Suspended composite sieve

Abstract

The utility model discloses a suspended composite screen which comprises a hanging bracket, four hanging shafts are fixedly mounted on the hanging bracket, mounting supports are fixed at the lower ends of the four hanging shafts, a screen box is fixed among the four mounting supports, the screen box is obliquely arranged, two groups of screen meshes are arranged in the screen box, and a vibration exciter for driving the screen box to swing and slide is arranged on the screen box. An opening is formed in the inclined upper end of the screen box, an openable door plate is arranged on the opening, a feeding channel capable of guiding raw materials into the upper surfaces of the two sets of screen nets is arranged on the openable door plate, a partition plate is arranged in the middle of the feeding channel, the interior of the feeding channel is divided into two channels through the partition plate, and a switching valve plate assembly is arranged at an inner inlet of the feeding channel. The suspended composite screen is simple in structure, easy and convenient to operate, capable of conducting multiple times of screening and double-speed screening, capable of conducting screening through a set of screening nets and more flexible to use.

Description

Technical Field

[0001] The utility model relates to the technical field of composite screens, in particular to a suspended composite screen. Background Art

[0002] The square swing screen has the advantages of high screening accuracy and large output. It can effectively simulate the motion trajectory of manual screening, thereby achieving the purpose of efficient screening. However, the existing square screen can only screen through one set of screens and is not flexible to use. For example, the patent authorization announcement number CN212069508U, although it is a large composite square screen, is not flexible to use and can only screen one type of raw material. Moreover, only one set of screens can be used for screening, and the screening rate is low. Moreover, the existing composite screen needs to replace screens of different apertures when screening different raw materials. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a suspended composite screen with a simple structure and easy operation. It can not only perform multiple screenings, but also perform double-speed screening, and can use a group of screening meshes for screening, which is more flexible to use and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a suspended composite screen, comprising a hanger, wherein four hanging shafts are fixed on the hanger, and the lower ends of the four hanging shafts are fixed with mounting supports, and a screen box is fixed between the four mounting supports, the screen box is inclined, and two groups of screens are arranged inside the screen box, and an exciter for driving it to swing and slide is provided on the screen box, and an opening is provided at the inclined upper end of the screen box, and an openable door panel is provided on the opening, and a feed channel for introducing raw materials into the upper surfaces of the two groups of screens is provided on the openable door panel, a partition is provided in the middle of the feed channel, and the feed channel is divided into two channels by the partition, and a switching valve plate assembly is provided at the internal inlet of the feed channel, an openable guide plate is provided inside the screen box, and the openable guide plate is located below the upper group of screens, and two openings are provided at the lower end of the screen box, and an openable door panel 2 is respectively provided at the two openings, and the openable door panel 2 is evenly provided with discharge ports that can guide the materials screened by the screens one by one.

[0005] Furthermore, the openable material guide plate includes a frame slidably connected to the screen box, the frame is evenly connected with the material guide plates through short shafts, the short shaft is connected to one side of the material guide plate, the material guide plate in a relaxed state is vertically downward, L-shaped supports are fixed to the lower sides of both ends of the frame, two telescopic oil cylinders are fixed to the upper surface of the L-shaped support, a push rod is fixed between the upper ends of the two telescopic oil cylinders, when double screening is used, the two groups of screens are separated from each other by the openable material guide plate, the push rod is driven to move upward by the extension of the telescopic oil cylinder, and all the material guide plates can be pushed upward by the push rod, so that The guide plate is adjusted to a horizontal state, and all the guide plates form a flat plate, and the undersize material of the upper group of screens is guided out. When the raw materials are screened multiple times, the push rod is driven downward by the retracted end of the telescopic cylinder, so that one side of the guide plate rotates downward, and a gap is generated between the guide plates, so that the undersize material of the upper group of screens can be guided to the upper surface of the lower group of screens. When the telescopic cylinder drives the push rod to move to the lowest point, the guide plate is always in an inclined state, so as to avoid the guide plate being stuck when the telescopic cylinder drives the push rod upward when it is in a vertical state.

[0006] Furthermore, when the mesh sizes of the two sets of screens are the same, the same corresponding discharge ports on the upper and lower openable door panels are connected through a bellows, and the raw materials of the same size screened out can be discharged from one opening through the bellows.

