Packing device for plastic coating of balancing weight of washing machine
By designing an automatic dredging and slurry-propelling filling device, the problem of blockage in the discharge pipe of traditional equipment was solved, achieving automatic dredging and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional packing equipment is prone to blockage in the discharge pipe during use, requiring manual unblocking and resulting in low production efficiency.
A filling device for plastic-coated counterweights in washing machines has been designed, comprising a dredging mechanism, a scraping mechanism, and a fixing mechanism. It utilizes components such as electric push rods, lead screws, and motors to automatically dredge and push the slurry, thus preventing blockages.
It achieves automatic unblocking of the discharge pipe, avoiding manual intervention and improving production efficiency and convenience.
Smart Images

Figure CN223981937U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of plastic-coated filler for washing machine counterweights, and in particular to a filler device for plastic-coated counterweights in washing machines. Background Technology
[0002] Washing machines typically have internal counterweights to provide weight and reduce vibration and shaking during operation, ensuring stability and balance. Currently, counterweights are generally made by mixing materials such as cement, iron ore, gravel, sand, and water in specific proportions to create a slurry, which is then pressed, cast, coated, cured, and maintained. Coating is a crucial step, where the slurry is filled into a plastic-coated part (a plastic shell) of the counterweight. This process is often called "filling," and the counterweight is then cured and formed.
[0003] The existing packing equipment has the following problems when in use:
[0004] Traditional packing equipment can experience blockages in the discharge pipe during use. When this happens, manual unblocking with tools is required, which is troublesome and reduces production efficiency. Utility Model Content
[0005] The purpose of this invention is to solve the problem that the discharge pipe of traditional filling equipment in the prior art becomes blocked during use. When this happens, manual unblocking with tools is required, which is troublesome and reduces production efficiency. Therefore, this invention proposes a plastic-coated filling device for washing machine counterweights.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A filling device for plastic coating of a washing machine counterweight includes a concave plate for placing slurry, a bracket fixedly provided on both sides of the concave plate for supporting the concave plate, an opening at the bottom of one side of the concave plate with a conical hopper welded to the inner wall of the opening, a discharge pipe for discharging slurry fixedly provided at the bottom of the conical hopper and connected to it, a fixing frame welded to the top of the concave plate, a fixing plate fixedly provided on the inner walls of both sides of the bracket, a concave seat fixedly provided on the top of the fixing plate, the concave seat being concave, and an adjusting plate for placing the plastic-coated shell slidably connected to the inner wall of the concave seat;
[0008] A dredging mechanism, mounted on a fixed frame, is used to unclog the drain pipe when it is blocked.
[0009] The scraping mechanism, mounted on a fixed frame, is used to push the slurry in the concave plate into the conical hopper.
[0010] In one possible design, the unblocking mechanism includes an electric push rod and an unblocking rod. One end of the electric push rod is fixedly connected to the top of the fixed frame, and the telescopic part passes through the top of the fixed frame and is fixedly connected to the top of the unblocking rod. The unblocking rod is located directly above the discharge pipe, and the diameter of the unblocking rod is the same as the inner diameter of the discharge pipe.
[0011] In one possible design, the scraping mechanism includes a box body, a lead screw, a moving block, a connecting block, and a scraper. The top of the box body is fixedly connected to the top inner wall of the fixed frame, and the two ends of the lead screw are rotatably connected to the two inner walls of the box body, respectively.
[0012] A first motor for driving a lead screw to rotate is fixedly installed on one side of the box body. The output end of the first motor passes through one side of the box body and is fixedly connected to one end of the lead screw. The top of the moving block is slidably connected to the inner top wall of the box body. A lead screw nut is embedded in one side of the moving block and is threadedly connected to the lead screw. The top of the connecting block is fixedly connected to the bottom of the moving block. An insert is fixedly installed on the top of the scraper. The scraper is located inside the concave plate. A fixing mechanism for fixing the insert is provided on the connecting block.
