Efficient rotational molding device integrating rotational molding and annealing

Abstract

The invention relates to the technical field of rotational molding, in particular to an efficient rotational molding device integrating rotational molding and annealing, comprising: an integrated oven mounted on a ground guide rail, slidably connected with the ground guide rail, and used for placing a mold; the sealing flange is mounted on one side of the integrated drying oven, and the burner and the integrated drying oven are connected through the sealing flange; the rotating mechanism is mounted on one side of the mold, and a limiting frame is further mounted on the rotating mechanism; the rotating arm is mounted on the limiting frame, is fixedly connected with the limiting frame and is used for supporting and rotating the mold; the novel rotational molding and annealing integrated equipment is designed and manufactured, the equipment integrates the rotational molding function and the annealing function, and the rotational molding process and the annealing process can be completed on the same equipment, so that the production efficiency is greatly improved, and the equipment investment and the maintenance cost are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rotational molding, in particular to a high-efficiency rotational molding device integrating rotational molding and annealing. Background Art

[0002] Roto-molding is a thermoplastic processing method. The basic process is to put powdered or pasty plastic raw materials into a mold, melt the plastic in the mold and evenly distribute it by heating and rolling, and then cool it to shape. This method can produce plastic products of various complex shapes and is widely used in various industries, such as automobiles, home appliances, toys, etc. Plastic annealing is a heat treatment process that improves the crystallization state of the plastic by heating to a certain temperature, keeping it warm for a period of time, and then slowly cooling it, thereby improving the plastic's dimensional stability, gas barrier, tensile modulus and other performance.

[0003] In the existing rotational molding technology, rotational molding and annealing are usually two independent processes that need to be carried out on different equipment. After rotational molding, if the size has not shrunk to the right level or the gas barrier and tensile modulus do not meet the requirements, annealing is usually required. However, this traditional method is not only time-consuming and labor-intensive, but also takes up a lot of space.

[0004] But in general, in traditional rotational molding equipment, although rotational molding and annealing are two important plastic processing technologies, in actual operation, they are usually carried out independently, which not only increases production costs but also reduces production efficiency. In addition, since rotational molding and annealing need to be carried out on different equipment, this also increases equipment investment and maintenance costs. More importantly, this traditional method may lead to unstable product quality, because transferring products between different equipment may introduce additional errors and uncertainties, increasing costs.

[0005] In summary, it is necessary to propose an efficient rotational molding device integrating rotational molding and annealing to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a high-efficiency rotational molding device integrating rotational molding and annealing, so as to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An efficient rotational molding device integrating rotational molding and annealing, comprising:

[0009] An integrated oven, which is installed on a ground rail, wherein the integrated oven and the ground rail are slidably connected, and the integrated oven is used to place the mold;

[0010] A sealing flange, which is installed on one side of the integrated oven, and the burner and the integrated oven are connected via the sealing flange;

[0011] A rotating mechanism, which is installed on one side of the mold, and a limit frame is also installed on the rotating mechanism;

[0012] A rotating arm, which is mounted on the limiting frame and fixedly connected to the limiting frame and is used to support and rotate the mold;

[0013] A cooling mechanism, which is arranged on one side of the rotating mechanism, and a cooling pipe is installed on the cooling mechanism, and a plurality of shunt pipes are evenly connected to the output end of the cooling pipe, so as to cool down the mold after the rotational molding and annealing process;

[0014] A rotational molding mechanism, the rotational molding mechanism is arranged on one side inside the integrated oven;

[0015] The annealing mechanism is arranged on the other side of the integrated oven, and is arranged vertically or horizontally with the rotational molding mechanism. The rotational molding mechanism and the annealing mechanism are connected by a diverter valve for controlling the heat flow distribution from the burner.

[0016] As a preferred technical solution of the present invention, the rotating arm is an L-arm or a straight arm.

[0017] As a preferred technical solution of the present invention, the fuel of the burner can be one of gasoline, diesel or natural gas, and heat is introduced into the integrated oven through airflow, and the gas flow rate is set to 2-200L / min.

[0018] As a preferred technical solution of the present invention, the cooling mechanism cools the mold by using one or both of a fan and water mist.

[0019] As a preferred technical solution of the present invention, the mold is made of aluminum or steel.

[0020] As a preferred technical solution of the present invention, the temperature range of the rotational molding mechanism is 100-300°C, and the temperature range of the annealing mechanism is 40-150°C.

[0021] As a preferred technical solution of the present invention, a rock wool, glass fiber and aerogel filling layer are further arranged in the outer wall interlayer of the integrated oven, which is used to insulate and keep most integrated ovens warm.

