Vacuum filling device for injection molding machine
The vacuum filling device addresses blockages in the vacuum pump by employing a filter plate mechanism and pressure management system to direct plastic particles through the drying box, ensuring efficient operation and preventing pump blockages.
Patent Information
- Application Number
- CN202420776843.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The existing vacuum filling device for injection molding machines suffers from blockages in the vacuum pump due to plastic particles entering directly from the vacuum hopper, leading to inefficiencies and reduced functionality.
A vacuum filling device with a filter plate mechanism that prevents plastic particles from entering the vacuum pump by using a sliding system of first and second sliders to secure the filter plate, combined with an air compressor and ventilation system to manage pressure differences, ensuring plastic particles are directed through the drying box without blocking the vacuum pump.
Prevents blockages in the vacuum pump by filtering plastic particles, ensuring smooth operation and efficient feeding of plastic into the drying box, thereby enhancing the device's practicality and efficiency.
Smart Images
Figure CN222156423U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mold processing equipment, in particular to a vacuum filling device for an injection molding machine. Background Art
[0002] An injection molding machine is a mechanical device used in the production of plastic products. It injects heated molten plastic into a mold, cools and hardens it in the mold, and eventually forms a variety of plastic products. These products can include everything from small parts to large components and are widely used in many industries such as automobiles, electronics, medical care, and packaging.
[0003] After searching, a Chinese patent document with announcement number CN204736400U discloses a vacuum filling machine, including a base, a suction machine, a dryer and an injection molding machine. The top of the base is provided with an injection molding machine, a storage barrel and a suction machine from left to right in sequence. An air compressor is provided on the top of the main motor, a motor is provided on the right side of the air compressor, a control host is provided on the back of the air compressor, a dryer is provided on the top of the injection molding machine, an electric eye hopper is connected to the bottom of the dryer, a material injection port is installed at the bottom of the electric eye hopper, a vacuum hopper is connected to the top of the dryer, a vacuum pump is provided at the bottom of the inner cavity of the vacuum hopper, a suction pipe is connected to the right side of the suction nozzle, and a ventilation pipe is connected to the top of the vacuum hopper. The utility model has strong maneuverability and high working efficiency, and is suitable for popularization and use.
[0004] This patent solves the problem of slow feeding speed and long feeding time. However, during the use of the device, due to the vacuum pump provided under the vacuum hopper, the plastic particles in the vacuum hopper cannot directly enter the drying cylinder under the vacuum pump through the vacuum pump. Instead, the plastic particles will enter the vacuum pump, causing the vacuum pump to be blocked, affecting its use. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a vacuum filling device for an injection molding machine, which aims to improve the problem that a vacuum pump is arranged under the vacuum hopper, and the plastic particles in the vacuum hopper cannot directly enter the drying cylinder under the vacuum pump through the vacuum pump, but the plastic particles will enter the vacuum pump, causing the vacuum pump to be blocked, affecting the use.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vacuum filling device for an injection molding machine, comprising a drying box, a first fixed plate is fixedly connected to the inner top of the drying box, a first slider is slidably connected inside the first fixed plate, a second fixed plate is fixedly connected to the inner left side of the drying box, a second slider is slidably connected inside the second fixed plate, a filter plate is fixedly connected to the bottom of the first slider, and one side of the filter plate is fixedly connected to one side of the second slider, and a handle is fixedly connected to the middle of the front side of the filter plate.
[0007] As a further description of the above technical solution:
[0008] A material storage box is arranged on the right side of the outside of the drying box, and a feeding pipe is fixedly connected to the top of the material storage box.
[0009] As a further description of the above technical solution:
[0010] The top of the feed pipe is fixedly connected with a storage barrel, the inner top of the storage barrel is fixedly connected with a fixing rod, and the outer side of the fixing rod is fixedly connected with a spiral blade.
[0011] As a further description of the above technical solution:
[0012] A discharge pipe is fixedly connected to the outer side of the material storage barrel, and one end of the discharge pipe is fixedly connected to the front side of the top side of the drying box.
[0013] As a further description of the above technical solution:
[0014] An air compressor is fixedly connected to the top of the right side of the drying box, a ventilation pipe is fixedly connected to the output end of the air compressor, and one end of the ventilation pipe is fixedly connected to the rear side of the top side of the drying box.
[0015] As a further description of the above technical solution:
[0016] A vacuum pump is fixedly connected to the left side of the top of the drying box, and a vacuum sensor is fixedly connected to the right side of the inner top of the drying box.
[0017] As a further description of the above technical solution:
[0018] The vacuum pump and the vacuum sensor are electrically connected.
[0019] As a further description of the above technical solution:
[0020] The front side of the drying box is rotatably connected with a switch door, and the outer side of the switch door is fixedly connected with a handle.
