Roller press scraper device based on water-soluble coating material

The scraper device with a hollow rotating shaft and torsion spring structure facilitates the installation and replacement of scraper blades on the roller press, solving the problem of inconvenient installation of existing devices and improving roller pressing efficiency and coating uniformity.

CN224253277UActive Publication Date: 2026-05-19CHANGZHOU NACONOR PRECISION ROLLING EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU NACONOR PRECISION ROLLING EQUIP CO LTD
Filing Date
2025-05-15
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing doctor blade device is inconvenient to install and replace during the roll forming process of water-soluble coating, which affects the roll forming effect.

Method used

It adopts a hollow rotating shaft and torsion spring structure. The scraper blade is pushed close to or away from the outer circumference of the roll by a manual screw. The angle can be easily adjusted by a pointer and a dial. Impurities are collected through the discharge hole and storage box. The overall structure of the device is easy to disassemble.

Benefits of technology

It enables convenient installation and replacement of the scraper blades, improves rolling efficiency, and ensures coating uniformity and roll cleanliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a roller press scraper device based on a water-soluble coating material, which comprises a pair of machine bases arranged at an interval, an adapter plate is fixed on the inner side surface of each machine base, a bearing seat is fixed on the inner side surface of the left end of each adapter plate, a hollow rotating shaft is rotatably arranged between the bearing seats, and the hollow rotating shaft is fixed on the inner side surface of the left end of each adapter plate. A scraper blade is clamped at the edge of the left side of the hollow rotating shaft, and the right side of the bearing seat is connected with a manual screw which pushes the hollow rotating shaft to rotate anticlockwise so as to enable a tool nose at the upper end of the scraper blade to be close to the peripheral surface of the roller; torsional springs for pushing the hollow rotating shaft to rotate clockwise so as to enable the upper-end tool noses of the scraper blades to be far away from the peripheral surface of the roller are respectively arranged at two ends of the hollow rotating shaft. The scraper blade is clamped at the edge of the left side of the hollow rotating shaft, the tool nose at the upper end of the scraper blade is pushed by the manual screw to be close to the peripheral face of the roller so as to scrape off impurities and waste materials attached to the peripheral face of the roller, the scraper blade is driven by the torsion spring to reset, and therefore the scraper blade is easy and convenient to install through the structure.
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Description

Technical Field

[0001] This utility model relates to the field of roller pressing technology, and in particular to a scraper device for a roller press based on a water-soluble coating material. Background Technology

[0002] Coating is a process that uses an adhesive to brush a cementitious material onto the surface of a substrate to improve its properties. To achieve a denser and more uniform coating, the coated substrate is usually rolled.

[0003] During the rolling process, the coating material on the substrate surface is very easy to adhere to the roller surface and affect the rolling effect. The coating material is mainly divided into two types: water-soluble and non-water-soluble. When rolling water-soluble coating layers, the general treatment method is to soften it by spraying water, then use a wiping roller to mix the adhering material on the roller surface with the liquid and dissolve it in the liquid, and finally use a scraper to clean the roller surface.

[0004] In existing scraper device structures, the scraper is fixed to the rotating shaft with bolts, and the working position and non-working position of the scraper are adjusted by the cylinder pushing the rotating shaft. However, this fixed installation method has limited applicability, and the installation and replacement of the scraper is relatively troublesome. Utility Model Content

[0005] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a roller press scraper device based on water-soluble coating material that is simple and convenient to install and replace scrapers.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a scraper device for a roller press based on a water-soluble coating material, including a pair of machine bases arranged at a distance, an adapter plate fixed on the inner side of the machine base, a bearing seat fixed on the inner side of the left end of the adapter plate, a hollow rotating shaft rotatably installed between the bearing seats, a scraper blade being clamped at the left edge of the hollow rotating shaft, a manual screw connected to the right side of the bearing seat to push the hollow rotating shaft to rotate counterclockwise so that the upper tip of the scraper blade is close to the outer circumference of the roll, and torsion springs are respectively provided at both ends of the hollow rotating shaft to push the hollow rotating shaft to rotate clockwise so that the upper tip of the scraper blade is away from the outer circumference of the roll.

[0007] Specifically, the hollow rotating shaft is fixed to both ends with support shafts that rotate with the bearing seats. The adapter plate has a central hole coaxial with the hollow rotating shaft. The torsion spring is located in the central hole of the adapter plate. The inner end of the torsion spring is engaged with the shaft end of the support shaft, and the outer end of the torsion spring is engaged with the inner wall of the central hole of the adapter plate.

[0008] Furthermore, a scraper slit is provided along the axial direction at the left edge of the hollow shaft, and the scraper blade is inserted into the hollow shaft through the scraper slit. Several support screws are connected at intervals on the outer circumference of the right side of the hollow shaft, and the ends of the support screws extend into the inner wall of the left side of the hollow shaft and are supported by the lower edge of the scraper blade.

