Automatic feeding device of injection molding machine and injection molding machine

Abstract

The utility model relates to the field of fitness devices, in particular to an automatic feeding device of an injection molding machine, which comprises a storage bin, a storage barrel, a feed hopper and a high-pressure fan, a first suction pipe, a second suction pipe and a first blanking port are arranged on the storage barrel, the first suction pipe is communicated with the storage bin and the storage barrel, a funnel-shaped structure is arranged at the bottom of the storage barrel, the first blanking port is formed in the bottom of the funnel-shaped structure, one end of the second suction pipe is communicated with the first blanking port, and the other end of the second suction pipe is communicated with the supply hopper; a magnetic suction filtering assembly is further arranged in the storage barrel and located above the first discharging opening. Materials in the material storage bin are conveyed to the material storage barrel in a negative pressure adsorption mode, then the materials in the material storage barrel are conveyed to the material supply hopper, an operator only needs to add the materials into the material storage bin, use is convenient, safety is high, the magnetic suction filtering assembly is arranged in the material storage barrel and used for filtering metal substances such as scrap iron in the materials, and the material storage bin is convenient to use. Product quality is improved, and service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, and specifically relates to an automatic feeding device for an injection molding machine and an injection molding machine. Background Art

[0002] The automatic feeding mechanism of an injection molding machine is an auxiliary device for feeding the injection molding machine and is a key device in the production process of the injection molding machine. It is widely used in the field of injection molding machine equipment, can effectively improve the working efficiency of the injection molding machine, reduce manual operation, and lower labor intensity. It is an indispensable device in modern injection molding production.

[0003] The materials used in the injection molding machine are plastic particles. During the processing and production process, it is easy to mix in metal particles such as iron filings, large refractory particles or other impurities. If not processed in time and directly used, it will seriously affect the product quality. In addition, after the metal particles enter the injection molding machine, they will also cause damage to the barrel and screw of the injection molding machine, affect the production efficiency, and have a greater impact on the service life of the equipment. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model proposes an automatic feeding device for an injection molding machine. By setting a storage bin and a storage barrel, the materials in the storage bin are transported to the storage barrel by means of negative pressure adsorption, and then the materials in the storage barrel are transported to the feeding hopper, greatly increasing the material storage capacity of the equipment, reducing the material addition frequency during the production process, and setting a magnetic adsorption filtering component in the storage barrel to filter metal substances such as iron filings in the materials, improving the product quality and extending the service life of the equipment.

[0005] The first object of the utility model is to provide an automatic feeding device for an injection molding machine, which includes a storage bin, a storage barrel, a feeding hopper and a high-pressure blower; a first suction pipe, a second suction pipe and a first blanking port are arranged on the storage barrel. The first suction pipe connects the storage bin and the storage barrel. The bottom of the storage barrel is provided with a funnel-shaped structure, and the first blanking port is arranged at the bottom of the funnel-shaped structure. One end of the second suction pipe is connected to the first blanking port, and the other end is connected to the feeding hopper; a magnetic adsorption filtering component is also arranged inside the storage barrel, and the magnetic adsorption filtering component is located above the first blanking port; the high-pressure blower is used to generate negative pressure suction inside the storage barrel or the feeding hopper.

[0006] Further, the magnetic adsorption filtering component includes a magnetic frame or a magnetic filter net, and the magnetic frame or the magnetic filter net covers above the first blanking port.

[0007] Further, the magnetic adsorption filtering component includes a magnetic frame, and the magnetic frame includes at least one mounting plate and a plurality of connecting rods. A plurality of mounting holes are arranged at intervals on the mounting plate, and the plurality of connecting rods are fixedly arranged in the mounting holes;

[0008] At least one of the mounting plate and the connecting rod is a magnetic part.

[0009] Further, the plurality of connecting rods are arranged in parallel with each other, and two mounting plates are arranged at intervals along the length direction of the plurality of connecting rods.

[0010] Further, the magnetic adsorption filtering assembly includes at least two magnetic frames. The funnel-shaped structure has an inclined surface, and one ends of the plurality of connecting rods on the two magnetic frames close to the inclined surface are detachably connected to the inclined surface.

[0011] Further, a conical structure is further arranged above the magnetic adsorption filtering assembly. The inner diameter dimension of the conical structure gradually becomes smaller in the direction away from the first material dropping port, and a gap is arranged between the outer periphery of the bottom of the conical structure and the inner side wall of the storage barrel, so that the material falls into the bottom of the storage barrel through the gap.

