the present application is a block raw ceramic sheet printing machine provided in the embodiment of the present application. The loading and unloading components transport the raw ceramic sheets to be printed to the position of the robot. The robot drives the adsorption component and the raw ceramic sheets to move to the bottom of the printing screen. The metal powder is coated on the printing screen through the brush head above, so that the metal powder is printed on the four side end surfaces of the raw ceramic sheets. The raw ceramic sheets are then rotated by the robot or the adsorption head, so that the four side end surfaces of the raw ceramic sheets are printed respectively, thereby effectively improving the printing efficiency of the raw ceramic sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 A schematic diagram of the structure of a block green ceramic sheet printing machine provided by an embodiment of the present invention;

[0032] Figure 2 For the embodiment of the present invention Figure 1 The partially enlarged structural diagram of middle Ⅰ;

[0033] Figure 3 For the embodiment of the present invention Figure 1 A schematic diagram of the top view of the printed component;

[0034] Figure 4 For the embodiment of the present invention Figure 1 Structural diagram of the loading and unloading components;

[0035] Figure 5 For the embodiment of the present invention Figure 4 Schematic diagram of the main structure;

[0036] Figure 6 For the embodiment of the present invention Figure 4 A schematic diagram of a top view structure;

[0037] Figure 7 For the embodiment of the present invention Figure 4 Schematic diagram of the structure of the middle support tray, the limit frame and the raw ceramic piece;

[0038] Figure 8 For the embodiment of the present invention Figure 4 Schematic diagram of the structure of the middle support tray and the raw porcelain piece;

[0039] Fig. 9 For the embodiment of the present invention Figure 1 Schematic diagram of the structure of the adsorption component;

[0040] Fig.10 For the embodiment of the present invention Fig. 9 Schematic diagram of the partially enlarged structure of II.

[0041] Among them, the reference numerals in the figure are:

[0042] 1. Platform; 2. Manipulator; 3. Loading and unloading assembly; 31. Slide rail; 32. Slide seat; 321. Limit block; 33. Lifting column; 34. Telescopic member; 35. Limit frame; 351. Cavity; 36. Support tray; 361. Accommodating cavity; 362. Support column; 363. Positioning groove; 364. Ventilation hole; 37. Gap; 38. Guide seat; 39. Lifting drive member; 4. Printing assembly; 41. Brush head; 42. Printing net; 43. Frame; 431. Extension rod; 44. Elastic push member; 45. Tightening member; 46. Circumferential push member; 47. Mounting frame; 48. Arc seat; 49. Down-pressing rod; 5. Adsorption assembly; 51. Extension frame; 52. Mounting bar seat; 521. Mounting cavity; 53. Rotating drive member; 531. Rack; 532. Driven gear; 533. Driving gear; 54. Shaft tube; 541. First matching sleeve; 542. Second matching sleeve; 56. Adsorption head; 57. Elastic torsion member; 571. Torsion convex ring; 58. Elastic pressure member; 581. Pressure convex ring; 59. Positioning seat; 61. First slideway; 62. Second slideway; 63. First locking member; 64. Second locking member; 8. Raw porcelain sheet. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0045] Please also read Figures 1 to 10, the block raw ceramic sheet printer provided by the present invention is now described. The block raw ceramic sheet printer includes a platform 1, a manipulator 2, a loading and unloading assembly 3 and a printing assembly 4. The manipulator 2 is arranged on the platform 1, and the outer end of the manipulator 2 is connected to an adsorption assembly 5, and the adsorption assembly 5 includes a plurality of adsorption heads 56 for adsorbing raw ceramic sheets 8 and driving the raw ceramic sheets 8 to rotate in a circumferential direction; the loading and unloading assembly 3 is arranged on one side of the manipulator 2, and is used to supply the raw ceramic sheets 8 to be printed to the manipulator 2 or receive the printed raw ceramic sheets 8 unloaded by the manipulator 2; the printing assembly 4 includes a printing net 42 arranged on the other side of the manipulator 2 and a brush head 41 arranged above the printing net 42 and capable of horizontal movement;

[0046] Among them, the robot arm 2 can drive the raw porcelain sheet 8 to move to the bottom of the printing screen 42, and rotate the raw porcelain sheet 8 so that the four end surfaces of the raw porcelain sheet 8 are respectively attached to the bottom wall of the printing screen 42, and the brush head 41 is used to coat metal powder onto the printing screen 42 so that the metal powder is printed on one of the end surfaces of the raw porcelain sheet 8.

