Heating device of efficient and energy-saving elbow hot pushing machine

Abstract

The utility model relates to the technical field of elbow processing equipment, in particular to a heating device of a high-efficiency energy-saving elbow hot pushing machine, which comprises an insulating support plate, a heating ring and a heat preservation ring, the first junction pole and the second junction pole fixedly penetrate through the front side wall and the rear side wall of the insulation supporting plate and are fixedly connected with the two ends of the heating ring respectively, the third junction pole and the fourth junction pole fixedly penetrate through the front side wall and the rear side wall of the insulation supporting plate and are fixedly connected with the two ends of the heat preservation ring respectively, and the electric connecting piece is fixedly arranged between the second junction pole and the third junction pole. The heating ring is of a straight-pipe-shaped spiral structure, the heat preservation ring is of a bent-pipe-shaped spiral structure, and the spiral inner diameter of the heating ring is smaller than that of the heat preservation ring. The heating ring and the heat preservation ring are designed in a split mode, installation is flexible, the manufacturing cost is low, the core mold is preheated through the heat preservation ring and then integrally heated through the heating ring and the heat preservation ring, partitioned heating is achieved, efficiency is high, and electric energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of elbow processing equipment, in particular to a heating device of a high-efficiency and energy-saving elbow hot push machine. Background Art

[0002] The elbow hot pushing machine is a device used to manufacture elbows. It processes the straight pipe section into an elbow of the required angle through heating and pushing processes.

[0003] The Chinese utility model with publication number CN218611131U discloses an elbow hot pusher, which heats the pipe on the core mold through a medium frequency heating device. At present, the medium frequency heating device is usually formed by a heating ring and a heat preservation ring with the same spiral inner diameter. When the pipe is preheated normally, the position of the heating ring just corresponds to the smallest part of the core mold, resulting in a large gap between the heating ring and the pipe. In order to meet the process requirements, the medium frequency heating power has to be increased, resulting in a large waste of energy. Utility Model Content

[0004] The purpose of the utility model is to provide a heating device for an efficient and energy-saving elbow hot pusher to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heating device for an efficient and energy-saving elbow hot push machine, comprising an insulating support plate, a heating ring and a heat preservation ring fixedly arranged on the front side of the insulating support plate from right to left, a first connecting rod and a second connecting rod fixedly arranged from right to left, which penetrate the front and rear side walls of the insulating support plate and are respectively fixedly connected to the two ends of the heating ring, a third connecting rod and a fourth connecting rod fixedly arranged from right to left, which penetrate the front and rear side walls of the insulating support plate and are respectively fixedly connected to the two ends of the heat preservation ring, and an electric connecting piece fixedly arranged between the second connecting rod and the third connecting rod; the heating ring is a straight tube-shaped spiral structure, the heat preservation ring is a curved tube-shaped spiral structure, and the spiral inner diameter of the heating ring is smaller than the spiral inner diameter of the heat preservation ring.

[0006] Optionally, the center of the right end surface of the insulation ring is aligned with the axis of the heating ring, the number of spiral turns of the heating ring is 8 to 10, and the number of spiral turns of the insulation ring 3 is 4 to 6.

[0007] Optionally, the electrical connector includes a first tab welded to the second connecting rod and a second tab welded to the third connecting rod, the lower surface of the first tab abuts against the upper surface of the second tab, and the lower surface of the first tab is bolted to the upper surface of the second tab.

[0008] Optionally, a supporting assembly is fixedly provided below the insulating support plate, and the supporting assembly includes a bracket, a linear module fixedly provided on the upper surface of the bracket, and a rotating support and an electric push rod fixedly provided on the upper surface of the slider end of the linear module in sequence along the left and right directions; the upper and lower support plates of the rotating support are respectively fixedly connected to the lower surface of the insulating support plate and the upper surface of the slider end of the linear module, and the top of the push rod end of the electric push rod is hinged to the lower surface of the insulating support plate.