[0012] Further, a material dropping baffle is further arranged below the first material dropping port, and the material dropping baffle is used to open or close the first material dropping port.

[0013] Further, a driving member is further arranged on the storage barrel. The material dropping baffle is rotatably arranged on the side wall of the first material dropping port and is in transmission connection with the driving member.

[0014] Further, a filter screen is further arranged inside the storage barrel, and the outer peripheral surface of the filter screen abuts against the inner side wall of the storage barrel.

[0015] Another object of the present utility model is to provide an injection molding machine, which includes the automatic feeding device of the injection molding machine according to any one of claims 1 to 9.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. By arranging the storage barrel and the storage bin, the present utility model conveys the material in the storage bin to the storage barrel through the first suction pipe by means of negative pressure adsorption, and then conveys the material in the storage barrel to the feeding hopper through the second feeding pipe, greatly increasing the material storage capacity of the equipment, reducing the material addition frequency during the production process, and increasing the production efficiency. A magnetic adsorption filtering assembly is further arranged in the storage barrel to filter metal substances such as iron filings in the material, improving the product quality, and at the same time avoiding the wear of the barrel and the screw caused by the metal substances entering the injection molding machine, and prolonging the service life of the equipment.

[0018] 2. By arranging the filter screen, the present utility model filters refractory large particles or other substances in the material, effectively improving the product quality. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the overall structure of an automatic feeding device for an injection molding machine proposed in an embodiment of the present invention;

[0021] Figure 2 Schematic diagram of the structure of another perspective of an automatic feeding device for an injection molding machine proposed in an embodiment of the present invention;

[0022] Figure 3 For Figure 2 Cross-sectional view at A-A in

[0023] Figure 4 Schematic diagram of the structure of a magnetic frame in an automatic feeding device for an injection molding machine proposed in an embodiment of the present invention;

[0024] Figure 5 For Figure 3 Partial enlarged view at B in

[0025] In the figure:

[0026] 100 - storage bin;

[0027] 200 - storage barrel, 210 - first suction pipe, 220 - second suction pipe, 230 - magnetic frame, 231 - connecting rod, 232 - mounting plate, 240 - conical structure, 241 - mounting rod, 250 - drying device. 260 - dust removal device, 270 - drive motor. 280 - first blanking port, 290 - filter screen;

[0028] 300 - feeding hopper;

[0029] 400 - high-pressure blower. Detailed implementation manners

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0031] Such as Figures 1 to 5As shown in the figure, the first object of the present utility model is to provide an automatic feeding device for an injection molding machine, which includes a storage bin 100, a storage barrel 200, a feeding hopper 300 and a high-pressure blower 400; a first feeding port is provided at the top of the storage barrel 200, and its bottom is set as a funnel-shaped structure. A first material dropping port 280 is also provided at the bottom of the funnel-shaped structure; a second feeding port is provided at the top of the feeding hopper 300, and a second material dropping port is provided at the bottom. The second material dropping port is not marked in the attached drawing. The feeding hopper 300 is communicated with the injection molding machine body through the second material dropping port to realize feeding the injection molding machine. One end of a first suction pipe 210 is communicated with the first feeding port, and the other end extends into the storage bin 100 for conveying the material in the storage bin 100 into the storage barrel 200. One end of a second suction pipe 220 is communicated with the first material dropping port 280, and the other end is communicated with the second feeding port for conveying the material in the storage barrel 200 into the feeding hopper 300. Among them, the funnel-shaped structure is beneficial to the material in the storage barrel 200 to enter the second suction pipe 220 through the first material dropping port 280.

[0032] In this embodiment, the high-pressure blower 400 is communicated with the feeding hopper 300 and the storage barrel 200 respectively through a vacuum pipe to extract the air in the feeding hopper 300 or the storage barrel 200, so as to generate a negative pressure suction force inside the storage barrel 200 or the feeding hopper 300. Among them, the number of high-pressure blowers 400 can be one or two; when the high-pressure blower 400 is set to one, a three-way valve needs to be provided at the suction port of the high-pressure blower 400; when the high-pressure blower 400 is set to two, the two high-pressure blowers 400 are respectively communicated with the storage barrel 200 and the feeding hopper 300.

