Polyurethane resin discharging and screening device

Abstract

The utility model relates to the technical field of polyurethane resin production, in particular to a polyurethane resin discharging and screening device which comprises a discharging hopper, a discharging pipe is fixedly installed on the discharging hopper, a fixing mechanism is installed on the discharging hopper and comprises an installing plate and a clamping plate, the installing plate is fixedly connected to the bottom end of the discharging hopper, and the clamping plate is fixedly connected to the bottom end of the discharging hopper. A clamping plate is slidably connected to the mounting plate, an abutting plate is fixedly connected to the mounting plate, a lead screw is rotatably connected to the mounting plate, the lead screw is in threaded connection with the clamping plate, a fixing block is fixedly mounted on the lead screw, a rotating disc is fixedly connected to the fixing block, and a main body mechanism is fixed to the discharging hopper. A screening mechanism is arranged on the main body mechanism; the rotating disc rotates, the lead screw drives the two clamping plates to oppositely slide in the mounting plate, then the clamping plates clamp the material bag connected to the discharging pipe in a sleeving mode, and therefore the material bag can be conveniently and rapidly fixed.

Description

Technical Field

[0001] The utility model relates to a screening device, in particular to a polyurethane resin discharging screening device, belonging to the technical field of polyurethane resin production. Background Art

[0002] As a polymer material with high strength, tear resistance and wear resistance, polyurethane resin can be used in aviation, railways, construction and sports. It can be used for surface finishing of wooden furniture and metal, thermal insulation of storage tanks, pipelines, cold storage, beer, fermentation tanks and fresh-keeping barrels, thermal insulation and waterproofing of building construction. It can also be used for prefabricated polyurethane sheets, and can be used to manufacture plastic products, wear-resistant synthetic rubber products, synthetic fibers, hard and soft foam plastic products, etc. It can be used for surface finishing of various wooden products, chemical equipment, telecommunications equipment and instruments, and various means of transportation.

[0003] However, when screening the polyurethane resin powder through an ultrasonic vibrating screen, the operator generally sticks the material bag to the discharge port with tape. When the material bag needs to be replaced, tearing the tape may damage the material bag, which may easily cause the collected polyurethane resin powder to spill, which is not conducive to improving the use effect of the vibrating screen. Utility Model Content

[0004] The purpose of the utility model is to provide a polyurethane resin discharging screening device in order to solve the above-mentioned problem. The turntable rotates, so that the screw drives the two clamping plates to slide toward each other in the mounting plate, and then the clamping plates clamp the material bag sleeved on the discharge pipe, thereby facilitating the rapid fixation of the material bag.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a polyurethane resin discharging and screening device comprises a lower hopper, a discharge pipe is fixedly installed on the lower hopper, a fixing mechanism is installed on the lower hopper, the fixing mechanism comprises a mounting plate and a clamping plate, the bottom end of the lower hopper is fixedly connected with the mounting plate, the clamping plate is slidably connected to the mounting plate, the mounting plate is fixedly connected with an abutment plate, the mounting plate is rotatably connected with a screw rod, the screw rod and the clamping plate are threadedly connected, a fixing block is fixedly installed on the screw rod, a turntable is fixedly connected to the fixing block, a main body mechanism is fixed on the lower hopper, and a screening mechanism is provided on the main body mechanism.

[0006] Preferably, the lower hopper is connected to a discharge pipe, and one end of the clamping plate close to the discharge pipe is arranged in an arc surface structure.

[0007] Preferably, the threads at both ends of the screw rod are in opposite directions, and the clamping plate is slidably connected to the abutment plate.

[0008] Preferably, the clamping plate is slidably connected to the lower hopper, and the fixing block is rotatably connected to the mounting plate.

[0009] Preferably, the main structure includes a vibrating table and a first screen frame, the first screen frame is fixedly connected to the lower hopper, the vibrating table is fixedly installed on the bottom end of the first screen frame, the second screen frame is fixedly installed on the top end of the first screen frame, a dust cover is snap-fitted and installed on the second screen frame, a feed pipe is fixedly connected to the dust cover, and both the first screen frame and the second screen frame are provided with a discharge port.

