A cartoner paperboard conveying device
By setting a combination of elastic metal baffles and counterweights on the packing machine, the problem of unstable tilting during the separation of corrugated boards was solved, achieving stable separation of corrugated boards and improving the operating efficiency and reliability of the production line.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-04
AI Technical Summary
When separating corrugated boards, existing packing machines often encounter problems where the corrugated boards, due to factors such as surface smoothness, humidity, and stacking neatness, cannot naturally form and maintain a stable backward tilt. This leads to increased friction, which can cause multiple corrugated boards to be pulled out simultaneously or become stuck, affecting production cycle and equipment reliability.
Elastic metal baffles are installed on the first conveying mechanism of the packing machine. The elastic deformation of the baffles generates tilting and restoring force, which forces the corrugated boards to form a stable tilted posture. The magnitude and point of application of the downward pressure are adjusted by the counterweight to ensure smooth separation of the corrugated boards.
It achieves stable and reliable separation of corrugated sheets, avoids multiple feeding and jamming, improves the operating efficiency and stability of the production line, and has a simple structure, low cost, and is easy to install and maintain.
Smart Images
Figure CN224589473U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging machinery technology, specifically to a beverage bottle packing machine, and more particularly to a carton board conveying device for a packing machine that enables stacked corrugated boards to tilt stably to achieve reliable single-sheet separation. Background Technology
[0002] In beverage production lines, automated case packers are key equipment in the downstream packaging process. Their conventional operating principle is as follows: the upper part transports filled beverage bottles via a first conveyor belt, and then groups them according to their box capacity via a grouping mechanism; the lower part is equipped with a packaging box conveying device, which separates the stacked corrugated cardboard boxes one by one and inserts them at an angle under the bottle groups above, finally completing the folding and sealing of the boxes.
[0003] A common device includes a pushing mechanism (such as a cylinder pusher) that pushes a stack of corrugated sheets forward onto a horizontally positioned first conveyor (such as a belt conveyor). The first conveyor transports the bottommost corrugated sheet to its end, and the bottommost corrugated sheet is pushed onto an inclined second conveyor (such as a chain conveyor with stops), where stops push the single corrugated sheet to complete the subsequent process.
[0004] In the above scheme, the stack of corrugated sheets pushed onto the first conveyor mechanism remains stacked. When it is necessary to separate the bottom corrugated sheet at its end, ideally, the entire stack of corrugated sheets should form a backward tilt angle (relative to the conveying direction) before entering the separation station. This tilting posture can significantly reduce the upper positive pressure on the bottom corrugated sheet, thereby greatly reducing the friction between it and the conveyor belt, making it easier to be extracted individually and smoothly into the second conveyor mechanism.
[0005] However, in actual production, due to factors such as the smoothness of the corrugated board surface, humidity, and the neatness of stacking, the static friction between the boards can be very high. This often prevents the natural formation or maintenance of an ideal tilt, causing the corrugated board stack to move horizontally forward. This puts enormous pressure on the bottom layer of corrugated board, increasing the frictional force required to overcome during separation. This can easily lead to the extraction of multiple corrugated boards at once (two or more), or cause jamming and separation failure, severely impacting production cycle time and equipment reliability.
[0006] Therefore, there is an urgent need in the field for a simple, effective and reliable mechanism integrated into the first conveying mechanism that can actively intervene and force the corrugated board stack to form and maintain a stable backward tilt during the conveying process, thereby creating optimal conditions for subsequent single-sheet separation. Utility Model Content
[0007] The purpose of this utility model is to overcome the above-mentioned defects of the prior art and provide a carton board conveying device for a carton packing machine. It can effectively ensure that the stacked corrugated boards form and maintain a stable backward tilt during the horizontal conveying stage, thereby greatly improving the reliability and success rate of separating the bottom layer of corrugated boards.