[0013] In one possible design, the fixing mechanism includes a U-shaped frame, a plug rod, and a spring. One side of the U-shaped frame is fixedly connected to one side of the connecting block. A slot is provided on one side of the connecting block, and the plug rod is inserted into the slot. A moving hole is provided on one side of the U-shaped frame and one side of the connecting block to facilitate the movement of the plug rod. The outer side of the plug rod is slidably connected to the inner wall of the moving hole. A fixing ring is fixedly sleeved on the outer side of the plug rod. The spring is sleeved on the plug rod. One end of the spring is fixedly connected to one side of the fixing ring, and the other end is fixedly connected to the inner wall of one side of the U-shaped frame. A plug hole is provided on one side of the plug block, and one end of the plug rod is inserted into the plug hole, and the other end is fixedly provided with a handle to facilitate pulling the plug rod.
[0014] In one possible design, the adjusting plate has a groove, and a nut is fixedly installed on the inner wall of the groove. The nut is internally threaded with a threaded rod for adjusting the height of the adjusting plate, and the bottom end of the threaded rod is rotatably connected to the bottom inner wall of the concave seat. The bottom of the concave seat has a through hole, and a second motor for driving the threaded rod to rotate is fixedly installed on the top inner wall of the through hole. The output end of the second motor passes through the concave seat and is fixedly connected to the bottom end of the threaded rod.
[0015] In one possible design, a limiting ring for limiting the position of the unblocking rod is fixedly sleeved on the unblocking rod.
[0016] In this application, during use, first install the scraper, pull the handle on the insert rod to compress the spring, causing one end of the insert rod to move into the moving hole of the connecting block. Place the scraper inside the concave plate, insert the insert block into the slot of the connecting block, release the handle, and the spring pushes the insert rod into the insertion hole of the insert block, thus fixing the scraper and facilitating disassembly and cleaning. After installation, the bottom of the scraper is in contact with the inner wall of the concave plate. Initially, the unblocking rod is in the discharge pipe. Adjust the height of the adjusting plate according to the size of the plastic-coated shell, start the second motor, and drive the threaded rod to rotate at the output end. Due to the threaded rod and the screw... The female threaded connection, with the nut fixed in the groove, causes the adjusting plate to move up and down with the rotation of the threaded rod. Once the desired height is reached, the second motor stops. Place the plastic-coated outer shell on the adjusted plate, aligning the inlet of the shell with the discharge pipe, or adjust the height of the adjusting plate so that the discharge pipe is inserted into the inlet of the shell (where the inlet is larger than the diameter of the discharge pipe). Then, pour the plastic coating slurry for the washing machine counterweight into the concave plate. Start the electric push rod; its telescopic part extends and retracts, disengaging the unblocking rod from the discharge pipe, opening the discharge pipe channel. Start the second motor. A motor drives a lead screw to rotate. Because the lead screw nut on the moving block is threadedly connected to the lead screw, the moving block moves along the lead screw. The moving block drives the connecting block and scraper to move. The scraper pushes the slurry in the concave plate into the conical hopper, ensuring the slurry smoothly enters the discharge pipe. The slurry enters the discharge pipe through the conical hopper and then into the plastic-coated outer shell. If the discharge pipe becomes blocked during use, the telescopic part of the electric push rod pushes the unblocking rod downwards. The diameter of the unblocking rod is the same as the inner diameter of the discharge pipe, effectively clearing the blockage. The unblocking rod pushes the slurry in the discharge pipe, thus... To unclog the discharge pipe and prevent blockage, it eliminates the need for personnel to use tools, making it more convenient and efficient. The limit ring can limit the downward distance of the unclogging rod, preventing it from going too far. After the filling is finished, the discharge pipe can be sealed by the unclogging rod and the limit ring. The first and second motors can be stepper motors, which can rotate in both directions. The type and material of the lead screw can be selected according to actual needs. The first motor, the second motor, and the electric push rod require an external controller and an external power supply for operation.
[0017] In this utility model, the filling device for plastic-coated counterweight of a washing machine, through a clearing mechanism, the telescopic part of the electric push rod pushes the clearing rod downward. The diameter of the clearing rod is the same as the inner diameter of the discharge pipe, which can effectively clear blockages. The clearing rod pushes the slurry in the discharge pipe, thereby clearing the discharge pipe and avoiding blockages. There is no need for personnel to use tools to clear the blockage, which is more convenient and improves efficiency.
