A material feeding device

Abstract

This invention belongs to the technical field of material feeding equipment, and particularly relates to a material feeding device, including a frame, a weighing mechanism, and a feeding mechanism. The feeding mechanism includes a material cylinder, a first driving device, a second driving device, and a pull-back device. The material cylinder includes a cylinder body and a material inlet adjusting component. The cylinder body has an inlet and a outlet. The material inlet adjusting component is inserted into the outlet, forming a feeding gap between the material inlet adjusting component and the outlet. The first driving device drives the material inlet adjusting component to move, thereby adjusting the width of the feeding gap. A container is positioned directly opposite the outlet to receive material falling from the outlet. The cylinder body includes a mounting part, which is movably mounted on the frame. The second driving device is connected to the frame and can drive the cylinder body to swing away from the frame. The pull-back device is used to pull the cylinder body. The second driving device and the pull-back device cooperate to drive the cylinder body to swing, thereby causing the material inside the cylinder to sway within the cylinder and preventing material from clogging the outlet.

Description

Technical Field

[0001] This invention belongs to the technical field of material feeding equipment, and particularly relates to a material feeding device. Background Technology

[0002] Material feeding equipment can dispense the required amount of raw material powder into a container during production or experimental powder dispensing.

[0003] An existing material feeding device includes a weighing mechanism and a feeding mechanism. The weighing mechanism includes a weighing balance and a container placed on the weighing balance to receive the material in the feeding mechanism. The weighing balance is used to weigh the material. The feeding mechanism includes a material cylinder and a mixer installed in the material cylinder. The feeding port of the material cylinder is positioned directly opposite the container. The mixer is used to break up the material in the material cylinder so that the material falls from the feeding port into the container.

[0004] Existing material feeding equipment, although the mixer can break up the lumpy material in the barrel, may gradually compact the material near the discharge port during the mixing process, causing blockage at the discharge port and affecting normal material feeding. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a material feeding device that addresses the problem that material may clog the feed inlet of the material cylinder in existing material feeding devices.

[0006] To solve the above-mentioned technical problems, this invention provides a material feeding device, including a frame, a weighing mechanism, and a feeding mechanism. The weighing mechanism includes a weighing balance installed on the frame and a container placed on the weighing balance. The weighing balance is used to weigh the material. The feeding mechanism includes a material cylinder, a first driving device, a second driving device, and a pull-back device. The material cylinder includes a cylinder body and a material outlet adjusting component. The upper end of the cylinder body is provided with a feeding port, and the lower end of the cylinder body is provided with a feeding port. The material outlet adjusting component is inserted into the feeding port, and a feeding gap is formed between the material outlet adjusting component and the feeding port. The width of the feeding gap can be adjusted by driving the material outlet adjusting component to move through the first driving device. The container is positioned directly opposite the feeding port and is used to receive the material falling from the feeding port.

[0007] The cylinder includes a mounting part, which is movably mounted on the frame. The second driving device is connected to the frame and can drive the cylinder to swing away from the frame. The pull-back device is disposed between the cylinder and the frame and is used to pull the cylinder closer to the frame.

[0008] Optionally, a rebound striking element is further provided between the frame and the cylinder. The rebound striking element is used to contact the cylinder during the process of the cylinder swinging towards the frame, and to strike the cylinder so as to make the cylinder vibrate.

[0009] Optionally, the material cylinder further includes a plurality of crushed material balls, which are placed in the cylinder and can roll freely in the cylinder to impact and grind the material in the cylinder.

[0010] Optionally, the outer peripheral surface shape of the feed inlet adjusting member is consistent with the shape of the feed outlet, and the cross-sectional area of ​​the feed inlet adjusting member gradually increases from top to bottom;

[0011] The material cylinder also includes a cylinder cover, which is disposed on the feed inlet. The cylinder cover has a through hole. The first driving device includes a first driving motor, a driving shaft, and a transition rod. The driving shaft extends into the cylinder body through the through hole. One end of the driving shaft extending into the cylinder body is hinged to the end of the transition rod away from the feed inlet adjusting member. The end of the transition rod near the feed inlet adjusting member is connected to the feed inlet adjusting member. The first driving motor drives the driving shaft to move downward, thereby causing the transition rod and the feed inlet adjusting member to move downward.

