Automatic paperboard turnover device for carton printing

Abstract

The utility model discloses a kind of paperboard automatic turnover devices for packaging box printing, comprising: cabinet;Width adjusting assembly includes the adjusting box of fixed connection in the one side of cabinet, two equidistant distribution sliding rods are fixedly connected in adjusting box inner wall two sides, two sliding rods one end sliding sleeve connection have two and be oppositely arranged adjusting block, two adjusting blocks top are respectively fixedly connected with baffle, baffle is used to prevent paperboard from deviating in turnover process, adjusting block is adjusted by transmission mechanism;Turnover subassembly includes the spiral bevel gear of rotationally connected in the inner wall both ends of cabinet, spiral bevel gear both ends connecting shaft are respectively fixedly connected with rotating frame, rotating frame is used to the turnover operation of paperboard, adjusting mechanism is provided on rotating frame outer wall, for the adjustment of turnover distance.The utility model realizes the quick adaptation of different specifications paperboard, improves turnover precision and stability, reduces transmission wear, guarantees production line continuous operation efficiency, satisfies the high quality demand of packaging box printing.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging box printing and processing equipment, and in particular to an automatic cardboard flipping device for packaging box printing. Background Technology

[0002] In the packaging box printing process, cardboard flipping refers to the process of turning over the cardboard after single-sided printing, ensuring that the other side of the cardboard is precisely aligned with subsequent printing steps. As the packaging box market increasingly demands higher precision in product appearance and pattern integrity, most boxes require double-sided printing, and some complex patterns require alignment between the front and back printing. This necessitates that the cardboard maintain a stable posture and precise position during flipping to avoid misalignment or omissions in the printed pattern due to flipping deviations. Furthermore, packaging box production often employs continuous assembly line operations, and the cardboard flipping process, as an intermediate connecting step in the printing line, directly impacts the overall production capacity. Therefore, a device capable of adapting to different cardboard specifications and achieving precise and stable flipping is needed to meet the dual demands of packaging box printing for flipping quality and production efficiency.

[0003] Currently, the cardboard flipping technology used in the packaging box printing industry mostly employs manual bolt adjustment for width adjustment. This involves manually rotating the bolts to move the limiting plate to accommodate different cardboard widths. This structure not only requires machine downtime for adjustment but also fails to achieve precise width control. Mismatches between the limiting plate spacing and the cardboard width can easily lead to lateral shifting during flipping. Regarding the flipping drive, traditional devices often use a combination of a complete ring gear and a spiral bevel gear. The meshing surfaces of these gears are in constant full contact, which can cause wear and tear, resulting in transmission gaps and deviations in the flipping angle. This, in turn, affects the alignment accuracy of the printed patterns on both sides. Furthermore, the fixed positions of the flipping components in traditional mechanisms prevent adjustment of the contact distance based on cardboard thickness. For thicker cardboard, this can lead to excessive clamping and indentations, while for thinner cardboard, insufficient contact can cause slippage during flipping. These problems not only reduce the product qualification rate of printed packaging boxes but also require frequent machine downtime for adjustments or troubleshooting, severely impacting the continuous operation efficiency of the production line.

[0004] Therefore, an automatic cardboard flipping device for packaging box printing is needed to solve the above problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems of the above-mentioned automatic cardboard flipping device for printing packaging boxes, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide an automatic cardboard flipping device for packaging box printing, which solves the problems of poor adaptability, low flipping accuracy, easy wear and tear of transmission and insufficient stability in the prior art when flipping cardboard.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic cardboard flipping device for printing packaging boxes, comprising: a box body;

[0009] The width adjustment assembly includes an adjustment box fixedly connected to one side of the box body. Two equally spaced sliding rods are fixedly connected to both sides of the inner wall of the adjustment box. Two opposing adjustment blocks are slidably sleeved at one end of the two sliding rods. Baffles are fixedly connected to the top of the two adjustment blocks respectively. The baffles are used to prevent the cardboard from shifting during the flipping process. The width of the adjustment blocks is adjusted by a transmission mechanism.

[0010] The flipping assembly includes spiral bevel gears rotatably connected to both ends of the inner wall of the box. A rotating frame is fixedly connected to the connecting shafts at both ends of the spiral bevel gears. The rotating frame is used for flipping the cardboard. An adjustment mechanism is provided on the outer wall of the rotating frame for adjusting the flipping distance.

[0011] As a preferred embodiment of the automatic cardboard flipping device for packaging box printing described in this utility model, wherein: racks are respectively staggered on the outer walls of the two adjusting blocks on opposite sides, and the racks are used to cooperate with the transmission mechanism.

[0012] As a preferred embodiment of the automatic cardboard flipping device for packaging box printing described in this utility model, the transmission mechanism includes a stepper motor fixedly connected to the bottom of the inner wall of the adjustment box, and a gear fixedly connected to the top rotating shaft of the stepper motor, with the two ends of the gear meshing with the two racks respectively.

