A plastic powder grading and screening equipment

Abstract

The utility model discloses a plastic powder grading and screening device, comprising: a screen frame, the top of the screen frame is open, and the interior is hollow to form a receiving cavity; a screen cover, the screen cover is arranged at the top opening of the screen frame; a connecting component, the connecting component is used to lock the screen frame and the screen cover, or to separate the screen frame and the screen cover; a net support, the net support is arranged in the receiving cavity of the screen frame and is fixedly connected to the inner peripheral wall of the screen frame; a screen pressing frame, the screen pressing frame is arranged in the receiving cavity of the screen frame and is detachably connected to the screen frame; a wire mesh, the wire mesh is provided with a plurality of screen holes, and the wire mesh is clamped between the screen pressing frame and the net support. The screen frame and the screen cover are separated by the connecting component, and the wire mesh is conveniently separated by disassembling the first fastener and the second fastener, and the operation is simple and convenient, and the cleaning and maintenance are simple.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic powder processing, in particular to a plastic powder grading and screening device. Background Art

[0002] In order to ensure that the particle size of plastic powder is uniform to meet the needs of subsequent processing and manufacturing, the plastic powder needs to be graded and screened. In the existing plastic powder grading and screening equipment, the screen is easily clogged after long-term use, resulting in low production efficiency, and the fixing method of the screen is complicated. Some adopt an integrated design, which makes cleaning or replacing the screen time-consuming and labor-intensive. Based on this, a plastic powder grading and screening equipment is designed. Utility Model Content

[0003] In order to overcome at least one defect of the above-mentioned prior art, the utility model provides a plastic powder grading and screening device. The screen frame and the screen cover are separated by a connecting assembly, and the wire mesh is easily separated by disassembling the first fastener and the second fastener. The operation is simple and convenient, and the cleaning and maintenance are simple.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] A plastic powder grading and screening device comprises: a sieve frame, which is open at the top and hollow inside to form a accommodating cavity; a sieve cover, which is arranged at the top opening of the sieve frame; a connecting component, which is used to lock the sieve frame and the sieve cover, or to separate the sieve frame and the sieve cover; a mesh support, which is arranged in the accommodating cavity of the sieve frame and fixedly connected to the inner peripheral wall of the sieve frame; a mesh pressing frame, which is arranged in the accommodating cavity of the sieve frame and is detachably connected to the sieve frame; a wire mesh, which is provided with a plurality of sieve holes and is clamped between the mesh pressing frame and the mesh support.

[0006] By adopting the above scheme, the screen frame and the screen cover are separated by the connecting assembly, and the wire mesh is conveniently separated by disassembling the first fastener and the second fastener, which is simple and convenient to operate and easy to clean and maintain.

[0007] Furthermore, a screen frame fixing bracket is assembled on the outer surfaces of the two opposite sides of the screen frame, a base is arranged below the screen frame fixing bracket, and a spring is arranged between the screen frame fixing bracket and the base.

[0008] By adopting the above solution, the support effect is achieved through the base, and the screen frame is easily vibrated through the spring.

[0009] Furthermore, a motor fixing plate is arranged at the bottom of the screen frame, and a vibration motor is mounted on the motor fixing plate.

[0010] By adopting the above-mentioned solution, the vibration effect of the screen frame is achieved by vibrating the motor and matching the spring.

[0011] Furthermore, the connecting assembly includes: a locking ear, which is mounted on the outer surfaces of the opposite sides of the screen cover; a locking and fixing box seat, which is mounted on the outer surfaces of the opposite sides of the screen frame; a locking support, which is mounted on the outer surface of the locking and fixing box seat; a locking wrench, which is rotatably connected to the locking support; a locking shaft, which is passed through the locking wrench and rotates relative to the locking support; a locking pull rod, which is passed through the locking shaft and is clamped and fixed to the locking ear.

[0012] By adopting the above solution, the locking effect is achieved by moving the locking lever to the top and the locking ear is clamped, and the locking wrench is moved to the bottom.

[0013] Further, the locking lever is in a U-shaped shape, and one end of the locking wrench is connected to the locking wrench.

[0014] By adopting the above solution, it is convenient to connect with the locking hook ear by setting up a U-shaped locking lever, and easy to grasp through the locking wrench.

[0015] Furthermore, a first avoidance hole is opened at corresponding positions of the net support and the screen pressing frame, a first fastener is passed through the first avoidance hole, and a second avoidance hole is opened at corresponding positions of the screen pressing frame and the screen frame, a second fastener is passed through the second avoidance hole.

[0016] By adopting the above-mentioned solution, the fixing effect of the pressing frame is achieved through the first fastener and the second fastener. When it is necessary to disassemble, the first fastener and the second fastener can be separated, which is simple and quick to operate.

[0017] Further, lifting handles are provided on both sides of the pressing frame.

