Plastic feeding device with mixing structure

Abstract

The utility model relates to a plastic feeding device with a material mixing structure, which comprises a rack, a funnel-shaped feeding hopper is fixedly arranged on the rack, a switching valve for material leakage is arranged at a lower opening of the feeding hopper, a material mixing barrel is arranged in an opening at the upper end of the feeding hopper, the material mixing barrel is rotatably assembled on the rack, and the material mixing barrel is driven by a power device to rotate. The mixing barrel is provided with two independent inner cavities, and lower leakage holes are uniformly distributed in the bottoms of the two inner cavities. The material mixing barrel is arranged in the opening in the upper end of the feeding hopper, the material mixing barrel is rotationally assembled on the rack, the material mixing barrel is provided with the two independent inner cavities, the lower leaking holes are evenly distributed in the bottoms of the two inner cavities, and the material mixing barrel can evenly leak small regenerated plastic particles and small raw plastic particles into the feeding hopper. And small regenerated plastic particles and small raw plastic particles are uniformly mixed, so that the plastic can be recycled, and the quality of a finished plastic product is not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of feeding devices, more particularly to a kind of plastic feeding device with mixing structure, for adding plastic raw materials to injection molding machine or extruder when producing plastic products. BACKGROUND

[0002] Plastics have good processing performance, easy to shape, easy to cut, easy to weld, but plastic also has a serious drawback-degradation, so it is necessary to recycle plastic, to save resources and reduce pollution.

[0003] Recycled plastic refers to the plastic raw material obtained by pretreatment, melting granulation, modification and other physical or chemical methods to process waste plastic, which is the reuse of plastic. But the quality and performance of recycled plastic are not as good as virgin plastic, and the quality of plastic products made of recycled plastic alone is poor, so it is necessary to mix recycled plastic into virgin plastic to save resources and cost, and not affect the quality of the processed plastic products. The commonly used method is to mix virgin plastic and recycled plastic together, and then add them to injection molding machine or extruder for subsequent operation, but it is difficult to mix uniformly under existing conditions, which will affect the quality of the processed plastic products. SUMMARY

[0004] The utility model aims at providing a kind of plastic feeding device with mixing structure to solve the problem that it is difficult to mix recycled plastic and virgin plastic uniformly in the prior art when processing plastic products, which affects the quality of finished plastic products.

[0005] To solve the above problems, the plastic feeding device with mixing structure disclosed by the utility model adopts the following technical scheme: a plastic feeding device with mixing structure, comprising a rack, a funnel-shaped feeding hopper is fixedly arranged on the rack, a switch valve for material leakage is arranged at the lower opening of the feeding hopper, a mixing cylinder is arranged in the upper end opening of the feeding hopper, the mixing cylinder is rotatably assembled on the rack, the mixing cylinder is driven to rotate by a power device, the mixing cylinder has two independent inner cavities, and the bottom of each inner cavity is provided with a lower leakage hole.

[0006] The diameter of the lower leakage hole of one inner cavity is greater than that of the lower leakage hole of the other inner cavity.

[0007] The two inner cavities of the mixing cylinder are separated by a partition plate arranged in the inner cavity of the mixing cylinder.

[0008] The power device comprises a friction ring rotatably arranged on the outer peripheral surface of the mixing cylinder and a friction wheel driven to rotate by a motor, the outer peripheral surface of the friction ring is in frictional engagement with the friction wheel, and the friction wheel is rotatably assembled on the rack.

[0009] The rack comprises a mounting plate, support legs are fixed on the lower surface of the mounting plate, mounting holes are formed in the mounting plate, and the feeding hopper is assembled in the mounting holes.

[0010] The mixing barrel is assembled with the rack through a support frame, the support frame comprises a support plate, mounting legs are fixed on the lower surface of the support plate, the mounting legs are fixed on the mounting plate, and the friction wheel is arranged on the rack through direct assembly on the support frame.