[0012] Optionally, the end of the drive shaft away from the feed inlet adjusting member is provided with a stop step, and the first drive device further includes a first elastic member. The first elastic member is disposed between the cylinder cover and the stop step. The first elastic member drives the drive shaft to rise by means of elastic force, so as to drive the transition rod and the feed inlet adjusting member to move upward.

[0013] Optionally, the first elastic element is a spring, which is sleeved on the drive shaft. One end of the spring is connected to the stop step, and the other end of the spring is connected to the cylinder cover.

[0014] Optionally, the cross-sectional area of ​​the bottom end of the feed inlet adjusting member is larger than the area of ​​the feed outlet, and the bottom end of the feed inlet adjusting member is used to block the feed outlet.

[0015] Optionally, the frame includes a mounting plate, the second driving device includes an impact member and a second driving motor mounted on the mounting plate, the second driving motor is located at a lower position on the waist of the cylinder, the impact member is connected to the output shaft of the second driving motor, and the second driving motor drives the impact member to impact the cylinder, so that the cylinder swings away from the mounting plate.

[0016] Optionally, the pull-back device includes a second elastic element, which pulls the cylinder toward the mounting plate by means of elastic force.

[0017] Optionally, the second elastic element is a tension spring, and two tension springs are provided. The two tension springs are respectively arranged on both sides of the cylinder. One end of the tension spring is connected to the cylinder, and the other end is connected to the mounting plate.

[0018] According to the material feeding device of the present invention, the second driving device and the pull-back device cooperate to drive the cylinder to perform periodic oscillation. When the cylinder oscillates, under the action of inertia, the cylinder can impact the material inside the cylinder, which can drive the material inside the cylinder to shake inside the cylinder, avoiding material blockage of the feeding port. In addition, the force generated when the cylinder oscillates can also break up clumps of material and improve feeding efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a material feeding device provided in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Another perspective;

[0021] Figure 3 for Figure 1 An assembly diagram of the first drive motor, drive shaft, transition rod, feed inlet adjustment component, and crushed material balls.

[0022] The reference numerals in the accompanying drawings are as follows: 1. Frame; 2. Base; 3. Mounting platform; 4. Mounting plate; 5. Weighing balance; 6. Container; 7. Material cylinder; 8. Cylinder body; 9. Feed inlet; 10. Discharge outlet; 11. Cylinder cover; 12. Mounting part; 13. First drive motor; 14. Tension spring; 15. Second drive motor; 16. Impact component; 17. Rebound striking component; 18. Drive shaft; 19. Stopping step; 20. First hinge hole; 21. Second hinge hole; 22. Spring; 23. Transition rod; 24. Material inlet adjusting component; 25. Crushed material ball; 26. Perforation. Detailed Implementation

[0023] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0024] like Figures 1 to 3As shown, an embodiment of the present invention provides a material feeding device, including a frame 1, a weighing mechanism, and a feeding mechanism. The weighing mechanism includes a weighing balance 5 installed on the frame 1 and a container 6 placed on the weighing balance 5. The weighing balance 5 is used to weigh the material. The feeding mechanism includes a material cylinder 7, a first driving device, a second driving device, and a pull-back device. The material cylinder 7 includes a cylinder body 8 and a material outlet adjusting member 24. The upper end of the cylinder body 8 is provided with a feeding port 9, and the lower end of the cylinder body 8 is provided with a feeding port 10. The material outlet adjusting member 24 is inserted into the feeding port 10, and a feeding gap is formed between the material outlet adjusting member 24 and the feeding port 10. The width of the feeding gap can be adjusted by driving the material outlet adjusting member 24 to move through the first driving device. The container 6 is positioned directly opposite the feeding port 10 and is used to receive the material falling from the feeding port 10.

[0025] The cylinder 8 includes a mounting part 12, which is movably mounted on the frame 1. The second driving device is connected to the frame 1 and can drive the cylinder 8 to swing away from the frame 1. The pull-back device is disposed between the cylinder 8 and the frame 1 and is used to pull the cylinder 8 towards the frame 1.

