Polyurethane rotational molding device

Abstract

The utility model relates to the field of rotational molding devices, in particular to a polyurethane rotational molding device which comprises a first limiting seat. Mounting holes, electric telescopic rods, a supporting block, a second limiting seat, an arc-shaped mounting groove and an electromagnetic heating plate are further included, the four mounting holes are symmetrically formed in the left side and the right side of the top of the first limiting seat, the four electric telescopic rods are arranged in the mounting holes, and the second limiting seat is arranged on the upper side of the first limiting seat; four supporting blocks are mounted at the positions, corresponding to the electric telescopic rods, of the left side and the right side of the second limiting seat, and the upper ends of the electric telescopic rods are connected with the lower sides of the supporting blocks; the electric telescopic rod can drive the supporting block and the second limiting seat to move downwards, so that the second limiting seat is located on the upper side of the upper roller, and meanwhile, the electromagnetic heating plate in the arc-shaped mounting groove is powered, so that the electromagnetic heating plate is continuously heated to the specified temperature; therefore, the purpose of comprehensively and uniformly heating the raw materials in the lower roller and the upper roller is achieved, and the rotational molding quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of rotational molding devices, in particular to a polyurethane rotational molding device. Background Art

[0002] Polyurethane rotational molding device is a kind of equipment used to produce polyurethane products, which is mainly used to make polyurethane materials into products of various shapes through the rotational molding process.

[0003] Common rotomolding devices usually have a heating device on one side of the rotomolding mold. The heating device heats the raw materials in the rotomolding mold to prevent the raw materials from cooling before molding, which can achieve the effect of heating and shaping. However, the device lacks a comprehensive heating component and cannot fully heat the outside of the rotomolding mold. The raw materials in the rotomolding mold are easily heated unevenly, which affects the quality of the rotomolding and reduces the practicality of the rotomolding device.

[0004] Therefore, in view of the fact that the above-mentioned rotational molding device lacks a comprehensive heating component and cannot fully heat the outside of the rotational molding mold, a polyurethane rotational molding device can be designed. The support block and the limit seat 2 can be driven downward by an electric telescopic rod, so that the limit seat 2 is located on the upper side of the upper roller. At the same time, by supplying power to the electromagnetic heating plate in the arc-shaped mounting groove, the electromagnetic heating plate is continuously heated to the specified temperature, thereby achieving the purpose of fully and evenly heating the raw materials in the lower roller and the upper roller, thereby improving the quality of rotational molding. Utility Model Content

[0005] In order to overcome the problem that common rotomolding devices lack comprehensive heating components and cannot fully heat the outside of the rotomolding mold, the raw materials in the rotomolding mold are easily heated unevenly, which affects the quality of the rotomolding and reduces the practicality of the rotomolding device.

[0006] The technical solution of the utility model is: a polyurethane rotational molding device, including a limit seat one; also including a mounting hole, an electric telescopic rod, a support block, a limit seat two, an arc-shaped mounting groove and an electromagnetic heating plate, four mounting holes are symmetrically opened on the left and right sides of the top of the limit seat one, four electric telescopic rods are arranged inside the mounting holes, the limit seat two is arranged on the upper side of the limit seat one, four support blocks are installed on the left and right sides of the limit seat two corresponding to the positions of the electric telescopic rods, the upper end of the electric telescopic rod is connected to the lower side of the support block, two arc-shaped mounting grooves are symmetrically opened on the front sides of the limit seat one and the limit seat two, and the electromagnetic heating plate is arranged inside the arc-shaped mounting groove.

[0007] Preferably, the support block can be driven up and down by the electric telescopic rod. When the support block moves, it will drive the limit seat 2 to move up and down synchronously on the top of the limit seat 1. When heating is required, the electric telescopic rod will drive the support block and the limit seat 2 to move downward, so that the limit seat 2 is located on the upper side of the upper roller. At the same time, by supplying power to the electromagnetic heating plate in the arc-shaped mounting groove, the electromagnetic heating plate is continuously heated to the specified temperature, thereby achieving the purpose of comprehensive and uniform heating of the raw materials in the lower roller and the upper roller, thereby improving the quality of rotational molding.

[0008] Preferably, a sealing gasket is provided at the inner front end of the arc-shaped installation groove, and the sealing gasket is a component made of a metal composite material.

