Rotational molding product production heating equipment

By introducing a motor-driven rotating plate and connecting rod structure into the rotational molding product heating equipment, the spacing of the gas spray guns can be adjusted, solving the problem of uneven heating, achieving uniform heating of the rotational molding mold and convenient replacement of the gas spray guns, thus improving the heating effect and operating efficiency of the equipment.

CN224028180UActive Publication Date: 2026-03-24NANTONG ALLSHINING PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing rotational molding heating equipment is prone to uneven heating when heating long rotational molding molds, which affects product quality.

Method used

A structure including a motor, a rotating shaft, a rotating plate, a connecting rod, and a fixing rod was designed, which enables the gas spray gun to rotate by driving the rotating plate through the motor, adjusting the spray gun spacing, realizing the reciprocating motion of the gas spray gun, and ensuring uniform heating of the rotational molding mold.

Benefits of technology

It enables uniform heating of long rotational molding dies, improves heating efficiency and equipment utilization, and simplifies the replacement and installation process of gas spray guns.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rotational molding products, and discloses rotational molding product production heating equipment which comprises a fixing frame, fixing plates are fixedly connected to the front side and the rear side of an inner cavity of the fixing frame, connecting plates are movably connected to the outer surfaces of the fixing plates, and shells are fixedly connected to the left side and the right side of the front face of each fixing plate. And a motor is fixedly connected to the interior of the shell. By arranging the motor, the rotating shaft, the rotating plate, the connecting rod and the fixed rod, when the motor starts to operate, the rotating shaft drives the rotating plate to rotate, and the connecting rod moves, so that the fixed rod drives the connecting plate to move in the direction away from the shell under the limiting action of the fixed plate; and finally, the function of adjusting the distance between the gas spray guns is achieved, so that in the heating operation process of the equipment, due to the reciprocating motion of the gas spray guns, the function of evenly heating the long rotational molding mold can be achieved, and the heating effect of the device is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to rotomolding product technical field, more specifically, the utility model relates to a rotomolding product production heating equipment. BACKGROUND

[0002] Rotomolding is a kind of forming process by heating rotary mould to make plastic powder melt uniformly and adhere to the inner wall of mould, is suitable for producing hollow, complex shape plastic products, has the advantages such as low mould cost, flexible design, uniform wall thickness, can produce large products, is widely used in the field such as storage tank, container, amusement equipment, automobile parts, is especially suitable for small batch, customized production, and material utilization rate is high and waste is little, is a kind of efficient, environmental protection plastic processing technology.

[0003] The operator often uses corresponding heating equipment to heat rotomolding products during the production of rotomolding products, and the existing heating equipment has basic heating function, but the position of the gas spray gun is usually fixed due to the simple structure of the general heating equipment, so that the heating is not uniform during the heating of the long rotomolding mould, which not only reduces the heating effect of the device, but also reduces the quality of the rotomolding product, and therefore needs to be improved. UTILITY MODEL CONTENT

[0004] In order to overcome the defects of the prior art, the utility model provides a rotomolding product production heating equipment, which has the advantages of uniform heating.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a rotomolding product production heating equipment, including fixed frame, the front and rear of the fixed frame inner chamber are all fixedly connected with fixed plate, the outer surface of the fixed plate is movably connected with connecting plate, the left and right sides of the front of the fixed plate are all fixedly connected with shell, the inside of the shell is fixedly connected with motor, the other end of motor output shaft is fixedly sleeved with rotating shaft, the other end of rotating shaft is fixedly sleeved with rotating plate, the left and right sides of the rotating plate are all hinged with connecting rod, the other end of connecting rod is hinged with fixed rod, the other end of fixed rod is fixedly connected with the front of connecting plate.

[0006] As a preferred technical scheme of the utility model, the back of the connecting plate is fixedly connected with connecting frame, the outer surface of the connecting frame is fixedly connected with mounting plate, the inside of the front of the mounting plate is movably sleeved with handle, the other end of the handle penetrates through the mounting plate and extends to the inner chamber of the mounting plate and is fixedly sleeved with gear.

[0007] As a preferred technical scheme of the utility model, the upper and lower surfaces of the gear outer surface are all engaged and connected with toothed plates, the outer surface of the toothed plate is fixedly connected with a mounting rod, and the outer surface of the mounting rod is movably connected with the inside of the connecting frame.

[0008] As a preferred technical scheme of the utility model, the other end of the mounting rod is fixedly connected with a clamping plate, the outer surface of the clamping plate is movably connected with the inner surface of the connecting frame, and the inner side of the clamping plate is movably connected with a gas spray gun.

[0009] As a preferred technical scheme of the utility model, the top and bottom of the mounting plate inner cavity are all fixedly connected with limiting rods, and the outer surface of the limiting rod is movably sleeved with the inside of the toothed plate.

