Molding compound production raw material premixing device

Abstract

The utility model discloses a molding compound production raw material premixing device, which belongs to the technical field of premixing devices and comprises a premixing barrel, a support is fixedly connected to the outside of the premixing barrel in a surrounding manner, a transmission ring is fixedly connected to the top end of the premixing barrel, and a screening component is mounted at the top end of the transmission ring. The screening assembly is used for screening raw materials, the top end of the premixing barrel is fixedly connected with a top plate, and the inner wall of a through hole formed in the middle of the top plate is fixedly connected with a plurality of evenly-distributed connecting rods. Intermittent interaction of the sliding frames in the screening barrel is achieved, the production efficiency is improved, a plurality of evenly-distributed mixing assemblies are arranged in the premixing barrel, raw materials are evenly mixed through rotation of a stirring rod and a spiral conveying blade, and the product quality and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of premixing devices, and more specifically to a premixing device for raw materials in the production of molding plastics. Background Art

[0002] Molding compound production is a process of producing plastic products using injection molding. In the molding compound production process, plastic particles are heated and melted and then injected into the mold. After cooling and solidification, they are taken out to form various plastic products, such as parts, containers, packaging, etc. Molding compound production is usually used in mass production. It has the characteristics of high efficiency, precision, and low cost. It is widely used in various fields, such as automobile manufacturing, electronic products, daily necessities, etc.

[0003] The Chinese patent authorization announcement number: CN216782310U provides a raw material premixing device for plastic production. This patent provides rotational power to the variable position stirring frame module through a power module, and the compression structure drives the telescopic stirring frame structure to rotate. During the rotation process, the telescopic stirring frame structure completes the telescopic action. At the same time, as the rotation speed of the telescopic stirring frame structure increases, the distance between the telescopic stirring frame structure and the compression structure decreases, and the bottom material guiding module moves accordingly to guide the accumulated plastic, and then under the action of the elastic member, the variable position stirring frame module is reset. The device realizes the dual effects of variable position stirring and bottom material guiding, and enhances the mixing effect of plastics. In view of the problems of uneven raw material mixing, inconsistent particle size and high impurity content in traditional premixing devices, the manual operation is cumbersome, which reduces production efficiency and product quality.

[0004] Therefore, in view of the above problems, a device for premixing raw materials for producing molding compound is proposed. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a raw material premixing device for molding compound production, which can achieve uniform mixing and screening of raw materials, thereby improving product quality and production efficiency.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A device for premixing raw materials for molding compound production comprises a premixing barrel, the outer enclosure of the premixing barrel is fixedly connected to a bracket, the top of the premixing barrel is fixedly connected to a transmission ring, the top of the transmission ring is installed with a screening assembly, the screening assembly is used to implement screening processing of raw materials, the top of the premixing barrel is fixedly connected to a top plate, the inner wall of a through hole arranged in the middle of the top plate is fixedly connected to a plurality of evenly distributed connecting rods, one end of the plurality of connecting rods is fixedly connected to a fixing plate, and a plurality of evenly distributed mixing assemblies are arranged in the premixing barrel.

[0010] Furthermore, the screening component includes a screening barrel, the inner wall of which is slidably connected to a plurality of evenly distributed sliding frames, wherein screening nets are embedded in the plurality of sliding frames, and the filter holes of the plurality of screening nets are arranged to become smaller from top to bottom.

[0011] Furthermore, a plurality of evenly distributed servo motors are installed on the inner wall of the screening barrel and at the bottom end of the sliding frame, and a cam is fixedly connected to the output end of the servo motor, and the cam is in contact with the sliding frame.

[0012] Furthermore, the screening barrel is provided with a plurality of screening holes which are evenly distributed and matched with the screening net, the screening holes and the screening net are arranged on the same central axis, and a collecting plate is fixedly connected to the outer end of the screening barrel and located on one side of the screening holes.

[0013] Furthermore, a transmission hole is provided on the transmission ring, and the upper and lower ends of the transmission ring are fixedly connected to the screening barrel and the premixing barrel respectively.

[0014] Furthermore, a motor is installed at the bottom end of the fixed plate, a stirring rod is fixedly connected to the output end of the motor, and the bottom end of the stirring rod is rotatably connected to the bottom end of the premixing barrel.

[0015] Furthermore, a plurality of evenly distributed turning motors are installed at the bottom end of the top plate, a plurality of evenly distributed turning mixing cylinders are installed in the premixing barrel, and the lower half of the turning mixing cylinders is hollowed out.

[0016] Furthermore, the output end of the turning motor is fixedly connected with a spiral material transfer blade, and the spiral material transfer blade is arranged in the turning mixing cylinder. The top and outer end of the turning mixing cylinder are respectively fixedly connected with a protective ring and a guide plate.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This solution uses a multi-layer screening mesh through the screening component, and the filter holes gradually become smaller from top to bottom, making the screening more detailed and improving the screening efficiency and screening quality.

[0020] (2) This solution introduces a servo motor and a cam mechanism to achieve intermittent interaction of the sliding frame in the screening barrel. The automated operation reduces manual intervention and improves production efficiency.