[0018] In this utility model, the filling device for plastic-coated counterweights of a washing machine uses a scraping mechanism to start a first motor, which drives the lead screw to rotate. Since the lead screw nut on the moving block is threadedly connected to the lead screw, the moving block moves along the lead screw. The moving block drives the connecting block and scraper to move, and the scraper pushes the slurry in the concave plate into the conical hopper, ensuring that the slurry smoothly enters the discharge pipe.
[0019] In this utility model, the filling device for plastic coating of washing machine counterweight block, through a fixing mechanism, pulls the handle on the plug rod to compress the spring, causing one end of the plug rod to move into the moving hole of the connecting block, placing the scraper in the concave plate, inserting the plug block into the slot of the connecting block, releasing the handle, and the spring pushes the plug rod into the insertion hole of the plug block, thereby fixing the scraper and facilitating disassembly.
[0020] In this invention, the unblocking mechanism can unclog the discharge pipe to avoid blockage, eliminating the need for personnel to use tools for unblocking, making it more convenient and efficient. The scraping mechanism can push the slurry in the concave plate into the conical hopper to ensure that the slurry enters the discharge pipe smoothly. The fixing mechanism can fix the scraper and facilitate disassembly and cleaning. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the main structure of a filling device for plastic coating of a washing machine counterweight according to the present invention;
[0022] Figure 2 This is a side view of the filling device for plastic coating of a washing machine counterweight according to the present invention.
[0023] Figure 3 This is a front view structural diagram of a filling device for plastic coating of a washing machine counterweight according to the present invention;
[0024] Figure 4 This is a schematic diagram of the fixing mechanism of a plastic-coated filler device for a washing machine counterweight according to the present invention.
[0025] In the diagram: 1. Concave plate; 2. Bracket; 3. Fixing frame; 4. Electric push rod; 5. Box body; 6. Moving block; 7. Connecting block; 8. Inserting block; 9. Scraper; 10. Unblocking rod; 11. Adjusting plate; 12. Concave seat; 13. Conical bucket; 14. Limiting ring; 15. First motor; 16. Lead screw; 17. Discharge pipe; 18. Groove; 19. Threaded rod; 20. Nut; 21. Second motor; 22. U-shaped frame; 23. Inserting rod; 24. Spring. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] Example 1
[0028] Reference Figure 1-4 A filling device includes: a concave plate 1 for placing slurry. A support 2 is fixedly mounted on both sides of the concave plate 1 for supporting it. An opening is formed at the bottom of one side of the concave plate 1, and a conical hopper 13 is welded to the inner wall of the opening. A discharge pipe 17 is fixedly mounted at the bottom of the conical hopper 13, communicating with the conical hopper 13 for discharging the slurry. A fixing frame 3 is welded to the top of the concave plate 1. A fixing plate is fixedly mounted on the inner walls of both sides of the support 2, and a concave seat 12 is fixedly mounted on the top of the fixing plate. The concave seat 12 is concave, and an adjusting plate 11 is slidably connected to its inner wall for holding a plastic-coated shell.
[0029] A clearing mechanism is mounted on the mounting bracket 3 and is used to clear blockages in the discharge pipe 17. The clearing mechanism includes an electric push rod 4 and a clearing rod 10. One end of the electric push rod 4 is fixedly connected to the top of the mounting bracket 3, and its telescopic part passes through the top of the mounting bracket 3 and is fixedly connected to the top end of the clearing rod 10. The clearing rod 10 is located directly above the discharge pipe 17, and the diameter of the clearing rod 10 is the same as the inner diameter of the discharge pipe 17 to effectively clear blockages.
[0030] Furthermore, a limiting ring 14 is fixedly sleeved on the unblocking rod 10 to limit the unblocking rod 10 and prevent the unblocking rod 10 from moving too far downward and damaging the discharge pipe 17 or causing other unnecessary trouble.
