A rotational molding machine for storage tank production

Abstract

This utility model discloses a rotational molding machine for storage tank production, including a support base. A rotational molding mold is provided above the support base. A first support and a second support are fixedly installed on the upper surface of the support base. A geared motor is fixedly installed on one side of the first support, and a drive roller is fixedly installed at the output end of the geared motor. This utility model, through the cooperation of the geared motor, drive roller, and auxiliary rotating roller, can stably drive the rotational molding mold to rotate. In addition, the uniform heating of the electric heating cover ensures that the plastic powder is fully melted and molded. The contraction movement of the electro-hydraulic push rod can quickly push the mold end cap to fit the rotational molding mold. Compared with traditional manual or simple mechanical methods, this shortens the closing time and avoids the problem of incomplete closure caused by manual operation. Furthermore, when the mold end cap is opened, the extension movement of the electro-hydraulic push rod can drive the mold end cap to reset, quickly opening the mold and improving the efficiency of material unloading and finished product removal.

Description

Technical Field

[0001] This utility model relates to the field of rotational molding machines, and in particular to a rotational molding machine for the production of storage tanks. Background Technology

[0002] A rotational molding machine is a device that produces plastic products through rotational molding. Its working principle is based on heating and rotation. During production, plastic powder is added to the mold, and the mold rotates under the drive of the rotational molding machine. At the same time, the mold is heated, which allows the plastic powder to melt evenly and adhere to the inner wall of the mold. After cooling and solidification, the desired plastic product is formed.

[0003] In the field of storage tank production, rotational molding machines are key equipment. However, when using existing rotational molding machines to produce storage tanks, due to the large size and heavy weight of the tanks, the opening and closing of the mold end caps during the rotational molding process usually adopts traditional manual or simple mechanical assistance methods, which consumes a lot of manpower and time. In addition, the opening and closing speed of the end caps is slow, which reduces the efficiency of rotational molding material feeding and finished product removal. To address these issues, we propose a rotational molding machine for storage tank production. Utility Model Content

[0004] The purpose of this invention is to provide a rotational molding machine for storage tank production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A rotational molding machine for storage tank production includes a support base, a rotational molding mold above the support base, a first support and a second support fixedly mounted on the upper surface of the support base, a geared motor fixedly mounted on one side of the first support, a drive roller fixedly mounted on the output end of the geared motor, an auxiliary roller rotatably connected to the inner ring of the second support, two support plates fixedly connected to the upper surface of the support base, an electric heating cover fixedly connected to the side of the two support plates that are close to each other, an electro-hydraulic push rod fixedly mounted on one side of each of the two support plates, a connecting plate fixedly mounted on the telescopic end of each of the two electro-hydraulic push rods, a mold end cap fixedly connected to one side of the two connecting plates, and one side of the mold end cap contacting one end of the rotational molding mold.

[0007] In a further embodiment, the upper surface of the support base is provided with a sliding hole, and a sliding support plate is slidably connected to the inner wall of the sliding hole. One side of the sliding support plate is fixedly connected to one side of the mold end cap.

[0008] In a further embodiment, two arc-shaped supports are fixedly connected to the upper surface of the support base. The upper surfaces of the two arc-shaped supports are in contact with the outer surfaces of the drive roller and the auxiliary roller, respectively. Limiting disks are fixedly connected to the outer surfaces of the drive roller and the auxiliary roller, and one side of each of the two limiting disks is in contact with one end of the rotational molding die.

[0009] In a further embodiment, the outer surfaces of the drive roller and the auxiliary roller are both in contact with the outer surface of the rotational molding die, and the electric heating cover is located above the rotational molding die.

[0010] In a further embodiment, a support vertical plate is fixedly connected to the upper surface of the support base, and a PLC controller is fixedly installed on one side of the support vertical plate.

[0011] In a further embodiment, a support slide is fixedly connected to the bottom surface of the support base, and a sliding plate is slidably connected to the inner wall of the support slide. One side of the sliding plate is fixedly connected to one side of the sliding support plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a geared motor in conjunction with a drive roller and an auxiliary rotating roller to stably rotate the rotational molding die. Furthermore, the uniform heating from the electric heating cover ensures the plastic powder is fully melted and molded. The contraction of the electro-hydraulic actuator quickly pushes the mold end cap to fit the rotational molding die. Compared to traditional manual or simple mechanical methods, this shortens the closing time and avoids the problem of incomplete closure caused by manual operation. Additionally, when the mold end cap is opened, the extension of the electro-hydraulic actuator resets the mold end cap, quickly opening the die and improving the efficiency of material unloading and finished product removal. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a rotational molding machine used for storage tank production, viewed from the front.

