A paperboard creasing device

Abstract

The application belongs to the technical field of paperboard processing equipment, and particularly relates to a paperboard indentation device, which comprises a rack, a processing platform arranged on the surface of the rack, a supporting frame arranged on the rack, an indentation mechanism arranged on the supporting frame and comprising a linear driver, a cantilever connected with the linear driver and a plurality of pressing wheels arranged at the bottom of the cantilever, and a pressing mechanism arranged on both sides of the processing platform and used for pressing the paperboard and detecting the thickness of the paperboard. The paperboard indentation device further comprises a controller connected with the indentation mechanism and the pressing mechanism. The controller can control the operation of the linear driver according to the thickness of the paperboard fed back by the pressing mechanism, and the linear driver can drive the pressing wheels to move up and down according to the signal.

Description

Technical Field

[0001] This application belongs to the technical field of paperboard processing equipment, and particularly relates to a paperboard creasing device. Background Technology

[0002] In the paperboard processing industry, creasing is a key process widely used in the production processes of packaging, printing, and other related industries. To meet the processing needs of paperboard of different specifications, existing paperboard creasing devices on the market usually have height adjustment functions. By adjusting the height distance between the creasing component and the conveyor table, and in conjunction with the speed control of the conveyor mechanism, creasing processing of paperboard at different travel speeds can be achieved.

[0003] However, existing cardboard creasing devices still have many shortcomings in practical applications. Current creasing devices, whether using roller-type creasing structures or stamping-type creasing components, primarily focus on adjusting the overall height and conveyor speed. Once the initial adjustment is complete, it becomes difficult to adapt to changes in cardboard thickness during continuous processing. In actual production scenarios, cardboard in the same batch often exhibits uneven thickness due to differences in raw material batches and processing technology fluctuations. Some cardboard may even be conveyed with alternating thicknesses. Existing devices cannot adjust key parameters such as creasing force and depth in real time for the actual thickness of each cardboard sheet, and can only use the same set of creasing settings to complete the processing.

[0004] For thinner cardboard, using the same creasing parameters as for thicker cardboard can easily lead to excessively deep creasing, causing damage and breakage of the cardboard and affecting the product qualification rate. On the other hand, for thicker cardboard, using creasing settings designed for thinner cardboard can result in creasing that is too shallow, making it difficult to fold along the creasing line, or even causing the creasing to fail. This cannot meet the requirements of subsequent processing for the folding performance of the cardboard, and improvements are needed. Utility Model Content

[0005] The purpose of this application is to provide a cardboard creasing device that can solve the above-mentioned problems.

[0006] The purpose of this application is to provide a cardboard creasing device, comprising: The frame has a processing platform on its surface; Support frame, mounted on the machine frame; The indentation mechanism, mounted on a support frame, includes a linear actuator, a cantilever connected to the linear actuator, and multiple pressure rollers mounted at the bottom of the cantilever. The clamping mechanism, located on both sides of the processing platform, is used to clamp the cardboard and detect its thickness; It also includes a controller, which is connected to the creasing mechanism and the pressing mechanism. The controller can control the operation of the linear drive based on the paperboard thickness feedback from the pressing mechanism, and the linear drive drives the pressure roller to move up and down according to the signal.

[0007] The existing cardboard creasing device described above often suffers from problems such as shallow creasing on thick cardboard and excessive creasing on thin cardboard because it cannot adjust the creasing parameters sequentially according to the cardboard thickness. Furthermore, it requires frequent machine stops for manual adjustment, resulting in low efficiency. In this application, the frame provides support, the processing platform ensures stable cardboard transport, and the support frame provides the mounting base for the creasing and pressing mechanisms. The creasing mechanism uses a linear actuator to move the cantilever and pressure roller up and down, achieving adjustment of the creasing depth. The pressing mechanism not only presses the cardboard to prevent deviation during transport but also detects the cardboard thickness in real time. The linear actuator can be an electric cylinder or similar drive.

[0008] After receiving the thickness signal from the pressing mechanism, the controller drives the linear driver to adjust the position of the pressure roller. This solves the problem of not being able to change the creasing parameters sequentially according to the thickness of the cardboard. It can avoid the problem of folding failure due to too shallow creasing or cardboard breakage due to too deep creasing, and can also reduce the frequency of machine downtime for adjustment, improve production efficiency, and adapt to the continuous processing needs of cardboard of different thicknesses.

[0009] Furthermore, the clamping mechanism includes: The cylinder is mounted on the side wall of the support frame; The mounting bracket has multiple guide wheels installed at its bottom; The regulator has one end connected to the mounting bracket and the other end connected to the cylinder; The cylinder drives the mounting bracket to move up and down via an adjuster. The adjuster is connected to the controller and feeds back the data on the contact between the guide wheel and the cardboard to the controller.

