Code spraying device capable of automatically correcting workpiece position

Abstract

The utility model provides a code spraying device capable of automatically correcting the position of a workpiece, which is characterized in that a mounting seat I and a mounting seat II are arranged on a placing platform, a conveying seat is arranged at the top of the mounting seat II, and an automatic workpiece posture correcting mechanism is arranged on the upper surface of the conveying seat and comprises a limiting strip and a rotating strip; the rotating strip is rotationally connected with the upper surface of the conveying base, the rotating strip can automatically reset to be parallel to the limiting strip when no external force drives the rotating strip, a plurality of mounting grooves are formed in the conveying base in a workpiece conveying path, and a plurality of conveying rollers perpendicular to the workpiece conveying direction are arranged in the mounting grooves. A code spraying head which is movably arranged is arranged on the top of the first mounting base and is configured to be capable of moving to the position vertically facing the workpiece conveying path downwards. According to the utility model, the automatic correction of the placing posture of the workpiece in the code spraying process can be realized.

Description

Technical Field

[0001] This utility model belongs to the field of workpiece inkjet coding technology, and in particular relates to an inkjet coding device for automatic workpiece position correction. Background Technology

[0002] A coding device, also known as a marking machine or inkjet printer, is a type of equipment widely used in product packaging and industrial manufacturing. Its main function is to print information such as production date, batch number, expiration date, barcode, QR code, text, and patterns on products, packaging, or labels.

[0003] In the existing field of automated industrial manufacturing, inkjet printers are mostly used in conjunction with conveyor devices for synchronous inkjet printing operations. That is, during the process of conveying workpieces, the inkjet printer performs dynamic inkjet printing on the workpieces.

[0004] However, under the current technology, when the workpiece is conveyed into the coding station by the conveyor device, it cannot be guaranteed that the workpiece is placed in the correct position. When there is a deviation in the workpiece's orientation, the coding image formed on the workpiece surface will be offset. The existing solutions are: one is to use manual alignment to manually place the workpiece in the correct orientation, but the work efficiency is low; the other is to design a workpiece orientation limiting device to realize automatic correction of the workpiece's orientation, but the existing workpiece orientation limiting devices are generally complex in structure and have high manufacturing costs. Utility Model Content

[0005] This invention provides a coding device for automatic workpiece position correction, which solves the technical problem in the prior art where the workpiece's orientation cannot be efficiently corrected when it enters the coding area, resulting in positional shift in the workpiece's coding image.

[0006] To solve the above problems, the technical solution of this utility model is: a coding device for automatic workpiece position correction, comprising:

[0007] A placement platform, wherein a mounting base one and a mounting base two are fixedly provided on the upper surface of the placement platform;

[0008] The top of the second mounting base is provided with a horizontally arranged conveyor seat. The conveyor seat is fixedly connected to the second mounting base by several support rods. The upper surface of the conveyor seat is provided with an automatic workpiece posture correction mechanism.

[0009] The automatic workpiece posture correction mechanism includes a limiting bar and a rotating bar. The limiting bar is fixed to a first side of the upper surface of the conveyor seat along the workpiece conveying direction. The rotating bar is rotatably connected to a second side of the upper surface of the conveyor seat and is configured such that the rotating bar can automatically reset to a parallel arrangement with the limiting bar when there is no external force driving it.

[0010] The interval between the limiting bar and the rotating bar is set as the workpiece transport path, and the width of the workpiece transport path is adapted to the width of the workpiece to be printed. The conveyor seat has a number of mounting slots in the workpiece transport path, and a number of conveying rollers arranged perpendicular to the workpiece transport direction are arranged in the mounting slots.

[0011] The mounting base one has a movable base two on its top, and the movable base two has a spray nozzle. The spray nozzle is configured to move with the movable base two to a vertically downward position facing the workpiece transport path.