[0021] The utility model has the following beneficial effects:
[0022] 1. In the utility model, the filter plate can be fixed between the first fixed plate and the second fixed plate by the first slider and the second slider, so as to prevent the plastic particles which become lighter from moving along with the airflow under the vacuum state, so that the plastic particles will enter the interior of the vacuum pump and cause the vacuum pump to be blocked, thereby improving the practicality of the device.
[0023] 2. In the utility model, plastic particles can enter the storage barrel through the feed pipe and pass through the spiral blades, so that the plastic particles can evenly pass through the discharge pipe and then enter the interior of the drying box, avoiding the blockage of the plastic particles in the discharge pipe, and further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is an overall structural diagram of a vacuum filling device for an injection molding machine proposed by the utility model;
[0025] Figure 2 This is a top view of the overall result of a vacuum filling device for an injection molding machine proposed by the utility model;
[0026] Figure 3 This is a diagram showing the internal structure of a drying box for a vacuum filling device for an injection molding machine proposed by the utility model;
[0027] Figure 4 The utility model is a cross-sectional view of a material storage barrel of a vacuum filling device for an injection molding machine.
[0028] Legend:
[0029] 1. Drying box; 2. First fixed plate; 3. First slider; 4. Second fixed plate; 5. Second slider; 6. Filter plate; 7. Handle; 8. Storage box; 9. Feed pipe; 10. Storage barrel; 11. Fixed rod; 12. Spiral blade; 13. Discharge pipe; 14. Air compressor; 15. Ventilation pipe; 16. Vacuum pump; 17. Vacuum sensor; 18. Door switch; 19. Handle. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] Reference Figure 3 The utility model provides an embodiment: a vacuum filling device for an injection molding machine, comprising a drying box 1, a first fixed plate 2 is fixedly connected to the inner top of the drying box 1, a first slider 3 is slidably connected inside the first fixed plate 2, a second fixed plate 4 is fixedly connected to the left side of the drying box 1, a second slider 5 is slidably connected inside the second fixed plate 4, a filter plate 6 is fixedly connected to the bottom of the first slider 3, and one side of the filter plate 6 is fixedly connected to one side of the second slider 5, and a handle 7 is fixedly connected to the middle of the front side of the filter plate 6.
[0032] When in use, the air compressor 14 is first driven to suck in and compress the air inside the drying box 1 through the ventilation pipe 15, thereby increasing the pressure difference inside the drying box 1, so that the plastic particles inside the storage box 8 are sucked into the feed pipe 9, and then enter the discharge pipe 13 through the spiral blades 12 inside the storage barrel 10, and finally enter the drying box 1, and then the vacuum pump 16 is driven to keep the inside of the drying box 1 in a vacuum state. The vacuum sensor 17 inside the drying box 1 will monitor the pressure inside the drying box 1 in real time. When the pressure inside the drying box 1 is too high, the vacuum pump 16 will automatically stop driving.
[0033] Reference Figure 1 , Figure 4 , a storage box 8 is provided on the right side of the outside of the drying box 1, and a feed pipe 9 is fixedly connected to the top of the storage box 8. A storage barrel 10 is fixedly connected to the top of the feed pipe 9, and a fixed rod 11 is fixedly connected to the inner top of the storage barrel 10, and a spiral blade 12 is fixedly connected to the outer side of the fixed rod 11. A discharge pipe 13 is fixedly connected to the outer side of the storage barrel 10, and one end of the discharge pipe 13 is fixedly connected to the front side of the top side of the drying box 1. Through the storage box 8, plastic particles can be stored in the storage box 8, so that automatic feeding can be achieved. Through the feed pipe 9, plastic particles can enter the storage barrel 10 from the storage box 8 through the feed pipe 9. Through the storage barrel 10, plastic particles can be evenly transmitted to the inside of the drying box 1 to avoid blockage of plastic particles in the discharge pipe 13. Through the discharge pipe 13, plastic particles can enter the drying box 1 through the discharge pipe 13.
[0034] Reference Figure 2 The top right side of the drying box 1 is fixedly connected with an air compressor 14, the output end of the air compressor 14 is fixedly connected with a ventilation pipe 15, and one end of the ventilation pipe 15 is fixedly connected to the rear side of the top side of the drying box 1. Through the air compressor 14 and the ventilation pipe 15, the air inside the drying box 1 can be sucked in and compressed, increasing the pressure difference inside the drying box 1, thereby realizing automatic loading.