[0010] In this application, a cylinder provides driving force to the mounting frame. Multiple guide rollers at the bottom of the mounting frame can contact the surface of the cardboard, preventing the cardboard from shifting or wrinkling during transport through a pressing action, ensuring accurate indentation positioning, and also allowing real-time detection of thickness information through the contact between the guide rollers and the cardboard. An adjuster connects the cylinder and the mounting frame, feeding back the data on the contact between the guide rollers and the cardboard to the controller. Simultaneously, the overall structure of the device is simplified. The cylinder drives the mounting frame up and down via the adjuster, adapting to the pressing requirements of cardboard of different thicknesses and avoiding problems such as deformation of thin cardboard under pressure or insufficient pressing of thick cardboard.

[0011] Furthermore: the regulator includes a cylinder and a rod, one end of the rod is located inside the cylinder and forms a telescopic structure with the cylinder, the end of the rod away from the cylinder is connected to the mounting bracket, and the end of the cylinder away from the rod is connected to the output shaft of the cylinder.

[0012] In this application, one end of the regulator's rod is located inside the cylinder and forms a telescopic structure. The end of the rod away from the cylinder is connected to the mounting bracket, and the end of the cylinder away from the rod is connected to the cylinder output shaft. This telescopic structure ensures the linearity of the mounting bracket as it moves up and down with the cylinder drive, preventing the rod from shifting and causing misalignment of the guide wheel, thus ensuring that the guide wheel always maintains stable contact with the cardboard surface. Simultaneously, the cylinder provides a protective enclosure for the rod, reducing the entry of impurities into the regulating structure and extending its service life. Furthermore, the telescopic structure design allows for better detection and feedback of the cardboard thickness.

[0013] Furthermore, the regulator also includes: A cavity is provided inside a cylinder, and a partition is provided inside the cylinder to divide the cavity into a first cavity and a second cavity; An adjusting plate is slidably disposed in the first cavity, with its top connected to a rod and its bottom provided with an adjusting rod that extends through to the second cavity; A sliding sleeve is slidably mounted on an adjusting rod, and a first spring connected to an adjusting plate is mounted on its top. The second spring has its two ends connected to the adjusting plate and the partition plate, respectively. The bottom of the first spring and the top of the partition are respectively equipped with touch plates connected to the controller. After the two touch plates come into contact, the controller controls the linear driver to make fine adjustments.

[0014] In this application, when the guide wheel contacts a cardboard of any required thickness, the guide wheel is pressed, causing the rod to move. The rod then moves the adjusting plate, which in turn moves one of the contact plates via a first spring. Eventually, the two contact plates come into contact with each other, at which point the controller drives the linear actuator to operate. Simultaneously, by installing a sliding sleeve outside the guide rod, it can limit and guide the vertical movement, preventing the sliding sleeve from deviating during movement. Furthermore, by installing a second spring, when the guide wheel is not in contact with the cardboard, the adjusting plate gradually resets under the influence of the second spring, facilitating continued use.

[0015] Furthermore, it also includes: A guide plate is disposed in the second cavity and can slide within the second cavity; the top of the contact plate is connected to the guide rod. The resistance wire is disposed on the side wall of the second cavity; The contacts are located on the side wall of the guide plate and are in contact with the resistance wire; The guide plate moves up and down in the second cavity under the action of the adjusting rod, while the contact point slides on the resistance wire due to the influence of the guide plate.

[0016] In this application, when the two contact plates come into contact, the linear actuator drives the pressure roller to move and perform creasing on the cardboard. As the thickness of the cardboard changes, if there is cardboard to be processed later, the guide roller will continue to drive the rod to move, causing the adjustment plate to continue to move. At this time, the contact point comes into contact with the resistance wire. As the contact point moves on the resistance wire, the position of the contact point on the resistance wire changes, thereby changing the magnitude of the current passing through the resistance wire. As the current changes, the controller drives the linear actuator to move. When the cardboard becomes thicker, the current increases, causing the linear actuator to drive the pressure roller to move downward. When the cardboard becomes thinner, the current decreases, causing the linear actuator to drive the pressure roller to move upward. This setting can effectively avoid the problem of breakage caused by the creasing being too shallow or too deep.

[0017] Furthermore, a third spring is provided at the bottom of the guide plate, the other end of the third spring is connected to the bottom of the second cavity, and a limiting ring groove for limiting the third spring is provided at the bottom of the second cavity.