[0021] (3) This solution achieves uniform mixing of raw materials by arranging multiple evenly distributed mixing components in the premixing barrel and rotating the stirring rod and the spiral conveying blade, thereby improving product quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of a raw material premixing device for molding compound production in the utility model;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the screening component in the utility model;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the transmission ring in the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the premixing barrel in the utility model;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the mixing component in the utility model.

[0027] Description of the numbers in the figure:

[0028] 1. Premixing barrel; 2. Screening assembly; 3. Transmission ring; 4. Mixing assembly; 11. Bracket; 12. Top plate; 13. Fixed plate; 14. Stirring rod; 21. Screening barrel; 22. Sliding frame; 23. Screening net; 25. Collecting plate; 31. Transmission hole; 41. Mixing drum; 42. Turning motor; 43. Spiral transfer blade; 44. Protection ring; 45. Guide plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Embodiment 1:

[0033] See also Figure 1-5 A device for premixing raw materials for molding plastic production includes a premixing barrel 1. The outer enclosure of the premixing barrel 1 is fixedly connected with a bracket 11, and the top of the premixing barrel 1 is fixedly connected with a transmission ring 3. A screening component 2 is installed on the top of the transmission ring 3. The screening component 2 is used to realize the screening of raw materials. The top of the premixing barrel 1 is fixedly connected with a top plate 12. The inner wall of the through hole arranged in the middle of the top plate 12 is fixedly connected with a plurality of evenly distributed connecting rods, and one end of the plurality of connecting rods is fixedly connected with a fixing plate 13. A plurality of evenly distributed mixing components 4 are arranged in the premixing barrel 1.

[0034] Among them, this scheme adopts a multi-layer screening net 23 through the screening component 2, and the filter holes gradually become smaller from top to bottom, so that the screening is more delicate, and the screening efficiency and screening quality are improved. At the same time, a servo motor and a cam mechanism are introduced to realize the intermittent interaction of the sliding frame 22 in the screening barrel 21. The automated operation reduces manual intervention and improves production efficiency. In addition, by setting a plurality of evenly distributed mixing components 4 in the premixing barrel 1, the raw materials are evenly mixed through the rotation of the stirring rod 14 and the spiral feeding blade 43, thereby improving product quality and production efficiency.

[0035] The screening assembly 2 includes a screening barrel 21, the inner wall of which is slidably connected to a plurality of evenly distributed sliding frames 22, wherein screening nets 23 are inlaid in the plurality of sliding frames 22, and the filter holes of the plurality of screening nets 23 are successively smaller from top to bottom, and a plurality of evenly distributed servo motors are installed on the inner wall of the screening barrel 21 and at the bottom end of the sliding frame 22, and a cam is fixedly connected to the output end of the servo motor, and the cam abuts against the sliding frame 22, and a plurality of evenly distributed screening holes matching the screening nets 23 are opened on the screening barrel 21, and the screening holes and the screening nets 23 are arranged on the same central axis, and a collecting plate 25 is fixedly connected to the outer end of the screening barrel 21 and at one side of the screening hole.

[0036] Among them, for the production of molding materials, the raw materials are transported to the screening net 23 on the screening barrel 21 through a feeding device or manually. At this time, multiple servo motors installed on the inner wall of the screening barrel 21 are started, so that the output end of the servo motor drives the cam to rotate, so that when the cam collides with the sliding frame 22, the sliding frame 22 interacts intermittently, thereby driving the shaking of the screening net 23 embedded in the middle of the sliding frame 22. The shaking of the screening net 23 can intercept large particles or impurities in the raw materials. At the same time, when shaking, particles that meet the standard size also fall through the screening net 23, thereby improving its screening efficiency.

[0037] By arranging the filter holes on multiple screening nets 23 to become smaller in size from top to bottom, the screening is made more detailed and the screening quality is improved. At the same time, the screening pressure of each layer of the screening net 23 is shared to further improve its efficiency. By arranging a collecting plate 25 fixedly connected to the outer end of the screening barrel 21 and located on one side of the screening hole, the large particles or impurities are collected and discharged through the collecting plate 25 through the shaking of the screening net 23, which is convenient for further processing.

[0038] A transmission hole 31 is provided on the transmission ring 3, and the upper and lower ends of the transmission ring 3 are fixedly connected to the screening barrel 21 and the premixing barrel 1 respectively. A motor is installed at the bottom end of the fixed plate 13, and a stirring rod 14 is fixedly connected to the output end of the motor. The bottom end of the stirring rod 14 is rotatably connected to the bottom end of the premixing barrel 1. A plurality of evenly distributed flipping motors 42 are installed at the bottom end of the top plate 12. A plurality of evenly distributed flipping mixing drums 41 are installed in the premixing barrel 1. The lower half of the flipping mixing drum 41 is hollowed out. A spiral material transfer blade 43 is fixedly connected to the output end of the flipping motor 42. The spiral material transfer blade 43 is arranged in the flipping mixing drum 41. The top and outer ends of the flipping mixing drum 41 are respectively fixedly connected to a protective ring 44 and a guide plate 45.