[0012] Preferably, a horizontally arranged sliding seat is fixed on the mounting base one, a movable seat one is slidably connected to the upper surface of the sliding seat one, a vertically arranged sliding seat two is fixed to the upper surface of the movable seat one, and a sliding seat three extending toward the conveying seat is slidably connected to the sliding seat two in its vertical direction, and the movable seat two and the sliding seat three are slidably connected.

[0013] Preferably, the inner walls of the sliding seat one, the sliding seat two, and the sliding seat three are all rotatably connected with lead screws, which respectively pass through the corresponding sliding seat one, the sliding seat three, and the sliding seat two and are screwed to them.

[0014] Preferably, the lower surface of the rotating bar is fixed with two sets of symmetrically arranged sliding blocks, and the upper surface of the conveying seat is provided with a sliding groove that is slidably connected to the sliding blocks. The width of the sliding groove is greater than the size of the sliding blocks, limiting the rotating bar to a reference rotation angle when it is parallel to the limiting bar. The rotating bar can rotate 0-30° in both directions relative to the reference rotation angle on the upper surface of the conveying seat.

[0015] Preferably, one end of the conveying roller is rotatably connected to the inner wall of the mounting groove via a rotating shaft, and a limiting seat is fixedly provided on the lower surface of the conveying seat, which is rotatably connected to the other end of the conveying roller.

[0016] Preferably, the conveyor seat has two sets of mounting slots, and each set of mounting slots is provided with two sets of conveying rollers, with the shaft ends of the two sets of conveying rollers fixedly connected to a synchronous pulley.

[0017] Preferably, a connecting piece is fixedly provided on the side of the rotating bar away from the limiting bar, and a vertically arranged rotating rod is provided in the conveying seat. The rotating end of the connecting piece away from the rotating bar is rotatably connected to the rotating rod.

[0018] The bottom end of the rotating rod is fixedly provided with a positioning piece that fits and is fixed to the upper surface of the conveying seat. A spring is provided between the rotating end of the connecting piece and the positioning piece, and is sleeved on the outer contour of the rotating rod. The first end of the spring is fixedly connected to the lower surface of the connecting piece, and the second end of the spring is fixedly connected to the upper surface of the positioning piece. The spring is configured such that when the rotating bar is driven to rotate by an external force, the spring passively rotates to generate torque. When the rotating bar is not driven by an external force, the spring releases the torque to drive the rotating bar to rotate to maintain a parallel arrangement with the limiting bar.

[0019] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art:

[0020] This invention provides a coding device for automatic workpiece position correction, comprising a movable inkjet head and an automatic workpiece posture correction mechanism. The automatic workpiece posture correction mechanism includes a limiting bar and a rotating bar. The rotating bar can rotate at an angle under external force. Simultaneously, a conveying roller is provided in the workpiece transport path between the limiting bar and the rotating bar to transport the workpiece. In this invention, the angle of the rotating bar can be manually changed (i.e., the angle on the inlet side of the workpiece transport path is greater than the angle on the outlet side), allowing the workpiece, regardless of its orientation, to enter the workpiece transport path with the rotating conveying roller. Then, the rotating bar is released, and driven by the torque of a spring, it returns to a parallel arrangement with the limiting bar. At this point, the workpiece is squeezed by the limiting bar and the rotating bar, achieving automatic workpiece posture correction. Finally, during workpiece transport, the inkjet head performs inkjet coding on the surface of the correctly positioned workpiece, improving the consistency of the inkjet image. Attached Figure Description

[0021] Figure 1 This utility model provides a three-dimensional overall structure of an inkjet printer for automatic workpiece position correction. Figure 1 ;

[0022] Figure 2 This utility model provides a three-dimensional overall structure of an inkjet printer for automatic workpiece position correction. Figure 2 ;

[0023] Figure 3 A schematic diagram of the structure of the mounting base provided by this utility model;

[0024] Figure 4 A schematic diagram of the automatic workpiece posture correction mechanism provided by this utility model;

[0025] Figure 5 This utility model provides a schematic diagram of the structure of the conveyor seat.