[0015] Figure 2 A cross-sectional view of a rotational molding machine used for tank production;

[0016] Figure 3 A sectional view from the side of a rotational molding machine used for tank production;

[0017] Figure 4 A top-view schematic diagram of a partial three-dimensional structure of a rotational molding machine used in the production of storage tanks.

[0018] In the diagram: 1. Support base; 2. Second support; 3. Auxiliary roller; 4. First support; 5. Gear motor; 6. Drive roller; 7. Rotational molding mold; 8. Electric heating cover; 9. Support plate; 10. Electro-hydraulic actuator; 11. Connecting plate; 12. Mold end cover; 13. Support plate; 14. PLC controller; 15. Arc-shaped support; 16. Limiting plate; 17. Support slide; 18. Sliding plate; 19. Sliding hole; 20. Sliding support plate. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4In this utility model, a rotational molding machine for storage tank production includes a support base 1. A rotational molding mold 7 is provided above the support base 1. A first support 4 and a second support 2 are fixedly installed on the upper surface of the support base 1. Bearings are fixedly embedded inside the first support 4 and the second support 2 to support the drive roller 6 and the auxiliary roller 3. A reduction motor 5 is fixedly installed on one side of the first support 4. The output end of the reduction motor 5 is fixedly installed with the drive roller 6. The inner ring of the second support 2 is rotatably connected to the auxiliary roller 3. Two support plates 9 are fixedly connected to the upper surface of the support base 1. An electric heating cover 8 is fixedly connected to the side of the two support plates 9 that are close to each other. An electric heating cover 8 is fixedly installed on one side of each of the two support plates 9. The mold is equipped with electro-hydraulic actuators 10, and connecting plates 11 are fixedly installed on the telescopic ends of the two electro-hydraulic actuators 10. A mold end cap 12 is fixedly connected to one side of the two connecting plates 11. One side of the mold end cap 12 contacts one end of the rotational molding mold 7. The first support 4 and the second support 2 are used to fix the reduction motor 5 and the auxiliary roller 3, respectively. The reduction motor 5 drives the drive roller 6 to rotate and cooperates with the auxiliary roller 3 to drive the rotational molding mold 7 to rotate, thus realizing the motion requirements of the rotational molding process. The electric heating cover 8 can be fixed by the support plate 9, which will heat the rotational molding mold 7. The electro-hydraulic actuators 10, connecting plates 11 and mold end cap 12 form an opening and closing mechanism to realize the sealing and opening of the mold.

[0023] In a further embodiment, a sliding hole 19 is provided on the upper surface of the support base 1. A sliding support plate 20 is slidably connected to the inner wall of the sliding hole 19. One side of the sliding support plate 20 is fixedly connected to one side of the mold end cover 12. A support slide 17 is fixedly connected to the bottom surface of the support base 1. A sliding plate 18 is slidably connected to the inner wall of the support slide 17. One side of the sliding plate 18 is fixedly connected to one side of the sliding support plate 20. The sliding hole 19, the sliding support plate 20, the support slide 17, and the sliding plate 18 together form a sliding guide structure. The sliding hole 19 and the support slide 17 can provide sliding tracks for the sliding support plate 20 and the sliding plate 18, which will make the mold end cover 12 move smoothly in a fixed direction during the opening and closing process, thereby enhancing the stability of the movement.

[0024] In a further embodiment, two arc-shaped supports 15 are fixedly connected to the upper surface of the support base 1. The upper surfaces of the two arc-shaped supports 15 are in contact with the outer surfaces of the drive roller 6 and the auxiliary roller 3, respectively. Limiting disks 16 are fixedly connected to the outer surfaces of the drive roller 6 and the auxiliary roller 3. One side of each of the two limiting disks 16 is in contact with one end of the rotational molding die 7. The arc-shaped supports 15 are used to support the drive roller 6 and the auxiliary roller 3, which will share the pressure during their operation. The contact between the limiting disks 16 and the end of the rotational molding die 7 can limit the axial movement of the rotational molding die 7, ensuring that the position of the rotational molding die 7 is stable during rotation and avoiding displacement that affects the rotational molding quality.