[0009] Preferably, two limiting grooves are symmetrically provided at the top of the limiting seat 1 and the bottom of the limiting seat 2, a lower roller is provided in the limiting groove at the top of the limiting seat 1, and an upper roller is provided on the upper side of the lower roller.

[0010] Preferably, a first connecting plate is installed on the rear side of the lower drum, a second connecting plate is installed on the rear side of the upper drum, and a fixing screw is symmetrically connected to the top of the second connecting plate, and the lower end of the fixing screw is connected to the first connecting plate through a thread.

[0011] Preferably, two jacks are symmetrically provided on the front sides of the lower drum and the upper drum, the interiors of the jacks are connected with self-locking pull rods, and the other ends of the self-locking pull rods are installed with connecting blocks.

[0012] Preferably, a vertical plate is provided on the front side of the connecting block, a motor is installed on the upper end of the front side of the vertical plate, and the output end of the motor is connected to a rotating shaft, and the other end of the rotating shaft passes through the vertical plate and is connected to the front side of the connecting block.

[0013] Preferably, the distance between the lower roller and the upper roller and the limiting groove is 0.5 cm, and the lower roller and the upper roller are components made of heat-conducting material.

[0014] Beneficial effects of the utility model:

[0015] 1. The electric telescopic rod can drive the support block to move up and down. When the support block moves, it will drive the limit seat 2 to move up and down synchronously on the top of the limit seat 1. When heating is required, the electric telescopic rod will drive the support block and the limit seat 2 to move downward so that the limit seat 2 is located on the upper side of the upper roller. At the same time, by supplying power to the electromagnetic heating plate in the arc-shaped mounting groove, the electromagnetic heating plate is continuously heated to the specified temperature, thereby achieving the purpose of comprehensively and evenly heating the raw materials in the lower roller and the upper roller, thereby improving the quality of rotational molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the three-dimensional structure of a polyurethane rotational molding device of the present utility model;

[0017] Figure 2 Shown is a rear view schematic diagram of a polyurethane rotational molding device of the present invention;

[0018] Figure 3 Shown is a schematic diagram of the explosion structure of a limit seat of a polyurethane rotational molding device of the present invention;

[0019] Figure 4 Shown is a schematic diagram of the explosion structure of a vertical plate of a polyurethane rotational molding device of the present invention;

[0020] Figure 5 Shown is a schematic diagram of the explosion structure of the drum of a polyurethane rotational molding device of the present invention.

[0021] Explanation of the accompanying drawings: 1. Limit seat 1; 2. Mounting hole; 3. Electric telescopic rod; 4. Support block; 5. Limit seat 2; 6. Arc-shaped mounting groove; 7. Electromagnetic heating plate; 8. Sealing gasket; 9. Limit groove; 10. Lower roller; 11. Upper roller; 12. First connecting plate; 13. Second connecting plate; 14. Fixing screw; 15. Socket; 16. Self-locking pull rod; 17. Connecting block; 18. Vertical plate; 19. Motor; 20. Rotating shaft. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] See also Figure 1-Figure 5 The utility model provides an embodiment: a polyurethane rotational molding device, including a limited seat 1; also including a mounting hole 2, an electric telescopic rod 3, a support block 4, a limited seat 2 5, an arc-shaped mounting groove 6 and an electromagnetic heating plate 7, four mounting holes 2 are symmetrically opened on the left and right sides of the top of the limited seat 1, four electric telescopic rods 3 are arranged inside the mounting holes 2, a limited seat 2 5 is arranged on the upper side of the limited seat 1, four support blocks 4 are installed on the left and right sides of the limited seat 2 5 corresponding to the positions of the electric telescopic rods 3, the upper end of the electric telescopic rod 3 is connected to the lower side of the support block 4, and two arc-shaped mounting holes are symmetrically opened on the front sides of the limited seat 1 and the limited seat 2 5. The mounting groove 6 and the interior of the arc-shaped mounting groove 6 are provided with an electromagnetic heating plate 7. The electric telescopic rod 3 can drive the support block 4 to move up and down. When the support block 4 moves, it will drive the limit seat 2 5 to move up and down synchronously on the top of the limit seat 1. When heating work is required, the electric telescopic rod 3 will drive the support block 4 and the limit seat 2 5 to move downward, so that the limit seat 2 5 is located on the upper side of the upper roller 11. At the same time, by supplying power to the electromagnetic heating plate 7 in the arc-shaped mounting groove 6, the electromagnetic heating plate 7 is continuously heated to the specified temperature, thereby achieving the purpose of comprehensively and evenly heating the raw materials in the lower roller 10 and the upper roller 11, thereby improving the quality of rotational molding.

