Adjustable paperboard creasing device

Abstract

The utility model provides an adjustable paperboard creasing device, and belongs to the technical field of paperboard processing. Comprising a U-shaped rack, a workbench is arranged in the middle of the U-shaped rack, an indentation mechanism is arranged between the U-shaped rack and located on the upper portion of the workbench, an indentation driving mechanism is arranged on the lower portion of the workbench and connected with one end of the indentation mechanism to drive the indentation mechanism to move up and down, and a scale adjusting mechanism is arranged on the rear portion of the workbench. The upper portion of the scale adjusting mechanism is provided with a multi-indentation combined limiting adjusting block, the multi-indentation combined limiting adjusting block is fixed to the scale adjusting mechanism in a position adjustable mode, and the front face, facing the indentation mechanism, of the multi-indentation combined limiting adjusting block is provided with a step limiting structure used for limiting multiple indentations at a time. According to the step limiting structure, the step limiting structure is used for limiting step by step when being used for processing a plurality of close creases on one part of the paperboard, so that the plurality of close creases on the paperboard are continuously, quickly and accurately folded, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cardboard processing, and particularly relates to an adjustable cardboard creasing device. Background Art

[0002] Cardboard is a commonly used packaging material. In the cardboard processing and packaging industries, it is often necessary to form precise creases on the cardboard to ensure the correct folding and assembly of products. In the actual use of cardboard packaging products, crease processing is a key step, which determines the foldability, stability and appearance quality of cardboard packaging. For traditional cardboard creasing devices, when processing several creases at a relatively close distance on the cardboard, it is impossible to accurately position each crease continuously, and usually manual operation is required, which is not only inefficient but also prone to problems such as inaccurate crease positions. Therefore, it is of great practical significance to develop a cardboard creasing device with high efficiency, precision and adjustable crease position. Content of the Utility Model

[0003] The technical problem solved by the utility model: Provide an adjustable cardboard creasing device. The purpose of the utility model is to be able to quickly and accurately position the creases on the cardboard, quickly complete the cardboard creasing process, and ensure that the position is accurately adjustable, greatly improving the efficiency and having strong practicability in view of the above-mentioned deficiencies of the prior art.

[0004] To achieve the above object, the technical solution adopted by the utility model is:

[0005] The adjustable cardboard creasing device includes a U-shaped frame. A workbench is provided in the middle of the U-shaped frame. A creasing mechanism is provided between the U-shaped frames. The creasing mechanism is located above the workbench. A creasing driving mechanism is provided below the workbench. The creasing driving mechanism is connected to one end of the creasing mechanism to drive the creasing mechanism to move up and down. A scale adjusting mechanism is provided at the rear of the workbench. A multi-crease combination limit adjusting block is provided above the scale adjusting mechanism. The multi-crease combination limit adjusting block is fixedly installed on the scale adjusting mechanism in an adjustable manner. The front surface of the multi-crease combination limit adjusting block facing the creasing mechanism is a step limit structure for realizing the limit of multiple creases at one time.

[0006] Among them, the multi-crease combination limit adjusting block includes a plurality of limit blocks. The plurality of limit blocks are stacked together and fixedly connected by fixing bolts. The models of the plurality of limit blocks decrease sequentially from bottom to top, and the surface facing the creasing mechanism forms a step limit structure.

[0007] Further, a vertical baffle is integrally formed at the rear of the lowermost limit block in the multi-crease combination limit adjusting block to form an L-shaped limit block. The vertical baffle at the rear of the L-shaped limit block is used for installing and limiting the rear parts of other limit blocks.

[0008] Furthermore, the scale adjustment mechanism is a scale plate. The front end of the scale plate is fixedly connected to the workbench, and scale values are provided on the upper part of the scale plate. Longitudinal slots are provided on the scale plate, and a lateral longitudinal slot is provided on one side of the scale plate. The length positions of the lateral longitudinal slot and the longitudinal slots correspond to each other, and the lateral longitudinal slot communicates with the longitudinal slots. A slider is provided at the lower part of the L-shaped limit block and the slider is slidably fitted in the longitudinal slots. A moving adjustment block is provided on one side of the slider and the moving adjustment block is fitted in the lateral longitudinal slot.

[0009] Wherein, a platform bracket is fixedly provided in front of the U-shaped frame, and the workbench is fixedly supported by the platform bracket.

