Gift box omni-directional painting device and method

Abstract

The embodiment of the invention provides a gift box omni-directional painting device and method, and relates to the technical field of painting equipment. The gift box omni-directional painting device comprises a machine body, a turnover mechanism, a lifting mechanism, a painting mechanism and a painting template, the upper wall of the machine body is provided with a notch for a gift box to penetrate through. The overturning mechanism and the lifting mechanism are both arranged in the machine body, the overturning mechanism is used for overturning the gift box, and the lifting mechanism is used for driving the gift box to move in the vertical direction so as to penetrate through a notch in the upper wall of the machine body; the painting spraying mechanism is used for spraying printing ink to the surface of the gift box; through multiple times of overturning of the overturning mechanism and up-and-down movement of the lifting mechanism, painting of multiple surfaces of the gift box can be achieved in sequence till all-directional painting of the gift box is completed.

Description

Technical Field

[0001] The invention relates to the technical field of inkjet printing equipment, and in particular to an all-round inkjet printing device and method for a gift box. Background Art

[0002] As a common form of packaging, gift boxes are widely used in the fields of gifts and product displays. Their appearance design and decorative effects directly affect consumers' first impressions. Among them, square gift boxes have become one of the most widely used types on the market due to their regular structure and easy stacking and display. In order to enhance the visual appeal of square gift boxes, spray painting technology has been introduced into the surface decoration process of gift boxes. Traditional gift box spray painting usually uses a spray gun or automated spraying equipment to apply paint or patterns on the surface of the gift box to achieve a beautiful or personalized design. However, existing spray painting methods often require additional equipment support or multiple processes when dealing with multi-sided structures such as square gift boxes, which increases production costs and process difficulty.

[0003] At present, in order to achieve all-round spray painting of gift boxes, a common method is to complete it through manual operation. Specifically, the worker needs to place the gift box in front of the spray gun and rely on manual flipping of the gift box so that its various surfaces are exposed to the spraying range in turn. By this method of manual flipping one by one, it can be ensured that each side of the gift box is evenly sprayed. However, this mode of operation has significant disadvantages: manual flipping is not only inefficient, but also easily leads to uneven spray painting quality due to inconsistent operator techniques. In addition, long-term manual operation will increase labor intensity, bring inconvenience to the production process, and it is difficult to meet the needs of large-scale production. Therefore, the existing gift box spray painting technology still has a lot of room for improvement in terms of operational convenience and efficiency improvement. Summary of the invention

[0004] According to an embodiment of the present invention, a omnidirectional spray painting device and method for a gift box are provided to solve the problems raised by the above background technology.

[0005] In a first aspect of the present invention, a omnidirectional spray painting device for a gift box is provided.

[0006] The all-round inkjet printing device for gift boxes comprises: a machine body, a turning mechanism, a lifting mechanism, an inkjet printing mechanism and an inkjet printing template; The upper wall of the body is provided with a notch for the gift box to pass through; The flipping mechanism and the lifting mechanism are both arranged inside the body, wherein the flipping mechanism is used to flip the gift box, and the lifting mechanism is used to drive the gift box to move in a vertical direction to pass through the gap in the upper wall of the body; The inkjet printing mechanism is used to spray ink onto the surface of the gift box; The inkjet printing template is arranged between the inkjet printing mechanism and the gift box, and the ink sprayed by the inkjet printing mechanism forms a pattern on the surface of the gift box through the inkjet printing template.

[0007] Preferably, the flipping mechanism includes a base, a cylinder, a first rotating shaft, a mounting arm, a rotation drive assembly and a first clamping assembly; the base is fixedly mounted inside the body, the mounting arm is L-shaped, and is rotatably connected to the base through the first rotating shaft, one end of the cylinder is rotatably connected to the base, and the other end of the cylinder is connected to the mounting arm, and the output end of the cylinder extends out to drive the mounting arm to rotate relative to the axis of the first rotating shaft; the rotation drive assembly is connected to the mounting arm, and the first clamping assembly is connected to the rotation drive assembly, the first clamping assembly is used to clamp the gift box, and the rotation drive assembly is used to drive the first clamping assembly to rotate.

[0008] Preferably, the rotary drive assembly includes a second rotating shaft, a mounting disk, a ring gear, a first gear and a first motor; the second rotating shaft rotates with the mounting arm, the mounting disk is rotationally connected to the second rotating shaft, the ring gear is fixedly connected to the mounting disk, the first motor is fixedly connected to the mounting arm, the output end of the first motor is connected to the first gear, the first gear is meshingly connected to the ring gear, and the first clamping assembly is fixedly connected to the mounting disk.

[0009] Preferably, the first clamping assembly includes a box body, a bidirectional screw, two first guide shafts, a second motor and two clamping plates; the bidirectional screw is rotatably installed inside the box body, one end of the bidirectional screw is connected to the output end of the second motor, the two first guide shafts are fixedly installed inside the box body, a strip notch is opened on the box body, the bidirectional screw passes through the two clamping plates, and the two clamping plates are threadedly connected to the bidirectional screw, the two clamping plates pass through the strip notch and are slidably connected to the strip notch, and the two first guide shafts pass through the clamping plates and are slidably connected to the clamping plates.

[0010] Preferably, the lifting mechanism includes two guide rails, a first lead screw, a slider, a lifting plate, a second clamping assembly and a third motor; the two guide rails are fixedly installed inside the machine body, the upper ends of the two guide rails are connected by a connecting plate, the first lead screw is rotatably arranged between the two guide rails, the first lead screw is threadedly connected to the lifting plate, the upper end of the first lead screw is connected to the third motor, the slider is slidably connected to the two guide rails, the lifting plate is fixedly connected to the slider, and the second clamping assembly is fixedly connected to the lifting plate.

