Feeding mechanism for injection molding of metal products

Abstract

The utility model provides a feeding mechanism for injection molding of metal products, belongs to the technical field of metal products, and solves the problems that after all containers for storing metal powder are poured out, a lot of metal powder is left at the bottoms of the containers, the containers are inconvenient to clean, and raw materials are easy to waste. The feeding mechanism for injection molding of the metal products comprises a material storage box, a feeding port is formed in the material storage box, a hollow shaft is rotationally connected into the material storage box, a first motor is fixed to the upper end of the hollow shaft, the first motor is fixedly connected with the material storage box, a hollow rod is fixed to the lower end of the hollow shaft and communicates with the hollow shaft, and a plurality of dust suction ports are formed in the lower end of the hollow rod; a sealing mechanism is arranged in the hollow rod, a scraping rod is fixed to the lower end of the hollow rod, an air draft mechanism is arranged on the hollow shaft, a discharging pipe is fixed to the lower end of the storage box, and a switching mechanism is arranged on the discharging pipe. The metal powder cleaning device has the advantage that residual metal powder at the bottom of the container can be cleaned after the metal powder in the container is used up.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal products, and relates to a feeding mechanism, in particular to a feeding mechanism for injection molding of metal products. Background Technique

[0002] During the forming process of metal powder, a feeding machine is required to evenly feed the powdered materials after batching into the internal part of an extruder, mainly completing a feeding task.

[0003] After retrieval, as disclosed in a Chinese patent document, a rotary feeding machine for metal powder [Application No.: 202022803128.5; Publication No.: CN 214526297 U]. This rotary feeding machine for metal powder includes a frame, on the top of which a casing is connected. A spiral transmission shaft is rotatably connected inside the casing, and on one side of the spiral transmission shaft, a first driving component is connected. At one end near the first driving component at the top, a feeding hopper is communicated, and at the other end far from the first driving component at the bottom, a discharging pipe is communicated. At the bottom of the frame, a lifting component is provided. The lifting component includes a lifting box, a lead screw, a slider, two top columns, two slide bars, and a second driving component. The bottom of the lifting box is connected with a bottom plate. The lead screw is vertically arranged inside the lifting box. The slider is in threaded connection with the lead screw. The two slide bars are both vertically arranged on both sides of the lead screw and are slidably connected with the slider. One end of the top column is connected with the top of the slider, and the other end of the top column extends to the outside of the lifting box and is connected with the bottom of the frame. The second driving component is arranged on the outer wall of one side of the lifting box and drives the lead screw to rotate. It enables it to cope with working scenarios of different heights and improves its scope of application.

[0004] Although the lifting box disclosed in this patent enables it to cope with working scenarios of different heights and improves its scope of application, however, when all the containers storing metal powder are emptied, a lot of metal powder will remain at the bottom of the containers, which is not convenient to clean and is likely to cause waste of raw materials. Summary of the Utility Model

[0005] The purpose of the present utility model is to address the above problems existing in the prior art and propose a feeding mechanism for injection molding of metal products. The technical problem to be solved by this utility model is: how to clean the redundant metal powder remaining at the bottom of the container when all the metal powder in the container has been used up.

[0006] The purpose of the present utility model can be achieved by the following technical solutions:

[0007] A feeding mechanism for injection molding of metal products, including a storage bin, an inlet is provided on the storage bin, a hollow shaft is rotatably connected inside the storage bin, a first motor is fixed at the upper end of the hollow shaft, the first motor is fixedly connected to the storage bin, a hollow rod is fixed at the lower end of the hollow shaft, the hollow rod is communicated with the hollow shaft, a plurality of dust suction ports are provided at the lower end of the hollow rod, a sealing mechanism is arranged inside the hollow rod, a scraping rod is fixed at the lower end of the hollow rod, an air extraction mechanism is arranged on the hollow shaft, a discharge pipe is fixed at the lower end of the storage bin, and a switching mechanism is arranged on the discharge pipe.

[0008] The working principle of the present utility model is as follows: the discharge pipe is opened through the switching mechanism to pour out the metal powder in the storage bin. When all the metal powder in the storage bin is poured out, excess metal powder will remain at the bottom of the storage bin. The first motor is started to drive the hollow shaft to rotate, and the hollow shaft drives the hollow rod to rotate. Through the air extraction mechanism, the metal powder is sucked into the hollow rod through the dust suction ports and then enters the hollow shaft for centralized treatment. The scraping rod can scrape the metal powder adhered to the bottom of the storage bin clean. When cleaning is not required, the dust suction ports are closed through the sealing mechanism.

