A filter for polyurethane adhesive

Abstract

The utility model discloses a polyurethane adhesive filter, which relates to the technical field of polyurethane adhesive; the polyurethane adhesive filter comprises a protective device, the protective device comprises a filter housing, the top end of the filter housing is overlapped with a top cover, the inner wall of the filter housing is overlapped with a lifting plate, a separation device is arranged inside the filter housing, and a stirring device is arranged inside the top cover. The polyurethane adhesive filter, by arranging the separation device and the stirring device, can produce a centrifugal effect on the polyurethane adhesive in the filter cylinder by using an auger stirring rod, so that the polyurethane adhesive forms a downward movement trend in the filter cylinder, so that the polyurethane adhesive can fully and evenly contact with the inner wall of the filter cylinder during centrifugation, so that the impurities in the polyurethane adhesive can be separated into solid and liquid under the centrifugal effect, so that the polyurethane adhesive can be effectively filtered.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane adhesive, in particular to a filter for polyurethane adhesive. Background Art

[0002] Polyurethane adhesive refers to an adhesive containing a carbamate group (NHCOO) or an isocyanate group (NCO) in the molecular chain. Polyurethane adhesive has excellent chemical adhesion to wood, leather, metal, and other materials with smooth surfaces. Water-based polyurethane adhesive has the characteristics of low VOC content, low or no environmental pollution, and non-flammability.

[0003] After searching, it is proposed in a polyurethane adhesive production filtering device with patent publication number CN215310588U that "the utility model can filter the polyurethane adhesive solution flowing out of the discharge pipe of the reactor body by adding a filtering component. The elastic filter discs in the first and second boxes are arranged in opposite directions, which can realize the function of filtering layers on both sides, increase the purity of the polyurethane adhesive solution, and effectively improve the quality of the polyurethane adhesive solution."

[0004] However, the above scheme still has certain shortcomings in actual use. In this scheme, an elastic filter is used to filter the polyurethane adhesive. Since the elastic filter itself is inside the device and cannot be removed, the filtering effect of the elastic filter will be impaired in terms of filtering accuracy after long-term use. Utility Model Content

[0005] The utility model provides a filter for polyurethane glue to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polyurethane glue filter, comprising a protective device, the protective device comprising a filter housing, the top end of the filter housing is overlapped with a top cover, the inner wall of the filter housing is overlapped with a lifting plate, a separation device is arranged inside the filter housing, a stirring device is arranged inside the top cover, a lifting device is arranged on the inner wall of the filter housing, and a movable end of the lifting device is fixedly connected to the bottom end of the top cover;

[0007] The separation device comprises a separation cylinder and a filter cylinder, the separation cylinder is fixedly mounted on the inner wall of the filter housing, and the bottom end of the filter cylinder is fixedly connected to the top end of the lifting plate;

[0008] The stirring device comprises an auger stirring rod, and the auger stirring rod is rotatably connected to the top cover via an external motor;

[0009] The lifting device includes a driving frame, a linear motor is arranged inside the driving frame, a thread block is threadedly connected to the surface of the output shaft of the linear motor, the other end of the thread block is fixedly connected to a connecting plate, and the top end of the connecting plate is fixedly connected to the bottom end of the top cover.

[0010] Furthermore, a control panel is fixedly mounted on the front of the filter housing, and the control panel is electrically connected to the separation device, the stirring device and the lifting device respectively.

[0011] Furthermore, two rotating pins are hinged on the bottom end of the filter housing, and the rotating pins overlap the bottom end of the lifting plate.

[0012] Furthermore, the cavity between the separation cylinder and the filter cylinder is a hollow cavity, and a discharge pipe is fixedly installed on the outer side of the separation cylinder.

[0013] Furthermore, a cover plate is movably sleeved on the surface of the auger stirring rod, a feed pipe is fixedly mounted on the top end of the cover plate, and the top end of the feed pipe is located above the top cover.