[0026] In one embodiment, a rebound striking element 17 is further provided between the frame 1 and the cylinder 8. The rebound striking element 17 is used to contact the cylinder 8 during its swing toward the frame 1, striking the cylinder 8 to cause it to vibrate. The rebound striking element 17 is a rebound striking column, which is fixedly installed on the frame 1. When the cylinder 8 contacts the rebound striking column during its swing toward the frame 1, the rebound striking column strikes the cylinder 8, causing it to vibrate. The vibrational force can be transmitted to the material inside the cylinder 8, breaking up any clumps of material.

[0027] In one embodiment, the feed cylinder 7 further includes a plurality of crushed material balls 25, which are placed inside the cylinder body 8. The crushed material balls 25 are able to roll freely within the cylinder body 8, impacting and grinding the material inside the cylinder body 8. When the cylinder body 8 oscillates, the crushed material balls 25 can roll freely inside the cylinder body 8, crushing and impacting the material inside the cylinder body 8 during this rolling process, helping to break up agglomerated materials.

[0028] In one embodiment, the outer peripheral surface shape of the feed inlet adjusting member 24 is consistent with the shape of the feed outlet 10. The cross-sectional area of ​​the feed inlet adjusting member 24 gradually increases from top to bottom, and the cross-sectional area of ​​the bottom end of the feed inlet adjusting member 24 is larger than the area of ​​the feed outlet 10. The bottom end of the feed inlet adjusting member 24 is used to block the feed outlet 10. When feeding from the feed cylinder 7 is not required, the bottom end of the feed inlet adjusting member 24 can block the feed outlet 10. At this time, the feeding gap between the feed inlet adjusting member 24 and the feed outlet 10 is completely blocked, preventing the material in the feed cylinder 7 from continuing to fall.

[0029] The material cylinder 7 also includes a cylinder cover 11, which covers the feed inlet 9. The cylinder cover 11 has a through hole 26. The first driving device includes a first driving motor 13, a driving shaft 18, and a transition rod 23. The driving shaft 18 extends into the cylinder 8 through the through hole 26. One end of the driving shaft 18 extending into the cylinder 8 is hinged to the end of the transition rod 23 away from the feed inlet adjusting member 24. The end of the transition rod 23 near the feed inlet adjusting member 24 is connected to the feed inlet adjusting member 24. The first driving motor 13 drives the driving shaft 18 to move downward, so as to move the transition rod 23 and the feed inlet adjusting member 24 downward. The lower end of the drive shaft 18 is provided with a first hinge hole 20, and the upper end of the transition rod 23 is provided with a second hinge hole 21. By inserting hinge pins through the first hinge hole 20 and the second hinge hole 21, the transition rod 23 is hinged to the lower end of the drive shaft 18. Since the transition rod 23 is hinged to the drive shaft 18, the transition rod 23 can swing relative to the drive shaft 18. When the cylinder 8 shakes, the angle between the transition rod 23 and the drive shaft 18 can change with the swing amplitude of the cylinder 8, avoiding the cylinder 8 from breaking the drive shaft 18 and the transition rod 23, and improving the reliability of the first drive device.

[0030] In one embodiment, a stop step 19 is provided at the end of the drive shaft 18 away from the feed inlet adjusting member 24. The first driving device further includes a first elastic member, which is disposed between the cylinder cover 11 and the stop step 19. The first elastic member drives the drive shaft 18 to rise by means of elastic force, thereby causing the transition rod 23 and the feed inlet adjusting member 24 to move upward. The drive shaft 18 is detached from the first drive motor 13 and is driven to rise by the first elastic member, which has a simple structure and is easy to disassemble and assemble.

[0031] In one embodiment, the first elastic element is a spring 22, which is sleeved on the drive shaft 18. One end of the spring 22 is connected to the stop step 19, and the other end is connected to the cylinder cover 11. When the first drive motor 13 drives the drive shaft 18 downward, the stop step 19 compresses the spring 22 downward, and the spring 22 accumulates elastic potential energy. When the first drive motor 13 no longer applies downward pressure to the drive shaft 18, the spring 22 releases its elastic potential energy, generating an upward driving force on the stop step 19, driving the drive shaft 18 upward.

