Multi-stage screening device for biodegradable modified material processing

Abstract

The utility model relates to the technical field of biodegradable modified material processing, in particular to a multistage screening device for biodegradable modified material processing, which comprises a box body, a first screening mechanism, a collecting mechanism and a second screening mechanism, the upper end of the box body is provided with a feed port, the front end of the box body is connected with a collecting box in a sliding manner, and the collecting box is provided with a feed port. A handle is arranged at the front end of the collecting box, a first screening mechanism is arranged on the inner side of the box body, a collecting mechanism is slidably connected to the side edge of the box body, and a second screening mechanism is slidably arranged at the front end of the box body. A second material screening mechanism is arranged, raw materials with the size smaller than the standard size are screened out through the second material screening mechanism to a collecting box, meanwhile, a first stirring rod and a second stirring rod are driven by a second driving motor to stir the raw materials, and meanwhile, a second convex block is impacted in the stirring process of the second stirring rod, so that a material screening frame is vibrated; therefore, the material screening speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of biodegradable modified material processing, in particular to a multi-stage screening device for biodegradable modified material processing. Background Art

[0002] The multi-stage screening device for biodegradable modified material processing is a screening device used in the processing of biodegradable plastic materials. It usually includes multiple screens with different particle sizes, which are used to screen out materials with different particle sizes to achieve particle size control and classification of the materials. This device can effectively improve the processing efficiency and quality of biodegradable plastics and ensure that the products meet the required particle size and shape. However, the existing multi-stage screening device still has the following problems in actual use:

[0003] Patent No. "CN201711068188.3" discloses a multi-stage screening device. When the device is in use, the first-stage screening device is a screening net vibration screening method commonly used on the market. The mechanical structure of this screening method is simple, and the screening of this screening method is not strict enough, resulting in some of the screened materials being screened out together with the screened materials. We have added a secondary screening device to perform a second screening on the materials screened by the first-stage device. The screening device adopts the structure of a screw conveyor. By adding material guide troughs and material feed ports and secondary screening machines on the upper and lower sides of the pipeline The device is constructed with a small diameter material discharge port, and the material is pushed by the rotating spiral blades to be transported by the screw conveyor. During the mobile transportation process, the small diameter material will be screened out from the small diameter material discharge port on the lower side of the pipe. During use, the device uses the first-stage screening device to perform initial screening on the raw materials, but the raw materials with larger volumes cannot be collected during the screening process, so that the raw materials with larger volumes remain on the surface of the screening net, affecting the screening speed, reducing production efficiency, and having poor practicality. During use, the device cannot screen out the raw materials with smaller volumes, resulting in the mixing of the raw materials with smaller volumes into the transported raw materials, which reduces the production qualification rate. Utility Model Content

[0004] The utility model aims to solve the above problems and proposes a multi-stage screening device for processing biodegradable modified materials, which improves the problems of poor practicality and low efficiency of the existing multi-stage screening device for processing biodegradable modified materials.

[0005] A multi-stage screening device for processing biodegradable modified materials comprises: a box body, a first screening mechanism, a collecting mechanism and a second screening mechanism, wherein a feed port is provided at the upper end of the box body, a collecting box is slidably connected to the front end of the box body, a handle is provided at the front end of the collecting box, the first screening mechanism is provided inside the box body, the collecting mechanism is slidably connected to the side of the box body, and the second screening mechanism is slidably provided at the front end of the box body.

[0006] Preferably, the first screening mechanism comprises a connecting frame and a filter screen, the inner side of the box body is connected to the connecting frame, the connecting frame is arranged in an inclined shape, and the inner side of the connecting frame is connected to the filter screen.

[0007] Preferably, a first driving motor is connected to the rear end of the box body, an output shaft of the first driving motor is connected to a first connecting rod, and two first protrusions are arranged on the side of the first connecting rod.

[0008] Preferably, the collecting mechanism includes a storage box, a magnetic block and a support plate, the storage box is slidably arranged on the side of the box body, two magnetic blocks are symmetrically arranged on the side of the storage box, the inner side of the box body is connected to a support plate, and the support plate is arranged at the lower end of the storage box.