[0026] Explanation of reference numerals in the attached drawings: 1: Placement platform; 2: Mounting seat one; 3: Sliding seat one; 4: Moving seat one; 5: Sliding seat two; 6: Sliding seat three; 7: Moving seat two; 8: Mounting seat two; 9: Support rod; 10: Conveyor seat; 11: Limiting strip; 12: Mounting groove; 13: Conveyor roller; 14: Limiting seat; 15: Rotating bar; 16: Spring; 17: Positioning piece; 18: Rotating rod; 19: Connecting piece; 20: Lead screw. Detailed Implementation

[0027] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the inkjet printing device for automatic workpiece position correction proposed in this utility model. The advantages and features of this utility model will become clearer from the following description and claims.

[0028] See Figures 1-5 This embodiment provides a coding device for automatic workpiece position correction, which enables the workpiece to automatically correct its placement posture when it enters the coding area, thereby improving the consistency of the coding position of the coding image on the workpiece surface.

[0029] An inkjet printing device for automatic workpiece position correction includes a placement platform 1. A mounting base 2 and a mounting base 8 are fixedly mounted on the upper surface of the placement platform 1, positioned opposite each other. A horizontally arranged conveyor seat 10 is positioned above the top of the mounting base 8. The conveyor seat 10 is fixedly connected to the mounting base 8 via several support rods 9. In this embodiment, four sets of support rods 9 support the four corners of the conveyor seat 10 to ensure its stability. The height of the conveyor seat 10 can be changed by adjusting the height of the support rods 9.

[0030] The upper surface of the conveyor seat 10 is provided with an automatic workpiece posture correction mechanism.

[0031] The automatic workpiece posture correction mechanism includes a limiting bar 11 and a rotating bar 15. The limiting bar 11 is fixed on the first side of the upper surface of the conveyor seat 10 along the workpiece conveying direction. The rotating bar 15 is rotatably connected to the second side of the upper surface of the conveyor seat 10. The rotating bar 15 is configured such that when driven by an external force, the rotating bar 15 can rotate at an angle relative to the limiting bar 11. When there is no external force driving it, the rotating bar 15 can automatically reset to maintain a parallel arrangement with the limiting bar 11.

[0032] The interval between the limiting bar 11 and the rotating bar 15 is set as the workpiece transport path, and the width of the workpiece transport path is adapted to the width of the workpiece to be printed. That is, when the workpiece is in the workpiece transport path, it is subject to the bidirectional limiting function between the limiting bar 11 and the rotating bar 15, and the workpiece posture will not change significantly, thereby locking the placement posture of the workpiece.

[0033] The conveyor seat 10 has several mounting slots 12 in the workpiece conveying path. Several conveying rollers 13 are arranged perpendicular to the workpiece conveying direction in the mounting slots 12. The conveying rollers 13 can rotate under the drive of the motor. When the workpiece is in the workpiece conveying path, the lower surface of the workpiece contacts the surface of the conveying roller 13. When the conveying roller 13 rotates, it can drive the workpiece to move along the workpiece conveying path. At the same time, due to the limiting function of the limiting bar 11 and the rotating bar 15, the workpiece can also maintain a fixed placement posture during the movement.

[0034] Mounting base 1 2 has a movable base 2 7 on its top, and the movable base 2 7 has a spray nozzle. The spray nozzle is configured to move with the movable base 2 7 to a position that is vertically downward and directly facing the workpiece transport path, that is, the spray nozzle faces the surface of the workpiece being transported in the workpiece transport path, so as to realize the spray coding operation on the workpiece.

[0035] Therefore, this embodiment provides a coding device for automatic workpiece position correction. When the workpiece enters the entrance of the workpiece transport path, the limiting bar 11 and the rotating bar 15 cooperate to correct the placement position of the workpiece. Then, the conveying roller 13 rotates to drive the workpiece to move horizontally. The coding operation realizes the workpiece coding marking function. Finally, the workpiece with completed coding is automatically unloaded from the exit of the workpiece transport path, which effectively improves the coding operation efficiency and the consistency of the workpiece coding image.