[0009] The air extraction mechanism includes a blower fixed inside the hollow shaft, a dust-proof net is fixed on the hollow shaft, air outlet holes are provided on the outer wall of the hollow shaft, a hollow cover communicated with the air outlet holes is fixed on the outer wall of the hollow shaft, the upper end of the hollow cover penetrates through the storage bin, an outlet is provided at the lower end of the hollow shaft, and a lid is detachably arranged on the outlet.

[0010] With the above structure, by installing a blower and starting the blower, the metal powder is sucked into the hollow rod through the dust suction ports and then enters the hollow shaft. After cleaning the metal powder in the storage bin, the lid is opened to clean the metal powder in the hollow shaft, realizing the cleaning of the excess metal powder in the storage bin.

[0011] The sealing mechanism includes two second motors fixed at the upper end of the inner wall of the hollow rod, a lead screw is fixed at the output shaft end of the second motor, a threaded column is fixed on the lead screw, and a sealing cover is fixed at the lower end of the threaded column.

[0012] With the above structure, by installing a sealing cover and starting the second motor to drive the lead screw to rotate, the threaded column on the lead screw drives the sealing cover to move up and down, realizing the sealing of the dust suction ports.

[0013] The switching mechanism includes a ring fixed on the discharge pipe, a hollow circular block is rotatably connected inside the ring, two notches are provided at the corresponding positions of the ring and the hollow circular block, a long pipe is fixedly connected at the lower notch of the ring, and a driving mechanism is arranged between the long pipe and the hollow circular block.

[0014] With the above structure, by installing the hollow circular block and realizing the rotation of the hollow circular block through the driving mechanism, the two notches on the hollow circular block are made to correspond to the two notches on the circular ring, enabling the discharge of metal powder. When the two notches on the hollow circular block are offset from the two notches on the circular ring, the discharge of metal powder can be stopped.

[0015] The driving mechanism includes a motor three fixed on the long tube. A gear one is fixed to the output shaft end of the motor three. A fixed column is fixed on the hollow circular block, and a gear two is fixed on the fixed column. The gear one is meshed and connected with the gear two.

[0016] With the above structure, by installing the gear one and the gear two, starting the motor three, driving the gear one to rotate, the gear one drives the gear two to rotate, and the gear two drives the hollow circular block to rotate, realizing the control of the feeding and stopping of the metal powder.

[0017] Compared with the prior art, the feeding mechanism for metal product injection molding has the following advantages:

[0018] 1. By opening the discharge pipe through the switch mechanism, the metal powder in the storage tank is poured out. When all the metal powder in the storage tank is poured out, there will be excess metal powder remaining at the bottom of the storage tank. Start the motor one, drive the hollow shaft to rotate, the hollow shaft drives the hollow rod to rotate. Through the air extraction mechanism, the metal powder is sucked into the hollow rod through the dust suction port and then enters the hollow shaft for centralized treatment. The scraping rod can scrape the metal powder adhered to the bottom of the storage tank clean. When cleaning is not required, the dust suction port is sealed through the sealing mechanism.

[0019] 2. By installing a blower and starting the blower, the metal powder is sucked into the hollow rod through the dust suction port and then enters the hollow shaft. After cleaning the metal powder in the storage tank, open the lid and clean the metal powder in the hollow shaft, realizing the cleaning of the excess metal powder in the storage tank.

[0020] 3. By installing the hollow circular block and realizing the rotation of the hollow circular block through the driving mechanism, the two notches on the hollow circular block are made to correspond to the two notches on the circular ring, enabling the discharge of metal powder. When the two notches on the hollow circular block are offset from the two notches on the circular ring, the discharge of metal powder can be stopped. Description of the Drawings

[0021] Figure 1 is the overall structural schematic diagram of the present utility model.

[0022] Figure 2 is the cross-sectional view of the present utility model.

[0023] Figure 3 is Figure 2 the enlarged view of A in

[0024] Figure 4 It is a cross-sectional view of the circular ring and the hollow circular block in the present utility model.

