Multi-stage screening device for glass beads

Abstract

The utility model relates to a multistage screening device for glass beads. Comprising a mounting bracket, a plurality of groups of mounting partition plates are mounted on the mounting bracket, and each mounting partition plate is provided with a partition plate discharge port and a discharge guide flat pipe; a discharging base assembly provided with a material sliding runner is mounted on each mounting partition plate; a reciprocating moving assembly is connected to the discharging base assembly in a sliding mode, and a screen structure is inserted into the reciprocating moving assembly. Each eccentric wheel assembly comprises a driving cross rod, an eccentric driving unit and an eccentric wheel connecting shaft; the device further comprises a transmission rotating shaft, a second transmission pair is installed between the transmission rotating shaft and the eccentric wheel connecting shaft, and a first transmission pair is installed between the driving motor and the transmission rotating shaft. According to the utility model, a plurality of screen structures can be driven to synchronously reciprocate by utilizing a single driving motor, so that the production cost is reduced, the screen structures are prevented from being damaged due to long-term vibration, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening equipment, and in particular relates to a multi-stage screening device for glass microbeads. Background Art

[0002] Glass microbeads are a new type of material developed in recent years with a wide range of uses and special properties. This product has the advantages of light weight, low thermal conductivity, high strength, and good chemical stability. Its surface has been specially treated to have lipophilic and hydrophobic properties, and it is very easy to disperse in organic material systems. During the production process of glass microbeads, the glass usually needs to be crushed by a crusher, then screened, and passed through a uniform heating zone at a certain temperature to melt the glass particles and form microbeads under the action of surface tension.

[0003] During the production process, the resulting glass beads need to be screened, categorized by particle size, and larger, unqualified waste removed. This unqualified waste is then returned to production. Existing screening machines have a relatively simple structure, consisting primarily of a box-shaped housing with a filter screen installed within it and a vibration motor mounted outside the recycling bin. During operation, the vibration motor activates, vibrating the entire housing, thereby completing the screening process.

[0004] However, as working time accumulates, long-term vibration can easily damage the entire body of the above-mentioned screening machine. In addition, when multi-stage screening is required, it is often necessary to set up a vibration motor separately under each screen, which increases procurement and production costs and energy consumption. Moreover, the long-term vibration of the screen is also prone to damage, and the screen needs to be regularly inspected and the damaged screen needs to be replaced as a whole, which increases the difficulty of maintenance of the screening machine and the labor intensity of the staff, and reduces the working efficiency of the screening machine. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing a rationally designed multi-stage screening device for glass microbeads. This device utilizes a single drive motor to drive multiple screen structures to synchronously reciprocate for screening, thereby reducing procurement and production costs and energy consumption, preventing damage to the screen structures due to long-term vibration, reducing labor intensity, and improving work efficiency.

[0006] The technical solution adopted by the present invention to solve the technical problems existing in the known technology is as follows: a multi-stage screening device for glass microbeads includes a mounting bracket with a protective cover installed on the outer surface, a plurality of groups of mounting partitions distributed up and down are installed on the mounting bracket, a partition discharge port is opened at the front end of each mounting partition, and a plurality of groups of baffle vertical plates are installed on the mounting bracket and respectively arranged corresponding to the plurality of groups of partition discharge ports, a discharge guide flat tube is installed at each partition discharge port, and a material receiving box is provided below the discharge guide flat tube at the bottom; a discharge base assembly is installed on each mounting partition, an inclined sliding flow channel is provided in the middle of the discharge base assembly, and the low-position discharge end of the sliding flow channel extends to the corresponding partition discharge port; a A reciprocating component, wherein a screen mounting groove is provided on the reciprocating component and a screen structure is inserted in the screen mounting groove; the screen holes on the multiple groups of screen structures gradually decrease from top to bottom; it also includes multiple groups of eccentric wheel assemblies installed on the mounting bracket for driving the multiple groups of reciprocating components to move back and forth simultaneously, the eccentric wheel assembly includes a mounting seat structure, a laterally arranged driving cross bar is slidably connected to the upper and lower parts of the mounting seat structure, and an eccentric driving unit connected to the driving cross bar is installed; an eccentric wheel coupling is installed between the two groups of eccentric driving units; it also includes a transmission shaft that passes through the mounting seat structure and is rotatably connected thereto, a second transmission pair is installed between the transmission shaft and the eccentric wheel coupling, and it also includes a driving motor installed on the mounting bracket, and a first transmission pair is installed between the output shaft of the driving motor and the transmission shaft.

