Plastic plate extrusion device with mixing function

Abstract

The utility model belongs to the technical field of plastic processing, and particularly relates to a plastic plate extrusion device with a mixing function. Comprising a rack, a conveying cylinder arranged above the rack and a conveying screw rod rotatably arranged in the conveying cylinder, and further comprises a mixing mechanism, comprising a mixing tank arranged above a conveying cylinder, a feed hopper arranged at the top of the mixing tank, a discharge hopper arranged at the bottom of the mixing tank and communicated with the conveying cylinder, and a mixing assembly arranged in the mixing tank and used for uniformly mixing plastic raw materials; the additive distributor comprises a distribution box arranged in the mixing tank, an additive feeding hopper with one end communicated into the distribution box and the other end extending out of the mixing tank, and a connecting piece arranged between the rotating shaft and the distribution box. The utility model aims to provide a plastic plate extrusion device capable of efficiently mixing plastic raw materials and additives.

Description

Technical Field

[0001] This utility model belongs to the field of plastic processing technology, and specifically refers to a plastic sheet extrusion device with a mixing function. Background Technology

[0002] Plastic sheets are ubiquitous in modern industry and daily life. In the construction industry, they are commonly used for roof waterproofing, wall insulation, and interior decoration, effectively improving the performance and aesthetics of buildings thanks to their excellent waterproof, heat insulation, and decorative properties. In the packaging industry, plastic sheets are used to make various packaging boxes and pallets, providing reliable protection and convenient transportation for products. Furthermore, in industries such as automobile manufacturing and electronics, plastic sheets are indispensable materials due to their lightweight, high strength, and low cost, and are widely used in parts manufacturing and casing encapsulation.

[0003] However, existing plastic sheet extrusion equipment suffers from numerous problems in actual production. Taking the common screw extruder as an example, when mixing plastic raw materials and additives, the simple mixing structure design relies solely on the screw rotation to propel the material forward, making it difficult to achieve thorough mixing. This results in uneven distribution of components within the molded plastic sheet, leading to significant differences in performance. For instance, in applications requiring high strength, uneven mixing can cause insufficient strength in some areas of the plastic sheet, making it prone to cracking, deformation, and other quality problems, severely impacting product quality and production efficiency. Furthermore, existing extrusion equipment cannot evenly distribute additives. Therefore, developing an extrusion device capable of efficiently mixing plastic raw materials and additives is urgently needed. Utility Model Content

[0004] The purpose of this invention is to provide a plastic sheet extrusion device that can efficiently mix plastic raw materials and additives, so as to alleviate the problems mentioned in the background art.

[0005] The purpose of this utility model is achieved as follows: a plastic sheet extrusion device with a mixing function includes a frame, a conveying cylinder disposed above the frame, and a rotatable conveying screw disposed inside the conveying cylinder, and further includes:

[0006] The mixing mechanism includes a mixing tank located above the conveying cylinder, a feed hopper located at the top of the mixing tank, a discharge hopper located at the bottom of the mixing tank and connected to the conveying cylinder, and a mixing component located inside the mixing tank for uniformly mixing plastic raw materials.

[0007] An additive dispenser includes a dispensing box disposed inside a mixing tank, an inlet hopper with one end connected to the dispensing box and the other end extending outside the mixing tank, and a connector disposed between a rotating shaft and the dispensing box.

[0008] The present invention is further configured such that the hybrid component includes:

[0009] A rotating shaft is positioned inside the mixing tank along its axial direction.

[0010] The mixing blades are mounted on the rotating shaft;

[0011] A drive motor is located at the top of the mixing tank. The drive motor is used to drive the rotating shaft, thereby causing the mixing blades to rotate inside the mixing tank.

[0012] The present invention is further configured such that the hybrid blade comprises:

[0013] Mixing rods are evenly distributed on the inner wall of the mixing tank;

[0014] A mixing plate is arranged in a circumferential array along the rotation axis, and the mixing plate has a mixing opening adapted to the mixing rod;

[0015] The first fixing sleeve is used to fix the mixing plate on the rotating shaft;

[0016] The axis of the mixing rod is perpendicular to the axis of the rotation axis.