[0047] Compared with the prior art, the block raw ceramic sheet printing machine provided in this embodiment has a loading and unloading assembly 3 that conveys the raw ceramic sheet 8 to be printed to the position of the manipulator 2. The manipulator 2 drives the adsorption assembly 5 and the raw ceramic sheet 8 to move to the bottom of the printing screen 42, and metal powder is coated on the printing screen 42 through the upper brush head 41, so that the metal powder is printed on the four sides of the raw ceramic sheet 8. Then, the manipulator 2 or the adsorption head 56 is used to drive the raw ceramic sheet 8 to rotate, so that the four sides of the raw ceramic sheet 8 are printed respectively, thereby improving the printing quality of the raw ceramic sheet 8 and improving the processing efficiency of the raw ceramic sheet 8.

[0048] In some possible implementations, the above-mentioned characteristic loading and unloading assembly 3 adopts the following method: Figures 4 to 8 See the structure shown. Figures 4 to 8 The loading and unloading assembly 3 includes a slide rail 31, a plurality of bearing trays 36, two groups of lifting columns 33 and two groups of telescopic parts 34. The slide rail 31 is arranged on the platform 1 in the horizontal direction, and a slide seat 32 is slidably connected above the slide rail 31; a plurality of bearing trays 36 are arranged above the slide seat 32, and the bearing trays 36 are used to support the raw ceramic pieces 8; two groups of lifting columns 33 are symmetrically distributed on both sides of the slide rail 31, and are used to lift the bearing trays 36 to move up or down; two groups of telescopic parts 34 are symmetrically distributed on both sides of the slide rail 31, and each group of telescopic parts 34 includes at least two telescopic parts 34 arranged at intervals along the direction of the slide rail 31, and the telescopic parts 34 have an extended end arranged toward the slide rail 31;

[0049] Among them, the lifting column 33 can lift the supporting tray 36 and move it up to detach from the slide 32, and make the extended end horizontally inserted between the two supporting trays 36 of the lowest layer; the lifting column 33 can also lower the supporting tray 36 of the lowest layer and make the supporting tray 36 of the lowest layer fall onto the slide 32.

[0050] In this embodiment, multiple layers of trays 36 can be pre-placed on the slide 32. When feeding is needed, the lifting column 33 moves up to move the trays 36 up and away from the slide 32, and the telescopic member 34 is horizontally corresponding to the two lowest trays 36. The extended end extends outward and is supported under the upper multiple trays 36. Only the tray 36 on the bottom layer is left and falls onto the slide 32 with the lifting column 33. The slide 32 is used to drive the tray 36 and the raw ceramic sheet 8 on the bottom layer to move to the position corresponding to the upper and lower positions of the manipulator 2, thereby realizing the sequential loading of a single tray 36, ensuring the accuracy of the loading position, helping to improve the printing quality of the raw ceramic sheet 8, reducing the labor intensity of operators, and avoiding the impact of manual operation on the surrounding environment.

[0051] In this embodiment, a transparent shell can be set above the platform 1, so that the feeding and printing of the raw ceramic sheets 8 can be carried out in a closed space to avoid the influence of the external environment. A plurality of stacked supporting trays 36 can be installed on the slide 32 at one time, and then the supporting trays 36 can be transported one by one to the position of the manipulator 2 through the cooperation of the telescopic member 34 and the lifting column 33, thereby improving the accuracy of the conveying position, facilitating the adsorption component 5 to accurately absorb the corresponding raw ceramic sheets 8 and carry out subsequent printing, which helps to improve the printing accuracy and ensure the printing quality of the product.

[0052] On the basis of the above structure, the multiple groups of limit blocks 321 arranged on the top surface of the slide 32 can limit the front side edge and the rear side edge of the tray 36 respectively. When the slide 32 drives the tray 36 and the green ceramic sheet 8 to move horizontally along the slide rail 31, the tray 36 is limited by the limit blocks 321 to avoid positional displacement between the tray 36 and the slide 32, so as to accurately transport the green ceramic sheet 8 to the position accurately corresponding to the upper and lower positions of the manipulator 2, and ensure the accuracy of the adsorption of the adsorption component 5. Specifically, the slide 32 is driven by the cooperation of the motor and the lead screw assembly.