[0007] The advantages and positive effects of the utility model are as follows: the utility model provides a multi-stage screening device for glass beads, which can perform multiple screening operations on the cooled glass beads by arranging multiple groups of screen structures distributed up and down, thereby screening out glass beads of different particle sizes, and can guide the glass beads after a single screening into the screen structure of the lower layer by arranging a discharging base assembly, thereby enabling the glass beads to be screened smoothly and fluently in sequence; by arranging a reciprocating assembly and slidingly cooperating with the discharging base assembly, it can be ensured that the screen structure can move laterally, and by arranging an eccentric wheel assembly, cooperating with the driving motor, the first transmission pair, the transmission shaft and the second transmission pair, the reciprocating assembly can be driven to reciprocate laterally, thereby driving the screen structure installed on the reciprocating assembly to reciprocate laterally, thereby replacing the vibration effect of the traditional vibration motor, avoiding vibration of the screening device as a whole, and avoiding damage to the screen structure caused by long-term vibration, reducing maintenance costs and difficulty, and also reducing the labor intensity of the staff; so that the screening device of the utility model can smoothly perform efficient multiple screening operations. In addition, by configuring a single drive motor, multiple groups of screen structures can be synchronously driven to move back and forth laterally at the same time, without the need to set up multiple drive components, reducing production costs and energy consumption, and eliminating the need for cumbersome wiring and cabling of multiple drive components.

[0008] Preferably: the eccentric drive unit includes an eccentric wheel connected to the end of the eccentric wheel connecting shaft, a driving swing arm is pivotally connected to the eccentric wheel, and also includes a swing pillar fixed to the mounting seat structure, a second swing member is pivotally connected to the swing pillar, the outer end of the second swing member is pivotally linked to the end of the driving swing arm, the first swing member is pivotally connected between the end of the driving cross bar and the middle of the second swing member; a Y-type joint is installed at the other end of the driving cross bar.

[0009] Preferably: the mounting seat structure includes a mounting seat upright plate, and the mounting seat top plate and the mounting seat bottom plate are fixed to the upper end and lower end of the mounting seat upright plate respectively, and the mounting seat top plate and the mounting seat bottom plate are fixed to the cross bar guide plate, and the driving cross bar is slidably connected to the cross bar guide plate through a linear bearing; the end of the eccentric wheel coupling passes through the mounting seat structure and is rotatably connected to the mounting seat structure through a rolling bearing.

[0010] Preferably: the discharge base assembly includes a mounting base installed on a mounting partition, a notch is provided at the end of the mounting base and a material receiving piece is installed at the notch, a sliding material flow channel is provided on the top surface of the material receiving piece, and the sliding material flow channel is in a state where the inner end is higher and the outer end is lower; a plurality of groups of transverse guide grooves extending laterally and having a triangular cross-section are provided on the top surface of the mounting base, and the reciprocating moving assembly is in sliding contact with the transverse guide grooves; and a plurality of groups of sliding guide blocks are also provided on the mounting base.

[0011] Preferably: the reciprocating moving component includes a screen seat, a guide slot slider slidingly inserted in the transverse guide slot is provided on the bottom surface of the screen seat, the screen mounting slot is opened in the middle of the screen seat, the screen structure is inserted in the screen mounting slot, and also includes two groups of slide rod hinge seats fixed to the tail end of the screen seat, and a guide slide rod is pivotally connected to each slide rod hinge seat through a pin shaft, and each guide slide rod is slidably inserted in the corresponding sliding guide block, and also includes a transverse mounting rod connected between the two groups of guide slide rods, and the transverse mounting rod is pivotally connected to the eccentric wheel assembly.