[0032] In one embodiment, the frame 1 includes a mounting plate 4. The second driving device includes an impact member 16 and a second drive motor 15 mounted on the mounting plate 4. The second drive motor 15 is located at a lower position near the waist of the cylinder 8. The impact member 16 is connected to the output shaft of the second drive motor 15. The second drive motor 15 drives the impact member 16 to impact the cylinder 8, causing the cylinder 8 to swing away from the mounting plate 4. The output shaft of the second drive motor 15 can extend towards the cylinder 8 to drive the impact member 16 to impact the cylinder 8, thereby generating an impact force that forces the cylinder 8 to swing away from the mounting plate 4. In this embodiment, the extension and retraction frequency of the output shaft of the second drive motor 15 is much greater than the swing frequency of the cylinder 8. After the second drive motor 15 drives the impact member 16 to impact the cylinder 8, it quickly retracts, allowing the cylinder 8 to swing independently.

[0033] In one embodiment, the pull-back device includes a second elastic element, which pulls the cylinder 8 toward the mounting plate 4 by means of elastic force. The elastic force of the second elastic element can generate a pulling force on the cylinder 8 at all times. Once the swing amplitude of the cylinder 8 reaches the swing limit, the second elastic element can quickly pull the cylinder 8 back, thereby increasing the swing frequency of the cylinder 8.

[0034] In one embodiment, the second elastic element is a tension spring 14. Two tension springs 14 are provided, and the two tension springs 14 are respectively arranged on both sides of the cylinder 8. One end of the tension spring 14 is connected to the cylinder 8, and the other end is connected to the mounting plate 4. The tension spring 14 has a simple structure and is easy to design and install.

[0035] In one embodiment, the frame 1 further includes a base 2 and a mounting platform 3, the mounting plate 4 and the first drive motor 13 are mounted on the mounting platform 3, and the weighing balance 5 is mounted on the base 2.

[0036] The material feeding device of this invention operates on the following principle:

[0037] When feeding material, the material is first placed into the cylinder 8 through the feed inlet 9, then the cylinder cover 11 is closed, and then the first drive motor 13 is started. The first drive motor 13 drives the drive shaft 18 to move downward, and the drive shaft 18 drives the transition rod 23 and the feed inlet adjusting component 24 to move downward, so as to form a feeding gap of the required width between the feed inlet adjusting component 24 and the feed outlet 10, so that the feeding flow rate meets the requirements. Then, the second drive motor 15 drives the impact component 16 to impact the cylinder 8, so that the cylinder 8 swings. When the cylinder 8 swings back and contacts the rebound striking component 17, The rebound striking element 17 strikes the cylinder 8, causing the cylinder 8 to vibrate. When the cylinder 8 swings and vibrates, the crushed material balls 25 inside the cylinder 8 will roll in the cylinder 8 to crush and impact the agglomerated material. The material in the cylinder 8 falls into the container 6 from the feeding gap. The weighing balance 5 weighs the material in the container 6 in real time. When the weight reaches the requirement, the first drive motor 13 retracts. Driven by the spring 22, the drive shaft drives the transition rod 23 and the material outlet adjustment element 24 to rise, thereby causing the material outlet adjustment element 24 to block the feeding port 10.

[0038] According to the material feeding device of the present invention, the second driving device and the pull-back device cooperate to drive the cylinder 8 to perform periodic oscillation. When the cylinder 8 oscillates, under the action of inertia, the cylinder 8 can impact the material inside the cylinder 8, which can drive the material inside the cylinder 8 to shake inside the cylinder 8, avoiding material blockage of the feed port 10. In addition, the force generated when the cylinder 8 oscillates can also break up clumps of material and improve feeding efficiency.

[0039] In other embodiments, the first driving device includes a driving cylinder that drives the driving shaft 18 to descend.

