Quick-change type scraper assembly for papermaking processing

Abstract

A mounting frame is formed by fixedly connecting a vertical plate and a transverse plate, a rotating shaft is arranged at the front end of the vertical plate, and a support a is arranged on the upper surface of the transverse plate; a support b is arranged at the left end of the lower surface of the connecting rod, and a scraper fixing frame is connected to the right end of the upper surface of the connecting rod; the electric push rod is hinged between the support a and the support b; a connecting groove a, an electromagnet and a limiting groove a are sequentially arranged on the upper surface of a lower fixing frame in the scraper fixing frame, an upper fixing frame is located above the lower fixing frame, a connecting groove b, an iron sheet and a limiting groove b are sequentially arranged on the lower surface of the upper fixing frame, and an elastic connecting piece is fixedly arranged in a connecting gap formed by matching of the connecting groove a and the connecting groove b. The blade is located between the lower fixing frame and the upper fixing frame and connected with a limiting block, and the limiting block is located in a limiting gap formed by matching of the limiting groove a and the limiting groove b. The device has the advantages of reasonable overall structural design, and rapidness and convenience in scraper position adjustment and replacement operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of papermaking processing, and particularly relates to a quick-change scraper assembly for papermaking processing. Background Art

[0002] The scraper is an indispensable component in papermaking equipment. It is mainly installed at the pressure roller and is used to scrape off the paper scraps remaining on the surface of the pressure roller. The scraper is mainly composed of a knife holder and a scraper blade limitedly installed on the knife holder. Among them, the scraper blade is a wearing part and needs to be replaced frequently. In the prior art, the knife holder and the scraper blade used are fixed together by two rows of bolts. When the scraper blade needs to be replaced, first, the scraper needs to be disassembled from the paper machine as a whole, and then the bolts need to be removed before it can be replaced. This wastes manpower and time and delays production. Therefore, in order to solve the above problems, it is necessary to develop a quick-change scraper assembly for papermaking processing with a reasonable overall structural design, fast and convenient scraper position adjustment and replacement operation. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a quick-change scraper assembly for papermaking processing, which has a reasonable overall structural design and allows for quick and convenient scraper position adjustment and replacement operations.

[0004] The purpose of the utility model is achieved as follows: a quick-change scraper assembly for papermaking processing, comprising a mounting frame, a connecting rod, an electric push rod and a blade, the mounting frame being L-shaped as a whole, and being vertically fixedly connected by a vertical plate and a horizontal plate, wherein the upper part of the front end surface of the vertical plate is longitudinally fixedly provided with a rotating shaft, and the upper end of the horizontal plate is fixedly provided with a support a at one end away from the vertical plate; the connecting rod is rotatably sleeved on the outside of the rotating shaft, the left end of its lower surface is fixedly provided with a support b, and the right end of the upper surface is fixedly connected to the scraper fixing frame; the electric push rod is inclined as a whole, the lower end of which is hinged to the support a, and the upper end is hinged to the support b; the scraper fixing frame is composed of a lower fixing frame, an upper fixing frame and an elastic connecting piece, the lower surface of the lower fixing frame is fixedly connected to the connecting rod, and the left end of the upper surface is longitudinally provided with a connecting groove a, a limiting groove a is longitudinally provided at the right end of the upper surface, an electromagnet is longitudinally fixedly provided at the middle part of the upper surface, the upper fixing frame has the same structure as the lower fixing frame, and is symmetrically arranged above the lower fixing frame, and a connecting groove b is longitudinally provided at the left end of the lower surface of the upper fixing frame, a limiting groove b is longitudinally provided at the right end of the lower surface, and an iron sheet is longitudinally fixedly provided at the middle part of the lower surface, there are multiple elastic connecting members, which are respectively and evenly fixed vertically in the connecting gap formed by the cooperation of the connecting groove a and the connecting groove b; the blade is located between the lower fixing frame and the upper fixing frame, one end of which protrudes outward and is located outside the scraper fixing frame, and the other end is located in the limiting gap formed by the cooperation of the limiting groove a and the limiting groove b, and is fixedly connected to the limiting block, and the structure of the limiting block is coordinated with the structure of the limiting gap.

[0005] Furthermore, an inclined reinforcement rod is fixedly provided at the connection between the vertical plate and the horizontal plate.

[0006] Furthermore, the elastic connecting member is composed of a guide telescopic rod and a spring sleeved on the outside of the guide telescopic rod.

[0007] Furthermore, auxiliary pick-and-place blocks are fixedly provided at the middle of the front end surface and the middle of the rear end surface of the limiting block.

[0008] Furthermore, the bottom surface of the limiting groove a and the bottom surface of the limiting groove b are both fixedly provided with an anti-slip layer.