[0011] Preferably, it also includes a cover plate and four mounting components; the cover plate is provided with a notch matching the gift box, and the mounting component includes a mounting seat, a locking bolt, a locking piece and a limiting portion; the mounting seat is fixedly connected to the top wall of the body, the limiting portion is fixedly connected to the mounting seat, the locking bolt passes through the locking piece and is threadedly connected to the mounting seat, the locking piece is threadedly connected to the locking bolt, the locking piece is slidably connected to the limiting portion, and a clamping space for the cover plate is formed between the locking piece and the mounting seat.

[0012] Preferably, the inkjet mechanism includes two arms, a third rotating shaft, a fourth motor, a transmission assembly, an inkjet assembly and a carrying plate; the two arms are fixedly connected to the top wall of the body, the carrying plate is slidably installed between the two arms, the third rotating shaft is rotatably installed between the two arms, the fourth motor is installed on the arm, the output end of the fourth motor is connected to the third rotating shaft, the transmission assembly is connected to the third rotating shaft, and the transmission assembly is also connected to the carrying plate, the number of the inkjet assemblies is at least two, and the inkjet assembly is fixedly connected to the third rotating shaft.

[0013] Preferably, the transmission assembly includes a first pulley, a second pulley, a transmission belt, a fourth rotating shaft, a second gear and a rack; the first pulley is fixedly connected to the third rotating shaft, the fourth rotating shaft is rotatably mounted on the support arm, the second pulley is fixedly mounted on the fourth rotating shaft, the transmission belt passes around the first pulley and the second pulley, the second gear is connected to the fourth rotating shaft, the rack is connected to the supporting plate, and the second gear is meshingly connected to the rack.

[0014] Preferably, the inkjet assembly includes a container box, a spray gun, a second lead screw, a second guide shaft, a fifth motor and a mounting plate, the mounting plate is fixedly connected to the third rotating shaft, the second lead screw is rotatably connected to the mounting plate, the output end of the fifth motor is connected to the second lead screw, the second guide shaft is fixedly connected to the mounting plate, the container box is slidably connected to the second guide shaft, the container box is threadedly connected to the second lead screw, and the spray gun is connected to the container box.

[0015] In a second aspect of the present invention, a method for spraying omnidirectionally on a gift box is provided; The method comprises the following steps: S1. Place the gift box to be sprayed on the lifting mechanism; S2. operate the lifting mechanism to drive the gift box to move upward in the vertical direction so that the first surface of the gift box is exposed to the bottom of the inkjet printing mechanism through the notch on the upper wall of the body; S3. The inkjet printing template is disposed between the inkjet printing mechanism and the gift box, the inkjet printing mechanism is started, ink is sprayed onto the first surface of the gift box, and a pattern is formed on the first surface of the gift box through the inkjet printing template; S4. Operate the lifting mechanism to drive the gift box to move downward to the inside of the body, and then start the flip mechanism to flip the gift box so that the second surface of the gift box faces upward; S5. Repeat steps S2 to S3, and spray a pattern on the second surface of the gift box through the coordinated operation of the lifting mechanism and the spray painting mechanism; S6. Similarly, the gift box is flipped multiple times by the flipping mechanism, and the lifting mechanism and the spray painting mechanism are coordinated to complete the spray painting on all surfaces of the gift box in sequence.

[0016] One or more technical solutions provided in this application have at least the following technical effects or advantages: The present invention provides a omnidirectional spray painting device and method for gift boxes. Through multiple flipping of the flip mechanism and up and down movement of the lifting mechanism, spray painting on multiple surfaces of the gift box can be achieved in sequence until the omnidirectional spray painting of the gift box is completed. The flip mechanism can use a mechanical clamping or rotating platform structure to achieve the flipping of the gift box, and the lifting mechanism can use a cylinder, an electric push rod, or a guide rail slider to achieve the lifting of the gift box. The specific structure can be selected according to actual needs.

[0017] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein: Figure 1 A schematic diagram of the three-dimensional structure of a omnidirectional spray painting device for a gift box according to an embodiment of the present invention is shown; Figure 2 A partial cross-sectional structural schematic diagram of a gift box omnidirectional spray painting device according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of an exploded structure excluding a body of a gift box omnidirectional inkjet printing device according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the three-dimensional structure of a flip mechanism of the omnidirectional inkjet printing device for gift boxes according to an embodiment of the present invention from a first viewing angle is shown; Figure 5A schematic diagram of the three-dimensional structure of the omnidirectional spray painting device for a gift box according to an embodiment of the present invention from a second viewing angle is shown; Figure 6 It shows a schematic cross-sectional structure diagram of a first clamping assembly of a gift box omnidirectional inkjet printing device according to an embodiment of the present invention; Figure 7 A schematic diagram of the three-dimensional structure of the lifting mechanism of the omnidirectional inkjet printing device for gift boxes according to an embodiment of the present invention is shown; Figure 8 A schematic diagram showing the connection structure of a cover plate and a mounting assembly of a gift box omnidirectional inkjet printing device according to an embodiment of the present invention is shown; Fig. 9 A schematic structural diagram of a combination of four inkjet components of a omnidirectional inkjet printing device for a gift box according to an embodiment of the present invention is shown; Fig.10 A schematic diagram of the three-dimensional structure of an inkjet assembly of an omnidirectional inkjet device for a gift box according to an embodiment of the present invention is shown.

[0019] Description of Reference Numerals 1-body, 2-turning mechanism, 21-base, 22-cylinder, 23-first rotating shaft, 24-mounting arm, 25-rotation drive assembly, 251-second rotating shaft, 252-mounting plate, 253-gear ring, 254-first gear, 255-first motor, 26-first clamping assembly, 261-box body, 2611-strip notch, 262-bidirectional screw, 263-first guide shaft, 264-second motor, 265-clamping plate, 3-lifting mechanism, 31-guide rail, 311-connecting plate, 32-first lead screw, 33-slider, 34-lifting plate, 35-second clamping assembly, 36 -third motor, 4-spray painting mechanism, 41-support arm, 42-third rotating shaft, 43-fourth motor, 44-transmission assembly, 441-first pulley, 442-second pulley, 443-transmission belt, 444-fourth rotating shaft, 445-second gear, 446-rack, 45-inkjet assembly, 451-containing box, 452-spray gun, 453-second lead screw, 454-second guide shaft, 455-fifth motor, 456-mounting plate, 46-carrying plate, 5-spray painting template, 6-cover plate, 7-mounting assembly, 71-mounting seat, 72-locking bolt, 73-locking piece, 74-limiting part. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0022] like Figures 1 to 10 As shown, the present invention provides a gift box omnidirectional inkjet printing device, which includes: a body 1, a turning mechanism 2, a lifting mechanism 3, an inkjet printing mechanism 4 and an inkjet printing template 5.