[0031] A scraping mechanism is mounted on the fixed frame 3 to push the slurry in the concave plate 1 into the conical hopper 13. The scraping mechanism includes a box body 5, a lead screw 16, a moving block 6, a connecting block 7, and a scraper 9. The top of the box body 5 is fixedly connected to the inner top wall of the fixed frame 3. The two ends of the lead screw 16 are rotatably connected to the inner walls of the two sides of the box body 5, respectively. A first motor 15 is fixedly mounted on one side of the box body 5 to drive the lead screw 16 to rotate. The output end of the first motor 15 passes through one side of the box body 5 and is fixedly connected to one end of the lead screw 16. The top of the moving block 6 is slidably connected to the inner top wall of the box body 5. A lead screw nut is embedded in one side of the moving block 6, and the lead screw nut is threadedly connected to the lead screw 16. When the first motor 15 drives the lead screw 16 to rotate, the moving block 6 moves along the lead screw 16. The top of the connecting block 7 is fixedly connected to the bottom of the moving block 6. An insert block 8 is fixedly mounted on the top of the scraper 9, and the scraper 9 is located inside the concave plate 1. The connecting block 7 is equipped with a fixing mechanism for fixing the insert block 8.
[0032] The fixing mechanism includes a U-shaped frame 22, a plug rod 23, and a spring 24. One side of the U-shaped frame 22 is fixedly connected to one side of the connecting block 7. A slot is provided on one side of the connecting block 7, and the plug rod 8 is inserted into the slot. Moving holes are provided on both one side of the U-shaped frame 22 and one side of the connecting block 7 to facilitate the movement of the plug rod 23. The outer side of the plug rod 23 is slidably connected to the inner wall of the moving hole. A fixing ring is fixedly fitted on the outer side of the plug rod 23, and the spring 24 is fitted onto the plug rod 23. One end of the spring 24 is fixedly connected to one side of the fixing ring, and the other end is fixedly connected to the inner wall of one side of the U-shaped frame 22. A plug hole is provided on one side of the plug block 8, one end of the plug rod 23 is inserted into the plug hole, and a pull handle is fixedly provided on the other end to facilitate pulling the plug rod 23. When the scraper 9 needs to be installed, pull the handle to compress the spring 24, move one end of the insert rod 23 into the moving hole of the connecting block 7, place the scraper 9 into the concave plate 1, insert the insert block 8 into the slot of the connecting block 7, release the handle, and the spring 24 pushes the insert rod 23 into the insertion hole of the insert block 8, thereby fixing the scraper 9. When the scraper 9 needs to be removed, simply reverse the operation.
[0033] This application is for use in the field of plastic-coated fillers for washing machine counterweights, but it can also be used in other fields applicable to this application.
[0034] Example 2
[0035] refer to Figure 1-4 An improvement based on Embodiment 1: A packing device for plastic-coated counterweights in washing machines, which is used in the field of plastic-coated packing for washing machine counterweights.
[0036] The adjusting plate 11 has a groove 18, and a nut 20 is fixedly installed on the inner wall of the groove 18. A threaded rod 19 is threadedly connected to the nut 20 for adjusting the height of the adjusting plate 11. The bottom end of the threaded rod 19 is rotatably connected to the bottom inner wall of the concave seat 12. The bottom of the concave seat 12 has a through hole, and a second motor 21 is fixedly installed on the top inner wall of the through hole for driving the threaded rod 19 to rotate. The output end of the second motor 21 passes through the concave seat 12 and is fixedly connected to the bottom end of the threaded rod 19. When it is necessary to adjust the height of the adjusting plate 11, the second motor 21 is started to drive the threaded rod 19 to rotate. Since the threaded rod 19 is threadedly connected to the nut 20, and the nut 20 is fixed in the groove 18, the adjusting plate 11 will move up and down as the threaded rod 19 rotates.
[0037] However, as is well known to those skilled in the art, the working principles and wiring methods of the first motor 15, the second motor 21, and the electric push rod 4 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.
