Heating device of injection molding machine

Abstract

The utility model provides a heating device of an injection molding machine, belongs to the technical field of injection molding machines, and solves the problems that a gap between an upper movable plate and a lower movable plate cannot be adjusted according to the diameters of different injection molding machines and the use is limited. The heating device of the injection molding machine comprises a supporting plate and four supporting columns, the supporting plate is rotatably connected with a discharging end of the injection molding machine, a driving mechanism is arranged between the supporting plate and the discharging end of the injection molding machine, the supporting columns are slidably connected with two shells, the shells are slidably connected with heating shells, and elastic assemblies are arranged between the shells and the heating shells. A heating groove is formed in the heating shell, and an electric heating wire is fixed in the heating groove. The utility model has the advantage that the gap between the movable plates can be adjusted according to the diameters of injection molding machines with different models.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding machines and relates to a heating device, in particular to a heating device for an injection molding machine. Background Art

[0002] Injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastic materials or thermosetting plastics. The plastic is heated by a heating device and high pressure is applied to the molten plastic to make it ejected and fill the mold cavity.

[0003] After searching, it is found that a Chinese patent document discloses a heating device for an injection molding machine [Application number: 202221702548.7; Publication number: CN 217476533 U]. This heating device for an injection molding machine includes an upper movable plate, a lower movable plate, a locking assembly, a heating assembly and an infusion assembly. The locking assembly is arranged on the upper movable plate and the lower movable plate to fix the position of the upper movable plate and the lower movable plate; the heating assembly is arranged in the upper movable plate and the lower movable plate to heat the discharge end of the injection molding machine; the infusion assembly is connected to the heating assembly; when the present application is used, it is easy to adjust, heats up quickly, and has stable heat. It can continuously heat the material in the injection molding machine, and the material is heated evenly, which has a high application value.

[0004] Although the infusion assembly and heating assembly disclosed in this patent are easy to adjust, heat up quickly, and have stable heat during use, and can continuously heat the materials in the injection molding machine, the materials are heated evenly, and have high application value, the gap between the upper movable plate and the lower movable plate cannot be adjusted according to the diameter of different injection molding machines, which has limitations during use. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the prior art and propose a heating device for an injection molding machine. The technical problem to be solved by the utility model is: how to adjust the gap between the movable plates according to the diameters of injection molding machines of different models.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A heating device for an injection molding machine comprises a support plate and four support columns, wherein the support plate is rotatably connected to a discharge end of the injection molding machine, a driving mechanism is arranged between the support plate and the discharge end of the injection molding machine, two outer shells are slidably connected to the support columns, a heating shell is slidably connected to the outer shell, an elastic component is arranged between the outer shell and the heating shell, a heating groove is provided in the heating shell, and an electric heating wire is fixed in the heating groove.

[0008] The working principle of the utility model is as follows: the outer shell is driven to move in a corresponding direction by moving a slider; when the heating shell is close to the injection molding machine, the gap between the two heating shells is adjusted according to the diameter of the injection molding machine through an elastic component, so that it is convenient to be applicable to injection molding machines of different models and diameters; the heat is heated by the electric heating wire in the heating groove, and the heat is transferred to the inside of the injection molding machine through the heating shell, so that the material inside the injection molding machine is heated and melted; the injection molding machine is driven to rotate by a driving mechanism, so that the injection molding machine is heated more evenly.

[0009] The driving mechanism includes a motor 1 fixed on one of the support plates, a gear 1 is fixed on the output shaft end of the motor 1, a gear 2 is fixed on the discharge end of the injection molding machine, and the gear 1 is meshed and connected with the gear 2.

[0010] With the above structure, by installing gear one and gear two, starting motor one drives gear one to rotate, gear one drives gear two to rotate, and drives the injection molding machine to rotate at the same time, so that the injection molding machine is heated more evenly.

[0011] Two of the support columns are rotatably connected to the upper ends with bidirectional threaded rods, two of the support columns are fixed to the lower ends with guide rods, one of the support columns is fixed with motor 2, the output shaft end of motor 2 is fixedly connected to the bidirectional threaded rod, and the other two support columns are fixed with guide rods at both ends, the bidirectional threaded rods are threadedly connected with sliders, the guide rods are slidably connected with sliders, and the sliders are fixedly connected to the outer shell.

[0012] With the above structure, by installing the bidirectional threaded rod, starting motor 2 to drive the bidirectional threaded rod to rotate, the slider drives the two shells to move in corresponding directions, so that the two heating shells wrap the injection molding machine and heat the injection molding machine.

