A flattening device for carton production

Abstract

The application relates to a flattening device for carton production, which comprises a frame body, a conveyor for conveying carton boards arranged on the frame body, a plurality of guide rollers arranged along the length of the conveyor in sequence, a flattening mechanism arranged on the frame body and used for flattening the carton boards, characterized in that a heat source roller is arranged above the conveyor and used for hot pressing the carton boards, and a driving member is arranged on the frame body and used for driving the heat source roller to rotate. The flattening device can be used in cooperation with the heat source roller, the driving member and the flattening mechanism, the carton boards can be hot-pressed before being flattened, the carton boards are subjected to the joint action of heat and pressure, the flexibility of the carton boards is reduced, the resilience of the carton boards is weakened, the required pressure and time for subsequent flattening are reduced, the carton boards can reach the flatness requirement through one or a small number of flattening operations, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of cardboard flattening technology, and in particular to a flattening device for carton production. Background Technology

[0002] In the cardboard box manufacturing industry, the flattening process after cardboard board forming is one of the production steps. After the forming process, the surface of the cardboard board is often uneven, which will affect the subsequent folding, gluing and overall strength of the cardboard box. Therefore, the cardboard board must be flattened to meet the specified flatness standards to meet the requirements of the cardboard box in packaging, transportation and other stages.

[0003] Currently, existing cardboard flattening equipment on the market can perform cardboard flattening operations to a certain extent. However, most flattening equipment cannot perform auxiliary heat flattening. When flattening cardboard at room temperature, due to the flexibility and resilience of cardboard material, it is difficult to achieve the ideal flatness in a short time by relying solely on mechanical pressure. This is especially true when processing some thicker or harder cardboard, where the effect of room temperature flattening is affected, often requiring multiple flattening processes, increasing production time and reducing production efficiency.

[0004] To address the aforementioned issues, a flattening device for cardboard box production is now designed. Utility Model Content

[0005] This application provides a flattening device for carton production to solve the problem that most flattening equipment in the related technology cannot perform auxiliary heating flattening. When flattening carton boards at room temperature, the effect of room temperature flattening is affected when processing some thick or hard carton boards, often requiring multiple flattening processes, which increases production time and reduces production efficiency.

[0006] In a first aspect, a flattening device for carton production is provided, comprising:

[0007] A frame is provided with a conveyor for conveying cardboard boxes. Multiple guide rollers are arranged sequentially along the length of the conveyor. A flattening mechanism is provided on the frame for flattening the cardboard boxes. A heat source roller is provided above the conveyor for heat pressing the cardboard boxes. A driving component is provided on the frame for driving the heat source roller to rotate. The heat source roller and the flattening mechanism are arranged sequentially along the conveying direction of the conveyor.

[0008] In some embodiments, the conveyor includes a loading end and a unloading end, with the carton board being conveyed along the loading end to the unloading end, and the heat source roller being located on the side near the loading end.

[0009] In some embodiments, the conveyor includes mounting plates disposed opposite each other on the frame, two drive rollers rotatably disposed between the two mounting plates, a support plate disposed between the two mounting plates, and a conveyor belt drivingly connected between the outer sides of the two drive rollers, with the upper and lower sides of the inside of the conveyor belt respectively abutting against the upper and lower sides of the support plate.

[0010] A drive motor and a reducer are provided on one side of the mounting plate. The output shaft of the drive motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to one end of any of the drive rollers.

[0011] In some embodiments, the guide roller includes two fixed plates disposed opposite each other on a mounting plate, a guide rod rotatably connected between the two fixed plates, and a gap between the guide rod and the conveyor belt for conveying the cardboard.

[0012] In some embodiments, the heat source roller includes a flattening roller arranged above the conveyor belt, the flattening roller having an electric heating rod disposed inside it.

[0013] In some embodiments, the driving component includes a column mounted on a frame, a second drive motor mounted on the column, a rotating shaft rotatably mounted on the column, and pulleys mounted on one end of the rotating shaft and the output shaft of the second drive motor, with belt drive between the two pulleys.

[0014] The other end of the rotating shaft is connected to the flattening roller.

[0015] In some embodiments, the flattening mechanism includes a mounting frame mounted on a frame body, the mounting frame being located above the conveyor, a cylinder being mounted on the mounting frame, two guide rods being inserted opposite each other on the mounting frame, a pressing plate being arranged inside the mounting frame above the conveyor belt, the bottom ends of the guide rods being connected to the pressing plate, the bottom end of the piston rod of the cylinder being connected to the pressing plate, and the pressing plate being located directly above the pressing plate.

[0016] This application provides a flattening device for carton production. By using a heat source roller, a driving component, and a flattening mechanism in combination, the carton board can be heat-pressed before flattening. Under the combined action of heat and pressure, the carton board's flexibility is reduced and its resilience is weakened, which reduces the pressure and time required for subsequent flattening. Only one or a few flattening operations are needed to make the carton board meet the flatness requirements, thereby improving production efficiency.