[0025] In a further embodiment, the outer surfaces of the drive roller 6 and the auxiliary roller 3 are in contact with the outer surface of the rotational molding die 7. The electric heating cover 8 is located above the rotational molding die 7. A support vertical plate 13 is fixedly connected to the upper surface of the support base 1. A PLC controller 14 is fixedly installed on one side of the support vertical plate 13. Through the contact between the drive roller 6 and the auxiliary roller 3 and the surface of the rotational molding die 7, power transmission can be ensured. The electric heating cover 8 is located above the rotational molding die 7, which can achieve uniform heating. The PLC controller 14 installed on the support vertical plate 13 is used to control the operation of the equipment components.

[0026] The working principle of this utility model is as follows: First, when the mold is closed, the electro-hydraulic push rod 10 is activated to retract, which can push the mold end cover 12 to move, so that the mold end cover 12 can quickly and stably fit into the rotational molding mold 7 to complete the closure. Then, the reduction motor 5 drives the drive roller 6 to rotate, and in cooperation with the auxiliary rotating roller 3, it can drive the rotational molding mold 7 to rotate, which can realize the rotational action of rotational molding. At the same time, the electric heating cover 8 heats the rotational molding mold 7, which can melt and form the internal plastic powder. When the mold end cover 12 is opened, the electro-hydraulic push rod 10 extends, which can drive the mold end cover 12 to reset, which will quickly open the rotational molding mold 7, making it easy to unload materials and take out the finished product.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotational molding machine for producing a storage tank, characterized by: The system includes a support base (1), a rotational molding mold (7) is provided above the support base (1), a first support (4) and a second support (2) are fixedly installed on the upper surface of the support base (1), a geared motor (5) is fixedly installed on one side of the first support (4), a drive roller (6) is fixedly installed at the output end of the geared motor (5), an auxiliary roller (3) is rotatably connected to the inner ring of the second support (2), two support plates (9) are fixedly connected to the upper surface of the support base (1), an electric heating cover (8) is fixedly connected to one side of the two support plates (9), an electro-hydraulic push rod (10) is fixedly installed on one side of each of the two support plates (9), a connecting plate (11) is fixedly installed at the telescopic end of each of the two electro-hydraulic push rods (10), a mold end cap (12) is fixedly connected to one side of each of the two connecting plates (11), and one side of the mold end cap (12) is in contact with one end of the rotational molding mold (7).

2. A rotational moulding machine for the production of tanks according to claim 1, characterized in that: The upper surface of the support base (1) is provided with a sliding hole (19), and a sliding support plate (20) is slidably connected to the inner wall of the sliding hole (19). One side of the sliding support plate (20) is fixedly connected to one side of the mold end cap (12).

3. A rotational moulding machine for the production of tanks according to claim 1, characterized in that: The upper surface of the support base (1) is fixedly connected to two arc-shaped supports (15). The upper surfaces of the two arc-shaped supports (15) are in contact with the outer surfaces of the drive roller (6) and the auxiliary roller (3), respectively. The outer surfaces of the drive roller (6) and the auxiliary roller (3) are fixedly connected to limit plates (16). One side of each of the two limit plates (16) is in contact with one end of the rotational molding die (7).

4. A rotational moulding machine for the production of tanks according to claim 1, characterized in that: The outer surfaces of the drive roller (6) and the auxiliary roller (3) are in contact with the outer surface of the rotational molding die (7), and the electric heating cover (8) is located above the rotational molding die (7).

5. A rotational moulding machine for the production of tanks according to claim 1, characterized in that: The upper surface of the support base (1) is fixedly connected to a support vertical plate (13), and a PLC controller (14) is fixedly installed on one side of the support vertical plate (13).

6. The rotational molding machine for storage tank production according to claim 1, characterized in that: The bottom surface of the support base (1) is fixedly connected to a support slide (17), and the inner wall of the support slide (17) is slidably connected to a sliding plate (18). One side of the sliding plate (18) is fixedly connected to one side of the sliding support plate (20).

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