[0053] The two groups of lifting columns 33 include four lifting columns 33 distributed in a rectangular shape. The four lifting columns 33 correspond to the four corners of the supporting tray 36 to ensure effective support of the supporting tray 36. The four lifting columns 33 are synchronously driven by a lifting drive member 39, which is convenient for improving the synchronization of the movements and also convenient for saving space and cost.

[0054] Specifically, a lifting drive member 39 is connected below the platform 1, and the lower end of the lifting drive member 39 is the driving end, which is connected to the middle of the support plate. The lower ends of the four lifting columns 33 are respectively connected to the top surface of the support plate. The support plate can drive the four lifting columns 33 to rise and fall synchronously under the drive of the driving end, thereby achieving the effect of driving the supporting tray 36 to rise and fall.

[0055] In some embodiments, the above-mentioned characteristic support tray 36 is adopted as follows Figures 7 and 8 See the structure shown. Figures 7 and 8The tray 36 is provided with a receiving cavity 361 opening upward, and a limiting frame 35 for limiting the position of the green ceramic sheet 8 is detachably connected to the receiving cavity 361. The limiting frame 35 has a plurality of cavities 351 penetrating from top to bottom to accommodate and limit the green ceramic sheet 8;

[0056] A plurality of support columns 362 are provided below the support tray 36, and positioning grooves 363 corresponding to the support columns 362 are provided on the top surface of the support tray 36. The support columns 362 are used to form a gap 37 between the upper and lower support trays 36 for the extended end of the telescopic member 34 to extend into.

[0057] In this embodiment, the accommodating cavity 361 on the tray 36 is used to place the raw ceramic sheets 8. A plurality of raw ceramic sheets 8 arranged in a matrix can be placed in the accommodating cavity 361. Each time, the robot 2 can absorb the same row of raw ceramic sheets 8 and perform synchronous printing on the same side end surface of the raw ceramic sheets 8, which helps to improve work efficiency.

[0058] When placing the raw ceramic sheet 8 in the accommodating cavity 361, in order to facilitate placement and improve placement efficiency, a limit frame 35 is also provided in the accommodating cavity 361. The outer edge of the limit frame 35 contacts the inner wall of the accommodating cavity 361. The limit frame 35 has a plurality of cavities 351 for accommodating raw sheets, so that the raw ceramic sheets 8 can enter the cavities 351 one by one, maintaining a fixed distance between adjacent raw ceramic sheets 8, so as to facilitate the subsequent adsorption component 5 to perform corresponding absorption.

[0059] The limiting frame 35 is detachably connected to the supporting tray 36. After the printing of the green ceramic sheet 8 is completed, the limiting frame 35 needs to be removed by another robot 2 to prevent the printed green ceramic sheet 8 from being scratched against the limiting frame 35 and affecting the printed metal layer.

[0060] In this embodiment, in order to facilitate the extension of the telescopic member 34 between two adjacent layers of the supporting trays 36, a support column 362 is provided below the supporting tray 36, and a positioning groove 363 that can accommodate the lower end of the support column 362 of the upper supporting tray 36 is provided on the top surface of the supporting tray 36. Through the cooperation of the support column 362 and the positioning groove 363, the effective separation between the two adjacent layers of the supporting trays 36 is achieved, and the relative positions of the two are limited, so that the horizontal projections of the two are effectively overlapped, thereby ensuring the stability and consistency of the subsequent feeding position.

[0061] The gap 37 between the two layers of the supporting trays 36 allows the extended end of the telescopic member 34 to be easily inserted, so that the supporting trays 36 except the bottommost supporting tray 36 are reliably supported by the telescopic member 34, and only the supporting tray 36 of the bottommost layer follows the downward movement of the lifting column 33 and falls onto the slide seat 32, thereby realizing the conveyance of individual supporting trays 36 one by one.

[0062] In addition, in order to ensure that the tray 36 has a good positioning effect in the direction perpendicular to the direction of the slide rail 31, a guide seat 38 is provided on both sides of the slide rail 31. The guide seat 38 is located between the two extended ends of the same group of telescopic members 34, and can limit and guide the edges of the tray 36 on both sides, so that each tray 36 can fall relatively accurately onto the slide seat 32 below. The guide seat 38 has a guide surface on the side wall adjacent to the tray 36, and the guide surface extends in an arc shape toward the side close to the slide rail 31, and limits and guides the edges of the tray 36 on both sides, so as to ensure the accuracy of subsequent feeding.