[0018] By adopting the above scheme, the pressing frame is easily removed by lifting the handle.

[0019] Furthermore, the top of the sieve cover is provided with an inlet, the bottom of the sieve frame is provided with a first outlet for receiving the plastic powder passing through the sieve holes, and the bottom of the sieve frame is provided with a second outlet for receiving the plastic powder not passing through the sieve holes.

[0020] By adopting the above-mentioned solution, plastic powder is conveniently discharged through the inlet port, and plastic powder of different particle sizes is collected through the arrangement of the first discharge port and the second discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of a split three-dimensional structure of an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the screen pressing frame structure of an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of a connection assembly according to an embodiment of the utility model;

[0024] Among them, the meanings of the accompanying drawings are as follows: 1. screen frame; 11. screen frame fixing bracket; 12. base; 13. spring; 14. motor fixing plate; 15. vibration motor; 2. screen cover; 3. connecting assembly; 31. locking ear; 32. locking fixing box seat; 33. locking support; 34. locking wrench; 341. locking wrench set; 35. locking shaft; 36. locking pull rod; 4. net support; 5. net pressing frame; 6. wire mesh; 61. sieve hole; 71. first fastener; 72. second fastener; 81. feed port; 82. first discharge port; 83. second discharge port. DETAILED DESCRIPTION

[0025] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] In order to facilitate the understanding of the embodiments of the present utility model, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present utility model.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] See also Figure 1-Figure 3The utility model discloses a plastic powder grading and screening device: comprising a screen frame 1, a screen cover 2, a connecting component 3, a net support 4, a screen pressing frame 5 and a wire mesh 6. The screen frame 1 is open at the top and hollow inside to form a receiving cavity. The screen cover 2 is arranged at the top opening of the screen frame 1. The connecting component 3 is used to lock the screen frame 1 and the screen cover 2 or to separate the screen frame 1 and the screen cover 2. The net support 4 is arranged in the receiving cavity of the screen frame 1. The net support 4 is fixed to the inner peripheral wall of the screen frame 1. Connection, specifically, the net support 4 is fixedly connected to the three side walls of the screen, leaving a gap between the other side wall, the screen pressing frame 5 is arranged in the accommodating cavity of the screen, and is detachably connected to the screen frame 1, the wire mesh 6 is provided with a plurality of screen holes 61, the wire mesh 6 is clamped between the screen pressing frame 5 and the net support 4, the screen frame 1 and the screen cover 2 can be disassembled through the connecting component 3, and the wire mesh 6 can be conveniently taken out for maintenance and cleaning through the detachable connection between the screen pressing frame 5 and the screen frame 1.

[0030] In this embodiment, an inlet 81 is provided at the top of the sieve cover 2, and a first outlet 82 is provided at the bottom of the sieve frame 1 for receiving the plastic powder passing through the sieve hole 61. A second outlet 83 is provided at the bottom of the sieve frame 1 for receiving the plastic powder that does not pass through the sieve hole 61. The plastic powder can be added conveniently through the inlet 81, and plastic powders of different particle sizes can be collected by setting the first outlet 82 and the second outlet 83.

[0031] Specifically, the outer surfaces of the two opposite sides of the screen frame 1 are equipped with screen frame fixing brackets 11. In this embodiment, the number of the screen frame fixing brackets 11 is four and they are symmetrically distributed. A base 12 is provided below the screen frame fixing bracket 11, and a spring 13 is provided between the screen frame fixing bracket 11 and the base 12. The support effect is achieved through the base 12, and the screen frame 1 is easily vibrated through the spring 13. A motor fixing plate 14 is provided at the bottom of the screen frame 1, and a vibration motor 15 is installed on the motor fixing plate 14. The vibration effect of the screen frame 1 is achieved through the vibration motor 15 and the spring 13.

[0032] More specifically, the base 12 includes four support rods, and the four support rods are connected by connecting rods, and the springs 13 are respectively arranged on the tops of the four support rods.

[0033] Specifically, the connecting assembly 3 includes a locking ear 31, a locking fixed box seat 32, a locking support 33, a locking wrench 34, a locking shaft 35 and a locking rod 36. The locking ear 31 is mounted on the outer surfaces of the opposite sides of the sieve cover 2, the locking fixed box seat 32 is mounted on the outer surfaces of the opposite sides of the sieve frame 1, the locking support 33 is mounted on the outer surface of the locking fixed box seat 32, the locking wrench 34 is rotatably connected to the locking support 33, the locking shaft 35 is penetrated by the locking wrench 34, and the locking shaft 35 rotates relative to the locking support 33, the locking rod 36 is penetrated by the locking shaft 35, the locking rod 36 is clamped and fixed to the locking ear 31, and the locking effect is achieved by moving the locking rod 36 to the top to clamp the locking ear 31, and by moving the locking wrench 34 to the bottom.