[0011] The motor is fixed on the support plate, the output shaft of the motor extends upward through a through hole formed in the support plate, and the friction wheel is connected with the output shaft of the motor through a shaft coupling.

[0012] The mixing barrel is further provided with a vibration motor.

[0013] The upper end opening of the feeding hopper is provided with the mixing barrel, the mixing barrel has two independent inner cavities, the bottom of each inner cavity is provided with a lower leakage hole, and the two independent inner cavities are respectively used for containing recycled plastics with small particles and virgin plastics with small particles. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed in the embodiment will be briefly introduced as follows:

[0015] Figure 1 It is a structural schematic view of the embodiment of the utility model;

[0016] Figure 2 It is a structural schematic view of the embodiment of the utility model; Figure 1 It is a structural schematic view of the embodiment of the utility model;

[0017] Figure 3 It is a structural schematic view of the embodiment of the utility model; Figure 1 It is a structural schematic view of the embodiment of the utility model;

[0018] Figure 4 It is a structural schematic view of the embodiment of the utility model; Figure 1 It is a structural schematic view of the embodiment of the utility model;

[0019] Legend: 1, frame, 2, upper hopper, 3, mixing barrel, 4, lower hole, 5, partition, 6, friction circle, 7, motor, 8, friction wheel, 9, mounting plate, 10, support leg, 11, mounting hole, 12, support frame, 13, support plate, 14, mounting leg, 15, through hole, 16, through hole. DETAILED DESCRIPTION

[0020] In order to make the technical purpose, technical scheme and beneficial effects of the utility model clearer, the technical scheme of the utility model will be further explained below in combination with the drawings and specific 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, that is, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. The components of the utility model embodiments described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] The specific embodiments of the plastic feeding device with a mixing structure related by the utility model, Figures 1-4 in which it has a frame 1 as the basis, the frame 1 is fixedly provided with a funnel-shaped upper hopper 2, the upper hopper 2 is used to add plastic raw materials into an injection molding machine (not shown in the figure), the injection molding machine does not belong to the structure of the utility model, and needs to be separately provided when used later; a switch valve (not shown in the figure) for discharging is arranged at the lower opening of the upper hopper 2, opening the switch valve, the upper hopper 2 can feed the injection molding machine, closing the switch valve, the upper hopper 2 stops feeding; a mixing barrel 3 is arranged in the upper end opening of the upper hopper 2, the mixing barrel 3 is rotatably assembled on the frame 1, the mixing barrel 3 is driven to rotate by a power device, the mixing barrel 3 can rotate relative to the upper hopper 2, the mixing barrel 3 has two independent inner cavities, the bottom of the two inner cavities is evenly provided with a lower hole 4, the two independent inner cavities are respectively used to contain small particle regenerated plastics and small particle virgin plastics, the regenerated plastics refer to recycled plastics, the virgin plastics are extracted from petroleum, natural gas and other raw materials, which retain the original plastic compound structure and do not undergo the addition or modification of other materials. In use, small particle regenerated plastics and small particle virgin plastics are respectively added to the two independent inner cavities of the mixing barrel 3, the power device is started to drive the mixing barrel 3 to rotate relative to the upper hopper 2, the small particle regenerated plastics and small particle virgin plastics in the mixing barrel 3 will be discharged into the upper hopper 2 through the lower holes 4 of the two inner cavities in a certain proportion and arranged in layers from bottom to top, so that the small particle regenerated plastics and small particle virgin plastics are uniformly distributed in the upper hopper 2, at this time, the inner cavity of the upper hopper 2 is a mixed and uniform plastic raw material, opening the switch valve of the upper hopper 2, the mixed and uniform plastic raw material can be added into the injection molding machine. In other embodiments, the switch valve can be opened first and then the power device is started to drive the mixing barrel 3 to rotate for mixing, so that the mixed and uniform plastic raw material is added into the injection molding machine while mixing.

