A mixing device for injection molding structural parts that facilitates full mixing of materials

Abstract

The utility model discloses a mixing device for injection molding structural parts that facilitates full mixing of materials, including a barrel, an inner barrel and a stirring assembly, wherein the inner barrel is rotatably connected in the barrel, and the stirring assembly is arranged inside and at the bottom of the inner barrel; the stirring assembly includes a first motor, a gear, a connecting rod and a second motor; the first motor is fixedly connected in the barrel, and the driving end of the first motor is fixedly connected to a rotating rod; the gear is fixedly connected to one end of the rotating rod, and one side of the gear is rotatably connected to a rotating block; the connecting rod is fixedly connected to the rotating block, and the bottom end of the connecting rod is fixedly connected to a stirring plate; the second motor is fixedly connected in the barrel. In the utility model, by setting up a stirring assembly, a larger vortex and shear force can be generated through vertical stirring up and down, thereby effectively mixing different components of the material evenly. This stirring method is suitable for most materials with high viscosity.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a material mixing device for injection molding structural parts which is convenient for fully mixing materials. Background Art

[0002] The mixing device for injection molded structural parts is a key equipment in the injection molding production process. It is responsible for evenly mixing different types of plastic raw materials and additives to meet the injection molding process requirements for raw material quality and performance. Through the effective operation of the mixing device, the uniformity and stability of the raw materials can be ensured, thereby improving the quality and production efficiency of injection molded structural parts.

[0003] The utility model with the authorization publication number CN213006231U provides an injection molding raw material mixing device, which belongs to the technical field of "injection molding". The protected claim is: "It includes a mixing barrel, and the mixing barrel is provided with three. A bracket is installed on the top of the mixing barrel by bolts, and a stirring motor is installed in the center of the bracket by bolts. A first stirring mechanism is installed at the output end of the stirring motor, and a driving gear is installed at the upper end of the stirring shaft of the first stirring mechanism. A second stirring mechanism is installed on each side of the first stirring mechanism, and a driven gear is installed at the upper end of the second stirring mechanism. The driving gears are respectively meshed with the driven gears on both sides. A feed hopper is installed on the central front side of the bracket, and three feed pipes are connected to the lower end of the feed hopper. The mixing work is increased from one mixing barrel to three mixing barrels at the same time, and the required injection molding raw materials are divided into three parts, and the mixing is more sufficient and faster, which greatly improves the work efficiency and saves time."

[0004] In this device, although the material can be stirred, the device adopts a horizontal stirring method. For materials with higher viscosity, the mixing effect of horizontal stirring is poor. For this reason, we propose a mixing device for injection molding structural parts that is convenient for fully mixing materials. Utility Model Content

[0005] The utility model aims to provide a mixing device for injection molding structural parts which is convenient for fully mixing materials, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A mixing device for injection molding structural parts that facilitates full mixing of materials, comprising a barrel, an inner barrel and a stirring assembly, wherein the inner barrel is rotatably connected to the barrel, and the stirring assembly is arranged inside and at the bottom of the inner barrel;

[0008] The stirring assembly includes a first motor, a gear, a connecting rod and a second motor; the first motor is fixedly connected in the cylinder, and the driving end of the first motor is fixedly connected to a rotating rod; the gear is fixedly connected to one end of the rotating rod, and one side of the gear is rotatably connected to a rotating block; the connecting rod is fixedly connected to the rotating block, and the bottom end of the connecting rod is fixedly connected to a stirring plate; the second motor is fixedly connected in the cylinder, and the driving end of the second motor is fixedly connected to a worm, and the bottom of the inner cylinder is fixedly connected to a worm wheel, and the worm is meshingly connected to the worm wheel.

[0009] Preferably, the first motor, the rotating rod, the rotating block, the connecting rod and the stirring plate are arranged in two groups, and the two groups are arranged opposite to each other.

[0010] Preferably, the two stirring plates are both semicircular in shape, and both stirring plates are hollowed out.

[0011] Preferably, a plurality of leakage holes are provided on the inner bottom of the inner cylinder, and the plurality of leakage holes are arranged around the central axis of the inner cylinder.