[0009] Preferably, a shell is symmetrically arranged on the inner bottom surface of the storage box, the shell is slidably connected to a first sliding rod, a spring column is arranged inside the shell, the upper end of the spring column is connected to the first sliding rod, the upper end of the first sliding rod is connected to a slide plate, the slide plate is slidably connected to the inner wall of the storage box, and a switch is arranged on the inner bottom surface of the storage box.

[0010] Preferably, the second screening mechanism includes a screening frame, a groove, a second protrusion and a second sliding rod. The screening frame is slidably arranged at the front end of the box body, and two second sliding rods are symmetrically arranged inside the box body. The second sliding rod is slidably connected to the screening frame. A groove is opened on the inner side of the screening frame, and two second protrusions are symmetrically arranged on the inner side of the groove.

[0011] Preferably, a second drive motor is provided on the inner bottom surface of the groove, a protective shell is provided on the outer side of the second drive motor, a second connecting rod is connected to the output shaft of the second drive motor, a first stirring rod is symmetrically provided on the side of the second connecting rod, and a second stirring rod is equidistantly provided on the side of the first stirring rod.

[0012] The beneficial effects of the utility model are:

[0013] 1. A first screening mechanism and a collecting mechanism are provided. During use, qualified raw materials are screened out through the filter, and unqualified raw materials are directly transported to the collecting mechanism, so that the surface of the filter always remains free of materials, thereby improving the screening efficiency and avoiding filter blockage;

[0014] 2. A second screening mechanism is provided, through which raw materials smaller than the standard size are screened out to a collection box, and at the same time, the first stirring rod and the second stirring rod are driven by the second driving motor to stir the raw materials, and at the same time, the second stirring rod hits the second protrusion during the stirring process, causing the screening frame to vibrate, thereby accelerating the screening speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the first screening mechanism of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the collecting mechanism of the utility model;

[0018] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the second screening mechanism of the utility model;

[0020] Figure 6 For the utility model Figure 5 Enlarged structural diagram at B in the middle.

[0021] In the figure: 1. box body; 2. feed inlet; 3. collection box; 4. handle; 5. first screening mechanism; 51. connecting frame; 52. filter; 53. first drive motor; 54. first protrusion; 55. first connecting rod; 6. collecting mechanism; 61. storage box; 62. magnet; 63. shell; 64. spring column; 65. first slide bar; 66. switch; 67. slide plate; 68. support plate; 7. second screening mechanism; 71. screening frame; 72. groove; 73. second protrusion; 74. second drive motor; 75. protective shell; 76. second connecting rod; 77. first stirring rod; 78. second stirring rod; 79. second slide bar. DETAILED DESCRIPTION

[0022] 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.

[0023] When implementing: Figure 1-6As shown, a multi-stage screening device for processing biodegradable modified materials comprises: a box body 1, a first screening mechanism 5, a collecting mechanism 6 and a second screening mechanism 7. A feed inlet 2 is provided at the upper end of the box body 1, a collecting box 3 is slidably connected to the front end of the box body 1, a handle 4 is provided at the front end of the collecting box 3, a first screening mechanism 5 is provided on the inner side of the box body 1, a collecting mechanism 6 is slidably connected to the side of the box body 1, and a second screening mechanism 7 is slidably provided at the front end of the box body 1. When the device is in use, the raw materials to be screened are first added through the feed inlet 2, and the first screening mechanism 5 is started at the same time. The raw materials of appropriate size are screened out through the first screening mechanism 5, and the larger raw materials are transported to the inside of the collecting mechanism 6. The raw materials passing through the first screening mechanism 5 arrive at the inside of the second screening mechanism 7 for secondary screening, and the raw materials with a size smaller than the standard size are screened out, so that the screened raw materials meet the needs and the productivity is improved.

[0024] The first screening mechanism 5 includes a connecting frame 51 and a filter screen 52. The connecting frame 51 is connected to the inner side of the box body 1. The connecting frame 51 is arranged to be inclined. The filter screen 52 is connected to the inner side of the connecting frame 51. When the device is in use, the raw materials reach the surface of the filter screen 52 through the feed inlet 2, and the qualified raw materials are screened out through the filter screen 52.

