Automatic printing device for digital jet printing of tableware

Abstract

The utility model relates to the technical field of tableware printing, in particular to an automatic printing device for digital jet printing of tableware, which comprises a conveying unit, an automatic box dividing unit, a plasma surface treatment unit and a digital jet printing unit which are sequentially erected above the conveying unit. The automatic box separating unit comprises an adjusting mechanism and four discharging mechanisms, and the four discharging mechanisms are fixedly installed on the adjusting mechanism. The feeding mechanism has the advantages that by arranging the lengthening plates, more meal boxes can be placed among the four feeding mechanisms, when the number of the meal boxes among the four feeding mechanisms is reduced and the height of the stacked meal boxes is lower than the bottom ends of the lengthening plates, one lengthening plate can be pulled out and taken down, then the meal boxes continue to be stacked among the four feeding mechanisms, and the meal boxes can be placed among the four feeding mechanisms. After the meal boxes are stacked, the lengthened plate which is taken down is remounted to the original position, so that the problem that materials need to be placed frequently is avoided, and filling is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of tableware printing technology, and in particular to an automatic printing device for digital inkjet printing of tableware. Background Technology

[0002] To showcase their brand, restaurants often print their name or logo on their tableware. Restaurants that offer takeout, in particular, usually customize designs on disposable food containers, which require digital inkjet printing technology.

[0003] Existing automatic printing equipment for digital inkjet printing of tableware mainly includes a conveying unit, an automatic box-separating unit, a plasma surface treatment unit, and a digital inkjet printing unit. The automatic box-separating unit, plasma surface treatment unit, and digital inkjet printing unit are all mounted above the conveying unit. During operation, stacked lunch boxes are placed into the automatic box-separating unit, which separates the bottom lunch box and places it onto the conveying unit. The conveying unit then transports the lunch box to the plasma surface treatment unit for cleaning its printing area, and finally, the digital inkjet printing unit prints on the surface of the lunch box. However, existing automatic printing equipment for digital inkjet printing of tableware still has the following drawbacks in use:

[0004] The automatic box-separating unit typically includes four vertical guide plates. Stacked lunch boxes or lids are placed into the four vertical guide plates and then separated by the box-separating mechanism below. The height of the four vertical guide plates determines the number of lunch boxes or lids that can be placed at once. The higher the guide plate, the more lunch boxes or lids can be placed at once, thus reducing the need for frequent feeding and saving manpower. The lower the guide plate, the fewer lunch boxes or lids can be placed at once, thus requiring more frequent feeding and consuming more manpower. However, a problem with a higher guide plate is that the feeding opening is also higher, making it inconvenient for the feeding personnel to operate. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical defects described in the background art.

[0006] Therefore, one objective of this utility model is to provide an automatic printing device for digital inkjet printing of tableware, which aims to solve the problem that the automatic box-separating unit of the existing automatic printing device for digital inkjet printing of tableware requires frequent feeding, which consumes manpower or is inconvenient for feeding.

[0007] To achieve the above objectives, one embodiment of the present invention provides an automatic printing device for digital inkjet printing of tableware, including a conveying unit, an automatic box-separating unit, a plasma surface treatment unit, and a digital inkjet printing unit. The automatic box-separating unit, the plasma surface treatment unit, and the digital inkjet printing unit are sequentially mounted above the conveying unit. The automatic box-separating unit includes an adjustment mechanism and four feeding mechanisms, and the four feeding mechanisms are fixedly mounted on the adjustment mechanism.

[0008] The feeding mechanism includes a servo motor and an extension plate. A feeding wheel is fixedly installed on the output shaft end of the servo motor. A guide plate is fixedly installed on one side of the servo motor. Two reinforcing ribs are fixedly connected to the back of the guide plate. A limit plate is fixedly connected to the side of the two reinforcing ribs away from the guide plate. An insert plate is fixedly connected to the bottom of the back of the extension plate. The insert plate is inserted between the two reinforcing ribs. A second reinforcing rib is fixedly connected to the back of the extension plate.

