Carton tipping conveyor

Abstract

The embodiment of the application relates to the technical field of carton processing equipment, and particularly relates to a carton overturning conveying line. In the carton overturning conveying line provided by the embodiment of the application, when a carton is in contact with a contact sensor on the working surface of an abutting plate, the contact sensor triggers an electromagnet to generate a magnetic field repelling the permanent magnet, and the repelling force forces the locking block to be inserted into the gap between the upper and lower symmetrical clamping rollers and locked. In this way, the overturning frame body can clamp and overturn the carton to the opposite position through the clamping rollers. When the overturning frame body is overturned to the opposite position, the start switch is pressed, at this time, the electromagnet is powered off and the locking block is released to return to the original position, so that the locking block is separated from the clamping rollers, and finally the carton can be naturally separated under the rolling action of the clamping rollers. The above structure design can realize reliable clamping while avoiding damage to the surface of the carton, and is particularly suitable for overturning operation of high-quality packaging cartons with surface film.

Description

Technical Field

[0001] This application relates to the field of cardboard box processing equipment technology, and in particular to a cardboard box flipping and conveying line. Background Technology

[0002] Cardboard boxes are the most widely used packaging products. Depending on the materials used, there are corrugated cardboard boxes, single-layer cardboard boxes, etc. They are mainly used as wrapping materials for goods or as protective outer layers for items. During the cardboard box production process, the cardboard needs to be conveyed to facilitate subsequent folding and shaping into cardboard boxes.

[0003] After cardboard is folded into cartons, it needs to be printed on both sides, glued, or laminated with other materials. Therefore, one side needs to be processed first before flipping it over to continue the operation. In related technologies, a clamping mechanism is generally used to hold the carton before flipping it over. Because some carton surfaces are coated with a smooth transparent film, the clamping mechanism can easily throw the carton outwards during rapid flipping, thus affecting the efficiency of carton processing. Utility Model Content

[0004] In view of this, this application provides a carton flipping transport line to solve the technical problem in the related art where the clamping device of the flipping mechanism may accidentally throw out the carton when clamping and flipping it.

[0005] To address the aforementioned technical problems, this application provides the following technical solutions: A cardboard box flipping transport line includes: The frame has four sets of casters symmetrically arranged at its bottom. A roller conveyor belt, which is fixedly mounted on the top of the frame; A tilting frame is rotatably connected to the end of the frame via a bidirectional rotary bearing and is located at the discharge end of the roller conveyor belt. The clamping mechanism includes an abutment plate fixedly disposed on the top surface of the flipping frame. A contact sensor is installed on the working surface of the abutment plate. Clamping plates are vertically and symmetrically disposed on both sides of the working surface. The opening of the clamping plate forms a continuous conveying plane with the conveying plane of the roller conveyor belt. Two clamping rollers are rotatably disposed on the working surface of each clamping plate, and there is a preset distance between the two clamping rollers. The clamping plate clamps the carton through the clamping rollers. The locking mechanism includes a locking block located inside the clamping plate and two electromagnets fixedly disposed on the inner wall surface of the clamping plate. Each locking block is elastically connected to the inner wall of the clamping plate through a return spring, and a permanent magnet is embedded on its side near the electromagnet. Each electromagnet is arranged opposite to the locking block and forms a closed-loop control circuit with the contact sensor. A start switch is located on the frame and on the opposite side of the flipping frame; the start switch is electrically connected to the electromagnet. An inclined hydraulic cylinder, wherein the cylinder seat is hinged to the bottom side of the frame, and its piston rod is hinged to the side of the restaurant frame, is used to flip the tilting frame; wherein... In the initial state, the locking block is located beside the clamping roller under the tension of the reset spring. When the contact sensor detects the set pressure, the electromagnet generates a magnetic field that repels the permanent magnet and drives the locking block to insert into the gap of the clamping roller. When the flipping frame flips to the opposite side and the start switch is pressed, the electromagnet is de-energized and the locking block is reset.

[0006] In some possible implementations, the surface of each clamping roller is covered with an elastic rubber layer, and the surface of the elastic rubber layer is provided with staggered anti-slip patterns.