[0025] A first driving motor 53 is connected to the rear end of the box body 1, and the output shaft of the first driving motor 53 is connected to a first connecting rod 55. Two first protrusions 54 are arranged on the side of the first connecting rod 55. When the device is in use, the first driving motor 53 is started to drive the first protrusion 54 to rotate. The first protrusion 54 hits the connecting frame 51 during the rotation process, thereby improving the screening efficiency.

[0026] The collecting mechanism 6 includes a storage box 61, a magnetic block 62 and a support plate 68. The storage box 61 is slidably arranged on the side of the box body 1. Two magnetic blocks 62 are symmetrically arranged on the side of the storage box 61. A support plate 68 is connected to the inner side of the box body 1. The support plate 68 is arranged at the lower end of the storage box 61. When the device is in use, larger raw materials that have not been screened by the first screening mechanism 5 fall into the storage box 61. When the raw materials inside the storage box 61 are full, the weight of the raw materials squeezes the slide plate 67, and the slide plate 67 slides inside the storage box 61.

[0027] A shell 63 is symmetrically arranged on the bottom surface of the interior of the material storage box 61, and a first slide bar 65 is slidably connected to the shell 63. A spring column 64 is arranged inside the shell 63, and the upper end of the spring column 64 is connected to the first slide bar 65, and the upper end of the first slide bar 65 is connected to a slide plate 67. The slide plate 67 is slidably connected to the inner wall of the material storage box 61, and a switch 66 is arranged on the bottom surface of the interior of the material storage box 61. When the device is in use, the slide plate 67 squeezes the first slide bar 65 and the spring column 64 during the sliding process. When the slide plate 67 contacts the switch 66, the switch 66 is triggered to sound an alarm, reminding the operator to pour out unqualified raw materials. At the same time, the magnetic block 62 is arranged to improve the stability of the connection between the material storage box 61 and the box body 1, and at the same time, the material storage box 61 is auxiliary supported by the support plate 68.

[0028] The second screening mechanism 7 includes a screening frame 71, a groove 72, a second protrusion 73 and a second slide bar 79. The screening frame 71 is slidably arranged at the front end of the box body 1, and two second slide bars 79 are symmetrically arranged inside the box body 1. The second slide bar 79 is slidably connected to the screening frame 71. A groove 72 is opened on the inner side of the screening frame 71, and two second protrusions 73 are symmetrically arranged on the inner side of the groove 72. When the device is in use, the raw materials passing through the first screening mechanism 5 fall into the inner side of the groove 72 inside the screening frame 71.

[0029] A second drive motor 74 is provided on the inner bottom surface of the groove 72, a protective shell 75 is provided on the outer side of the second drive motor 74, the output shaft of the second drive motor 74 is connected to the second connecting rod 76, the side of the second connecting rod 76 is symmetrically provided with a first stirring rod 77, and the side of the first stirring rod 77 is equidistantly provided with a second stirring rod 78. When the device is in use, the second drive motor 74 is started to drive the second connecting rod 76 to rotate, and the second connecting rod 76 drives the first stirring rod 77 and the second stirring rod 78 to stir the raw materials. At the same time, the second stirring rod 78 hits the second protrusion 73 during the stirring process, so that the screening frame 71 vibrates, and at the same time, the raw materials with a size smaller than the standard size are screened out into the collection box 3.

[0030] When the utility model is used, the raw materials to be screened are first added through the feed port 2, and the raw materials reach the surface of the filter screen 52 through the feed port 2. At this time, the qualified raw materials are screened out through the filter screen 52, and at the same time, the first driving motor 53 is started to drive the first protrusion 54 to rotate. The first protrusion 54 hits the connecting frame 51 during the rotation process, thereby improving the screening efficiency;

[0031] The larger raw materials that have not been screened by the first screening mechanism 5 fall into the storage box 61. When the storage box 61 is full of raw materials, the slide plate 67 is squeezed by the weight of the raw materials, and the slide plate 67 slides inside the storage box 61. During the sliding process, the slide plate 67 squeezes the first slide bar 65 and the spring column 64. When the slide plate 67 contacts the switch 66, the switch 66 is triggered to sound an alarm, reminding the operator to pour out the unqualified raw materials. At the same time, the magnetic block 62 is provided to improve the stability of the connection between the storage box 61 and the box body 1, and the storage box 61 is auxiliary supported by the support plate 68.

