Feeding device and injection molding machine
By designing a feeding device with switching and filtering components, the problem of production downtime caused by the accumulation of large particles of material was solved, enabling rapid cleaning without stopping the machine and improving the production efficiency and continuity of the injection molding machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGMEN TIANHUA PACKING
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-10
AI Technical Summary
The existing feeding device accumulates large particles of material on the filter screen, which reduces the feeding rate and requires shutdown for cleaning, affecting production continuity and efficiency.
Design a feeding device that includes a switching component and a filtering component. The switching component switches between feeding and discharging states, and the filter plate is flipped by a driver to achieve rapid cleaning of large particles without stopping the machine, thus ensuring continuous production.
It enables rapid cleaning of the filter screen without stopping the machine, and the cleaning process of large particles does not affect the production process, thus improving production efficiency and continuity.
Smart Images
Figure CN224103384U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to injection molding equipment technical field, concretely relates to a feeding device and injection molding machine. BACKGROUND
[0002] Injection molding machine is also called injection molding machine or injection machine, it is the main molding equipment of thermoplastic or thermosetting plastic and is made into various shapes of plastic products by plastic molding die, and is divided into vertical type, horizontal type and full electric type, injection molding machine can heat plastic, melt plastic and make it fill the mold cavity.
[0003] The existing feeding device generally is provided with filter screen plate and other structures, which can screen out large raw material particles to avoid entering the heating mechanism for heating. The large particles will not be heated thoroughly, and after processing into products, the product material distribution is uneven, resulting in defective products.
[0004] However, although the filter screen plate can screen the size of plastic particles during use, large particle materials will accumulate on the filter screen plate, gradually reducing the feeding rate over time. And discharging these large particle raw materials needs to stop processing, which breaks the continuity of the production process, thereby reducing the overall production efficiency. TECHNICAL SOLUTION
[0005] The utility model aims at overcoming the above technical defects, and provides a feeding device and injection molding machine, which solves the technical problem that the existing technology needs to stop to discharge large particles blocked by the filter screen.
[0006] In order to achieve the above technical purpose, the utility model adopts the following technical scheme:
[0007] In the first aspect, the utility model provides a feeding device, which comprises:
[0008] A feeding pipeline has a feeding port, a discharging port and a discharge port;
[0009] A switching assembly is arranged in the feeding pipeline, the switching assembly has a feeding state that connects the feeding port and the discharging port, and a discharging state that connects the feeding port and the discharge port, and the switching assembly can be switched between the feeding state and the discharging state;
[0010] A filter assembly comprises a filter plate and a driver, the filter plate is arranged in the feeding pipeline and located on the side of the switching assembly close to the feeding port, and the driver is connected with the filter plate to drive the filter plate to overturn.
[0011] In some embodiments, the switching assembly is rotationally connected with the feeding pipe and has a Y-shaped flow channel formed inside, the Y-shaped flow channel having a first interface, a second interface and a third interface; when the switching assembly is in a feeding state, the first interface communicates with the feeding port, the second interface communicates with the discharging port, and the third interface faces the inner wall of the feeding pipe; when the switching assembly is in a discharging state, the first interface faces the inner wall of the feeding pipe, the second interface communicates with the discharging port, and the third interface communicates with the feeding port.
[0012] In some embodiments, the injection molding machine feeding device comprises two sets of the filter assemblies, the driving directions of the drives of the two sets of filter assemblies are parallel, and the filter plates of the two sets of filter assemblies can abut to separate the feeding port and the discharging port.
[0013] In some embodiments, the filter assembly comprises four filter plates, the filter plates are uniformly distributed around the rotation axis of the drive, and the included angle between adjacent two filter plates is 90°.
[0014] In some embodiments, when one of the filter plates abuts against the filter plate of another filter assembly, the remaining three filter plates abut against the inner wall of the feeding pipe.
[0015] In some embodiments, the filter plate comprises a frame and a filter screen, the frame surrounds the filter screen and is fixedly connected with the edge of the filter screen, and the frame has elasticity.
[0016] In some embodiments, the filter plate further comprises an electromagnet, the electromagnet is embedded in the frame, and the filter plate can be attracted to the feeding pipe and / or another filter plate by the electromagnet.
[0017] In some embodiments, the filter plate further comprises a pressure sensor, the pressure sensor is embedded in the frame and is used to measure the pressure borne by the filter plate.
[0018] In some embodiments, the feeding port is located above the discharging port and the discharging port, the filter assembly is located above the switching assembly, the first interface and the third interface are arranged upward, and the second interface is arranged downward.
[0019] In a first aspect, the utility model provides a kind of injection molding machine, including feeding device.
