Screening device for polyurethane processing

Abstract

The utility model relates to the technical field of polyurethane processing, in particular to a screening device for polyurethane processing, which comprises a hopper, the hopper is fixedly connected with the top of a box body, a screening plate is slidably connected in the box body, the screening plate is divided into a screening plate A and a screening plate B, first screening holes are formed in the surface of the screening plate A, and second screening holes are formed in the surface of the screening plate B; second sieve holes are formed in the surface of the sieve plate B; a condenser pipe is arranged in the sieve plate A, the two ends of the sieve plate are connected with the limiting blocks in an inserted mode correspondingly, an inlet pipe opening and an outlet pipe opening of the condenser pipe are connected with the exterior of the water tank correspondingly, a supporting frame is welded to the bottom of the box body, and one end of the sieve plate is connected with the interior of the swing motor in an inserted mode. Limiting blocks prevent the sieve plates from being disengaged when the sieve plates are driven by the swing motor to move leftwards and rightwards for screening, condensation pipes arranged in the sieve plates A circulate water to form a cooling device, the materials can be cooled, and qualified materials can be screened out through different hole diameters of the two sieve plates.

Description

Technical Field

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

[0002] The full name of polyurethane is polyurethane, which is a high molecular compound divided into two categories: polyester and polyether. It can be made into polyurethane plastics, polyurethane fibers, polyurethane rubber and elastomers. The elastomeric properties of polyurethane are between those of plastics and rubber. It is oil-resistant, wear-resistant, low-temperature-resistant, aging-resistant, high in hardness and elastic. It is mainly used in the shoemaking industry and the medical industry. It can also be used to make adhesives, coatings, synthetic leather, etc.

[0003] The screening device is an operating equipment that selects certain materials with specific requirements according to a predetermined goal, and discharges the screened materials from the outlet in the process, thus realizing the sorting of different materials. In the chemical process of polyurethane, it is necessary to use a screening device to screen out particles that meet the specifications, so as to meet the requirements of the company's product production. Generally, vibration is used for screening.

[0004] In the process of realizing the utility model, the inventors found that the prior art had the following problems: 1. In the process of polyurethane processing, the screening device generally adopts vibration to screen. With long-term use, the parts are easily damaged, which reduces the service life; 2. The previous vibration screening will generate heat during its vibration sorting process, which makes the surface temperature of the material on the screen plate increase, and there is no corresponding device to effectively dissipate the heat. Utility Model Content

[0005] The purpose of the utility model is to provide a screening device for polyurethane processing, so as to solve the problem that the vibrating screening device mentioned in the above background technology is prone to damage after long-term use, which reduces the service life, and generates heat during its vibration sorting process, which increases the surface temperature of the material and cannot effectively dissipate heat. In order to achieve the above purpose, the utility model provides the following technical solutions: a screening device for polyurethane processing, including a hopper, the hopper is fixedly connected to the top of the box, and a sieve plate is slidably connected to the inside of the box, and the sieve plate is divided into sieve plate A and sieve plate B, the surface of the sieve plate A is provided with a first sieve hole, and the surface of the sieve plate B is provided with a second sieve hole;

[0006] A condenser is provided inside the sieve plate A, and both ends of the sieve plate are respectively plugged into the limit blocks, the inlet and outlet pipes of the condenser are respectively connected to the outside of the water tank, a support frame is welded to the bottom of the box body, one end of the sieve plate is plugged into the inside of the swing motor, and a discharge port is welded to the bottom of the box body.

[0007] Further preferably, the box body, the hopper and the discharge port all form a welding structure.

[0008] Further preferably, both ends of the sieve plate are inserted into the limit blocks, and a sliding connection is formed between the sieve plate and the box body.

[0009] Further preferably, the mesh diameter of the first mesh is larger than the mesh diameter of the second mesh.

[0010] Further preferably, the condenser is connected to an external water tank to form a cooling circuit.

[0011] Further preferably, a plug-in structure is formed between the swing motor and the screen plate.

[0012] Further preferably, a supporting and fixing structure is formed between the support frame and the box body.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, the sieve plate and the box body are movably connected, and two sieve plates are inserted into the interior of the swing motor and driven to move left and right through the connecting rod of the swing motor to perform circular motion for screening. The limit blocks control the two ends of the sieve plates within a spatial range to prevent them from being out of position during the sliding process.

[0015] In the utility model, the first sieve hole and the second sieve hole can effectively sort out materials that meet the specification requirements due to the different apertures of the sieve holes. The condenser provided in the sieve plate draws cold water from the water tank through the liquid guide port and introduces it into the pipeline for circulation and finally guides it back to the water tank from the liquid outlet, thus forming a cooling device. The box body is supported by a support frame and fixed to the ground to increase its stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the full cross-section structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 This is a side view of the structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal parts structure of the utility model.