[0023] The body 1 is the main structure of the device, and a notch is provided on its upper wall for a gift box to pass through. The size and shape of the notch are adapted to the gift box to be sprayed, so as to allow the gift box to pass through in the vertical direction. The flipping mechanism 2 and the lifting mechanism 3 are both arranged inside the body 1, wherein the flipping mechanism 2 is used to flip the gift box to change the orientation of the gift box so that different surfaces of the gift box are sequentially facing the spraying mechanism 4; the lifting mechanism 3 is used to drive the gift box to move in the vertical direction to adjust the position of the gift box through the notch on the upper wall of the body 1. The spraying mechanism 4 is arranged above or to the side of the body 1, and is used to spray ink onto the surface of the gift box to form a pattern. The spraying template 5 is arranged between the spraying mechanism 4 and the gift box, and the ink sprayed by the spraying mechanism 4 forms a predetermined pattern on the surface of the gift box through the hollow area of ​​the spraying template 5.

[0024] When using the device, the working process is as follows: first, place the gift box to be sprayed on the bearing component of the lifting mechanism 3. Then, start the lifting mechanism 3, which drives the gift box to move upward in the vertical direction, so that the gift box passes through the notch in the upper wall of the machine body 1, and the first side of the gift box is exposed to the spray range of the spray mechanism 4. Then, place the spray template 5 between the spray mechanism 4 and the gift box, start the spray mechanism 4 to spray ink, and the ink adheres to the surface of the first side of the gift box through the pattern area of ​​the spray template 5, thereby completing the spray painting of the first side.

[0025] After the first side is sprayed, the lifting mechanism 3 drives the gift box to move downward in the vertical direction, so that the gift box returns to the inside of the machine body 1. When the gift box moves down to the predetermined position, the flipping mechanism 2 is activated to flip the gift box 90 degrees, so that the second side of the gift box faces the direction of the spraying mechanism 4. After the flipping is completed, the lifting mechanism 3 drives the gift box to move upward again, so that the second side of the gift box is exposed to the spraying range of the spraying mechanism 4 through the gap in the upper wall of the machine body 1. Subsequently, the above-mentioned spraying steps are repeated, that is, the spraying template 5 is placed between the spraying mechanism 4 and the gift box, and the spraying mechanism 4 is used to spray ink, so as to complete the spraying of the second side of the gift box.

[0026] By analogy, through multiple flipping of the flipping mechanism 2 and the up and down movement of the lifting mechanism 3, multiple surfaces of the gift box can be sprayed in sequence until the gift box is sprayed in all directions. The flipping mechanism 2 can use a mechanical clamping or rotating platform structure to flip the gift box, and the lifting mechanism 3 can use a cylinder, an electric push rod, or a guide rail slider to lift the gift box. The specific structure can be selected according to actual needs.

[0027] In this embodiment, through the cooperation of the lifting mechanism 3 and the flipping mechanism 2, the movement and flipping process of the gift box is automatically completed by the device, and the template replacement and ink injection during the printing process can also be adjusted as needed to adapt to gift boxes of different sizes or shapes and different pattern designs.

[0028] In this embodiment, the flip mechanism 2 includes a base 21, a cylinder 22, a first rotating shaft 23, a mounting arm 24, a rotation drive assembly 25 and a first clamping assembly 26. The base 21 is fixedly installed inside the body 1 as a supporting base of the flip mechanism 2. The mounting arm 24 is L-shaped, and one end of the mounting arm 24 is rotatably connected to the base 21 through the first rotating shaft 23, so that the mounting arm 24 can rotate around the axis of the first rotating shaft 23. One end of the cylinder 22 is rotatably connected to the base 21, and the other end is connected to the middle part of the mounting arm 24 or a position close to the rotating end. When the output end of the cylinder 22 is extended, the mounting arm 24 can be pushed to rotate 90 degrees around the axis of the first rotating shaft 23, thereby changing the posture of the mounting arm 24. The rotation drive assembly 25 is installed at the other end of the mounting arm 24 and connected to the first clamping assembly 26. The first clamping assembly 26 is used to clamp the gift box, and the rotation drive assembly 25 is used to drive the first clamping assembly 26 to rotate around its own axis.

[0029] The working process of the flip mechanism 2 is as follows: First, the first clamping assembly 26 clamps the gift box to be sprayed, so that the gift box is firmly fixed. Then, the rotation drive assembly 25 drives the first clamping assembly 26 to rotate around its own axis, rotating 90 degrees each time to achieve the flipping of the gift box in the horizontal plane. Since the square gift box has six surfaces, the four sides of the gift box can be turned upward in sequence only by the rotation of the rotation drive assembly 25, but it cannot be turned over to the top and bottom surfaces. To solve this problem, the cylinder 22 is activated, and its output end extends to push the mounting arm 24 to rotate 90 degrees around the first rotating shaft 23. At this time, the mounting arm 24 drives the rotation drive assembly 25 and the first clamping assembly 26 to rotate 90 degrees synchronously, so that the top or bottom surface of the gift box originally facing the side is turned up. Subsequently, the rotation drive assembly 25 can drive the first clamping assembly 26 to rotate again to adjust the orientation of the gift box, ensuring that all six surfaces of the gift box can be exposed to the spray range of the spray painting mechanism 4 in sequence through multiple flips.