[0033] In this embodiment, a magnetic adsorption filtering component is also provided inside the storage barrel 200 for filtering metal impurities in the material by magnetic adsorption, improving the product quality and prolonging the service life of the barrel and screw of the injection molding machine. The magnetic adsorption filtering component is arranged above the first material dropping port 280, and the material needs to pass through the magnetic adsorption filtering component before falling into the first material dropping port 280.

[0034] Such as Figures 1 to 3 、 Figure 5As shown, in some embodiments, an induction switch is further provided below the first blanking port 280 and the second blanking port (not shown in the figure), which is used to sense whether there is a lack of material in the feeding hopper 300 and the storage barrel 200. The induction switch can be a photoelectric switch or a microswitch, etc. When the induction switch senses that there is no material in the feeding hopper 300, the high-pressure blower 400 starts to extract the air in the feeding hopper 300, so that a negative pressure suction is generated in the feeding hopper 300 to suck the material from the storage barrel 200. When the induction switch senses that there is no material in the feeding hopper 300, the high-pressure blower 400 starts to extract the air in the storage barrel 200, so that a negative pressure suction is generated inside the storage barrel 200 to suck the material from the storage bin 100. It should be noted that when the storage barrel 200 sucks the material stored in the storage bin 100, the first blanking port 280 is set to be in a closed state to prevent the material in the feeding hopper 300 from being sucked back into the storage barrel 200 under the negative pressure suction of the storage barrel 200. When feeding the feeding hopper 300 is required, the high-pressure blower 400 starts to extract the air in the feeding hopper 300, so that a negative pressure suction is generated inside the feeding hopper 300. At this time, the first blanking port 280 is set to be in an open state, and the material in the storage barrel 200 is sucked into the feeding hopper 300 through the second suction pipe 220.

[0035] As Figures 1 to 3 , Figure 5 shown, in some embodiments, a drying device 250 and a dust removal device 260 are further provided on the storage barrel 200 to heat and dry the material in the barrel, remove the moisture and dust in the material, and improve the product quality. The dust removal device 260 can be arranged on the top of the storage barrel 200 and communicated with the first blanking port. One end of the first suction pipe 210 is arranged on the dust removal device 260, and the other end extends into the storage bin 100. The high-pressure blower 400 is communicated with the dust removal device 260 through a vacuum pipe. The heating and drying device 250 includes an electric heating wire and a controller. The electric heating wire is arranged in the side wall of the storage barrel 200. Specifically, the side wall of the storage barrel 200 can be set as an inner liner and an outer shell, and the heating wire is arranged between the inner liner and the outer shell. The heating power of the electric heating wire is controlled by the controller to heat and dry the material inside the storage barrel 200.

[0036] Figures 1 to 4 shown, in some embodiments, the magnetic adsorption filtering component can be a magnetic rack 230 or a magnetic filter screen, etc., which can adsorb and filter the metal impurities in the material while allowing the material to pass through the magnetic adsorption filtering component and fall into the first blanking port 280. It can be understood that, in order to improve the filtering effect, the magnetic adsorption filtering component is arranged above the first blanking port 280 and covers the first blanking port 280. Preferably, the first blanking port 280 is completely covered, and all materials need to be filtered through the magnetic adsorption filtering component before falling into the first blanking port 280.

[0037] In this embodiment, the magnetic rack 230 includes at least one mounting plate 232 and a plurality of connecting rods 231. Specifically, a plurality of mounting holes are provided on the mounting plate 232, and the plurality of connecting rods 231 are fixedly arranged in the mounting holes, and the plurality of connecting rods 231 all extend along their length directions and protrude beyond the opposite two side surfaces of the connecting plate. When the number of mounting plates 232 is set to be multiple, the plurality of connecting rods 231 jointly connect the multiple mounting plates 232, and the multiple mounting plates 232 are arranged at intervals along the length direction of the plurality of connecting rods 231. It should be noted that at least one of the connecting rod 231 and the mounting plate 232 is a magnetic member, and it can adsorb metal impurities in the material. For example, both the mounting plate 232 and the plurality of connecting rods 231 are set as magnetic members, and at this time the filtering effect is the best, but it can be understood that when the plurality of connecting rods 231 or at least one mounting plate 232 is separately set as a magnetic member, the present utility model can also be realized.

[0038] Preferably, the plurality of connecting rods 231 are arranged parallel to each other, and the axes of the plurality of connecting rods 231 are all perpendicular to the plane where the mounting plate 232 is located and are evenly distributed on the mounting plate 232, which is more conducive to the material passing through the magnetic adsorption filtering component.