[0010] Preferably, the other lower hopper is fixedly connected to the second screen frame, and the two lower hoppers are connected to the first screen frame and the second screen frame through discharge ports.

[0011] Preferably, the feed pipe is connected to a dust cover, and the dust cover is arranged in an inclined structure.

[0012] Preferably, the screening mechanism comprises a butt ring and a mounting hole, the first screen frame and the second screen frame are both fixedly connected with a butt ring, the butt ring is provided with a mounting hole, a fixing ring is fixedly installed at the mounting hole, and a screen is fixedly connected to the fixing ring.

[0013] Preferably, the second screen frame is connected to the interior of the first screen frame through the screen, and a plurality of mounting holes are arranged in a ring shape with equal distances.

[0014] Preferably, the cross-sectional diameter of the retaining ring is equal to the cross-sectional diameter of the fixing ring, and the cross-sectional inner diameter of the fixing ring is equal to the cross-sectional diameter of the screen.

[0015] The beneficial effect of the utility model is that when the polyurethane resin powder is screened by a vibrating screen, the material bag can be firstly placed on the discharge pipe fixed on the lower hopper, and then the turntable is rotated by hand, a fixed block is installed on the turntable, and a screw is fixed on the fixed block. When the turntable drives the fixed block to rotate, the fixed block can drive the screw to rotate inside the mounting plate. Since the threads at both ends of the screw are in opposite directions, when the screw rotates inside the mounting plate, two clamping plates threadedly connected on the screw can slide inside the mounting plate, and the clamping plates are arranged in an arc-shaped structure. When they conflict with the material bag sleeved on the discharge pipe, the clamping plates can clamp the material bag, thereby facilitating the operator to quickly fix the material bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure of the lower hopper and the discharge pipe of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of the dust cover and the feed pipe of the utility model;

[0019] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A shown;

[0020] Figure 5 This is a schematic diagram of the connection structure of the fixing ring and the screen of the utility model;

[0021] Figure 6 for Figure 5 The enlarged structural diagram of part B is shown.

[0022] In the figure: 1. Main body; 101. Vibrating table; 102. First screen frame; 103. Second screen frame; 104. Dust cover; 105. Feed pipe; 106. Discharge port; 2. Lower hopper; 3. Fixing mechanism; 301. Mounting plate; 302. Clamping plate; 303. Turntable; 304. Fixing block; 305. Screw rod; 306. Butt plate; 4. Discharge pipe; 5. Screening mechanism; 501. Butt ring; 502. Fixing ring; 503. Screen; 504. Mounting hole. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-6 As shown, a polyurethane resin discharging and screening device includes a lower hopper 2, a discharge pipe 4 is fixedly installed on the lower hopper 2, a fixing mechanism 3 is installed on the lower hopper 2, and the fixing mechanism 3 includes a mounting plate 301 and a clamping plate 302. The bottom end of the lower hopper 2 is fixedly connected with the mounting plate 301, the clamping plate 302 is slidably connected to the mounting plate 301, the mounting plate 301 is fixedly connected with a stop plate 306, the mounting plate 301 is rotatably connected with a screw rod 305, the screw rod 305 and the clamping plate 302 are threadedly connected, a fixing block 304 is fixedly installed on the screw rod 305, a turntable 303 is fixedly connected to the fixing block 304, the lower hopper 2 is fixed with a main mechanism 1, and the main mechanism 1 is provided with a screening mechanism 5.

[0025] As a technical optimization solution of the utility model, the lower hopper 2 is connected to the discharge pipe 4, and the end of the clamping plate 302 close to the discharge pipe 4 is arranged in an arc structure. When the clamping plate 302 contacts the material bag, it is convenient for the material bag to collect the powder discharged from the discharge pipe 4.

[0026] As a technical optimization solution of the utility model, the threads at both ends of the screw rod 305 are in opposite directions, and the clamping plate 302 is slidingly connected to the abutment plate 306. The screw rod 305 rotates to drive the clamping plate 302 to slide along the mounting plate 301, thereby facilitating the clamping plate 302 to limit the material bag.