[0030] In this embodiment, the first clamping assembly 26 can be a mechanical clamp, a vacuum suction cup or other clamping structure suitable for fixing the gift box; the rotation drive assembly 25 can be a motor, a gear transmission mechanism or other rotation drive device; the cylinder 22 can be a pneumatic cylinder or a hydraulic cylinder, and its specific model and parameters can be selected according to the size and weight of the gift box. Through the synergistic effect of the cylinder 22 and the rotation drive assembly 25, the flipping mechanism 2 can realize the flipping of the gift box in multiple directions, so that the six surfaces of the gift box can be adjusted to the upward position, and cooperate with the lifting mechanism 3 and the spray painting mechanism 4 to complete the all-round spray painting of the gift box.

[0031] In this embodiment, the rotation drive assembly 25 includes a second rotating shaft 251, a mounting plate 252, a gear ring 253, a first gear 254 and a first motor 255. One end of the second rotating shaft 251 is rotatably connected to the mounting arm 24, so that the second rotating shaft 251 can rotate relative to the mounting arm 24 around its axis. The mounting plate 252 is rotatably connected to the other end of the second rotating shaft 251 and can rotate synchronously with the second rotating shaft 251. The gear ring 253 is fixedly mounted on the outer periphery or side of the mounting plate 252 and forms an integral structure with the mounting plate 252. The first motor 255 is fixedly mounted on the mounting arm 24, and its output end is connected to the first gear 254 directly or through a transmission mechanism. The first gear 254 is meshed and connected with the gear ring 253 to form a gear transmission structure. The first clamping assembly 26 is fixedly connected to the surface or edge position of the mounting plate 252 and rotates with the mounting plate 252.

[0032] The working process of the rotation drive assembly 25 is as follows: when the first motor 255 is started, its output end drives the first gear 254 to rotate. The rotation of the first gear 254 drives the ring gear 253 to rotate around its central axis through the meshing action with the ring gear 253. Since the ring gear 253 is fixedly connected to the mounting disk 252, the rotation of the ring gear 253 further drives the mounting disk 252 to rotate around the axis of the second rotating shaft 251. The rotation of the mounting disk 252 drives the first clamping assembly 26 fixedly connected thereto to rotate synchronously, thereby realizing the rotation drive of the first clamping assembly 26. By controlling the rotation direction and angle of the first motor 255, the rotation angle of the first clamping assembly 26 can be accurately adjusted, for example, rotating 90 degrees each time to meet the needs of flipping the gift box.

[0033] In this embodiment, the first motor 255 can be a stepper motor or a servo motor to achieve precise control of the rotation angle; the gear ratio of the first gear 254 and the ring gear 253 can be designed according to the required speed and torque; the second shaft 251 can be rotatably connected to the mounting arm 24 through a bearing or a similar structure to reduce friction and improve rotational stability.

[0034] In this embodiment, the first clamping assembly 26 includes a box body 261, a bidirectional screw 262, two first guide shafts 263, a second motor 264 and two clamping plates 265. The box body 261 is the main structure of the first clamping assembly 26, and is fixedly connected to the mounting plate 252. The bidirectional screw 262 is rotatably mounted inside the box body 261 through a bearing or other rotating support structure, and its axis direction is consistent with the length direction of the box body 261. One end of the bidirectional screw 262 is connected to the output end of the second motor 264, and the second motor 264 is fixedly mounted on one side of the box body 261 or on the mounting plate 252. The two first guide shafts 263 are fixedly mounted inside the box body 261 parallel to the bidirectional screw 262, and are respectively located on both sides of the bidirectional screw 262. A strip-shaped notch 2611 is opened on the side wall of the box body 261, and the strip-shaped notch 2611 extends along the axial direction of the bidirectional screw 262. The two clamping plates 265 are respectively threadedly connected to the forward thread segment and the reverse thread segment of the bidirectional screw 262, and a portion of the structure of each clamping plate 265 passes through the strip-shaped notch 2611 and slidably cooperates with the inner wall of the strip-shaped notch 2611. The two first guide shafts 263 respectively pass through the guide holes on the two clamping plates 265 to form a slidable connection with the clamping plates 265.

[0035] The working process of the first clamping assembly 26 is as follows: when the gift box needs to be clamped, the second motor 264 starts and drives the bidirectional screw 262 to rotate in one direction. Since the bidirectional screw 262 has two sections of forward thread and reverse thread, the two clamping plates 265 threadedly connected thereto move in opposite directions when the bidirectional screw 262 rotates, that is, approach each other. In this process, the two first guide shafts 263 limit the movement trajectory of the clamping plates 265 by sliding with the clamping plates 265, so that they slide stably along the axial direction of the bidirectional screw 262, and at the same time, the clamping plates 265 gradually approach the part extending inward through the strip notch 2611 until they contact and clamp the side of the gift box. When the gift box needs to be released, the second motor 264 drives the bidirectional screw 262 to rotate in opposite directions, so that the two clamping plates 265 move away from each other and release the clamping of the gift box. The moving range of the clamping plates 265 is limited by the length of the strip notch 2611 to ensure the safety and stability of the clamping action.

[0036] In this embodiment, the second motor 264 can be a stepper motor or a DC motor to achieve precise control of the rotation of the bidirectional screw 262; the inner surface of the clamping plate 265 can be provided with a rubber pad or a flexible material to enhance the clamping force and avoid damaging the surface of the gift box; the number and position of the first guide shaft 263 can be adjusted according to the clamping stability requirements.

[0037] In this embodiment, the lifting mechanism 3 includes two guide rails 31, a first lead screw 32, a slider 33, a lifting plate 34, a second clamping assembly 35 and a third motor 36. The two guide rails 31 are vertically fixedly installed inside the body 1 as the guide structure of the lifting mechanism 3, and their upper ends are fixedly connected to each other through a connecting plate 311 to enhance the overall stability. The first lead screw 32 is rotatably arranged between the two guide rails 31 through a bearing or other rotating support structure, and its axis is parallel to the extension direction of the guide rails 31. The external thread of the first lead screw 32 is threadedly connected with a nut or an internal thread structure on the lifting plate 34. The upper end of the first lead screw 32 is directly or through a coupling connected to the output end of the third motor 36, and the third motor 36 is fixedly installed on the connecting plate 311 or the upper part of the body 1. The slider 33 is slidably connected to the side or groove of the two guide rails 31, and the lifting plate 34 is fixedly connected to the slider 33, so that a stable sliding fit is formed with the guide rail 31 through the slider 33. The second clamping assembly 35 is fixedly mounted on the upper surface of the lifting plate 34 and is used to carry and fix the gift box to be sprayed.