[0007] Furthermore, the switching valve plate assembly includes a rotating shaft rotatably connected to the feed channel, a valve plate is provided on the outside of the rotating shaft, and a servo motor is provided on one side of the feed channel to drive the rotating shaft to rotate. The rotation of the servo motor can drive the rotating shaft to rotate, and the rotation of the rotating shaft can drive the valve plate to rotate. When all the raw materials need to be introduced into the upper surface of one group of valve plates, the upper end of the valve plate is moved to the inner side of the feed channel. When the raw materials need to be introduced into the upper surfaces of two groups of valve plates at the same time, the valve plate is adjusted to a vertical state.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: when double screening is used, the two groups of screens are separated from each other by the openable guide plate, and the telescopic oil cylinder is extended to drive the push rod to move upward, and all the guide plates can be pushed upward by the push rod, so that the guide plates are adjusted to a horizontal state, and all the guide plates form a flat plate, and the undersize material of the upper group of screens is guided out; when the raw materials are screened multiple times, the push rod is driven downward by the retracted end of the telescopic oil cylinder, so that one side of the guide plate is rotated downward, so that a gap is generated between the guide plates, so that the undersize material of the upper group of screens can be guided to the upper surface of the lower group of screens, and when the telescopic oil cylinder drives the push rod to move When it reaches the bottom, the guide plate is always in an inclined state, so as to avoid the guide plate from getting stuck when it is in a vertical state due to the telescopic oil cylinder driving the push rod to push upward. The rotation of the servo motor can drive the rotation of the shaft, and the rotation of the shaft can drive the rotation of the valve plate. When all the raw materials need to be introduced into the upper surface of one set of valve plates, the upper end of the valve plate is moved to the inner side of the feed channel. When the raw materials need to be introduced into the upper surfaces of two sets of valve plates at the same time, the valve plates are adjusted to a vertical state. The suspended composite screen has a simple structure and is easy to operate. It can not only perform multiple screenings, but also perform double-speed screening, and can use one set of screening meshes for screening, which is more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of the utility model;

[0010] Figure 2 This is a left-side structural diagram of the present utility model;

[0011] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0012] Figure 4 This is a schematic structural diagram of the switching valve plate assembly of the utility model.

[0013] In the figure: 1 hanger, 2 hanging shaft, 3 mounting support, 4 screen box, 5 vibrator, 6 openable door panel, 7 screen, 8 switching valve plate assembly, 81 rotating shaft, 82 valve plate, 83 servo motor, 9 feed channel, 10 openable guide plate, 101 frame, 102 guide plate, 103 L-type support, 104 telescopic cylinder, 105 push rod, 11 openable door panel 2, 12 discharge port, 13 bellows. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] See also Figure 1-4The utility model provides a technical solution: a suspended composite screen, including a hanger 1, four hanging shafts 2 are fixed on the hanger 1, and the lower ends of the four hanging shafts 2 are fixed with mounting supports 3, and a screen box 4 is fixed between the four mounting supports 3, and the screen box 4 is tilted. Two groups of screens 7 are arranged inside the screen box 4, and an exciter 5 for driving the screen box 4 to swing and slide is provided. An opening is provided at the inclined upper end of the screen box 4, and an openable door panel 6 is provided on the opening. A feed channel 9 for introducing raw materials into the upper surface of the two groups of screens 7 is provided on the openable door panel 6. A partition is provided in the middle of the feed channel 9, which divides the feed channel 9 into two channels, and a switching valve plate assembly 8 is provided at the internal inlet of the feed channel 9. The screen box 4 is provided with an openable guide plate 1 0, the openable guide plate 10 is located below a group of screens 7 above, the lower end of the screen box 4 is provided with two openings, and an openable door panel 2 11 is respectively provided at the two openings, and the openable door panel 2 11 is evenly provided with a discharge port 12 that can guide the materials screened by the screen 7 one by one. The openable guide plate 10 includes a frame 101 slidably connected to the screen box 4, and the frame 101 is evenly connected with a guide plate 102 through a short shaft. The short shaft is connected to one side of the guide plate 102, and the guide plate 102 in a relaxed state is vertically downward. L-shaped supports 103 are fixed to the lower sides of both ends of the frame 101, and two telescopic cylinders 104 are fixed to the upper surface of the L-shaped support 103. A push rod 105 is fixed between the upper ends of the two telescopic cylinders 104. When double screening is used, The two groups of screens 7 are separated from each other by the openable guide plate 10, and the telescopic cylinder 104 is extended to drive the push rod 105 to move upward. All the guide plates 102 can be pushed upward by the push rod 105, so that the guide plates 102 are adjusted to a horizontal state. All the guide plates 102 form a flat plate, and the undersize material of the group of screens 7 above them is discharged. When the raw materials are screened multiple times, the push rod 105 is driven downward by the retracted end of the telescopic cylinder 104, so that one side of the guide plate 102 is rotated downward, so that a gap is generated between the guide plates 102, so that the undersize material of the upper group of screens 7 can be introduced into the upper surface of the group of screens 7 below. When the telescopic cylinder 104 drives the push rod 105 to move to the bottom, the guide plate 102 is always in a tilted state. , in order to avoid the phenomenon of the guide plate 102 being stuck when the telescopic cylinder 104 drives the push rod 105 to push upward when the guide plate 102 is in a vertical state. When the mesh numbers of the two groups of screens 7 are the same, the corresponding discharge ports 12 on the upper and lower openable door panels 11 are connected through the bellows 13. The raw materials of the same size screened out can be discharged from one opening through the bellows 13. The switching valve plate assembly 8 includes a rotating shaft 81 rotatably connected to the feed channel 9. A valve plate 82 is provided on the outer side of the rotating shaft 81. A servo motor 83 is provided on one side of the feed channel 9 to drive the rotating shaft 81 to rotate. The rotation of the servo motor 83 can drive the rotating shaft 81 to rotate, and the rotation of the rotating shaft 81 can drive the valve plate 82 to rotate. When all the raw materials need to be introduced into the upper surface of one group of valve plates 82,Move the upper end of the valve plate 82 to the inner side of the feed channel 9. When it is necessary to simultaneously introduce the raw materials into the upper surface of the two sets of valve plates 82, adjust the valve plates 82 to a vertical state. This hanging composite screen has a simple structure and is easy to operate. It can not only perform multiple screenings, but also perform double-speed screening, and can use a set of screening meshes for screening, making it more flexible to use.