[0025] In the figure, 1 is a storage bin; 2 is a hollow shaft; 3 is a first motor; 4 is a hollow rod; 5 is a dust-proof net; 6 is a lid; 7 is a scraping rod; 8 is a second motor; 9 is a lead screw; 10 is a threaded column; 11 is a sealing cover; 12 is a circular ring; 13 is a hollow circular block; 14 is a notch; 15 is a long pipe; 16 is a third motor; 17 is a first gear; 18 is a second gear; 19 is a dust suction port; 20 is a hollow cover; 21 is a fan; 22 is an air outlet hole. Specific embodiments

[0026] The following are specific embodiments of the present utility model and in conjunction with the accompanying drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0027] As Figures 1-4 shown, the feeding mechanism for metal product injection molding of the present invention includes a storage bin 1, an inlet is provided on the storage bin 1, a hollow shaft 2 is rotatably connected inside the storage bin 1, a first motor 3 is fixed at the upper end of the hollow shaft 2, the first motor 3 is fixedly connected to the storage bin 1, a hollow rod 4 is fixed at the lower end of the hollow shaft 2, the hollow rod 4 is communicated with the hollow shaft 2, a plurality of dust suction ports 19 are provided at the lower end of the hollow rod 4, a sealing mechanism is arranged inside the hollow rod 4, a scraping rod 7 is fixed at the lower end of the hollow rod 4, an air extraction mechanism is arranged on the hollow shaft 2, a discharge pipe is fixed at the lower end of the storage bin 1, and a switching mechanism is arranged on the discharge pipe.

[0028] Open the discharge pipe through the switching mechanism to pour out the metal powder in the storage bin 1. When all the metal powder in the storage bin 1 is poured out, excess metal powder will remain at the bottom of the storage bin 1. Start the first motor 3 to drive the hollow shaft 2 to rotate. The hollow shaft 2 drives the hollow rod 4 to rotate. Through the air extraction mechanism, the metal powder is sucked into the hollow rod 4 through the dust suction ports 19 and then enters the hollow shaft 2 for centralized treatment. The scraping rod 7 can scrape the metal powder adhered to the bottom of the storage bin 1 clean. When cleaning is not required, the dust suction ports 19 are closed through the sealing mechanism.

[0029] The air extraction mechanism includes a fan 21 fixed inside the hollow shaft 2, a dust-proof net 5 is fixed on the hollow shaft 2, air outlet holes 22 are provided on the outer wall of the hollow shaft 2, a hollow cover 20 communicated with the air outlet holes 22 is fixed on the outer wall of the hollow shaft 2, the upper end of the hollow cover 20 penetrates through the storage bin 1, an outlet is provided at the lower end of the hollow shaft 2, and a lid 6 is detachably arranged on the outlet.

[0030] With the above structure, by installing the fan 21 and starting the fan 21, the metal powder is sucked into the hollow rod 4 through the dust suction ports 19 and then enters the hollow shaft 2. After cleaning the metal powder in the storage bin 1, open the lid 6 to clean the metal powder in the hollow shaft 2, realizing the cleaning of the excess metal powder in the storage bin 1.

[0031] The sealing mechanism includes two second motors 8 fixed to the upper end of the inner wall of the hollow rod 4. A lead screw 9 is fixed to the output shaft end of the second motor 8. A threaded column 10 is fixed to the lead screw 9. A sealing cover 11 is fixed to the lower end of the threaded column 10.

[0032] With the above structure, by installing the sealing cover 11 and starting the second motor 8 to drive the lead screw 9 to rotate, the threaded column 10 on the lead screw 9 drives the sealing cover 11 to move up and down, realizing the sealing of the dust suction port 19.

[0033] The switching mechanism includes a ring 12 fixed to the discharge pipe. A hollow circular block 13 is rotatably connected inside the ring 12. Two notches 14 are provided at corresponding positions of the ring 12 and the hollow circular block 13. A long pipe 15 is fixedly connected to the lower notch 14 of the ring 12. A driving mechanism is provided between the long pipe 15 and the hollow circular block 13.

[0034] With the above structure, by installing the hollow circular block 13 and realizing the rotation of the hollow circular block 13 through the driving mechanism, the two notches 14 on the hollow circular block 13 are made to correspond to the two notches 14 on the ring 12, allowing the metal powder to be discharged. When the two notches 14 on the hollow circular block 13 are staggered from the two notches 14 on the ring 12, the discharge of the metal powder can be stopped.