[0014] Compared with the prior art, the utility model provides a polyurethane adhesive filter having the following features:

[0015] Beneficial effects:

[0016] The polyurethane adhesive filter is provided with a separation device and a stirring device, and can generate a centrifugal effect on the polyurethane adhesive in the filter cylinder by using an auger stirring rod, so that the polyurethane adhesive forms a movement trend from bottom to top in the filter cylinder, so that the polyurethane adhesive can fully and evenly contact the inner wall of the filter cylinder during centrifugation, so that impurities in the polyurethane adhesive can be separated from solid and liquid under the centrifugal effect, so that the polyurethane adhesive can be effectively filtered. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the protection device of the utility model;

[0019] Figure 3 for Figure 2 A magnified view of the structure in the middle.

[0020] In the figure: 1. protective device; 101. filter housing; 102. top cover; 103. lifting plate; 104. rotating pin; 2. control panel; 3. separation device; 301. separation cylinder; 302. filter cylinder; 303. hollow cavity; 304. discharge pipe; 4. stirring device; 401. auger stirring rod; 402. cover plate; 403. feed pipe; 5. lifting device; 501. drive frame; 502. linear motor; 503. connecting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 The utility model discloses a filter for polyurethane glue, including a protective device 1, wherein the protective device 1 includes a filter shell 101, a top cover 102 is overlapped on the top of the filter shell 101, a lifting plate 103 is overlapped on the inner wall of the filter shell 101, a separation device 3 is arranged inside the filter shell 101, a stirring device 4 is arranged inside the top cover 102, a lifting device 5 is arranged on the inner wall of the filter shell 101, and a movable end of the lifting device 5 is fixedly connected to the bottom end of the top cover 102.

[0023] The separation device 3 includes a separation cylinder 301 and a filter cylinder 302. The separation cylinder 301 is fixedly installed on the inner wall of the filter housing 101. The cavity between the separation cylinder 301 and the filter cylinder 302 is a hollow cavity 303. A discharge pipe 304 is fixedly installed on the outer side of the separation cylinder 301. The bottom end of the filter cylinder 302 is fixedly connected to the top end of the lifting plate 103.

[0024] The stirring device 4 includes an auger stirring rod 401 , and the auger stirring rod 401 is rotatably connected to the top cover 102 via an external motor.

[0025] By providing the separation device 3 and the stirring device 4, the auger stirring rod 401 can produce a centrifugal effect on the polyurethane adhesive in the filter cartridge 302, so that the polyurethane adhesive forms a movement trend from bottom to top in the filter cartridge 302, so that the polyurethane adhesive can fully and evenly contact the inner wall of the filter cartridge 302 during centrifugation, so that the impurities in the polyurethane adhesive can be separated from the solid and liquid under the centrifugal effect, so that the polyurethane adhesive can be effectively filtered.

[0026] The lifting device 5 includes a driving frame 501, and a linear motor 502 is arranged inside the driving frame 501. The output shaft surface of the linear motor 502 is threadedly connected with a thread block, and the other end of the thread block is fixedly connected with a connecting plate 503. The top end of the connecting plate 503 is fixedly connected to the bottom end of the top cover 102.

[0027] Specifically, a control panel 2 is fixedly mounted on the front of the filter housing 101 , and the control panel 2 is electrically connected to the separation device 3 , the stirring device 4 and the lifting device 5 , respectively.

[0028] In this embodiment, the control panel 2 can effectively control the operation of the separation device 3, the stirring device 4 and the lifting device 5, thereby improving the use stability of the separation device 3, the stirring device 4 and the lifting device 5.

[0029] Specifically, two rotating pins 104 are hinged at the bottom end of the filter housing 101 , and the rotating pins 104 overlap the bottom end of the lifting plate 103 .

[0030] In this embodiment, the rotating pin 104 is rotated to release the overlapping state of the rotating pin 104 and the lifting plate 103, so that the staff can pull down the lifting plate 103 to prompt the filter cartridge 302 to be disassembled from the filter cover shell 101, so that the staff can quickly clean the impurities inside the filter cartridge 302.

[0031] Specifically, a cover plate 402 is movably sleeved on the surface of the auger stirring rod 401 , a feed pipe 403 is fixedly mounted on the top end of the cover plate 402 , and the top end of the feed pipe 403 is located above the top cover 102 .

[0032] In this embodiment, the cover plate 402 can be used to seal the top of the filter cartridge 302, thereby preventing the polyurethane adhesive from overflowing.

