A direct discharge screen for premixed powder

Abstract

The utility model belongs to premixed powder processing technical field especially relates to a kind of direct discharge screen for premixed powder, including frame and lid, frame inside is equipped with filter screen, multiple screening holes are uniformly distributed on the surface of filter screen, frame both sides are equipped with vibration motor, crushing mechanism is equipped above filter screen, and the crushing mechanism includes mounting seat and several sets of crushing blade arranged on the peripheral wall of mounting seat, the lower end surface of mounting seat is rotatably connected with filter screen, equidistantly several inclined grooves are opened in the upper end surface of mounting seat, the output end of vibration motor is connected with rotating rod, the peripheral wall of rotating rod is equipped with sawtooth engaged with inclined groove, so that rotating rod rotation drives mounting seat to rotate, air hole is opened in the side wall of frame, air hose is in air hole, and one end of air hose placed in frame is equipped with air jet nozzle;Compared with prior art, the utility model significantly improves screening efficiency while reducing material residue, and overall structure considers crushing and screening integration and anti-blocking function.

Description

Technical Field

[0001] This utility model relates to the field of premixed powder processing technology, and more specifically, it relates to a straight discharge sieve for premixed powder. Background Technology

[0002] A direct discharge vibrating screen is an industrial equipment for screening materials. It uses a vibrating motor placed on both sides of the machine body as the vibration source. The screen produces several sizes of oversize and undersize materials, which are discharged from their respective outlets to complete the screening.

[0003] For example, the novel straight-discharge screen disclosed in authorization announcement number CN214320873U prevents the problem of deviation when the vibrating motor is installed symmetrically on both sides. The vibrating motor drives the entire device to vibrate, which can protect the upper frame and prevent the upper frame from cracking, thereby improving the safety of the device.

[0004] While the above methods improve the safety of screening, the materials to be screened sometimes contain sticky lumps. Vibrating the screen alone is insufficient to break up these sticky lumps, thus affecting the screening effect. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a direct discharge sieve for premixed powder with better screening effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A direct-discharge sieve for premixed powder includes a frame and a cover. A filter screen is installed inside the frame, with multiple sieving holes evenly distributed on its surface. Vibrating motors are installed on both sides of the frame, and a crushing mechanism is located above the filter screen. The pulverizing mechanism includes a mounting base and several pulverizing blades fitted onto the outer periphery of the mounting base. The lower end face of the mounting base is rotatably connected to a filter screen, and the upper end face of the mounting base has several equidistant inclined grooves. The output end of the vibrating motor is connected to a rotating rod, and the outer periphery of the rotating rod has serrations that mesh with the inclined grooves, so that the rotation of the rotating rod drives the mounting base to rotate. The frame has ventilation holes on its side walls, and an air supply hose is installed inside each ventilation hole. One end of the air supply hose passes through the ventilation hole and the other end is connected to an air pump. An air nozzle is installed at the end of the air supply hose that is inside the frame. The lower end face of the frame has a discharge port, and the upper part of the cover has a feed port.

[0007] The present invention is further configured such that: a shock-absorbing component is provided below the frame, the shock-absorbing component includes a shock-absorbing rod, a base and a support foot, there are multiple shock-absorbing rods, the multiple shock-absorbing rods are evenly arranged on the lower end face of the frame, the other end of the shock-absorbing rod is fixed to the base, and the support foot is fixed to the lower end face of the base.

[0008] The present invention is further configured such that: a discharge pipe is provided on the discharge port, and the discharge pipe passes through the base.

[0009] The present invention is further configured such that: a feeding frame is provided on the cover, a feeding port communicating with the feeding port is opened in the feeding frame, a crushing roller is rotatably connected to the inner wall of the feeding frame, a rotary motor is connected to one end of the crushing roller, and a number of crushing teeth are provided on the outer peripheral wall of the crushing roller.