[0020] Compared with the prior art, the feeding device provided by the utility model can switch the switching assembly to the discharging state and overturn the filter plate when the feeding speed is affected by the large particles blocked by the filter screen, so that the large particles are discharged from the discharging port, and then the feeding state is switched back, so that the filter screen is cleaned quickly without stopping the machine, the continuity of the production process is ensured, and the overall production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a structural schematic view of the feeding device provided by the utility model embodiment;
[0022] Figure 2 is Figure 1 is a structural schematic view of the switching assembly in the discharging state.
[0023] Figure 3 is a structural schematic view of another embodiment of the feeding device provided by the utility model embodiment;
[0024] Figure 4 is Figure 3 is a structural schematic view of the filter plate. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model is further described in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.
[0026] In order to solve the technical problem that the prior art needs to stop the machine to discharge the large particles blocked by the filter screen, the utility model provides a feeding device, which can clean the filter screen quickly without stopping the machine, ensures the continuity of the production process, and improves the overall production efficiency.
[0027] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic view of the feeding device provided by the utility model embodiment; Figure 2 is Figure 1 is a structural schematic view of the switching assembly in the discharging state.
[0028] The feeding device comprises a feeding pipeline 1, a switching assembly 2 and a filtering assembly 3.
[0029] The feeding pipeline 1 has a feeding port 11, a discharging port 12 and a discharging port 13.
[0030] The switching assembly 2 is arranged in the feeding pipe 1, and has a feeding state in which the feeding port 11 and the discharging port 12 are communicated and a discharging state in which the feeding port 11 and the discharging port 13 are communicated, and the switching assembly 2 can be switched between the feeding state and the discharging state.
[0031] The filtering assembly 3 comprises a filtering plate 31 and a driver 32, the filtering plate 31 is arranged in the feeding pipe 1 and located at the side of the switching assembly 2 close to the feeding port 11, and the driver 32 is connected with the filtering plate 31 to drive the filtering plate 31 to overturn.
[0032] When the switching assembly 2 is in the feeding state, the raw material particles enter from the feeding port 11, are filtered by the filtering plate 31 and then enter the heating equipment of the injection molding machine from the discharging port 12. The filtering plate 31 blocks the large particles in the raw material, and when the accumulation reaches a certain degree, the switching assembly 2 is switched to the discharging state. The driver 32 drives the filtering plate 31 to overturn, and the raw material accumulated on the filtering plate 31 is discharged from the discharging port 13. The filtering plate 31 is emptied and the normal feeding speed is restored.
[0033] In some embodiments, the feeding port 11 is located above the discharging port 12 and the discharging port 13, and the filtering assembly 3 is located above the switching assembly 2, and the raw material falls freely by gravity.
[0034] In some embodiments, the switching assembly 2 is rotationally connected with the feeding pipe 1 and has a Y-shaped flow channel formed inside. The Y-shaped flow channel has a first interface 21, a second interface 22 and a third interface 23. When the switching assembly 2 is in the feeding state, the first interface 21 is communicated with the feeding port 11, the second interface 22 is communicated with the discharging port 12, and the third interface 23 is directed to the inner wall of the feeding pipe 1. When the switching assembly 2 is in the discharging state, the first interface 21 is directed to the inner wall of the feeding pipe 1, the second interface 22 is communicated with the discharging port 13, and the third interface 23 is communicated with the feeding port 11. By arranging the first interface 21 and the third interface 23 upward and the second interface 22 downward, the material can move along the designed path.
[0035] Please refer to Figure 3 , Figure 3 is a structure schematic view of another embodiment of the feeding device provided by the embodiment of the utility model. In the embodiment, the feeding device comprises two filtering assemblies 3, the driving directions of the drivers 32 of the two filtering assemblies 3 are parallel, and the filtering plates 31 of the two filtering assemblies 3 can abut against each other to separate the feeding port 11 and the discharging port 12. Obviously, in order to avoid material leakage, when the two filtering plates 31 abut against each other, no gap should be generated or the width of the generated gap should be less than the aperture of the filtering plate 31.
[0036] In some embodiments, the filtering assembly 3 comprises four filtering plates 31, which are evenly distributed around the rotation axis of the driver 32, and the angle between any two adjacent filtering plates 31 is 90°. With this structure, when a pair of filtering plates 31 abut to filter, the remaining filtering plates 31 can form a channel-like structure to guide the feedstock.
[0037] In the preferred embodiments, when one filtering plate 31 abuts with another filtering plate 31 of the filtering assembly 3, the remaining three filtering plates 31 abut with the inner wall of the feeding pipe 1.