[0035] The driving mechanism includes a third motor 16 fixed to the long pipe 15. A first gear 17 is fixed to the output shaft end of the third motor 16. A fixed column is fixed to the hollow circular block 13, and a second gear 18 is fixed to the fixed column. The first gear 17 is meshed with the second gear 18.

[0036] With the above structure, by installing the first gear 17 and the second gear 18 and starting the third motor 16 to drive the first gear 17 to rotate, the first gear 17 drives the second gear 18 to rotate, and the second gear 18 drives the hollow circular block 13 to rotate, realizing the control of the feeding and stopping of the metal powder.

[0037] The working principle of the present utility model: Start the third motor 16 to drive the first gear 17 to rotate. The first gear 17 drives the second gear 18 to rotate, and the second gear 18 drives the hollow circular block 13 to rotate, causing the metal powder in the storage bin 1 to pour out. When all the metal powder in the storage bin 1 has been poured out, there will be excess metal powder remaining at the bottom of the storage bin 1. Start the first motor 3 to drive the hollow shaft 2 to rotate, and the hollow shaft 2 drives the hollow rod 4 to rotate. Start the blower 21 to suck in through the dust suction port 19 into the hollow rod 4 and then into the hollow shaft 2. After cleaning the metal powder in the storage bin 1, open the lid 6 to clean the metal powder in the hollow shaft 2.

[0038] In summary, through the hollow rod, the function of cleaning the excess metal powder remaining at the bottom of the container can be achieved after all the metal powder in the container has been used up.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A feeding mechanism for injection molding of metal products, comprising a storage box (1), characterized in that: The material storage box (1) is provided with a material feed port, a hollow shaft (2) is rotatably connected inside the material storage box (1), a motor (3) is fixed to the upper end of the hollow shaft (2), the motor (3) is fixedly connected to the material storage box (1), a hollow rod (4) is fixed to the lower end of the hollow shaft (2), the hollow rod (4) is connected to the hollow shaft (2), a plurality of dust suction ports (19) are provided at the lower end of the hollow rod (4), a sealing mechanism is provided inside the hollow rod (4), a scraper rod (7) is fixed to the lower end of the hollow rod (4), an exhaust mechanism is provided on the hollow shaft (2), a discharge pipe is fixed to the lower end of the material storage box (1), and a switch mechanism is provided on the discharge pipe.

2. A feeding mechanism for metal product injection molding according to claim 1, characterized in that: The exhaust mechanism comprises a fan (21) fixed in a hollow shaft (2); a dust screen (5) is fixed on the hollow shaft (2); an air outlet (22) is provided on the outer wall of the hollow shaft (2); a hollow cover (20) connected to the air outlet (22) is fixed on the outer wall of the hollow shaft (2); the upper end of the hollow cover (20) passes through the material storage box (1); an outlet is provided at the lower end of the hollow shaft (2); and a detachable cover (6) is provided on the outlet.

3. A feeding mechanism for metal product injection molding according to claim 1, characterized in that: The sealing mechanism comprises two motors (8) fixed to the upper end of the inner wall of the hollow rod (4), a lead screw (9) being fixed to the output shaft end of the motor (8), a threaded column (10) being fixed to the lead screw (9), and a sealing cover (11) being fixed to the lower end of the threaded column (10).

4. A feeding mechanism for metal product injection molding according to claim 1, characterized in that: The switch mechanism comprises a circular ring (12) fixed on the discharge pipe, a hollow circular block (13) rotatably connected inside the circular ring (12), two notches (14) are provided at positions corresponding to the circular ring (12) and the hollow circular block (13), a long tube (15) is fixedly connected to the notch (14) at the lower end of the circular ring (12), and a driving mechanism is provided between the long tube (15) and the hollow circular block (13).

5. A feeding mechanism for metal product injection molding according to claim 4, characterized in that: The driving mechanism comprises a motor three (16) fixed on the long tube (15), a gear one (17) is fixed to the output shaft end of the motor three (16), a fixing column is fixed on the hollow circular block (13), a gear two (18) is fixed on the fixing column, and the gear one (17) is meshedly connected with the gear two (18).

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