[0007] In some possible implementations, both ends of the clamping plate along its length are elastically connected to the inner wall of the clamping plate via the return spring.

[0008] In some possible implementations, the hinge point between the inclined hydraulic cylinder and the frame is located below the conveying plane of the roller conveyor belt, and the hinge point between its piston rod and the tilting frame is located on the axial extension line of the bidirectional rotary bearing.

[0009] In some possible implementations, the electromagnet is powered by DC.

[0010] In some possible implementations, the start switch may be a microswitch with an IP67 protection rating.

[0011] The carton flipping and transport line provided in this application embodiment has at least the following beneficial effects: In the carton flipping conveyor line provided in this application embodiment, when the carton contacts the contact sensor on the working surface of the abutment plate, the contact sensor triggers an electromagnet to generate a magnetic field that repels the permanent magnet. This repulsive force forces a locking block to insert into the gap between the symmetrically arranged clamping rollers, locking both. In this way, the flipping frame can clamp the carton and flip it to the opposite side via the locked clamping rollers. Once the flipping frame has flipped to the opposite side, it will press an activation switch, de-energizing the electromagnet and releasing the locking block to return it to its original position. This allows the locking block to disengage from between the clamping rollers, ultimately allowing the carton to fall naturally under the rolling action of the clamping rollers. This structural design achieves reliable clamping while avoiding indentation damage to the carton surface, making it particularly suitable for flipping high-end packaging cartons with surface coatings. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0013] Figure 1 This is a schematic diagram of the overall structure of the carton flipping transport line according to an embodiment of this application; Figure 2 for Figure 1 Schematic diagram of the middle plate; Figure 3 for Figure 2 A schematic diagram of the internal structure in cross-section from the top surface; Figure 4 for Figure 1 A schematic diagram of the structure in a flipped state.

[0014] In the picture: 100. Frame; 110. Casters; 200. Roller conveyor belt; 300. Tilting frame; 310. Opening; 400. Abutment plate; 500. Clamping plate; 600. Clamping roller; 700. Locking block; 710. Return spring; 800. Electromagnet; 900. Start switch; 1000. Inclined hydraulic cylinder. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1-4 As shown, the carton flipping conveyor line provided in this embodiment includes a frame 100, a roller conveyor belt 200, a flipping frame 300, a clamping mechanism, a locking block 700, an electromagnet 800, and a start switch 900. The frame 100 is the supporting structure of the entire flipping conveyor line. Four sets of casters 110 are symmetrically arranged at the bottom of the frame 100; these casters 110 can be universal casters 110 with braking function. A roller conveyor belt 200 is fixedly installed at the top of the frame 100. The roller conveyor belt 200 includes a servo motor-driven adjustable speed conveying roller mechanism. The roller conveyor belt 200 can transport the carton from the first end to the second end, and subsequently flip the carton at the second end.

[0017] The tilting frame 300 is rotatably connected to the end of the frame 100 via a bidirectional rotary bearing at its end, and the tilting frame 300 is located at the discharge end of the roller conveyor belt 200. In other words, the tilting frame 300 can tilt along the axis of rotation.

[0018] The clamping mechanism is fixedly mounted on the top surface of the flipping frame 300. Specifically, the clamping mechanism includes an abutment plate 400 and clamping plates 500 perpendicularly mounted on both sides of the working surface of the abutment plate 400. The abutment plate 400 is fixedly mounted on the top surface of the flipping frame 300. The abutment plate 400 is mainly used to abut and limit the carton conveyed from the roller conveyor belt 200. The working surface of the abutment plate 400 is also embedded with a contact sensor (not shown in the figure). The opening 310 between the two clamping plates 500 is connected to the conveying plane of the roller conveyor belt 200, and the two form a continuous conveying plane. Two clamping rollers 600 are rotatably mounted on the working surface of each clamping plate 500. Specifically, each clamping roller 600 is mounted on the clamping plate 500 through a bearing seat, and the surface of the clamping roller 600 can be a vulcanized nitrile rubber layer to provide a certain coefficient of friction. In addition, the center distance between the two symmetrically distributed clamping rollers 600 can be adjusted by an eccentric mechanism to accommodate cartons of different sizes.