[0036] The following will provide a more detailed description of the specific structure and function of the inkjet printing device for automatic workpiece position correction provided in this embodiment:

[0037] Preferably, in one embodiment, a horizontally arranged sliding seat 3 is fixed on the mounting base 2. A movable seat 4 is slidably connected to the upper surface of the sliding seat 3. A vertically arranged sliding seat 5 is fixed to the upper surface of the movable seat 4. A sliding seat 6 extending towards the conveyor seat 10 is slidably connected to the sliding seat 5 in its vertical direction. The movable seat 7 is slidably connected to the sliding seat 6. In this embodiment, the movable seat 7 slides in the horizontal direction of the sliding seat 6, the sliding seat 6 slides in the vertical direction of the sliding seat 5, and the movable seat 4, which is fixedly connected to the sliding seat 5, slides in the horizontal direction of the sliding seat 3. That is, the inkjet nozzle in the movable seat 7 can be flexibly moved to any position in the three-dimensional space of the inkjet coverage area to meet the inkjet printing operation requirements for workpieces of different specifications.

[0038] Preferably, in one embodiment, the inner walls of sliding seat 1 3, sliding seat 2 5, and sliding seat 3 6 are all rotatably connected to lead screws 20, which respectively pass through and are screwed onto the corresponding movable seat 1 4, sliding seat 3 6, and movable seat 2 7. A motor is fixedly installed at the output end of each lead screw 20. Starting the motor corresponding to movable seat 1 4, sliding seat 3 6, and movable seat 2 7 allows for adjustment of the three-dimensional spatial orientation of movable seat 2 7, improving its flexibility.

[0039] Preferably, in one embodiment, two sets of symmetrically arranged sliding blocks are fixed on the lower surfaces of both ends of the rotating bar 15, and a sliding groove is provided on the upper surface of the conveying seat 10 to slide in connection with the sliding blocks, and the width of the sliding groove is greater than the size of the sliding block. The sliding groove is used to limit the maximum rotation angle of the rotating bar 15.

[0040] The rotation bar 15 is limited to a reference rotation angle when it is parallel to the limit bar 11. The rotation bar 15 can rotate 0-30° in both directions relative to the reference rotation angle on the upper surface of the conveyor seat 10.

[0041] Preferably, in one embodiment, one end of the conveying roller 13 is rotatably connected to the inner wall of the mounting groove 12 via a rotating shaft, and a limiting seat 14 is fixed on the lower surface of the conveying seat 10 and rotatably connected to the other end of the conveying roller 13. The limiting seat 14 is used to limit the shaft end of the conveying roller 13 to prevent the conveying roller 13 from falling off.

[0042] Preferably, in one embodiment, the conveyor seat 10 has two sets of mounting slots 12, and each set of mounting slots 12 is provided with two sets of conveying rollers 13. The shaft ends of the two sets of conveying rollers 13 are fixedly connected to synchronous pulleys. Specifically, a synchronous belt is sleeved in the synchronous pulley. The synchronous pulley, the synchronous belt, and the corresponding tensioning mechanism are all common mechanisms known in the art, and therefore will not be described in detail. A motor for driving the conveying rollers 13 to rotate is fixedly installed on the outer wall of the end of the conveyor seat 10 away from the limiting seat 14. Starting the motor can drive the conveying rollers 13 to rotate, thereby realizing automatic loading and unloading of workpieces on the conveyor seat 10.

[0043] Preferably, in one embodiment, a connecting piece 19 is fixedly provided on the side of the rotating bar 15 away from the limiting bar 11, and a vertically arranged rotating rod 18 is provided in the conveying seat 10. The rotating end of the connecting piece 19 away from the rotating bar 15 is rotatably connected to the rotating rod 18.