[0009] Beneficial effects of the utility model: The utility model is provided with a vertical plate, a horizontal plate, a rotating shaft, a support a, an electric push rod, a support b and a connecting rod, and utilizes the rotating sleeve connection between the connecting rod and the rotating shaft, and the hinge connection between the two ends of the electric push rod and the support a and the support b respectively. When in use, the electric push rod can be controlled to retract and expand, thereby driving the connecting rod to rotate around the rotating shaft as the center, and then through the rotation of the connecting rod, the scraper fixing frame and the blade fixed at the right end thereof are driven to adjust their positions, thereby realizing the position switching of the blade working position-standby position;

[0010] By setting the limit slot a, the limit slot b, the electromagnet, the iron sheet and the limit block, when in use, the magnetic attraction force of the iron sheet after the electromagnet is energized can be used to achieve close contact between the limit slot a and the limit slot b and the limit block, and then the friction force generated when they are in close contact can be used to achieve the limited installation of the limit block and the blade. At the same time, by setting the connecting slot a, the connecting slot b and the elastic connecting member, the fixed connection between the elastic connecting member and the connecting slot a and the connecting slot b can be achieved. The elastic action of the elastic connecting member itself can be used to reset and expand the limit slot a and the limit slot b after the electromagnet is powered off and loses the magnetic attraction force on the iron sheet, thereby releasing the limit on the limit block and the blade. The utility model adopts this structure to increase the replacement efficiency of the blade and the convenience of the replacement operation. In general, the utility model has the advantages of reasonable overall structural design, fast and convenient scraper position adjustment and replacement operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view of the utility model when it is in working state.

[0012] Figure 2 It is a front view of the utility model when it is in a non-working state.

[0013] Figure 3 It is a front view of the connection between the scraper fixing frame and the blade in the utility model.

[0014] In the figure: 1. Mounting frame; 11. Vertical plate; 12. Horizontal plate; 13. Rotating shaft; 14. Support a; 15. Reinforcement rod; 2. Connecting rod; 21. Support b; 3. Electric push rod; 4. Blade; 41. Limit block; 42. Auxiliary pick-and-place block; 5. Scraper fixing frame; 51. Lower fixing frame; 52. Upper fixing frame; 53. Elastic connecting piece; 54. Connecting slot a; 55. Limiting slot a; 56. Electromagnet; 57. Connecting slot b; 58. Limiting slot b; 59. Iron sheet. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Example: Figure 1 、 Figure 2 、 Figure 3 As shown, a quick-change scraper assembly for papermaking processing includes a mounting frame 1, a connecting rod 2, an electric push rod 3 and a blade 4. The mounting frame 1 is L-shaped as a whole, and is composed of a vertical plate 11 and a horizontal plate 12 fixedly connected vertically, wherein a rotating shaft 13 is longitudinally fixedly provided on the upper part of the front end surface of the vertical plate 11, and a support a14 is fixedly provided on the upper surface of the horizontal plate 12 away from the vertical plate 11; the connecting rod 2 is rotatably sleeved on the outside of the rotating shaft 13, and a support b21 is fixedly provided on the left end of its lower surface, and a scraper fixing frame 5 is fixedly connected to the right end of its upper surface; the electric push rod 3 is inclined as a whole, and its lower end is hinged to the support a14, and its upper end is hinged to the support b21; the scraper fixing frame 5 is composed of a lower fixing frame 51, an upper fixing frame 52 and an elastic connecting member 53, the lower surface of the lower fixing frame 51 is fixedly connected to the connecting rod 2, the left end of the upper surface is longitudinally provided with a connecting groove a54, and the upper surface A limiting groove a55 is longitudinally provided at the right end of the surface, and an electromagnet 56 is longitudinally fixedly provided in the middle of the upper surface. The upper fixing frame 52 has the same structure as the lower fixing frame 51 and is symmetrically arranged above the lower fixing frame 51, and a connecting groove b57 is longitudinally provided at the left end of the lower surface of the upper fixing frame 52, a limiting groove b58 is longitudinally provided at the right end of the lower surface, and an iron sheet 59 is longitudinally fixedly provided in the middle of the lower surface. There are multiple elastic connecting members 53, which are respectively and evenly fixed vertically in the connecting gap formed by the connecting groove a54 and the connecting groove b57; the blade 4 is located between the lower fixing frame 51 and the upper fixing frame 52, one end of which protrudes outward and is located outside the scraper fixing frame 5, and the other end is located in the limiting gap formed by the limiting groove a55 and the limiting groove b58, and is fixedly connected to the limiting block 41, and the structure of the limiting block 41 is matched with the structure of the limiting gap.

[0017] An inclined reinforcement rod 15 is fixedly provided at the connection between the vertical plate 11 and the horizontal plate 12, and the reinforcement rod 15 can increase the stability of the connection between the vertical plate 11 and the horizontal plate 12; the elastic connecting member 53 is composed of a guide telescopic rod and a spring sleeved on the outside of the guide telescopic rod; the middle part of the front end face and the middle part of the rear end face of the limit block 41 are fixedly provided with an auxiliary pick-up and placement block 42, and the auxiliary pick-up and placement block 42 can increase the convenience of the pick-up and placement operation of the limit block 41 and the blade 4; the bottom surface of the limit groove a55 and the bottom surface of the limit groove b58 are fixedly provided with an anti-slip layer.