[0022] Specifically, the diameter of the lower hole 4 of one inner cavity is larger than that of the lower hole 4 of the other inner cavity. The different diameters of the lower holes 4 make the proportions of the recycled plastic and the virgin plastic that leak from the two inner cavities of the mixing cylinder 3 different. In use, the recycled plastic small particles are added to the inner cavity with the smaller diameter lower hole 4, and the virgin plastic small particles are added to the inner cavity with the larger diameter lower hole 4. In this way, more virgin plastic small particles leak from the mixing cylinder 3 than recycled plastic small particles, which not only realizes the recycling of plastic, but also does not affect the quality of the finished plastic product.

[0023] Specifically, the two inner cavities of the mixing cylinder 3 are separated by a partition plate 5 arranged in the inner cavity of the mixing cylinder 3, and the partition plate 5 is in the shape of a straight plate. The partition plate 5 divides the inner cavity of the mixing cylinder 3 into two parts, which are used to hold recycled plastic small particles and virgin plastic small particles, respectively.

[0024] Specifically, the power device is a friction circle 6 fixedly arranged on the outer circumferential surface of the mixing cylinder 3 and a friction wheel 8 driven to rotate by a motor 7. The outer circumferential surface of the friction circle 6 is in frictional engagement with the friction wheel 8, and the friction wheel 8 is rotatably arranged on the frame 1. Starting the motor 7 can drive the friction wheel 8 to rotate, and the rotating friction wheel 8 drives the friction circle 6 to rotate synchronously. Since the friction circle 6 is fixedly arranged on the outer circumferential surface of the mixing cylinder 3, the mixing cylinder 3 rotates with the friction circle 6. When the mixing cylinder 3 rotates, the recycled plastic small particles and the virgin plastic small particles will leak into the feeding hopper 2 according to a predetermined proportion and be uniformly distributed layer by layer from bottom to top. In this way, the recycled plastic small particles and the virgin plastic small particles are uniformly mixed, and the recycled plastic small particles and the virgin plastic small particles are uniformly distributed everywhere in the feeding hopper 2.

[0025] Specifically, the frame 1 has a mounting plate 9, the lower surface of the mounting plate 9 is fixed with support legs 10, the support legs 10 are used to support the frame 1 and the objects placed on the frame 1, and the mounting plate 9 is provided with mounting holes 11. The feeding hopper 2 is assembled in the mounting holes 11, the feeding hopper 2 is in the shape of a funnel with a large upper end and a small lower end, the feeding hopper 2 penetrates the mounting holes 11 from top to bottom, the upper end of the feeding hopper 2 is above the mounting plate 9, and the lower opening of the feeding hopper 2 overhangs below the mounting plate 9.

[0026] Specifically, the mixing cylinder 3 is assembled with the frame 1 through a support frame 12. The support frame 12 has a support plate 13, the lower surface of the support plate 13 is fixed with mounting legs 14, and the mounting legs 14 are fixed on the mounting plate 9. In this way, the support frame 12 is fixed on the frame 1, the support plate 13 is provided with through holes 15, the mixing cylinder 3 penetrates the through holes 15 from top to bottom and is rotatably assembled with the through holes 15, the friction circle 6 on the outer circumferential surface of the mixing cylinder 3 is rotatably arranged above the support plate 13, and the friction wheel 8 is directly assembled on the frame 1 through the support frame 12.

[0027] Specifically, the motor 7 is fixed on the support plate 13, the motor 7 is fixed below the support plate 13, the friction wheel 8 is fixed above the support plate 13, the output shaft of the motor 7 is upwardly protruding from the through hole 16 formed on the support plate 13, the output shaft is in rotational cooperation with the through hole 16, and the friction wheel 8 is in driving connection with the output shaft of the motor 7 through a shaft coupling (not shown in the figure).

[0028] Specifically, a vibration motor (not shown in the figure) is further fixed on the mixing barrel.

[0029] In the embodiment, the lower leakage hole of one inner cavity is larger than that of the other inner cavity, and in other embodiments, the lower leakage holes of the two inner cavities can be set to be the same size, and the number of the lower leakage holes of one inner cavity is more than that of the other inner cavity.