[0013] As a preferred embodiment of the automatic cardboard flipping device for packaging box printing described in this utility model, the output end of the rotating frame has a cross-shaped cross section, and the inner wall of the rotating frame is provided with four grooves that are distributed in a ring at equal intervals.

[0014] As a preferred embodiment of the automatic cardboard flipping device for packaging box printing described in this utility model, the adjusting mechanism includes a flipping roller that slides into the inner wall groove of the rotating frame. One end of the flipping roller has a plurality of equidistantly distributed adjusting holes. The adjusting holes are used to control the position of the rotating frame in the rotating frame groove. The adjusting holes are fixed by fixing pins.

[0015] As a preferred embodiment of the automatic cardboard flipping device for packaging box printing described in this utility model, a motor is fixedly connected to one side of the inner wall of the box, and a second spiral bevel gear meshing with a spiral bevel gear is fixedly connected to the rotating shaft of the motor.

[0016] As a preferred embodiment of the automatic cardboard flipping device for packaging box printing described in this utility model, the spiral bevel gear and the second spiral bevel gear are used to reduce wear and improve transmission smoothness.

[0017] As a preferred embodiment of the automatic cardboard flipping device for packaging box printing described in this utility model, wherein: a rubber sleeve is fitted at one end of the flipping roller, and anti-slip grooves are respectively opened on both sides of the outer wall of the rubber sleeve, and the rubber sleeve is used to flip the cardboard more stably.

[0018] The beneficial effects of this utility model are as follows: This device achieves automatic and precise adjustment of the baffle spacing through the linkage of stepper motor, gear and interlaced rack. Combined with the smooth transmission of the pointed toothed ring spiral bevel gear and the second spiral bevel gear, as well as the flipping roller whose position can be adjusted by adjusting the insertion hole and the rubber sleeve design with anti-slip groove, it can quickly adapt to cardboard of different widths and thicknesses, effectively avoid problems such as offset and slippage, reduce transmission wear and downtime adjustment time, and greatly improve the flipping accuracy, stability and continuous operation efficiency of the production line. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of an automatic cardboard flipping device for printing packaging boxes according to this utility model.

[0021] Figure 2 This is a cross-sectional view of the box body of an automatic cardboard flipping device for printing packaging boxes according to this utility model.

[0022] Figure 3This is a schematic diagram of the flipping component structure of an automatic flipping device for printing packaging boxes according to this utility model.

[0023] Figure 4 This is a schematic diagram of the width adjustment component of an automatic cardboard flipping device for packaging box printing according to the present invention.

[0024] Figure Descriptions: 100, Housing; 200, Width Adjustment Component; 201, Adjustment Box; 202, Sliding Rod; 203, Adjustment Block; 204, Baffle; 205, Rack; 206, Stepper Motor; 207, Gear; 300, Tilting Component; 301, Spiral Bevel Gear; 302, Rotating Frame; 303, Tilting Roller; 304, Adjustment Hole; 305, Rubber Sleeve; 306, Motor; 307, Second Spiral Bevel Gear. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Example 1

[0030] Reference Figure 1 and Figure 2 This is the first embodiment of the present utility model, which provides an automatic cardboard flipping device for printing packaging boxes, comprising: a box body 100;

[0031] Width adjustment assembly 200 includes an adjustment box 201 fixedly connected to one side of the box body 100. Two equally spaced sliding rods 202 are fixedly connected to both sides of the inner wall of the adjustment box 201. Two opposing adjustment blocks 203 are slidably sleeved at one end of the two sliding rods 202. Baffles 204 are fixedly connected to the top of the two adjustment blocks 203 respectively. The baffles 204 are used to prevent the cardboard from shifting during the flipping process. The width of the adjustment blocks 203 is adjusted by a transmission mechanism.

[0032] The flipping assembly 300 includes a spiral bevel gear 301 rotatably connected to both ends of the inner wall of the box 100. The spiral bevel gear 301 has a rotating frame 302 fixedly connected to the connecting shafts at both ends. The rotating frame 302 is used for flipping the cardboard. The outer wall of the rotating frame 302 is provided with an adjustment mechanism for adjusting the flipping distance.

[0033] In use, based on the width of the cardboard to be flipped, the transmission mechanism drives two adjusting blocks 203 to move in opposite directions along the sliding rod 202, causing the baffle 204 to be adjusted to a suitable distance; then, the flipping distance of the rotating frame 302 is adjusted by the adjusting mechanism to match the cardboard thickness. Subsequently, the cardboard is fed into the device, the spiral bevel gear 301 rotates, driving the rotating frame 302 to move. Under the limiting action of the baffle 204, the cardboard is stably flipped, completing one flipping operation.

[0034] Example 2

[0035] Reference Figure 1 and Figure 4 This is the second embodiment of the present invention. Unlike the previous embodiment, the outer walls of the two adjusting blocks 203 on opposite sides are respectively provided with racks 205, which are used to cooperate with the transmission mechanism.