[0009] To drive the hollow shaft to rotate, obtuse-angled notches are provided at both ends of the hollow shaft where they connect with the support shaft. The end of the manual screw abuts against the obtuse-angled notch surface to drive the hollow shaft to rotate counterclockwise.

[0010] To facilitate observation of whether the hollow shaft has rotated to the correct position, pointers are fixed on the outer circumferences of both ends of the hollow shaft, and scales are installed on the inner sides of the corresponding bearing seats.

[0011] To facilitate the collection of scraped impurities and waste, several axially spaced dropping holes are provided on the hollow rotating shaft on the right side of the scraper blade. A discharge hole is provided at the bottom of the hollow rotating shaft. A storage box for storing the impurities and waste discharged from the discharge hole is provided below the hollow rotating shaft. The two ends of the storage box are fixed to the inner side of the bearing seat.

[0012] A support beam is connected between the inner sides of the right end of the adapter plate. After the scraper device is removed from the pressure roller machine, the support beam ensures that the device still forms an integral structure.

[0013] The beneficial effects of this utility model are: by attaching the scraper blade to the left edge of the hollow rotating shaft, the upper tip of the scraper blade is pushed close to the outer circumference of the roll by a manual screw to scrape off the impurities and waste materials adhering to the outer circumference of the roll, and the scraper blade is reset by a torsion spring, thus making the scraper blade easy to install. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0016] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0017] Figure 3 This is a cross-sectional structural schematic diagram of the hollow rotating shaft described in this utility model.

[0018] Figure 4 This is a schematic diagram of the installation structure of the hollow rotating shaft and the support shaft described in this utility model.

[0019] Figure 5 This is a three-dimensional structural schematic diagram of the hollow rotating shaft described in this utility model from the front view.

[0020] Figure 6 This is a three-dimensional structural diagram of the hollow rotating shaft described in this utility model from a bottom-view perspective.

[0021] Figure 7 This is a schematic diagram of the usage state of this utility model.

[0022] In the diagram: 1. Machine base, 2. Adapter plate, 2-1. Angled slot, 3. Bearing seat, 4. Hollow rotating shaft, 4-1. Scraper slot, 5. Scraper blade, 6. Manual screw, 7. Torsion spring, 8. Support shaft, 8-1. Axial slot, 9. Support screw, 10. Obtuse angle notch, 11. Pointer, 12. Dial, 13. Material drop hole, 14. Discharge hole, 15. Storage box, 16. Support beam, 17. Electrode plate, 18. Upper roll, 19. Lower roll. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] like Figures 1-6 The illustrated scraper device for a roller press based on a water-soluble coating material includes a pair of bases 1 spaced apart from each other. When the scraper device is installed, the bases 1 are fixed to the wall panels on the front and rear sides of the roller press.

[0025] A transition plate 2 is fixed on the inner side of each of the two machine bases 1. A bearing seat 3 is fixed on the inner side of the left end of the transition plate 2. A support beam 16 is connected between the inner sides of the right end of the transition plate 2. The support beam 16 can ensure that the scraper device remains an integral structure after it is disassembled from the roller press.

[0026] A hollow shaft 4 is rotatably mounted between two bearing seats 3. A scraper slit 4-1 is axially opened on the left edge of the hollow shaft 4. A scraper blade 5 is inserted into the hollow shaft 4 from the scraper slit 4-1. Five support screws 9 are connected at intervals on the outer right circumference of the hollow shaft 4. The ends of the five support screws 9 extend obliquely into the inner left wall of the hollow shaft 4 and are supported on the lower edge of the scraper blade 5.

[0027] The hollow rotating shaft 4 is fixed to two ends of a support shaft 8 that rotates with the bearing in the bearing housing 3. A manual screw 6 is connected to the right side of the bearing housing 3. Obtuse angle notches 10 are provided at the joints of the hollow rotating shaft 4 and the support shaft 8. The end of the manual screw 6 abuts against the surface of the obtuse angle notch 10 and pushes the hollow rotating shaft 4 to rotate counterclockwise, so that the tip of the scraper blade 5 is close to the outer circumference of the roll. At this time, the scraper device is in working condition.

[0028] To facilitate observation of whether the rotation angle of the hollow shaft 4 is in place, pointers 11 are fixed on the outer circumferential surfaces of both ends of the hollow shaft 4, and a scale 12 is installed on the inner side of the corresponding bearing seat 3. A position that is easy to observe can be set. For example, if pointer 11 points to the middle position of the scale 12, it means that the rotation of the hollow shaft 4 is in place, and at this time the blade tip of the scraper 5 is close to the outer circumferential surface of the roll.

[0029] When the pressure roller machine is stopped, the upper tip of the scraper blade 5 needs to be moved away from the outer circumference of the roll. For this purpose, torsion springs 7 are respectively installed at both ends of the hollow rotating shaft 4. Through the rebound force of the torsion springs 7, the hollow rotating shaft 4 is pushed to rotate clockwise, so that the upper tip of the scraper blade 5 moves away from the outer circumference of the roll and returns to its original position.