[0008] To achieve the aforementioned objectives, the present invention provides a carton board conveying device for a carton packing machine, which is implemented through the following technical solution:
[0009] A carton board conveying device for a carton packing machine includes a pushing mechanism, a horizontally arranged first conveying mechanism, and an inclined second conveying mechanism sequentially connected along the corrugated board conveying path. The first conveying mechanism is located below the end of the pushing mechanism to receive the stacked corrugated boards pushed by the pushing mechanism. The conveying surface of the second conveying mechanism has stops spaced apart on both sides for pushing the corrugated boards. The device is characterized in that: at least one baffle is provided above the first conveying mechanism. The baffle is made of a flexible metal plate, with one end being a fixed end, directly or indirectly fixed to a frame above the inlet side of the first conveying mechanism, and the other end being a free end. The free end extends inclined downwards along the conveying direction of the first conveying mechanism and is suspended above the conveying surface of the first conveying mechanism. Several fixed seats are spaced apart on the upper surface of the baffle near the free end, and counterweights are detachably mounted on the baffle through the fixed seats.
[0010] The conveying device further includes a guide rail disposed above the first conveying mechanism and arranged laterally thereon, and a slider slidably disposed on the guide rail; the fixed end of the stop bar is fixedly installed on the slider, and the position of the stop bar relative to the width of the conveying path can be adjusted by adjusting the position of the slider on the guide rail.
[0011] The fixing base is a vertical plate erected on the upper surface of the baffle, and the plate surface is arranged along the width direction of the baffle; the counterweight block is provided with a slot that matches the shape of the fixing base and is fixedly connected to the fixing base by a set screw.
[0012] The number of fixed seats is multiple. The operator can adjust the downward pressure, deformation curve, and minimum distance between the free end of the stop bar and the conveying surface of the first conveying mechanism by selecting the fixed seats at different positions and selecting the number of counterweights to install.
[0013] The lower surface of the baffle is a smooth plane.
[0014] The number of the baffles is two or more, arranged in parallel at intervals along the width direction perpendicular to the conveying direction, and working together on different areas of the same corrugated board.
[0015] The working principle of this invention is as follows: When the neatly stacked corrugated sheets pushed out by the pushing mechanism enter the first conveying mechanism and are conveyed forward, their front ends will first contact the free end of the inclined downward-pressing stop bar. The stop bar will immediately be lifted upward by the corrugated sheets, undergoing elastic bending deformation. The deformed stop bar will generate a restoring force that continuously tilts downward. This force acts on the front part of the corrugated sheets (relative to the conveying direction), effectively hindering the movement of the upper corrugated sheets along its curve, successfully forcing relative sliding between the upper and lower corrugated sheets, thereby forming and maintaining an overall tilted posture that gradually moves backward from bottom to top. This posture allows the bottommost corrugated sheets to be conveyed out very smoothly and individually, effectively avoiding multi-sheet feeding and jamming phenomena.
[0016] The beneficial effects of this utility model are:
[0017] 1. By actively applying pressure mechanically, a tilt is forcibly formed, resulting in a stable and reliable effect that is unaffected by fluctuations in the surface characteristics of the corrugated board.
[0018] 2. By adjusting the number and installation position of the counterweights, the magnitude and point of application of the downward pressure can be flexibly adjusted to adapt to corrugated boards of different materials, quantities, and sizes.
[0019] 3. The core component consists of only one or a few elastic baffles with counterweights. The structure is very simple, the manufacturing cost is low, and it is easy to install and maintain. This improvement scheme only adds a few components to the existing conveying mechanism. The structure is simple, the manufacturing cost is low, the installation and maintenance are convenient, and the reliability is high. It is very suitable for upgrading existing packing machines.
[0020] 4. The counterweight mounting structure is located above the stop bar, ensuring that the lower surface in contact with the corrugated sheet is smooth and flat, avoiding the risk of scratching the corrugated sheet.
[0021] 5. It solved the problems of multiple feeds and jamming, greatly improving the operating efficiency and stability of the entire production line. Attached Figure Description
[0022] The above features and advantages of the present invention will become clearer and easier to understand from the following description of exemplary embodiments thereof in conjunction with the accompanying drawings.
[0023] Figure 1 This is a schematic diagram of the structure of a carton conveying device for a carton packing machine according to an embodiment of the present invention;
[0024] Figure 2 for Figure 1 A magnified view of a portion of the image;
[0025] Figure 3 This is a top view of the retaining strip structure. Detailed Implementation
[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0027] The terms "front," "rear," "left," "right," "inner," and "outer" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.
[0028] In the description of the following embodiments, unless otherwise expressly specified and limited, the term "connection" and other such terms should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0030] like Figures 1 to 3 As shown, the carton board conveying device of this utility model includes a pushing mechanism 1, a horizontally arranged first conveying mechanism 2, and an inclinedly arranged second conveying mechanism 3, which are connected sequentially along the corrugated board conveying path.