[0017] The present invention is further configured such that the connecting member includes:

[0018] The second fixed sleeve is fitted onto the rotating shaft;

[0019] The connecting rod is connected at one end to the second fixed sleeve and at the other end to the distribution box.

[0020] The present invention is further configured such that the dispensing box includes:

[0021] The box body is located inside the mixing tank and on one side of the rotating shaft;

[0022] The first dispensing port is located at the bottom of the box.

[0023] The second distribution port is evenly distributed along the circumference of the box.

[0024] The present invention is further configured such that the top of the mixing tank has a rotating opening for the feed hopper to rotate circumferentially.

[0025] The present invention is further configured such that the feed hopper, discharge hopper and agent feed hopper are all funnel-shaped structures that are larger at the top and smaller at the bottom.

[0026] The present invention is further configured such that a support base for supporting the mixing tank is provided on the top of the frame.

[0027] By adopting the above technical solution, the beneficial effects that this utility model can achieve are:

[0028] 1. By evenly arranging mixing rods on the inner wall of the mixing tank, and arranging mixing plates in a circumferential array along the rotation axis with mixing openings adapted to the mixing rods, the two work together to create a more complex flow path for the material when the mixing blades rotate, thus enhancing the mixing effect.

[0029] 2. The rotating shaft is connected to the distribution box through the second fixed sleeve and the connecting rod. When the rotating shaft rotates, it drives the distribution box to rotate. The first distribution port at the bottom of the box and the second distribution port evenly opened along the circumference can make the additives evenly dispersed in the mixing tank, thus solving the problem of uneven additive distribution.

[0030] 3. By opening a rotating opening at the top of the mixing tank for the feed hopper to rotate circumferentially, the feed hopper can rotate flexibly, facilitating the entry of additives into the distribution box, while not hindering the rotation of the distribution box, thus ensuring the stability of additive distribution. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 This is a utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0033] Figure 3 This is a utility model Figure 2 A magnified structural diagram of part A;

[0034] Figure 4 This is a three-dimensional structural diagram of the dispensing box in this utility model.

[0035] The reference numerals in the figure are as follows: 1. Frame; 2. Conveying cylinder; 3. Conveying screw; 4. Mixing mechanism; 40. Mixing tank; 41. Feed hopper; 42. Discharge hopper; 43. Mixing assembly; 430. Rotating shaft; 431. Mixing blade; 4310. Mixing rod; 4311. Mixing plate; 4312. Mixing opening; 4313. First fixed sleeve; 432. Drive motor; 5. Additive distributor; 50. Dispensing box; 500. Box body; 501. First dispensing port; 502. Second dispensing port; 51. Feed hopper; 52. Connecting piece; 520. Second fixed sleeve; 521. Connecting rod; 6. Rotating opening; 7. Support base. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-4 :

[0037] Example 1:

[0038] This embodiment provides a plastic sheet extrusion device with a mixing function, including a frame 1, a conveying cylinder 2 disposed above the frame 1, and a rotatable conveying screw 3 disposed within the conveying cylinder 2, and further including:

[0039] The mixing mechanism 4 includes a mixing tank 40 located above the conveying cylinder 2, a feed hopper 41 located at the top of the mixing tank 40, a discharge hopper 42 located at the bottom of the mixing tank 40 and connected to the conveying cylinder 2, and a mixing component 43 located inside the mixing tank 40 for uniformly mixing plastic raw materials.

[0040] The additive dispenser 5 includes a dispensing box 50 disposed inside the mixing tank 40, an inlet hopper 51 with one end connected to the dispensing box 50 and the other end extending out of the mixing tank 40, and a connector 52 disposed between the rotating shaft 430 and the dispensing box 50.

[0041] Frame 1 supports the entire extrusion unit and provides a mounting base for other components. Frame 1 is typically a frame structure located at the bottom of the unit.

