A special paper detection device

Abstract

The utility model relates to the technical fields of special paper detection, especially to a special paper detection device, which is provided with a roller pressing restraint mechanism with damping rotation arranged outside, can keep the paper tension in the detection box and improve the reliability, comprising a paper detection box, further comprising a connecting frame, a rotary damper, a lower pressing roller, a guide sleeve, a sliding rod, a pull tab, a connecting spring, a top frame and an upper pressing roller, the input side of the paper detection box is connected with the outside of the front side of the connecting frame, the middle inner side of the top of the connecting frame is connected with the outside of the guide sleeve, the inner wall of the guide sleeve is vertically slidingly connected with the outer wall of the sliding rod, the top end of the sliding rod is connected with the middle part of the bottom side of the pull tab, the connecting spring is connected between the outside of the bottom of the pull tab and the outside of the guide sleeve on the top end of the connecting frame, the bottom side of the sliding rod is connected with the middle part of the top side of the top frame, the upper pressing roller is rotatably arranged in the top frame, the lower pressing roller is rotatably arranged in the connecting frame through the rotary damper, the upper pressing roller corresponds to the lower pressing roller horizontally, and the front side of the paper detection box is provided with a winding mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of special paper detection, specifically a special paper detection device. Background Technology

[0002] Specialty paper generally refers to paper with specific properties and uses, and higher added value. Specialty paper can be broadly divided into traditional specialty paper and specialized specialty paper. Traditional specialty paper can be used for special packaging, labeling, decoration, and other printing applications; specialized specialty paper requires unique processing methods and specialized technologies to manufacture, resulting in products with unique properties and typically a smaller market size. Compared to ordinary paper, specialty paper is characterized by high performance, high added value, high technology content, and a shorter lifespan.

[0003] During its production process, corresponding tests are required. An existing special paper testing device, such as one with patent publication number CN206832695U, involves the special paper passing through the bottom of a roller and the top of a tensioning shaft. A drive device rotates the roller, causing the special paper to roll up. The paper then passes through a testing chamber, where a water mist generator humidifies the paper, improving its toughness. An infrared detector checks for breaks in the paper, and a light-collecting plate concentrates the light from a searchlight onto the paper for testing. If the infrared detector and the searchlight detect any defects in the paper's production, an alarm sounds and the power to the drive device is disconnected, facilitating the location of the defects. This special paper testing device is simple in structure, easy to operate, highly efficient, and accurate.

[0004] However, the device lacks constraints on the paper input side, which can easily lead to insufficient tension during the detection process, resulting in poor reliability. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a special paper detection device with an externally mounted roller pressure constraint mechanism that dampens rotation, which can maintain the tension of the paper in the detection box and improve reliability.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a special paper detection device, including a paper detection box, a connecting frame, a rotary damper, a lower pressure roller, a guide sleeve, a slide rod, a pull tab, a connecting spring, a top frame, and an upper pressure roller. The input side of the paper detection box is connected to the outer front side of the connecting frame, the inner side of the top of the connecting frame is connected to the outer side of the guide sleeve, the inner wall of the guide sleeve is vertically slidably connected to the outer wall of the slide rod, the top of the slide rod is connected to the middle of the bottom side of the pull tab, the outer side of the bottom of the pull tab is connected to the outer side of the guide sleeve at the top of the connecting frame by a connecting spring, the bottom side of the slide rod is connected to the middle of the top side of the top frame, an upper pressure roller is rotatably arranged inside the top frame, a lower pressure roller is rotatably arranged inside the lower side of the connecting frame via a rotary damper, the upper pressure roller and the lower pressure roller are laterally corresponding, and a winding mechanism is provided on the front side of the paper detection box.

[0009] Preferably, it also includes a shaft frame, a connecting shaft, a movable sleeve, and a top rod. The top rear side of the paper detection box is connected to the bottom end of the shaft frame, the inner side of the shaft frame is connected to the left and right sides of the connecting shaft, the outer side of the connecting shaft is movably sleeved with the inner side of the movable sleeve, and the middle part of the top side of the movable sleeve is connected to the bottom side of the top rod.