[0019] The two clamping rollers 600 are symmetrically distributed vertically, and there is a preset distance between them. In actual use, the carton is conveyed from the first end to the second end by the roller conveyor belt 200. When the carton reaches the vicinity of the flipping frame 300, it will contact the clamping rollers 600 and smoothly enter the position between the two clamping plates 500.

[0020] In this embodiment, the clamping plate 500 is a hollow structure with an inner cavity. The locking mechanism includes two locking blocks 700, which are symmetrically arranged inside the clamping plate 500 and connected to the inner wall surface of the clamping plate 500 via return springs 710. The locking blocks 700 are located between the vertically and vertically symmetrically distributed clamping rollers 600, and permanent magnets are embedded in the surface of the locking blocks 700 near the electromagnet 800. Preferably, both sides of the locking blocks 700 in the length direction are elastically connected to the inner wall surface of the clamping plate 500 via return springs 710 to ensure the stability of the linear movement of the locking blocks 700. The return springs 710 are made of stainless steel and, in the initial state, keep the locking blocks 700 in a ready position at a preset distance from the central axis of the clamping rollers 600.

[0021] like Figure 3As shown, two electromagnets 800 are symmetrically distributed inside the clamping plate 500. The electromagnets 800 are powered by DC with a rated voltage of 24V. The electromagnets 800 and the locking block 700 are positioned opposite each other, and the distance between them can be designed according to actual conditions. A contact sensor is also provided on the working surface of the abutment plate 400 of the clamping mechanism. The contact sensor is electrically connected to the electromagnet 800. When the contact sensor detects the pressure of the carton, the control system applies a reverse current to the electromagnet 800, causing the electromagnet 800 to generate a magnetic force that repels the permanent magnet, thereby driving the locking block 700 to move.

[0022] In addition, a start switch 900 electrically connected to the electromagnet 800 is provided on the top surface of the frame 100. The start switch 900 is located on the opposite side of the flip-up frame 300. The start switch 900 can be a micro switch with an IP67 protection rating to ensure that it can reliably cut off the power supply to the electromagnet 800 even in a vibration environment.

[0023] The working principle and process of a carton flipping transport line provided in the embodiments of this application are described below.

[0024] In the initial state, the locking block 700 is positioned beside the two vertically distributed clamping rollers 600 under the pull of the return spring 710. At this time, the carton can be conveyed to the two clamping plates 500 by the roller conveyor through the clamping rollers 600. When the carton comes into contact with the contact sensor on the working surface of the abutment plate 400, the contact sensor triggers the electromagnet 800 to generate a magnetic field that repels the permanent magnet, and forces the locking block 700 to insert into the gap between the vertically and vertically symmetrically arranged clamping rollers 600 through the repulsive force, thus locking the two together. In this way, the flipping frame 300 can clamp the carton and flip it to the opposite position through the locked clamping rollers 600.

[0025] When the flipping frame 300 flips to the opposite side, it will press the start switch 900. At this time, the electromagnet 800 is de-energized and the locking block 700 is released and returned to its position, so that the locking block 700 is disengaged from the clamping rollers 600. Finally, the carton can be naturally detached under the rolling action of the clamping rollers 600.

[0026] In some embodiments, the elastic rubber layer surface of each clamping roller 600 is provided with staggered anti-slip patterns. The anti-slip patterns can further increase the coefficient of friction to enhance clamping stability, prevent the carton from slipping off due to inertia during the flipping process, and also avoid surface damage caused by excessive clamping.

[0027] In some embodiments, both ends of the clamping plate 500 along its length are elastically connected to the inner wall of the clamping plate 500 via a return spring 710. The design of double-end elastic support can make the locking block 700 bear force evenly, avoiding skewing or jamming caused by a single-sided spring, thereby improving the linear motion accuracy of the locking block 700 when it is inserted into the gap of the clamping roller 600.