[0034] More specifically, the locking rod 36 is U-shaped, and one end of the locking wrench 34 is sleeved with the locking wrench cover 341. The U-shaped locking rod 36 is conveniently connected to the locking ear 31, and the locking wrench cover 341 is convenient for gripping.

[0035] Wherein, lifting handles are installed on both sides of the screen pressing frame 5, and the screen pressing frame 5 can be easily removed by pulling the lifting handles.

[0036] The first avoidance hole is provided at the corresponding position of the net support 4 and the screen pressing frame 5, and the first avoidance hole is provided with a first fastener 71, and the second avoidance hole is provided with a second avoidance hole at the corresponding position of the screen pressing frame 5 and the screen frame 1, and the second avoidance hole is provided with a second fastener 72. The first fastener 71 and the second fastener 72 are used to fix the screen pressing frame 5. When disassembly is required, the first fastener 71 and the second fastener 72 can be separated, and the operation is simple and fast. The first avoidance hole is provided with an internal thread, and the first fastener 71 is a screw, and the external thread of the screw is spirally connected with the internal thread of the first avoidance hole to achieve a locking effect; the second fastener 72 is a bolt and a nut spirally connected with the bolt.

[0037] The working principle and steps of the utility model are as follows: when in use, plastic powder is put in from the feed port 81, and the plastic powder falls onto the steel wire mesh 6. Through the vibration of the vibration motor 15, the plastic powder with a particle size smaller than the sieve hole 61 will pass through the sieve hole 61 and be discharged from the first discharge port 82, and the plastic powder with a particle size larger than the sieve hole 61 will be discharged from the second discharge port 83. When disassembly is required, hold the locking wrench sleeve 341 and move it upward, then disassemble the locking rod 36 and the locking hanging ear 31, separate the sieve cover 2 from the sieve frame 1, separate the first fastener 71 from the first avoidance hole by rotating the first fastener 71, and then separate the second fastener 72 from the second avoidance hole, remove the screen pressing frame 5 by pulling the handle, and then remove the steel wire mesh 6.

[0038] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A plastic powder grading and screening device, characterized in that: include: A screen frame, wherein the top of the screen frame is open and the interior is hollow to form a receiving cavity; A screen cover, the screen cover is arranged at the top opening of the screen frame; A connecting assembly, the connecting assembly is used to lock the screen frame and the screen cover, or to separate the screen frame and the screen cover; A net support, which is arranged in the accommodating cavity of the screen frame and is fixedly connected to the inner peripheral wall of the screen frame; A screen pressing frame, which is disposed in the accommodating cavity of the screen frame and is detachably connected to the screen frame; The wire mesh is provided with a plurality of sieve holes and is sandwiched between the mesh pressing frame and the mesh support.

2. A plastic powder grading and screening device according to claim 1, characterized in that: The outer surfaces of the two opposite sides of the screen frame are equipped with screen frame fixing brackets, a base is arranged below the screen frame fixing bracket, and a spring is arranged between the screen frame fixing bracket and the base.

3. A plastic powder grading and screening device according to claim 2, characterized in that: A motor fixing plate is arranged at the bottom of the screen frame, and a vibration motor is mounted on the motor fixing plate.

4. The plastic powder grading and screening equipment according to claim 3, characterized in that: The connection component comprises: Locking ears, the locking ears are mounted on the outer surfaces of the sieve cover on two opposite sides; A locking and fixing box seat, wherein the locking and fixing box seat is mounted on the outer surfaces of the two opposite sides of the screen frame; A locking support, the locking support being mounted on the outer surface of the locking and fixing box seat; A locking wrench, the locking wrench being rotatably connected to the locking support; A locking shaft, which passes through the locking wrench and rotates relative to the locking support; A locking pull rod is passed through the locking shaft and is fixedly connected to the locking ear.

5. The plastic powder grading and screening equipment according to claim 4, characterized in that: The locking pull rod is U-shaped, and one end of the locking wrench is sleeved with a locking wrench cover.

6. The plastic powder grading and screening equipment according to claim 5, characterized in that: A first avoidance hole is formed at corresponding positions of the net support and the screen pressing frame, a first fastener is inserted into the first avoidance hole, and a second avoidance hole is formed at corresponding positions of the screen pressing frame and the screen frame, a second fastener is inserted into the second avoidance hole.

7. The plastic powder grading and screening equipment according to claim 6, characterized in that: Both sides of the screen pressing frame are equipped with lifting handles.

8. The plastic powder grading and screening equipment according to claim 7, characterized in that: The top of the sieve cover is provided with an inlet, the bottom of the sieve frame is provided with a first outlet for receiving the plastic powder passing through the sieve holes, and the bottom of the sieve frame is provided with a second outlet for receiving the plastic powder not passing through the sieve holes.

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