[0010] The present invention is further configured such that: a shock-absorbing spring is sleeved on the outer peripheral wall of the shock-absorbing rod, and the two ends of the shock-absorbing spring are respectively fixed to the upper end face of the base and the lower end face of the frame. Compared with the shortcomings of the prior art, the beneficial effects of this utility model are as follows: The rotation of the rotating rod, connected to the output end of the vibrating motor, is driven by the meshing of the sawtooth teeth on the outer wall of the rotating rod and the inclined groove on the upper surface of the mounting base. This allows the rotating rod to directly drive the mounting base of the crushing mechanism to rotate synchronously, creating a dynamic cutting effect on the crushing blades above the filter screen. Combined with the vibration of the filter screen itself, this effectively decomposes agglomerated materials. The air delivery hose and nozzle inside the vent holes deliver airflow via an air pump, which can directionally blow away powder particles clogging the filter screen surface, maintaining the unobstructed flow of the screening holes. The combination of multiple shock-absorbing rods and springs in the shock-absorbing assembly buffers the vertical impact force generated during the operation of the vibrating motor, and the base and support feet form a stable support system. The discharge pipe extending from the discharge port penetrates the base to form a vertical guide channel, preventing powder from scattering. Inside the feed frame, the crushing roller is driven by a rotating motor to pre-crush the input material. The meshing transmission structure of the inclined groove and sawtooth teeth precisely controls the speed of the crushing blades. The vibration of the filter screen and the rotation of the blades create a dual force, significantly improving screening efficiency while reducing material residue. The overall structure integrates crushing and screening with anti-clogging functionality. Attached Figure Description

[0011] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is a structural schematic diagram of an embodiment of the present utility model.

[0012] Frame 1, cover 2, vibrating motor 3, filter screen 4, mounting base 5, crushing blade 6, inclined groove 7, rotating rod 8, saw teeth 9, vent hole 10, shock absorber rod 11, base 12, support foot 13, discharge pipe 14, feed frame 15, crushing roller 16, crushing teeth 17, shock absorber spring 18. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] Working principle: When the premixed powder is fed into the feed port of the cover body 2, the crushing roller 16 in the feed frame 15 drives the crushing teeth 17 to pre-crush the agglomerated material through the rotating motor, and the material falls into the frame body 1 through the feed port.

[0016] After the vibration motor 3 starts, it drives the rotating rod 8 to rotate. Through the meshing of the serration 9 on the outer peripheral wall of the rotating rod 8 and the inclined groove 7 on the upper end face of the mounting base 5, the mounting base 5 of the crushing mechanism drives the crushing blades 6 on the outer peripheral wall to rotate synchronously, dynamically cutting the material accumulated on the surface of the filter screen 4. The filter screen 4 vibrates at high frequency under the synchronous vibration of the vibration motors 3 on both sides, so that the crushed powder is screened downward through the filter holes, and the clumps that do not pass through are continuously crushed.

[0017] The air pump delivers airflow to the nozzle through the air delivery hose, directionally blowing away the fine powder adhering to the surface of the filter screen 4 to unclog the filter pores.

[0018] Multiple shock absorber rods 11 in the shock absorption assembly work together with shock absorber springs 18 to absorb the vertical vibration generated by the vibration motor 3. The base 12 maintains the overall stability of the equipment through the support feet 13. The screened powder enters the discharge pipe 14 that runs through the base 12 through the discharge port to form a centralized discharge path. The meshing structure of the inclined groove 7 and the saw teeth 9 ensures that the rotation speed of the crushing blade 6 matches the vibration frequency. The airflow intensity of the jet nozzle can be adjusted by the air pump to adapt to different powder characteristics. The vibration amplitude of the filter screen 4 and the cutting depth of the crushing blade 6 complement each other to achieve the coordinated operation of anti-clogging screening and efficient crushing.

[0019] like Figures 1 to 2 As shown, The device includes a frame 1 and a cover 2. A shock-absorbing assembly is installed below the frame 1. The shock-absorbing assembly includes a shock-absorbing rod 11, a base 12, and a support foot 13. There are multiple shock-absorbing rods 11, which are evenly arranged on the lower end face of the frame 1. The other end of the shock-absorbing rod 11 is fixed to the base 12. The support foot 13 is fixed to the lower end face of the base 12 and supports the frame 1 through the support foot 13.

[0020] A shock-absorbing spring 18 is installed on the outer peripheral wall of the shock-absorbing rod 11. The two ends of the shock-absorbing spring 18 are respectively fixed to the upper end face of the base 12 and the lower end face of the frame 1. The shock-absorbing spring 18 can absorb the force generated by vibration and reduce the vibration frequency.

[0021] The cover 2 has a feed inlet and a feed frame 15 that cooperates with the feed inlet. The feed frame 15 has a feeding port that communicates with the feed inlet. A crushing roller 16 is rotatably connected to the inner wall of the feed frame 15. A rotary motor is connected to one end of the crushing roller 16. Several crushing teeth 17 are installed on the outer peripheral wall of the crushing roller 16. The crushing roller 16 drives the crushing teeth 17 to pre-crush the agglomerated material through the rotary motor.

