Injection molding crushed material screening device

Abstract

The utility model relates to the technical field of injection molding processing, and discloses an injection molding crushed material screening device which comprises a base, a material screening box and a material crushing box, a material crushing mechanism is arranged in the material crushing box, and a material screening mechanism is arranged in the material screening box. A rotating rod drives a rotating disc to rotate, so that a rotating plate rotationally connected with a connecting column can drive a sliding block to reciprocate up and down in a sliding rail, the sliding block drives a connecting frame to move through a connecting rod when moving, and a moving block can slide up and down along the surface of a guide rod in a sliding groove; one end of the first material screening plate and one end of the second material screening plate can perform vertical reciprocating vibration, so that the first material screening plate and the second material screening plate can perform two-stage vibration screening on the crushed injection molding powder, large materials can be efficiently separated from fine powder, and meanwhile, the vibration screening can prevent the crushed materials from being clamped in screen holes to cause blockage; different particle size requirements of injection molding powder can be met, and the reworking frequency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a screening device for injection molding crushed materials. Background Technology

[0002] Injection molding powder is a granular material used in injection molding processes. It is typically composed of high molecular weight polymers (such as plastics and resins) and possibly added functional fillers and additives. After being heated and melted, it is injected into a mold cavity under high pressure, and after cooling and solidification, a plastic product of the desired shape is obtained.

[0003] Traditional screening devices often use a single-stage screening method, which is difficult to meet the requirements of different particle sizes, requires multiple rework, and the crushed material is easy to get stuck in the screen mesh, which can easily lead to equipment downtime and affect the screening efficiency of injection molding powder. Therefore, there is a need to provide a screening device for injection molding crushed material. Utility Model Content

[0004] The purpose of this invention is to provide a screening device for injection molding crushed materials to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screening device for injection molding crushed materials, comprising a base, a screening box, and a crushing box. A crushing mechanism is disposed within the crushing box, and a screening mechanism is disposed within the screening box. The crushing mechanism includes a mounting frame installed on the crushing box, and a motor is mounted on the mounting frame. The screening mechanism includes a first screening plate and a second screening plate disposed within the screening box. A movable block is fixedly connected to the other end of the first and second screening plates. A sliding groove is provided at one end of the screening box, which is slidably connected to the movable block. A guide rail, slidably connected to the movable block, is fixedly disposed within the sliding groove. The guide rod has springs fitted on both the upper and lower sides of the moving block. A slide rail is installed on one side of the screening box, and a slide rod is fixedly installed inside the slide rail. A slider is slidably connected to the slide rail on the slide rod. A connecting rod is fixedly connected to one end of the slider. A connecting frame fixedly connected to the moving block is fixedly connected to one end of the connecting rod. A rotating rod is rotatably installed on one side of the screening box. A belt drive assembly is installed between the rotating rod and the rotating shaft of the motor. A turntable is fixedly connected to one end of the rotating rod. A connecting column is fixedly installed on both the turntable and the slider. A rotating plate is rotatably connected between the two connecting columns.

[0006] Preferably, an active crushing roller and a driven crushing roller are rotatably arranged inside the crushing box. The active crushing roller and the driven crushing roller are connected by a gear transmission assembly. The output shaft of the motor is connected to the roller shaft of the active crushing roller.

[0007] Preferably, one end of the first screening plate and the second screening plate are rotatably connected to the screening box via a rotating shaft, the first screening plate is positioned above the second screening plate, and the first screening plate and the second screening plate are inclined.

[0008] Preferably, the other end of the screening box is provided with a discharge port corresponding to the first screening plate and the second screening plate, and a collection box surrounding the discharge port is fixedly provided on the screening box.

[0009] Preferably, a collection box is slidably disposed inside the collection box, and a slot for the collection box to enter and exit is opened on one side of the collection box, and a handle is installed on the collection box.