[0063] Furthermore, a plurality of ventilation holes 364 are provided on the supporting tray 36, and the ventilation holes 364 can prevent the raw ceramic sheet 8 from being displaced due to the influence of gas pressure when being placed, so as to facilitate the accurate and rapid placement of the raw ceramic sheet 8 into the cavity 351 of the limiting frame 35, thereby improving the placement efficiency of the raw ceramic sheet 8.

[0064] In some embodiments, the above-mentioned characteristic slide 32 adopts Figure 4 and Figure 6 See the structure shown. Figure 4 and Figure 6 The slide 32 is provided with two supporting positions for placing the supporting tray 36. The slide 32 can slide from the feeding end of the slide rail 31 to the discharging end of the slide rail 31 to supply the raw ceramic sheet 8 to be printed to the position of the robot 2, and transfer the raw ceramic sheet 8 unloaded by the robot 2 to the discharging end of the slide rail 31.

[0065] In this embodiment, in the extension direction of the slide rail 31, a support position is formed between two adjacent groups of limit blocks 321. When the slide seat 32 moves, it can drive the support trays 36 on the two support positions to move synchronously, so as to achieve synchronous loading and unloading. Each group of limit blocks 321 includes two limit blocks 321 respectively used to contact the same side edge of the support tray 36 to limit the support tray 36.

[0066] The two limit blocks 321 are located at the same side edge of the supporting seat, which can block the corresponding edge of the supporting tray 36 to prevent the supporting tray 36 from shifting relative to the slide seat 32 due to inertia or external influence during the movement of the slide seat 32, thereby ensuring the stability of the relative position of the two and facilitating the subsequent precise correspondence between the raw ceramic sheet 8 and the adsorption component 5.

[0067] In some possible implementations, the feature adsorption component 5 is used as follows: Fig. 9 and Fig.10 See the structure shown. Fig. 9 and Fig.10The adsorption assembly 5 includes an extension frame 51, a mounting bar seat 52 and a rotating drive member 53. The extension frame 51 is connected to the manipulator 2 and extends outward; the mounting bar seat 52 is connected to the outer end of the extension frame 51 and is arranged perpendicular to the extension direction of the extension frame 51, and a mounting cavity 521 is arranged in the mounting bar seat 52; the rotating drive member 53 includes a rack 531 arranged in the mounting cavity 521, a plurality of driven gears 532 respectively meshed with the rack 531, and a driving gear 533 meshed with the rack 531 to drive the rack 531 to move, and a shaft tube 54 penetrating the circumference is provided on the driven gear 532, and the inner end of the shaft tube 54 is connected to the vacuum member, and the adsorption head 56 is connected to the outer end of the shaft tube 54 one by one.

[0068] In this embodiment, the driving gear 533 drives the rack 531 to move, so as to drive the multiple driven gears 532 to rotate synchronously, so that the multiple adsorption heads 56 drive the adsorbed raw ceramic sheets 8 to rotate. Under the action of the vacuum component, the adsorption channel is in a negative pressure state, so that the adsorption head 56 can effectively adsorb the raw ceramic sheets 8. The above structure can realize the synchronous rotation of multiple raw ceramic sheets 8, which helps to improve the printing efficiency of the raw ceramic sheets 8 and ensure the synchronization and consistency of the printing process of the raw ceramic sheets 8.

[0069] The extension frame 51 is connected to the outer end of the robot 2, and the outer end of the extension frame 51 is connected to the mounting bar seat 52. The mounting cavity 521 in the mounting bar seat 52 is used to accommodate the rotating component. Driven by the driving gear 533, the rack 531 can translate along its extension direction, thereby driving the driven gear 532 to rotate. The adsorption head 56 is connected to the driven gear 532, and rotates at a certain angle under the drive of the driven gear 532 to facilitate subsequent printing operations.

