Bakelite powder feeding mechanism for injection molding machine

Abstract

The utility model relates to injection molding machine feed technology field, and disclose a kind of bakelite powder feed mechanism of injection molding machine, comprising: processing box and feed tank. Between processing box and feed tank, there is feed cylinder, and the bottom end of feed tank is provided with filter box;Filtering assembly includes filter screen, filter screen is movably arranged in filter box, and the outer side wall of filter screen is fixedly installed with concentration frame, the outer side wall of concentration frame is provided with limiting component, and the bottom end of filter box is communicated with concentration blanking box, and the bottom end of concentration blanking box is fixedly installed with concentration tank, and the bottom end of concentration tank is fixedly communicated with discharge pipe. The rotating motor of the bakelite powder feed mechanism of the injection molding machine drives a pair of rotating rods to rotate through a pair of drive gears, and the rotating rods are driven to rotate by mounting ring, connecting steel rope and rubber impact ball, the rubber impact ball collides with the bottom surface of the filter screen and the inner side wall of the concentration tank, to avoid the accumulation of bakelite powder on the filter screen, and to avoid the attachment of electrified bakelite powder on the inner side wall of the concentration tank.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine material supply technology, and in particular to a bakelite powder supply mechanism for an injection molding machine. Background Technology

[0002] Bakelite powder, also known as bakelite, has good electrical insulation and high temperature resistance properties. It is used to manufacture electronic appliances, daily industrial products, and automotive parts. It is a phenolic plastic with wood flour as the main filler, which is molded into products through injection molding, die casting, and transfer molding. When using bakelite powder to process products, it is necessary to supply bakelite powder to the injection molding machine.

[0003] CN214982758U discloses a bakelite powder feeding mechanism for an injection molding machine, including a frame and a feeding device. The frame is equipped with a conveying device, and a rotary device is connected to a turntable. The turntable has a hinge seat, and a hopper is hinged to the hinge seat. The frame is equipped with a lifting device. The upper end of the lifting cylinder consists of a first planar section, a second planar section, and a spirally rising arc-shaped section. The first planar section is connected to the lowest point of the arc-shaped section, and the second planar section is connected to the highest point of the arc-shaped section. A groove is formed in the upper end of the lifting cylinder, and a slider is slidably connected to the inner cavity of the groove. A lifting rod is hinged to the slider, and the lifting rod is slidably connected to the hopper. This design avoids the need for manual material feeding, reducing the frequency of workplace accidents. Furthermore, the lifting cylinder reduces the number of driving components in the feeding mechanism, lowering the equipment's operating costs.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: Bakelite powder is a mixture of phenolic resin raw materials and fillers. Some fillers can easily increase the hygroscopicity of Bakelite powder, making the raw materials of Bakelite powder prone to clumping, which affects the conveying of Bakelite powder. At the same time, Bakelite powder is very easy to carry a charge. The continuous contact and separation between Bakelite powder and the inner wall of the hopper can also cause Bakelite powder to carry static electricity, which can easily lead to poor material discharge. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the raw material of bakelite powder in the prior art is prone to agglomeration. To address this, we propose a bakelite powder feeding mechanism for injection molding machines.

[0006] To achieve the above objectives, this application adopts the following technical solution: a bakelite powder feeding mechanism for an injection molding machine, comprising: a processing box and a feeding box, a conveying cylinder being provided between the processing box and the feeding box, a filter box being provided at the bottom of the feeding box, a filter assembly being provided inside the filter box, and a processing assembly being provided inside the processing box.

[0007] The filter assembly includes a filter screen, which is movably installed inside the filter box. A central frame is fixedly installed on the outer wall of the filter screen, and a limit component is provided on the outer wall of the central frame. A central discharge box is connected to the bottom of the filter box, and a central box is fixedly installed at the bottom of the central discharge box. A discharge pipe is fixedly connected to the center of the bottom of the central box, and an impact component is provided inside the central discharge box.