[0035] Reference Figure 3 A vacuum pump 16 is fixedly connected to the left side of the top of the drying box 1, and a vacuum sensor 17 is fixedly connected to the right side of the top of the inner side of the drying box 1. The vacuum pump 16 and the vacuum sensor 17 are electrically connected. The vacuum pump 16 can keep the drying box 1 in a vacuum state, and the pressure inside the drying box 1 can be monitored in real time through the vacuum sensor 17. The vacuum sensor 17 is electrically connected to the vacuum pump 16, so that when the pressure inside the drying box 1 is too high, the vacuum pump 16 can be automatically stopped.
[0036] Reference Figure 1 , Figure 2The front side of the drying box 1 is rotatably connected with a switch door 18, and the outer side of the switch door 18 is fixedly connected with a handle 19. By opening the switch door 18, the filter plate 6 inside the drying box 1 can be disassembled, and the switch door 18 can be opened more conveniently through the handle 19.
[0037] Working principle: When in use, first pull the handle 19 to open the switch door 18, then slide the first slider 3 and the second slider 5 to connect to the inside of the first fixed plate 2 and the second fixed plate 4 respectively, so as to fix the filter plate 6 to prevent the fixed plate from falling, then close the switch door 18, drive the air compressor 14, and suck and compress the air inside the drying box 1 through the ventilation pipe 15, thereby increasing the pressure difference inside the drying box 1. The pressure difference inside the drying box 1 will suck the plastic particles inside the storage box 8 into the feed pipe 9, and then the plastic particles enter the storage barrel 10, pass through the spiral blades 12 and then enter the discharge pipe 13, and finally enter the inside of the drying box 1 from the discharge pipe 13. The drying box 1 dries the plastic particles, and then Then drive the vacuum pump 16 to keep the inside of the drying box 1 in a vacuum state. When in a vacuum state, the weight of the plastic particles will become lighter. When the vacuum pump 16 is driven, the plastic particles with lighter weight will move with the airflow, and the moving plastic particles will be blocked by the filter plate 6 to prevent the plastic particles from entering the inside of the vacuum pump 16, causing the vacuum pump 16 to be blocked and affecting the use. The vacuum sensor 17 inside the drying box 1 will monitor the pressure inside the drying box 1 in real time. When the pressure inside the drying box 1 is too high, the vacuum pump 16 will be automatically stopped. When use is completed, the filter plate 6 needs to be disassembled. Just open the switch door 18, and then pull the handle 7 to pull out the filter plate 6 and the first slider 3 and the second slider 5.
[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A vacuum filling device for an injection molding machine, comprising a drying oven (1), characterized in that: A first fixed plate (2) is fixedly connected to the top of the inner side of the drying box (1), a first sliding block (3) is slidably connected inside the first fixed plate (2), a second fixed plate (4) is fixedly connected to the left side of the inner side of the drying box (1), a second sliding block (5) is slidably connected inside the second fixed plate (4), a filter plate (6) is fixedly connected to the bottom of the first sliding block (3), one side of the filter plate (6) is fixedly connected to one side of the second sliding block (5), and a handle (7) is fixedly connected to the middle of the front side of the filter plate (6).
2. A vacuum filling device for an injection molding machine according to claim 1, characterized in that: A material storage box (8) is arranged on the right side of the outside of the drying box (1), and a feed pipe (9) is fixedly connected to the top of the material storage box (8).
3. A vacuum filling device for an injection molding machine according to claim 2, characterized in that: The top of the feed pipe (9) is fixedly connected to a storage barrel (10), the inner top of the storage barrel (10) is fixedly connected to a fixing rod (11), and the outer side of the fixing rod (11) is fixedly connected to a spiral blade (12).
4. A vacuum filling device for an injection molding machine according to claim 3, characterized in that: A discharge pipe (13) is fixedly connected to the outer side of the storage barrel (10), and one end of the discharge pipe (13) is fixedly connected to the front side of the top side of the drying box (1).
5. A vacuum filling device for an injection molding machine according to claim 1, characterized in that: An air compressor (14) is fixedly connected to the top of the right side of the drying box (1), a ventilation pipe (15) is fixedly connected to the output end of the air compressor (14), and one end of the ventilation pipe (15) is fixedly connected to the rear side of the top side of the drying box (1).
6. A vacuum filling device for an injection molding machine according to claim 1, characterized in that: A vacuum pump (16) is fixedly connected to the left side of the top of the drying box (1), and a vacuum sensor (17) is fixedly connected to the right side of the inner top of the drying box (1).
7. A vacuum filling device for an injection molding machine according to claim 6, characterized in that: The vacuum pump (16) and the vacuum sensor (17) are electrically connected.
8. A vacuum filling device for an injection molding machine according to claim 1, characterized in that: The front side of the drying box (1) is rotatably connected to a switch door (18), and the outer side of the switch door (18) is fixedly connected to a handle (19).