[0010] As a preferred technical scheme of the utility model, the outer surface of the limiting rod is movably sleeved with a spring, the right end of the spring is fixedly connected with the inner cavity of the mounting plate, and the left end of the spring is fixedly connected with the right side of the toothed plate.

[0011] As a preferred technical scheme of the utility model, the number of the fixed plates is two, the sizes of the two fixed plates are same, and the outer surfaces of the two fixed plates are all smooth.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses a motor, a rotating shaft, a rotating plate, a connecting rod and a fixed rod are arranged, when the motor starts to run, the rotating shaft drives the rotating plate to rotate, and the connecting rod moves, so that the fixed rod drives the connecting plate to move away from the shell under the limiting action of the fixed plate, finally realizes the function of adjusting the gas spray gun spacing, makes the equipment in the process of heating operation, because of the reciprocating motion of the gas spray gun, can realize the uniform heating function to the long length rotational molding mold, improves the heating effect of the device. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of the utility model;

[0015] Figure 2 It is the sectional structure schematic diagram of the front of the utility model;

[0016] Figure 3 It is the sectional structure schematic diagram of the top of the utility model;

[0017] Figure 4 It is the sectional structure schematic diagram of the gas spray gun of the utility model;

[0018] Figure 5 It is the sectional structure schematic diagram of the gear of the utility model.

[0019] In the diagram: 1. Fixing frame; 2. Fixing plate; 3. Connecting plate; 4. Housing; 5. Motor; 6. Shaft; 7. Rotating plate; 8. Connecting rod; 9. Fixing rod; 10. Connecting frame; 11. Mounting plate; 12. Handle; 13. Gear; 14. Tooth plate; 15. Limiting rod; 16. Spring; 17. Mounting rod; 18. Clamping plate; 19. Gas spray gun. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 5 As shown, this utility model provides a heating device for producing rotational molding products, including a fixed frame 1. Fixed plates 2 are fixedly connected to the front and rear sides of the inner cavity of the fixed frame 1. A connecting plate 3 is movably connected to the outer surface of the fixed plate 2. A shell 4 is fixedly connected to the left and right sides of the front of the fixed plate 2. A motor 5 is fixedly connected inside the shell 4. A rotating shaft 6 is fixedly sleeved at the other end of the output shaft of the motor 5. A rotating plate 7 is fixedly sleeved at the other end of the rotating shaft 6. A connecting rod 8 is hinged to the left and right sides of the rotating plate 7. A fixed rod 9 is hinged to the other end of the connecting rod 8. The other end of the fixed rod 9 is fixedly connected to the front of the connecting plate 3. When the motor 5 starts running, the rotating shaft 6 will drive the rotating plate 7 to rotate, and the connecting rod 8 will move. As a result, the fixed rod 9 will drive the connecting plate 3 to move towards the shell 4 under the limiting action of the fixed plate 2.

[0022] The connecting plate 3 is fixedly connected to the back of the connecting frame 10, and the outer surface of the connecting frame 10 is fixedly connected to the mounting plate 11. The front of the mounting plate 11 is movably sleeved with a handle 12. The other end of the handle 12 passes through the mounting plate 11 and extends into the inner cavity of the mounting plate 11 and is fixedly sleeved with a gear 13. When the operator rotates the handle 12, the handle 12 will drive the gear 13 to rotate under the limiting action of the mounting plate 11.

[0023] Among them, gear 13 has a toothed plate 14 meshing with both the upper and lower sides of its outer surface. A mounting rod 17 is fixedly connected to the outer surface of the toothed plate 14. The outer surface of the mounting rod 17 is movably connected to the interior of the connecting frame 10. When the gear 13 rotates, the toothed plate 14 will drive the mounting rod 17 to move horizontally in opposite directions under the limiting action of the connecting frame 10.

[0024] Another end of the mounting rod 17 is fixedly connected with a clamping plate 18, the outer surface of the clamping plate 18 is movably connected with the inner surface of the connecting frame 10, and the inner side of the clamping plate 18 is movably connected with a gas spray gun 19; when the mounting rod 17 drives the clamping plate 18 to move away from the gas spray gun 19 under the limiting action of the connecting frame 10, the fixing effect on the gas spray gun 19 is released, and the purpose of facilitating disassembly and assembly of the gas spray gun 19 is achieved.

[0025] The top and bottom of the inner cavity of the mounting plate 11 are fixedly connected with limiting rods 15, and the outer surfaces of the limiting rods 15 are movably sleeved with the inner part of the toothed plate 14; the outer surface of the limiting rod 15 is smooth, so that the toothed plate 14 moves more smoothly on the outer surface of the limiting rod 15; and due to the limiting action of the limiting rod 15, the toothed plate 14 moves horizontally left and right.