[0018] Before use, when disassembling and replacing the scraper, the utility model first cuts off the power circuit of the electromagnet 56, so that the electromagnet 56 loses its magnetic attraction to the iron sheet 59. At this time, the upper fixing frame 52 is moved upward as a whole by the thrust of the connecting groove b57 and the upper fixing frame 52 when the elastic connecting member 53 is reset and expanded, thereby releasing the pressure connection between the limit groove a55 and the limit groove b58 on the limit block 41, and then releasing the limit of the scraper fixing frame 5 on the limit block 41 and the blade 4. At this point, the limit block 41 and the blade 4 can be withdrawn from between the lower fixing frame 51 and the upper fixing frame 52 by external force and the auxiliary pick-up block 42. After that, the replaced limit block 41 and blade 4 are slid and placed between the lower fixing frame 51 and the upper fixing frame 52, and the power circuit of the electromagnet 56 is turned on. At this time, the magnetic attraction of the electromagnet 56 on the iron sheet 59 after being energized can cause the elastic connecting member 53 to shrink and the upper fixing frame 52 to move downward. At this point, the downward movement of the upper fixing frame 52 can be used to achieve the pressure limit of the limit groove a55 and the limit groove b58 to cooperate with the limit groove 58 to limit the limit block 41, thereby completing the limit installation of the limit block 41 and the blade 4 inside the scraper fixing frame 5; the utility model adopts this structure to increase the replacement efficiency of the blade 4 and the convenience of the replacement operation.

[0019] When the scraper is replaced, the utility model can be used by utilizing the rotating sleeve connection between the connecting rod 2 and the rotating shaft 13, and the hinge connection between the two ends of the electric push rod 3 and the support a14 and the support b21 respectively, so as to control the contraction and expansion of the electric push rod 3, drive the connecting rod 2 to rotate around the rotating shaft 13 as the center, and then through the rotation of the connecting rod 2, drive the scraper fixing frame 5 and the blade 4 fixed at its right end to adjust the position, realize the position switching of the blade 4 from the standby position to the working position; in general, the utility model has the advantages of reasonable overall structural design and fast and convenient scraper position adjustment and replacement operation.

[0020] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A quick-change scraper assembly for papermaking, comprising a mounting frame (1), a connecting rod (2), an electric push rod (3) and a blade (4), characterized in that: The mounting frame (1) is L-shaped as a whole and is formed by a vertical plate (11) and a horizontal plate (12) connected vertically and fixedly, wherein a rotating shaft (13) is fixedly provided on the upper portion of the front end surface of the vertical plate (11), and a support a (14) is fixedly provided on the upper surface of the horizontal plate (12) away from the vertical plate (11); the connecting rod (2) is rotatably sleeved on the outside of the rotating shaft (13), and a support b (21) is fixedly provided on the left end of its lower surface, and a scraper fixed on the right end of its upper surface. Fixed frame (5); the electric push rod (3) is tilted as a whole, and its lower end is hinged to the support a (14), and its upper end is hinged to the support b (21); the scraper fixed frame (5) is composed of a lower fixed frame (51), an upper fixed frame (52) and an elastic connecting member (53), the lower surface of the lower fixed frame (51) is fixedly connected to the connecting rod (2), the left end of the upper surface is longitudinally provided with a connecting groove a (54), and the right end of the upper surface is longitudinally provided with a limiting groove a (55), An electromagnet (56) is longitudinally fixedly provided in the middle of the upper surface. The upper fixing frame (52) has the same structure as the lower fixing frame (51) and is symmetrically arranged above the lower fixing frame (51). A connecting groove b (57) is longitudinally provided at the left end of the lower surface of the upper fixing frame (52), a limiting groove b (58) is longitudinally provided at the right end of the lower surface, and an iron sheet (59) is longitudinally fixedly provided in the middle of the lower surface. There are a plurality of elastic connecting members (53), which are respectively and uniformly fixed vertically in the connecting gap formed by the matching of the connecting groove a (54) and the connecting groove b (57). The blade (4) is located between the lower fixing frame (51) and the upper fixing frame (52), one end of which protrudes outward and is located outside the scraper fixing frame (5), and the other end is located in the limiting gap formed by the matching of the limiting groove a (55) and the limiting groove b (58), and is fixedly connected to the limiting block (41), and the structure of the limiting block (41) matches the structure of the limiting gap.

2. A quick-change scraper assembly for papermaking according to claim 1, characterized in that: An inclined reinforcement rod (15) is fixedly provided at the connection between the vertical plate (11) and the horizontal plate (12).

3. The quick-change scraper assembly for papermaking according to claim 1, characterized in that: The elastic connecting member (53) is composed of a guide telescopic rod and a spring sleeved on the outside of the guide telescopic rod.

4. A quick-change scraper assembly for papermaking according to claim 1, characterized in that: Auxiliary pick-and-place blocks (42) are fixedly provided at the middle of the front end surface and the middle of the rear end surface of the limiting block (41).

5. The quick-change scraper assembly for papermaking according to claim 1, characterized in that: The bottom surface of the limiting groove a (55) and the bottom surface of the limiting groove b (58) are both fixedly provided with an anti-slip layer.

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