[0044] The rotating rod 18 passes through the conveyor seat 10, and the bottom end of the rotating rod 18 is fixedly provided with a positioning piece 17 that fits and is fixed to the upper surface of the conveyor seat 10. A spring 16 is provided between the rotating end of the connecting piece 19 and the positioning piece 17, which is sleeved on the outer contour of the rotating rod 18. The first end of the spring 16 is fixedly connected to the lower surface of the connecting piece 19, and the second end of the spring 16 is fixedly connected to the upper surface of the positioning piece 17. The spring 16 is configured such that when the rotating bar 15 is driven by an external force to rotate, the bottom of the spring 16 remains fixed and the spring 16 passively rotates to generate torque. When the rotating bar 15 is not driven by an external force, the spring 16 releases the torque to drive the rotating bar 15 to rotate to maintain a parallel arrangement with the limiting bar 11.

[0045] Furthermore, in one embodiment, the fixed position of the rotating rod 18 and the conveying seat 10 can be adjusted, that is, the distance between the rotating bar 15 and the limiting bar 11 can be adjusted to adapt to different types of workpieces for posture correction.

[0046] In summary, this utility model provides a coding device for automatic workpiece position correction, which is equipped with a movable inkjet nozzle and an automatic workpiece posture correction mechanism. The automatic workpiece posture correction mechanism includes a limiting bar 11 and a rotating bar 15. The rotating bar 15 can rotate at an angle under the drive of external force. At the same time, a conveying roller 13 for conveying the workpiece is provided in the workpiece conveying path between the limiting bar 11 and the rotating bar 15.

[0047] When performing the inkjet coding operation on the workpiece using this utility model, the motors corresponding to the first movable seat 4, the third sliding seat 6, and the second movable seat 7 are first started, causing the lead screws 20 corresponding to the first sliding seat 3, the second sliding seat 5, and the third sliding seat 6 to rotate. This causes the second sliding seat 5 to move horizontally as a whole. The position of the second movable seat 7 in the x-axis direction is adjusted, and the third sliding seat 6 moves vertically as a whole. The position of the second movable seat 7 in the y-axis direction is adjusted, and the second movable seat 7 moves in the horizontal extension direction of the third sliding seat 6. The position of the second movable seat 7 in the z-axis direction is adjusted, and the upper inkjet nozzle of the second movable seat 7 is adjusted to a suitable position according to the size of the workpiece.

[0048] Then, the motor corresponding to the conveyor roller 13 is started, causing the conveyor roller 13 to rotate. The workpiece to be printed is placed on the surface of the conveyor roller 13, causing the conveyor roller 13 to drive the workpiece to move horizontally. Before the workpiece officially enters the workpiece transport path, the angle of the rotating bar 15 can be manually changed (i.e., the angle on the inlet side of the workpiece transport path is greater than the angle on the outlet side of the workpiece transport path), so that the workpiece, regardless of its orientation, can smoothly enter the workpiece transport path with the rotation of the conveyor roller 13. Then, the rotating bar 15 is released, and the rotating bar 15 is driven by the torque of the spring 16 to return to a parallel arrangement with the limiting bar 11. At this time, the workpiece is bidirectionally squeezed by the limiting bar 11 and the rotating bar 15, realizing automatic correction of the workpiece orientation and ensuring that the workpiece does not deviate during the printing process. Finally, during the workpiece transport process, the printing head performs the printing operation on the surface of the workpiece with the correct orientation, improving the consistency of the printed image.

[0049] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0050] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A coding device for automatic workpiece position correction, characterized in that, include: Placement platform (1), the upper surface of which is fixedly provided with mounting base one (2) and mounting base two (8); The top of the mounting base 2 (8) is provided with a horizontally arranged conveyor seat (10), the conveyor seat (10) is fixedly connected to the mounting base 2 (8) by a number of support rods (9), and the upper surface of the conveyor seat (10) is provided with an automatic workpiece posture correction mechanism. The automatic workpiece posture correction mechanism includes a limiting bar (11) and a rotating bar (15). The limiting bar (11) is fixed on the first side of the upper surface of the conveying seat (10) along the workpiece conveying direction. The rotating bar (15) is rotatably connected to the second side of the upper surface of the conveying seat (10) and is configured such that the rotating bar (15) can automatically reset to maintain a parallel arrangement with the limiting bar (11) when there is no external force driving it. The interval between the limiting bar (11) and the rotating bar (15) is set as the workpiece transmission path, and the width of the workpiece transmission path is adapted to the width of the workpiece to be printed. The conveying seat (10) has several mounting grooves (12) in the workpiece transmission path, and several conveying rollers (13) arranged perpendicular to the workpiece transmission direction are provided in the mounting grooves (12). The mounting base one (2) is provided with a movable base two (7) on its top. The movable base two (7) is provided with a spray nozzle. The spray nozzle is configured to move with the movable base two (7) to a position that is vertically downward and directly opposite the workpiece transport path.