[0008] Preferably, the limiting component includes several fixed limiting posts, which are fixedly installed between the top surface and the bottom surface of the filter box. Several fixed sleeves are fixedly installed on the outer wall of the central frame. The fixed limiting posts and the fixed sleeves correspond one-to-one. The fixed sleeves are slidably sleeved on the corresponding fixed limiting posts. Each of the fixed limiting posts is sleeved with a compression spring, which is elastically connected between the bottom surface of the filter box and the bottom surface of the fixed sleeve.

[0009] Preferably, the impact assembly includes a pair of rotating rods, which are rotatably installed between the inner side walls of the centralized material drop box. Several mounting rings are evenly and uniformly fixed on the rotating rods. Fixing rings are fixedly installed on the mounting rings. A connecting steel rope is fixedly connected to the fixing rings. A rubber impact ball is fixedly connected to the other end of the connecting steel rope.

[0010] Preferably, a linkage box is fixedly installed on the outer wall of the filter box and the centralized material discharge box. One end of each pair of rotating rods rotates through the linkage box. A pair of drive gears are provided inside the linkage box. The pair of drive gears are coaxially and fixedly connected to the pair of rotating rods respectively. One drive gear drives the other drive gear through a drive belt. A rotating motor is fixedly installed on the outer wall of the linkage box. The output shaft of the rotating motor is coaxially and fixedly connected to one of the rotating rods.

[0011] Preferably, the processing assembly includes a pair of grinding rollers that cooperate with each other and are rotatably mounted on the inner side wall of the processing box. The top of the processing box is connected to a feed hopper, and the bottom of the processing box is connected to a discharge hopper. A drive box is fixedly installed on the outer side wall of the processing box. A pair of rotating gears are provided inside the drive box. The pair of rotating gears mesh with each other and are respectively coaxially fixedly connected to the rotating shaft of the grinding rollers.

[0012] Preferably, a drive motor is fixedly installed on the inner side wall of the drive box, and the output shaft of the drive motor is coaxially and fixedly connected to a rotating gear. The bottom end of the discharge hopper is set in the central frame.

[0013] Preferably, the top of the feeding box is connected to the feed pipe, the discharge pipe is connected to the conveying cylinder, the feed pipe is connected to the conveying cylinder, a conveying auger is rotatably installed inside the conveying cylinder, a conveying motor is fixedly installed at one end of the conveying cylinder, and the output shaft of the conveying motor is coaxially and fixedly connected to the rotating shaft of the conveying auger.

[0014] Preferably, the bottom of the feeding box is connected to a discharge pipe, and an electromagnetic valve is installed on the discharge pipe.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] In this invention, a drive motor drives a pair of grinding rollers to rotate via a pair of rotating gears. The pair of grinding rollers rotate in opposite directions. The raw material is conveyed to the processing box through the feed hopper, and the pair of grinding rollers crush the lumps in the raw material.

[0017] In this invention, a rotating motor drives a pair of rotating rods to rotate via a pair of drive gears. As the pair of rotating rods rotate, they drive the connecting steel rope and rubber impact ball to rotate via the mounting ring. The rubber impact ball collides with the bottom surface of the filter screen and the inner side wall of the collection box, preventing bakelite powder from accumulating on the filter screen and preventing charged bakelite powder from adhering to the inner side wall of the collection box, thus ensuring smooth material conveying and feeding. Attached Figure Description

[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0019] Figure 1 This is a schematic diagram of the external structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the external structure of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the internal structure of the filter box of this utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the filter box of this utility model;

[0023] Figure 5 For the present utility model Figure 4 A schematic diagram of the structure at point A;

[0024] Figure 6 This is a schematic diagram of the impact component structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the internal structure of the processing box of this utility model;

[0026] Figure 8 This is a schematic diagram of the material conveying cylinder structure of this utility model.

