A raw material mixer for PVC sheet production

Abstract

This utility model discloses a raw material mixer for PVC sheet production, relating to the field of PVC sheet manufacturing technology. It includes a base, with two support plates fixedly connected to the upper surface of the base. Arc-shaped grooves are formed on the upper surfaces of the two support plates, and a mixing cylinder is rotatably connected inside the two arc-shaped grooves. A driving mechanism is arranged between the two support plates, allowing the mixing cylinder to rotate. Two mixing plates are symmetrically fixedly connected to the inner wall of the mixing cylinder. A stirring mechanism is arranged inside the mixing cylinder, and a transmission mechanism is provided between the stirring mechanism and the driving mechanism. The mixing cylinder of this utility model achieves 360° rotation through an external gear ring and gear transmission. As the mixing plates on the inner wall rotate with the cylinder, they flip the bottom powder additives upwards, forming a "revolution + rotation" composite mixing mode with the stirring rod of the stirring mechanism. Compared with traditional single stirring methods, this improves the uniformity of powder dispersion.

Description

Technical Field

[0001] This utility model relates to the field of PVC sheet manufacturing technology, specifically to a raw material mixer for PVC sheet production. Background Technology

[0002] In the production of PVC sheets, the uniformity of raw material mixing is a key factor in determining product performance. The production of PVC sheets requires mixing polyvinyl chloride resin with various raw materials such as lead salt stabilizers, calcium-zinc composite stabilizers, and plasticizers.

[0003] Among them, a raw material mixer for PVC sheet production with announcement number CN221232889U includes an outer ring frame, several support frames are provided at the bottom of the outer ring frame, a mixing tank is connected to the outer ring frame by a rotary transmission component, the mixing component is set outside the outer ring frame, the mixing component includes a pair of telescopic cylinders, the telescopic cylinders are fixed at opposite ends on the upper surface of the outer ring frame, the output end of the telescopic cylinders is connected to a horizontal plate, and a fixed mixing frame is fixedly connected to the bottom surface of the horizontal plate.

[0004] However, existing PVC sheet production raw material mixers typically add powdered additives such as lead salt stabilizers and calcium-zinc composite stabilizers during mixing to enhance the performance of PVC sheets. These powdered additives tend to settle at the bottom of the mixing device due to gravity during stirring, resulting in uneven mixing of raw materials. Utility Model Content

[0005] In view of the problems existing in the raw material mixers used in the production of PVC sheets, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a raw material mixer for PVC board production, which solves the problem that existing raw material mixers for PVC board production usually add some powdered additives such as lead salt stabilizers and calcium-zinc composite stabilizers to increase the performance of PVC boards during mixing. However, these powdered additives will be deposited at the bottom of the mixing device due to gravity during stirring, resulting in uneven mixing of raw materials.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A raw material mixer for PVC sheet production includes a base, two support plates fixedly connected to the upper surface of the base, arc-shaped grooves formed on the upper surfaces of the two support plates, and a mixing cylinder rotatably connected inside the two arc-shaped grooves. A drive mechanism is provided between the two support plates, and the mixing cylinder rotates through the drive mechanism. Two mixing plates are symmetrically fixedly connected to the inner wall of the mixing cylinder. A stirring mechanism is provided inside the mixing cylinder, and a transmission mechanism is provided between the stirring mechanism and the drive mechanism. The drive mechanism drives the stirring mechanism to work through the transmission mechanism.

[0008] Preferably, the driving mechanism includes a first rotating rod, a motor, an external gear ring, and a gear. The first rotating rod is rotatably connected between two support plates. The motor is fixedly connected to one side of the support plate. One end of the first rotating rod passes through one end of the support plate and is fixedly connected to the output end of the motor. The gear is fixedly sleeved on the rod wall of the first rotating rod. The external gear ring is fixedly sleeved on the outer surface of the mixing cylinder. The gear meshes with the external gear ring.

[0009] Preferably, the stirring mechanism includes a second rotating rod and a plurality of stirring rods, one end of the second rotating rod being rotatably connected to the inside of the mixing cylinder, and each stirring rod being symmetrically and fixedly connected to the rod wall of the second rotating rod.