[0031] The top-pushing mechanism 1 uses a cylinder-driven push plate to periodically push out a stack of flat, unfolded cardboard boxes (corrugated boards 5) stacked on the feeding platform.
[0032] The first conveying mechanism 2 is a horizontally arranged belt conveyor located below the end of the pushing mechanism 1, used to receive the corrugated plate 5 that is pushed out. Figure 1 (To make the stacking pattern clearer, the thickness of the corrugated board has been slightly exaggerated) and then transported to the end.
[0033] The second conveying mechanism 3 is a chain conveyor belt, including a horizontal conveying section and an inclined conveying section. The horizontal conveying section receives the corrugated sheets 5 conveyed by the first conveying mechanism 2, and then the corrugated sheets 5 are conveyed upwards at an inclined angle in the inclined conveying section. Spacing blocks 31 are fixed on the conveying surface. The end of the first conveying mechanism 2 connects to the beginning of the second conveying mechanism 3 and is slightly higher than the beginning of the second conveying mechanism 3.
[0034] The key improvement in this embodiment is that three baffles 4 are provided above the first conveying mechanism 2. The baffles 4 are made of spring steel plates with good elasticity and fatigue resistance, and their lower surfaces are smooth. In this embodiment, the baffles 4 are made of spring steel with a thickness of 5mm and a width of 50mm, possessing good elasticity and wear resistance.
[0035] A guide rail assembly 6 is horizontally arranged above the first conveying mechanism 2. The guide rail assembly 6 includes a guide rail 61 fixed on the frame 7 (not fully shown in the figure) and several sliders 62 that are slidably arranged on the guide rail 61 and can be selectively fixed. The fixed ends 4a of the baffles 4 are fixedly installed on the sliders 62 one by one. By adjusting the position of the sliders 62 on the guide rail, the position of each baffle 4 can be adjusted to adapt to corrugated sheets 5 of different widths.
[0036] The free end 4b of the baffle 4 is in the conveying direction ( Figure 1 It extends downwards at an angle from the center to the left and is suspended above the conveying surface of the first conveying mechanism 2. When no counterweight is installed, the distance between it and the belt surface is slightly greater than the thickness of a single corrugated board (usually more than 3 mm thick).
[0037] On the upper surface of each baffle 4, near the free end 4b, a plurality of fixing seats 41 made of thin steel sheets are welded. These fixing seats 41 are upright plates that stand vertically on the upper surface of the baffle 4, and their plates are arranged along the width direction of the baffle 4.
[0038] The counterweight 8 is designed as a block, with a slot 81 machined on its bottom that matches the thickness of the fixing base 41. The side of the counterweight 8 has screw holes that mate with the set screws 82.
[0039] During operation, the operator selects one or more suitable mounting bases 41 according to the required size and distribution of the counterweight. The slot 81 of the counterweight 8 is aligned with the selected mounting base 41 and inserted, so that the mounting base 41 is embedded in the slot 81. Then, the set screw 82 is screwed in from the side until its end firmly presses against the side of the mounting base 41, thereby securely locking the counterweight 8 onto the stop bar 4. By installing counterweights of different weights at different positions, the elastic deformation characteristics of the stop bar 4 can be finely controlled.
[0040] The working principle of this invention is as follows: When the neatly arranged corrugated sheet 5, pushed out by the pushing mechanism 1, enters the first conveying mechanism 2 and is conveyed forward, its front end will first contact the free end of the inclined downward-pressing baffle 4. The baffle 4 will immediately be lifted upward by the corrugated sheet, undergoing elastic bending deformation. The deformed baffle 4 will generate a restoring force that continuously tilts downward. This force acts on the front part of the corrugated sheet 5 (opposite to the conveying direction), which has the effect of hindering the movement of the upper corrugated sheet 5 along its curve, successfully forcing the upper and lower corrugated sheets to slide relative to each other, thereby forming and maintaining a structure that moves backward step by step from bottom to top. This overall posture of the corrugated sheet allows the bottom corrugated sheet to be conveyed out very smoothly and individually, effectively avoiding multiple feeding and jamming. After the bottom corrugated sheet leaves the first conveyor belt 2, it enters the second conveying mechanism 3. When the corrugated plate is conveyed by the second conveying mechanism 3 to the inclined conveying section, it slides backward under the combined action of gravity and inertia until its rear end abuts against the stop block behind it, and is then pushed upward by the stop block.
