Kraft linerboard uniformity measuring device

Abstract

The utility model discloses a kraft linerboard uniformity measuring device, which relates to the technical field of kraft linerboard equipment and comprises a frame body, supporting legs are fixedly connected to four corners of the bottom of the frame body, a first fixing block is arranged in the frame body, and a lifting structure is arranged at the top of the first fixing block. The bottom of the first fixed block is connected with a first movable block through a first spring, and sliding grooves are formed in the two sides of the first movable block. The roll shaft is arranged on the outer surface of the sliding rod, the outer surface of the roll shaft can move on the outer surface of kraft linerboard through the lifting structure and the driving structure, and therefore when the thickness of the kraft linerboard is not uniform, the height of the roll shaft can be changed, and the kraft linerboard can be fixed. The pen point at one end of the sliding rod can draw lines on the surface of the liquid crystal handwriting board body along with the change of the sliding rod, so that the overall thickness of kraft linerboard can be reflected through the lines, the accuracy of detection data can be conveniently improved, and the uniformity of the kraft linerboard can be better evaluated.

Description

Technical Field

[0001] The utility model relates to the technical field of kraft paper equipment, in particular to a kraft paper uniformity measuring device. Background Art

[0002] Kraft paper is one of the main types of paper for cartons. It is usually used to make various packaging cartons, especially foreign trade packaging cartons and domestic high-end commodity packaging cartons. It has many unique properties: tough texture, high burst resistance, ring crush strength and tear resistance, as well as good water resistance. In addition to being used for packaging cartons, kraft paper is also widely used in clothing plate making, design and drawing and other fields. Therefore, kraft paper is a type of paper widely used in the packaging industry. Its unique properties and diverse uses make it the preferred material for many industries.

[0003] After the production of kraft paper is completed, it is usually necessary to test its uniformity. The uniformity of kraft paper refers to the uniformity of the fiber structure in the paper, which directly affects the quality and appearance of the paper. Kraft paper with good uniformity has uniform fiber distribution, smooth paper surface, high strength and burst resistance, as well as better printing effect and processing performance. When measuring the uniformity of kraft paper, the thickness of the kraft paper is usually tested first, so as to indirectly evaluate the uniformity of the kraft paper through the uniformity of its thickness.

[0004] At present, when measuring the thickness of kraft paper, a measuring instrument is usually used to perform fixed-point measurement on the outer surface of the kraft paper, so that by comparing multiple sets of measured data, it can be reflected whether the thickness of the kraft paper is uniform.

[0005] However, when a measuring instrument is used to perform fixed-point measurement on kraft paper, the measurement result can only reflect the thickness at the measurement position, which results in inaccuracy in the analysis of the measurement structure, thereby affecting the evaluation of the uniformity of the kraft paper. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a kraft cardboard uniformity measuring device to solve the technical problem that when using a measuring instrument to perform fixed-point measurement on kraft cardboard, the measurement result can only reflect the thickness at the measurement position, which leads to inaccurate results when analyzing the measurement structure, thus affecting the evaluation of the uniformity of kraft cardboard.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kraft cardboard uniformity measuring device, comprising a frame, the four corners of the bottom of the frame are fixedly connected with legs, a first fixed block is arranged in the frame, and a lifting structure is arranged on the top of the first fixed block, the bottom of the first fixed block is connected with a first movable block through a first spring, slide grooves are arranged on both sides of the first movable block, and a slide rod matching the slide groove is slidably connected in the slide groove, a driving structure is arranged at one end of the slide rod, and a pen tip is fixedly connected to the other end of the slide rod, a liquid crystal handwriting board body is movably connected to the bottom of the frame, and the pen tip is in contact with the liquid crystal handwriting board body, and a roller is rotatably connected to the outer surface of the slide rod.

[0008] By adopting the above technical solution, when detecting the uniformity of kraft paper, the outer surface of the roller can be brought into contact with the kraft paper through the lifting structure, and then the slide rod can be driven to move in the slide groove through the driving structure, so that the roller moves on the outer surface of the kraft paper. Therefore, when the thickness of the kraft paper is uneven, the height of the roller will change, thereby stretching or squeezing the first spring through the first movable block. At this time, the pen tip at one end of the slide rod will draw lines on the surface of the liquid crystal handwriting board body following its changes, so that the overall thickness of the kraft paper can be reflected through the lines, which is convenient for increasing the accuracy of the thickness detection data. After the kraft paper is detected, the thickness is judged to be uniform through the horizontality of the lines on the surface of the liquid crystal handwriting board body, so that the uniformity of the kraft paper can be evaluated.