[0010] Furthermore, the indentation driving mechanism includes a driving motor, two sets of crank-slider mechanisms, two eccentric driving gears, two transmission gears and a transmission shaft. The two eccentric driving gears are respectively rotatably supported on both sides of the U-shaped frame. The two eccentric driving gears are respectively fixedly connected to both ends of the indentation mechanism through two sets of crank-slider mechanisms. Wherein, the lower end of the crank in the crank-slider mechanism is eccentrically connected to the eccentric driving gear, and the slider in the crank-slider mechanism is fixedly connected to the indentation mechanism. The driving motor is fixed under the workbench, and the output shaft of the driving motor is fixedly connected to an eccentric driving gear. The transmission shaft is rotatably supported on the U-shaped frame, and transmission gears are fixed at both ends of the transmission shaft. The two transmission gears are respectively meshed with the two eccentric driving gears. Guide plates are provided on both sides of each end of the indentation mechanism, the guide plates are fixedly connected to the workbench, and rollers are provided on the contact surfaces of the guide plates and the indentation mechanism.

[0011] Furthermore, the indentation mechanism includes an indentation plate. One end of the indentation plate is connected to the indentation driving mechanism, and an indentation knife is provided on the lower side of the indentation plate. The indentation knife is made into various structures according to different crease shapes.

[0012] Furthermore, protective grille plates are provided in front of and behind the indentation mechanism, and both ends of the protective grille plates are fixedly connected to the U-shaped frame.

[0013] Furthermore, a photoelectric sensor is provided on the rear end face of the workbench.

[0014] Advantages of the present utility model compared with the prior art:

[0015] 1. In this solution, a scale adjustment mechanism is provided at the rear of the workbench. A multi-indentation combined limit adjustment block is provided above the scale adjustment mechanism. The multi-indentation combined limit adjustment block is fixedly mounted on the scale adjustment mechanism in an adjustable manner. The front surface of the multi-indentation combined limit adjustment block facing the indentation mechanism is a stepped limit structure for realizing the limit of multiple indentations at one time. For the processing of several creases on a cardboard that are relatively close to each other at one place, the stepped limit structure performs the limit step by step, realizing continuous, rapid, and precise creasing of several adjacent indentations on the cardboard, improving production efficiency and product quality.

[0016] 2. In this solution, an indentation knife is provided at the lower edge of the indentation plate. The indentation knife can be made into different shapes of creases according to needs, and is suitable for different types of cardboard and products.

[0017] 3. In this solution, the speed of the indentation mechanism can be precisely controlled by the indentation drive mechanism to adapt to the indentation processing of cardboard with different thicknesses and materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic three-dimensional structure diagram of an adjustable cardboard creasing device provided by the present utility model Figure 1 ;

[0019] Figure 2 is a schematic three-dimensional structure diagram of an adjustable cardboard creasing device provided by the present utility model Figure 2 ;

[0020] Figure 3 is a schematic three-dimensional structure diagram of an adjustable cardboard creasing device provided by the present utility model Figure 3 ;

[0021] Figure 4 is a schematic side view of the structure of an adjustable cardboard creasing device provided by the present utility model;

[0022] Figure 5 is a schematic bottom structure diagram of an adjustable cardboard creasing device provided by the present utility model;

[0023] Figure 6 is a schematic structure diagram of the scale adjustment mechanism and the multi-indentation combined limit adjustment block in the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] It should be noted that in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0026] Please refer to Figures 1-6 , and details of the embodiments of the present utility model will be described in detail.

[0027] Embodiment: An adjustable cardboard creasing device. Refer to Figures 1-3 As shown in the figure, it includes a U-shaped frame 1. A workbench 3 is provided in the middle of the U-shaped frame 1 for conveying cardboard. A creasing mechanism 4 is provided between the U-shaped frames 1. The creasing mechanism 4 is located above the workbench 3. A creasing driving mechanism 7 is provided below the workbench 3. The creasing driving mechanism 7 is connected to one end of the creasing mechanism 4 to drive the creasing mechanism 4 to move up and down. A scale adjusting mechanism 13 is provided at the rear of the workbench 3. A multi-crease combination limit adjusting block 15 is provided above the scale adjusting mechanism 13. The multi-crease combination limit adjusting block 15 is adjustably fixed on the scale adjusting mechanism 13. The front surface of the multi-crease combination limit adjusting block 15 facing the creasing mechanism 4 is a step limit structure for realizing the limit of multiple creases at one time.

[0028] In this embodiment, for the processing of several creases on a cardboard that are close to each other at one place, the step limit structure limits the end of the cardboard step by step, realizing continuous, fast and accurate creasing of several adjacent creases on the cardboard, improving production efficiency and product quality.

[0029] In a specific embodiment: Refer to Figure 6 As shown in the figure, the multi-crease combination limit adjusting block 15 includes a plurality of limit blocks 16. The plurality of limit blocks 16 are stacked together and fixedly connected by fixing bolts 18. The models of the plurality of limit blocks 16 decrease successively from bottom to top, and the surface facing the creasing mechanism 4 forms a step limit structure.

