Novel scraping knife device

Abstract

The utility model discloses a novel scraper device which comprises a left supporting sleeve and a right supporting sleeve which are arranged in a left-right spaced mode, a rotating shaft is arranged between the left supporting sleeve and the right supporting sleeve in a rotating mode, the left end or the right end of the rotating shaft is in transmission connection with a rotating power mechanism, the rotating shaft is coaxially sleeved with a scraper body, and the cross section of the scraper body is cylindrical. A mounting base is arranged on the front side of the outer circle of the scraper body, a mounting plane is arranged on the upper side of the mounting base, a pressing plate is arranged on the mounting plane and connected through a plurality of sunk screws evenly arranged at intervals in the left-right direction, a scraper blade is clamped between the bottom face of the pressing plate and the mounting plane and located on the front sides of the sunk screws, and the front side edge of the scraper blade extends out of the mounting base and the front side of the pressing plate. The scraper body and the mounting seat are high in rigidity, not prone to deformation and light in weight, the scraper blade is clamped on the mounting seat through the pressing plate and the lining plate, and the scraper blade is high in stability and easy to mount and dismount, so that the problem of non-uniform pasting caused by deformation of the scraper body can be well solved.

Description

Technical Field

[0001] This utility model belongs to the field of leather production technology, and specifically relates to a novel scraper knife device for sizing. Background Art

[0002] In the production of artificial leather, whether it's the finishing and sizing of the base fabric, the gloss or matte treatment of the leather surface, or the printing of patterns, a sizing scraper device is indispensable. The flatness of the scraper device directly affects the uniformity of sizing. Traditional scraper devices use unequal angle steel for the scraper body, resulting in a slender structure with insufficient rigidity. If ribs are welded on, the scraper body will deform after processing or after a period of use, leading to poor flatness. This causes uneven contact between the scraper blade and the sizing roller, resulting in uneven sizing, which is a major problem in surface sizing. Therefore, it is urgent to optimize and improve the existing sizing scraper device.

[0003] To enhance the overall rigidity of the scraper body, it maintains good flatness after processing or during use, even after a period of time. Utility Model Content

[0004] In order to solve the above-mentioned technical problems in the prior art, this utility model provides a novel scraper knife device with high structural strength, resistance to deformation, and uniform scraping.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a novel scraper device, comprising a left support sleeve and a right support sleeve spaced apart on the left and right sides, a rotating shaft rotatably disposed between the left and right support sleeves, a rotating power mechanism being driven to the left or right end of the rotating shaft, a scraper body being coaxially mounted on the rotating shaft, the scraper body having a cylindrical cross-section, a mounting seat being provided on the front side of the outer circle of the scraper body, a mounting plane being provided on the upper side of the mounting seat, a pressure plate being provided on the mounting plane, the pressure plate being connected by a number of countersunk screws evenly spaced along the left and right direction, a scraper blade being clamped between the bottom surface of the pressure plate and the mounting plane in front of the countersunk screws, the front side of the scraper blade extending out of the mounting seat and the front side of the pressure plate.

[0006] The upper surface of the scraper blade is provided with a liner that is pressed against the bottom surface of the pressure plate, and the front side of the liner is located at the rear side of the front side of the scraper blade.

[0007] The mounting base and scraper body are integrally cast, and the bottom surface of the mounting base is an inclined surface that is higher in the front and lower in the back.

[0008] The outer circle of the rotating shaft and the inner circle of the scraper are connected by a flat key.

[0009] The left support sleeve is threaded with a left set screw along the radial direction, and the right support sleeve is threaded with a right set screw along the radial direction. The inner ends of the left and right set screws are press-fitted with the inner circle of the rotating shaft.

[0010] Compared with the prior art, the present invention has the following advantages by adopting the above technical solution:

[0011] (1) The scraper body and the mounting base are integrally cast. The mounting base is relatively thick, and the thickness gradually decreases from back to front. The casting material can be aluminum alloy, which is not only lightweight, but also makes the mounting base less prone to deformation and ensures strength. The bottom surface of the mounting base is an inclined surface with a higher front and lower back. This ensures that the bottom surface of the mounting base does not contact the sizing roller and does not affect the normal operation of the sizing roller. At the same time, the cross-section of the mounting base gradually decreases from back to front, which does not affect the strength of the mounting base.

[0012] (2) The scraper blade is clamped on the mounting base by a pressure plate and secured by several countersunk screws, making it easy to install and remove. The thickness and rigidity of the liner are greater than those of the blade, and the front side of the liner is close to the front side of the blade. The liner serves to enhance the strength of the front side of the scraper blade.

[0013] (3) The rotating shaft is made of hollow tube, which reduces weight and cost. The outer circle of the rotating shaft and the inner circle of the scraper are connected by a flat key, which ensures rotational transmission while facilitating installation and disassembly.

