A printing carton paperboard creasing apparatus

Abstract

The utility model discloses a kind of printing packaging box paperboard indentation equipment, including rack and indentation roller and two groups of conveying rollers rotatably installed on rack, each group of conveying roller is composed of upper and lower two roller bodies, two groups of conveying roller are distributed at the both sides of indentation roller, the discharge side of the rack is equipped with discharge table, the below of the feeding side of the rack is equipped with stacker, the bracket is vertically lifted by lifting frame, and the bracket is vertically lifted by lifting frame, the feeding side of the rack is equipped with pressure sensor by extension frame, and guide roller is rotatably installed between extension frame.The utility model is by setting stacker, liftable bracket and pressure sensor, multiple paperboards can be pre vertically stacked, then the uppermost paperboard is lifted to feeding height by lifting mechanism, then introduced into equipment by guide roller, replace traditional manual single feeding mode, not only realize continuous production, production efficiency is effectively improved, but also effectively reduce labor intensity, save manpower cost.

Description

Technical Field

[0001] This utility model relates to the technical field of cardboard processing equipment, and in particular to a creasing device for printed packaging box cardboard. Background Technology

[0002] In the printing and packaging industry, cardboard usually needs to be creasing after printing to facilitate subsequent folding and shaping. Existing cardboard creasing equipment mainly relies on the cooperation of creasing rollers and conveyor rollers to complete the creasing operation.

[0003] However, in actual operation, the operator needs to stand on the feeding side of the equipment and manually stuff the cardboard to be creasing one by one between the conveyor rollers, which then send it into the creasing area. This manual feeding method has problems such as high labor intensity and low production efficiency.

[0004] Therefore, we propose a creasing device for printed packaging boxes and cardboard to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a creasing device for printed packaging boxes and cardboard, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A creasing device for printed packaging cardboard includes a frame, a creasing roller rotatably mounted on the frame, and two sets of conveyor rollers. Each set of conveyor rollers consists of upper and lower rollers, which are distributed on both sides of the creasing roller. The discharge side of the frame is provided with a discharge platform, and the infeed side of the frame is provided with a stacking rack. The lower center of the stacking rack is provided with a bracket, which is vertically raised and lowered by a lifting frame. A pressure sensor is installed on the infeed side of the frame via an extension frame, and a guide roller is rotatably mounted between the extension frames.

[0008] In a further embodiment, the stacking rack is provided with vertical limiting strips on all four sides, and a handle is installed on one of the limiting strips. The side of the stacking rack near the lifting frame is provided with a slot for the bracket to pass through.

[0009] In a further embodiment, support rods are installed at the bottom of the stacking rack near the two corners of the lifting frame, and magnetic blocks are embedded in the side walls of the support rods. A pair of rollers are also installed at the bottom of the stacking rack.

[0010] In a further embodiment, a second motor is provided at the bottom center of the lifting frame, and parallel lead screws and guide rods are installed inside the lifting frame. A nut is provided outside the lead screw, and a slide block is slidably installed outside the guide rod. The slide block is fixedly connected to the outer wall of the nut, and the outer edge of the slide block is fixedly connected to the bracket.

[0011] In a further embodiment, metal plates are symmetrically connected to both sides of the bottom of the lifting frame, and a track bar for limiting the rolling path of the rollers is installed on the side of the metal plates near the stacking rack.

[0012] In a further embodiment, worm gears are installed on the same side of the guide roller, the upper conveyor roller, and the indentation roller. Each worm gear is meshed with a worm, and all the worms are coaxially connected to form a transmission rod through a connecting rod. One end of the transmission rod that passes through the side plate of the frame is connected to a motor. The two rollers of the same group of conveyor rollers are also driven by an even number of spur gears meshing together.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention, by setting up a stacking rack, a liftable bracket, and a pressure sensor, allows multiple sheets of cardboard to be pre-stacked vertically. Then, a lifting mechanism automatically raises the top sheet of cardboard to the feeding height, and then guides it into the equipment by a guide roller. This replaces the traditional manual single-sheet feeding mode, which not only achieves continuous production and effectively improves production efficiency, but also effectively reduces labor intensity and saves labor costs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the discharge side of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the feed side of this utility model;

[0017] Figure 3 This is a schematic diagram of the drive unit structure for conveying the indentation area according to this utility model;

[0018] Figure 4 This is a schematic diagram of the material stacking rack structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the installation structure of the lifting frame and bracket of this utility model.