[0030] Through the above structure, simple processing and manufacturing of the step limit structure are realized.

[0031] In a specific embodiment: A vertical baffle is integrally formed at the rear of the lowermost limit block 16 in the multi-crease combination limit adjusting block 15 to form an L-shaped limit block 17. The vertical baffle at the rear of the L-shaped limit block 17 is used for installing and limiting the rear parts of other limit blocks 16.

[0032] With the above structure, it is possible to achieve the rapid combined installation of the limiting blocks of different models in the multi-indentation combined limiting adjustment block, reducing the installation difficulty.

[0033] In a specific embodiment: the scale adjustment mechanism 13 is a scale plate 14, the front end of the scale plate 14 is fixedly connected to the workbench 3, and the upper part of the scale plate 14 is provided with scale values; an upper long slot 19 is provided on the scale plate 14, a side long slot 20 is provided on one side of the scale plate 14, the length positions of the side long slot 20 and the upper long slot 19 correspond, the side long slot 20 communicates with the upper long slot 19, a slider is provided at the lower part of the L-shaped limiting block 17 and the slider is slidably fitted in the upper long slot 19, and a moving adjustment block 21 is provided on one side of the slider, and the moving adjustment block 21 is fitted in the side long slot 20.

[0034] With the above structure, according to the specific technical requirements of the cardboard indentation, the position of the multi-indentation combined limiting adjustment block and the limiting adjustment of the distance between the creases can be carried out. Manually operate the moving adjustment block 21 to move it along the side long slot 20, so as to drive the entire multi-indentation combined limiting adjustment block to move for position adjustment. After adjustment, fix each limiting block in the multi-indentation combined limiting adjustment block to the scale plate through the fixing bolt 18.

[0035] In a specific embodiment: a platform bracket 2 is fixedly provided in front of the U-shaped frame 1, and the workbench 3 is fixedly supported through the platform bracket 2.

[0036] In a specific embodiment: Refer to Figure 4 and 5 As shown, the indentation driving mechanism 7 includes a driving motor 8 and two sets of crank-slider mechanisms 9, two eccentric driving gears 22, two transmission gears 23 and a transmission shaft 24. The two eccentric driving gears 22 are respectively rotatably supported on both sides of the U-shaped frame 1. The two eccentric driving gears 22 are respectively fixedly connected to both ends of the indentation mechanism 4 through two sets of crank-slider mechanisms 9. Among them, the lower end of the crank in the crank-slider mechanism 9 is eccentrically connected to the eccentric driving gear 22, the slider in the crank-slider mechanism 9 is fixedly connected to the indentation mechanism 4, the driving motor 8 is fixed under the workbench 3, the output shaft of the driving motor 8 is fixedly connected to an eccentric driving gear 22, the transmission shaft 24 is rotatably supported on the U-shaped frame 1, and transmission gears 23 are fixed at both ends of the transmission shaft 24. The two transmission gears 23 are respectively meshed with the two eccentric driving gears 22; guide plates 10 are provided on both sides of each end of the indentation mechanism 4, the guide plates 10 are fixedly connected to the workbench 3, and rollers are provided on the contact surfaces of the guide plates 10 and the indentation mechanism 4.

[0037] With the above structure, the driving motor drives an eccentric driving gear to rotate. The eccentric driving gear drives another eccentric driving gear to rotate through a transmission shaft and a transmission gear. The rotation of the two eccentric driving gears drives the crank-slider to generate eccentric rotation. The crank-slider drives the indentation mechanism to move linearly up and down under the limiting and guiding action of the guide plate, realizing the up and down movement of the indentation mechanism. Through this structure, the clearance between the indentation knife and the cardboard on the workbench surface can be adjusted, and the speed of the indentation mechanism can be precisely controlled through the indentation driving structure to adapt to cardboard of different thicknesses and materials.

[0038] In a specific embodiment: The indentation mechanism 4 includes an indentation plate 5. One end of the indentation plate 5 is connected to the indentation driving mechanism 7. A indentation knife 6 is provided below the indentation plate 5. The indentation knife 6 is made into various structures according to different crease shapes.

[0039] Through the above structure, the indentation knife can make creases of different shapes according to needs, which is suitable for processing different types of cardboard and products.

[0040] In a specific embodiment: Protective grille plates 11 are provided at the front and rear of the indentation mechanism 4. Both ends of the protective grille plates 11 are fixedly connected to the U-shaped frame 1. A photoelectric sensor 12 is provided on the rear end surface of the workbench 3.