[0030] In the embodiment, the two inner cavities of the mixing barrel are separated by a partition plate arranged in the inner cavity of the mixing barrel, which is an optimized technical solution, and in other embodiments, the mixing barrel can be set as two half-cylindrical barrels, each having an inner cavity, and the two half-cylindrical barrels are fixed together to form a cylindrical mixing barrel.

[0031] In the embodiment, the power device includes a friction circle arranged on the outer circumferential surface of the mixing barrel and a friction wheel driven to rotate by the motor, and in other embodiments, the friction circle and the friction wheel can be replaced by intermeshing gears.

[0032] In the embodiment, the rack includes a mounting plate, and the support legs are fixed on the lower surface of the mounting plate, which is an optimized technical solution, and in other embodiments, the mounting plate can be replaced by an annular frame, and the support legs are fixed below the annular frame.

[0033] In the embodiment, the mixing barrel is assembled with the rack through the support frame, which is an optimized technical solution, and in other embodiments, the support frame can be omitted, and an everted edge is arranged at the upper end opening of the feeding hopper to replace the support frame.

[0034] In the embodiment, the motor is fixed on the support plate, which is an optimized technical solution, and in other embodiments, the motor can be fixed on the mounting leg, the output shaft of the motor is upwardly protruding from the through hole formed on the support plate, and the friction wheel is in driving connection with the output shaft of the motor through a shaft coupling.

[0035] The feeding hopper, the motor, the friction wheel and the shaft coupling in the above embodiments are all commercially available parts, which belong to the prior art.

[0036] Finally, it should be noted that the above embodiments are only used for illustration and do not limit the technical solutions of the present application, any equivalent replacement, modification or partial replacement of the present application without departing from the spirit and scope of the present application shall be covered within the scope of protection of the claims of the present application.

Claims

1. A plastic material feeding device with a mixing structure, comprising a frame, a funnel-shaped feeding hopper fixedly arranged on the frame, and a switch valve arranged at the lower opening of the feeding hopper for discharging material, characterized in that, The upper end opening of the upper hopper is provided with a mixing cylinder, the mixing cylinder is rotatably assembled on the frame, the mixing cylinder is driven to rotate by a power device, the mixing cylinder has two independent inner cavities, and the bottoms of the two inner cavities are provided with lower leakage holes.

2. The plastic feeding device with mixing structure according to claim 1, characterized in that, The diameter of the lower leakage hole of one inner cavity is greater than that of the lower leakage hole of the other inner cavity.

3. The plastic feeding device with mixing structure according to claim 2, characterized in that, The two inner cavities of the mixing cylinder are separated by a partition plate arranged in the inner cavity of the mixing cylinder.

4. The plastic loading device with a mixing structure according to claim 1 or 2 or 3, characterized in that, The power device comprises a friction circle rotatably arranged on the outer circumferential surface of the mixing cylinder and a friction wheel rotatably driven by a motor, the outer circumferential surface of the friction circle is in frictional cooperation with the friction wheel, and the friction wheel is rotatably assembled on the frame.

5. The plastic feeding device with mixing structure according to claim 4, characterized in that, The frame comprises a mounting plate, the lower surface of the mounting plate is fixed with supporting legs, and the mounting plate is provided with a mounting hole, and the upper hopper is assembled in the mounting hole.

6. The plastic feeding device with mixing structure according to claim 5, characterized in that, The mixing cylinder is assembled with the frame through a support frame, the support frame comprises a support plate, the lower surface of the support plate is fixed with mounting legs, the mounting legs are fixed on the mounting plate, and the friction wheel is arranged on the frame through direct assembly on the support frame.

7. The plastic loading device with a mixing structure according to claim 6, characterized in that, The motor is fixed on the support plate, the output shaft of the motor extends upward through a through hole arranged on the support plate, and the friction wheel is connected with the output shaft of the motor through a coupling.

8. The plastic feeding device with mixing structure according to claim 1, wherein, The mixing cylinder is further provided with a vibration motor.

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