[0009] The beneficial effects are as follows: First, by setting up the extension plate, more lunch boxes can be placed between the four feeding mechanisms. When the number of lunch boxes between the four feeding mechanisms decreases and the height of the stacked lunch boxes is lower than the bottom of the extension plate, one of the extension plates can be pulled out and removed. Then, lunch boxes can continue to be stacked between the four feeding mechanisms. After the lunch boxes are stacked, the removed extension plate can be reinstalled in its original position. This avoids the problem of frequent feeding and prevents the problem of feeding due to the guide plate being too high when filling, thus making it more convenient to use.

[0010] Secondly, by setting up reinforcing rib one and reinforcing rib two, the guide plate and the extension plate are reinforced respectively, thus avoiding the problem of the guide plate and the extension plate tilting due to their high height.

[0011] Preferably, in any of the above embodiments, the feeding wheel includes a roller and a guide plate. The guide plate is fixedly installed on the top of the roller. A support ring is fixedly connected to the top of the outer surface of the roller. The outer surface of the support ring has a threaded groove. The outer surface of the guide plate has a feeding groove and a guide groove. The top of the roller has a positioning hole. The top of the guide plate has an adjustment groove. The output shaft end of the servo motor has a connecting groove. A positioning plate is rotatably connected inside the connecting groove. An insertion hole is provided at the axis of the roller. A positioning ring is fixedly connected to the bottom of the roller. The bottom of the positioning ring has two symmetrical positioning grooves.

[0012] The beneficial effects are as follows: when the positioning plate rotates to the vertical position, the output shaft of the servo motor passes through the roller. Then, the positioning plate is rotated to make it horizontal, and then the roller slides down. The positioning plate can then be inserted into the positioning groove, thereby supporting the roller and preventing it from falling. This facilitates the disassembly and replacement of the feeding roller, making it more convenient when the feeding roller is worn or damaged, or when it is necessary to replace the feeding roller of different specifications due to the edge size of the lunch box.

[0013] Preferably, in any of the above embodiments, the adjusting mechanism includes two support frames, a double-ended lead screw rotatably connected between the two support frames, a guide rod fixedly connected between the two support frames, a mounting block 1 fixedly connected to the middle of the guide rod, two mutually symmetrical moving blocks slidably connected to the outer surface of the guide rod, the moving blocks being threadedly connected to the outer surface of the double-ended lead screw, a motor 1 fixedly mounted on one side of one of the support frames, the output end of the motor 1 fixedly connected to one end of the double-ended lead screw, a slide rod fixedly connected to one side of the moving block, a mounting block 2 slidably connected to the outer surface of the slide rod, a sliding groove 1 opened on the sides of the two support frames, a slider 1 slidably connected inside each of the two sliding grooves 1, a moving rod fixedly connected between the two sliders 1, a mounting block 3 fixedly connected to the middle of the moving rod, and four feeding mechanisms respectively mounted on mounting blocks 1, 2, and 3.

[0014] The beneficial effect is that the spacing between the four feeding mechanisms is adjustable, so the spacing between the four feeding mechanisms can be adjusted according to the size of the lunch box, thus making it suitable for lunch boxes of different sizes and improving practicality.

[0015] Preferably, in the above scheme, a lead screw is rotatably connected inside the slide groove one, and a slider one is threadedly connected to the outer surface of the lead screw one. One end of each of the two lead screws one is fixedly connected to a pulley one, and the two pulleys one are connected by a belt one. A motor two is fixedly mounted on one side of one of the support frames, and the output shaft end of the motor two is fixedly connected to the end of the lead screw one. A slide groove two is provided on the side of each of the two support frames, and a slider two is slidably connected inside the slide groove two. A lead screw two is rotatably connected inside the slide groove two, and the slider two is threadedly connected to the outer surface of the lead screw two. An L-shaped push rod is slidably connected inside the slider two, and one end of the L-shaped push rod is fixedly connected to the bottom of the mounting block two. One end of each of the two lead screws two is fixedly connected to a pulley two, and one end of each of the two lead screws one is fixedly connected to a pulley three. The pulleys two and three are connected by a belt two.