[0042] The conveyor cylinder 2 is used to transport the mixed plastic raw materials and serves as the channel for the material to move from mixing to extrusion. The conveyor cylinder 2 is generally a hollow cylindrical structure, and its shape is usually cylindrical. It can be fixed to the top of the frame 1 by welding or bolts.

[0043] The conveying screw 3 pushes the plastic raw material forward inside the conveying cylinder 2 as it rotates. A motor for driving the conveying screw 3 to rotate inside the conveying cylinder 2 is generally mounted on the frame 1. The conveying screw 3 can be connected to the output shaft of the motor via a coupling.

[0044] Mixing tank 40 is used to contain plastic raw materials and additives, allowing them to mix thoroughly and ensuring the mixing effect is not affected by external factors. Mixing tank 40 typically consists of a tank body and a lid. The tank body usually has a certain thickness to withstand the weight of the internal materials and the forces generated during stirring. Mixing tank 40 is commonly cylindrical, a shape that facilitates a more regular flow path for the materials during stirring, improving mixing efficiency. The lid is generally bolted to the tank body for easy opening for equipment maintenance and cleaning.

[0045] The feed hopper 41 allows the input plastic raw materials to enter the mixing tank 40 in a concentrated and orderly manner, preventing spillage and improving feeding efficiency. The feed hopper 41 is funnel-shaped, including a large opening and a small opening, with the small opening connected to the feed inlet at the top of the mixing tank 40. The feed hopper 41 and the top of the mixing tank 40 can be connected by welding, bolts, or clamps to ensure a firm connection and good sealing.

[0046] The discharge hopper 42 is used to convey the uniformly mixed material in the mixing tank 40 to the conveying cylinder 2, serving as a transition channel from the mixing stage to the extrusion stage. The discharge hopper 42 also has a funnel-shaped structure, with its larger end connected to the bottom of the mixing tank 40 and its smaller end connected to the conveying cylinder 2. The discharge hopper 42 can be connected to the bottom of the mixing tank 40 and the conveying cylinder 2 by welding, flange connection, or quick-connect couplings to ensure a tight connection and prevent material leakage and blockage.

[0047] The mixing component 43 is used to stir and mix the plastic raw materials in the mixing tank 40 to achieve a uniform mixing state.

[0048] The distribution box 50 ensures that the additives are evenly dispersed in the mixing tank 40, so that the additives are fully mixed with the plastic raw materials and the performance of the plastic sheet is improved.

[0049] The feed hopper 51 provides a channel for additives to enter the dispensing box 50, facilitating additive addition by operators. The feed hopper 51 is funnel-shaped, wider at the top and narrower at the bottom. The larger diameter at the top facilitates additive addition, while the smaller diameter at the bottom connects to the dispensing box 50. The feed hopper 51 and dispensing box 50 are sealed together to prevent additive leakage; this can be achieved through welding, flange connection, or sealing ring connection.

[0050] The connector 52 enables the dispensing box 50 to rotate synchronously with the rotating shaft 430, thereby achieving uniform distribution of the additive.

[0051] Example 2:

[0052] This embodiment provides a plastic sheet extrusion device with a mixing function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0053] The hybrid component 43 includes:

[0054] A rotating shaft 430 is disposed inside the mixing tank 40 along the axial direction of the mixing tank 40;

[0055] The mixing blade 431 is mounted on the rotating shaft 430;

[0056] A drive motor 432 is located at the top of the mixing tank 40. The drive motor 432 is used to drive the rotating shaft 430, thereby causing the mixing blade 431 to rotate inside the mixing tank 40.

[0057] The rotating shaft 430 provides rotational support and power for the mixing blades 431, ensuring that the mixing blades 431 can rotate within the mixing tank 40 in a set direction and speed to achieve the mixing of plastic raw materials. The rotating shaft 430 is typically a solid or hollow metal shaft, generally cylindrical in shape with a smooth surface to reduce resistance during rotation. The rotating shaft 430 is axially positioned within the mixing tank 40, vertically penetrating its upper and lower sections. Its upper end is tightly connected to the output shaft of the drive motor 432 via a coupling, ensuring smooth power transmission; its lower end is connected to the bottom of the mixing tank 40 via a bearing, guaranteeing both rotational flexibility and stable support.