[0038] The working process of the lifting mechanism 3 is as follows: when the third motor 36 is started, its output end drives the first screw 32 to rotate around its axis. Since the first screw 32 is threadedly connected to the lifting plate 34, the rotation of the first screw 32 is converted into the lifting movement of the lifting plate 34 along the axial direction of the first screw 32. In this process, the lifting plate 34 slides up and down along the two guide rails 31 through the fixedly connected slider 33, and the guide rails 31 provide guidance and support for the movement of the lifting plate 34 to ensure the stability and verticality of its lifting trajectory. When the third motor 36 rotates forward, the lifting plate 34 drives the second clamping assembly 35 and the fixed gift box to move upward, so that the gift box is exposed to the spray painting position through the gap in the upper wall of the body 1; when the third motor 36 rotates reversely, the lifting plate 34 drives the second clamping assembly 35 and the gift box to move downward and return to the inside of the body 1.

[0039] In this embodiment, the third motor 36 can be a servo motor or a stepper motor to achieve precise control of the rotation of the first lead screw 32; the guide rail 31 can be a linear guide rail or a cylindrical guide rail, and a lubricating layer can be provided on its surface to reduce sliding friction; the matching quantity and position of the slider 33 and the guide rail 31 can be adjusted according to the lifting load and stability requirements. The provision of two guide rails 31 enhances the smoothness of the movement of the lifting plate 34 and the ability to resist off-center load.

[0040] In this embodiment, a cover plate 6 and four mounting components 7 are also included. The cover plate 6 is a flat structure, on which a notch matching the shape of the gift box is opened, and the size of the notch is slightly larger than the cross-sectional size of the gift box to allow the gift box to move up and down through the notch. Each of the mounting components 7 includes a mounting seat 71, a locking bolt 72, a locking member 73 and a limiting portion 74. The mounting seat 71 is fixedly connected to the top wall of the body 1 as a supporting base for the mounting component 7. The limiting portion 74 is fixedly installed above or on the side of the mounting seat 71 to form an integral structure with the mounting seat 71. The screw portion of the locking bolt 72 passes through the locking member 73 in turn and is threadedly connected to the threaded hole on the mounting seat 71, and the locking member 73 is sleeved on the locking bolt 72 and matched with the thread of the locking bolt 72. The locking member 73 is slidably connected to the limiting portion 74, and the limiting portion 74 limits the rotation of the locking member 73 around the axis of the locking bolt 72. A clamping space is formed between the lower surface of the locking member 73 and the upper surface of the mounting seat 71 for accommodating and fixing the edge of the covering plate 6 .

[0041] The installation and removal process of the cover plate 6 is as follows: according to the actual size of the gift box to be sprayed, select the cover plate 6 with the corresponding notch size, and place its edge in the clamping space between the mounting seat 71 of the four mounting components 7 and the locking member 73. Then, rotate the locking bolt 72 in the opposite direction so that the locking bolt 72 drives the locking member 73 to approach the mounting seat 71 along the axial direction of the locking bolt 72 through the thread action. In this process, the limiting portion 74 prevents the locking member 73 from rotating with the locking bolt 72 by sliding cooperation with the locking member 73 until the lower surface of the locking member 73 tightly presses the edge of the cover plate 6, and fixes the cover plate 6 to the top wall of the machine body 1. When it is necessary to remove the cover plate 6, rotate the locking bolt 72 in the forward direction to move the locking member 73 away from the mounting seat 71 along the axial direction of the locking bolt 72 to release the clamping pressure on the cover plate 6. Then, the cover plate 6 can be taken out of the mounting assembly 7 to replace the cover plate 6 with a different notch size or to clean it.

[0042] In this embodiment, the cover plate 6 is used to cover the gap in the top wall of the body 1 to reduce the possibility of ink entering the interior of the body 1 during the inkjet printing process; the cover plate 6 can be flexibly replaced according to the size of the gift box, and the shape of the gap can be rectangular, circular or other shapes that are compatible with the shape of the gift box; the locking member 73 can adopt a nut or a structure with a flat clamping portion, and its sliding connection with the limiting portion 74 can be achieved through a slide groove or a guide rod; the number of the mounting components 7 can be adjusted according to the size of the cover plate 6 and the fixing stability requirements.

[0043] In this embodiment, the inkjet printing mechanism 4 includes two arms 41, a third rotating shaft 42, a fourth motor 43, a transmission assembly 44, an inkjet assembly 45 and a carrier plate 46. The two arms 41 are vertically or obliquely fixedly connected to the top wall of the machine body 1, serving as a supporting structure of the inkjet printing mechanism 4. The carrier plate 46 is installed between the two arms 41 through a sliding structure, and can slide along the extension direction of the arms 41. The third rotating shaft 42 is rotatably installed between the two arms 41 through a bearing or other rotating support, and its axis is perpendicular to the sliding direction of the arms 41. The fourth motor 43 is fixedly installed on one of the arms 41, and its output end is connected to the third rotating shaft 42 through a direct connection or a coupling. The transmission assembly 44 is respectively connected to the third rotating shaft 42 and the carrier plate 46, and is used to convert the rotational motion of the third rotating shaft 42 into the sliding motion of the carrier plate 46. There are at least two inkjet assemblies 45 , which are all fixedly mounted on the outer circumference of the third rotating shaft 42 and rotate synchronously with the third rotating shaft 42 .