[0022] As a preferred technical solution of the present invention, a sealing medium is provided at the connection between the integrated oven and the sealing flange.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Improve production efficiency: This technical solution integrates the two processes of rotational molding and annealing into one device, avoiding the problem of transferring products between different equipment in the traditional method, thereby greatly improving production efficiency and saving time and labor costs;

[0025] 2. Save space and energy: Since the two processes of rotational molding and annealing are integrated into one device, it can greatly save production space, reduce equipment investment and maintenance costs, and improve energy efficiency;

[0026] 3. Improve product quality: Since the two processes of rotational molding and annealing are carried out on the same device, the additional errors and uncertainties that may be introduced by transferring products between different equipment in the traditional method are avoided, thereby improving the quality stability of the product;

[0027] 4. Optimize the production process: This technical solution integrates the two processes of rotational molding and annealing into one device, making the production process more compact, facilitating the realization of automated production, and improving the flexibility and adaptability of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of a high-efficiency rotational molding device integrating rotational molding and annealing of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the integrated oven of the present invention;

[0030] Figure 3 It is a schematic diagram of the mold position of the present invention;

[0031] Figure 4 This is a schematic diagram of the installation position of the sealing medium of the present invention;

[0032] In the figure:

[0033] 1. Integrated oven; 2. Sealing flange; 3. Burner; 4. Mold; 5. Rotating arm; 6. Rotating mechanism; 7. Limiting frame; 8. Cooling mechanism; 9. Diverter pipe; 10. Cooling pipe; 11. Roto-molding mechanism; 12. Diverter valve; 13. Annealing mechanism; 14. Ground guide rail; 15. Sealing medium. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 The present invention proposes an efficient rotational molding device integrating rotational molding and annealing, comprising:

[0036] The integrated oven 1 is installed on a ground guide rail 14, the integrated oven 1 and the ground guide rail 14 are slidably connected, the integrated oven 1 is used to place a mold 4, a sealing flange 2 is installed on one side of the integrated oven 1, the burner 3 and the integrated oven 1 are connected through the sealing flange 2, a rotating mechanism 6 is installed on one side of the mold 4, a limiting frame 7 is also installed on the rotating mechanism 6, a rotating arm 5 is installed on the limiting frame 7 and is fixedly connected to the limiting frame 7, and is used to support and rotate the mold 4, a cooling machine The rotating mechanism 6 is provided with a cooling tube 10 on the cooling mechanism 8, and the output end of the cooling tube 10 is evenly connected with a plurality of shunt tubes 9 for cooling the mold 4 that has completed the rotational molding and annealing processes. The rotational molding mechanism 11 is provided on one side of the interior of the integrated oven 1, and the annealing mechanism 13 is provided on the other side of the interior of the integrated oven 1, and is arranged in parallel with the rotational molding mechanism up and down or left and right. The rotational molding mechanism 11 and the annealing mechanism 13 are connected by a shunt valve 12 for controlling the heat flow distribution from the burner 3.

[0037] Furthermore, the rotating arm 5 is an L-arm or a straight arm. The design of the L-arm or the straight arm can be selected according to actual needs to improve the adaptability and flexibility of the equipment.

[0038] Furthermore, the fuel of the burner 3 can be one of gasoline, diesel or natural gas, and heat is introduced into the integrated oven 1 through airflow. The gas flow rate is set to 2 to 200 L / min. Multiple fuel options increase the versatility of the equipment, and the adjustable range of the gas flow rate ensures precise control of heat.

[0039] Furthermore, the cooling mechanism 8 cools the mold 4 by using one or both of a fan and water mist. The combined use of the fan and water mist provides a variety of cooling methods, which can be selected according to actual needs, thereby improving the cooling efficiency.

[0040] Furthermore, the mold 4 is made of aluminum or steel. The mold 4 made of aluminum or steel has good heat resistance and durability, and is suitable for the requirements of rotational molding and annealing processes.

[0041] Furthermore, the temperature range of the rotomoulding mechanism 11 is 100-300° C., and the temperature range of the annealing mechanism 13 is 40-150° C. The clear temperature range setting ensures the precise control of the rotomoulding and annealing processes, thereby improving product quality.

[0042] Furthermore, a rock wool, glass fiber and aerogel filling layer is provided in the outer wall interlayer of the integrated oven 1, which is used to insulate and heat-preserve most integrated ovens 1. The rock wool, glass fiber and aerogel filling layer design improves the thermal insulation and heat preservation performance of the integrated oven 1 and reduces energy loss.