[0012] Preferably, a discharge funnel is fixedly connected to the bottom end of the cylinder, and a discharge pipe is fixedly connected to the bottom end of the discharge funnel.

[0013] Preferably, a feeding funnel is fixedly connected to the top of the cylinder, the bottom of the feeding funnel extends into the inner cylinder, and a splash plate is fixedly connected to the bottom of the feeding funnel.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By setting up a stirring assembly, starting two first motors, the two first motors drive the rotating rod to rotate, that is, drive the two gears to rotate, the rotation of the two gears drives the two rotating blocks to rotate, the rotation of the two rotating blocks drives the two connecting rods and the stirring plate to do reciprocating motion, and the rotational motion of the gears is converted into up and down linear motion. In this way, through the up and down vertical stirring, a larger eddy current and shear force can be generated, thereby effectively mixing the different components of the material evenly. This stirring method is suitable for most materials with high viscosity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the stirring assembly in the utility model;

[0018] Figure 3 In the utility model Figure 2 A magnified image of point A;

[0019] Figure 4 This utility model Figure 1 Front view of .

[0020] In the figure: 1. cylinder; 2. inner cylinder; 3. stirring assembly; 301. first motor; 302. rotating rod; 303. gear; 304. rotating block; 305. connecting rod; 306. stirring plate; 307. second motor; 308. worm; 309. worm wheel; 4. leakage hole; 501. discharge funnel; 502. discharge pipe; 601. feed funnel; 602. splash plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments 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 in 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.

[0022] Embodiment 1

[0023] like Figure 1-4 As shown, in this embodiment, a mixing device for injection molding structural parts that facilitates full mixing of materials includes a barrel 1, an inner barrel 2 and a stirring assembly 3, the inner barrel 2 is rotatably connected in the barrel 1, and the stirring assembly 3 is arranged inside and at the bottom of the inner barrel 2;

[0024] The stirring assembly 3 includes a first motor 301, a gear 303, a connecting rod 305 and a second motor 307; the first motor 301 is fixedly connected in the cylinder 1, and the driving end of the first motor 301 is fixedly connected to the rotating rod 302; the gear 303 is fixedly connected to one end of the rotating rod 302, and one side of the gear 303 is rotatably connected to the rotating block 304; the connecting rod 305 is fixedly connected to the rotating block 304, and the bottom end of the connecting rod 305 is fixedly connected to the stirring plate 306; the second motor 307 is fixedly connected in the cylinder 1, and the driving end of the second motor 307 is fixedly connected to the worm 308, and the bottom of the inner cylinder 2 is fixedly connected to the worm wheel 309, and the worm 308 is meshingly connected with the worm wheel 309.

[0025] During specific implementation, the two first motors 301 are started, and the two first motors 301 drive the rotating rod 302 to rotate, that is, the two gears 303 are driven to rotate, and the rotation of the two gears 303 drives the two rotating blocks 304 to rotate, and the rotation of the two rotating blocks 304 drives the two connecting rods 305 and the stirring plate 306 to do reciprocating motion, which is converted into an up and down linear motion through the rotational motion of the gears 303. In this way, through vertical stirring up and down, larger eddy currents and shear forces can be generated, thereby effectively mixing different components of the material evenly. This stirring method is suitable for most materials with high viscosity.

[0026] In addition, it should be noted that when the stirring plate 306 is operating in the inner cylinder 2, it will not contact the cylinder wall and the cylinder bottom of the inner cylinder 2, so as to avoid the stirring plate 306 from colliding and causing damage.

[0027] like Figure 2 As shown, further, the shapes of the two stirring plates 306 are both set to be semicircular, and the insides of the two stirring plates 306 are both hollow.

[0028] In specific implementation, it is set to be semicircular to match the shape of the inner cylinder 2, and the hollow setting enhances the stirring effect.

[0029] like Figure 2 As shown, further, a plurality of leakage holes 4 are opened at the inner bottom of the inner tube 2 , and the plurality of leakage holes 4 are arranged around the central axis of the inner tube 2 .

[0030] During specific implementation, the stirred material falls into the discharge funnel 501 through the multiple leak holes 4.

[0031] like Figure 4 As shown, further, a discharge funnel 501 is fixedly connected to the bottom end of the cylinder 1 , and a discharge pipe 502 is fixedly connected to the bottom end of the discharge funnel 501 .