[0009] Optionally, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are all perpendicular to the front side wall of the insulating support plate, and four insulating and heat-insulating sleeves are fixedly provided on the front side wall of the insulating support plate, and the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are respectively fixed and penetrate the four insulating and heat-insulating sleeves.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the heating ring and the insulation ring in the utility model adopt a split design, which is flexible to install and has a low cost. The insulation ring is used to preheat the core mold first, and then the heating ring and the insulation ring are used to heat the core mold as a whole, thereby realizing zoned heating and efficiently saving electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 for Figure 1 The enlarged structural diagram of the middle A part;

[0013] Figure 3 It is a structural schematic diagram of the insulating support plate and the supporting assembly in the utility model.

[0014] In the figure: 1. Insulating support plate; 2. Heating coil; 3. Insulating coil; 4. First connecting rod; 5. Second connecting rod; 6. Third connecting rod; 7. Fourth connecting rod; 8. Electrical connecting piece; 801. First connecting piece; 802. Second connecting piece; 9. Support assembly; 901. Bracket; 902. Linear module; 903. Rotating support; 904. Electric push rod; 10. Insulating and heat-insulating sleeve. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Example: See Figure 1and Figure 2 The utility model provides a heating device for an efficient and energy-saving elbow hot push machine, comprising an insulating support plate 1, a heating coil 2 and a heat preservation coil 3 fixedly arranged on the front side of the insulating support plate 1 from right to left, a first connecting rod 4 and a second connecting rod 5 fixedly arranged from right to left, which penetrate the front and rear side walls of the insulating support plate 1 and are respectively fixedly connected to the two ends of the heating coil 2, a third connecting rod 6 and a fourth connecting rod 7 fixedly arranged from right to left, which penetrate the front and rear side walls of the insulating support plate 1 and are respectively fixedly connected to the two ends of the heat preservation coil 3, and an electric connecting piece 8 fixedly arranged between the second connecting rod 5 and the third connecting rod 6. Among them, the heating coil 2 is a straight tube-shaped spiral structure, the heat preservation coil 3 is a curved tube-shaped spiral structure, and the inner diameter of the spiral of the heating coil 2 is smaller than the inner diameter of the spiral of the heat preservation coil 3, the center of the right end face of the heat preservation coil 3 is aligned with the axis of the heating coil 2, the number of spiral turns of the heating coil 2 is 9, and the number of spiral turns of the heat preservation coil 3 is 5.

[0017] When the utility model is working, the third connecting rod 6 and the fourth connecting rod 7 are first connected to the power supply, so that the insulation ring 3 preheats the core mold first, and then the third connecting rod 6 is disconnected, and the first connecting rod 4 and the fourth connecting rod 7 are connected to the power supply, so that the heating ring 2 and the insulation ring 3 heat the core mold as a whole.

[0018] In the utility model, the heating ring 2 and the insulation ring 3 are of split design, which are flexible to install and low in cost. The insulation ring 3 is used to preheat the core mold first, and then the heating ring 2 and the insulation ring 3 are used to heat the core mold as a whole, so as to realize zone heating and efficiently save electricity.

[0019] In addition to the above embodiment, the electric connector 8 in this embodiment includes a first strap 801 welded to the second connecting rod 5 and a second strap 802 welded to the third connecting rod 6. The lower surface of the first strap 801 abuts against the upper surface of the second strap 802, and the lower surface of the first strap 801 is bolted to the upper surface of the second strap 802. The material of the electric connector 8 is consistent with the material of the second connecting rod 5 and the material of the third connecting rod 6. As a connection between the heating coil 2 and the insulation coil 3, the electric connector 8 is easy to disassemble and assemble.