[0033] When in use, the polyurethane adhesive is first passed into the filter cartridge 302 through the feed pipe 403, and then the auger stirring rod 401 is started, so that the auger stirring rod 401 begins to form a downward movement trend of the polyurethane adhesive in the filter cartridge 302, prompting the auger stirring rod 401 to produce a centrifugal effect on the polyurethane adhesive in the filter cartridge 302. During the centrifugal process, the polyurethane adhesive can fully and evenly contact the inner wall of the filter cartridge 302, so that the impurities in the polyurethane adhesive can be separated from the solid and liquid through the separation holes of the filter cartridge 302 under the centrifugal effect, so that the impurities are retained in the separation cartridge 301, and the polyurethane adhesive is thrown into the hollow cavity 303, and the polyurethane adhesive passes through the hollow cavity 303 and is discharged outward along the discharge pipe 304;

[0034] After the polyurethane adhesive is discharged, the lifting device 5 is started to make the output shaft thread block of the linear motor 502 move in the axial direction, so that the thread block drives the top cover 102 to move up and down through the connecting plate 503, so that the top cover 102 is gradually separated from the top of the filter housing 101, and the auger stirring rod 401 is pulled out from the filter cartridge 302, so that the auger stirring rod 401 is separated from the filter housing 101;

[0035] Then, the rotating pin 104 is rotated to release the overlapping state between the rotating pin 104 and the lifting plate 103, so that the staff can pull down the lifting plate 103 to cause the filter cartridge 302 to be disassembled from the filter cover shell 101, so that the staff can quickly clean the impurities inside the filter cartridge 302.

[0036] In summary, the polyurethane adhesive filter, by providing a separation device 3 and a stirring device 4, can use the auger stirring rod 401 to produce a centrifugal effect on the polyurethane adhesive located in the filter cylinder 302, so that the polyurethane adhesive forms a movement trend from bottom to top in the filter cylinder 302, so that the polyurethane adhesive can fully and evenly contact the inner wall of the filter cylinder 302 during centrifugation, so that impurities in the polyurethane adhesive can be separated from solid and liquid under the centrifugal effect, so that the polyurethane adhesive can be effectively filtered.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter for polyurethane glue, comprising a protective device (1), characterized in that: The protective device (1) comprises a filter housing (101), the top end of the filter housing (101) is overlapped with a top cover (102), the inner wall of the filter housing (101) is overlapped with a lifting plate (103), a separation device (3) is arranged inside the filter housing (101), a stirring device (4) is arranged inside the top cover (102), and a lifting device (5) is arranged on the inner wall of the filter housing (101), and the movable end of the lifting device (5) is fixedly connected to the bottom end of the top cover (102); The separation device (3) comprises a separation cylinder (301) and a filter cylinder (302); the separation cylinder (301) is fixedly mounted on the inner wall of the filter housing (101); and the bottom end of the filter cylinder (302) is fixedly connected to the top end of the lifting plate (103); The stirring device (4) comprises an auger stirring rod (401), and the auger stirring rod (401) is rotatably connected to the top cover (102) via an external motor; The lifting device (5) comprises a driving frame (501), a linear motor (502) is arranged inside the driving frame (501), a threaded block is threadedly connected to the surface of the output shaft of the linear motor (502), the other end of the threaded block is fixedly connected to a connecting plate (503), and the top end of the connecting plate (503) is fixedly connected to the bottom end of the top cover (102).

2. A polyurethane adhesive filter according to claim 1, characterized in that: A control panel (2) is fixedly mounted on the front of the filter housing (101), and the control panel (2) is electrically connected to the separation device (3), the stirring device (4) and the lifting device (5) respectively.

3. The polyurethane adhesive filter according to claim 1, characterized in that: The bottom end of the filter housing (101) is hinged with two rotating pins (104), and the rotating pins (104) overlap with the bottom end of the lifting plate (103).

4. The polyurethane adhesive filter according to claim 1, characterized in that: The cavity between the separation cylinder (301) and the filter cylinder (302) is a hollow cavity (303), and a discharge pipe (304) is fixedly installed on the outer side of the separation cylinder (301).

5. The polyurethane adhesive filter according to claim 1, characterized in that: A cover plate (402) is movably sleeved on the surface of the auger stirring rod (401), a feed pipe (403) is fixedly mounted on the top end of the cover plate (402), and the top end of the feed pipe (403) is located above the top cover (102).

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