[0058] The mixing blade 431 directly stirs and mixes the plastic raw materials in the mixing tank 40, so that the raw materials of different components can fully contact and blend.

[0059] The drive motor 432 serves as the power source for the entire mixing assembly 43, converting electrical energy into mechanical energy. This energy drives the mixing blades 431 to rotate via the rotating shaft 430, thereby achieving the mixing of the plastic raw materials. The drive motor 432 is located at the top of the mixing tank 40, with its output shaft connected downwards to the rotating shaft 430, facilitating direct power transmission to the rotating shaft 430. The output shaft of the drive motor 432 can be connected to the rotating shaft 430 via a coupling.

[0060] Example 3:

[0061] This embodiment provides a plastic sheet extrusion device with a mixing function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0062] The hybrid blade 431 includes:

[0063] Mixing rods 4310 are evenly distributed on the inner wall of mixing tank 40;

[0064] A mixing plate 4311 is arranged in a circumferential array along the rotation axis 430, and a mixing opening 4312 adapted to the mixing rod 4310 is provided on the mixing plate 4311;

[0065] The first fixing sleeve 4313 is used to fix the mixing plate 4311 on the rotating shaft 430;

[0066] The axis of the mixing rod 4310 is perpendicular to the axis of the rotating shaft 430.

[0067] The mixing rod 4310 assists the mixing plate 4311 in enhancing the mixing effect on the plastic raw materials, making the material flow more complex. When the mixing blade 431 rotates, the mixing rod 4310 can change the flow direction of the materials, increase the collision and friction between materials, and improve the uniformity of mixing. The mixing rod 4310 is generally a solid rod-shaped structure with a relatively smooth surface, and its shape is usually a slender straight rod. The mixing rod 4310 can be evenly arranged on the inner wall of the mixing tank 40 by means of welding, bolt connection, or slotting, and its axis is perpendicular to the axis of the rotating shaft 430.

[0068] During rotation, the mixing plate 4311 agitates and stirs the material over a large area, promoting the mixing of materials with different components. The mixing plate 4311 is generally a flat plate structure, arranged in a circumferential array along the rotation axis 430. It has mixing openings 4312 that match the mixing rod 4310. The shape of the mixing plate 4311 is typically rectangular, circular, or similar. The mixing plate 4311 is fixed to the rotation axis 430 by a first fixing sleeve 4313, ensuring that it rotates synchronously with the rotation axis 430.

[0069] The first fixing sleeve 4313 prevents the mixing plate 4311 from shifting or shaking during rotation, ensuring the normal operation of the mixing blade 431. The first fixing sleeve 4313 is generally a sleeve-shaped structure, with its inner hole matching the outer diameter of the rotating shaft 430, and its outer surface having an interface for mounting the mixing plate 4311. The shape of the first fixing sleeve 4313 is typically cylindrical. The first fixing sleeve 4313 is fixed to the rotating shaft 430 by key connection, interference fit, or bolt connection, and is tightly connected to the mixing plate 4311 by welding, bolt connection, or other methods.

[0070] Example 4:

[0071] This embodiment provides a plastic sheet extrusion device with a mixing function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0072] The connector 52 includes:

[0073] The second fixed sleeve 520 is sleeved on the rotating shaft 430;

[0074] The connecting rod 521 is connected at one end to the second fixed sleeve 520 and at the other end to the distribution box 50.

[0075] The second fixing sleeve 520 provides a stable support point for the connecting rod 521, enabling it to rotate synchronously with the rotating shaft 430, thereby driving the distribution box 50 to rotate. The second fixing sleeve 520 is generally a hollow sleeve-shaped structure, with internal dimensions adapted to the outer diameter of the rotating shaft 430. Its shape is typically cylindrical. The second fixing sleeve 520 can be fixed to the rotating shaft 430 via key connections, interference fits, or set screws, ensuring that no relative slippage occurs during rotation.