[0039] In some embodiments, the magnetic rack 230 can also be set as a magnetic filter net, which can filter insoluble particles in the material while filtering metal impurities. It should be noted that when the magnetic filtering member is a magnetic filter net, the size of the mesh holes needs to be set with reference to the size of the material particles to be filtered. Therefore, it can be understood that multiple magnetic filter nets with different mesh hole sizes can be set according to different specifications of the materials. When in use, just select a suitable magnetic filter net for replacement.

[0040] Figures 1 to 5 As shown, in some embodiments, the magnetic filtering component includes at least two magnetic racks 230 or combines at least two different structures of magnetic filtering components for use. For example, the magnetic filtering component includes at least one magnetic rack 230 and at least one magnetic filter net, and the two form a double filtering effect, which can effectively improve the filtering effect of the magnetic filtering component. Preferably in the present utility model, the magnetic filtering component is set as two magnetic racks 230. The bottom funnel-shaped structure of the storage barrel 200 has an inclined surface, and the two magnetic racks 230 are both detachably arranged on the inclined surface and jointly cover the first material dropping port 280. It should be noted that setting the two magnetic racks 230 horizontally on the same horizontal plane and jointly covering the first material dropping port 280 can also realize the present utility model.

[0041] Specifically, two magnetic frames 230 are respectively arranged on the inclined surfaces on both sides of the funnel-shaped structure, and the ends of the two magnetic frames 230 close to the first material discharge port 280 jointly cover the first material discharge port 280. The detachable connection mode between the multiple connecting rods 231 on the magnetic frame 230 and the inclined surface can realize the connection and disassembly of the magnetic frame 230 and the inclined surface. It can be a magnetic connection. For example, the connecting rod 231 is set as a magnetic part, and the end of the connecting rod 231 is magnetically attracted to the inclined surface; it can also be a structure of hole and rod cooperation. For example, jacks are arranged at the positions corresponding to the connecting rods 231 on the inclined surface, and the multiple connecting rods 231 on the two magnetic frames 230 are respectively inserted into the jacks. As time goes by, the iron filings adsorbed on the magnetic frame 230 accumulate to a certain extent, which will affect the efficiency of material passing. Therefore, it is necessary to regularly clean the iron filings on the magnetic frame 230. The detachable connection mode is conducive to the operator to clean the iron filings adsorbed on the magnetic frame 230.

[0042] As Figures 1 to 3 shown, in some embodiments, a conical structure 240 is further arranged above the magnetic suction filtering component. The conical structure 240 can be fixedly connected to the inner side wall of the storage barrel 200 through a mounting frame, and its central axis coincides with the central axis of the storage barrel 200. The inner diameter of the conical structure 240 gradually becomes smaller in the direction away from the first material discharge port 280. The tip of the conical structure 240 is set to face away from the first material discharge port 280, and a gap is arranged between the outer periphery of its bottom and the inner side wall of the storage barrel 200 for materials to pass through. When the material contacts the surface of the conical structure 240, it scatters evenly along the circumferential direction of the conical structure 240, which can effectively increase the efficiency of the material passing through the magnetic suction filtering component and avoid material accumulation.

[0043] It can be understood that the mounting frame can be set to include multiple mounting rods 241. Each mounting rod 241 is set to have one end fixedly connected to the inner wall of the storage barrel 200 and the other end fixedly arranged on the conical structure 240, and it can realize the fixing function of the conical structure 240.

[0044] Figures 1 to 5 shown, in some embodiments, a material discharge baffle is further arranged below the first material discharge port 280. The material discharge baffle is movably arranged below the first material discharge port 280 and is used to open or close the first material discharge port 280. When sucking materials in the storage barrel 200, the first material discharge port 280 is closed by the material discharge baffle to prevent the materials in the feeding hopper 300 from being sucked back into the storage barrel 200.

[0045] Specifically, a driving member is further provided on the storage barrel 200. The blanking baffle is rotatably arranged on the inner side wall of the first blanking port 280, and the driving member is used to drive the blanking baffle to rotate, so as to open and close the first blanking port 280. At this time, the driving member can be a driving motor 270. The driving motor 270 is fixedly arranged below the blanking port, and its output end is fixedly connected to the blanking baffle, so that the blanking baffle can rotate following the output end of the motor. It can be understood that the blanking baffle can also be arranged in a structure such as an inclined insertion type, and the driving member is used to drive the blanking baffle to insert or move out below the first blanking port 280, so as to close and open the blanking baffle.