[0012] Preferably, the screen structure comprises a screen installation frame with a sunken groove in the middle, the screen installation frame is inserted into the screen installation slot; and the screen is installed in the sunken groove of the screen installation frame.

[0013] Preferably, the device further comprises a hopper mounted on the top of the mounting bracket, the discharge port of the hopper being located above the topmost screen structure, and a vibration motor being mounted on the side wall of the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2It is a three-dimensional structural diagram of the screen structure, the discharging base assembly and the reciprocating moving assembly in the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the eccentric wheel assembly in the utility model.

[0017] In the figure: 1. Mounting bracket; 2. Material receiving box; 3. Material blocking plate; 4. Mounting partition; 5. Discharge guide flat tube; 6. Discharge port of partition; 7. Screen structure; 7-1. Screen mounting frame; 7-2. Screen; 8. Discharge base assembly; 8-1. Mounting base; 8-2. Sliding material flow channel; 8-3. Transverse guide groove; 8-4. Sliding guide block; 9. Reciprocating assembly; 9-1. Transverse mounting rod; 9-2. Guide slide rod; 9-3. Slide rod hinge seat; 9-4. Screen seat; 9-5. Screen mounting groove; 9-6. Guide groove slider; 10. Drive Motor; 11. First transmission pair; 12. Transmission shaft; 13. Second transmission pair; 14. Eccentric assembly; 14-1. Y-type joint; 14-2. Driving cross bar; 14-3. Cross bar guide plate; 14-4. Driving swing arm; 14-5. First swinging member; 14-6. Second swinging member; 14-7. Swinging support; 14-8. Eccentric; 14-9. Mounting seat top plate; 14-10. Eccentric coupling; 14-11. Mounting seat vertical plate; 14-12. Mounting seat bottom plate; 15. Vibration motor; 16. Drop hopper; 17. Protective cover. DETAILED DESCRIPTION

[0018] In order to further understand the content, features and effects of the present invention, the following embodiments are given to explain in detail:

[0019] See Figure 1 The multi-stage screening device for glass beads of the present invention comprises a mounting bracket 1 with a protective cover 17 mounted on the outer surface thereof, and the mounting bracket 1 is formed by welding a plurality of groups of profiles to each other.

[0020] A plurality of groups of mounting partitions 4 are installed on the mounting bracket 1 in an upper and lower distribution, and a partition discharge port 6 is provided at the front end of each mounting partition 4. A plurality of groups of material blocking vertical plates 3 are also installed on the mounting bracket 1 and are respectively arranged corresponding to the plurality of groups of partition discharge ports 6. A discharge guide flat tube 5 is installed at each partition discharge port 6, and a material receiving box 2 is provided below the discharge guide flat tube 5 at the bottom.

[0021] like Figure 1As shown, a discharge base assembly 8 is mounted on each mounting baffle 4. An inclined sliding channel 8-2 is disposed in the middle of the discharge base assembly 8. The lower discharge end of the sliding channel 8-2 extends to the corresponding baffle discharge port 6. A reciprocating assembly 9, located above the sliding channel 8-2, is slidably connected to the discharge base assembly 8. A screen mounting slot 9-5 is defined in the reciprocating assembly 9, and a screen structure 7 is inserted into the screen mounting slot 9-5. The sieve apertures of the multiple sets of screen structures 7 gradually decrease in size from top to bottom. After the screening operation is completed, the screen structure 7 can be removed to collect the glass beads trapped therein.

[0022] See further Figure 2 In this embodiment, the discharge base assembly 8 includes a mounting base 8-1 mounted on the mounting partition 4, a notch is provided at the end of the mounting base 8-1 and a material receiving piece is installed at the notch, a sliding material flow channel 8-2 is provided on the top surface of the material receiving piece, and the sliding material flow channel 8-2 is in a state where the inner end is higher and the outer end is lower; a plurality of groups of transversely extending transverse guide grooves 8-3 with triangular cross-sections are provided on the top surface of the mounting base 8-1, and the reciprocating moving assembly 9 is in sliding contact with the transverse guide grooves 8-3; and a plurality of groups of sliding guide blocks 8-4 fixedly connected to the mounting base 8-1 are also provided.