[0010] Preferably, the transmission mechanism includes two sprockets and a chain. The two sprockets are respectively fixedly sleeved on the rod wall at one end of the first rotating rod and the second rotating rod, and the chain is sleeved on the outer surface of the two sprockets.

[0011] Preferably, an annular plate is fixedly sleeved on the outer surface of the mixing cylinder, and an arc-shaped groove is formed on the upper surface of the support plate, with the annular plate disposed inside the annular groove.

[0012] Preferably, one side of each of the two mixing plates is provided with a strip groove, and each strip groove is matched with a corresponding stirring rod.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. In this utility model, the mixing cylinder achieves 360° rotation through the external gear ring and gear transmission. When the mixing plate on the inner wall rotates with the cylinder, it flips the powder additive at the bottom upwards. Together with the stirring rod of the stirring mechanism, it forms a composite mixing mode of "revolution + rotation". Compared with the traditional single stirring method, the powder dispersion uniformity is improved.

[0014] 2. In this utility model, the synchronous sliding of the annular plate within the annular groove limits and guides the rotation of the mixing cylinder, preventing axial displacement or swaying during rotation and ensuring the stability of the mixing cylinder's rotation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present utility model Figure 1A sectional view; Figure 3 For the present utility model Figure 2 A 3D view of the mixing plate.

[0017] Explanation of reference numerals in the attached figures: 1. Base, 2. Support plate, 3. Mixing cylinder, 4. Mixing plate, 5. First rotating rod, 6. Motor, 7. External gear ring, 8. Gear, 9. Second rotating rod, 10. Stirring rod, 11. Sprocket, 12. Chain, 13. Ring plate. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] This utility model discloses a raw material mixer for PVC sheet production.

[0020] This utility model provides, for example Figure 1-3 The PVC sheet production raw material mixer shown includes a base 1, with two support plates 2 fixedly connected to the upper surface of the base 1. The upper surfaces of the two support plates 2 are provided with arc-shaped grooves, and a mixing cylinder 3 is rotatably connected inside the two arc-shaped grooves. A drive mechanism is provided between the two support plates 2, and the mixing cylinder 3 rotates through the drive mechanism. Two mixing plates 4 are symmetrically fixedly connected to the inner wall of the mixing cylinder 3. A stirring mechanism is provided inside the mixing cylinder 3, and a transmission mechanism is provided between the stirring mechanism and the drive mechanism. The drive mechanism drives the stirring mechanism to work through the transmission mechanism.

[0021] The rotation of the mixing cylinder 3 will cause the raw materials inside to move accordingly. At the same time, the mixing plate 4 on the inner wall will lift and turn the raw materials, turning the powdered additives deposited at the bottom upwards to prevent them from settling due to gravity.

[0022] In order for mixing cylinder 3 to rotate, such as Figure 1-2 As shown, the drive mechanism includes a first rotating rod 5, a motor 6, an external gear ring 7, and a gear 8. The first rotating rod 5 is rotatably connected between two support plates 2. The motor 6 is fixedly connected to one side of the support plate 2. One end of the first rotating rod 5 passes through one end of the support plate 2 and is fixedly connected to the output end of the motor 6. The gear 8 is fixedly sleeved on the rod wall of the first rotating rod 5. The external gear ring 7 is fixedly sleeved on the outer surface of the mixing cylinder 3, and the gear 8 meshes with the external gear ring 7.

[0023] During operation, the motor 6 starts, and its output end drives the first rotating rod 5 to rotate between the two support plates 2. The gear 8, which is fixedly sleeved on the wall of the first rotating rod 5, rotates together. Since the gear 8 meshes with the outer gear ring 7, which is fixedly sleeved on the outer surface of the mixing cylinder 3, the rotation of the gear 8 will drive the outer gear ring 7 to rotate, thereby driving the mixing cylinder 3 to rotate in the arc groove of the support plate 2, realizing the overall rotation of the mixing cylinder 3.

[0024] In order to stir the raw materials inside the mixing tank, such as Figure 1-2 As shown, the stirring mechanism includes a second rotating rod 9 and multiple stirring rods 10. One end of the second rotating rod 9 is rotatably connected to the inside of the mixing cylinder 3. Each stirring rod 10 is symmetrically and fixedly connected to the rod wall of the second rotating rod 9. The transmission mechanism includes two sprockets 11 and a chain 12. The two sprockets 11 are respectively fixedly sleeved on the rod wall at one end of the first rotating rod 5 and the second rotating rod 9. The chain 12 is sleeved on the outer surface of the two sprockets 11.