[0024] See also Figure 1-Figure 5In this embodiment, a sealing gasket 8 is provided at the front end of the inner portion of the arc-shaped mounting groove 6, and the sealing gasket 8 is a component made of a metal composite material. The sealing gasket 8 can be used to seal the front side of the arc-shaped mounting groove 6 to prevent a large amount of heat loss. The sealing gasket 8 is made of a metal composite material, which can make it have better high temperature resistance. The top of the limit seat 1 and the bottom of the limit seat 2 5 are symmetrically provided with two limiting grooves 9. A lower roller 10 is provided in the limiting groove 9 at the top of the limit seat 1, and an upper roller 11 is provided on the upper side of the lower roller 10. The limiting groove 9 can be used to seal the lower roller 10 and the upper roller The movable range of the cylinder 11 is limited to avoid its deviation during the rotational molding process and improve the safety of use. A first connecting plate 12 is installed on the rear side of the lower roller 10, and a second connecting plate 13 is installed on the rear side of the upper roller 11. The top of the second connecting plate 13 is symmetrically connected with a fixing screw 14, and the lower end of the fixing screw 14 is connected to the first connecting plate 12 by a thread. The first connecting plate 12 and the second connecting plate 13 can be tightly connected by the fixing screw 14. When the first connecting plate 12 and the second connecting plate 13 are connected, the connection between the lower roller 10 and the upper roller 11 will be more tightly fitted.

[0025] See also Figure 1-Figure 5 In this embodiment, two sockets 15 are symmetrically provided on the front sides of the lower roller 10 and the upper roller 11. A self-locking pull rod 16 is connected to the inside of the socket 15, and a connecting block 17 is installed at the other end of the self-locking pull rod 16. By pulling the self-locking pull rod 16, one end of the self-locking pull rod 16 can be inserted into the socket 15, so that the self-locking pull rod 16 can limit the front sides of the lower roller 10 and the upper roller 11. A vertical plate 18 is provided on the front side of the connecting block 17. A motor 19 is installed on the upper end of the front side of the vertical plate 18, and a rotating shaft 20 is connected to the output end of the motor 19. The other end of the rotating shaft 20 passes through the vertical plate 18 and is connected to the front side of the connecting block 17. The rotating shaft 20 can be driven to rotate by the motor 19. When the rotating shaft 20 rotates, it will drive The connecting block 17 rotates, and the rotation of the connecting block 17 will drive the self-locking pull rod 16 to rotate synchronously. When the self-locking pull rod 16 rotates, it will drive the lower roller 10 and the upper roller 11 to rotate synchronously, thereby achieving the rotational molding of the raw materials in the lower roller 10 and the upper roller 11. The distance between the lower roller 10 and the upper roller 11 and the limiting groove 9 is 0.5 cm, and the lower roller 10 and the upper roller 11 are components made of heat-conducting material. By separating the lower roller 10 and the upper roller 11 from the limiting groove 9, the limiting groove 9 can limit the lower roller 10 and the upper roller 11 without affecting their rotational molding work, thereby avoiding greater wear of the lower roller 10 and the upper roller 11 during rotation.

[0026] When working, first open the upper drum 11 to put the polyurethane raw material into the lower drum 10, then close the upper drum 11, and use the fixing screw 14 to tightly connect the first connecting plate 12 and the second connecting plate 13. When the first connecting plate 12 and the second connecting plate 13 are connected, the connection between the lower drum 10 and the upper drum 11 will be more tightly fitted. At the same time, the electric telescopic rod 3 drives the support block 4 and the limit seat 2 5 to move downward, so that the limit seat 2 5 is located on the upper side of the upper drum 11. At the same time, by applying electromagnetic heating to the arc-shaped mounting groove 6, The plate 7 supplies power, so that the electromagnetic heating plate 7 is continuously heated to the specified temperature, thereby achieving the purpose of comprehensively and evenly heating the raw materials in the lower drum 10 and the upper drum 11. At the same time, by starting the motor 19, the rotating shaft 20 can be driven to rotate. When the rotating shaft 20 rotates, it will drive the connecting block 17 to rotate, and the rotation of the connecting block 17 will drive the self-locking rod 16 to rotate synchronously. When the self-locking rod 16 rotates, it will drive the lower drum 10 and the upper drum 11 to rotate synchronously, thereby achieving the purpose of rotational molding of the raw materials in the lower drum 10 and the upper drum 11.