[0032] During specific implementation, the material is discharged from the device through the discharge pipe 502.

[0033] like Figure 1 As shown, further, a feeding funnel 601 is fixedly connected to the top of the cylinder 1, the bottom of the feeding funnel 601 extends into the inner cylinder 2, and a splash plate 602 is fixedly connected to the bottom of the feeding funnel 601.

[0034] In specific implementation, the bottom of the feeding funnel 601 extends into the inner tube 2, and its bottom does not contact the wall of the inner tube 2, and does not contact the wall of the cylinder body 1. The splash plate 602 can be provided to prevent splashing.

[0035] Working principle: first, the material is input into the inner cylinder 2 through the feeding funnel 601, and then the two first motors 301 are started. The two first motors 301 drive the rotating rod 302 to rotate, that is, drive the two gears 303 to rotate. The rotation of the two gears 303 drives the two rotating blocks 304 to rotate. The rotation of the two rotating blocks 304 drives the two connecting rods 305 and the stirring plate 306 to do reciprocating motion, which is converted into an up and down linear motion through the rotational motion of the gear 303. In this way, through the vertical stirring up and down, a large eddy current and shear force can be generated, thereby effectively mixing the different components of the material evenly. This stirring method is suitable for most materials with high viscosity. At the same time, the second motor 307 is started, and the second motor 307 drives the worm 308 to rotate, the worm 308 drives the worm wheel 309 to rotate, and the worm wheel 309 drives the inner cylinder 2 to rotate. The rotation of the inner cylinder 2 can make the material stirred more evenly. The stirred material falls into the discharge funnel 501 through multiple leak holes 4, and then is discharged from the device through the discharge pipe 502.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mixing device for injection molding structural parts that facilitates full mixing of materials, comprising a barrel (1), an inner barrel (2) and a stirring assembly (3), characterized in that: The inner cylinder (2) is rotatably connected in the cylinder body (1), and the stirring assembly (3) is arranged inside and at the bottom of the inner cylinder (2); The stirring assembly (3) comprises a first motor (301), a gear (303), a connecting rod (305) and a second motor (307); the first motor (301) is fixedly connected in the cylinder (1), and the driving end of the first motor (301) is fixedly connected to the rotating rod (302); the gear (303) is fixedly connected to one end of the rotating rod (302), and one side of the gear (303) is rotatably connected to the rotating block (304); the connecting rod (305) is fixedly connected to the rotating block (304), and the bottom end of the connecting rod (305) is fixedly connected to the stirring plate (306); the second motor (307) is fixedly connected in the cylinder (1), and the driving end of the second motor (307) is fixedly connected to the worm (308), and the bottom of the inner cylinder (2) is fixedly connected to the worm wheel (309), and the worm (308) is meshingly connected to the worm wheel (309).

2. A mixing device for injection molding structural parts that facilitates full mixing of materials according to claim 1, characterized in that: The number of the first motor (301), the rotating rod (302), the rotating block (304), the connecting rod (305) and the stirring plate (306) is set to two groups, and the two groups are arranged opposite to each other.

3. A mixing device for injection molding structural parts that facilitates full mixing of materials according to claim 1, characterized in that: The two stirring plates (306) are both semicircular in shape, and both stirring plates (306) are hollowed out.

4. A mixing device for injection molding structural parts that facilitates full mixing of materials according to claim 1, characterized in that: The inner bottom of the inner cylinder (2) is provided with a plurality of leakage holes (4), and the plurality of leakage holes (4) are arranged around the central axis of the inner cylinder (2).

5. A mixing device for injection molding structural parts that facilitates full mixing of materials according to claim 1, characterized in that: The bottom end of the cylinder (1) is fixedly connected to a discharge funnel (501), and the bottom end of the discharge funnel (501) is fixedly connected to a discharge pipe (502).

6. A mixing device for injection molded structural parts that facilitates full mixing of materials according to claim 1, characterized in that; A feeding funnel (601) is fixedly connected to the top of the cylinder (1), the bottom of the feeding funnel (601) extends into the inner cylinder (2), and a splash plate (602) is fixedly connected to the bottom of the feeding funnel (601).

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