Precise-positioning multi-color overprinting equipment for packaging cartons

Abstract

The utility model discloses a packaging carton multicolor overprinting device with accurate positioning, which comprises a frame and a multicolor printing machine, two groups of driving rollers are symmetrically and rotatably connected in the frame and are connected with each other through a driving belt, the multicolor printing machine is installed on the end face of one side of the frame, and the end face of a sliding block is fixedly connected with a fixing plate. Electric telescopic rods are fixedly connected to the ends of the fixing plates, the telescopic ends of the electric telescopic rods penetrate through the fixing plates to be connected with sliding plates, suction cups are circumferentially distributed on the lower end faces of the sliding plates, air pumps are arranged on the end faces of the sliding plates and communicate with the multiple sets of sliding plates, and a driving mechanism for driving the sliding blocks to move is installed in the outer frame. Non-contact type carrying of packaging paper boxes is achieved by adopting negative pressure adsorption of the suction cups and the air pump and being matched with lifting motion of the electric telescopic rods, and compared with a traditional compression roller feeding mode, extrusion friction to the surfaces of the paper boxes is eliminated, it is guaranteed that the surfaces of the paper boxes are free of scratches and damage, and the subsequent overprinting quality and the yield are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of overprinting equipment, especially precise positioning's packing carton multicolor overprinting equipment. BACKGROUND

[0002] In the production process of packing carton, multicolor overprinting technology is the key process to realize exquisite patterns and characters.

[0003] In the prior art, the traditional multicolor overprinting equipment usually adopts mechanical positioning, for example, a double-headed threaded rod drives a limiting rod to limit the packing carton, so that the transmission belt can accurately drive it to slide to the lower side of the multicolor printing machine, for example, the corrugated box multicolor printing equipment proposed in patent application No. CN220148682U. The device achieves the purpose of precise positioning by limiting the push rod during use. However, the device relies on the rotation of the compression roller to move the material to the upper side of the transmission belt during feeding. In this process, a certain pressure needs to be applied to the material, which may cause damage to the upper end surface of the material and affect the subsequent overprinting quality. Therefore, the precise positioning packing carton multicolor overprinting equipment is needed to solve the above problems. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and proposes a precise positioning packing carton multicolor overprinting equipment.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The precise positioning packing carton multicolor overprinting equipment comprises a frame and a multicolor printing machine, two groups of transmission rollers are symmetrically connected to the frame, and are connected to each other through a transmission belt, the multicolor printing machine is installed at one side end face of the frame, a bottom plate is fixedly connected to the other side of the frame, limiting frames are fixedly connected to the four corners of the bottom plate, the outer wall of the limiting frame is L-shaped, an outer frame is fixedly connected to the side wall of the frame, a sliding block horizontally slides in the outer frame, a fixed plate is fixedly connected to the end face of the sliding block, an electric telescopic rod is fixedly connected to the end of the fixed plate, a sliding plate is connected to the telescopic end of the electric telescopic rod through the fixed plate, suction cups are circumferentially distributed on the lower end face of the sliding plate, a gas pump is arranged on the end face of the sliding plate, the gas pump is communicated with multiple sliding plates, and a driving mechanism for driving the sliding block to move is installed in the outer frame.

[0007] Preferably, the driving mechanism comprises a threaded rod rotatably connected in the outer frame, the sliding block is threadedly connected to the threaded segment of the threaded rod, a limiting rod one is fixedly connected to the inner wall of the outer frame, and the sliding block is slidingly connected to the outer wall of the limiting rod one.

[0008] Preferably, two groups of side plates are fixedly connected to the end face of the frame and located between the multicolor printing machine and the bottom plate, and a double-headed threaded rod is rotatably connected between the two groups of side plates.

[0009] Preferably, the double-end threaded rod threaded segment is threaded with two groups of moving blocks, the lower end of the two groups of moving blocks is fixedly connected with a push plate, and the end face of the push plate and the end face of the transmission belt have a certain gap.

[0010] Preferably, the two groups of side plates are fixedly connected with a limiting rod two, and the two groups of moving blocks are slidingly connected to the outer wall of the limiting rod two.

[0011] Preferably, the outer wall of the outer frame is fixedly connected with a servo motor two, one group of the outer wall of the side plate is fixedly connected with a servo motor one, and the servo motor two and the servo motor one are coaxially fixedly connected with the threaded rod and the double-end threaded rod respectively.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model discloses a non-contact conveying of packaging carton is realized through the negative pressure adsorption of suction cup and air pump, and the lifting movement of electric telescopic rod is matched, compared with the traditional pressure roller feeding mode, the extrusion and friction to the surface of carton are eliminated, the surface of carton is ensured to have no scratch damage, and the quality and yield of subsequent overprint are improved.