[0027] As a technical optimization solution of the utility model, the clamping plate 302 is slidingly connected to the lower hopper 2, and the fixing block 304 is rotationally connected to the mounting plate 301. When the clamping plate 302 contacts the material bag on the discharge pipe 4, the clamping plate 302 can fix the material bag.

[0028] As a technical optimization scheme of the utility model, the main body mechanism 1 includes a vibration table 101 and a first screen frame 102, the first screen frame 102 is fixedly connected to the lower hopper 2, the bottom end of the first screen frame 102 is fixedly installed with the vibration table 101, the top of the first screen frame 102 is fixedly installed with the second screen frame 103, the second screen frame 103 is snap-fitted with a dust cover 104, the dust cover 104 is fixedly connected with a feed pipe 105, the first screen frame 102 and the second screen frame 103 are both provided with a discharge port 106, the setting of the dust cover 104 can prevent powder from flying around during the screening process, thereby facilitating the improvement of the screening effect.

[0029] As a technical optimization solution of the utility model, the other lower hopper 2 is fixedly connected to the second screen frame 103, and the two lower hoppers 2 are connected to the first screen frame 102 and the second screen frame 103 through the discharge port 106. The screened powder can be discharged to the lower hopper 2 through the discharge port 106, so that the screened powder can be discharged through the discharge pipe 4.

[0030] As a technical optimization solution of the utility model, the feed pipe 105 is connected to the dust cover 104 , and the dust cover 104 is arranged in an inclined structure. The polyurethane resin powder can be discharged into the dust cover 104 through the feed pipe 105 .

[0031] As a technical optimization scheme of the utility model, the screening mechanism 5 includes a butt ring 501 and a mounting hole 504. The first screen frame 102 and the second screen frame 103 are fixedly connected with the butt ring 501. The butt ring 501 is provided with a mounting hole 504. A fixing ring 502 is fixedly installed at the mounting hole 504. The fixing ring 502 is fixedly connected with a screen 503. The fixing ring 502 can be removed from the butt ring 501 to facilitate the removal of the screen 503.

[0032] As a technical optimization solution of the present invention, the second sieve frame 103 is connected to the interior of the first sieve frame 102 through the sieve 503, and the plurality of mounting holes 504 are arranged equidistantly in a ring shape. The mesh sizes of the first sieve frame 102 and the second sieve frame 103 are different, thereby facilitating the sieve 503 to screen the polyurethane resin powder.

[0033] As a technical optimization solution of the utility model, the cross-sectional diameter of the resisting ring 501 is equal to the cross-sectional diameter of the fixing ring 502, the cross-sectional inner diameter of the fixing ring 502 is equal to the cross-sectional diameter of the screen 503, and the fixing ring 502 is in contact with the resisting ring 501, so that the fixing ring 502 can be installed on the top of the resisting ring 501.