[0038] Please refer to Figure 4 , Figure 4 is Figure 3 a structural diagram of the filtering plate. In some embodiments, the filtering plate 31 comprises a frame 311 and a filter screen 312, and the frame 311 surrounds the filter screen 312 and is fixedly connected with the edge of the filter screen 312. The frame 311 has elasticity and can be closely connected with other filtering plates 31 or the feeding pipe 1 when in contact.
[0039] In some embodiments, the filtering plate 31 further comprises an electromagnet 313, which is embedded in the frame 311, and the filtering plate 31 can be attracted to the feeding pipe 1 and / or another filtering plate 31 by the electromagnet 313. The magnetic attraction generated by the electromagnet 313 can be used to support the filtering plate 31, and when it is necessary to flip the filtering plate 31, the electromagnet 313 is powered off to lose its magnetism. In this embodiment, the driver 32 can be a rotating shaft, and the driving force for flipping the filtering plate 31 is provided by the gravity of the material on the filtering plate 31. That is, after the electromagnet 313 is powered off, the filtering plate 31 is automatically flipped by the gravity of the material, and then the electromagnet 313 is powered on again in a very short time, and the next pair of filtering plates 31 are attracted to each other to continue to filter the raw material.
[0040] In some embodiments, the filtering plate 31 further comprises a pressure sensor embedded in the frame 311, which is used to measure the pressure borne by the filtering plate 31. When the detected pressure reaches a preset value, a signal is sent out, the operator switches the switching assembly 2 from the feeding state to the discharging state, the driver 32 drives the filtering plate 31 to flip, and the material accumulated on the filtering plate 31 is discharged from the discharge port 13. These discharged materials can be separated into large-particle materials and normal-particle materials by a vibrating screen, and the normal-particle materials continue to be used for production. Then the switching assembly 2 is switched from the discharging state to the feeding state, and the normal feeding continues. This process takes a very short time and can be operated without stopping.
[0041] The utility model also provides a kind of injection molding machine, and the injection molding machine includes any one of the above feeding device.
[0042] The specific implementation of the utility model above does not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A feeding device, characterized in that, The application relates to a feeding device. The feeding device comprises: a feeding pipe with a feeding inlet, a feeding outlet and a discharging outlet; a switching assembly arranged in the feeding pipe, the switching assembly having a feeding state in which the feeding inlet and the feeding outlet are communicated and a discharging state in which the feeding inlet and the discharging outlet are communicated, and the switching assembly can be switched between the feeding state and the discharging state; 2. The feeding device according to claim 1, characterized in that a filtering assembly comprising filtering plates and a driver, the filtering plates being arranged in the feeding pipe and located on the side of the switching assembly close to the feeding inlet, and the driver being connected with the filtering plates to drive the filtering plates to overturn.
3. The feeding device according to claim 1, characterized in that, The switching assembly is rotationally connected with the feeding pipe and has a Y-shaped flow channel formed inside, the Y-shaped flow channel having a first interface, a second interface and a third interface; when the switching assembly is in the feeding state, the first interface communicates with the feeding inlet, the second interface communicates with the feeding outlet, and the third interface faces the inner wall of the feeding pipe; when the switching assembly is in the discharging state, the first interface faces the inner wall of the feeding pipe, the second interface communicates with the discharging outlet, and the third interface communicates with the feeding inlet.
4. The feeding device according to claim 3, characterized in that The feeding device comprises two sets of the filtering assembly, the driving directions of the drivers of the two sets of the filtering assembly are parallel, and the filtering plates of the two sets of the filtering assembly can abut against each other to separate the feeding inlet and the feeding outlet.
5. The feeding device according to claim 4, characterized in that The filtering assembly comprises four filtering plates, the filtering plates are uniformly distributed around the rotation shaft of the driver, and the included angle between two adjacent filtering plates is 90 degrees.
6. The feeding device according to claim 3, wherein When one of the filtering plates abuts against the filtering plate of the other filtering assembly, the other three filtering plates abut against the inner wall of the feeding pipe.
7. The loading device according to claim 6, characterized in that The filtering plate comprises a frame and a filter screen, the frame surrounds the filter screen and is fixedly connected with the edge of the filter screen, and the frame has elasticity.
8. The feeding device according to claim 6, characterized in that The filtering plate further comprises an electromagnet, the electromagnet is embedded in the frame, and the filtering plate can be attracted to the feeding pipe and / or the other filtering plate through the electromagnet.
9. The feeding device according to claim 2, wherein The filtering plate further comprises a pressure sensor, the pressure sensor is embedded in the frame and is used to measure the pressure borne by the filtering plate.
10. An injection molding machine characterized by, The feeding inlet is located above the feeding outlet and the discharging outlet, the filtering assembly is located above the switching assembly, the first interface and the third interface are arranged upwards, and the second interface is arranged downwards. The application further relates to a feeding device comprising the feeding device according to any one of claims 1-9.