[0025] When the first rotating rod 5 rotates, the sprocket 11 on it drives the sprocket 11 on the second rotating rod 9 to rotate through the chain 12, so that the second rotating rod 9 rotates inside the mixing cylinder 3, thereby driving the multiple stirring rods 10 fixed on its rod wall to rotate synchronously, and stirring the raw materials in the mixing cylinder 3.

[0026] To support the mixing cylinder 3, such as Figure 1-2 As shown, an annular plate 13 is fixedly sleeved on the outer surface of the mixing cylinder 3, and an arc groove is opened on the upper surface of the support plate 2, with the annular plate 13 disposed inside the annular groove.

[0027] An annular plate 13, which is fixedly sleeved on the outer surface of the mixing cylinder 3, is set in the annular groove on the upper surface of the support plate 2. When the mixing cylinder 3 rotates, the annular plate 13 slides synchronously in the annular groove, which limits and guides the rotation of the mixing cylinder 3, prevents the mixing cylinder 3 from axially shifting or shaking during rotation, and ensures the stability of the rotation of the mixing cylinder 3.

[0028] To prevent the stirring rod 10 from colliding with the mixing plate 4, such as Figure 1-2 As shown, one side of each of the two mixing plates 4 has a strip groove, and each strip groove is matched with a corresponding stirring rod 10.

[0029] The strip groove on one side of the mixing plate 4 matches the corresponding stirring rod 10, which can prevent the stirring rod 10 from colliding with the mixing plate 4 and ensure the smooth working of the two.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A raw material mixing machine for PVC sheet production, comprising a base (1), characterized in that, Two support plates (2) are fixedly connected to the upper surface of the base (1). The upper surfaces of the two support plates (2) are provided with arc-shaped grooves. A mixing cylinder (3) is rotatably connected inside the two arc-shaped grooves. A driving mechanism is provided between the two support plates (2). The mixing cylinder (3) rotates through the driving mechanism. Two mixing plates (4) are symmetrically fixedly connected to the inner wall of the mixing cylinder (3). A stirring mechanism is provided inside the mixing cylinder (3). A transmission mechanism is provided between the stirring mechanism and the driving mechanism. The driving mechanism drives the stirring mechanism to work through the transmission mechanism.

2. The raw material mixing machine for PVC sheet production according to claim 1, characterized in that, The driving mechanism includes a first rotating rod (5), a motor (6), an external gear ring (7), and a gear (8). The first rotating rod (5) is rotatably connected between two support plates (2). The motor (6) is fixedly connected to one side of the support plate (2). One end of the first rotating rod (5) passes through one end of the support plate (2) and is fixedly connected to the output end of the motor (6). The gear (8) is fixedly sleeved on the rod wall of the first rotating rod (5). The external gear ring (7) is fixedly sleeved on the outer surface of the mixing cylinder (3). The gear (8) meshes with the external gear ring (7).

3. The raw material mixing machine for PVC sheet production according to claim 1, characterized in that, The stirring mechanism includes a second rotating rod (9) and a plurality of stirring rods (10). One end of the second rotating rod (9) is rotatably connected to the inside of the mixing cylinder (3), and each stirring rod (10) is symmetrically and fixedly connected to the rod wall of the second rotating rod (9).

4. The raw material mixing machine for PVC sheet production according to claim 1, characterized in that, The transmission mechanism includes two sprockets (11) and a chain (12). The two sprockets (11) are respectively fixedly sleeved on the rod wall at one end of the first rotating rod (5) and the second rotating rod (9), and the chain (12) is sleeved on the outer surface of the two sprockets (11).

5. The raw material mixing machine for PVC sheet production according to claim 1, characterized in that, An annular plate (13) is fixedly sleeved on the outer surface of the mixing cylinder (3), and an arc groove is opened on the upper surface of the support plate (2), with the annular plate (13) located inside the annular groove.

6. The raw material mixing machine for PVC sheet production according to claim 1, characterized in that, One side of each of the two mixing plates (4) is provided with a strip groove, and each strip groove is matched with a corresponding stirring rod (10).

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