[0076] The connecting rod 521 acts as a bridge for power transmission, enabling the distribution box 50 to rotate with the rotating shaft 430, thus achieving uniform distribution of the additive. The connecting rod 521 is generally a solid or hollow rod-shaped structure with connecting structures at both ends, such as threaded holes or welded surfaces. Its shape is typically a straight rod. One end of the connecting rod 521 is fixed to the second fixing sleeve 520 by welding, bolting, or other methods, while the other end is similarly connected to the distribution box 50 in a suitable manner to ensure a secure connection.

[0077] Example 5:

[0078] This embodiment provides a plastic sheet extrusion device with a mixing function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0079] The dispensing box 50 includes:

[0080] The box body 500 is located inside the mixing tank 40 and on one side of the rotating shaft 430;

[0081] The first distribution port 501 is located at the bottom of the box body 500;

[0082] The second distribution port 502 is evenly opened along the circumference of the box body 500.

[0083] The container 500 serves as a container for the additive, ensuring a sufficient and continuous supply of additives during the dispensing process and preventing supply interruptions. The container 500 is typically a closed cavity, often with regular shapes such as cubes or cylinders, facilitating installation and rotation within the mixing tank 40. The container 500 is positioned within the mixing tank 40 via a connector 52, located to one side of the rotating shaft 430. This positioning allows for better dispersion of the additives into the materials within the mixing tank 40.

[0084] The first dispensing port 501 achieves initial vertical dispersion of the additive, allowing it to come into contact with and mix with the plastic raw material at the bottom. The first dispensing port 501 is an opening formed at the bottom of the box body 500, typically circular or square in shape. A circular opening facilitates even drop of the additive, while a square opening is easier to process. The first dispensing port 501 is directly processed at the bottom of the box body 500 and is an integral part of it.

[0085] The second dispensing port 502 ensures that the additive is fully dispersed in the horizontal direction, allowing for wider contact and mixing with the plastic raw material. The second dispensing port 502 consists of a series of openings evenly distributed along the circumference of the box body 500. The openings are generally circular or strip-shaped; circular openings allow the additive to be dispersed in a jet-like manner, while strip-shaped openings allow for a band-like dispersion. The second dispensing port 502 is directly machined onto the circumference of the box body 500, making it an integral part of the box body 500.

[0086] Example 6:

[0087] This embodiment provides a plastic sheet extrusion device with a mixing function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0088] The mixing tank 40 has a rotating opening 6 at the top for the feed hopper 51 to rotate circumferentially.

[0089] The rotating opening 6 provides rotational space for the feed hopper 51, allowing it to rotate circumferentially at the top of the mixing tank 40. Simultaneously, it ensures the feed hopper 51 rotates flexibly, allowing additives to be added from different angles when entering the distribution box 50, resulting in a more uniform distribution of additives within the distribution box 50 and thus improving the distribution effect in the mixing tank 40. The rotating opening 6 is a circular or near-circular notch formed at the top of the mixing tank 40. Its shape is typically circular and matches the shape of the connection between the feed hopper 51 and the top of the mixing tank 40, ensuring smooth rotation of the feed hopper 51. The rotating opening 6 and the mixing tank 40 are integrally formed.

[0090] Example 7:

[0091] This embodiment provides a plastic sheet extrusion device with a mixing function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0092] The feed hopper 41, discharge hopper 42, and agent feed hopper 51 are all funnel-shaped structures that are larger at the top and smaller at the bottom.

[0093] The large opening on the feed hopper 41 provides a larger feeding area, allowing materials to enter the equipment quickly and smoothly. It can hold a large amount of material, allowing the material to naturally converge towards the smaller outlet below under the action of gravity, guiding the material to flow into the subsequent processing area in a specific direction, and preventing the material from scattering or accumulating around the feed inlet.

[0094] The larger part of the discharge hopper 42 can collect the material that needs to be discharged after the equipment is processed, ensuring that all the material can enter the discharge hopper 42. The smaller outlet at the bottom guides the material to a specific discharge path, making the discharge process more orderly and facilitating the delivery of the material to the designated collection container or the next processing stage.