[0038] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A filling device for molding a weight for a washing machine, characterized by comprising: The utility model provides a slurry placing device, which comprises a concave plate (1) for placing slurry, a same support (2) is fixedly arranged on both sides of the concave plate (1) for supporting the concave plate (1), an opening is formed in the bottom of one side of the concave plate (1), a conical hopper (13) is welded to the inner wall of the opening, a discharge pipe (17) for discharging slurry is fixedly arranged at the bottom of the conical hopper (13) and is in communication with the conical hopper (13), a fixing frame (3) is welded to the top of the concave plate (1), a same fixing plate is fixedly arranged on the inner wall of both sides of the support (2), a concave seat (12) is fixedly arranged on the top of the fixing plate, the concave seat (12) is concave, and an adjusting plate (11) for placing a plastic shell is slidably connected to the inner wall of the concave seat (12). A dredging mechanism is arranged on the fixing frame (3) for dredging when the discharge pipe (17) is blocked. A scraping mechanism is arranged on the fixing frame (3) for pushing slurry in the concave plate (1) into the conical hopper (13).
2. A filling device for molding a weight for a washing machine according to claim 1, wherein The dredging mechanism comprises an electric push rod (4) and a dredging rod (10), one end of the electric push rod (4) is fixedly connected to the top of the fixing frame (3), the telescopic part penetrates through the top of the fixing frame (3) and is fixedly connected to the top end of the dredging rod (10), the dredging rod (10) is located directly above the discharge pipe (17), and the diameter of the dredging rod (10) is the same as the inner diameter of the discharge pipe (17).
3. A filling device for molding a weight for a washing machine according to claim 1, wherein The scraping mechanism comprises a box body (5), a lead screw (16), a moving block (6), a connecting block (7) and a scraper (9), the top of the box body (5) is fixedly connected to the inner wall of the top of the fixing frame (3), and the two ends of the lead screw (16) are rotationally connected to the inner walls of the two sides of the box body (5). A first motor (15) is fixedly arranged on one side of the box body (5) for driving the lead screw (16) to rotate, the output end of the first motor (15) penetrates through one side of the box body (5) and is fixedly connected to one end of the lead screw (16), the top of the moving block (6) is slidably connected to the inner wall of the top of the box body (5), a lead screw nut is embedded in one side of the moving block (6), the lead screw nut is threadedly connected to the lead screw (16), the top of the connecting block (7) is fixedly connected to the bottom of the moving block (6), the top of the scraper (9) is fixedly provided with an insertion block (8), the scraper (9) is located in the concave plate (1), and a fixing mechanism for fixing the insertion block (8) is arranged on the connecting block (7).
4. A filling device for plastic coating of a balancing weight for a washing machine according to claim 3, characterized in that, The fixed mechanism comprises a U-shaped frame (22), a plug rod (23) and a spring (24), one side of the U-shaped frame (22) is fixedly connected with one side of a connecting block (7), one side of the connecting block (7) is provided with a slot, a plug block (8) is inserted into the slot, one side of the U-shaped frame (22) and one side of the connecting block (7) are both provided with a moving hole for facilitating the movement of the plug rod (23), the outer side of the plug rod (23) is slidably connected with the inner wall of the moving hole, the outer side of the plug rod (23) is fixedly sleeved with a fixing ring, the spring (24) is sleeved on the plug rod (23), one end of the spring (24) is fixedly connected with one side of the fixing ring, and the other end is fixedly connected with the inner wall of one side of the U-shaped frame (22), one side of the plug block (8) is provided with a plug hole, one end of the plug rod (23) is inserted into the plug hole, and the other end is fixedly provided with a pull handle for facilitating the movement of the plug rod (23).
5. The filling device for plastic coating of a balancing weight of a washing machine according to claim 1, wherein The adjusting plate (11) is provided with a groove (18), the inner wall of the groove (18) is fixedly provided with a nut (20), the nut (20) is threadedly connected with a threaded rod (19) for adjusting the height of the adjusting plate (11), and the bottom end of the threaded rod (19) is rotatably connected with the bottom inner wall of the concave seat (12), the bottom of the concave seat (12) is provided with a through hole, the top inner wall of the through hole is fixedly provided with a second motor (21) for driving the threaded rod (19) to rotate, and the output end of the second motor (21) penetrates through the concave seat (12) and is fixedly connected with the bottom end of the threaded rod (19).
6. A filling device for molding a weight for a washing machine according to claim 2, wherein The dredging rod (10) is fixedly sleeved with a limiting ring (14) for limiting the dredging rod (10).