[0009] The utility model is further configured as follows: the lifting structure includes a connecting piece fixedly connected to the top of the frame, slots are provided on both sides of the connecting piece, and a card block is slidably connected in the slot, the bottom of the card block movably passes through the top of the frame and extends to the inside to be connected to a first fixed block, a hydraulic cylinder is provided on the top of the frame, and the bottom of the hydraulic cylinder is connected to the top of the card block.

[0010] By adopting the above technical solution, when inspecting kraft cardboard, the hydraulic cylinder can drive the card block, the first fixed block and the first movable block to move downward, so that the roller in the first movable block can move synchronously until the roller contacts the top of the kraft cardboard, and after the inspection of the kraft cardboard is completed, it can be driven by the hydraulic cylinder to move upward, so that the kraft cardboard in the frame can be replaced.

[0011] The utility model is further configured as follows: the driving structure includes a second fixed block fixedly connected to one side of the clamping block, and the bottom of the second fixed block is connected to a second movable block through a second spring, a screw rod is rotatably connected inside the second movable block, and the screw rod movably penetrates the outer surface of the sliding rod, one end of the screw rod movably penetrates one end of the second movable block and extends to the outside to be connected to the output of the motor, the motor is placed on the top of the support plate, and the support plate is fixedly connected to one end of the second movable block.

[0012] By adopting the above technical solution, the motor drives the lead screw to rotate forward and backward, thereby driving the slide rod to move in the slide groove, making it easier for the roller to move at the top of the kraft paper. At the same time, a second movable block is connected to the bottom of the second fixed block through a second spring, so that the lead screw can move with the movement height of the roller, which is easier to detect the uniformity of the kraft paper and avoid affecting the use of the kraft paper.

[0013] The utility model is further configured that the bottom and the bottom of the slide groove are both provided with limit grooves, and a limit block matching the limit groove is slidably connected in the limit groove, and the limit block is fixedly connected to the outer surface of the slide rod.

[0014] By adopting the above technical solution, the movement range and direction of the sliding rod in the sliding groove can be limited, which prevents the sliding rod from deviating and shaking, and increases the sliding stability of the sliding rod. At the same time, the limiting groove can play a precise guiding role for the limiting block, thereby improving the movement accuracy of the sliding rod.

[0015] The utility model is further configured that a groove is provided at the bottom of the frame body, and a liquid crystal handwriting board body is movably connected in the groove.

[0016] By adopting the above technical solution, the position of the LCD handwriting board body can be fixed by the groove. When the pen tip draws a line on the surface of the LCD handwriting board body, the horizontality of the line can be observed, so that the uniformity of the kraft paper can be obtained through the horizontality of the line.

[0017] The utility model is further configured such that the first movable block and the second movable block are both configured as a "T"-shaped structure.

[0018] By adopting the above technical solution, the stability of the first movable block on the first fixed block and the stability of the second movable block sliding in the second fixed block can be increased, which facilitates better use of the device.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] The utility model provides a roller on the outer surface of the slide rod. When the outer surface of the roller contacts the kraft paper through the lifting structure, the slide rod is driven to move in the slide groove through the driving structure, so that the roller moves on the outer surface of the kraft paper. Therefore, when the thickness of the kraft paper is uneven, the height of the roller will change, and the pen tip at one end of the slide rod will draw lines on the surface of the liquid crystal handwriting board body following the change, so that the overall thickness of the kraft paper can be reflected through the lines, which is convenient for increasing the accuracy of the detection data. After the kraft paper is detected, the uniformity of the thickness can be judged by the horizontality of the lines on the surface of the liquid crystal handwriting board body, so that the uniformity of the kraft paper can be evaluated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a three-dimensional structural cross-sectional view of the utility model;

[0023] Figure 3 It is a detailed diagram of the internal structure of the utility model;

[0024] Figure 4 For this utility model Figure 3 A magnified view of the structure at center;

[0025] Figure 5 For this utility model Figure 4 Enlarged view of the structure at point B in the middle.

[0026] In the figure: 1. frame; 2. support leg; 3. connecting piece; 4. slot; 5. block; 6. hydraulic cylinder; 7. first fixed block; 8. first spring; 9. first movable block; 10. slide bar; 11. roller; 12. screw rod; 13. motor; 14. support plate; 15. second movable block; 16. second fixed block; 17. second spring; 18. slide slot; 19. pen tip; 20. LCD handwriting board body; 21. groove; 22. limit slot; 23. limit block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] The following describes an embodiment of the utility model based on its overall structure.