[0018] By installing a third spring at the bottom of the guide plate, a buffer can be provided when the guide plate moves downward. When the guide plate moves downward due to the influence of the adjusting rod, the installation of the third spring can prevent the guide plate from directly contacting the bottom of the second cavity. In addition, the installation of the third spring can also assist in the reset of the overall structure and continue to be used in the future.

[0019] The beneficial effects of this application are: 1. After receiving the thickness signal from the pressing mechanism, the controller drives the linear driver to adjust the position of the pressure roller, which solves the problem that the creasing parameters cannot be changed sequentially with the thickness of the cardboard. This avoids the problem of folding failure due to too shallow creasing or cardboard breakage due to too deep creasing. 2. By changing the position of the contacts on the resistance wire, the magnitude of the current passing through the resistance wire is changed. As the current changes, the controller drives the linear actuator to move. As the thickness of the cardboard changes, the current changes accordingly, and the height of the drive pressure roller is changed, effectively avoiding the problem of breakage caused by too shallow or too deep indentation. 3. By installing a second spring, when the guide wheel is not in contact with the cardboard, the adjusting plate is gradually reset by the influence of the second spring, which facilitates subsequent use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the pressing mechanism of this utility model; Figure 3 yes Figure 2 A magnified view of A in the middle.

[0021] The reference numerals in the figure are as follows: 100, frame; 110, processing platform; 200, support frame; 300, indentation mechanism; 310, linear actuator; 320, cantilever; 330, pressure roller; 500, cylinder; 510, mounting bracket; 520, guide wheel; 600, cylinder; 610, rod; 620, cavity; 621, first cavity; 622, second cavity; 623, partition; 630, adjusting plate; 640, adjusting rod; 650, sliding sleeve; 651, first spring; 652, second spring; 660, contact plate; 670, guide plate; 671, contact point; 680, resistance wire; 690, third spring. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0023] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0024] The cardboard creasing device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0025] Example 1: like Figures 1 to 3 As shown, this application provides a cardboard creasing device, including: The frame 100 has a processing platform 110 on its surface; Support frame 200 is mounted on frame 100; The indentation mechanism 300 is mounted on the support frame 200 and includes a linear driver 310, a cantilever 320 connected to the linear driver 310, and a plurality of pressure rollers 330 mounted on the bottom of the cantilever 320. A pressing mechanism is installed on both sides of the processing platform 110 to press the cardboard and detect the thickness of the cardboard; It also includes a controller, which is connected to the creasing mechanism 300 and the pressing mechanism. The controller can control the operation of the linear driver 310 based on the paperboard thickness feedback from the pressing mechanism. The linear driver 310 drives the pressure roller 330 to move up and down according to the signal.

[0026] In some embodiments of this application, such as Figure 1 As shown, existing cardboard creasing devices, due to their inability to adjust creasing parameters sequentially according to cardboard thickness, often result in shallow creasing on thick cardboard and excessively deep creasing on thin cardboard, requiring frequent machine stops for manual adjustment, leading to low efficiency. In this application, the frame 100 provides support, the processing platform 110 ensures stable cardboard transport, and the support frame 200 provides a mounting base for the creasing mechanism 300 and the pressing mechanism. The creasing mechanism 300 uses a linear actuator 310 to drive the cantilever 320 and the pressure roller 330 to move up and down, thereby adjusting the creasing depth. The pressing mechanism not only presses the cardboard to prevent deviation during transport but also detects the cardboard thickness in real time. Here, the linear actuator 310 can be an electric cylinder or other actuator.

[0027] After receiving the thickness signal from the pressing mechanism, the controller drives the linear driver 310 to adjust the position of the pressure roller 330. This solves the problem of not being able to change the creasing parameters sequentially according to the thickness of the cardboard. It can avoid the problem of folding failure due to too shallow creasing or cardboard breakage due to too deep creasing. It can also reduce the frequency of machine downtime for adjustment, improve production efficiency, and adapt to the continuous processing needs of cardboard of different thicknesses.

[0028] Example 2: This application provides a cardboard creasing device, which, in addition to the above-mentioned technical features, also includes the following technical features.

[0029] like Figures 1 to 3 As shown, the clamping mechanism includes: Cylinder 500 is mounted on the side wall of support frame 200; Mounting bracket 510, with multiple guide wheels 520 mounted on its bottom; The regulator is connected at one end to the mounting bracket 510 and at the other end to the cylinder 500; The cylinder 500 drives the mounting bracket 510 to move up and down via an adjuster. The adjuster is connected to the controller and feeds back the data of the contact between the guide wheel 520 and the cardboard to the controller.