[0013] The inner wall of the heating shell is rotatably connected with a plurality of balls.

[0014] With the above structure, by installing the ball bearings, the injection molding machine is wrapped by the heating shell while the rotation of the injection molding machine in the heating shell is not affected by the ball bearings.

[0015] The elastic component includes a support frame slidably connected to the shell, the other end of the support frame is fixedly connected to the heating shell, a plurality of springs are fixed to the inner wall of the shell, and the other end of the springs is fixedly connected to the outer wall of the heating shell.

[0016] By adopting the above structure and installing the spring, when the shell moves in the corresponding direction, the shell generates pressure on the injection molding machine when the heating shell contacts the injection molding machine, compressing the spring between the heating shell and the shell, thereby realizing the adjustment of the gap between the two heating shells according to the diameter of the injection molding machine, and having a wider range of applications.

[0017] Compared with the prior art, the heating device for injection molding machine has the following advantages:

[0018] 1. Move the slider to drive the shell to move in the corresponding direction. When the heating shell is close to the injection molding machine, the gap between the two heating shells is adjusted according to the diameter of the injection molding machine through the elastic component, which is convenient for injection molding machines of different models and diameters. The heat is heated by the heating wire in the heating tank, and the heat is transferred to the inside of the injection molding machine through the heating shell to heat and melt the material inside the injection molding machine. The injection molding machine is driven to rotate by the driving mechanism, so that the injection molding machine is heated more evenly.

[0019] 2. By installing gear 1 and gear 2, starting motor 1 drives gear 1 to rotate, gear 1 drives gear 2 to rotate, and at the same time drives the injection molding machine to rotate, so that the injection molding machine is heated more evenly.

[0020] 3. By installing the spring, when the shell moves in the corresponding direction, the shell generates pressure on the injection molding machine when the heating shell contacts the injection molding machine, compressing the spring between the heating shell and the shell, thereby adjusting the gap between the two heating shells according to the diameter of the injection molding machine, and having a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a side sectional view of the utility model.

[0023] Figure 3 It is a front sectional view of the utility model.

[0024] In the figure, 1. support plate; 2. support column; 3. discharge end of injection molding machine; 4. outer shell; 5. heating shell; 6. heating tank; 7. heating wire; 8. motor 1; 9. gear 1; 10. gear 2; 11. spring; 12. bidirectional threaded rod; 13. motor 2; 14. guide rod; 15. slider; 16. ball bearing; 17. support frame. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] like Figure 1-Figure 3As shown, the injection molding machine heating device includes a support plate 1 and four support columns 2, the support plate 1 is rotatably connected to the injection molding machine discharge end 3, a driving mechanism is arranged between the support plate 1 and the injection molding machine discharge end 3, two shells 4 are slidably connected to the support column 2, a heating shell 5 is slidably connected to the shell 4, an elastic component is arranged between the shell 4 and the heating shell 5, a heating groove 6 is opened in the heating shell 5, and a heating wire 7 is fixed in the heating groove 6.

[0027] The outer shell 4 is driven to move in the corresponding direction by moving the slider 15. When the heating shell 5 is close to the injection molding machine, the gap between the two heating shells 5 is adjusted according to the diameter of the injection molding machine through the elastic component, which is convenient for injection molding machines of different models and diameters. The electric heating wire 7 in the heating groove 6 is heated, and the heat is transferred to the inside of the injection molding machine through the heating shell 5 to heat and melt the material inside the injection molding machine. The injection molding machine is driven to rotate by the driving mechanism, so that the injection molding machine is heated more evenly.

[0028] The driving mechanism includes a motor 8 fixed on one of the support plates 1, a gear 9 is fixed to the output shaft end of the motor 8, a gear 2 10 is fixed to the discharge end 3 of the injection molding machine, and the gear 1 9 is meshingly connected with the gear 2 10.

[0029] With the above structure, by installing gear 1 9 and gear 2 10, starting motor 1 8 drives gear 1 9 to rotate, gear 1 9 drives gear 2 10 to rotate, and drives the injection molding machine to rotate at the same time, so that the injection molding machine is heated more evenly.

[0030] Two of the support columns 2 are rotatably connected to the upper ends with bidirectional threaded rods 12, and two of the support columns 2 are fixed to the lower ends with guide rods 14. One of the support columns 2 is fixed with a second motor 13, and the output shaft end of the second motor 13 is fixedly connected to the bidirectional threaded rod 12. The other two support columns 2 are fixed with guide rods 14 at both upper and lower ends, and the bidirectional threaded rod 12 is threadedly connected with a slider 15, and the guide rod 14 is slidably connected with the slider 15, and the slider 15 is fixedly connected to the outer shell 4.