[0041] Through the above structure, the photoelectric sensor is located below the protective grille plate. When the cardboard is detected, the indentation plate works. The photoelectric sensor and the protective grille plate play a protective role together.

[0042] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0043] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable paperboard folding device comprises a U-shaped frame (1), a workbench (3) is provided in the middle of the U-shaped frame (1), a creasing mechanism (4) is provided between the U-shaped frames (1), the creasing mechanism (4) is located on the upper part of the workbench (3), a creasing driving mechanism (7) is provided on the lower part of the workbench (3), the creasing driving mechanism (7) is connected to one end of the creasing mechanism (4) to drive the creasing mechanism (4) to move up and down, and is characterized in that: The workbench (3) is provided with a scale adjustment mechanism (13) at the rear, and a multi-indentation combination limit adjustment block (15) is provided on the top of the scale adjustment mechanism (13). The multi-indentation combination limit adjustment block (15) is fixed on the scale adjustment mechanism (13) in an adjustable manner, and the front of the multi-indentation combination limit adjustment block (15) facing the indentation mechanism (4) is a step limit structure for realizing the limit of multiple indentations at one time.

2. The adjustable paperboard crease device according to claim 1, characterized in that: The multi-indentation combined limit adjustment block (15) comprises a plurality of limit blocks (16), the plurality of limit blocks (16) are stacked together and fixedly connected by fixing bolts (18), the size of the plurality of limit blocks (16) decreases from bottom to top and the surface facing the indentation mechanism (4) forms a step limit structure.

3. The adjustable paperboard crease device according to claim 2, characterized in that: The rear portion of the lowest limit block (16) in the multi-indentation combined limit adjustment block (15) is integrally formed with a vertical baffle to form an L-shaped limit block (17); the vertical baffle at the rear portion of the L-shaped limit block (17) is used to install and limit the rear portions of other limit blocks (16).

4. The adjustable paperboard folding device according to claim 3 is characterized in that: The scale adjustment mechanism (13) is a scale plate (14), the front end of which is fixedly connected to the workbench (3), and the upper part of the scale plate (14) is provided with scale values; the scale plate (14) is provided with an upper long groove (19), and one side of the scale plate (14) is provided with a side long groove (20), the length position of the side long groove (20) corresponds to that of the upper long groove (19), and the side long groove (20) is connected to the upper long groove (19); a slider is provided at the lower part of the L-shaped limit block (17), and the slider is slidably fitted in the upper long groove (19); a movable adjustment block (21) is provided on one side of the slider, and the movable adjustment block (21) is fitted in the side long groove (20).

5. The adjustable paperboard folding device according to claim 1, characterized in that: A platform bracket (2) is fixedly provided in front of the U-shaped frame (1), and the workbench (3) is fixedly supported by the platform bracket (2).

6. The adjustable paperboard folding device according to claim 1, characterized in that: The indentation drive mechanism (7) comprises a drive motor (8) and two sets of crank sliders (9), two eccentric drive gears (22), two transmission gears (23) and a transmission shaft (24), wherein the two eccentric drive gears (22) are rotatably supported on two sides of the U-shaped frame (1), and the two eccentric drive gears (22) are fixedly connected to two ends of the indentation mechanism (4) through two sets of crank sliders (9), wherein the lower end of the crank in the crank slider (9) is eccentrically connected to the eccentric drive gear (22), and the slider in the crank slider (9) is fixedly connected to the indentation mechanism (4). The drive motor (8) is fixed at the bottom of the workbench (3); the output shaft of the drive motor (8) is fixedly connected to an eccentric drive gear (22); the transmission shaft (24) is rotatably supported on the U-shaped frame (1); transmission gears (23) are fixed at both ends of the transmission shaft (24); the two transmission gears (23) are respectively meshed with two eccentric drive gears (22); guide plates (10) are provided on both sides of each end of the indentation mechanism (4); the guide plates (10) are fixedly connected to the workbench (3); and rollers are provided on the contact surfaces between the guide plates (10) and the indentation mechanism (4).

7. The adjustable paperboard folding device according to claim 1, characterized in that: The indentation mechanism (4) comprises an indentation plate (5), one end of which is connected to an indentation driving mechanism (7), and an indentation knife (6) is provided below the indentation plate (5). The indentation knife (6) is made into a variety of structures according to different fold shapes.

8. The adjustable paperboard folding device according to claim 1, characterized in that: The indentation mechanism (4) is provided with protective grid plates (11) at the front and rear, and both ends of the protective grid plates (11) are fixedly connected to the U-shaped frame (1).

9. The adjustable paperboard folding device according to claim 1, characterized in that: A photoelectric sensor (12) is provided on the rear end surface of the workbench (3).

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