[0027] Legend: 1. Processing box; 2. Feeding box; 21. Feed pipe; 22. Discharge pipe; 23. Solenoid valve; 3. Conveying cylinder; 31. Conveying auger; 32. Conveying motor; 4. Filter box; 5. Filter assembly; 51. Filter screen; 52. Centralized frame; 53. Limiting assembly; 531. Fixed limiting post; 532. Fixed sleeve; 533. Compression spring; 54. Drop box; 55. Centralized box; 56. Discharge pipe; 57. Impact assembly; 571. Rotating rod; 572. Mounting ring; 573. Fixed ring; 574. Connecting steel rope; 575. Rubber impact ball; 576. Linkage box; 577. Drive gear; 578. Drive toothed belt; 579. Rotating motor; 6. Processing assembly; 61. Grinding roller; 62. Feed hopper; 63. Discharge hopper; 64. Drive box; 65. Rotating gear; 66. Drive motor. Detailed Implementation

[0028] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0029] Reference Figures 1-6 As shown, this utility model provides a technical solution: a bakelite powder feeding mechanism for an injection molding machine, comprising: a processing box 1 and a feeding box 2; a conveying cylinder 3 is provided between the processing box 1 and the feeding box 2; a filter box 4 is provided at the bottom of the feeding box 2; a filter assembly 5 is provided inside the filter box 4; and a processing assembly 6 is provided inside the processing box 1.

[0030] The filter assembly 5 includes a filter screen 51, which is movably disposed inside the filter box 4. A central frame 52 is fixedly installed on the outer wall of the filter screen 51. A limit component 53 is provided on the outer wall of the central frame 52. A central discharge box 54 is connected to the bottom of the filter box 4. The filter screen 51 is disposed above the center of the central discharge box 54, and the length and width of the outer edge of the filter screen 51 are smaller than the length and width of the inner edge of the central discharge box 54. A central box 55 is fixedly installed at the bottom of the central discharge box 54. A discharge pipe 56 is fixedly connected to the center of the bottom of the central box 55. The inner side wall of the central box 55 is inclined from the outside to the discharge pipe 56. An impact component 57 is provided inside the central discharge box 54.

[0031] The limiting component 53 includes several fixed limiting posts 531, which are fixedly installed between the top and bottom surfaces of the filter box 4. Several fixed sleeves 532 are fixedly installed on the outer wall of the central frame 52. The fixed limiting posts 531 and the fixed sleeves 532 correspond one-to-one. The fixed sleeves 532 are slidably sleeved on the corresponding fixed limiting posts 531. Each of the fixed limiting posts 531 is fitted with a compression spring 533, which is elastically connected between the bottom surface of the filter box 4 and the bottom surface of the fixed sleeves 532.

[0032] The impact assembly 57 includes a pair of rotating rods 571, which are rotatably mounted between the inner walls of the centralized material drop box 54. Several mounting rings 572 are evenly and uniformly fixed on the rotating rods 571. Fixing rings 573 are fixedly mounted on the mounting rings 572. A connecting steel rope 574 is fixedly connected to the fixing ring 573. A rubber impact ball 575 is fixedly connected to the other end of the connecting steel rope 574. When the rotating rods 571 drive the connecting steel rope 574 and the rubber impact ball 575 to rotate, the rubber impact ball 575 impacts the bottom surface of the filter screen 51 and the inner wall of the centralized box 55.

[0033] A linkage box 576 is fixedly installed on the outer wall of the filter box 4 and the centralized material drop box 54. One end of each of the pair of rotating rods 571 is rotatably inserted into the linkage box 576. A pair of drive gears 577 are provided inside the linkage box 576. The pair of drive gears 577 are coaxially and fixedly connected to the pair of rotating rods 571 respectively. One drive gear 577 drives the other drive gear 577 through a drive belt 578. A rotary motor 579 is fixedly installed on the outer wall of the linkage box 576. The output shaft of the rotary motor 579 is coaxially and fixedly connected to one of the rotating rods 571.

[0034] Reference Figures 1-6 As shown in this embodiment: the rotating motor 579 drives one drive gear 577 to rotate, and the drive gear 577 drives another drive gear 577 to rotate through the drive belt 578. The pair of drive gears 577 drive a pair of rotating rods 571 to rotate. As the pair of rotating rods 571 rotate, the pair of rotating rods 571 drive the connecting steel rope 574 and the rubber impact ball 575 to rotate through the mounting ring 572 and the fixing ring 573. The rubber impact ball 575 impacts the bottom surface of the filter screen plate 51 and the inner wall of the collection box 55. The filter screen plate 51 moves upward along the fixed limit post 531, and then moves downward under the action of gravity, compressing the compression spring 533. The filter screen plate 51 vibrates, preventing bakelite powder from accumulating on the filter screen plate 51 and preventing charged bakelite powder from adhering to the inner wall of the collection box 55, thus ensuring the smooth conveying and feeding effect.