[0020] In the diagram: 1. Frame; 2. Indentation roller; 3. Conveyor roller; 4. Discharge platform; 5. Stacking rack; 51. Limiting strip; 52. Handle; 53. Support rod; 531. Magnetic block; 54. Roller; 6. Bracket; 7. Lifting frame; 71. Motor II; 72. Lead screw; 73. Nut; 74. Smooth rod; 75. Slide; 76. Track bar; 77. Metal plate; 8. Extension frame; 9. Pressure sensor; 10. Guide roller; 11. Worm gear; 12. Worm; 13. Motor I; 14. Spur gear. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 A creasing device for printed packaging cardboard includes a frame 1, a creasing roller 2, a conveyor roller 3, a discharge table 4, a stacking rack 5, a bracket 6, a lifting frame 7, an extension frame 8, a pressure sensor 9, and a guide roller 10.

[0025] Specifically, the frame 1 serves as the main support structure, with a creasing roller 2 and two sets of conveyor rollers 3 rotatably mounted on its upper part. Each set of conveyor rollers 3 consists of two roller bodies, one upper and one lower, located on the left and right sides of the creasing roller 2, respectively, responsible for clamping and feeding the cardboard. A discharge platform 4 is fixed on the discharge side of the frame 1 to receive the cardboard that has been creasing.

[0026] A stacking rack 5 is provided below the feed side of the frame 1 for vertically stacking and storing cardboard to be crimped. Vertical limiting strips 51 are provided around the stacking rack 5 to prevent the cardboard stack from collapsing. A handle 52 is installed on one of the limiting strips 51 to facilitate moving the entire stacking rack 5. A slot is opened on the side of the stacking rack 5 near the lifting frame 7. A pair of rollers 54 and two support rods 53 are installed at the bottom of the stacking rack 5. The rollers 54 facilitate the movement of the stacking rack 5, and the support rods 53 can be positioned on the ground. Magnetic blocks 531 are embedded in the side wall of the support rods 53.

[0027] The bracket 6 is located in the lower middle part of the stacking rack 5 and is used to support the entire stack of cardboard from the bottom. The bracket 6 is vertically lifted by the lifting frame 7. The lifting frame 7 is equipped with a parallel lead screw 72 and a guide rod 74. The motor 71 drives the lead screw 72 to rotate, which drives the nut 73 that cooperates with it and the slide block 75 that is fixedly connected to it to slide up and down along the guide rod 74, thereby driving the bracket 6, which is fixed to the slide block 75, to lift up and down.

[0028] The bottom of the lifting frame 7 is fixed to the ground, and the top is fixed to the horizontal plate of the frame 1. Metal plates 77 are symmetrically connected to both sides of the bottom of the lifting frame 7, and track bars 76 are installed. When it is necessary to load materials, the operator pushes the stacking rack 5 through the handle 52, so that the rollers 54 at the bottom slide along the track bars 76 until the magnetic block 531 on the support rod 53 is attracted to the metal plate 77 at the bottom of the lifting frame 7, so as to realize the quick positioning and fixation of the stacking rack 5 and the lifting frame 7.

[0029] Above the feed side of the frame 1, a pressure sensor 9 and a guide roller 10 are installed via an extension frame 8. Worm gears 11 are installed on the same side of the guide roller 10, the upper conveyor roller 3, and the creasing roller 2. A worm 12 is meshed below each worm gear 11. All worms 12 are coaxially connected by a connecting rod to form a transmission rod. This transmission rod is driven by a motor 13. The upper and lower rollers of the same group of conveyor rollers 3 are meshed and driven by an even number of spur gears 14 to ensure that they rotate in opposite directions synchronously to clamp the cardboard.

[0030] In addition, pressure sensor 9, motor 13 and motor 2 71 are all connected to a controller. Pressure sensor 9 converts the detected pressure signal into an electrical signal and transmits it to the controller in real time. Motor 13 is controlled by PLC through an AC contactor. The PLC sends commands to control the on and off of the contactor, thereby starting or stopping motor 13. Motor 2 71 is a stepper motor or servo motor. Its driver is connected to the PLC's digital output terminal. The PLC controls the rotation angle and direction of the motor by sending a specific number of pulses, thereby achieving precise lifting and lowering of bracket 6.