[0026] The outer surface of the limiting rod 15 movably sleeves a spring 16, the right end of the spring 16 is fixedly connected with the inner cavity of the mounting plate 11, and the left end of the spring 16 is fixedly connected with the right side of the toothed plate 14; due to the elastic force of the spring 16, the toothed plate 14 has a good reset effect in the subsequent movement process, and the clamping plate 18 can always realize the clamping and fixing effect on the gas spray gun 19.

[0027] The number of the fixed plates 2 is two, the sizes of the two fixed plates 2 are the same, and the outer surfaces of the two fixed plates 2 are smooth; such a design makes the connecting plate 3 move more smoothly on the outer surface of the fixed plate 2, reduces the friction between the fixed plate 2 and the connecting plate 3, and prolongs the service life of the fixed plate 2 and the connecting plate 3.

[0028] The working principle and use process of the utility model are as follows:

[0029] When it is necessary to adjust the spacing of the gas spray gun 19 to meet the length of the rotational molding mold, the motor 5 is started, the rotating plate 7 is driven to rotate by the rotating shaft 6, the connecting rod 8 is moved, the connecting plate 3 is driven to move away from the housing 4 under the limiting action of the fixed plate 2, and finally the function of adjusting the spacing of the gas spray gun 19 is realized; during the heating operation of the equipment, the length of the rotational molding mold can be uniformly heated due to the reciprocating movement of the gas spray gun 19, and the heating effect of the device is improved.

[0030] When the gas lance 19 is damaged during long-term use and needs to be replaced, at this time, the rotating handle 12 is rotated, the gear 13 is rotated, the tooth plate 14 overcomes the elastic force of the spring 16 and is limited by the limiting rod 15, and moves horizontally away from the handle 12, so that the mounting rod 17 drives the clamping plate 18 to move away from the gas lance 19, and finally the fixing effect of the gas lance 19 is released, thereby realizing the function of conveniently replacing the gas lance 19, improving the efficiency of the operator in disassembling and assembling the gas lance 19, and reducing the labor intensity of the operator.

[0031] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A heating device for producing rotational molding products, comprising a fixed frame (1), characterized in that: Fixed plates (2) are fixedly connected to the front and rear sides of the inner cavity of the fixed frame (1). A connecting plate (3) is movably connected to the outer surface of the fixed plate (2). A shell (4) is fixedly connected to the left and right sides of the front of the fixed plate (2). A motor (5) is fixedly connected inside the shell (4). A rotating shaft (6) is fixedly sleeved at the other end of the output shaft of the motor (5). A rotating plate (7) is fixedly sleeved at the other end of the rotating shaft (6). A connecting rod (8) is hinged to the left and right sides of the rotating plate (7). A fixed rod (9) is hinged to the other end of the connecting rod (8). The other end of the fixed rod (9) is fixedly connected to the front of the connecting plate (3).

2. The heating equipment for producing rotationally molded products according to claim 1, characterized in that: A connecting frame (10) is fixedly connected to the back of the connecting plate (3), and a mounting plate (11) is fixedly connected to the outer surface of the connecting frame (10). A handle (12) is movably sleeved inside the front of the mounting plate (11), and the other end of the handle (12) passes through the mounting plate (11) and extends into the inner cavity of the mounting plate (11) and is fixedly sleeved with a gear (13).

3. The heating equipment for producing rotationally molded products according to claim 2, characterized in that: The gear (13) has a toothed plate (14) meshing with both the upper and lower sides of its outer surface. The toothed plate (14) has a mounting rod (17) fixedly connected to its outer surface. The outer surface of the mounting rod (17) is movably connected to the interior of the connecting frame (10).

4. The heating equipment for producing rotationally molded products according to claim 3, characterized in that: The other end of the mounting rod (17) is fixedly connected to a clamping plate (18), the outer surface of the clamping plate (18) is movably connected to the inner surface of the connecting frame (10), and a gas spray gun (19) is movably connected to the inner side of the clamping plate (18).

5. The heating equipment for producing rotationally molded products according to claim 2, characterized in that: Limiting rods (15) are fixedly connected to the top and bottom of the inner cavity of the mounting plate (11), and the outer surface of the limiting rods (15) is movably sleeved with the inside of the toothed plate (14).

6. The heating equipment for producing rotationally molded products according to claim 5, characterized in that: A spring (16) is movably sleeved on the outer surface of the limiting rod (15). The right end of the spring (16) is fixedly connected to the inner cavity of the mounting plate (11), and the left end of the spring (16) is fixedly connected to the right side of the toothed plate (14).

7. The heating equipment for producing rotationally molded products according to claim 1, characterized in that: The number of fixing plates (2) is two, the two fixing plates (2) are the same size, and the outer surfaces of the two fixing plates (2) are smooth.