Scraper blade with groove

Abstract

The scraper blade with the groove comprises a scraper body and further comprises a grinding head arranged on the scraper body, and the front face of the scraper body comprises a first plane, a second plane protruding out of the first plane, a cross section connecting the first plane and the second plane and a first inclined face fixing the grinding head. The grinding head comprises a first plane flush with the first plane, a second plane protruding out of the first plane and a connecting face connecting the first plane and the second plane, and the first plane, the first plane, the cross section and the connecting face form a groove. The grinding head has the advantages that the joint of the second face of the grinding head and the upper end face of the grinding head is wrinkled, and chippings generated in the wrinkling process flow into the groove and are discharged along the groove. And as the second surface of the grinding head protrudes out of the first plane, the second surface and the Yankee dryer generate pre-grinding, and the wear resistance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a scraper field, concretely is a scraper blade with a groove. BACKGROUND

[0002] The scraper blade is widely used in the creping process of the papermaking process. The creping effect will determine the softness and tensile strength of the paper. During the creping process, the blade has continuous friction with the high-speed rotating yankee cylinder. If the creping area of the scraper tip is worn, defective products will be produced, and the blade has to be replaced. The traditional scraper blade is a very simple edge shape at the blade tip. The edge of the blade forms a line contact with the yankee cylinder, which causes the blade tip to be easily worn (as shown by Figure 4 and Figure 5 illustration). Moreover, the side surface of the traditional blade is a plane. The debris generated during the creping process easily flows straight downward along the blade to the installation gap below, causing difficulty in cleaning the debris.

[0003] Therefore, it is necessary to provide a scraper blade with a groove. SUMMARY

[0004] The scraper blade with a groove provided by the utility model effectively solves the problems of short service life and inconvenient debris cleaning of the existing scraper blade during the creping operation.

[0005] The technical scheme adopted by the utility model is:

[0006] The scraper blade with a groove comprises a blade body and a grinding head arranged on the blade body. The front surface of the blade body comprises a first plane, a second plane protruding from the first plane, a transverse section connecting the first plane and the second plane, and a first inclined surface for fixing the grinding head. The grinding head comprises a first plane flush with the first plane of the blade body, a second plane protruding from the first plane, and a connecting surface connecting the first plane and the second plane. The first plane, the second plane, the transverse section, and the connecting surface form a groove.

[0007] Further, the second plane is inclined toward the back surface of the blade body.

[0008] Further, the upper end surface of the grinding head is flush with the upper end surface of the blade body.

[0009] Further, the back surface of the blade body is parallel to the first plane, and the included angle between the upper end surface of the blade body and the back surface of the blade body is obtuse.

[0010] Further, the first inclined surface is inclined toward the back surface of the blade body.

[0011] The utility model discloses the beneficial effects of: through the connection of the second surface of the grinding head and the upper end surface of the grinding head, wrinkles, and the debris generated in the wrinkling process flows into the groove and is discharged along the groove. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The overall schematic diagram of the slotted doctor blade provided by the embodiment of the application.

[0013] Figure 2 The schematic diagram of the slotted doctor blade provided by the embodiment of the application in wrinkling paper on the Yankee cylinder.

[0014] Figure 3 The Figure 2 The enlarged schematic diagram of the A area.

[0015] Figure 4 The schematic diagram of the traditional doctor blade in wrinkling paper on the Yankee cylinder.

[0016] Figure 5 The Figure 4 The enlarged schematic diagram of the A area.

[0017] In the figure, 1 is a doctor body, 2 is a grinding head, 101 is a first plane, 102 is a second plane, 103 is a transverse section, 201 is a first plane, 202 is a second surface, 203 is a connecting surface, 3 is a Yankee cylinder surface, 4 is paper to be wrinkled and peeled, 5 is a traditional doctor blade, and 100 is a groove. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the drawings.