[0095] The large opening at the top of the feed hopper 51 facilitates the operator in pouring the additive into it, and can hold a certain amount of additive, making it convenient to add a larger quantity of reagent at once. The smaller outlet at the bottom allows the additive to flow more concentratedly into the mixing area, achieving more precise addition and helping to control the amount of additive added, ensuring that the additive is mixed with other materials in a precise ratio.

[0096] Example 8:

[0097] This embodiment provides a plastic sheet extrusion device with a mixing function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0098] The top of the frame 1 is provided with a support base 7 for supporting the mixing tank 40.

[0099] The support base 7 ensures the mixing tank 40 is securely installed, reduces vibration and displacement of the mixing tank 40 during operation, and guarantees the stability of the mixing process. The support base 7 is typically a frame structure and can be installed between the mixing tank 40 and the frame 1 by welding or bolting.

[0100] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A plastic plate extrusion device with mixing function, comprising a frame (1), a conveying cylinder (2) arranged above the frame (1), and a conveying screw (3) rotatably arranged in the conveying cylinder (2), characterized in that Also include: The mixing mechanism (4) includes a mixing tank (40) arranged above the conveying cylinder (2), a feeding hopper (41) arranged at the top of the mixing tank (40), a discharging hopper (42) arranged at the bottom of the mixing tank (40) and connected with the conveying cylinder (2), and a mixing assembly (43) arranged in the mixing tank (40) and used for uniformly mixing the plastic raw materials; The additive distributor (5) includes a distribution box (50) arranged in the mixing tank (40), an additive feeding hopper (51) having one end communicated with the distribution box (50) and the other end extending out of the mixing tank (40), and a connecting piece (52) arranged between the rotating shaft (430) and the distribution box (50).

2. The plastic plate extrusion device with mixed functions according to claim 1, characterized in that, The mixing assembly (43) comprises: A rotating shaft (430) arranged in the mixing tank (40) along the axial direction of the mixing tank (40); A mixing paddle (431) arranged on the rotating shaft (430); A drive motor (432) arranged at the top of the mixing tank (40), wherein the drive motor (432) is used to drive the rotating shaft (430) to rotate the mixing paddle (431) in the mixing tank (40).

3. The plastic plate extrusion device with mixed functions according to claim 2, characterized in that, The mixing paddle (431) comprises: A mixing rod (4310) uniformly arranged on the inner wall of the mixing tank (40); A mixing plate (4311) arranged in an array along the circumferential direction of the rotating shaft (430), wherein the mixing plate (4311) is provided with mixing openings (4312) matched with the mixing rods (4310); A first fixing sleeve (4313) used to fix the mixing plate (4311) on the rotating shaft (430); Wherein, the axis of the mixing rod (4310) is perpendicular to the axis of the rotating shaft (430).

4. The plastic plate extrusion device with mixed functions according to claim 2, characterized in that, The connecting piece (52) comprises: A second fixing sleeve (520) sleeved on the rotating shaft (430); A connecting rod (521) having one end connected with the second fixing sleeve (520) and the other end connected with the distribution box (50).

5. The plastic plate extrusion device with mixed functions according to claim 2, characterized in that, The distribution box (50) comprises: A box body (500) arranged in the mixing tank (40) and located at one side of the rotating shaft (430); A first distribution port (501) arranged at the bottom of the box body (500); A second distribution port (502) uniformly arranged along the circumferential surface of the box body (500).

6. The plastic plate extrusion device with mixed functions according to claim 1, characterized in that, The top of the mixing tank (40) is provided with a rotating opening (6) for the additive feeding hopper (51) to rotate circumferentially.

7. The plastic plate extrusion device with mixed functions according to claim 1, characterized in that, The feeding hopper (41), the discharging hopper (42) and the additive feeding hopper (51) are all funnel-shaped structures with large top and small bottom.

8. The plastic plate extrusion device with mixed functions according to claim 1, characterized in that, The top of the rack (1) is provided with a support seat (7) used to support the mixing tank (40).

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