[0035] Reference Figures 1-3 and Figure 7As shown, the processing component 6 includes a pair of grinding rollers 61, which cooperate with each other and are rotatably mounted on the inner side wall of the processing box 1. The top of the processing box 1 is connected to a feed hopper 62, and the bottom of the processing box 1 is connected to a discharge hopper 63. A drive box 64 is fixedly installed on the outer side wall of the processing box 1. A pair of rotating gears 65 are provided inside the drive box 64. The pair of rotating gears 65 mesh with each other and are respectively coaxially fixedly connected to the rotating shaft of the grinding rollers 61.

[0036] A drive motor 66 is fixedly installed on the inner side wall of the drive box 64. The output shaft of the drive motor 66 is coaxially and fixedly connected to a rotating gear 65. The bottom end of the discharge hopper 63 is set in the central frame 52.

[0037] Reference Figures 1-3 and Figure 7 As shown in this embodiment: the raw material is conveyed to the processing box 1 through the feed hopper 62, and the drive motor 66 drives a pair of grinding rollers 61 to rotate through a pair of rotating gears 65. The pair of grinding rollers 61 rotate in opposite directions and crush the lumps in the raw material. The processed raw material falls into the filter box 4 through the discharge hopper 63.

[0038] Reference Figures 1-2 and Figure 8 As shown, the top of the feeding box 2 is connected to the inlet pipe 21, and the outlet pipe 56 is connected to the conveying cylinder 3. The inlet pipe 21 is connected to the conveying cylinder 3, and a conveying auger 31 is rotatably installed inside the conveying cylinder 3. A conveying motor 32 is fixedly installed at one end of the conveying cylinder 3, and the output shaft of the conveying motor 32 is coaxially and fixedly connected to the rotating shaft of the conveying auger 31. The bottom of the feeding box 2 is connected to the discharge pipe 22, and a solenoid valve 23 is installed on the discharge pipe 22.

[0039] Reference Figures 1-2 and Figure 8 As shown in this implementation scheme: the conveyor motor 32 is started, and the conveyor motor 32 drives the conveyor auger 31 to rotate. The processed raw material is conveyed to the conveying cylinder 3 through the discharge pipe 56. The raw material rises along the conveying cylinder 3 and enters the feeding box 2 through the feed pipe 21. The solenoid valve 23 is opened, so that the material is discharged from the discharge pipe 22, thus realizing the feeding.

[0040] Working principle: Raw materials are conveyed into the processing box 1 through the feed hopper 62. The drive motor 66 drives a pair of grinding rollers 61 to rotate through a pair of rotating gears 65. The pair of grinding rollers 61 rotate in opposite directions, crushing the lumps in the raw materials. The processed raw materials fall into the filter box 4 through the discharge hopper 63. The rotating motor 579 drives a pair of rotating rods 571 to rotate through a pair of drive gears 577. As the pair of rotating rods 571 rotate, they drive the connecting steel rope 574 and the rubber impact ball 575 to rotate through the mounting ring 572 and the fixing ring 573. The rubber impact ball 575 impacts the bottom surface of the filter screen plate 51 and the collection... When the inner wall of the middle box 55 is impacted, the filter screen 51 moves upward along the fixed limit post 531, and then moves downward under the action of gravity, compressing the compression spring 533. The filter screen 51 vibrates, preventing bakelite powder from accumulating on the filter screen 51 and preventing charged bakelite powder from adhering to the inner wall of the collection box 55, ensuring smooth conveying and feeding. The conveying motor 32 is started, and the conveying motor 32 drives the conveying auger 31 to rotate. The processed raw material is conveyed to the conveying cylinder 3 through the discharge pipe 56. The raw material rises along the conveying cylinder 3 and enters the feeding box 2 through the feed pipe 21. The solenoid valve 23 is opened, so that the material is discharged from the discharge pipe 22, realizing the feeding.