[0014] 2. The utility model discloses a three-stage positioning work of limiting support, push board and suction cup, realizes the high-precision positioning of packaging carton, limiting support provides preliminary positioning, push board is driven to correct through double-end threaded rod, ensures that the center line of carton is accurately aligned with the printing reference line of multi-color printing machine, and the stability and consistency of multi-color overprint are improved. DRAWINGS

[0015] Figure 1 It is the structure schematic view of the packaging carton multi-color overprint equipment of accurate positioning that the utility model provides;

[0016] Figure 2 It is Figure 1 The structure schematic view of middle bottom plate, outer frame and slide plate parts.

[0017] Figure 3 It is Figure 1 The structure schematic view of middle side plate, double-end threaded rod and push board parts.

[0018] In the drawing: 1, frame;2, transmission belt;3, multi-color printing machine;4, bottom plate;5, limiting support;6, outer frame;7, threaded rod;8, limiting rod one;9, sliding block;10, fixed plate;11, electric telescopic rod;12, slide plate;13, air pump;14, suction cup;15, side plate;16, double-end threaded rod;17, limiting rod two;18, moving block;19, servo motor one;20, push plate;21, servo motor two. CONCRETE IMPLEMENTATION

[0019] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments only are a part of embodiments of the utility model, and not all embodiments.

[0020] Referring to Figures 1-3 The accurate positioning packaging carton multi-color overprint equipment, including frame 1 and multi-color printing machine 3, two groups of transmission rollers are symmetrically connected in frame 1, and are connected with each other through transmission belt 2, multi-color printing machine 3 is installed at the one side end surface of frame 1, the other side of frame 1 is fixedly connected with bottom plate 4, limit frame 5 is fixedly connected at the four corners of bottom plate 4, the outer wall of limit frame 5 is L-shaped, outer frame 6 is fixedly connected on the side wall of frame 1, sliding block 9 is horizontally slidably arranged in outer frame 6, fixed plate 10 is fixedly connected on the end surface of sliding block 9, and electric telescopic rod 11 is fixedly connected on the end of fixed plate 10, and sliding plate 12 is connected on the telescopic end of electric telescopic rod 11 through fixed plate 10, suction cups 14 are circumferentially distributed on the lower end surface of sliding plate 12, air pump 13 is arranged on the end surface of sliding plate 12, air pump 13 is communicated with multiple sliding plates 12, and driving mechanism for driving sliding block 9 to move is installed in outer frame 6;

[0021] Further, the suction cups 14 adsorb the carton by the negative pressure generated by the air pump 13, realize non-contact handling, avoid extrusion damage to the surface of the carton, thereby ensuring the subsequent overprint quality, and the limit frame 5 at the four corners of the bottom plate 4 can preliminarily limit the carton.

[0022] The driving mechanism comprises a threaded rod 7 rotatably connected in the outer frame 6, the sliding block 9 is threadedly connected on the threaded segment of the threaded rod 7, the outer wall of the limit rod one 8 is fixedly connected on the inner wall of the outer frame 6, and the sliding block 9 is slidably connected on the outer wall of the limit rod one 8;

[0023] Further, the threaded rod 7 drives the horizontal sliding of the fixed plate 10 and the external components thereof, and in cooperation with the extension and contraction of the telescopic end of the electric telescopic rod 11, the carton can be driven to the end surface of the transmission belt 2.

[0024] The end surface of the frame 1 is fixedly connected with two groups of side plates 15, and is located between the multi-color printing machine 3 and the bottom plate 4, the double-headed threaded rod 16 is rotatably connected between the two groups of side plates 15, the two groups of moving blocks 18 are threadedly connected on the threaded segment of the double-headed threaded rod 16, the push plate 20 is fixedly connected on the lower end of the two groups of moving blocks 18, and there is a certain gap between the end surface of the push plate 20 and the end surface of the transmission belt 2, the limit rod two 17 is fixedly connected between the two groups of side plates 15, and the two groups of moving blocks 18 are slidably connected on the outer wall of the limit rod two 17;

[0025] Further, on the basis of the limitation of the four groups of limit frames 5, the relative sliding of the two groups of push plates 20 can further limit the position of the carton.

[0026] The outer frame 6 is fixedly connected with a servo motor two 21, and one group of side plates 15 are fixedly connected with a servo motor one 19; the servo motor two 21 and the servo motor one 19 are coaxially fixedly connected with the threaded rod 7 and the double-headed threaded rod 16 respectively.