[0029] A kraft paper uniformity measuring device, such as Figure 1-5As shown, it includes a frame 1, and legs 2 are fixedly connected at the four corners of the bottom of the frame 1, so that the frame 1 can be supported by the legs 2. At the same time, a groove 21 is provided at the bottom of the frame 1, and a liquid crystal handwriting board body 20 is movably connected in the groove 21, so that the position of the liquid crystal handwriting board body 20 can be fixed by the groove 21.

[0030] Then, a first fixed block 7 is arranged in the frame 1, and a lifting structure is arranged on the top of the first fixed block 7, and the lifting structure can be used to drive the first fixed block 7 to move downward, so that its height can better measure the thickness of the kraft paper. A first movable block 9 is connected to the bottom of the first fixed block 7 through a first spring 8, and a slide groove 18 is arranged on both sides of the first movable block 9, and a slide rod 10 matching the slide groove 18 is slidably connected in the slide groove 18, and a driving structure is arranged at one end of the slide rod 10, and a pen tip 19 is fixedly connected to the other end of the slide rod 10, and the slide rod 10 can be driven to slide in the slide groove 18 by the driving structure, thereby synchronously driving the pen tip 19. The pen tip 19 moves, and the pen tip 19 contacts with the liquid crystal handwriting board body 20. A roller 11 is rotatably connected to the outer surface of the slide bar 10. When the roller 11 rolls on the surface of the kraft card through the movement of the slide bar 10, the first movable block 9 can be driven to squeeze or stretch the first spring 8 through the change in its rolling height, so as to avoid affecting the measurement of the thickness of the kraft card, so that the pen tip 19 can follow the height of the roller 11 moving on the kraft card to draw a line on the liquid crystal handwriting board body 20, so that the thickness of the kraft card can be accurately reflected through the line. At the same time, the first movable block 9 is set to a "T"-shaped structure, which can increase the stability of the movement of the first movable block 9.

[0031] The lifting structure includes a connecting member 3 fixedly connected to the top of the frame 1, and slots 4 are provided on both sides of the connecting member 3. A block 5 is slidably connected in the slot 4. The bottom of the block 5 moves through the top of the frame 1 and extends to the inside to be connected to a first fixed block 7. A hydraulic cylinder 6 is provided on the top of the frame 1, and the bottom of the hydraulic cylinder 6 is connected to the top of the block 5. The block 5 can be driven by the hydraulic cylinder 6 to move in the slot 4, so that the height of the roller 11 can be adjusted to fit the outer surface of the kraft cardboard, so that the roller 11 can fit the surface of the kraft cardboard and move.

[0032] The driving structure includes a second fixed block 16 fixedly connected to one side of the card block 5, and the bottom of the second fixed block 16 is connected to the second movable block 15 through a second spring 17, the second movable block 15 is rotatably connected with a screw rod 12, and the screw rod 12 movably penetrates the outer surface of the slide rod 10, one end of the screw rod 12 movably penetrates one end of the second movable block 15 and extends to the outside to be connected to the output of the motor 13, so when the motor 13 drives the screw rod 12 to rotate, the slide rod 10 can move on the outer surface of the screw rod 12, thereby synchronously driving the roller shaft 11 to move, so that the roller shaft 11 can roll on the outer surface of the kraft cardboard, and the high The thickness of the kraft paper can be accurately reflected by the degree, so that the data obtained can accurately reflect the thickness of the kraft paper. At the same time, when the roller 11 encounters the unevenness of the kraft paper, it will move up and down, so that the second spring 17 can be stretched or squeezed by the second movable block 15 to change the position of the second movable block 15, so as to avoid affecting the change of the height of the roller 11. Therefore, the motor 13 is placed on the top of the support plate 14, and the support plate 14 is fixedly connected to one end of the second movable block 15. The position of the motor 13 is fixed by the support plate 14, and the second movable block 15 is set to a "T" shape structure, which can increase the stability of the movement of the second movable block 15.

[0033] Therefore, when in use, a roller 11 is provided on the outer surface of the slide rod 10, and the outer surface of the roller 11 is contacted with the kraft cardboard through the lifting structure, and then the slide rod 10 is driven by the driving structure to move in the slide groove 18, so that the roller 11 moves on the outer surface of the kraft cardboard. Therefore, when the thickness of the kraft cardboard is uneven, the height of the roller 11 will change, thereby stretching or squeezing the first spring 8 through the first movable block 9. At this time, the pen tip 19 at one end of the slide rod 10 will follow its changes and draw lines on the surface of the liquid crystal handwriting board body 20, so that the overall thickness of the kraft cardboard can be reflected through the lines, which is convenient for increasing the accuracy of the detection data. After the thickness detection of the kraft cardboard is completed, the horizontality of the lines on the surface of the liquid crystal handwriting board body 20 is used to judge whether its thickness is uniform, and the thickness value of the entire kraft cardboard can be obtained, thereby better evaluating the uniformity of the kraft cardboard.