[0010] Preferably, the screening box has a discharge port, and a conveyor belt is installed inside the screening box. The conveyor belt passes through the discharge port and is installed on the base and the screening box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1) This injection molding powder screening device uses a rotating rod to drive a turntable to rotate, which in turn causes a rotating plate connected to a connecting column to drive a slider to move up and down reciprocally within a slide rail. When the slider moves, it drives a connecting frame to move via a connecting rod, allowing a moving block connected to the connecting frame to slide up and down along the guide rod surface in the slide groove. Under the elastic action of the spring, the ends of the first and second screening plates near the moving block can vibrate up and down, enabling the first and second screening plates to perform double-stage vibrating screening of the crushed injection molding powder. This allows large pieces of material to be efficiently separated from fine powder. At the same time, the vibrating screening prevents the crushed material from getting stuck in the screen holes and causing blockage, making it easier to meet the different particle size requirements of injection molding powder and reducing the number of rework cycles.

[0013] 2) This injection molding powder screening device uses a starting motor to drive the active crushing roller to rotate. Under the meshing transmission of the gear transmission assembly, the driven crushing roller rotates relative to the active crushing roller, which breaks down the agglomerates in the injection molding powder into powder. This facilitates secondary crushing of the crushed injection molding powder, reducing the number of large agglomerates in the injection molding powder. At the same time, when the motor is working, it can drive the screening mechanism to vibrate and screen the material, which greatly reduces the energy consumption of the device and improves the screening efficiency of the injection molding powder. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an injection molding pulverized material screening device according to an embodiment of the present utility model;

[0015] Figure 2 This is a cross-sectional view of the screening box and the crushing box in an embodiment of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the screening box and the crushing box in an embodiment of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the crushing mechanism in an embodiment of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the screening mechanism in an embodiment of the present invention.

[0019] In the diagram: 1. Base; 2. Screening box; 3. Crushed material box; 4. Conveyor belt;

[0020] 5. Crushing mechanism; 501. Driven crushing roller; 502. Driven crushing roller; 503. Gear transmission assembly; 504. Mounting bracket; 505. Motor;

[0021] 6. Screening mechanism; 601. First screen plate; 602. Second screen plate; 603. Rotating shaft; 604. Moving block; 605. Guide rod; 606. Spring; 607. Connecting frame; 608. Slide rail; 609. Slide rod; 610. Sliding block; 611. Connecting rod; 612. Rotating rod; 613. Turntable; 614. Belt drive assembly; 615. Connecting column; 616. Rotating plate; 617. Slide groove; 618. Discharge port; 619. Collection box; 620. Collection container. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Combination Figures 1-5 A screening device for injection molding crushed materials includes a base 1, a screening box 2 and a crushing box 3. The screening box 2 has a discharge port and a conveyor belt 4 is installed inside the screening box 2. The conveyor belt 4 passes through the discharge port and is installed on the base 1 and the screening box 2. The crushing box 3 is equipped with a crushing mechanism 5 and the screening box 2 is equipped with a screening mechanism 6.

[0025] See Figure 2 and Figure 4Furthermore, the crushing mechanism 5 includes a mounting frame 504 installed on the crushing box 3, and a motor 505 is installed on the mounting frame 504; an active crushing roller 501 and a driven crushing roller 502 are rotatably arranged inside the crushing box 3, and the active crushing roller 501 and the driven crushing roller 502 are connected by a gear transmission assembly 503; the output shaft of the motor 505 is connected to the roller shaft of the active crushing roller 501.

[0026] Specifically, by starting the motor 505 to drive the active crushing roller 501 to rotate, under the meshing transmission of the gear transmission assembly 503, the driven crushing roller 502 and the active crushing roller 501 rotate relative to each other, so that the clumps in the injection molding powder raw material can be crushed into powder, which facilitates the secondary crushing of the crushed injection molding powder raw material and reduces the number of large clumps in the injection molding powder. At the same time, when the motor 505 is working, it can drive the screening mechanism 6 to vibrate and screen the material, which greatly reduces the energy consumption of the device and improves the screening efficiency of injection molding powder.