[0041] The beneficial effects of this utility model are:
[0042] 1. By actively applying pressure mechanically, a tilt is forcibly formed, resulting in a stable and reliable effect that is unaffected by fluctuations in the surface characteristics of the corrugated board.
[0043] 2. By adjusting the number and installation position of the counterweights, the magnitude and point of application of the downward pressure can be flexibly adjusted to adapt to corrugated boards of different materials, quantities, and sizes.
[0044] 3. The core component consists of only one or a few elastic baffles with counterweights. The structure is very simple, the manufacturing cost is low, and it is easy to install and maintain. This improvement scheme only adds a few components to the existing conveying mechanism. The structure is simple, the manufacturing cost is low, the installation and maintenance are convenient, and the reliability is high. It is very suitable for upgrading existing packing machines.
[0045] 4. The counterweight mounting structure is located above the stop bar, ensuring that the lower surface in contact with the corrugated sheet is smooth and flat, avoiding the risk of scratching the corrugated sheet.
[0046] 5. It solved the problems of multiple feeds and jamming, greatly improving the operating efficiency and stability of the entire production line.
[0047] The present invention has been described in detail above through embodiments. However, those skilled in the art will understand that the above embodiments are only one of the preferred embodiments of the present invention. Due to space limitations, not all embodiments can be listed here. Any implementation that can embody the technical solution of the claims of the present invention is within the protection scope of the present invention.
[0048] It should be noted that the above content is a further detailed description of the present utility model in conjunction with specific embodiments, and it should not be considered that the specific embodiments of the present utility model are limited to this. Under the guidance of the above embodiments, those skilled in the art can make various improvements and modifications based on the above embodiments, and these improvements or modifications fall within the protection scope of the present utility model.
Claims
1. A cartoner paperboard conveying device, comprising a pusher mechanism, a horizontally arranged first conveying mechanism and an obliquely arranged second conveying mechanism connected in sequence along a corrugated board conveying path, the first conveying mechanism being arranged below the side end of the pusher mechanism to receive the pushed corrugated board stack; the two sides of the conveying surface of the second conveying mechanism are provided with stop blocks for pushing the corrugated board; characterized in that: At least one baffle is provided above the first conveying mechanism. The baffle is made of a flexible metal plate, one end of which is a fixed end, which is directly or indirectly fixed to the frame above the inlet side of the first conveying mechanism. The other end is a free end, which extends downward at an angle along the conveying direction of the first conveying mechanism and is suspended above the conveying surface of the first conveying mechanism. Several fixed seats are provided at intervals on the upper surface of the baffle near the free end. The counterweight is detachably installed on the baffle through the fixed seats.
2. The carton board conveying device for a carton packing machine according to claim 1, characterized in that: The conveying device further includes a guide rail disposed above the first conveying mechanism and arranged laterally thereon, and a slider slidably disposed on the guide rail; the fixed end of the stop bar is fixedly installed on the slider, and the position of the stop bar relative to the width of the conveying path can be adjusted by adjusting the position of the slider on the guide rail.
3. The carton board conveying device for a carton packing machine according to claim 1, characterized in that: The fixing base is a vertical plate erected on the upper surface of the baffle, and the plate surface is arranged along the width direction of the baffle; the counterweight block is provided with a slot that matches the shape of the fixing base and is fixedly connected to the fixing base by a set screw.
4. The carton board conveying device for a case packing machine according to claim 3, characterized in that: The number of fixed seats is multiple. The operator can adjust the downward pressure, deformation curve, and minimum distance between the free end of the stop bar and the conveying surface of the first conveying mechanism by selecting the fixed seats at different positions and selecting the number of counterweights to install.
5. The carton board conveying device for a carton packing machine according to claim 1, characterized in that: The lower surface of the baffle is a smooth plane.
6. The carton board conveying device for a case packing machine according to claim 1, characterized in that: The number of the baffles is two or more, arranged in parallel at intervals along the width direction perpendicular to the conveying direction, and working together on different areas of the same corrugated board.