[0030] In this embodiment, the cylinder 500 provides driving force to the mounting frame 510. Multiple guide wheels 520 at the bottom of the mounting frame 510 can contact the surface of the cardboard, preventing displacement and wrinkling of the cardboard during transport through a pressing action, ensuring accurate indentation positioning, and allowing real-time detection of thickness information through the contact between the guide wheels 520 and the cardboard. An adjuster connects the cylinder 500 and the mounting frame 510, feeding back data on the contact between the guide wheels 520 and the cardboard to the controller. Simultaneously, the overall structure of the device is simplified. The cylinder 500 drives the mounting frame 510 up and down via the adjuster, adapting to the pressing requirements of cardboard of different thicknesses and avoiding problems such as deformation of thin cardboard under pressure or insufficient pressing of thick cardboard.

[0031] Furthermore: the regulator includes a cylinder 600 and a rod 610, one end of the rod 610 is located inside the cylinder 600 and forms a telescopic structure with the cylinder 600, the end of the rod 610 away from the cylinder 600 is connected to the mounting bracket 510, and the end of the cylinder 600 away from the rod 610 is connected to the output shaft of the cylinder 500.

[0032] In this application, one end of the regulator's rod 610 is located inside the cylinder 600 and forms a telescopic structure. The end of the rod 610 away from the cylinder 600 is connected to the mounting bracket 510, and the end of the cylinder 600 away from the rod 610 is connected to the output shaft of the cylinder 500. This telescopic structure ensures the linearity of the mounting bracket 510 when it moves up and down with the cylinder 500, preventing the rod 610 from shifting and causing the guide wheel 520 to become misaligned, thus ensuring that the guide wheel 520 is always in stable contact with the cardboard surface. At the same time, the cylinder 600 provides a protective enclosure for the rod 610, reducing the entry of impurities into the regulating structure and extending its service life. In addition, the design of the telescopic structure allows for better detection of the cardboard thickness and provides feedback accordingly.

[0033] Example 3: This application provides a cardboard creasing device, which, in addition to the above-mentioned technical features, also includes the following technical features.

[0034] like Figure 2 river Figure 3 As shown, the regulator also includes: A cavity 620 is disposed inside a cylindrical body 600, and a partition 623 is disposed inside the cylindrical body 600 to divide the cavity 620 into a first cavity 621 and a second cavity 622. An adjusting plate 630 is slidably disposed in the first cavity 621, its top is connected to the rod 610, and its bottom is provided with an adjusting rod 640 that extends through to the second cavity 622; A sliding sleeve 650 is slidably mounted on an adjusting rod 640, and a first spring 651 connected to an adjusting plate 630 is mounted on its top. The second spring 652 has its two ends connected to the adjusting plate 630 and the partition plate 623, respectively. The bottom of the first spring 651 and the top of the partition 623 are respectively provided with a touch plate 660 connected to the controller. After the two touch plates 660 come into contact, the controller controls the linear driver 310 to make fine adjustments.

[0035] In this embodiment, when the guide wheel 520 contacts a cardboard of any required thickness, the guide wheel 520 is pressed, causing the rod 610 to move. The rod 610 then moves the adjusting plate 630. The adjusting plate 630, through the first spring 651, moves one of the contact plates 660, eventually causing the two contact plates 660 to contact each other. At this point, the controller drives the linear actuator 310 to operate. Simultaneously, by installing the sliding sleeve 650 outside the guide rod, it can limit and guide the movement up and down, preventing the sliding sleeve 650 from deviating during movement. Furthermore, by installing the second spring 652, when the guide wheel 520 is not in contact with the cardboard, the adjusting plate 630 gradually resets under the influence of the second spring 652, facilitating subsequent continued use.

[0036] Example 4: This application provides a cardboard creasing device, which, in addition to the above-mentioned technical features, also includes the following technical features.

[0037] like Figure 3 As shown, it also includes: The guide plate 670 is disposed in the second cavity 622 and can slide within the second cavity; the top of the contact plate 660 is connected to the guide rod. A resistance wire 680 is disposed on the side wall of the second cavity; Contact 671 is disposed on the side wall of guide plate 670 and contacts resistance wire 680; The guide plate 670 moves up and down in the second cavity 622 under the action of the adjusting rod 640, while the contact 671 slides on the resistance wire 680 under the influence of the guide plate 670.