[0034] When the utility model is in use, first, the operator can put the material bag sleeve on the discharge pipe 4 fixed on the lower hopper 2, and then rotate the turntable 303 by hand. A fixing block 304 is installed on the turntable 303, and a screw rod 305 is fixed on the fixing block 304. When the turntable 303 drives the fixing block 304 to rotate, the fixing block 304 can drive the screw rod 305 to rotate inside the mounting plate 301. Since the threads at both ends of the screw rod 305 are in opposite directions, when the screw rod 305 rotates inside the mounting plate 301, the two clamping plates 302 threadedly connected on the screw rod 305 can slide inside the mounting plate 301, and the clamping plates 302 are arranged in an arc-shaped structure. When they conflict with the material bag sleeved on the discharge pipe 4, the clamping plates 302 can clamp the material bag, thereby facilitating the operator to quickly fix the material bag. After the material bag is fixed , the operator can discharge the polyurethane resin powder into the second screen frame 103 through the feed pipe 105 on the dust cover 104, and then turn on the control switch of the vibration table 101, and the vibration table 101 drives the first screen frame 102 and the second screen frame 103 to vibrate. Since the first screen frame 102 and the second screen frame 103 are both installed with a screen 503, and the mesh sizes of the two screens 503 are inconsistent, the screen 503 screens the polyurethane resin powder, and the screened powder is discharged to the lower hopper 2 through the discharge port 106, and finally the material can be discharged into the material bag through the discharge pipe 4; when the screen 503 needs to be removed, the fixing ring 502 installed on the screen 503 can be removed from the retaining ring 501 fixed on the first screen frame 102 and the second screen frame 103, and then the screen 503 can be quickly removed when it needs to be cleaned.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A polyurethane resin discharging and screening device, comprising a lower hopper (2), characterized in that: A discharge pipe (4) is fixedly mounted on the lower hopper (2); a fixing mechanism (3) is mounted on the lower hopper (2); the fixing mechanism (3) comprises a mounting plate (301) and a clamping plate (302); the bottom end of the lower hopper (2) is fixedly connected to the mounting plate (301); the clamping plate (302) is slidably connected to the mounting plate (301); a stop plate (306) is fixedly connected to the mounting plate (301); a screw rod (305) is rotatably connected to the mounting plate (301); the screw rod (305) and the clamping plate (302) are threadedly connected; a fixing block (304) is fixedly mounted on the screw rod (305); a rotating disk (303) is fixedly connected to the fixing block (304); a main mechanism (1) is fixed to the lower hopper (2); and a screening mechanism (5) is provided on the main mechanism (1).

2. A polyurethane resin discharging and screening device according to claim 1, characterized in that: The lower hopper (2) is connected to the discharge pipe (4), and one end of the clamping plate (302) close to the discharge pipe (4) is arranged in a curved surface structure.

3. A polyurethane resin discharging and screening device according to claim 1, characterized in that: The threads at both ends of the screw rod (305) are in opposite directions, and the clamping plate (302) is slidably connected to the abutment plate (306).

4. A polyurethane resin discharging and screening device according to claim 1, characterized in that: The clamping plate (302) is slidably connected to the lower hopper (2), and the fixing block (304) is rotationally connected to the mounting plate (301).

5. A polyurethane resin discharging and screening device according to claim 1, characterized in that: The main body structure (1) comprises a vibration table (101) and a first screen frame (102); the first screen frame (102) is fixedly connected to the lower hopper (2); the vibration table (101) is fixedly installed at the bottom end of the first screen frame (102); the second screen frame (103) is fixedly installed at the top end of the first screen frame (102); a dust cover (104) is snap-fitted onto the second screen frame (103); a feed pipe (105) is fixedly connected to the dust cover (104); and both the first screen frame (102) and the second screen frame (103) are provided with a discharge port (106).

6. A polyurethane resin discharging and screening device according to claim 5, characterized in that: The other lower hopper (2) is fixedly connected to the second screen frame (103), and the two lower hoppers (2) are connected to the first screen frame (102) and the second screen frame (103) through a discharge port (106).

7. A polyurethane resin discharging and screening device according to claim 5, characterized in that: The feed pipe (105) is in communication with the dust cover (104), and the dust cover (104) is arranged in an inclined structure.

8. A polyurethane resin discharging and screening device according to claim 5, characterized in that: The screening mechanism (5) comprises a butt ring (501) and a mounting hole (504); the first screen frame (102) and the second screen frame (103) are both fixedly connected with a butt ring (501); the butt ring (501) is provided with a mounting hole (504); a fixing ring (502) is fixedly installed at the mounting hole (504); and a screen (503) is fixedly connected to the fixing ring (502).

9. A polyurethane resin discharging and screening device according to claim 8, characterized in that: The second screen frame (103) is connected to the interior of the first screen frame (102) through the screen (503), and a plurality of mounting holes (504) are arranged in a ring shape at equal intervals.

10. A polyurethane resin discharging and screening device according to claim 9, characterized in that: The cross-sectional diameter of the retaining ring (501) is equal to the cross-sectional diameter of the fixing ring (502), and the cross-sectional inner diameter of the fixing ring (502) is equal to the cross-sectional diameter of the screen (503).

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