[0034] Furthermore, limiting grooves 22 are provided at the bottom and inside of the slide groove 18, and a limiting block 23 matching the limiting groove 22 is slidably connected in the limiting groove 22, and the limiting block 23 is fixedly connected to the outer surface of the slide rod 10. The movement of the slide rod 10 can be limited by the limiting groove 22 and the limiting block 23 to prevent the slide rod 10 from deflecting and shaking, thereby increasing the sliding stability of the slide rod 10. At the same time, the limiting groove 22 can accurately guide the limiting block 23, thereby improving the movement accuracy of the slide rod 10.

[0035] In this embodiment, when detecting the thickness of the kraft paper, since the thickness of the kraft paper is 0.12mm-0.18mm, it is impossible to accurately detect whether the thickness of the kraft paper is uniform. In this case, multiple layers of kraft paper from the same batch can be stacked for detection. When stacking the kraft paper, it is possible to avoid gaps between adjacent kraft paper to affect the detection structure. Therefore, it is possible to better detect whether the thickness of the kraft paper is uniform, thereby evaluating the uniformity of the kraft paper. At the same time, the working principle of the liquid crystal handwriting board body 20 proposed in this application is: based on the characteristics of the bistable liquid crystal and the pressure sensing technology, by applying different pressures to it by a pen, the state change of the liquid crystal molecules can be controlled, thereby realizing the display and disappearance of the handwritten content. The liquid crystal handwriting board body 20 is an existing structure, which is a structure that is easily known to technicians in this field.

[0036] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A kraft paper uniformity measuring device, comprising a frame (1), wherein four corners of the bottom of the frame (1) are fixedly connected to legs (2), characterized in that: The frame (1) is provided with a first fixed block (7), and a lifting structure is provided on the top of the first fixed block (7); the bottom of the first fixed block (7) is connected to a first movable block (9) via a first spring (8); both sides of the first movable block (9) are provided with sliding grooves (18), and a sliding rod (10) which fits with the sliding groove (18) is slidably connected in the sliding groove (18); a driving structure is provided at one end of the sliding rod (10), and a pen tip (19) is fixedly connected to the other end of the sliding rod (10); a liquid crystal handwriting board body (20) is movably connected to the bottom of the frame (1), and the pen tip (19) is in contact with the liquid crystal handwriting board body (20); and a roller (11) is rotatably connected to the outer surface of the sliding rod (10).

2. The kraft paper uniformity measuring device according to claim 1, characterized in that: The lifting structure comprises a connecting member (3) fixedly connected to the top of a frame (1), a clamping groove (4) being provided on both sides of the connecting member (3), a clamping block (5) being slidably connected in the clamping groove (4), the bottom of the clamping block (5) movably passing through the top of the frame (1) and extending to the inside to be connected to a first fixed block (7), a hydraulic cylinder (6) being provided at the top of the frame (1), and the bottom of the hydraulic cylinder (6) being connected to the top of the clamping block (5).

3. The kraft paper uniformity measuring device according to claim 2, characterized in that: The driving structure comprises a second fixed block (16) fixedly connected to one side of the clamping block (5), and the bottom of the second fixed block (16) is connected to a second movable block (15) via a second spring (17); a screw rod (12) is rotatably connected inside the second movable block (15), and the screw rod (12) movably penetrates the outer surface of the sliding rod (10); one end of the screw rod (12) movably penetrates one end of the second movable block (15) and extends to the outside to be connected to the output of the motor (13); the motor (13) is placed on the top of the support plate (14), and the support plate (14) is fixedly connected to one end of the second movable block (15).

4. The kraft paper uniformity measuring device according to claim 1, characterized in that: The bottom and inner part of the slide groove (18) are both provided with a limiting groove (22), and a limiting block (23) matching with the limiting groove (22) is slidably connected in the limiting groove (22), and the limiting block (23) is fixedly connected to the outer surface of the slide rod (10).

5. The kraft paper uniformity measuring device according to claim 1, characterized in that: The bottom of the frame (1) is provided with a groove (21), and a liquid crystal handwriting board body (20) is movably connected in the groove (21).

6. The kraft paper uniformity measuring device according to claim 1, characterized in that: The first movable block (9) and the second movable block (15) are both arranged in a "T"-shaped structure.

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