[0043] Furthermore, a sealing medium is provided at the connection between the integrated oven 1 and the sealing flange 2 for sealing the connection between the integrated oven and the sealing flange.

[0044] Specifically, in the actual application process, a new type of integrated rotational molding and annealing equipment is prepared, including an integrated oven 1, a sealing flange 2, a mold 4, a rotating mechanism 6, a rotating arm 5, a cooling mechanism 8, a rotational molding mechanism 11 and an annealing mechanism 13. The equipment is made of high-temperature resistant and corrosion-resistant stainless steel materials. The equipment is designed with a temperature control system that can accurately control the temperature and time of rotational molding and annealing. The equipment is designed with a special operating space and method that can meet the operational requirements of rotational molding and annealing. The rotational molding raw material is placed in the rotational molding mechanism 11 of the equipment, and the rotational molding temperature is set to 200°C and the rotational molding time is 60 minutes. During this process, the temperature control system of the equipment will automatically adjust the temperature to ensure the stability of the rotomolding temperature. After the rotomolding is completed, the rotomolded product is transferred to the annealing mechanism 13 of the equipment, and the annealing temperature is set to 80°C and the annealing time is 180 minutes. During this process, the temperature control system of the equipment will automatically adjust the temperature to ensure the stability of the annealing temperature. After the annealing is completed, the rotomolded product is taken out and its size and quality are checked to ensure that it meets the expected requirements. Through the above steps, the two processes of rotomolding and annealing can be completed on one device, which greatly improves production efficiency, reduces equipment investment and maintenance costs, and also ensures the stability of product quality.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient rotational molding device integrating rotational molding and annealing, characterized in that: include: An integrated oven (1), the integrated oven (1) being mounted on a ground guide rail (14), the integrated oven (1) and the ground guide rail (14) being slidably connected, and the integrated oven (1) being used to place the mold (4); A sealing flange (2), the sealing flange (2) being installed on one side of the integrated oven (1), and the burner (3) and the integrated oven (1) being connected via the sealing flange (2); A rotating mechanism (6), the rotating mechanism (6) is installed on one side of the mold (4), and a limiting frame (7) is also installed on the rotating mechanism (6); A rotating arm (5), the rotating arm (5) is mounted on the limiting frame (7) and fixedly connected to the limiting frame (7), and is used to support and rotate the mold (4); A cooling mechanism (8), the cooling mechanism (8) being arranged on one side of the rotating mechanism (6), the cooling mechanism (8) being further provided with a cooling pipe (10), the output end of the cooling pipe (10) being further evenly connected with a plurality of shunt pipes (9) for cooling the mold (4) that has completed the rotational molding and annealing processes; A rotational molding mechanism (11), the rotational molding mechanism (11) being arranged on one side inside the integrated oven (1); The annealing mechanism (13) is arranged on the other side of the interior of the integrated oven (1) and is arranged vertically or horizontally parallel to the rotational molding mechanism. The rotational molding mechanism (11) and the annealing mechanism (13) are connected via a diverter valve (12) for controlling the heat flow distribution from the burner (3).

2. The high-efficiency rotational molding device integrating rotational molding and annealing according to claim 1, characterized in that: The rotating arm (5) is a type of L-arm or a straight arm.

3. The high-efficiency rotational molding device integrating rotational molding and annealing according to claim 2, characterized in that: The fuel of the burner (3) can be one of gasoline, diesel or natural gas, and heat is introduced into the integrated oven (1) through airflow, with the gas flow rate being set at 2 to 200 L / min.

4. The high-efficiency rotational molding device integrating rotational molding and annealing according to claim 3, characterized in that: The cooling mechanism (8) cools the mold (4) by using one or both of a fan and water mist.

5. The high-efficiency rotational molding device integrating rotational molding and annealing according to claim 4, characterized in that: The mold (4) is made of aluminum or steel.

6. The high-efficiency rotational molding device integrating rotational molding and annealing according to claim 5, characterized in that: The temperature range of the rotational molding mechanism (11) is 100-300°C, and the temperature range of the annealing mechanism (13) is 40-150°C.

7. The high-efficiency rotational molding device integrating rotational molding and annealing according to claim 6, characterized in that: The outer wall interlayer of the integrated oven (1) is also provided with a rock wool, glass fiber and aerogel filling layer, which is used to insulate and keep most of the integrated ovens (1) warm.

8. The high-efficiency rotational molding device integrating rotational molding and annealing according to claim 7, characterized in that: A sealing medium (15) is provided at the connection between the integrated oven (1) and the sealing flange (2).

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