[0016] The beneficial effects are as follows: one motor can synchronously drive two lead screws to rotate, thereby adjusting the distance between the feeding mechanism on mounting block two and mounting block three and the feeding mechanism on mounting block one. Therefore, the number of motors used can be reduced, thereby reducing manufacturing costs.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a first-view structural schematic diagram of the adjustment mechanism of this utility model.

[0021] Figure 3 This is a structural schematic diagram of the adjustment mechanism of this utility model from a second perspective.

[0022] Figure 4 This is a schematic diagram of the material feeding mechanism of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the extended plate of this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the top of the feeding wheel of this utility model.

[0025] Figure 7 This is a schematic diagram of the bottom structure of the feeding wheel of this utility model.

[0026] Figure 8 This is a schematic diagram of the servo motor of this utility model.

[0027] The components include: 1. Conveying unit; 2. Automatic box-separating unit; 3. Plasma surface treatment unit; 4. Digital inkjet printing unit; 5. Adjustment mechanism; 51. Support frame; 52. Double-ended lead screw; 521. Motor 1; 522. Moving block; 523. Slide rod; 524. Mounting block 2; 53. Guide rod; 531. Mounting block 1; 54. Slide groove 1; 541. Slider 1; 542. Moving rod; 543. Mounting block 3; 544. Lead screw 1; 545. Pulley 1; 546. Belt 1; 547. Motor 2; 55. Slide groove 2; 551. Slider 2; 552. Lead screw 2; 55... 3. L-shaped push rod; 554. Belt pulley two; 555. Belt pulley three; 556. Belt two; 6. Feeding mechanism; 61. Servo motor; 611. Connecting groove; 612. Positioning plate; 62. Guide plate; 621. Reinforcing rib one; 622. Limiting plate; 63. Extension plate; 631. Insert plate; 632. Reinforcing rib two; 7. Feeding wheel; 71. Roller; 711. Support ring; 712. Threaded groove; 713. Positioning hole; 714. Insertion hole; 715. Positioning ring; 716. Positioning groove; 72. Guide plate; 721. Drop groove; 722. Guide groove; 723. Adjustment groove. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] This utility model provides an automatic printing device for digital inkjet printing of tableware.

[0031] Example 1:

[0032] like Figure 1As shown, it includes a conveying unit 1, an automatic box-separating unit 2, a plasma surface treatment unit 3, and a digital inkjet printing unit 4. The automatic box-separating unit 2, the plasma surface treatment unit 3, and the digital inkjet printing unit 4 are sequentially mounted above the conveying unit 1. The conveying unit 1 is a conveyor belt. The plasma surface treatment unit 3 and the digital inkjet printing unit 4 are both prior art and are known to those skilled in the art. They will not be described in detail in this application. The automatic box-separating unit 2 includes an adjustment mechanism 5 and four feeding mechanisms 6. The four feeding mechanisms 6 are fixedly installed on the adjustment mechanism 5.

[0033] like Figure 4 and Figure 5 As shown, the unloading mechanism 6 includes a servo motor 61 and an extension plate 63. The output shaft end of the servo motor 61 is fixedly mounted with an unloading wheel 7. A guide plate 62 is fixedly mounted on one side of the servo motor 61. Two reinforcing ribs 621 are fixedly connected to the back of the guide plate 62. A limiting plate 622 is fixedly connected to the side of the two reinforcing ribs 621 away from the guide plate 62. A slot gap is formed between the reinforcing ribs 621, the guide plate 62, and the limiting plate 622. An insert plate 631 is fixedly connected to the bottom of the back of the extension plate 63. The insert plate 631 is inserted between the two reinforcing ribs 621 and is located in the slot gap between the reinforcing ribs 621, the guide plate 62, and the limiting plate 622, thereby fixing and supporting the extension plate 63. A second reinforcing rib 632 is fixedly connected to the back of the extension plate 63 to reinforce the extension plate 63 and prevent it from bending.