[0016] During use: the rotation of the servo motor 83 can drive the rotation of the shaft 81, and the rotation of the shaft 81 can drive the rotation of the valve plate 82. When it is necessary to introduce all the raw materials into the upper surface of one set of valve plates 82, the upper end of the valve plate 82 is moved to the inner side of the feed channel 9. When it is necessary to introduce the raw materials into the upper surfaces of two sets of valve plates 82 at the same time, the valve plates 82 are adjusted to a vertical state. When double screening is used, the two sets of screens 7 are separated from each other by the openable guide plate 10, and the telescopic cylinder 104 is extended to drive the push rod 105 to move upward, and all the raw materials can be introduced into the upper surface of the valve plates 82 at the same time. The guide plate 102 is pushed upward to adjust the guide plate 102 to a horizontal state. All the guide plates 102 form a flat plate, and the undersize material of the group of screens 7 above it is discharged. When the raw materials are screened multiple times, the push rod 105 is driven downward by the retracted end of the telescopic cylinder 104, so that one side of the guide plate 102 is rotated downward, and a gap is generated between the guide plates 102, so that the undersize material of the upper group of screens 7 can be introduced into the upper surface of the group of screens 7 below. When the raw materials are double-screened, the raw materials of the same size screened can be discharged from one opening through the bellows 13.

[0017] Although the 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 these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A suspended composite screen, comprising a hanger (1), characterized in that: Four hanging shafts (2) are fixed on the hanger (1), mounting supports (3) are fixed at the lower ends of the four hanging shafts (2), and a screen box (4) is fixed between the four mounting supports (3). The screen box (4) is tilted, and two groups of screens (7) are provided inside the screen box (4). An exciter (5) for driving the screen box to swing and slide is provided on the screen box (4). An opening is provided at the tilted upper end of the screen box (4), and an openable door panel (6) is provided on the opening. The openable door panel (6) is provided with a feed channel (9) for introducing raw materials into the upper surfaces of the two groups of screens (7). The feed channel (9) is provided. A partition is provided in the middle of the channel (9), and the partition divides the interior of the feed channel (9) into two channels, and a switching valve plate assembly (8) is provided at the internal inlet of the feed channel (9). An openable material guide plate (10) is provided inside the screen box (4), and the openable material guide plate (10) is located below a group of screens (7) above. The lower end of the screen box (4) is provided with two openings, and an openable door panel (11) is provided at each of the two openings. The openable door panel (11) is evenly provided with discharge ports (12) that can discharge the materials screened by the screen (7) one by one.

2. A suspended composite screen according to claim 1, characterized in that: The openable material guide plate (10) comprises a frame (101) slidably connected to the screen box (4); the frame (101) is evenly connected to the material guide plate (102) via a short shaft, the short shaft being connected to one side of the material guide plate (102); the material guide plate (102) in a relaxed state is vertically downward; L-shaped supports (103) are fixed to the lower sides of both ends of the frame (101); two telescopic oil cylinders (104) are fixed to the upper surface of the L-shaped support (103); and a push rod (105) is fixed between the upper ends of the two telescopic oil cylinders (104).

3. The suspended composite screen according to claim 1, characterized in that: When the mesh numbers of the two sets of screens (7) are the same, the same corresponding discharge ports (12) on the upper and lower openable door panels (11) are connected through the bellows (13).

4. The suspended composite screen according to claim 1, characterized in that: The switching valve plate assembly (8) includes a rotating shaft (81) rotatably connected to the feed channel (9), a valve plate (82) is provided on the outer side of the rotating shaft (81), and a servo motor (83) is provided on one side of the feed channel (9) for driving the rotating shaft (81) to rotate.

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