[0017] The hot pressing process using heat source rollers can release and redistribute the stress inside the cardboard, making the cardboard more evenly stressed during the flattening process. At the same time, the cardboard is easier to flatten after hot pressing, reducing defects such as wear and scratches on the cardboard surface caused by repeated flattening, and improving the appearance quality of the cardboard. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A three-dimensional structural illustration provided for an embodiment of this application. Figure 1 ;

[0020] Figure 2 A three-dimensional structural illustration provided for an embodiment of this application. Figure 2 ;

[0021] Figure 3 A three-dimensional schematic diagram of the connection structure between the drive component and the heat source roller provided in the embodiments of this application;

[0022] Figure 4 Right view provided for an embodiment of this application;

[0023] Figure 5 A three-dimensional schematic diagram of a conveyor provided for an embodiment of this application.

[0024] In the diagram: 1. Frame; 2. Conveyor; 3. Guide roller; 4. Heat source roller; 5. Drive component; 6. Flattening mechanism; 21. Feeding end; 22. Discharging end; 23. Mounting plate; 24. Drive roller; 25. Conveyor belt; 26. Drive motor; 27. Reducer; 28. Support plate; 31. Fixing plate; 32. Guide rod; 41. Flattening roller; 42. Electric heating rod; 51. Column; 52. Drive motor II; 53. Rotating shaft; 54. Pulley; 61. Mounting frame; 62. Cylinder; 63. Guide rod; 64. Flattening plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] This application provides a flattening device for carton production, which solves the problem that most flattening equipment in related technologies cannot perform auxiliary heating flattening. When flattening carton boards at room temperature, the effect of warm flattening is affected, and multiple flattening processes are often required, which increases production time and reduces production efficiency.

[0027] Please see Figures 1-3 A flattening device for carton production includes: a frame 1 on which a conveyor 2 for conveying carton boards is mounted; a plurality of guide rollers 3 are arranged sequentially along the length of the conveyor 2; a flattening mechanism 6 on the frame 1 for flattening the carton boards; a heat source roller 4 above the conveyor 2 for heat pressing the carton boards; and a driving component 5 on the frame 1 for driving the heat source roller 4 to rotate. The heat source roller 4 and the flattening mechanism 6 are arranged sequentially along the conveying direction of the conveyor 2.

[0028] The cardboard to be flattened is placed on conveyor 2 and transported by conveyor 2. During the transport process, multiple guide rollers 3 play a role in guiding and constraining the cardboard, ensuring that the cardboard is transported smoothly and in a straight line.

[0029] When the carton board is conveyed to the area below the heat source roller 4, the heat source roller 4 starts to work. The drive unit 5 drives the heat source roller 4 to rotate. The rotating heat source roller 4 heats and presses the carton board below it, so that the carton board's flexibility is reduced and its resilience is weakened under the combined action of heat and pressure. The carton board that has undergone heat pressing continues to be conveyed forward by the conveyor 2. When it reaches the area below the flattening mechanism 6, the flattening mechanism 6 starts to work and flattens the carton board below it.

[0030] By using the heat source roller 4, drive component 5 and flattening mechanism 6 together, the carton board can be heat-pressed before flattening. Under the combined action of heat and pressure, the carton board's flexibility is reduced and its resilience is weakened, which reduces the pressure and time required for subsequent flattening. Only one or a few flattening operations are needed to make the carton board meet the flatness requirements, thus improving production efficiency.

[0031] The hot pressing process of the heat source roller 4 can release and redistribute the stress inside the carton board, making the carton board more evenly stressed during the flattening process. At the same time, the carton board after hot pressing is easier to flatten, reducing defects such as wear and scratches on the carton board surface caused by repeated flattening, and improving the appearance quality of the carton board.

[0032] like Figure 1 and Figure 2As shown, it should be noted that the conveyor 2 includes a feeding end 21 and a discharging end 22. The carton board is conveyed along the feeding end 21 to the discharging end 22, and the heat source roller 4 is located on the side close to the feeding end 21.

[0033] The operator places the cardboard to be flattened on the feeding end 21 of the conveyor 2. After the conveyor 2 is started, it begins to be conveyed to the unloading end 22 of the conveyor 2.

[0034] The heat source roller 4 is located on the side close to the feeding end 21, so that the carton board can be quickly subjected to heat pressing treatment as soon as it enters the conveyor 2.