[0032] The raw materials passing through the first screening mechanism 5 fall into the inner side of the groove 72 inside the screening frame 71. At this time, the second driving motor 74 is started to drive the second connecting rod 76 to rotate. The second connecting rod 76 drives the first stirring rod 77 and the second stirring rod 78 to stir the raw materials. At the same time, the second stirring rod 78 hits the second protrusion 73 during the stirring process, so that the screening frame 71 vibrates, and the raw materials with a size smaller than the standard size are screened out into the collection box 3.

[0033] 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 multi-stage screening device for processing biodegradable modified materials, characterized in that: include: A box body (1), a first screening mechanism (5), a collecting mechanism (6) and a second screening mechanism (7); a feed inlet (2) is provided at the upper end of the box body (1); a collecting box (3) is slidably connected to the front end of the box body (1); a handle (4) is provided at the front end of the collecting box (3); a first screening mechanism (5) is provided inside the box body (1); a collecting mechanism (6) is slidably connected to the side of the box body (1); and a second screening mechanism (7) is slidably provided at the front end of the box body (1).

2. The multi-stage screening device for processing biodegradable modified materials according to claim 1, characterized in that: The first screening mechanism (5) comprises a connecting frame (51) and a filter screen (52); the inner side of the box body (1) is connected to the connecting frame (51); the connecting frame (51) is arranged in an inclined shape; and the inner side of the connecting frame (51) is connected to the filter screen (52).

3. The multi-stage screening device for processing biodegradable modified materials according to claim 1, characterized in that: The rear end of the box body (1) is connected to a first drive motor (53), the output shaft of the first drive motor (53) is connected to a first connecting rod (55), and two first protrusions (54) are arranged on the side of the first connecting rod (55).

4. The multi-stage screening device for processing biodegradable modified materials according to claim 1, characterized in that: The collecting mechanism (6) comprises a material storage box (61), a magnetic block (62) and a support plate (68); the material storage box (61) is slidably arranged on the side of the box body (1); two magnetic blocks (62) are symmetrically arranged on the side of the material storage box (61); the inner side of the box body (1) is connected to a support plate (68); and the support plate (68) is arranged at the lower end of the material storage box (61).

5. The multi-stage screening device for processing biodegradable modified materials according to claim 4, characterized in that: A shell (63) is symmetrically arranged on the bottom surface of the storage box (61), and the shell (63) is slidably connected to a first sliding rod (65). A spring column (64) is arranged inside the shell (63), and the upper end of the spring column (64) is connected to the first sliding rod (65). The upper end of the first sliding rod (65) is connected to a slide plate (67), and the slide plate (67) is slidably connected to the inner wall of the storage box (61). A switch (66) is arranged on the bottom surface of the storage box (61).

6. The multi-stage screening device for processing biodegradable modified materials according to claim 1, characterized in that: The second screening mechanism (7) comprises a screening frame (71), a groove (72), a second protrusion (73) and a second sliding rod (79); the screening frame (71) is slidably arranged at the front end of the box body (1); two second sliding rods (79) are symmetrically arranged inside the box body (1); the second sliding rod (79) is slidably connected to the screening frame (71); a groove (72) is provided on the inner side of the screening frame (71); and two second protrusions (73) are symmetrically arranged on the inner side of the groove (72).

7. The multi-stage screening device for processing biodegradable modified materials according to claim 6, characterized in that: A second driving motor (74) is arranged on the inner bottom surface of the groove (72), a protective shell (75) is arranged on the outer side of the second driving motor (74), an output shaft of the second driving motor (74) is connected to a second connecting rod (76), a first stirring rod (77) is symmetrically arranged on the side of the second connecting rod (76), and a second stirring rod (78) is equidistantly arranged on the side of the first stirring rod (77).

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