[0023] like Figure 2 As shown, in this embodiment, the above-mentioned reciprocating moving component 9 includes a screen seat 9-4, and a guide slot slider 9-6 that slides through the transverse guide slot 8-3 is provided on the bottom surface of the screen seat 9-4. The screen mounting slot 9-5 is opened in the middle of the screen seat 9-4, and the screen structure 7 is inserted in the screen mounting slot 9-5. It also includes two groups of slide rod hinge seats 9-3 fixed to the tail end of the screen seat 9-4, and each slide rod hinge seat 9-3 is pivotally connected with a transversely arranged guide slide 9-2 through a pin shaft. Each guide slide 9-2 is slidably passed through the corresponding sliding guide block 8-4, and also includes a transverse mounting rod 9-1 connected between the two groups of guide slides 9-2, and the transverse mounting rod 9-1 is pivotally connected to the transverse end of the eccentric wheel assembly 14.

[0024] like Figure 2 As shown, the screen structure 7 includes a screen installation frame 7-1 with a sunken groove in the middle, and the screen installation frame 7-1 is inserted into the screen installation slot 9-5; a screen 7-2 is installed in the sunken groove of the screen installation frame 7-1.

[0025] like Figure 1 As shown, this embodiment also includes multiple eccentric wheel assemblies 14 installed on the mounting bracket 1 for driving multiple reciprocating assemblies 9 to move back and forth simultaneously. Figure 3The eccentric wheel assembly 14 includes a mounting seat structure, and a transversely arranged driving cross bar 14-2 is slidably connected to the upper and lower parts of the mounting seat structure, and an eccentric driving unit connected to the driving cross bar 14-2 is installed; at the end of the driving cross bar 14-2 away from the eccentric driving unit, a Y-type joint 14-1 is installed, and the transverse mounting rod 9-1 is pivotally connected to the Y-type joint 14-1, and an eccentric wheel coupling 14-10 is installed between the two groups of eccentric driving units.

[0026] Among them, the above-mentioned eccentric drive unit includes an eccentric wheel 14-8 connected to the end of the eccentric wheel connecting shaft 14-10, and a driving swing arm 14-4 is pivotally connected to the eccentric wheel 14-8, and also includes a swing pillar 14-7 fixed on the mounting seat structure, and a second swing member 14-6 is pivotally connected to the swing pillar 14-7, and the outer end of the second swing member 14-6 is pivotally linked to the end of the driving swing arm 14-4, and the first swing member 14-5 is pivotally connected between the end of the driving cross bar 14-2 and the middle part of the second swing member 14-6.

[0027] In addition, the above-mentioned mounting seat structure includes a mounting seat upright plate 14-11, and a mounting seat top plate 14-9 and a mounting seat bottom plate 14-12 are respectively fixed to the upper end and lower end of the mounting seat upright plate 14-11, and a cross bar guide plate 14-3 is fixed to the mounting seat top plate 14-9 and the mounting seat bottom plate 14-12, and the driving cross bar 14-2 is slidably connected to the cross bar guide plate 14-3 through a linear bearing; the end of the eccentric wheel connecting shaft 14-10 passes through the mounting seat structure and is rotatably connected to the mounting seat structure through a rolling bearing.

[0028] like Figure 1 and Figure 3 As shown, this embodiment also includes a transmission shaft 12 that passes through the mounting seat structure and is rotatably connected thereto, a second transmission pair 13 is installed between the transmission shaft 12 and the eccentric wheel coupling 14-10, and also includes a drive motor 10 installed on the mounting bracket 1, and a first transmission pair 11 is installed between the output shaft of the drive motor 10 and the transmission shaft 12.

[0029] The transmission shaft 12 passes through the mounting structure and is rotatably connected to the mounting structure via rolling bearings. The second transmission pair 13 includes sprockets keyed to the eccentric shaft 14-10 and the transmission shaft 12, respectively, with a chain in a closed state in a transmission connection between the two sets of sprockets. The first transmission pair 11 includes a driving sprocket keyed to the output shaft of the drive motor 10 and a driven sprocket keyed to the transmission shaft 12, with a chain in a closed state in a transmission connection between the driving sprocket and the driven sprocket.