[0035] like Figure 1 and Figure 5 As shown, in one embodiment, the conveyor 2 includes mounting plates 23 disposed opposite to each other on the frame 1. Two drive rollers 24 are rotatably disposed between the two mounting plates 23. A support plate 28 is disposed between the two mounting plates 23. A conveyor belt 25 is drivenly connected between the outer sides of the two drive rollers 24. The upper and lower sides of the inside of the conveyor belt 25 are respectively attached to the upper and lower sides of the support plate 28. A drive motor 26 and a reducer 27 are disposed on one of the mounting plates 23. The output shaft of the drive motor 26 is connected to the input shaft of the reducer 27. The output shaft of the reducer 27 is connected to one end of any of the drive rollers 24.

[0036] Place the cardboard to be flattened on the conveyor 2 near the feeding end 21. At this time, the conveyor 2 is in the ready-to-start state. The support plate 28 set between the two mounting plates 23 provides a stable support surface for the conveyor belt 25, ensuring that the conveyor belt 25 remains flat during operation.

[0037] When the equipment is started, the drive motor 26 begins to work. The output shaft of the drive motor 26 transmits power to the input shaft of the reducer 27 connected to it. The reducer 27 reduces the high-speed rotation output by the drive motor 26 and transmits the adjusted power to one end of any drive roller 24 through its output shaft. The drive roller 24 begins to rotate. The rotating drive roller 24 drives the conveyor belt 25 to start circulating through friction. During the operation of the conveyor belt 25, its upper and lower sides are in contact with the upper and lower sides of the support plate 28, respectively. The support plate 28 provides uniform support for the conveyor belt 25, preventing the conveyor belt 25 from sagging or deforming due to gravity when carrying cardboard boxes, thus ensuring the smooth operation of the conveyor belt 25.

[0038] The cardboard placed on the conveyor belt 25 is conveyed from the position near the loading end 21 to the unloading end 22 of the conveyor 2 as the conveyor belt 25 moves.

[0039] like Figure 1 and Figure 2As shown, in one embodiment, the guide roller 3 includes two fixed pieces 31 disposed opposite to each other on the mounting plate 23, and a guide rod 32 is rotatably connected between the two fixed pieces 31. A gap is left between the guide rod 32 and the conveyor belt 25 for conveying the carton board.

[0040] During the carton board conveying process, two fixed plates 31 rotatably connect the guide rod 32 between the two fixed plates 31. Since there is a gap between the guide rod 32 and the conveyor belt 25 for carton board conveying, when the carton board passes the position of the guide roller 3, the guide rod 32 will not have direct contact and friction with the conveyor belt 25, but will contact the carton board. Under the push of the carton board, the guide rod 32 will rotate around the connection point between itself and the two fixed plates 31, guiding the conveying direction of the carton board.

[0041] like Figure 3 As shown, in this embodiment, the heat source roller 4 includes a flattening roller 41 arranged above the conveyor belt 25, and an electric heating rod 42 is provided inside the flattening roller 41.

[0042] The heat source roller 4 is arranged near the feeding end 21 and above the conveyor belt 25. The electric heating rod 42 heats up rapidly after being powered on and transfers the heat generated to the roller body of the flattening roller 41. Since the flattening roller 41 is in direct contact with the carton board, the temperature of the flattening roller 41 gradually increases as the heat is continuously transferred, so as to perform heat pressing on the carton board.

[0043] When the carton board reaches below the heat source roller 4 under the drive of the conveyor belt 25, the drive unit 5 is activated, driving the heat source roller 4 to rotate. The rotating flattening roller 41 presses the carton board with a certain pressure, and at the same time, the heat transferred from the internal electric heating rod 42 is evenly applied to the surface of the carton board. Under the combined action of heat and pressure, the flexibility of the carton board is reduced and the resilience is weakened, making it easier to flatten the carton board in the subsequent flattening operation, and the flattened shape can be maintained for a longer time, effectively improving the flattening quality of the carton board.

[0044] like Figure 2 and Figure 3 As shown, in one embodiment, the driving component 5 includes a column 51 mounted on the frame 1, a second drive motor 52 mounted on the column 51, and a rotating shaft 53 rotatably mounted on the column 51. One end of the rotating shaft 53 and the output shaft of the second drive motor 52 are both provided with pulleys 54, and the two pulleys 54 are driven by a belt. The other end of the rotating shaft 53 is connected to the flattening roller 41.

[0045] When the carton board is about to reach the heat source roller 4 for heat pressing, the second drive motor 52 starts to work. After the second drive motor 52 starts, its output shaft starts to rotate. When the pulley 54 on the output shaft of the second drive motor 52 rotates, it will drive the belt to move, which in turn drives the pulley 54 at one end of the rotating shaft 53 to rotate, so that the rotating shaft 53 rotates on the column 51. The other end of the rotating shaft 53 is connected to the flattening roller 41. The rotation of the rotating shaft 53 will directly drive the flattening roller 41 to rotate.