[0041] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A bakelite powder feeding mechanism for an injection molding machine, characterized in that, It includes a processing box and a feeding box: a conveying cylinder is provided between the processing box and the feeding box, a filter box is provided at the bottom of the feeding box, a filter assembly is provided inside the filter box, and a processing assembly is provided inside the processing box; The filter assembly includes a filter screen plate, which is movably disposed inside the filter box. A central frame is fixedly installed on the outer wall of the filter screen plate, and a limit component is provided on the outer wall of the central frame. A central discharge box is connected to the bottom of the filter box, and a central box is fixedly installed at the bottom of the central discharge box. A discharge pipe is fixedly connected to the center of the bottom of the central box, and an impact component is provided inside the central discharge box.

2. The bakelite powder feeding mechanism for an injection molding machine according to claim 1, characterized in that: The limiting component includes several fixed limiting posts, which are fixedly installed between the top and bottom surfaces of the filter box. Several fixed sleeves are fixedly installed on the outer wall of the central frame. Each of the fixed limiting posts corresponds to one of the fixed sleeves. The fixed sleeves are slidably fitted onto the corresponding fixed limiting posts. Each of the fixed limiting posts is fitted with a compression spring, which is elastically connected between the bottom surface of the filter box and the bottom surface of the fixed sleeve.

3. The bakelite powder feeding mechanism for an injection molding machine according to claim 1, characterized in that: The impact assembly includes a pair of rotating rods, which are rotatably installed between the inner side walls of the centralized material drop box. Several mounting rings are evenly fixedly fitted on the rotating rods at equal intervals. Fixing rings are fixedly installed on the mounting rings. A connecting steel rope is fixedly connected to the fixing ring. A rubber impact ball is fixedly connected to the other end of the connecting steel rope.

4. The bakelite powder feeding mechanism for an injection molding machine according to claim 3, characterized in that: A linkage box is fixedly installed on the outer wall of the filter box and the centralized material discharge box. One end of each pair of rotating rods rotates through the linkage box. A pair of drive gears are provided in the linkage box. The pair of drive gears are coaxially fixedly connected to the pair of rotating rods respectively. One drive gear drives the other drive gear through a drive belt. A rotating motor is fixedly installed on the outer wall of the linkage box. The output shaft of the rotating motor is coaxially fixedly connected to one of the rotating rods.

5. The bakelite powder feeding mechanism for an injection molding machine according to claim 1, characterized in that: The processing assembly includes a pair of grinding rollers that cooperate with each other and are rotatably mounted on the inner side wall of the processing box. The top of the processing box is connected to a feed hopper, and the bottom of the processing box is connected to a discharge hopper. A drive box is fixedly installed on the outer side wall of the processing box. A pair of rotating gears are provided inside the drive box. The pair of rotating gears mesh with each other and are respectively coaxially and fixedly connected to the rotating shaft of the grinding rollers.

6. The bakelite powder feeding mechanism for an injection molding machine according to claim 5, characterized in that: A drive motor is fixedly installed on the inner side wall of the drive box. The output shaft of the drive motor is coaxially and fixedly connected to a rotating gear. The bottom end of the discharge hopper is set in the central frame.

7. The bakelite powder feeding mechanism for an injection molding machine according to claim 1, characterized in that: The top of the feeding box is connected to the feed pipe, the discharge pipe is connected to the conveying cylinder, the feed pipe is connected to the conveying cylinder, a conveying auger is rotatably installed inside the conveying cylinder, a conveying motor is fixedly installed at one end of the conveying cylinder, and the output shaft of the conveying motor is coaxially and fixedly connected to the rotating shaft of the conveying auger.

8. The bakelite powder feeding mechanism for an injection molding machine according to claim 1, characterized in that: The bottom of the feeding box is connected to a discharge pipe, and an electromagnetic valve is installed on the discharge pipe.

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