[0034] like Figure 6 As shown, the feeding wheel 7 includes a roller 71 and a guide plate 72. The roller 71 has a positioning hole 713 on its top, and the guide plate 72 has an adjusting groove 723 on its top. Bolts are used to pass through the adjusting groove 723 and connect to the positioning hole 713, thereby fixing the guide plate 72 to the top of the roller 71. A support ring 711 is fixedly connected to the top of the outer surface of the roller 71. The outer surface of the support ring 711 has a threaded groove 712. The outer surface of the guide plate 72 has a material drop groove 721 and a guide groove 722. The guide groove 722 is located at the opening above the threaded groove 712. The stacked lunch boxes are placed above the support ring 711. As the feeding wheel 7 rotates, the beginning of the guide groove 722 of the guide plate 72 rotates and inserts between two adjacent lunch boxes. The bottom lunch box will then enter the threaded groove 712 along the guide groove 722 and fall from the bottom of the threaded groove 712. The other lunch boxes are guided by the guide groove 722 to the top of the guide plate 72. The feeding wheel 7 continues to rotate, and the stacked lunch boxes will fall through the drop groove 721 and land above the support ring 711. Thus, the feeding wheel 7 rotates back and forth, which can separate the stacked lunch boxes one by one and make the lunch boxes fall onto the conveying unit 1.

[0035] like Figure 2-3As shown, the adjusting mechanism 5 includes two support frames 51, with a double-ended lead screw 52 rotatably connected between them. A guide rod 53 is fixedly connected between the two support frames 51, and a mounting block 531 is fixedly connected to the middle of the guide rod 53. Two symmetrically moving blocks 522 are slidably connected to the outer surface of the guide rod 53. The moving blocks 522 are threadedly connected to the outer surface of the double-ended lead screw 52. When the double-ended lead screw 52 rotates, the two moving blocks 522 will synchronously move closer to or further away from the mounting block 531. A motor 521 is fixedly mounted on one side of one of the support frames 51. The output end of the motor 521 is fixedly connected to one end of the double-ended lead screw 52. The motor 521 is used to drive the double-ended lead screw 52 to rotate, thereby driving the two moving blocks 522. 22. A sliding rod 523 is fixedly connected to one side of the moving block 522. A second mounting block 524 is slidably connected to the outer surface of the sliding rod 523. As the moving block 522 moves, the two mounting blocks 524 can be moved closer or further apart by the two sliding rods 523. The sides of the two support frames 51 are provided with sliding grooves 54. Sliding blocks 541 are slidably connected inside the two sliding grooves 54. A moving rod 542 is fixedly connected between the two sliding blocks 541. A third mounting block 543 is fixedly connected to the middle of the moving rod 542. By sliding the moving rod 542, it can be moved away from or closer to the first mounting block 531. Four feeding mechanisms 6 are respectively installed on the first mounting block 531, the second mounting block 524, and the third mounting block 543. By adjusting the mounting blocks... The spacing between mounting block 531 and mounting block 543, and the spacing between the two mounting blocks 524, can be adjusted to regulate the spacing of the four feeding mechanisms 6, thus making it suitable for feeding lunch boxes of different sizes. A lead screw 544 is rotatably connected inside the slide 54, and a slider 541 is threaded onto the outer surface of the lead screw 544. One end of each lead screw 544 is fixedly connected to a pulley 545, which is driven by a belt 546. A motor 547 is fixedly mounted on one side of one of the support frames 51. The output shaft of the motor 547 is fixedly connected to the end of the lead screw 544. By driving one lead screw 544 to rotate, the motor 547 can drive the other lead screw 544 via the belt 545. The motor rotates at 544, allowing one motor to synchronously adjust the movement of two sliders 541. Each of the two support frames 51 has a groove 55 on its side. Slider 551 is slidably connected inside groove 55, and a lead screw 552 is rotatably connected inside groove 55. Slider 551 is threaded onto the outer surface of lead screw 552. Rotating lead screw 552 causes slider 551 to slide inside groove 55. An L-shaped push rod 553 is slidably connected inside slider 551. One end of the L-shaped push rod 553 is fixedly connected to the bottom of mounting block 524. The moving slider 551 pushes mounting block 524 onto the surface of push rod 523 via the L-shaped push rod 553, thus avoiding the need to adjust the spacing of the four feeding mechanisms 6.The issue is that the unloading mechanism 6 on mounting block 3 543 is too close to the unloading mechanism 6 on mounting block 2 524.