[0027] See Figures 2-5 Furthermore, the screening mechanism 6 includes a first screening plate 601 and a second screening plate 602 disposed within the screening box 2. A movable block 604 is fixedly connected to the other end of the first screening plate 601 and the second screening plate 602. A slide groove 617 is provided at one end of the screening box 2, which is slidably connected to the movable block 604. A guide rod 605, which is slidably connected to the movable block 604, is fixedly disposed within the slide groove 617. Springs 606 are sleeved on both the upper and lower sides of the guide rod 605, located on both sides of the movable block 604. A slide rail 608 is installed on one side of the screening box 2. A slide rod 609 is fixedly disposed within the slide rail 608. A slider 610, which is slidably connected to the slide rail 608, is slidably disposed on the slide rod 609. A connecting rod 611 is fixedly connected to one end of the slider 610. A connecting frame 607, which is fixedly connected to the movable block 604, is fixedly connected to one end of the connecting rod 611. A rotating rod 612 is rotatably disposed on one side of the screening box 2. The rotating rod 612 is connected to the motor 50. A belt drive assembly 614 is provided between the rotating shafts of 5. One end of the rotating rod 612 is fixedly connected to a turntable 613. Both the turntable 613 and the slider 610 are fixedly provided with connecting columns 615. A rotating plate 616 is rotatably connected between the two connecting columns 615. One end of the first screening plate 601 and the second screening plate 602 are rotatably connected to the screening box 2 through a rotating shaft 603. The first screening plate 601 is located above the second screening plate 602. The first screening plate 601 and the second screening plate 602 are inclined. The other end of the screening box 2 is provided with a discharge port 618 corresponding to the first screening plate 601 and the second screening plate 602. A collection box 619 surrounding the discharge port 618 is fixedly provided on the screening box 2. A collection box 620 is slidably provided inside the collection box 619. A slot for the collection box 620 to enter and exit is provided on one side of the collection box 619. A handle is installed on the collection box 620.

[0028] Specifically, the rotating rod 612 drives the turntable 613 to rotate, which in turn causes the rotating plate 616, which is rotatably connected to the connecting column 615, to drive the slider 610 to move up and down reciprocally within the slide rail 608. When the slider 610 moves, it drives the connecting frame 607 to move through the connecting rod 611, so that the moving block 604 connected to the connecting frame 607 can slide up and down along the surface of the guide rod 605 in the slide groove 617. Under the elastic action of the spring 606, the ends of the first screening plate 601 and the second screening plate 602 near the moving block 604 can reciprocate up and down, so that the first screening plate 601 and the second screening plate 602 can perform double-stage vibrating screening of the crushed injection molding powder, so that large pieces of material can be efficiently separated from fine powder. At the same time, the vibrating screening can prevent the crushed material from getting stuck in the screen holes and causing blockage, which is convenient to meet the different particle size requirements of injection molding powder and reduce the number of rework.

[0029] In actual operation, the injection molding powder raw material is poured into the crushing box 3. The motor 505 drives the active crushing roller 501 to rotate. Under the meshing transmission of the gear transmission assembly 503, the driven crushing roller 502 and the active crushing roller 501 rotate relative to each other, so that the clumps in the injection molding powder raw material can be crushed into powder.