[0070] When the raw ceramic sheets 8 are being printed, the robot 2 drives the raw ceramic sheets 8 to move to the printing screen 42 position, and prints the same side end faces of multiple raw ceramic sheets 8. Then, the robot 2 drives the mounting bar seat 52 and multiple raw ceramic sheets 8 to rotate 180° as a whole, and prints the opposite side end faces of the raw ceramic sheets 8. Then, multiple driven gears 532 are used to drive the multiple raw ceramic sheets 8 to rotate 90 degrees in the same direction around their respective axes, so that the third end face of each raw ceramic sheet 8 is in contact with the printing screen 42 at the same time. Then, the robot 2 drives the raw ceramic sheets 8 to rotate 180° as a whole to complete the printing of the last end face of the raw ceramic sheets 8. The above position change method is simple and easy to operate, which helps to improve the printing efficiency of the raw ceramic sheets 8.

[0071] For ease of description, the end of the shaft tube 54 close to the manipulator 2 is defined as the inner end of the shaft tube 54, and the end of the shaft tube 54 away from the manipulator 2 is defined as the outer end of the shaft tube 54. The inner end of the shaft tube 54 is connected to an external vacuum pump or vacuum tank, so that the shaft tube 54 is in a negative pressure adsorption state, ensuring that the adsorption head 56 can stably adsorb the green ceramic sheet 8, thereby achieving the effect of driving the green ceramic sheet 8 to rotate.

[0072] On this basis, an L-shaped positioning seat 59 is also provided above the platform 1. The positioning seat 59 is arranged above the printing component 4. After the adsorption head 56 is adsorbed onto the raw porcelain sheet 8, the adjacent two end faces of the raw porcelain sheet 8 are brought into contact with the two right-angled end faces of the positioning seat 59. The positioning seat 59 is used to contact the adjacent two end faces of the raw porcelain sheet 8 to achieve precise definition of the position of the raw porcelain sheet 8, thereby ensuring the accuracy of the subsequent printing position.

[0073] In some embodiments, the above-mentioned characteristic mounting cavity 521 is adopted as follows Fig. 9 and Fig.10 See the structure shown. Fig. 9 and Fig.10 The installation cavity 521 is provided with a first matching sleeve 541 and a second matching sleeve 542 respectively located at the axial ends of the driven gear 532. The first matching sleeve 541 and the second matching sleeve 542 are respectively fixedly connected to the installation bar seat 52. The inner end of the shaft tube 54 is rotatably connected to the first matching sleeve 541, and the outer end of the shaft tube 54 is rotatably connected to the second matching sleeve 542.

[0074] An elastic pressing piece 58 is sleeved on the outer periphery of the outer end of the shaft tube 54 . One end of the elastic pressing piece 58 is connected to the mounting bar seat 52 , and the other end is connected to the outer end of the shaft tube 54 , and is used to elastically push the shaft tube 54 outward along the axial direction of the shaft tube 54 .

[0075] In this embodiment, the first matching sleeve 541 and the second matching sleeve 542 are respectively connected to the mounting bar seat 52 by interference fit, and the relative positions of the two are fixed. The inner end of the shaft tube 54 is inserted into the first matching sleeve 541 and rotates with the first matching sleeve 541, and the outer end of the shaft tube 54 is inserted into the second matching sleeve 542 and rotates with the second matching sleeve 542. The driven gear 532 is ensured to drive the adsorption head 56 and the green ceramic sheet 8 to rotate, and has a good limit fit.

[0076] Specifically, in order to improve wear resistance, the driving gear 533, the rack 531, the driven gear 532, the first matching sleeve 541 and the second matching sleeve 542 are respectively made of copper and have good self-lubricating properties. The mounting bar seat 52 is made of aluminum and has a lightweight feature, which is convenient for reducing the overall weight of the components.

[0077] Specifically, in order to improve wear resistance, the driving gear 533, the rack 531, the driven gear 532, the first matching sleeve 541 and the second matching sleeve 542 are respectively made of copper and have good self-lubricating properties. The mounting bar seat 52 is made of aluminum and has a lightweight feature, which is convenient for reducing the overall weight of the components.

[0078] In this embodiment, a pressing convex ring 581 is provided on the outer periphery of the outer end of the shaft tube 54, and the outer end of the elastic pressing member 58 can be pressed against the end face of the pressing convex ring 581, thereby realizing an elastic pushing effect on the shaft tube 54 toward the outside, so that the adsorption head 56 has a tendency to push outward relative to the mounting bar seat 52, which facilitates the adsorption head 56 to effectively adsorb the raw ceramic sheet 8 and avoids the problem of loose adsorption caused by the retraction of the adsorption head 56.