[0036] Example 2:

[0037] like Figure 7-8 As shown, based on Embodiment 1, the output shaft end of the servo motor 61 is provided with a connecting groove 611, and a positioning plate 612 is rotatably connected inside the connecting groove 611. An insertion hole 714 is provided at the axis of the roller 71. When the positioning plate 612 is rotated to a vertical position, the output shaft of the servo motor 61 can pass through the roller 71 through the insertion hole 714. A positioning ring 715 is fixedly connected to the bottom of the roller 71. Two symmetrical positioning grooves 716 are provided at the bottom of the positioning ring 715. After the output shaft of the servo motor 61 passes through the roller 71, the positioning plate 612 is rotated to make it horizontal, and then the roller 71 slides down. The positioning plate 612 can then be inserted into the inside of the positioning groove 716, thereby supporting the roller 71 and preventing the roller 71 from falling.

[0038] Example 3:

[0039] like Figure 3 As shown, based on Embodiment 1 or Embodiment 2, one end of each of the two lead screws 2 552 is fixedly connected to a pulley 2 554, and one end of each of the two lead screws 1 544 is fixedly connected to a pulley 3 555. The pulleys 2 554 and 3 555 are connected by a belt 2 556. The two lead screws 1 544 and two lead screws 2 552 can be driven to rotate synchronously by a motor 2 547, thereby saving the use of a motor and reducing the cost. The diameter of pulley 2 554 is twice the diameter of pulley 3 555. Thus, when pulley 3 555 rotates two revolutions, it drives pulley 2 554 to rotate one revolution, thereby causing lead screw 1 544 to rotate two revolutions and lead screw 2 552 to rotate one revolution. Therefore, the distance that the feeding mechanism 6 on mounting block 2 524 moves is half the distance that the feeding mechanism 6 on mounting block 3 543 moves. Thus, during adjustment, it can be ensured that the two mounting blocks 2 524 are always located between mounting block 1 531 and mounting block 3 543.

[0040] The working principle of this utility model is as follows: In use, according to the size of the lunch box, the spacing of the four feeding mechanisms 6 is adjusted by the adjusting mechanism 5. Then, the stacked lunch boxes are placed between the four feeding mechanisms 6. The feeding mechanisms 6 separate the lunch boxes one by one from below, so that the lunch boxes fall one by one onto the conveying unit 1. Then, the conveying unit 1 transports them to the bottom of the plasma surface treatment unit 3 for cleaning. Finally, they are sent to the digital inkjet printing unit 4 for inkjet printing. When the stacked height of the lunch boxes in the four feeding mechanisms 6 is lower than the bottom of the extension plate 63, the extension plate 63 can be pulled up and removed. Then, the lunch boxes can continue to be stacked between the four feeding mechanisms 6. After the lunch boxes are stacked, the removed extension plate 63 can be reinstalled in its original position.

Claims

1. An automatic printing device for digital inkjet printing of tableware, comprising a conveying unit (1), an automatic box-separating unit (2), a plasma surface treatment unit (3), and a digital inkjet printing unit (4), wherein the automatic box-separating unit (2), the plasma surface treatment unit (3), and the digital inkjet printing unit (4) are sequentially mounted above the conveying unit (1), characterized in that, The automatic box-separating unit (2) includes an adjustment mechanism (5) and four feeding mechanisms (6), with the four feeding mechanisms (6) fixedly installed on the adjustment mechanism (5); The feeding mechanism (6) includes a servo motor (61) and an extension plate (63). The output shaft end of the servo motor (61) is fixedly mounted with a feeding wheel (7). A guide plate (62) is fixedly mounted on one side of the servo motor (61). Two reinforcing ribs (621) are fixedly connected to the back of the guide plate (62). A limiting plate (622) is fixedly connected to the side of the two reinforcing ribs (621) away from the guide plate (62). An insert plate (631) is fixedly connected to the bottom of the back of the extension plate (63). The insert plate (631) is inserted between the two reinforcing ribs (621). A second reinforcing rib (632) is fixedly connected to the back of the extension plate (63).