[0031] With the above structure, by installing the bidirectional threaded rod 12, starting the second motor 13 to drive the bidirectional threaded rod 12 to rotate, the slider 15 drives the two shells 4 to move in corresponding directions, so that the two heating shells 5 wrap the injection molding machine and heat the injection molding machine.

[0032] The inner wall of the heating shell 5 is rotatably connected with a plurality of balls 16 .

[0033] With the above structure, by installing the ball bearings 16 , it is achieved that the injection molding machine is wrapped by the heating shell 5 while the ball bearings 16 do not affect the rotation of the injection molding machine in the heating shell 5 .

[0034] The elastic component includes a support frame 17 slidably connected to the outer shell 4, and the other end of the support frame 17 is fixedly connected to the heating shell 5. A plurality of springs 11 are fixed to the inner wall of the outer shell 4, and the other end of the spring 11 is fixedly connected to the outer wall of the heating shell 5.

[0035] By adopting the above structure and installing the spring 11, when the shell 4 moves in the corresponding direction, the shell 4 generates pressure on the injection molding machine when the heating shell 5 contacts the injection molding machine, so that the spring 11 between the heating shell 5 and the shell 4 is compressed, thereby realizing the adjustment of the gap between the two heating shells 5 according to the diameter of the injection molding machine, and having a wider range of applications.

[0036] The working principle of the utility model is as follows: the starting motor 2 13 drives the bidirectional threaded rod 12 to rotate, the slider 15 drives the two shells 4 to move in corresponding directions, and when the heating shell 5 contacts the injection molding machine, the shell 4 generates pressure on the injection molding machine, so that the spring 11 between the heating shell 5 and the shell 4 is compressed, thereby adjusting the gap between the two heating shells 5 according to the diameter of the injection molding machine, heating is performed by the electric heating wire 7 in the heating groove 6, and the heat is transferred to the inside of the injection molding machine through the heating shell 5, so that the material inside the injection molding machine is heated and melted, the starting motor 18 drives the gear 19 to rotate, the gear 19 drives the gear 2 10 to rotate, and at the same time drives the injection molding machine to rotate.

[0037] In summary, the elastic component can be used to adjust the gap between the movable plates according to the diameters of injection molding machines of different models.

[0038] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A heating device for an injection molding machine, comprising a support plate (1) and four support columns (2), characterized in that: The support plate (1) is rotatably connected to the discharge end (3) of the injection molding machine, a driving mechanism is arranged between the support plate (1) and the discharge end (3) of the injection molding machine, two outer shells (4) are slidably connected to the support column (2), a heating shell (5) is slidably connected to the outer shell (4), an elastic component is arranged between the outer shell (4) and the heating shell (5), a heating groove (6) is provided in the heating shell (5), and an electric heating wire (7) is fixed in the heating groove (6).

2. The heating device for an injection molding machine according to claim 1, characterized in that: The driving mechanism comprises a motor 1 (8) fixed on one of the support plates (1), a gear 1 (9) being fixed on the output shaft end of the motor 1 (8), a gear 2 (10) being fixed on the discharge end (3) of the injection molding machine, and the gear 1 (9) being meshingly connected with the gear 2 (10).

3. The heating device for an injection molding machine according to claim 1, characterized in that: The upper ends of two of the support columns (2) are rotatably connected to bidirectional threaded rods (12), the lower ends of the two support columns (2) are fixed to guide rods (14), one of the support columns (2) is fixed to a second motor (13), the output shaft end of the second motor (13) is fixedly connected to the bidirectional threaded rod (12), and the upper and lower ends of the other two support columns (2) are fixed to guide rods (14), the bidirectional threaded rod (12) is threadedly connected to a slider (15), the guide rod (14) is slidably connected to a slider (15), and the slider (15) is fixedly connected to the housing (4).

4. The heating device for an injection molding machine according to claim 1, characterized in that: The inner wall of the heating shell (5) is rotatably connected with a plurality of balls (16).

5. The heating device for an injection molding machine according to claim 1, characterized in that: The elastic component comprises a support frame (17) slidably connected to the outer shell (4), the other end of the support frame (17) being fixedly connected to the heating shell (5), a plurality of springs (11) being fixedly connected to the inner wall of the outer shell (4), the other end of the spring (11) being fixedly connected to the outer wall of the heating shell (5).

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