[0046] By controlling the speed of the second drive motor 52, the rotation speed of the flattening roller 41 can be easily adjusted. In actual production, the operator can adjust the speed of the flattening roller 41 by adjusting the frequency of the inverter of the second drive motor 52 according to specific needs.

[0047] like Figure 4 As shown, the flattening mechanism 6 in this embodiment includes a mounting frame 61 mounted on the frame 1, located above the conveyor 2. A cylinder 62 is mounted on the mounting frame 61, and two guide rods 63 are inserted opposite each other on the mounting frame 61. A pressing plate 64, located above the conveyor belt 25, is arranged inside the mounting frame 61. The bottom ends of the guide rods 63 are connected to the pressing plate 64, and the bottom end of the piston rod of the cylinder 62 is connected to the pressing plate 64. The pressing plate 64 is located directly above the pressing plate 64. The mounting frame 61 has through holes for the extension of the guide rods 63 and the piston rod of the cylinder 62.

[0048] After receiving the control signal, cylinder 62 starts to work, and its piston rod extends downward. Under the push of the piston rod of cylinder 62, the pressing plate 64 moves smoothly downward along the length of guide rod 63, gradually approaches and finally presses on the carton board located above the conveyor belt 25. The pressing plate 64 applies a certain pressure to the carton board, so that it is further flattened to achieve the required flatness.

[0049] After the flattening operation is completed, the piston rod of cylinder 62 retracts upward, driving the pressing plate 64 to move upward along the guide rod 63 and return to the initial position. At this time, the carton board that has undergone both hot pressing and flattening is continued to be transported by conveyor belt 25 to the unloading end 22 of conveyor 2, completing the entire flattening process.

[0050] In the description of this application, it should be noted that the terms "upper," "lower," 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 application 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 application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0051] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A flattening device for carton production, comprising: A frame (1) is provided with a conveyor (2) for conveying cardboard. Multiple guide rollers (3) are arranged sequentially along the length of the conveyor (2). A flattening mechanism (6) is provided on the frame (1) for flattening the cardboard. The flattening mechanism (6) is used to flatten the cardboard. The heat source roller (4) is provided above the conveyor (2) for hot pressing the cardboard. A drive component (5) is provided on the frame (1) for driving the heat source roller (4) to rotate. The heat source roller (4) and the flattening mechanism (6) are arranged sequentially along the conveying direction of the conveyor (2).

2. The flattening device for carton production as described in claim 1, characterized in that: The conveyor (2) includes a loading end (21) and a unloading end (22). The carton board is conveyed along the loading end (21) to the unloading end (22). The heat source roller (4) is located on the side close to the loading end (21).

3. A flattening device for carton production as described in claim 1, characterized in that: The conveyor (2) includes mounting plates (23) arranged opposite to each other on the frame (1), two drive rollers (24) are rotatably arranged between the two mounting plates (23), a support plate (28) is arranged between the two mounting plates (23), and a conveyor belt (25) is connected between the outer sides of the two drive rollers (24). The upper and lower sides of the inside of the conveyor belt (25) are respectively attached to the upper and lower sides of the support plate (28). A drive motor (26) and a reducer (27) are provided on one side of the mounting plate (23). The output shaft of the drive motor (26) is connected to the input shaft of the reducer (27), and the output shaft of the reducer (27) is connected to one end of any of the drive rollers (24).

4. A flattening device for carton production as described in claim 3, characterized in that: The guide roller (3) includes two fixed plates (31) arranged opposite to each other on the mounting plate (23), and a guide rod (32) is rotatably connected between the two fixed plates (31). A gap is left between the guide rod (32) and the conveyor belt (25) for conveying the carton board.

5. A flattening device for carton production as described in claim 1, characterized in that: The heat source roller (4) includes a flattening roller (41) arranged above the conveyor belt (25), and an electric heating rod (42) is provided inside the flattening roller (41).

6. A flattening device for carton production as described in claim 5, characterized in that: The driving component (5) includes a column (51) mounted on the frame (1), a second drive motor (52) mounted on the column (51), a rotating shaft (53) rotatably mounted on the column (51), and pulleys (54) mounted on one end of the rotating shaft (53) and the output shaft of the second drive motor (52). The two pulleys (54) are driven by a belt. The other end of the rotating shaft (53) is connected to the flattening roller (41).

7. A flattening device for carton production as described in claim 3, characterized in that: The flattening mechanism (6) includes a mounting frame (61) set on the frame (1), the mounting frame (61) being located above the conveyor (2), a cylinder (62) being set on the mounting frame (61), two guide rods (63) being inserted opposite each other on the mounting frame (61), a pressing plate (64) being arranged inside the mounting frame (61) above the conveyor belt (25), the bottom end of the guide rod (63) being connected to the pressing plate (64), the bottom end of the piston rod of the cylinder (62) being connected to the pressing plate (64), and the pressing plate (64) being located directly above the pressing plate (64).

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