[0030] like Figure 1As shown, this embodiment further includes a hopper 16 mounted on the top of the mounting bracket 1, the discharge port of the hopper 16 being located above the topmost screen structure 7, and a vibration motor 15 being mounted on the side wall of the hopper 16. A slot corresponding to the feed port of the hopper 16 is provided on the top of the protective cover 17, an inspection window is provided on the side of the protective cover 17, and an inspection door is mounted on the inspection window.

[0031] Working process:

[0032] Under the transmission action of the first transmission pair 11, the driving motor 10 is started to drive the transmission shaft 12 to rotate. Under the transmission action of the second transmission pair 13, the rotating transmission shaft 12 can drive the eccentric wheel connecting shaft 14-10 to rotate, and then drive the eccentric wheel 14-8 to rotate. Under the transmission action of the driving swing arm 14-4, the first swinging member 14-5 and the second swinging member 14-6, the rotating eccentric wheel 14-8 can drive the driving cross bar 14-2 to move back and forth laterally, and then drive the reciprocating moving assembly 9 connected thereto to move back and forth laterally. The reciprocating moving assembly 9 that moves back and forth laterally can drive the screen structure 7 installed thereon to move back and forth laterally.

[0033] The cooled glass beads are introduced into the drop hopper 16, and the glass position falls into the screen structure 7 on the top layer. The screen structure 7 moves back and forth laterally to screen the glass beads therein. Glass beads larger than the sieve holes of the screen structure 7 are retained on the screen structure 7, and glass beads smaller than the sieve holes of the screen structure 7 fall onto the discharge base assembly 8 and flow into the discharge guide flat tube 5 through the partition discharge port 6 under the guidance of the sliding flow channel 8-2. Under the guidance of the discharge guide flat tube 5, the glass beads that have passed the screening operation of the upper screen structure 7 fall into the screen structure 7 of the lower layer. Similarly, the screen structure 7 of the lower layer moves back and forth to screen the glass beads flowing into it again. Repeating the above operation can perform multiple screening operations on the glass beads, and glass beads of different particle sizes are retained on the screen structures 7 of different layers. The glass beads with the smallest particle size are collected by the receiving box 2.

[0034] After the screening operation is completed, the inspection door installed on the protective cover 17 is opened, and then the screen structure 7 is removed in sequence to achieve the purpose of collecting the glass beads trapped by the screen structure 7.

Claims

1. A multi-stage screening device for glass microbeads, characterized by: The invention comprises a mounting bracket (1) with a protective cover (17) mounted on the outer surface, a plurality of mounting partitions (4) distributed in an upper and lower direction mounted on the mounting bracket (1), a partition discharge port (6) being provided at the front end of each mounting partition (4), a plurality of material blocking vertical plates (3) mounted on the mounting bracket (1) and corresponding to the plurality of partition discharge ports (6), a discharge guide flat tube (5) being mounted at each partition discharge port (6), and a discharge guide flat tube (5) being provided at the bottom. A receiving box (2) is provided below the discharging base assembly (8); a discharging base assembly (8) is installed on each mounting partition (4); an inclined sliding channel (8-2) is provided in the middle of the discharging base assembly (8); the low-position discharging end of the sliding channel (8-2) extends to the corresponding partition discharging port (6); a reciprocating moving assembly (9) located above the sliding channel (8-2) is slidably connected to the discharging base assembly (8); a screen installation slot (9-5) is provided on the reciprocating moving assembly (9); ) and a screen structure (7) is inserted at the screen installation groove (9-5); the screen holes on the multiple sets of screen structures (7) gradually decrease from top to bottom; and also include multiple sets of eccentric wheel assemblies (14) installed on the installation bracket (1) for driving the multiple sets of reciprocating moving assemblies (9) to move back and forth horizontally at the same time, the eccentric wheel assembly (14) includes a mounting seat structure, and a transversely arranged driving cross bar (14-2) is slidably connected to the upper and lower parts of the mounting seat structure, and a driving cross bar (14-2) is installed. ) are connected to each other; an eccentric wheel coupling (14-10) is installed between the two groups of eccentric drive units; it also includes a transmission shaft (12) that passes through the mounting seat structure and is rotatably connected thereto, a second transmission pair (13) is installed between the transmission shaft (12) and the eccentric wheel coupling (14-10), and it also includes a driving motor (10) installed on the mounting bracket (1), and a first transmission pair (11) is installed between the output shaft of the driving motor (10) and the transmission shaft (12).