2. The automatic printing device for digital inkjet printing of tableware according to claim 1, characterized in that, The feeding wheel (7) includes a roller (71) and a guide plate (72). The guide plate (72) is fixedly installed on the top of the roller (71). A support ring (711) is fixedly connected to the top of the outer surface of the roller (71). A threaded groove (712) is opened on the outer surface of the support ring (711). A dropping groove (721) is opened on the outer surface of the guide plate (72). A guide groove (722) is opened on the outer surface of the guide plate (72).

3. The automatic printing device for digital inkjet printing of tableware according to claim 2, characterized in that, The roller (71) has a positioning hole (713) on its top, and the guide plate (72) has an adjustment groove (723) on its top.

4. The automatic printing device for digital inkjet printing of tableware according to claim 2, characterized in that, The output shaft of the servo motor (61) has a connecting groove (611), and a positioning plate (612) is rotatably connected inside the connecting groove (611). The roller (71) has an insertion hole (714) at its shaft center. A positioning ring (715) is fixedly connected to the bottom of the roller (71), and two symmetrical positioning grooves (716) are opened at the bottom of the positioning ring (715).

5. The automatic printing device for digital inkjet printing of tableware according to claim 1, characterized in that, The adjusting mechanism (5) includes two support frames (51), a double-ended lead screw (52) is rotatably connected between the two support frames (51), a guide rod (53) is fixedly connected between the two support frames (51), a mounting block (531) is fixedly connected to the middle of the guide rod (53), two mutually symmetrical moving blocks (522) are slidably connected to the outer surface of the guide rod (53), the moving blocks (522) are threadedly connected to the outer surface of the double-ended lead screw (52), a motor (521) is fixedly installed on one side of one of the support frames (51), and the output end of the motor (521) is connected to the double-ended lead screw (52). One end is fixedly connected, and a slide rod (523) is fixedly connected to one side of the movable block (522). A second mounting block (524) is slidably connected to the outer surface of the slide rod (523). A first sliding groove (54) is opened on the side of the two support frames (51). A first slider (541) is slidably connected inside the two first sliding grooves (54). A movable rod (542) is fixedly connected between the two first sliders (541). A third mounting block (543) is fixedly connected to the middle of the movable rod (542). The four feeding mechanisms (6) are respectively installed on the first mounting block (531), the second mounting block (524), and the third mounting block (543).

6. The automatic printing device for digital inkjet printing of tableware according to claim 5, characterized in that, The slide groove (54) is rotatably connected to a lead screw (544), and the slider (541) is threadedly connected to the outer surface of the lead screw (544). One end of each of the two lead screws (544) is fixedly connected to a pulley (545), and the two pulleys (545) are connected by a belt (546). One side of one of the support frames (51) is fixedly mounted with a motor (547), and the output shaft end of the motor (547) is fixedly connected to the end of the lead screw (544).

7. The automatic printing device for digital inkjet printing of tableware according to claim 6, characterized in that, Both of the support frames (51) have a sliding groove (55) on their sides. A slider (551) is slidably connected inside the sliding groove (55). A lead screw (552) is rotatably connected inside the sliding groove (55). The slider (551) is threaded to the outer surface of the lead screw (552). An L-shaped push rod (553) is slidably connected inside the slider (551). One end of the L-shaped push rod (553) is fixedly connected to the bottom of the mounting block (524).

8. The automatic printing device for digital inkjet printing of tableware according to claim 7, characterized in that, One end of each of the two lead screws (552) is fixedly connected to a pulley (554), and one end of each of the two lead screws (544) is fixedly connected to a pulley (555). The pulleys (554) and (555) are connected by a belt (556).

Images