[0031] Work process: The operator vertically stacks a stack of cardboard to be crimped in the stacking rack 5, which is limited by the limiting strip 51. Then, the operator pushes the stacking rack 5 so that it moves on the track 76 via the rollers 54 and is fixed to the lifting frame 7 by magnetic blocks 531.

[0032] When the equipment is started, motor 71 inside the lifting frame 7 works, driving screw 72 to rotate. Through nut 73 and slide 75, it drives bracket 6 and the entire stack of cardboard to rise slowly. When the top cardboard touches the pressure sensor 9 above, the pressure sensor 9 sends a signal. After receiving the signal, the controller immediately controls motor 71 to stop rotating, and the lifting frame 7 stops rising. At this time, the top cardboard protrudes from the horizontal plate of the frame 1 and is just below the guide roller 10. Meanwhile, the second layer of cardboard is blocked by the horizontal plate of the frame 1.

[0033] When motor 13 starts, it drives the transmission rod and all worm gears 12 to rotate synchronously. The worm gears 12 drive the worm wheel 11 that meshes with them, thereby causing the guide roller 10, the upper conveyor roller 3 and the creasing roller 2 to rotate synchronously. The guide roller 10 first contacts and pushes the uppermost cardboard between the right conveyor rollers 3. The conveyor roller 3 sends the cardboard under the creasing roller 2 for creasing, and finally sends it out from the left conveyor roller 3 to the discharge table 4.

[0034] After the top layer of cardboard is sent away, the height of the cardboard below it decreases, the trigger state of pressure sensor 9 is released, and the controller will start a short delay program to ensure that the cardboard is completely in the conveying system. After the delay ends, the PLC drives motor 71 again, causing the bracket 6 to lift the remaining cardboard to a small height again until the next cardboard triggers pressure sensor 9 again to stop, waiting for the next feeding. This cycle continues until the entire stack of cardboard is processed.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A creasing device for printed packaging cardboard, comprising a frame (1), a creasing roller (2) rotatably mounted on the frame (1), and two sets of conveyor rollers (3), each set of conveyor rollers (3) consisting of upper and lower roller bodies, the two sets of conveyor rollers (3) being distributed on both sides of the creasing roller (2), characterized in that: The machine frame (1) has a discharge platform (4) on the discharge side and a stacking rack (5) below the feed side of the machine frame (1). The stacking rack (5) has a bracket (6) in the lower middle part and the bracket (6) is vertically raised and lowered by a lifting frame (7). A pressure sensor (9) is installed on the feed side of the machine frame (1) through an extension frame (8), and a guide roller (10) is rotatably installed between the extension frames (8).

2. The creasing equipment for printed packaging box cardboard according to claim 1, characterized in that: The stacking rack (5) is provided with vertical limiting strips (51) on all four sides. A handle (52) is installed on one of the limiting strips (51). The stacking rack (5) has a slot for the bracket (6) to pass through on the side near the lifting frame (7).

3. The creasing equipment for printed packaging box cardboard according to claim 1, characterized in that: The bottom of the stacking rack (5) is equipped with support rods (53) near the two corners of the lifting frame (7). Magnetic blocks (531) are embedded in the side walls of the support rods (53). A pair of rollers (54) are also installed at the bottom of the stacking rack (5).

4. The creasing equipment for printed packaging box cardboard according to claim 1, characterized in that: The lifting frame (7) has a motor (71) at the bottom center, and parallel lead screw (72) and guide rod (74) are installed inside the lifting frame (7). The lead screw (72) is provided with a nut (73), and a slide block (75) is slidably installed on the guide rod (74). The slide block (75) is fixedly connected to the outer wall of the nut (73), and the outer edge of the slide block (75) is fixedly connected to the bracket (6).

5. The creasing equipment for printed packaging box cardboard according to claim 3, characterized in that: The bottom sides of the lifting frame (7) are symmetrically connected with metal plates (77), and the side of the metal plate (77) near the stacking rack (5) is equipped with a track bar (76) for limiting the rolling path of the roller (54).

6. The creasing equipment for printed packaging box cardboard according to claim 1, characterized in that: Worm gears (11) are installed on the same side of the guide roller (10), the upper conveyor roller (3) and the indentation roller (2). Each worm gear (11) is meshed with a worm (12). All worms (12) are coaxially connected to form a transmission rod through a connecting rod. One end of the transmission rod that passes through the side plate of the frame (1) is connected to the motor (13). The two rollers of the same group of conveyor rollers (3) are also meshed and driven by an even number of spur gears (14).

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