[0079] In some embodiments, the above-mentioned characteristic shaft tube 54 is adopted as Fig. 9 and Fig.10 See the structure shown. Fig. 9 and Fig.10 A torsion convex ring 571 is provided on the outer periphery of the inner end of the shaft tube 54, and an elastic torsion member 57 is provided on the outer periphery of the shaft tube 54, which is located between the first matching sleeve 541 and the torsion convex ring 571 and is used to reduce the tooth gap between the driven gear 532 and the rack 531. One end of the elastic torsion member 57 is connected to the first matching sleeve 541, and the other end is connected to the torsion convex ring 571.

[0080] In this embodiment, the elastic torsion member 57 can twist the shaft tube 54 and the driven gear 532, so that the tooth shape of the driven gear 532 and the tooth shape of the rack 531 are in a reliable pressing state, which is convenient for reducing the tooth gap between the rack 531 and the driven gear 532, and ensuring that the driven gear 532 can drive the raw ceramic sheet 8 to rotate at a precise angle, thereby ensuring the effective fitting of the outer end face of the raw ceramic sheet 8 and the printing screen 42, and ensuring the printing quality of the end face of the raw ceramic sheet 8.

[0081] Specifically, the two ends of the elastic torsion member 57 are respectively connected to the end faces of the first matching sleeve 541 and the torsion convex ring 571 , so that the shaft tube 54 has an axial torsion force to reduce the tooth clearance between the rack 531 and the driven gear 532 .

[0082] In some possible implementations, the above-mentioned characteristic printing screen 42 is used as follows Figures 1 to 3 See the structure shown. Figures 1 to 3 A frame 43 is provided on the periphery of the printing net 42, and a mounting frame 47 for mounting the printing net 42 is provided above the platform 1. A supporting cavity for supporting the frame 43 is provided in the middle of the mounting frame 47. A through hole corresponding to the upper and lower parts of the printing net 42 is provided on the bottom wall of the supporting cavity so that the end surface of the raw porcelain sheet 8 can be attached to the bottom surface of the printing net 42. An elastic pushing member 44 pressed against one side wall of the frame 43 and a tightening member 45 pressed against the other side wall of the frame 43 are provided on the mounting frame 47. The tightening member 45 and the elastic pushing member 44 are respectively arranged on opposite sides of the frame 43.

[0083] In this embodiment, a bracket is provided above the platform 1, and a mounting frame 47 is connected to the upper part of the bracket for mounting a printing screen 42 with a frame 43. The supporting cavity of the mounting frame 47 is supported below the frame 43, and the through hole corresponds to the printing screen 42 up and down, so that the raw porcelain sheet 8 can be moved to the end face to fit the bottom of the printing screen 42 under the drive of the manipulator 2, and the metal powder is coated on the surface of the printing screen 42 through the horizontal movement of the upper brush head 41, thereby achieving the effect of printing a metal pattern on the end face of the raw porcelain sheet 8.

[0084] Specifically, a tensioning member 45 and an elastic pushing member 44 are respectively provided on both sides of the installation frame 47, and the horizontal position of the printing screen 42 is adjusted by adjusting the ejection length of the tensioning member 45. The adjacent two side edges of the installation frame 47 are respectively provided with tensioning members 45, and the other two adjacent two side edges are provided with elastic pushing members 44. Through the cooperation of the above components, the position adjustment of the printing screen 42 in the horizontal and vertical directions is realized, which is convenient for accurately inputting the motion coordinates of the manipulator 2 in the system, and ensuring the accuracy of the moving position of the green ceramic sheet 8.

[0085] In some embodiments, see Figures 1 to 3 The platform 1 is provided with two arc seats 48 respectively supported on both sides of the bottom of the mounting frame 47. Both sides of the mounting frame 47 have arc edges that slide with the inner edges of the arc seats 48. An extension rod 431 extending toward one side of the manipulator 2 is connected to the bottom surface of the frame 43. A circumferential pushing member 46 is connected to the arc seat 48 for pushing the side of the extension rod 431 to make the mounting frame 47 rotate circumferentially.