[0038] In this embodiment, when the two contact plates 660 come into contact, the linear actuator 310 drives the pressure roller 330 to move and perform creasing on the cardboard. As the thickness of the cardboard changes, if there is cardboard to be processed later, the guide roller 520 will continue to drive the rod 610 to move, causing the adjustment plate 630 to continue to move. At this time, the contact point 671 comes into contact with the resistance wire 680. As the contact point 671 moves on the resistance wire 680, the position of the contact point 671 on the resistance wire 680 changes, thereby changing the magnitude of the current passing through the resistance wire 680. As the current changes, the controller drives the linear actuator 310 to move. When the cardboard becomes thicker, the current increases, causing the linear actuator 310 to drive the pressure roller 330 to move downward. When the cardboard becomes thinner, the current decreases, causing the linear actuator 310 to drive the pressure roller 330 to move upward. This setting can effectively avoid the problem of breakage caused by the creasing being too shallow or too deep.

[0039] Furthermore, a third spring 690 is provided at the bottom of the guide plate 670, the other end of the third spring 690 is connected to the bottom of the second cavity 622, and a limiting ring groove for limiting the third spring 690 is provided at the bottom of the second cavity 622.

[0040] By installing a third spring 690 at the bottom of the guide plate 670, a buffer can be provided when the guide plate 670 moves downward. When the guide plate 670 moves downward due to the influence of the adjusting rod 640, the installation of the third spring 690 can prevent the guide plate 670 from directly contacting the bottom of the second cavity 622. In addition, the installation of the third spring 690 can also assist in the reset of the overall structure and continue to be used in the future.

[0041] It should be noted that, in this document, 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 that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0042] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A cardboard creasing device, characterized in that: include: A frame (100) has a processing platform (110) on its surface; A support frame (200) is mounted on the frame (100); The indentation mechanism (300) is mounted on the support frame (200) and includes a linear actuator (310), a cantilever (320) connected to the linear actuator (310), and a plurality of pressure rollers (330) mounted on the bottom of the cantilever (320); A pressing mechanism is located on both sides of the processing platform (110) and is used to press the cardboard and detect its thickness. It also includes a controller, which is connected to the creasing mechanism (300) and the pressing mechanism. The controller can control the operation of the linear drive (310) based on the paperboard thickness fed back by the pressing mechanism. The linear drive (310) drives the pressure roller (330) to move up and down according to the signal.

2. The cardboard creasing device according to claim 1, characterized in that: The clamping mechanism includes: Cylinder (500) is mounted on the side wall of support frame (200); Mounting bracket (510), with multiple guide wheels (520) mounted on its bottom; The regulator is connected at one end to the mounting bracket (510) and at the other end to the cylinder (500); The cylinder (500) drives the mounting bracket (510) to move up and down through the regulator. The regulator is connected to the controller and feeds back the data of the contact between the guide wheel (520) and the cardboard to the controller.

3. The cardboard creasing device according to claim 2, characterized in that: The regulator includes a cylinder (600) and a rod (610). One end of the rod (610) is located inside the cylinder (600) and forms a telescopic structure with the cylinder (600). The end of the rod (610) away from the cylinder (600) is connected to the mounting bracket (510), and the end of the cylinder (600) away from the rod (610) is connected to the output shaft of the cylinder (500).

4. The cardboard creasing device according to claim 3, characterized in that: The regulator also includes: A cavity (620) is provided inside a cylindrical body (600), and a partition (623) is provided inside the cylindrical body (600) to divide the cavity (620) into a first cavity (621) and a second cavity (622); An adjusting plate (630) is slidably disposed in the first cavity (621), its top is connected to the rod (610), and its bottom is provided with an adjusting rod (640) that extends through to the second cavity (622); A sliding sleeve (650) is slidably mounted on an adjusting rod (640), and its top is provided with a first spring (651) connected to an adjusting plate (630); The second spring (652) is connected at both ends to the adjusting plate (630) and the partition plate (623), respectively; The bottom of the first spring (651) and the top of the partition (623) are respectively provided with a touch plate (660) connected to the controller. After the two touch plates (660) come into contact, the controller controls the linear driver (310) to make fine adjustments.

5. The cardboard creasing device according to claim 4, characterized in that: Also includes: A guide plate (670) is disposed in the second cavity (622) and can slide within the second cavity; the top of the contact plate (660) is connected to the guide rod. A resistance wire (680) is disposed on the side wall of the second cavity; Contact (671) is disposed on the side wall of guide plate (670) and contacts resistance wire (680); The guide plate (670) moves up and down in the second cavity (622) under the action of the adjusting rod (640), while the contact (671) slides on the resistance wire (680) under the influence of the guide plate (670).

6. The cardboard creasing device according to claim 5, characterized in that: The bottom of the guide plate (670) is provided with a third spring (690), the other end of the third spring (690) is connected to the bottom of the second cavity (622), and the bottom of the second cavity (622) is provided with a limiting ring groove for limiting the third spring (690).

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