[0046] Figures 1 to 3 As shown, in some embodiments, a filter screen 290 is further arranged inside the storage barrel 200 to filter some large-particle refractory substances or other impurities in the material. The outer peripheral surface of the filter screen 290 abuts against the inner side wall of the storage barrel 200. The mesh size of the filter screen 290 can be set according to the particle size of the material, or multiple filter screens 290 with different mesh sizes can be provided for replacement use. It can be understood that the shape of the filter screen 290 can be set as a flat filter screen 290, or can also be set in a shape such as a cone.

[0047] As Figures 1 to 5 shown, another object of the present invention is to provide an injection molding machine, which includes the automatic feeding device of the injection molding machine according to any one of claims 1 to 9. The feeding device of the injection molding machine is connected to the injection molding machine body and can supply materials to the injection molding machine. A manipulator can also be arranged on the injection molding machine body to automatically take down the injection molded products, so as to realize automated production.

[0048] The above further describes the present invention with the help of specific embodiments. However, it should be understood that this specific description should not be construed as a limitation on the essence and scope of the present invention. Various modifications made by those of ordinary skill in the art to the above embodiments after reading this specification all fall within the scope protected by the present invention.

Claims

1. An automatic feeding device for an injection molding machine, characterized in that, It includes a storage bin, a storage barrel, a feeding hopper and a high-pressure blower; a first suction pipe, a second suction pipe and a first discharge opening are provided on the storage barrel, the first suction pipe communicates with the storage bin and the storage barrel, a funnel-shaped structure is provided at the bottom of the storage barrel, the first discharge opening is provided at the bottom of the funnel-shaped structure, one end of the second suction pipe communicates with the first discharge opening and the other end communicates with the feeding hopper; a magnetic adsorption filtering component is further provided inside the storage barrel, and the magnetic adsorption filtering component is located above the first discharge opening; the high-pressure blower is used to generate a negative pressure suction force inside the storage barrel or the feeding hopper.

2. The automatic feeding device for an injection molding machine according to claim 1, characterized in that, The magnetic adsorption filtering component includes a magnetic frame or a magnetic filter net, and the magnetic frame or the magnetic filter net covers above the first discharge opening.

3. The automatic feeding device for an injection molding machine according to claim 2, wherein The magnetic adsorption filtering component includes a magnetic frame, the magnetic frame includes at least one mounting plate and a plurality of connecting rods, a plurality of mounting holes are spaced on the mounting plate, and the plurality of connecting rods are fixedly arranged in the mounting holes; At least one of the mounting plate and the connecting rods is a magnetic member.

4. The automatic feeding device for an injection molding machine according to claim 3, wherein The plurality of connecting rods are arranged parallel to each other, and two mounting plates are spaced along the length direction of the plurality of connecting rods.

5. The automatic feeding device for an injection molding machine according to claim 3, characterized in that, The magnetic adsorption filtering component includes at least two of the magnetic frames, the funnel-shaped structure has an inclined surface, and one ends of the plurality of connecting rods on the two magnetic frames close to the inclined surface are detachably connected to the inclined surface.

6. The automatic feeding device for an injection molding machine according to claim 1, characterized in that, A conical structure is further provided above the magnetic adsorption filtering component, the inner diameter dimension of the conical structure gradually becomes smaller in the direction away from the first discharge opening, and a gap is provided between the outer periphery of the bottom of the conical structure and the inner side wall of the storage barrel, so that the material falls into the bottom of the storage barrel through the gap.

7. The automatic feeding device for an injection molding machine according to claim 1, characterized in that, A discharge baffle is further provided below the first discharge opening, and the discharge baffle is used to open or close the first discharge opening.

8. The automatic feeding device for an injection molding machine according to claim 7, characterized in that, A driving member is further provided on the storage barrel, the discharge baffle is rotatably arranged on the side wall of the first discharge opening and is in transmission connection with the driving member.

9. The automatic feeding device for an injection molding machine according to claim 1, characterized in that, A filter net is further provided inside the storage barrel, and the outer peripheral surface of the filter net abuts against the inner side wall of the storage barrel.

10. An injection molding machine, characterized in that, It includes the automatic feeding device for an injection molding machine according to any one of claims 1 to 9.

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