2. The multi-stage screening device for glass beads according to claim 1, characterized in that: The driving unit comprises an eccentric wheel (14-8) connected to the end of an eccentric wheel connecting shaft (14-10), a driving swing arm (14-4) being pivotally connected to the eccentric wheel (14-8), a swing support (14-7) fixed to the mounting seat structure, a second swing member (14-6) being pivotally connected to the swing support (14-7), an outer end of the second swing member (14-6) being pivotally linked to the end of the driving swing arm (14-4), a first swing member (14-5) being pivotally connected between the end of a driving cross bar (14-2) and the middle of the second swing member (14-6), and a Y-type joint (14-1) being mounted on the other end of the driving cross bar (14-2).

3. The multi-stage screening device for glass microbeads according to claim 1, wherein: The mounting seat structure comprises a mounting seat upright plate (14-11), a mounting seat top plate (14-9) and a mounting seat bottom plate (14-12) are fixedly connected to the upper end and lower end of the mounting seat upright plate (14-11), a crossbar guide plate (14-3) is fixedly connected to the mounting seat top plate (14-9) and the mounting seat bottom plate (14-12), and a driving crossbar (14-2) is slidably connected to the crossbar guide plate (14-3) via a linear bearing; and an end of an eccentric wheel connecting shaft (14-10) passes through the mounting seat structure and is rotatably connected to the mounting seat structure via a rolling bearing.

4. The multi-stage screening device for glass microbeads according to claim 1, wherein: The discharge base assembly (8) includes a mounting base (8-1) mounted on a mounting partition (4), a notch is provided at the end of the mounting base (8-1) and a material receiving piece is installed at the notch, a sliding material flow channel (8-2) is provided on the top surface of the material receiving piece, and the sliding material flow channel (8-2) is in a state where the inner end is higher and the outer end is lower; a plurality of groups of transverse guide grooves (8-3) extending laterally and having a triangular cross section are provided on the top surface of the mounting base (8-1), and a reciprocating moving assembly (9) is in sliding contact with the transverse guide grooves (8-3); and the discharging base assembly (8) further includes a plurality of groups of sliding guide blocks (8-4) fixedly connected to the mounting base (8-1).

5. The multi-stage screening device for glass beads as claimed in claim 4, characterized in that: The movable assembly (9) includes a screen seat (9-4), a guide slot slider (9-6) slidably inserted into the transverse guide slot (8-3) is provided on the bottom surface of the screen seat (9-4), a screen installation slot (9-5) is opened in the middle of the screen seat (9-4), and the screen structure (7) is inserted into the screen installation slot (9-5). The movable assembly (9) also includes two groups of slide bar hinge seats (9-3) fixed to the tail end of the screen seat (9-4), and each slide bar hinge seat (9-3) is pivotally connected to a guide slide bar (9-2) through a pin shaft. Each guide slide bar (9-2) is slidably inserted into the corresponding sliding guide block (8-4). The movable assembly (9) also includes a transverse installation rod (9-1) connected between the two groups of guide slide bars (9-2), and the transverse installation rod (9-1) is pivotally connected to the eccentric wheel assembly (14).

6. The multi-stage screening device for glass microbeads according to claim 5, wherein: The screen structure (7) comprises a screen installation frame (7-1) with a sunken groove in the middle, the screen installation frame (7-1) is inserted into the screen installation slot (9-5), and a screen (7-2) is installed in the sunken groove of the screen installation frame (7-1).

7. The multi-stage screening device for glass microbeads according to claim 1, wherein: The device further comprises a hopper (16) installed on the top of the mounting bracket (1), wherein the discharge port of the hopper (16) is located above the topmost screen structure (7), and a vibration motor (15) is installed on the side wall of the hopper (16).

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