[0028] In some embodiments, the hinge point between the inclined hydraulic cylinder 1000 and the frame 100 is located below the conveying plane of the roller conveyor belt 200, and the hinge point between its piston rod and the flipping frame 300 is located on the axial extension line of the bidirectional rotary bearing. This hinge position design optimizes the torque transmission path of the hydraulic cylinder, reduces lateral separation during the flipping process, thereby reducing the additional stress on the frame 100 and extending the service life of the equipment. Furthermore, the axial alignment of the piston rod and the bearing allows the flipping frame 300 to rotate smoothly around the axis, avoiding vibration or impact caused by eccentricity and ensuring a smooth and controllable carton flipping process.

[0029] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0030] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0031] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0032] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0033] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0034] As used herein, the term "substrate" refers to the material on which subsequent material layers are added. The substrate itself may be patterned. The material added on top of the substrate may be patterned or may remain unpatterned. Furthermore, the substrate may include a wide range of materials, such as silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate may be made of a non-conductive material (e.g., glass, plastic, or sapphire wafers).

[0035] The term "layer" as used herein can refer to a portion of material comprising a region of thickness. A layer may extend over the entire underlying or overlying structure, or may have a extent smaller than that of the underlying or overlying structure. Furthermore, a layer may be a region of a homogeneous or non-homogeneous continuous structure, with a thickness less than that of the continuous structure. For example, a layer may be located between the top and bottom surfaces of the continuous structure, or between any pairs of lateral planes at the top and bottom surfaces. A layer may extend laterally, vertically, and / or along a tapered surface. A substrate may be a layer, and may include one or more layers, and / or may have one or more layers located on, above, and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductor and contact layers (forming contacts, interconnects, and / or vias therein) and one or more dielectric layers.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cardboard box flipping transport line, characterized in that, include: The frame has four sets of casters symmetrically arranged at its bottom. A roller conveyor belt, which is fixedly mounted on the top of the frame; A tilting frame is rotatably connected to the end of the frame via a bidirectional rotary bearing and is located at the discharge end of the roller conveyor belt. The clamping mechanism includes an abutment plate fixedly disposed on the top surface of the flipping frame. A contact sensor is installed on the working surface of the abutment plate. Clamping plates are vertically and symmetrically disposed on both sides of the working surface. The opening of the clamping plate forms a continuous conveying plane with the conveying plane of the roller conveyor belt. Two clamping rollers are rotatably disposed on the working surface of each clamping plate, and there is a preset distance between the two clamping rollers. The clamping plate clamps the carton through the clamping rollers. The locking mechanism includes a locking block located inside the clamping plate and two electromagnets fixedly disposed on the inner wall surface of the clamping plate. Each locking block is elastically connected to the inner wall of the clamping plate through a return spring, and a permanent magnet is embedded on its side near the electromagnet. Each electromagnet is arranged opposite to the locking block and forms a closed-loop control circuit with the contact sensor. A start switch is located on the frame and on the opposite side of the flipping frame; the start switch is electrically connected to the electromagnet. An inclined hydraulic cylinder, wherein the cylinder seat is hinged to the bottom side of the frame, and its piston rod is hinged to the side of the restaurant frame, is used to flip the tilting frame; wherein... In the initial state, the locking block is located beside the clamping roller under the tension of the reset spring. When the contact sensor detects the set pressure, the electromagnet generates a magnetic field that repels the permanent magnet and drives the locking block to insert into the gap of the clamping roller. When the flipping frame flips to the opposite side and the start switch is pressed, the electromagnet is de-energized and the locking block is reset.

2. The carton flipping and conveying line according to claim 1, characterized in that: Each of the clamping rollers is covered with an elastic rubber layer, and the surface of the elastic rubber layer is provided with staggered anti-slip patterns.

3. The carton flipping and conveying line according to claim 1, characterized in that: Both ends of the clamping plate along its length are elastically connected to the inner wall of the clamping plate via the return spring.

4. The carton flipping conveyor line according to claim 1, characterized in that: The hinge point between the inclined hydraulic cylinder and the frame is located below the conveying plane of the roller conveyor belt, and the hinge point between its piston rod and the flipping frame is located on the axial extension line of the bidirectional rotary bearing.

5. The carton flipping and conveying line according to claim 1, characterized in that: The electromagnet is powered by DC.

6. The carton flipping conveyor line according to claim 1, characterized in that: The start switch can be a micro switch with an IP67 protection rating.

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