[0020] In the figure: 1. hopper; 2. box body; 3. swing motor; 4. limit block; 5. condenser; 6. water tank; 7. support frame; 8. sieve plate; 801. sieve plate A; 802. sieve plate B; 803. first sieve hole; 804. second sieve hole; 9. discharge port. 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 technical personnel in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 4 The utility model provides a technical solution: a screening device for polyurethane processing, comprising a hopper 1, the hopper 1 is fixedly connected to the top of a box body 2, a sieve plate 8 is slidably connected inside the box body 2, the sieve plate 8 is divided into a sieve plate A801 ​​and a sieve plate B802, a first sieve hole 803 is provided on the surface of the sieve plate A801, and a second sieve hole 804 is provided on the surface of the sieve plate B802;

[0023] A condensation tube 5 is provided inside the sieve plate A801, and both ends of the sieve plate 8 are respectively plugged into the limit blocks 4. The inlet and outlet pipes of the condensation tube 5 are respectively connected to the outside of the water tank 6. A support frame 7 is welded to the bottom of the box body 2. One end of the sieve plate 8 is plugged into the inside of the swing motor 3, and a discharge port 9 is welded to the bottom of the box body 2.

[0024] In this embodiment, Figure 1 As shown, the box body 2, the hopper 1 and the discharge port 9 all form a welding structure.

[0025] In this embodiment, Figure 1 As shown, the two ends of the sieve plate 8 are inserted into the limit blocks 4, and a sliding connection is formed between the sieve plate 8 and the box body 2; the sieve plate 8 and the box body 2 are movably connected, wherein both sieve plates can move back and forth to the left and right, and the limit blocks 4 control the two ends of the sieve plate 8 within a spatial range to prevent the sieve plate 8 from being out of position during the sliding process.

[0026] In this embodiment, Figure 4 As shown, the diameter of the first sieve hole 803 is greater than the diameter of the second sieve hole 804; the first sieve hole 803 and the second sieve hole 804 can effectively sort out materials that meet specification requirements due to the different sieve hole diameters.

[0027] In this embodiment, Figure 1 As shown, the condenser 5 is connected to the water tank 6 externally to form a cooling circuit; the liquid guide port of the condenser 5 can absorb cold water from the water tank 6, introduce it into the pipeline for circulation and finally guide it back to the water tank 6 from the liquid outlet, and so on, forming a cooling device.

[0028] In this embodiment, Figure 2 As shown, a plug-in structure is formed between the swing motor 3 and the screen plate 8; the connecting rod of the swing motor 3 performs a circular motion, thereby driving the screen plate 8 inserted therein to move left and right for screening.

[0029] In this embodiment, Figure 1 As shown, a supporting and fixing structure is formed between the support frame 7 and the box body 2; the box body 2 is supported and fixed to the ground by the support frame 7 to increase its stability.

[0030] The use method and advantages of the utility model: When the screening device for polyurethane processing is used, the working process is as follows:

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, first, the polyurethane material to be processed and screened is put into the box body 2 from the hopper 1, and the material falls on the screen plate A801. The connecting rod of the swing motor 3 makes a circular motion and then drives the screen plate 8 to move back and forth to the left and right. The limit block 4 ensures that the screen plate 8 will not be out of position, so as to carry out screening. The condenser 5 provided inside the screen plate A801 ​​introduces cold water drawn from the water tank 6 to its plate surface and circulates it for discharge, forming a cooling device to effectively dissipate the heat of the material in the screening process. After passing through the larger first sieve hole 803 on the screen plate A801, the screened material falls on the screen plate B802 again. The aperture of the second sieve hole 804 is smaller. Under the action of the swing motor 3, more detailed screening is carried out. Finally, the screened polyurethane material is concentrated to the discharge port 9 for discharge.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A screening device for polyurethane processing, comprising a hopper (1), characterized in that: The hopper (1) is fixedly connected to the top of the box (2); a sieve plate (8) is slidably connected to the interior of the box (2); the sieve plate (8) is divided into a sieve plate A (801) and a sieve plate B (802); a first sieve hole (803) is provided on the surface of the sieve plate A (801); and a second sieve hole (804) is provided on the surface of the sieve plate B (802); A condenser (5) is provided inside the sieve plate A (801), and the two ends of the sieve plate (8) are respectively plugged into the limit blocks (4), and the inlet and outlet pipes of the condenser (5) are respectively connected to the outside of the water tank (6), and a support frame (7) is welded to the bottom of the box body (2), one end of the sieve plate (8) is plugged into the inside of the swing motor (3), and a discharge port (9) is welded to the bottom of the box body (2).

2. A polyurethane processing screening device according to claim 1, characterized in that: The box body (2), the hopper (1) and the discharge port (9) all form a welding structure.

3. A polyurethane processing screening device according to claim 1, characterized in that: The two ends of the sieve plate (8) are inserted into the limiting blocks (4), and a sliding connection is formed between the sieve plate (8) and the box body (2).

4. A polyurethane processing screening device according to claim 1, characterized in that: The diameter of the first sieve hole (803) is greater than the diameter of the second sieve hole (804).

5. A polyurethane processing screening device according to claim 1, characterized in that: The condenser (5) is connected to a water tank (6) externally to form a cooling circuit.

6. A polyurethane processing screening device according to claim 1, characterized in that: A plug-in structure is formed between the swing motor (3) and the screen plate (8).

7. A polyurethane processing screening device according to claim 1, characterized in that: The support frame (7) and the box body (2) form a supporting and fixing structure.

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