[0027] In the utility model, when the device is used, the operator first places the packaging paper box to be printed on the bottom plate 4, and preliminarily positions the paper box through the four groups of L-shaped limiting frames 5, so as to ensure that the paper box is in the preset initial position. Then the operator starts the servo motor two 21 to drive the threaded rod 7 to rotate, drives the sliding block 9 to horizontally slide along the limiting rod one 8 to the upper side of the paper box. Subsequently, the telescopic end of the electric telescopic rod 11 extends downward, drives the sliding plate 12 and the suction cup 14 to vertically descend until the suction cup 14 is attached to the upper surface of the paper box, and the air pump 13 is started to stably grab the paper box through negative pressure adsorption, so as to realize non-contact carrying. This process completely avoids extrusion and friction on the surface of the paper box, and ensures that there is no scratch damage.

[0028] After the adsorption is completed, the servo motor two 21 is reversely rotated to drive the sliding block 9 to horizontally slide to the upper side of the transmission belt 2, and simultaneously the electric telescopic rod 11 is retracted to stably place the paper box on the surface of the transmission belt 2. In this process, the servo motor one 19 is synchronously started to drive the double-headed threaded rod 16 to rotate, so that the two groups of moving blocks 18 slide along the limiting rod two 17 to the opposite sides, drive the push plate 20 to approach the two sides of the paper box, further correct the position of the paper box, and ensure that the center line is accurately aligned with the printing reference line of the multi-color printing machine 3.

[0029] When the paper box moves to the lower side of the multi-color printing machine 3, the servo motor one 19 stops running, and the push plate 20 remains in a fixed state to form rigid limiting of the paper box. The multi-color printing machine 3 sequentially completes printing of each color, and after completing printing of each color, the transmission belt 2 is intermittently stepped to move, and after printing is completed, the transmission belt 2 transports the finished paper box to the discharge end.

[0030] As described above, through the cooperative work of the multi-stage positioning of the limiting frame 5, the push plate 20 and the suction cup 14, the damage of the material caused by the traditional pressure roller feeding is solved, and through the accurate cooperation of the push plate 20, the alignment accuracy and stability of multi-color overprint are improved.

[0031] The above merely describes a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, and any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A precision positioned carton multi-color overprint apparatus comprising a frame (1) and a multi-color printer (3), characterized in that, Two groups of transmission rollers are symmetrically connected in the frame (1), and are connected with each other through a transmission belt (2), the multi-color printing machine (3) is installed at one side end face of the frame (1), the other side of the frame (1) is fixedly connected with a bottom plate (4), the bottom plate (4) is fixedly connected with a limiting frame (5) at four corners, the outer wall of the limiting frame (5) is L-shaped, the side wall of the frame (1) is fixedly connected with an outer frame (6), the outer frame (6) is horizontally slidably connected with a sliding block (9), the end face of the sliding block (9) is fixedly connected with a fixed plate (10), and the end of the fixed plate (10) is fixedly connected with an electric telescopic rod (11), the telescopic end of the electric telescopic rod (11) is connected with a sliding plate (12) penetrating through the fixed plate (10), the lower end face of the sliding plate (12) is circumferentially distributed with a suction cup (14), the end face of the sliding plate (12) is provided with an air pump (13), the air pump (13) is communicated with a plurality of sliding plates (12), and a driving mechanism for driving the sliding block (9) to move is installed in the outer frame (6).

2. The precision positioned carton multi-color overprint apparatus of claim 1, wherein, The driving mechanism comprises a threaded rod (7) rotatably connected in the outer frame (6), the sliding block (9) is threadedly connected on the threaded segment of the threaded rod (7), and the outer wall of the limiting rod (8) is fixedly connected with a limiting rod (8) in the outer wall of the outer frame (6).

3. The precision positioned carton multi-color overprint apparatus of claim 2, wherein, The end face of the frame (1) is fixedly connected with two groups of side plates (15), and is located between the multi-color printing machine (3) and the bottom plate (4), and the double-headed threaded rod (16) is rotatably connected between the two groups of side plates (15).

4. The precision positioned carton multi-color overprint apparatus of claim 3, wherein, The threaded segment of the double-headed threaded rod (16) is threadedly connected with two groups of moving blocks (18), and the lower end of each group of the moving blocks (18) is fixedly connected with a push plate (20), and the end face of the push plate (20) is spaced apart from the end face of the transmission belt (2).

5. The precision positioned carton multi-color overprint apparatus of claim 4, wherein, The two groups of side plates (15) are fixedly connected with a limiting rod (17) between them, and the two groups of moving blocks (18) are slidably connected to the outer wall of the limiting rod (17).

6. The precision positioned carton multi-color overprint apparatus of claim 5, wherein, The outer wall of the outer frame (6) is fixedly connected with a servo motor (21), and the outer wall of one of the side plates (15) is fixedly connected with a servo motor (19), and the servo motor (21) and the servo motor (19) are coaxially fixedly connected with the threaded rod (7) and the double-headed threaded rod (16) respectively.

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