[0010] Preferably, the winding mechanism includes a connecting plate, a winding motor, a rotating shaft, a threaded head, a limiting plate, and a fixing nut. The lower right side of the front end of the paper detection box is connected to the rear side of the connecting plate, the outer side of the connecting plate is connected to the inner side of the winding motor, the output end of the winding motor is connected to the right side of the rotating shaft, a threaded head is connected to the left side of the rotating shaft, the outer side of the threaded head is detachably screwed to the inner side of the fixing nut, and a limiting plate is connected to the outer right side of the rotating shaft.

[0011] Preferably, it also includes a handle, and the right side of the rotating shaft is connected to the inner side of the handle.

[0012] Preferably, it also includes an observation window, with the upper right side of the paper detection box connected to the inner side of the observation window.

[0013] Preferably, the paper detection box also includes a support and a base, with the bottom left and right sides of the paper detection box respectively connected to the top of a set of supports, and the bottom of each set of supports respectively connected to the middle of the top side of a set of bases.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a special paper detection device, which has the following beneficial effects:

[0016] Before testing, the pull tab is held to overcome the elastic force of the connecting spring, causing the slide bar to slide upward within the guide sleeve. This moves the top frame upward, separating the upper and lower pressure rollers. The paper passes through the interior of the lower and upper pressure rollers, extending forward within the paper detection box and being fixed to the winding mechanism. Then, the pull tab is released, and under the elastic contraction of the connecting spring, the upper and lower pressure rollers press against the paper at that position. The winding mechanism then winds the paper, and within the connecting frame, the lower pressure roller is damped by a rotation damper. This, combined with the upper pressure roller's compression and rotation constraint within the top frame, allows the paper to move, thus enabling testing within the paper detection box while maintaining paper tension. An externally located roller pressure constraint mechanism with damped rotation is provided to maintain paper tension within the detection box, improving reliability. Attached Figure Description

[0017] Figure 1 This is an axial view of the structural schematic diagram of this utility model;

[0018] Figure 2 This utility model Figure 1 The right view;

[0019] Figure 3 This utility model Figure 1 Rear view;

[0020] Figure 4 This utility model Figure 1 The top view.

[0021] The following are labels in the attached diagram: 1. Paper detection box; 2. Connecting frame; 3. Rotation damper; 4. Lower pressure roller; 5. Guide sleeve; 6. Slide rod; 7. Pull tab; 8. Connecting spring; 9. Top frame; 10. Upper pressure roller; 11. Shaft bracket; 12. Connecting shaft; 13. Movable sleeve; 14. Top rod; 15. Connecting plate; 16. Rewinding motor; 17. Rotating shaft; 18. Threaded head; 19. Limiting piece; 20. Fixing nut; 21. Handle piece; 22. Observation window; 23. Bracket; 24. Base. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figure 1-4A special paper detection device includes a paper detection box 1, a connecting frame 2, a rotation damper 3, a lower pressure roller 4, a guide sleeve 5, a slide rod 6, a pull tab 7, a connecting spring 8, a top frame 9, and an upper pressure roller 10. The input side of the paper detection box 1 is connected to the front exterior of the connecting frame 2. The inner side of the top of the connecting frame 2 is connected to the outer side of the guide sleeve 5. The inner wall of the guide sleeve 5 is vertically slidably connected to the outer wall of the slide rod 6. The top of the slide rod 6 is connected to the middle of the bottom side of the pull tab 7. The outer side of the bottom of the pull tab 7 is connected to the outer side of the guide sleeve 5 at the top of the connecting frame 2 by a connecting spring 8. The bottom side of the slide rod 6 is connected to the middle of the top side of the top frame 9. The upper pressure roller 10 is rotatably arranged inside the top frame 9. The lower pressure roller 4 is rotatably arranged inside the lower side of the connecting frame 2 via the rotation damper 3. The upper pressure roller 10 and the lower pressure roller 4 are laterally corresponding. A winding mechanism is provided on the front side of the paper detection box 1. Before detection, the pull tab 7 is held against the elastic force of the connecting spring 8, and the slide rod 6 is slid up in the guide sleeve 5, which drives the top frame 9 to move up, so that the upper pressure roller 10 is separated from the lower pressure roller 4. The paper passes through the lower pressure roller 4 and the interior of the upper pressure roller 10, extends forward in the paper detection box 1, and is fixed on the winding mechanism. Then the pull tab 7 is released, and under the elastic contraction of the connecting spring 8, the upper pressure roller 10 and the lower pressure roller 4 press against the paper at that position. Then the winding mechanism acts to wind up the paper, and in the connecting frame 2, the rotation damper 3 acts on the lower pressure roller 4 to dampen the rotation. With the upper pressure roller 10 in the top frame 9 pressing and constraining the rotation, the paper moves, thus being detected inside the paper detection box 1, while keeping the paper taut and moving.