[0022] A filter screen 4 is installed inside the frame 1. Multiple screening holes are evenly distributed on the surface of the filter screen 4. Vibration motors 3 are installed on both sides of the frame 1. A mounting base 5 and several crushing blades 6 are mounted on the outer periphery of the mounting base 5 above the filter screen 4. The lower end face of the mounting base 5 is rotatably connected to the filter screen 4. Several inclined grooves 7 are equidistantly provided on the upper end face of the mounting base 5. A rotating rod 8 is connected to the output end of the vibration motor 3. The outer periphery of the rotating rod 8 is equipped with serrations 9 that mesh with the inclined grooves 7, so that the rotation of the rotating rod 8 drives the mounting base 5 to rotate. Through the meshing transmission between the serrations 9 on the outer periphery of the rotating rod 8 connected to the output end of the vibration motor 3 and the inclined grooves 7 on the upper end face of the mounting base 5, the rotation of the rotating rod 8 directly drives the mounting base 5 of the crushing mechanism to rotate synchronously, so that the crushing blades 6 above the filter screen 4 form a dynamic cutting effect. Combined with the vibration of the filter screen 4 itself, it effectively decomposes agglomerated materials.

[0023] The side wall of the frame 1 has a vent hole 10, and there is an air supply hose inside the vent hole 10. One end of the air supply hose passes through the vent hole 10 and the other end is connected to an air pump. The end of the air supply hose placed inside the frame 1 is equipped with a jet nozzle. The air pump delivers airflow, which can directionally blow away the powder particles clogging the surface of the filter screen 4 and keep the screening holes unobstructed.

[0024] The lower end face of the frame 1 has a discharge port, and a discharge pipe 14 is installed on the discharge port. The discharge pipe 14 passes through the base 12 to prevent powder from scattering.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A straight-line sieve for premixed powder, comprising a frame (1) and a cover (2), characterized in that: The frame (1) is equipped with a filter screen (4) inside, and multiple screening holes are evenly distributed on the surface of the filter screen (4). Vibration motors (3) are provided on both sides of the frame (1), and a crushing mechanism is provided above the filter screen (4). The crushing mechanism includes a mounting base (5) and several crushing blades (6) fitted on the outer periphery of the mounting base (5). The lower end face of the mounting base (5) is rotatably connected to the filter screen (4). Several inclined grooves (7) are equidistantly opened on the upper end face of the mounting base (5). A rotating rod (8) is connected to the output end of the vibration motor (3). The outer periphery of the rotating rod (8) is provided with serrations (9) that mesh with the inclined grooves (7) so that the rotating rod (8) can rotate and drive the mounting base (5) to rotate. The frame (1) has a ventilation hole (10) on its side wall. The ventilation hole (10) contains an air supply hose. One end of the air supply hose passes through the ventilation hole (10) and the other end is connected to an air pump. The end of the air supply hose placed inside the frame (1) is equipped with a jet nozzle. The lower end face of the frame (1) is provided with a discharge port, and the upper part of the cover (2) is provided with a feed port.

2. The direct discharge sieve for premixed powder according to claim 1, characterized in that: The frame (1) is provided with a shock-absorbing component below. The shock-absorbing component includes a shock-absorbing rod (11), a base (12) and a support foot (13). There are multiple shock-absorbing rods (11), which are evenly arranged on the lower end face of the frame (1). The other end of the shock-absorbing rod (11) is fixed to the base (12), and the support foot (13) is fixed to the lower end face of the base (12).

3. The direct discharge sieve for premixed powder according to claim 1, characterized in that: The discharge port is provided with a discharge pipe (14), which passes through the base (12).

4. A direct discharge sieve for premixed powder according to claim 1, characterized in that: The cover (2) is provided with a feeding frame (15), and the feeding frame (15) is provided with a feeding port that communicates with the feeding port. The inner wall of the feeding frame (15) is rotatably connected with a crushing roller (16), one end of the crushing roller (16) is connected with a rotary motor, and the outer peripheral wall of the crushing roller (16) is provided with several crushing teeth (17).

5. A direct discharge sieve for premixed powder according to claim 2, characterized in that: The outer peripheral wall of the shock-absorbing rod (11) is fitted with a shock-absorbing spring (18), and the two ends of the shock-absorbing spring (18) are respectively fixed to the upper end face of the base (12) and the lower end face of the frame (1).

Images