[0014] In summary, the scraper body and mounting base of this utility model are integrally cast from aluminum alloy, which has strong rigidity, is not easily deformed, and is lightweight. The scraper blade is clamped on the mounting base by a pressure plate and a liner plate, which makes the scraper blade stable, easy to install and disassemble, thus effectively solving the problem of uneven coating caused by scraper body deformation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 yes Figure 1 Sectional view of AA;

[0017] Figure 3 This is a schematic diagram of the present invention during the scraping process. DETAILED DESCRIPTION

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0019] like Figures 1-3As shown, a novel scraper device of this utility model includes a left support sleeve 1 and a right support sleeve 2 arranged at intervals. A rotating shaft 3 is rotatably arranged between the left support sleeve 1 and the right support sleeve 2. A rotating power mechanism is driven to the left or right end of the rotating shaft 3. A scraper body 4 is coaxially mounted on the rotating shaft 3. The scraper body 4 has a cylindrical cross-section. A mounting seat 5 is provided on the front side of the outer circle of the scraper body 4. A mounting plane 6 is provided on the upper side of the mounting seat 5. A pressure plate 7 is provided on the mounting plane 6. The pressure plate 7 is connected by several countersunk screws 8 evenly spaced in the left and right direction. A scraper blade 9 is clamped between the bottom surface of the pressure plate 7 and the mounting plane 6 in front of the countersunk screws 8. The front side of the scraper blade 9 extends out of the mounting seat 5 and the front side of the pressure plate 7.

[0020] The upper surface of the scraper blade 9 is provided with a liner plate 10 that is pressed against the bottom surface of the pressure plate 7, and the front side of the liner plate 10 is located at the rear side of the front side of the scraper blade 9.

[0021] Mounting base 5 and scraper body 4 are integrally formed by casting. The bottom surface of mounting base 5 is an inclined surface 11 with the front higher than the back.

[0022] The outer circle of the rotating shaft 3 and the inner circle of the scraper body 4 are connected by a flat key 12.

[0023] The left support sleeve 1 is threaded with a left set screw 13 along the radial direction, and the right support sleeve 2 is threaded with a right set screw 14 along the radial direction. The inner ends of the left set screw 13 and the right set screw 14 are press-fitted with the inner circle of the rotating shaft 3.

[0024] The bottom of the rotary power mechanism, left support sleeve 1, and right support sleeve 2 of this utility model are mounted on the bracket on the rear side of the sizing roller 15, and the rotating shaft 3 is parallel to the center line of the sizing roller 15. When adjusting the scraper blade 9, first loosen the left set screw 13 and the right set screw 14, start the rotary power mechanism, the rotary power mechanism drives the rotating shaft 3 to rotate, and the mounting seat 5 integrated with the rotating shaft 3 drives the scraper blade 9 to rotate until the front side of the scraper blade 9 contacts the upper rear side of the sizing roller 15, then close the rotary power mechanism, and then tighten the left set screw 13 and the right set screw 14, and securely connect the left and right ends of the rotating shaft 3 to the left support sleeve 1 and the right support sleeve 2 respectively. The lower part of the sizing roller 15 extends into the sizing tank 16 containing the sizing liquid, and after the lower part of the outer circle of the sizing roller 15 is covered with sizing liquid, it rotates upward (rotation direction as shown). Figure 3 When the middle arrow indicates the location of the scraper blade 9, the excess slurry on the outer circle of the slurry roller 15 is scraped off under the action of the scraper blade 9. A slurry baffle 17 is provided on the inclined surface 11 at the bottom of the mounting base 5. The lower side of the slurry baffle 17 is bent forward and downward and located above the slurry trough 16. The scraped-off slurry flows into the slurry trough 16 along the slurry baffle 17.

[0025] The above embodiments illustrate the basic principles and features of this utility model. However, the above descriptions are merely preferred embodiments and are not limited to these embodiments. Those skilled in the art, inspired by this patent, can make many modifications and improvements without departing from the spirit and scope of the claims, all of which fall within the protection scope of this utility model. Therefore, the patent and its scope of protection should be determined by the appended claims.

Claims

1. A novel scraper device, comprising a left support sleeve and a right support sleeve spaced apart, wherein a rotating shaft is rotatably connected between the left and right support sleeves, and a rotating power mechanism is driven to the left or right end of the rotating shaft, characterized in that: A scraper body is coaxially mounted on the rotating shaft. The scraper body has a cylindrical cross-section. A mounting seat is provided on the front side of the outer circle of the scraper body. A mounting plane is provided on the upper side of the mounting seat. A pressure plate is provided on the mounting plane. The pressure plate is connected by several countersunk screws that are evenly spaced in the left and right direction. The scraper blade is clamped between the bottom surface of the pressure plate and the mounting plane in front of the countersunk screws. The front side of the scraper blade extends out of the mounting seat and the front side of the pressure plate.

2. The novel scraper device according to claim 1, characterized in that: The upper surface of the scraper blade is provided with a liner that is pressed against the bottom surface of the pressure plate, and the front side of the liner is located at the rear side of the front side of the scraper blade.

3. The novel scraper device according to claim 1, characterized in that: The mounting base and scraper body are integrally cast, and the bottom surface of the mounting base is an inclined surface that is higher in the front and lower in the back.

4. A novel scraper device according to any one of claims 1-3, characterized in that: The outer circle of the rotating shaft and the inner circle of the scraper are connected by a flat key.

5. A novel scraper device according to any one of claims 1-3, characterized in that: The left support sleeve is threaded with a left set screw along the radial direction, and the right support sleeve is threaded with a right set screw along the radial direction. The inner ends of the left and right set screws are press-fitted with the inner circle of the rotating shaft.

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