[0044] In this embodiment, the number of the inkjet components 45 is preferably four, and each of the inkjet components 45 is filled with paints of different colors, such as red, yellow, blue and black, to meet the needs of multi-color spray painting. The working process of the spray painting mechanism 4 is as follows: when the fourth motor 43 is started, its output end drives the third rotating shaft 42 to rotate around its axis. The rotation of the third rotating shaft 42 directly drives the multiple inkjet components 45 fixed thereon to rotate synchronously, and by adjusting the rotation angle, the inkjet components 45 of the target color can be switched to the spray painting position facing the gift box. At the same time, the rotation of the third rotating shaft 42 transmits power to the bearing plate 46 through the transmission assembly 44, so that the bearing plate 46 moves along the sliding path of the support arm 41. The bearing plate 46 carries the spray painting template 5, and its sliding drives the spray painting template 5 to move synchronously, thereby realizing the switching of the spray painting template 5 with different patterns. Finally, through the cooperation of the inkjet component 45 and the spray painting template 5, the spray painting operation on the surface of the gift box is completed.

[0045] In this embodiment, the transmission assembly 44 may include a gear, belt or chain transmission mechanism, for example, sliding drive is achieved by meshing a driving gear fixed on the third rotating shaft 42 with a rack on the supporting plate 46; the sliding connection between the supporting plate 46 and the support arm 41 can be achieved through a slide rail or roller structure to ensure smooth movement; the fourth motor 43 can use a stepper motor or a servo motor to accurately control the rotation angle and speed of the third rotating shaft 42; the inkjet assembly 45 can be a nozzle or spray gun structure, and its spraying direction is toward the notch on the top wall of the body 1.

[0046] In this embodiment, the transmission assembly 44 includes a first pulley 441, a second pulley 442, a transmission belt 443, a fourth rotating shaft 444, a second gear 445 and a rack 446. The first pulley 441 is fixedly mounted on the outer periphery of the third rotating shaft 42 and rotates synchronously with the third rotating shaft 42. The fourth rotating shaft 444 is rotatably mounted between the two supporting arms 41 through a bearing or other rotating support member, and its axis is parallel to the axis of the third rotating shaft 42. The second pulley 442 is fixedly mounted on the outer periphery of the fourth rotating shaft 444 and forms an integral rotating structure with the fourth rotating shaft 444. The transmission belt 443 is wound around the outer peripheries of the first pulley 441 and the second pulley 442 to form a belt transmission mechanism for transmitting the rotational motion of the first pulley 441 to the second pulley 442. The second gear 445 is fixedly connected to one end or the middle of the fourth rotating shaft 444 and rotates synchronously with the fourth rotating shaft 444. The rack 446 is fixedly mounted on the side or bottom of the supporting plate 46 , and its tooth surface is meshed with the second gear 445 , thereby converting the rotational motion of the second gear 445 into the linear motion of the rack 446 .

[0047] The working process of the transmission assembly 44 is as follows: when the third rotating shaft 42 is driven by the fourth motor 43 to rotate, the first pulley 441 fixed thereon rotates accordingly. The first pulley 441 drives the second pulley 442 to rotate around the axis of the fourth rotating shaft 444 through the transmission belt 443. The rotation of the second pulley 442 further drives the fourth rotating shaft 444 to rotate, so that the second gear 445 fixed on the fourth rotating shaft 444 rotates synchronously. The second gear 445 meshes with the rack 446, and converts the rotational motion into the linear movement of the rack 446 along the direction of the support arm 41 through the gear-rack transmission. Since the rack 446 is fixedly connected to the bearing plate 46, the movement of the rack 446 drives the bearing plate 46 to move synchronously along the sliding path of the support arm 41, thereby realizing the driving of the bearing plate 46. The bearing plate 46 carries the inkjet template 5, and its movement causes the position of the inkjet template 5 to change, so as to switch different inkjet patterns.

[0048] In this embodiment, the inkjet template 5 is a rectangular structure, on which at least two different template graphics are provided, such as lines, geometric shapes or other patterns, and the final inkjet effect is achieved by sequentially spraying or superimposing multiple graphics. The driving of the transmission component 44 is synchronized with the rotation of the third rotating shaft 42. When the third rotating shaft 42 rotates to switch the color of the inkjet component 45, the carrier plate 46 is driven by the transmission component 44 to simultaneously move the inkjet template 5 to achieve coordinated switching of colors and patterns. The transmission belt 443 can be a synchronous belt or a flat belt, and its tension can be optimized by adjusting the distance between the first pulley 441 and the second pulley 442; the pitch and module of the second gear 445 and the rack 446 can be designed according to the required moving speed and accuracy; the sliding path length of the carrier plate 46 should be sufficient to cover the positions of all template graphics on the inkjet template 5.

[0049] In this embodiment, the inkjet assembly 45 includes a container box 451, a spray gun 452, a second lead screw 453, a second guide shaft 454, a fifth motor 455 and a mounting plate 456. The mounting plate 456 is fixedly connected to the outer periphery of the third rotating shaft 42 and rotates synchronously with the third rotating shaft 42. The second lead screw 453 is rotatably mounted on the mounting plate 456 through a bearing or other rotating support, and its axis is parallel to the length direction of the mounting plate 456. The fifth motor 455 is fixedly mounted on one end of the mounting plate 456, and its output end is connected to one end of the second lead screw 453 through a direct connection or a coupling. The second guide shaft 454 is fixedly mounted on the mounting plate 456, and its axis is parallel to the second lead screw 453 and is located on the side of the second lead screw 453. The container box 451 is threadedly connected to the second lead screw 453 through a nut or an internal thread structure, and is slidably connected to the second guide shaft 454 through a guide hole or a sliding sleeve. The spray gun 452 is fixedly installed on the bottom or side of the container box 451 , with its nozzle facing the spraying position of the gift box and connected to the paint storage space inside the container box 451 .