[0019] As Figure 1 And Figure 3 As shown in the figure, the slotted doctor blade provided by the embodiment of the application comprises a doctor body 1, and further comprises a grinding head 2 arranged on the doctor body 1, the front surface of the doctor body 1 comprises a first plane 101, a second plane 102 protruding from the first plane 101, a transverse section 103 connecting the first plane 101 and the second plane 102, and a first inclined surface fixing the grinding head 2, the grinding head 2 comprises a first plane 201 flush with the first plane 101, a second surface 202 protruding from the first plane 201, and a connecting surface 203 connecting the first plane 201 and the second surface 202, and the first plane 201, the first plane 101, the transverse section 103 and the connecting surface 203 form a groove 100.

[0020] The scraper blade with the groove 100 of the present application is actually used, and the wrinkles are generated at the connection between the second surface 202 of the grinding head 2 and the upper end surface of the grinding head 2. The generated scraps flow into the groove 100 and are discharged along the groove 100. Since the second surface 202 of the grinding head 2 protrudes from the first surface 201, the pre-grinding is generated between the second surface 202 and the Yankee cylinder, and the wear resistance is improved.

[0021] In the above design, the scraps generated in the wrinkling process can be discharged in time through the groove 100, and the design of the grinding head 2 can improve the wear resistance and enhance the service life.

[0022] Specifically, as shown in Figure 1 , Figure 2 and Figure 3 , the second surface 202 is inclined to the back side of the blade body 1. That is, the lower end of the second surface 202 protrudes from the upper end of the second surface 202.

[0023] In the above design, by inclining the second surface 202 to the back side of the blade body 1, the surface contact between the second surface 202 and the outer periphery of the Yankee cylinder can be formed during the wrinkling process. Compared with the point contact between the blade edge of the existing scraper blade and the Yankee cylinder, the service life of the grinding head 2 can be improved.

[0024] Specifically, as shown in Figure 3 , the upper end surface of the grinding head 2 is flush with the upper end surface of the blade body 1.

[0025] In the above design, the upper end surface of the grinding head 2 is flush with the upper end surface of the blade body 1, which can ensure that the wrinkled paper will not be stuck between the grinding head 2 and the blade body 1 during the rolling process.

[0026] Specifically, as shown in Figure 1 , the back surface of the blade body 1 is parallel to the first surface 101, and the upper end surface of the blade body 1 forms an obtuse angle with the back surface of the blade body 1.

[0027] In the above design, the upper end surface of the blade body 1 forms an obtuse angle with the back surface of the blade body 1. After the scraper blade is installed to the back side, the upper end surface of the blade body 1 will also be inclined to the back surface, which facilitates the rapid rolling of the wrinkled paper.

[0028] Specifically, as shown in Figure 1 , the first inclined surface is inclined to the back side of the blade body 1.

[0029] In the above design, the first inclined surface is inclined to the back side of the blade body 1, which facilitates the sufficient strength of the blade body 1 after being formed with the grinding head 2.

[0030] It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A grooved scraper blade, comprising a blade body (1), characterized in that: It also includes a grinding head (2) disposed on the blade body (1). The front surface of the blade body (1) includes a first plane (101), a second plane (102) protruding from the first plane (101), a cross section (103) connecting the first plane (101) and the second plane (102), and a first inclined surface for fixing the grinding head (2). The grinding head (2) includes a first plane (201) flush with the first plane (101), a second plane (202) protruding from the first plane (201), and a connecting surface (203) connecting the first plane (201) and the second plane (202). The first plane (201), the first plane (101), the cross section (103), and the connecting surface (203) form a groove (100).

2. The grooved scraper blade according to claim 1, characterized in that: The second surface (202) is inclined to the back side of the blade body (1).

3. The grooved scraper blade according to claim 1, characterized in that: The upper surface of the grinding head (2) is flush with the upper surface of the cutter body (1).

4. The grooved scraper blade according to claim 1, characterized in that: The back surface of the blade body (1) is parallel to the first plane (101), and the angle between the upper end face of the blade body (1) and the back surface of the blade body (1) is an obtuse angle.

5. The grooved scraper blade according to claim 1, characterized in that: The first inclined surface is inclined to the back side of the blade body (1).

Images