[0086] In this embodiment, on the basis of adjusting the longitudinal and transverse positions of the printing net 42 by means of the tensioning member 45 and the elastic pushing member 44, the circumferential position of the printing net 42 is adjusted by pushing the extension rod 431 by means of the circumferential pushing member 46. When the circumferential pushing member 46 pushes the side wall of the extension rod 431, the arcuate edges on both sides of the mounting frame 47 can slide with the inner edge of the arcuate seat 48, so that the printing net 42 rotates at a small angle in the circumferential direction, thereby ensuring that the printed pattern on the printing net 42 effectively corresponds to the end surface position of the green ceramic sheet 8, and improving the printing accuracy.

[0087] On the basis of the above structure, a downward pressure rod 49 extending toward the middle of the frame 43 is also provided on the top surface of the mounting plate, and the bottom surface of the downward pressure rod 49 is used to abut against the top surface of the frame 43, thereby achieving the effect of limiting the upper and lower positions of the limit frame 43, ensuring the stable position of the printing screen 42, and improving the quality accuracy of subsequent printing.

[0088] In some embodiments, see Figures 1 to 3Two horizontally extending first slides 61 and a second slide 62 slidably connected between the two first slides 61 are also provided above the platform 1. The second slide 62 is arranged perpendicular to the first slide 61. The mounting frame 47 is slidably connected between the two second slides 62. The extension rod 431 extends perpendicular to the second slide 62 to the outside of the second slide 62. The outer end of the extension rod 431 is arranged to protrude upward. The circumferential pushing member 46 is connected to the side of the second slide 62 close to the manipulator 2, and is used to push the outer end side wall of the extension rod 431.

[0089] In this embodiment, on the basis of using the tightening member 45 and the elastic pushing member 44 to fine-tune the vertical and horizontal positions of the printing screen 42, a first slide 61 and a second slide 62 are set. When the mounting frame 47 moves along the second slide 62, horizontal movement along the slide rail 31 can be achieved. When the second slide 62 slides along the first slide 61, the distance between the printing screen 42 and the manipulator 2 can be adjusted. The above structure can realize larger-scale adjustment in the vertical and horizontal directions, ensuring that after the manipulator 2 drives the raw ceramic sheet 8 to move, the raw ceramic sheet 8 can effectively correspond to the metal pattern on the printing screen 42.

[0090] Specifically, the first slide 61 is provided with a first locking member 63 that abuts against the top surface of the first slide 61, and the first locking member 63 can lock the position of the second slide 62 on the first slide 61. The second slide 62 is provided with a second locking member 64 that abuts against the top surface of the arc seat 48, and the second locking member 64 can lock the relative position of the installation frame 47 and the second slide 62, thereby ensuring the accuracy of the installation position of the printing screen 42 and helping to improve the printing accuracy.

[0091] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A block green tile printing machine, characterized in that: include: platform; A manipulator is arranged on the platform, and an outer end of the manipulator is connected to an adsorption assembly, wherein the adsorption assembly includes a plurality of adsorption heads for adsorbing the green ceramic sheet and driving the green ceramic sheet to rotate in a circumferential direction; A loading and unloading assembly is arranged on one side of the manipulator, and is used to supply the raw ceramic sheets to be printed to the manipulator or receive the printed raw ceramic sheets unloaded by the manipulator; A printing assembly, comprising a printing screen arranged on the other side of the manipulator and a brush head arranged above the printing screen and capable of horizontal movement; The manipulator is capable of driving the green ceramic sheet to move to the bottom of the printing screen and rotating the green ceramic sheet so that the four end surfaces of the green ceramic sheet are respectively attached to the bottom wall of the printing screen, and the brush head is used to apply metal powder to the printing screen so that the metal powder is printed on one end surface of the green ceramic sheet; The adsorption assembly comprises: An extension frame is connected to the robot arm and extends outward; A mounting bar seat connected to the outer end of the extension frame and arranged perpendicular to the extension direction of the extension frame, wherein a mounting cavity is arranged in the mounting bar seat; The rotary driving member includes a rack arranged in the installation cavity, a plurality of driven gears respectively meshed with the racks, and a driving gear meshed with the racks to drive the racks to move, wherein the gears are provided with an axially penetrating shaft tube, and one end of the shaft tube close to the extension frame is used to be connected to the vacuum member, and the adsorption heads are connected to the outer ends of the shaft tubes one by one; The installation cavity is provided with a first matching sleeve and a second matching sleeve respectively located at two axial ends of the gear, the first matching sleeve and the second matching sleeve are respectively fixedly connected to the installation bar seat, the inner end of the shaft tube is rotatably connected to the first matching sleeve, and the outer end of the shaft tube is rotatably connected to the second matching sleeve; An elastic pressing piece is sleeved on the outer periphery of the outer end of the shaft tube, one end of the elastic pressing piece is connected to the mounting bar seat, and the other end is connected to the outer end of the shaft tube, and is used for elastically pushing the shaft tube outward along the axial direction of the shaft tube.