[0039] Among them, when the screened raw materials enter the through hole set on the top plate 12 and enter the premixing barrel 1 through the transmission hole 31 opened in the transmission ring 3, the motor is started by turning on the switch of multiple flipping motors 42, so that the motor drives the stirring rod 14 to rotate to achieve stirring of the raw materials. At the same time, the flipping motor 42 drives the spiral transfer blade 43 to rotate, so that the principle that can drive the sediment in the bottom end of the premixing barrel 1 is transported to the upper side again through the rotation of the spiral transfer blade 43, and finally discharged by the guide plate 45 and rotated by the stirring rod 14 again, so that the mixing is more uniform.

[0040] The working principle of the utility model is:

[0041] The raw materials are conveyed to the screening net 23 on the screening barrel 21 by a feeding device or manually. At this time, multiple servo motors installed on the inner wall of the screening barrel 21 are started, so that the output end of the servo motor drives the cam to rotate, so that when the cam collides with the sliding frame 22, the sliding frame 22 is intermittently interacted, thereby driving the shaking of the screening net 23 embedded in the middle of the sliding frame 22. The shaking of the screening net 23 can intercept large particles or impurities in the raw materials. At the same time, when shaking, the particles that meet the standard size also pass through the screening net 23 and fall, so as to improve its screening efficiency;

[0042] When the screened raw materials pass through the transmission hole 31 opened in the transmission ring 3 and enter the through hole set on the top plate 12 and enter the premixing barrel 1, by starting the motor and the switches of multiple flipping motors 42, the motor drives the stirring rod 14 to rotate to achieve stirring of the raw materials. At the same time, the flipping motor 42 drives the spiral transfer blade 43 to rotate, so that the principle that can drive the sediment in the bottom end of the premixing barrel 1 is transported to the upper side again through the rotation of the spiral transfer blade 43, and finally discharged by the guide plate 45 and rotated by the stirring rod 14 again, so that the mixing is more uniform.

[0043] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A device for premixing raw materials for molding compound production, comprising a premixing barrel (1), characterized in that: The premixing barrel (1) is surrounded by a bracket (11) fixedly connected thereto, and a transmission ring (3) is fixedly connected to the top of the premixing barrel (1), a screening assembly (2) is installed on the top of the transmission ring (3), and the screening assembly (2) is used to implement screening processing of raw materials. The top of the premixing barrel (1) is fixedly connected to a top plate (12), and a plurality of evenly distributed connecting rods are fixedly connected to the inner wall of a through hole arranged in the middle of the top plate (12), and one end of the plurality of connecting rods is fixedly connected to a fixing plate (13), and a plurality of evenly distributed mixing assemblies (4) are arranged in the premixing barrel (1).

2. A molding compound production raw material premixing device according to claim 1, characterized in that: The screening component (2) comprises a screening barrel (21), the inner wall of the screening barrel (21) being slidably connected to a plurality of evenly distributed sliding frames (22), the plurality of sliding frames (22) being inlaid with screening nets (23), the filter holes of the plurality of screening nets (23) being arranged to become smaller from top to bottom.

3. A molding compound production raw material premixing device according to claim 2, characterized in that: A plurality of evenly distributed servo motors are installed on the inner wall of the screening barrel (21) and at the bottom end of the sliding frame (22); a cam is fixedly connected to the output end of the servo motor, and the cam abuts against the sliding frame (22).

4. A molding compound production raw material premixing device according to claim 2, characterized in that: The screening barrel (21) is provided with a plurality of screening holes which are evenly distributed and match the screening net (23); the screening holes and the screening net (23) are arranged on the same central axis; and a collecting plate (25) is fixedly connected to the outer end of the screening barrel (21) and located on one side of the screening holes.

5. A molding compound production raw material premixing device according to claim 2, characterized in that: The transmission ring (3) is provided with a transmission hole (31), and the upper and lower ends of the transmission ring (3) are respectively fixedly connected to the screening barrel (21) and the premixing barrel (1).

6. A molding compound production raw material premixing device according to claim 1, characterized in that: A motor is installed at the bottom end of the fixed plate (13), and a stirring rod (14) is fixedly connected to the output end of the motor. The bottom end of the stirring rod (14) is rotatably connected to the bottom end of the premixing barrel (1).

7. A molding compound production raw material premixing device according to claim 1, characterized in that: A plurality of evenly distributed turning motors (42) are installed at the bottom end of the top plate (12), and a plurality of evenly distributed turning mixing cylinders (41) are installed in the premixing barrel (1), wherein the lower half of the turning mixing cylinder (41) is hollowed out.

8. A device for premixing raw materials for molding compound production according to claim 7, characterized in that: The output end of the turning motor (42) is fixedly connected with a spiral material transfer blade (43), and the spiral material transfer blade (43) is arranged in the turning mixing cylinder (41). The top end and the outer end of the turning mixing cylinder (41) are respectively fixedly connected with a protective ring (44) and a guide plate (45).

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