[0036] The transmission mechanism includes a stepper motor 206 fixedly connected to the bottom of the inner wall of the regulating box 201. A gear 207 is fixedly connected to the top rotating shaft of the stepper motor 206. The two ends of the gear 207 are respectively engaged with two racks 205.

[0037] The output end of the rotating frame 302 has a cross-shaped cross section, and the inner wall of the rotating frame 302 is provided with four grooves that are distributed in a ring at equal intervals.

[0038] The adjustment mechanism includes a flipping roller 303 that slides into the inner wall groove of the rotating frame 302. One end of the flipping roller 303 has multiple equidistantly distributed adjustment holes 304. The adjustment holes 304 are used to control the position of the rotating frame 302 in the groove of the rotating frame 302. The adjustment holes 304 are fixed by fixing pins.

[0039] Among them, a motor 306 is fixedly connected to one side of the inner wall of the housing 100, and a second spiral bevel gear 307 that meshes with the spiral bevel gear 301 is fixedly connected to the rotating shaft of the motor 306.

[0040] Among them, the spiral bevel gear 301 and the second spiral bevel gear 307 are used to reduce wear and improve transmission smoothness.

[0041] Among them, the flipping roller 303 is fitted with a rubber sleeve 305 at one end, and anti-slip grooves are respectively opened on both sides of the outer wall of the rubber sleeve 305. The rubber sleeve 305 is used to flip the cardboard more stably.

[0042] In use, the stepper motor 206 drives the baffle 204 to achieve precise positioning through the meshing of the gear 207 and the rack 205; the motor 306 drives the second spiral bevel gear 307 to mesh and rotate with the spiral bevel gear 301, so that the rotating frame 302 can smoothly flip the cardboard. The flipping roller 303 is fixed in the appropriate position through the adjustment hole 304, and the anti-slip groove of the rubber sleeve 305 ensures that the cardboard does not slip, further improving the flipping accuracy and stability of the device.

[0043] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0044] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatic cardboard flipping device for printing packaging boxes, characterized in that, include: Box (100); Width adjustment assembly (200) includes an adjustment box (201) fixedly connected to one side of the box body (100). Two equally spaced sliding rods (202) are fixedly connected to both sides of the inner wall of the adjustment box (201). Two opposing adjustment blocks (203) are slidably sleeved at one end of the two sliding rods (202). Baffles (204) are fixedly connected to the top of the two adjustment blocks (203). The baffles (204) are used to prevent the cardboard from shifting during the flipping process. The width of the adjustment blocks (203) is adjusted by a transmission mechanism. The flipping assembly (300) includes a spiral bevel gear (301) rotatably connected to both ends of the inner wall of the box (100). The spiral bevel gear (301) has a rotating frame (302) fixedly connected to the connecting shafts at both ends. The rotating frame (302) is used for flipping the cardboard. The outer wall of the rotating frame (302) is provided with an adjustment mechanism for adjusting the flipping distance.

2. The automatic cardboard flipping device for printing packaging boxes according to claim 1, characterized in that: The two adjusting blocks (203) have racks (205) staggered on their opposite outer walls, and the racks (205) are used to cooperate with the transmission mechanism.

3. The automatic cardboard flipping device for packaging box printing according to claim 2, characterized in that: The transmission mechanism includes a stepper motor (206) fixedly connected to the bottom of the inner wall of the regulating box (201). A gear (207) is fixedly connected to the top rotating shaft of the stepper motor (206). The two ends of the gear (207) are respectively meshed with the two racks (205).

4. The automatic cardboard flipping device for printing packaging boxes according to claim 1, characterized in that: The output end of the rotating frame (302) has a cross-shaped cross section, and the inner wall of the rotating frame (302) is provided with four grooves that are distributed in a ring at equal intervals.

5. The automatic cardboard flipping device for printing packaging boxes according to claim 4, characterized in that: The adjustment mechanism includes a flipping roller (303) that slides into the inner wall groove of the rotating frame (302). One end of the flipping roller (303) is provided with a plurality of equidistant adjustment holes (304). The adjustment holes (304) are used to control the position of the rotating frame (302) in the groove of the rotating frame (302). The adjustment holes (304) are fixed by fixing pins.

6. The automatic cardboard flipping device for printing packaging boxes according to claim 3, characterized in that: A motor (306) is fixedly connected to one side of the inner wall of the housing (100), and a second spiral bevel gear (307) that meshes with the spiral bevel gear (301) is fixedly connected to the rotating shaft of the motor (306).

7. The automatic cardboard flipping device for printing packaging boxes according to claim 1, characterized in that: The spiral bevel gear (301) and the second spiral bevel gear (307) are used to reduce wear and improve transmission smoothness.

8. The automatic cardboard flipping device for printing packaging boxes according to claim 5, characterized in that: The flipping roller (303) is fitted with a rubber sleeve (305) at one end. Anti-slip grooves are respectively opened on both sides of the outer wall of the rubber sleeve (305). The rubber sleeve (305) is used to flip the cardboard more stably.

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