[0025] It also includes a shaft frame 11, a connecting shaft 12, a movable sleeve 13, and a top rod 14. The top rear side of the paper detection box 1 is connected to the bottom end of the shaft frame 11. The inner side of the shaft frame 11 is connected to the left and right sides of the connecting shaft 12. The outer side of the connecting shaft 12 is movably sleeved with the inner side of the movable sleeve 13. The middle part of the top side of the movable sleeve 13 is connected to the bottom side of the top rod 14. When the pull tab 7 is raised to the upper position, with the shaft frame 11 fixing the connecting shaft 12, the top rod 14 can be moved and rotated outside the connecting shaft 12 via the movable sleeve 13, so that the top side of the top rod 14 abuts against the bottom end of the pull tab 7, thereby supporting the top frame 9 at a high position.

[0026] The winding mechanism includes a connecting plate 15, a winding motor 16, a rotating shaft 17, a threaded head 18, a limiting piece 19, and a fixing nut 20. The lower right side of the front end of the paper detection box 1 is connected to the rear side of the connecting plate 15. The outer side of the connecting plate 15 is connected to the inner side of the winding motor 16. The output end of the winding motor 16 is connected to the right side of the rotating shaft 17. The threaded head 18 is connected to the left side of the rotating shaft 17. The outer side of the threaded head 18 is detachably screwed to the inner side of the fixing nut 20. The limiting piece 19 is connected to the outer side of the right side of the rotating shaft 17. The paper roll is placed on the outer side of the rotating shaft 17 and limited by the right side of the limiting piece 19. The fixing nut 20 is screwed on the outer side of the threaded head 18 on the left side, which acts to tighten the paper roll on the left side, thereby fixing the paper roll relative to the rotating shaft 17. When the winding motor 16 runs, the paper roll can be rotated by the rotating shaft 17 under the fixation of the connecting plate 15, which facilitates winding.

[0027] It also includes a handle 21, with the right side of the rotating shaft 17 connected to the inner side of the handle 21; by pinching the handle 21, the rotating shaft 17 can be fixed in an auxiliary way, thereby fixing the threaded head 18, which makes it convenient to screw the nut 20 on.

[0028] It also includes an observation window 22, with the upper right side of the paper detection box 1 connected to the inside of the observation window 22; through the observation window 22, one can observe from the outside in, making it easier to judge the internal situation and improving convenience.

[0029] It also includes a bracket 23 and a base 24. The bottom left and right sides of the paper detection box 1 are respectively connected to the top of a set of brackets 23, and the bottom of each set of brackets 23 is respectively connected to the middle of the top side of a set of bases 24. It is fixed to the ground by the base 24 and can be supported by the brackets 23 to improve stability.

[0030] In summary, when using a special paper detection device, the base 24 is fixed to the ground, and the paper detection box 1 is supported by the bracket 23. Before detection, the paper roll is placed on the outside of the rotating shaft 17, limited by the right side of the limiting piece 19, and the rotating shaft 17 is further fixed by the gripping piece 21, thereby fixing the threaded head 18. The fixing nut 20 is screwed on the outside of the threaded head 18 on the left side, acting on the left side of the paper roll to tighten it, thus fixing the paper roll relative to the rotating shaft 17. Overcoming the elasticity of the connecting spring 8, the pull piece 7 is gripped to slide the slide rod 6 upward in the guide sleeve 5, driving the top frame 9 to move upward, separating the upper pressure roller 10 from the lower pressure roller 4. When the pull piece 7 is raised to the upper position, with the shaft frame 11 fixed to the connecting shaft 12, the top rod 14 can be rotated and moved outside the connecting shaft 12 via the movable sleeve 13. The top side of the top rod 14 abuts against the bottom of the pull tab 7, thereby supporting the top frame 9 at a high position. The paper passes through the inside of the lower pressure roller 4 and the upper pressure roller 10, extends forward in the paper detection box 1, and is fixed on the paper roll. Then, the pull tab 7 is released, and under the elastic contraction of the connecting spring 8, the upper pressure roller 10 and the lower pressure roller 4 press against the paper at that position. Then, when the winding motor 16 runs, the paper roll can be driven to rotate via the rotating shaft 17 under the fixation of the connecting plate 15. In the connecting frame 2, the rotation damper 3 acts on the lower pressure roller 4 to dampen the rotation. In conjunction with the upper pressure roller 10 in the top frame 9 to press and constrain the rotation, the paper moves, thereby being detected inside the paper detection box 1 while keeping the paper taut and moving. In addition, it can be observed from the outside to the inside through the observation window 22, which is convenient for judging the internal condition and improving convenience.