[0027] Through the above steps, the electric telescopic rod 3 can drive the support block 4 and the limit seat 2 5 to move downward, so that the limit seat 2 5 is located on the upper side of the upper roller 11, and at the same time, by supplying power to the electromagnetic heating plate 7 in the arc-shaped mounting groove 6, the electromagnetic heating plate 7 is continuously heated to the specified temperature, thereby achieving the purpose of comprehensively and evenly heating the raw materials in the lower roller 10 and the upper roller 11, improving the quality of rotational molding, and solving the common rotational molding device. Usually, a heating device is set on one side of the rotational molding mold, and the raw materials in the rotational molding mold are heated by the heating device to avoid the raw materials from cooling before molding, which can achieve the effect of heating and shaping, but lacks a comprehensive heating component, and the outside of the rotational molding mold cannot be comprehensively heated. It is easy for the raw materials in the rotational molding mold to be unevenly heated, which affects the quality of rotational molding, reducing the practicality of the rotational molding device.

Claims

1. A polyurethane rotational molding device, comprising a limited position seat (1); characterized in that: The utility model also includes a mounting hole (2), an electric telescopic rod (3), a support block (4), a limit seat 2 (5), an arc-shaped mounting groove (6) and an electromagnetic heating plate (7). Four mounting holes (2) are symmetrically provided on the left and right sides of the top of the limit seat 1 (1). Four electric telescopic rods (3) are arranged inside the mounting holes (2). The upper side of the limit seat 1 (1) is provided with a limit seat 2 (5). Four support blocks (4) are installed on the left and right sides of the limit seat 2 (5) at positions corresponding to the electric telescopic rods (3). The upper end of the electric telescopic rod (3) is connected to the lower side of the support block (4). Two arc-shaped mounting grooves (6) are symmetrically provided on the front sides of the limit seat 1 (1) and the limit seat 2 (5). The electromagnetic heating plate (7) is arranged inside the arc-shaped mounting groove (6).

2. A polyurethane rotational molding device according to claim 1, characterized in that: A sealing gasket (8) is provided at the inner front end of the arc-shaped installation groove (6), and the sealing gasket (8) is a component made of a metal composite material.

3. A polyurethane rotational molding device according to claim 1, characterized in that: Two limiting grooves (9) are symmetrically provided at the top of the limiting seat 1 (1) and the bottom of the limiting seat 2 (5); a lower roller (10) is provided in the limiting groove (9) at the top of the limiting seat 1 (1), and an upper roller (11) is provided on the upper side of the lower roller (10).

4. A polyurethane rotational molding device according to claim 3, characterized in that: A first connecting plate (12) is installed on the rear side of the lower roller (10), a second connecting plate (13) is installed on the rear side of the upper roller (11), and a fixing screw (14) is symmetrically connected to the top of the second connecting plate (13), and the lower end of the fixing screw (14) is connected to the first connecting plate (12) through a thread.

5. The polyurethane rotational molding device according to claim 1, characterized in that: Two jacks (15) are symmetrically provided on the front sides of the lower drum (10) and the upper drum (11). The insides of the jacks (15) are connected with self-locking pull rods (16), and the other ends of the self-locking pull rods (16) are installed with connecting blocks (17).

6. A polyurethane rotational molding device according to claim 1, characterized in that: A vertical plate (18) is provided on the front side of the connecting block (17), a motor (19) is installed on the upper end of the front side of the vertical plate (18), and the output end of the motor (19) is connected to a rotating shaft (20), and the other end of the rotating shaft (20) passes through the vertical plate (18) and is connected to the front side of the connecting block (17).

7. The polyurethane rotational molding device according to claim 1, characterized in that: The distance between the lower roller (10) and the upper roller (11) and the limiting groove (9) is 0.5 cm, and the lower roller (10) and the upper roller (11) are components made of heat-conducting material.

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