[0030] When motor 505 is working, the rotating rod 612 rotates under the transmission action of belt drive assembly 614, causing turntable 613 to drive connecting column 615 to rotate. This causes rotating plate 616, which is rotatably connected to connecting column 615, to drive slider 610 to move up and down reciprocally within slide rail 608. Sliding slider 610 slides along slide rod 609 to ensure the stability of slider 610's movement. When slider 610 moves, it drives connecting frame 607 to move through connecting rod 611, allowing moving block 604, which is connected to connecting frame 607, to slide up and down along the surface of guide rod 605 within slide groove 617. Under the elastic action of spring 606, the first screening plate 601 and the second screening plate 602 move closer to the moving block. One end of 604 can reciprocate up and down. The other end of the first screen plate 601 and the second screen plate 602 are rotatably connected to the screen box 2 through the rotating shaft 603, so that the first screen plate 601 and the second screen plate 602 can perform double-stage vibration screening of the crushed injection molding powder, so that large pieces of material can be efficiently separated from fine powder. The fine injection molding powder after screening falls onto the conveyor belt 4 below the second screen plate 602 and is transported outward for discharge. The blocky material falls through the discharge port 618 into the collection box 620 in the collection box 619 under the inclined guidance of the first screen plate 601 and the second screen plate 602. The collection box 620 can be pulled out by the staff and put back into the crushing box 3 for crushing and screening.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A granule screening device for injection molding, comprising a base (1), a screening box (2) and a granule box (3), characterized in that: The material crushing box (3) is provided with a material crushing mechanism (5), and the screening box (2) is provided with a material screening mechanism (6); The material crushing mechanism (5) comprises a mounting frame (504) mounted on the material crushing box (3), and a motor (505) is mounted on the mounting frame (504); The material screening mechanism (6) comprises first and second material screening plates (601, 602) arranged in the screening box (2), and the other ends of the first and second material screening plates (601, 602) are fixedly connected with a moving block (604); one end of the screening box (2) is provided with a sliding groove (617) in sliding connection with the moving block (604); a guide rod (605) in sliding connection with the moving block (604) is fixedly arranged in the sliding groove (617); springs (606) are sleeved on the guide rod (605) on the upper and lower sides of the moving block (604); a sliding rail (608) is mounted on one side of the screening box (2); a sliding rod (609) is fixedly arranged in the sliding rail (608); a sliding block (610) in sliding connection with the sliding rail (608) is slidably arranged on the sliding rod (609); one end of the sliding block (610) is fixedly connected with a connecting rod (611); one end of the connecting rod (611) is fixedly connected with a connecting frame (607) fixedly connected with the moving block (604); a rotating rod (612) is rotatably arranged on one side of the screening box (2); a belt transmission assembly (614) is transmissionally arranged between the rotating rod (612) and the rotating shaft of the motor (505); the rotating rod (612) is fixedly connected with a rotating disc (613); connecting columns (615) are fixedly arranged on the rotating disc (613) and the sliding block (610); and a rotating plate (616) is rotatably connected between the two connecting columns (615).

2. A device for screening injection-molding ground material according to claim 1, characterized in that The material crushing box (3) is provided with a driving material crushing roller (501) and a driven material crushing roller (502); the driving material crushing roller (501) and the driven material crushing roller (502) are transmissionally connected through a gear transmission assembly (503); and the output shaft of the motor (505) is connected with the roller shaft of the driving material crushing roller (501).

3. A device for screening injection-molding ground material according to claim 1, characterized in that: The first and second material screening plates (601, 602) are rotatably connected with the screening box (2) through a rotating shaft (603); the first material screening plate (601) is arranged above the second material screening plate (602); and the first and second material screening plates (601, 602) are arranged in an inclined manner.

4. The injection molding and pulverized material screening apparatus according to claim 1, wherein: The other end of the screening box (2) is provided with a discharging port (618) corresponding to the first and second material screening plates (601, 602); and a collecting box (619) surrounding the discharging port (618) is fixedly arranged on the screening box (2).

5. A device for screening injection-moulded ground material according to claim 4, characterised in that: A collecting box (620) is slidably arranged in the collecting box (619); a slot is formed in one side of the collecting box (619) for the collecting box (620) to enter and exit; and a handle is mounted on the collecting box (620).

6. A device for screening injection-molding ground material according to claim 1, characterized in that: The screen box (2) is provided with a discharge port, and a conveying belt (4) is arranged in the screen box (2), the conveying belt (4) passes through the discharge port and is installed on the base (1) and the screen box (2).

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