[0050] The working process of the inkjet assembly 45 is as follows: when the fifth motor 455 is started, its output end drives the second lead screw 453 to rotate around its axis. Since the container box 451 is threadedly connected to the second lead screw 453, the rotation of the second lead screw 453 causes the container box 451 to move along the axial direction of the second lead screw 453. In this process, the second guide shaft 454 provides guidance for the movement of the container box 451 by sliding with the container box 451, ensuring the linearity and stability of its motion trajectory. The movement of the container box 451 drives the spray gun 452 fixed thereon to move linearly synchronously, so that the nozzle of the spray gun 452 scans the surface of the gift box along a predetermined path. The container box 451 contains paint, and the spray gun 452 sprays the paint from the nozzle through the internal ink supply system to complete the inkjet operation.

[0051] In this embodiment, the container box 451 can be designed as a closed container, which is provided with an ink supply pipeline connected to the spray gun 452; the spray gun 452 can adopt a pneumatic spray gun or an electric nozzle structure, and its spray pressure and flow rate can be adjusted according to the type of paint; the fifth motor 455 can use a stepper motor or a servo motor to accurately control the rotation speed and direction of the second lead screw 453; the number of the second guide shafts 454 can be adjusted according to the weight and mobile stability requirements of the container box 451, for example, it can be set to a single or multiple shafts to further improve the running smoothness.

[0052] In a second aspect of the present invention, a method for spraying omnidirectionally on a gift box is provided; The method comprises the following steps: S1. Place the gift box to be sprayed on the lifting mechanism 3; S2. Operate the lifting mechanism 3 to drive the gift box to move upward in the vertical direction so that the first surface of the gift box is exposed to the bottom of the inkjet printing mechanism 4 through the notch on the upper wall of the body 1; S3. The inkjet template 5 is disposed between the inkjet mechanism 4 and the gift box, the inkjet mechanism 4 is started, ink is sprayed onto the first surface of the gift box, and a pattern is formed on the first surface of the gift box through the inkjet template 5; S4. Operate the lifting mechanism 3 to drive the gift box to move downward to the inside of the body 1, and then start the flip mechanism 2 to flip the gift box so that the second surface of the gift box faces upward; S5. Repeat steps S2 to S3, and spray a pattern on the second surface of the gift box through the coordinated operation of the lifting mechanism 3 and the spray painting mechanism 4; S6. Similarly, the gift box is turned over multiple times by the turning mechanism 2, and the lifting mechanism 3 and the spray painting mechanism 4 are coordinated to complete the spray painting on all surfaces of the gift box in sequence.

[0053] The method realizes the movement of the gift box in the vertical direction and the automatic flipping of multiple angles through the coordinated operation of the lifting mechanism 3 and the flipping mechanism 2, replaces the traditional manual flipping operation, and significantly improves the automation level and production efficiency of the inkjet process. In the method, through multiple flipping and lifting actions, it is ensured that each surface of the gift box can be exposed to the spraying range of the spray painting mechanism 4. Combined with the use of the spray painting template 5, a uniform and consistent pattern can be formed on all surfaces of the gift box to meet the needs of all-round decoration. The gift box only needs to be initially placed on the lifting mechanism 3, and the subsequent movement, flipping and spray painting steps are automatically completed by the device. The operation process is simple, which reduces the dependence on the skills of the operator and improves the consistency and stability of production. The spray painting template 5 is used to accurately control the spraying area of ​​the ink, avoids the problem of ink spillage or uneven spraying, ensures the clarity and aesthetics of the pattern on the surface of the gift box, and is suitable for diversified design requirements. The method can adapt to gift boxes of different sizes and shapes by adjusting the number of flips and the pattern of the spray painting template 5, has strong flexibility and versatility, and is easy to promote and apply in a variety of production scenarios.

[0054] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gift box omnidirectional painting device, characterized in that: include: A machine body (1), a turning mechanism (2), a lifting mechanism (3), a spray painting mechanism (4) and a spray painting template (5); The upper wall of the body (1) is provided with a notch for the gift box to pass through; The turning mechanism (2) and the lifting mechanism (3) are both arranged inside the body (1), wherein the turning mechanism (2) is used to turn over the gift box, and the lifting mechanism (3) is used to drive the gift box to move in a vertical direction so as to pass through the notch in the upper wall of the body (1); The inkjet printing mechanism (4) is used to spray ink onto the surface of the gift box; The inkjet printing template (5) is arranged between the inkjet printing mechanism (4) and the gift box, and the ink sprayed by the inkjet printing mechanism (4) forms a pattern on the surface of the gift box through the inkjet printing template (5).

2. The omnidirectional inkjet printing device for gift boxes according to claim 1, characterized in that: The flip mechanism (2) comprises a base (21), a cylinder (22), a first rotating shaft (23), a mounting arm (24), a rotation drive assembly (25) and a first clamping assembly (26); the base (21) is fixedly mounted inside the machine body (1); the mounting arm (24) is L-shaped; the (24) is rotationally connected to the base (21) via the first rotating shaft (23); one end of the cylinder (22) is rotationally connected to the base (21); the other end of the cylinder (22) is rotationally connected to the base (21); One end is connected to the mounting arm (24), and the output end of the cylinder (22) extends out to drive the mounting arm (24) to rotate 90 degrees relative to the axis of the first rotating shaft (23); the rotation drive component (25) is connected to the mounting arm (24), and the first clamping component (26) is connected to the rotation drive component (25). The first clamping component (26) is used to clamp the gift box, and the rotation drive component (25) is used to drive the first clamping component (26) to rotate.

3. The omnidirectional spray painting device for gift boxes according to claim 2, characterized in that: The rotary drive assembly (25) comprises a second rotating shaft (251), a mounting plate (252), a gear ring (253), a first gear (254) and a first motor (255); the second rotating shaft (251) rotates with the mounting arm (24), the mounting plate (252) is rotationally connected with the second rotating shaft (251), the gear ring (253) is fixedly connected with the mounting plate (252), the first motor (255) is fixedly connected with the mounting arm (24), an output end of the first motor (255) is connected with the first gear (254), the first gear (254) is meshingly connected with the gear ring (253), and the first clamping assembly (26) is fixedly connected with the mounting plate (252).