2. The inkjet printing device for automatic workpiece position correction as described in claim 1, characterized in that, A horizontally arranged sliding seat 1 (3) is fixed on the mounting base 1 (2). A movable seat 1 (4) is slidably connected to the upper surface of the sliding seat 1 (3). A vertically arranged sliding seat 2 (5) is fixed to the upper surface of the movable seat 1 (4). A sliding seat 3 (6) extending toward the conveying seat (10) is slidably connected to the sliding seat 2 (5) in its vertical direction. The movable seat 2 (7) is slidably connected to the sliding seat 3 (6).

3. The inkjet printing device for automatic workpiece position correction as described in claim 2, characterized in that, The inner walls of the sliding seat one (3), the sliding seat two (5) and the sliding seat three (6) are all rotatably connected with lead screws (20), and the lead screws (20) pass through the corresponding moving seat one (4), the sliding seat three (6) and the moving seat two (7) and are screwed to them respectively.

4. The inkjet printing device for automatic workpiece position correction as described in claim 1, characterized in that, The lower surface of the rotating bar (15) is fixed with two sets of symmetrically arranged sliding blocks. The upper surface of the conveying seat (10) is provided with a sliding groove that is slidably connected to the sliding blocks. The width of the sliding groove is greater than the size of the sliding blocks, limiting the rotating bar (15) to a reference rotation angle when it is parallel to the limiting bar (11). The rotating bar can rotate 0-30° in both directions relative to the reference rotation angle on the upper surface of the conveying seat (10).

5. The inkjet printing device for automatic workpiece position correction as described in claim 1, characterized in that, One end of the conveying roller (13) is rotatably connected to the inner wall of the mounting groove (12) via a rotating shaft, and a limiting seat (14) is fixed on the lower surface of the conveying seat (10) and rotatably connected to the other end of the conveying roller (13).

6. The inkjet printing device for automatic workpiece position correction as described in claim 5, characterized in that, The conveyor seat (10) has two sets of mounting slots (12), and each set of mounting slots (12) is provided with two sets of conveying rollers (13). The shaft ends of the two sets of conveying rollers (13) are fixedly connected to synchronous pulleys.

7. The inkjet printing device for automatic workpiece position correction as described in claim 1, characterized in that, A connecting piece (19) is fixedly provided on the side of the center of the rotating bar (15) away from the limiting bar (11). A vertically arranged rotating rod (18) is provided in the conveying seat (10). The rotating end of the connecting piece (19) away from the rotating bar (15) is rotatably connected to the rotating rod (18). The bottom end of the rotating rod (18) is fixedly provided with a positioning piece (17) that fits and is fixed to the upper surface of the conveying seat (10). A spring (16) is provided between the rotating end of the connecting piece (19) and the positioning piece (17) and is sleeved on the outer contour of the rotating rod (18). The first end of the spring (16) is fixedly connected to the lower surface of the connecting piece, and the second end of the spring (16) is fixedly connected to the upper surface of the positioning piece (17). The spring (16) is configured such that when the rotating bar (15) is driven by an external force to rotate, the spring (16) passively rotates to generate torque. When the rotating bar (15) is not driven by an external force, the spring (16) releases torque to drive the rotating bar (15) to rotate to maintain a parallel arrangement with the limiting bar (11).

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