[0031] The paper detection box 1 is considered equivalent to the detection box and its auxiliary structure in a special paper detection device of comparative patent CN2 slide bar 6832695U. The rotary damper 3 and the winding motor 16 are commercially available devices known to those skilled in the art. The rotary damper 3 is preferably the ZB-48C limiting piece 19. The paper detection box 1 and the winding motor 16 are equipped with a corresponding control system to fulfill their functions. Here we are only using them without making any structural or functional improvements, so we will not go into detail here.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special paper detection device comprising a paper detection box (1), characterized in that, It also includes a connecting frame (2), a rotation damper (3), a lower pressure roller (4), a guide sleeve (5), a slide rod (6), a pull tab (7), a connecting spring (8), a top frame (9), and an upper pressure roller (10). The input side of the paper detection box (1) is connected to the front exterior of the connecting frame (2), the inner side of the top of the connecting frame (2) is connected to the outer side of the guide sleeve (5), the inner wall of the guide sleeve (5) is vertically slidably connected to the outer wall of the slide rod (6), and the top end of the slide rod (6) is connected to the pull tab (7). The bottom side is connected to the middle part. The bottom outer side of the pull tab (7) is connected to the outer side of the guide sleeve (5) at the top of the connecting frame (2) and the connecting spring (8). The bottom side of the slide rod (6) is connected to the middle part of the top side of the top frame (9). The top frame (9) is rotatably equipped with an upper pressure roller (10). The lower side of the inside of the connecting frame (2) is rotatably equipped with a lower pressure roller (4) via a rotation damper (3). The upper pressure roller (10) and the lower pressure roller (4) are laterally corresponding. The paper detection box (1) is equipped with a winding mechanism on the front side.

2. The special paper detection device according to claim 1, characterized in that: It also includes a shaft frame (11), a connecting shaft (12), a movable sleeve (13), and a top rod (14). The top rear side of the paper detection box (1) is connected to the bottom end of the shaft frame (11), the inner side of the shaft frame (11) is connected to the left and right sides of the connecting shaft (12), the outer side of the connecting shaft (12) is movably sleeved with the inner side of the movable sleeve (13), and the middle part of the top side of the movable sleeve (13) is connected to the bottom side of the top rod (14).

3. The special paper detection device according to claim 1, characterized in that: The winding mechanism includes a connecting plate (15), a winding motor (16), a rotating shaft (17), a threaded head (18), a limiting piece (19), and a fixing nut (20). The lower right side of the front end of the paper detection box (1) is connected to the rear side of the connecting plate (15). The outer side of the connecting plate (15) is connected to the inner side of the winding motor (16). The output end of the winding motor (16) is connected to the right side of the rotating shaft (17). The left side of the rotating shaft (17) is connected to the threaded head (18). The outer side of the threaded head (18) is detachably screwed to the inner side of the fixing nut (20). The outer right side of the rotating shaft (17) is connected to the limiting piece (19).

4. The special paper detection device according to claim 3, characterized in that: It also includes a handle (21), and the right side of the rotating shaft (17) is connected to the inner side of the handle (21).

5. The special paper detection device according to claim 1, characterized in that: It also includes an observation window (22), the upper right side of the paper detection box (1) is connected to the inside of the observation window (22).

6. A special paper detection device according to claim 1, characterized in that: It also includes a bracket (23) and a base (24). The bottom left and right sides of the paper detection box (1) are respectively connected to the top of a set of brackets (23), and the bottom of each set of brackets (23) is respectively connected to the middle of the top side of a set of bases (24).

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