[0030] The torsion spring 7 is installed using the following structure: the adapter plate 2 has a central hole coaxial with the hollow rotating shaft 4, the torsion spring 7 is installed in the central hole of the adapter plate 2, the end face of the support shaft 8 has an axial groove 8-1, the inner wall of the central hole of the adapter plate 2 has an oblique groove 2-1, the inner end of the torsion spring 7 is engaged in the axial groove, and the outer end of the torsion spring 7 is engaged in the oblique groove.

[0031] The hollow rotating shaft 4 on the right side of the scraper blade 5 has several axially spaced discharge holes 13. The bottom of the hollow rotating shaft 4 has a discharge hole 14. Below the hollow rotating shaft 4 is a storage box 15 for storing the impurities and waste discharged from the discharge hole 14. The two ends of the storage box 15 are fixed to the inner side of the bearing seat 3.

[0032] like Figure 7 As shown, taking the coated electrode sheet 17 as an example, the electrode sheet 17 passes between the upper roller 18 and the lower roller 19 of the roller press for rolling. At the beginning, the scraper blade 5 is in an upward vertical state. The manual screw 6 is rotated to drive the hollow shaft 4 to rotate. When the pointer 11 points to the middle position of the scale 12, the rotation of the manual screw 6 is stopped. At this time, the tip of the scraper blade 5 is in contact with the outer peripheral surface of the upper roller 18. As the upper roller 18 rotates counterclockwise, the scraper blade 5 scrapes off the impurities that are still attached to the outer peripheral surface of the upper roller 18. The scraped impurities enter the hollow shaft 4 through the discharge hole 13 and are discharged into the storage box 15 through the discharge hole 14.

[0033] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A roller press scraper device based on a water-soluble coating material, comprising a pair of spaced-apart machine bases (1), wherein an adapter plate (2) is fixed to the inner side of the machine bases (1), a bearing seat (3) is fixed to the inner side of the left end of the adapter plate (2), and a hollow rotating shaft (4) is rotatably mounted between the bearing seats (3), characterized in that: A scraper blade (5) is fitted on the left edge of the hollow shaft (4). A manual screw (6) is connected to the right side of the bearing seat (3) to push the hollow shaft (4) to rotate counterclockwise so that the upper tip of the scraper blade (5) is close to the outer circumference of the roll. Torsion springs (7) are respectively provided at both ends of the hollow shaft (4) to push the hollow shaft (4) to rotate clockwise so that the upper tip of the scraper blade (5) is away from the outer circumference of the roll.

2. The roller press scraper device based on water-soluble coating material as described in claim 1, characterized in that: The hollow rotating shaft (4) is fixed at both ends with a support shaft (8) that rotates with the bearing seat (3). The adapter plate (2) has a central hole coaxial with the hollow rotating shaft (4). The torsion spring (7) is located in the central hole of the adapter plate (2). The inner end of the torsion spring (7) is engaged with the shaft end of the support shaft (8), and the outer end of the torsion spring (7) is engaged with the inner wall of the central hole of the adapter plate (2).

3. The roller press scraper device based on water-soluble coating material as described in claim 2, characterized in that: The hollow shaft (4) has a scraper slit (4-1) along the axial direction on the left edge. The scraper blade (5) is inserted into the hollow shaft (4) through the scraper slit (4-1). A number of support screws (9) are connected at intervals on the outer circumference of the right side of the hollow shaft (4). The ends of the support screws (9) extend into the inner wall of the left side of the hollow shaft (4) and are supported on the lower edge of the scraper blade (5).

4. The roller press scraper device based on water-soluble coating material as described in claim 2, characterized in that: The hollow rotating shaft (4) has obtuse angle notches (10) at both ends where it connects with the support shaft (8). The end of the manual screw (6) abuts against the surface of the obtuse angle notch (10) to push the hollow rotating shaft (4) to rotate counterclockwise.

5. The roller press scraper device based on water-soluble coating material as described in claim 4, characterized in that: The hollow rotating shaft (4) has pointers (11) fixed on the outer circumference of both ends, and a scale (12) is installed on the inner side of the corresponding bearing seat (3).

6. The roller press scraper device based on water-soluble coating material as described in claim 1, characterized in that: The hollow rotating shaft (4) on the right side of the scraper blade (5) is provided with several axially spaced discharge holes (13), and the bottom of the hollow rotating shaft (4) is provided with a discharge hole (14). A storage box (15) for storing the impurities and waste discharged from the discharge hole (14) is provided below the hollow rotating shaft (4). The two ends of the storage box (15) are fixed to the inner side of the bearing seat (3).

7. The roller press scraper device based on water-soluble coating material as described in claim 1, characterized in that: A supporting beam (16) is connected between the inner side of the right end of the adapter plate (2).