4. The omnidirectional inkjet printing device for gift boxes according to claim 2 or 3, characterized in that: The first clamping assembly (26) comprises a box body (261), a bidirectional screw (262), two first guide shafts (263), a second motor (264) and two clamping plates (265); the bidirectional screw (262) is rotatably mounted inside the box body (261), one end of the bidirectional screw (262) is connected to the output end of the second motor (264), the two first guide shafts (263) are fixedly mounted inside the box body (261), and the box body A strip-shaped notch (2611) is provided on (261), the bidirectional screw (262) passes through the two clamping plates (265), and the two clamping plates (265) are threadedly connected to the bidirectional screw (262), the two clamping plates (265) pass through the strip-shaped notch (2611) and are slidably connected to the strip-shaped notch (2611), and the two first guide shafts (263) pass through the clamping plates (265) and are slidably connected to the clamping plates (265).

5. The omnidirectional inkjet printing device for gift boxes according to claim 1, characterized in that: The lifting mechanism (3) comprises two guide rails (31), a first lead screw (32), a slider (33), a lifting plate (34), a second clamping assembly (35) and a third motor (36); the two guide rails (31) are fixedly mounted inside the machine body (1), the upper ends of the two guide rails (31) are connected via a connecting plate (311), the first lead screw (32) is rotatably arranged between the two guide rails (31), the first lead screw (32) is threadedly connected to the lifting plate (34), the upper end of the first lead screw (32) is connected to the third motor (36), the slider (33) is slidably connected to the two guide rails (31), the lifting plate (34) is fixedly connected to the slider (33), and the second clamping assembly (35) is fixedly connected to the lifting plate (34).

6. The omnidirectional inkjet printing device for gift boxes according to claim 1, characterized in that: The invention also comprises a cover plate (6) and four mounting components (7); a notch matching the gift box is formed on the cover plate (6); the mounting component (7) comprises a mounting seat (71), a locking bolt (72), a locking member (73) and a limiting portion (74); the mounting seat (71) is fixedly connected to the top wall of the body (1); the limiting portion (74) is fixedly connected to the mounting seat (71); the locking bolt (72) passes through the locking member (73) and is threadedly connected to the mounting seat (71); the locking member (73) is threadedly connected to the locking bolt (72); the locking member (73) is slidably connected to the limiting portion (74); and a clamping space for the cover plate (6) is formed between the locking member (73) and the mounting seat (71).

7. The omnidirectional spray painting device for gift boxes according to claim 1, characterized in that: The inkjet printing mechanism (4) comprises two supporting arms (41), a third rotating shaft (42), a fourth motor (43), a transmission assembly (44), an inkjet assembly (45) and a carrying plate (46); the two supporting arms (41) are fixedly connected to the top wall of the machine body (1); the carrying plate (46) is slidably mounted between the two supporting arms (41); the third rotating shaft (42) is rotatably mounted between the two supporting arms (41); the fourth motor (43) is mounted on the supporting arms (41); an output end of the fourth motor (43) is connected to the third rotating shaft (42); the transmission assembly (44) is connected to the third rotating shaft (42); the transmission assembly (44) is also connected to the carrying plate (46); the number of the inkjet assemblies (45) is at least two; and the inkjet assemblies (45) are fixedly connected to the third rotating shaft (42).

8. The omnidirectional spray painting device for gift boxes according to claim 7, characterized in that: The transmission assembly (44) comprises a first pulley (441), a second pulley (442), a transmission belt (443), a fourth rotating shaft (444), a second gear (445) and a rack (446); the first pulley (441) is fixedly connected to the third rotating shaft (42), the fourth rotating shaft (444) is rotatably mounted on the support arm (41), the second pulley (442) is fixedly mounted on the fourth rotating shaft (444), the transmission belt (443) passes around the first pulley (441) and the second pulley (442), the second gear (445) is connected to the fourth rotating shaft (444), the rack (446) is connected to the bearing plate (46), and the second gear (445) is meshingly connected to the rack (446).

9. The omnidirectional spray painting device for gift boxes according to claim 8, characterized in that: The inkjet assembly (45) comprises a container box (451), a spray gun (452), a second lead screw (453), a second guide shaft (454), a fifth motor (455) and a mounting plate (456), wherein the mounting plate (456) is fixedly connected to the third rotating shaft (42), the second lead screw (453) is rotatably connected to the mounting plate (456), an output end of the fifth motor (455) is connected to the second lead screw (453), the second guide shaft (454) is fixedly connected to the mounting plate (456), the container box (451) is slidably connected to the second guide shaft (454), the container box (451) is threadedly connected to the second lead screw (453), and the spray gun (452) is connected to the container box (451).

10. A method for spraying omnidirectional painting on a gift box, characterized in that: The implementation of the method relies on the gift box omnidirectional spray painting device according to any one of claims 1 to 9, comprising the following steps: S1. Place the gift box to be sprayed on the lifting mechanism (3); S2. operating the lifting mechanism (3) to drive the gift box to move upward in the vertical direction, so that the first surface of the gift box is exposed to the bottom of the inkjet printing mechanism (4) through the notch in the upper wall of the body (1); S3. The inkjet printing template (5) is arranged between the inkjet printing mechanism (4) and the gift box, and the inkjet printing mechanism (4) is started to spray ink onto the first surface of the gift box, so that a pattern is formed on the first surface of the gift box through the inkjet printing template (5); S4. operating the lifting mechanism (3) to drive the gift box to move downward into the interior of the machine body (1), and then starting the flipping mechanism (2) to flip the gift box so that the second surface of the gift box faces upward; S5. Repeat steps S2 to S3, and spray a pattern on the second surface of the gift box through the coordinated operation of the lifting mechanism (3) and the spray painting mechanism (4); S6. Similarly, the gift box is flipped multiple times by the flipping mechanism (2), and the actions of the lifting mechanism (3) and the spray painting mechanism (4) are coordinated to complete the spray painting of all surfaces of the gift box in sequence.

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