[0040] In other embodiments, the second driving device is an electric push rod, which drives the impactor 16 to impact the cylinder 8.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A material feeding device, characterized in that, The device includes a frame (1), a weighing mechanism, and a feeding mechanism. The weighing mechanism includes a weighing balance (5) installed on the frame (1) and a container (6) placed on the weighing balance (5). The weighing balance (5) is used to weigh the material. The feeding mechanism includes a material cylinder (7), a first driving device, a second driving device, and a pull-back device. The material cylinder (7) includes a cylinder body (8) and a material outlet adjustment component (24). The upper end of the cylinder body (8) is provided with a feeding port (9), and the lower end of the cylinder body (8) is provided with a feeding port (10). The material outlet adjustment component (24) is inserted into the feeding port (10), and a feeding gap is formed between the material outlet adjustment component (24) and the feeding port (10). The material outlet adjustment component (24) is driven to move by the first driving device, which can adjust the width of the feeding gap. The container (6) is set directly opposite the feeding port (10) and is used to receive the material falling from the feeding port (10). The cylinder (8) includes a mounting part (12), which is movably mounted on the frame (1). The second driving device is connected to the frame (1) and can drive the cylinder (8) to swing away from the frame (1). The pull-back device is located between the cylinder (8) and the frame (1) and is used to pull the cylinder (8) towards the frame (1). It can drive the cylinder (8) to swing periodically. When the cylinder (8) swings, under the action of inertia, the cylinder (8) can impact the material inside the cylinder (8) and can drive the material inside the cylinder (8) to shake inside the cylinder (8) to avoid the material blocking the discharge port (10). The outer peripheral surface shape of the feed inlet adjusting member (24) is consistent with the shape of the feed outlet (10), and the cross-sectional area of ​​the feed inlet adjusting member (24) gradually increases from top to bottom; The material cylinder (7) also includes a cylinder cover (11), which covers the feed inlet (9). The cylinder cover (11) has a through hole (26). The first driving device includes a first driving motor (13), a driving shaft (18), and a transition rod (23). The driving shaft (18) extends into the cylinder (8) through the through hole (26). One end of the driving shaft (18) extending into the cylinder (8) is hinged to the end of the transition rod (23) away from the feed inlet adjustment member (24). The end of the transition rod (23) near the feed inlet adjustment member (24) is connected to the feed inlet adjustment member (24). The first driving motor (13) drives the driving shaft (18) to move downward, so as to drive the transition rod (23) and the feed inlet adjustment member (24) to move downward. The material cylinder (7) also includes a plurality of crushing balls (25), which are placed in the cylinder (8). The crushing balls (25) can roll freely in the cylinder (8) to impact and grind the material in the cylinder (8).

2. The material feeding device according to claim 1, characterized in that, A rebound striking element (17) is also provided between the frame (1) and the cylinder (8). The rebound striking element (17) is used to contact the cylinder (8) during the swinging process of the cylinder (8) toward the frame (1) and to strike the cylinder (8) so that the cylinder (8) vibrates.

3. The material feeding device according to claim 1, characterized in that, The drive shaft (18) is provided with a stop step (19) at one end away from the feed port adjustment component (24). The first drive device also includes a first elastic component, which is disposed between the cylinder cover (11) and the stop step (19). The first elastic component drives the drive shaft (18) to rise by means of elastic force, so as to drive the transition rod (23) and the feed port adjustment component (24) to move upward.

4. The material feeding device according to claim 3, characterized in that, The first elastic element is a spring (22), which is sleeved on the drive shaft (18). One end of the spring (22) is connected to the stop step (19), and the other end of the spring (22) is connected to the cylinder cover (11).

5. The material feeding device according to claim 3, characterized in that, The cross-sectional area of ​​the bottom end of the feed inlet adjusting member (24) is larger than the area of ​​the feed outlet (10), and the bottom end of the feed inlet adjusting member (24) is used to block the feed outlet (10).

6. The material feeding device according to claim 1, characterized in that, The frame (1) includes a mounting plate (4), and the second driving device includes an impact member (16) and a second driving motor (15) mounted on the mounting plate (4). The second driving motor (15) is located at the lower waist of the cylinder (8). The impact member (16) is connected to the output shaft of the second driving motor (15). The second driving motor (15) drives the impact member (16) to impact the cylinder (8) so that the cylinder (8) swings away from the mounting plate (4).

7. The material feeding device according to claim 6, characterized in that, The pull-back device includes a second elastic element, which pulls the cylinder (8) toward the mounting plate (4) by means of elastic force.

8. The material feeding device according to claim 7, characterized in that, The second elastic element is a tension spring (14). There are two tension springs (14). The two tension springs (14) are respectively arranged on both sides of the cylinder (8). One end of the tension spring (14) is connected to the cylinder (8), and the other end is connected to the mounting plate (4).

Images