2. The block green tile printing machine according to claim 1, characterized in that: The loading and unloading assembly comprises: A slide rail is horizontally arranged on the platform, and a slide seat is slidably connected to the top of the slide rail; A plurality of trays are arranged above the slide, and the trays are used to support the green ceramic pieces; Two sets of lifting columns are symmetrically distributed on both sides of the slide rail, and are used to lift the support tray to move up or down; Two groups of telescopic members are symmetrically distributed on both sides of the slide rail, each group of telescopic members includes at least two telescopic members arranged at intervals along the direction of the slide rail, and the telescopic members have an extended end arranged toward the slide rail; The lifting column can lift the tray upward to be separated from the slide, and the extended end can be horizontally inserted between the two trays at the bottom. The lifting column can also lower the tray at the bottom and make the tray at the bottom fall onto the slide.

3. The block green tile printing machine according to claim 2, characterized in that: The tray is provided with a receiving cavity opening upward, a limiting frame for limiting the position of the green ceramic sheet is detachably connected to the receiving cavity, and the limiting frame has a plurality of cavities penetrating from top to bottom for accommodating and limiting the position of the green ceramic sheet; A plurality of support columns are arranged below the support tray, and positioning grooves corresponding to the support columns are arranged on the top surface of the support tray. The support columns are used to form a gap between the upper and lower support trays for the extended end of the telescopic member to extend into.

4. The block green tile printing machine according to claim 3, characterized in that: The slide is provided with two supporting positions for placing the supporting tray. The slide can slide from the feed end of the slide rail to the discharge end of the slide rail to supply the raw ceramic sheets to be printed to the position of the robot, and transfer the raw ceramic sheets unloaded by the robot to the discharge end of the slide rail.

5. The block green tile printing machine according to claim 1, characterized in that: The inner end outer periphery of the shaft tube is provided with a torsion convex ring, and the outer periphery of the shaft tube is provided with an elastic torsion member located between the first matching sleeve and the torsion convex ring and used to reduce the tooth gap between the driven gear and the rack, one end of the elastic torsion member is connected to the first matching sleeve, and the other end is connected to the torsion convex ring.

6. The block green tile printing machine according to any one of claims 1 to 5, characterized in that: A frame is provided on the periphery of the printing screen, a mounting frame for mounting the printing screen is provided above the platform, a supporting cavity for supporting the frame is provided in the middle of the mounting frame, a through hole is provided on the bottom wall of the supporting cavity corresponding to the upper and lower parts of the printing screen so that the end surface of the raw porcelain sheet can be attached to the bottom surface of the printing screen, an elastic pushing member pressed against one side wall of the frame and a tightening member pressed against the other side wall of the frame are provided on the mounting frame, and the tightening member and the elastic pushing member are respectively arranged on opposite sides of the frame.

7. The block green tile printing machine according to claim 6, characterized in that: The platform is provided with two arc-shaped seats respectively supported on both sides of the lower side of the installation frame, and both sides of the installation frame have arc-shaped edges that slide with the inner edges of the arc-shaped seats. An extension rod extending toward one side of the manipulator is connected to the bottom surface of the frame, and a circumferential pushing member is connected to the arc-shaped seat for pushing the side of the extension rod to make the installation frame rotate circumferentially.

8. The block green tile printing machine according to claim 7, characterized in that: Two horizontally extending first slides and a second slide slidably connected between the two first slides are also provided above the platform. The second slide is arranged perpendicular to the first slide. The mounting frame is slidably connected between the two second slides. The extension rod extends to the outside of the second slide perpendicular to the direction of the second slide. The outer end of the extension rod is arranged to protrude upward. The circumferential pushing member is connected to the side of the second slide close to the manipulator for pushing the outer end side wall of the extension rod.

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