[0020] In addition to the above embodiments, in this embodiment, the first connecting rod 4, the second connecting rod 5, the third connecting rod 6 and the fourth connecting rod 7 are all perpendicular to the front side wall of the insulating support plate 1, and four insulating and heat-insulating sleeves 10 are fixedly provided on the front side wall of the insulating support plate 1. The first connecting rod 4, the second connecting rod 5, the third connecting rod 6 and the fourth connecting rod 7 are respectively fixed and penetrated through the four insulating and heat-insulating sleeves 10, and the insulating and heat-insulating sleeves 10 improve the installation strength of the first connecting rod 4, the second connecting rod 5, the third connecting rod 6 and the fourth connecting rod 7.

[0021] In addition to the above examples, see Figure 3In this embodiment, a support assembly 9 is fixedly provided below the insulating support plate 1. The support assembly 9 includes a bracket 901, a linear module 902 fixedly provided on the upper surface of the bracket 901, and a rotating support 903 and an electric push rod 904 fixedly provided on the upper surface of the slider end of the linear module 902 in the left and right directions. The upper and lower support plates of the rotating support 903 are fixedly connected to the lower surface of the insulating support plate 1 and the upper surface of the slider end of the linear module 902, respectively, and the top of the push rod end of the electric push rod 904 is hinged to the lower surface of the insulating support plate 1. The utility model can change the relative position of the heating coil 2 and the insulation coil 3 relative to the core mold in the left and right directions through the linear module 902, and can push the insulating support plate 1 to rotate 30° to 40° through the electric push rod 904, so that the heating coil 2 can be maximally covered on the outside of the core mold, which is convenient for the heating coil 2 to heat the core mold.

[0022] 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. A heating device for an efficient and energy-saving elbow hot push machine, characterized in that: The invention comprises an insulating support plate (1), a heating coil (2) and a heat preservation coil (3) fixedly arranged on the front side of the insulating support plate (1) in sequence from right to left, a first connecting rod (4) and a second connecting rod (5) fixedly arranged from right to left, which penetrate the front and rear side walls of the insulating support plate (1) and are respectively fixedly connected to the two ends of the heating coil (2), a third connecting rod (6) and a fourth connecting rod (7) fixedly arranged from right to left, which penetrate the front and rear side walls of the insulating support plate (1) and are respectively fixedly connected to the two ends of the heat preservation coil (3), and an electric connecting piece (8) fixedly arranged between the second connecting rod (5) and the third connecting rod (6); the heating coil (2) is a straight tube-shaped spiral structure, the heat preservation coil (3) is a bent tube-shaped spiral structure, and the inner diameter of the spiral of the heating coil (2) is smaller than the inner diameter of the spiral of the heat preservation coil (3).

2. The heating device of the high-efficiency and energy-saving elbow hot push machine according to claim 1 is characterized in that: The center of the right end surface of the insulation ring (3) is aligned with the axis of the heating ring (2), the number of spiral turns of the heating ring (2) is 8 to 10, and the number of spiral turns of the insulation ring (3) is 4 to 6.

3. The heating device of the high-efficiency and energy-saving elbow hot push machine according to claim 1 is characterized in that: The electrical connector (8) comprises a first strap (801) welded to the second connecting rod (5) and a second strap (802) welded to the third connecting rod (6), the lower surface of the first strap (801) abutting against the upper surface of the second strap (802), and the lower surface of the first strap (801) and the upper surface of the second strap (802) are bolted together.

4. The heating device of the high-efficiency and energy-saving elbow hot push machine according to claim 1 is characterized in that: A support assembly (9) is fixedly provided below the insulating support plate (1), and the support assembly (9) comprises a support (901), a linear module (902) fixedly provided on the upper surface of the support (901), and a rotating support (903) and an electric push rod (904) fixedly provided on the upper surface of the slider end of the linear module (902) in the left-right direction; the upper and lower support plates of the rotating support (903) are respectively fixedly connected to the lower surface of the insulating support plate (1) and the upper surface of the slider end of the linear module (902), and the top of the push rod end of the electric push rod (904) is hinged to the lower surface of the insulating support plate (1).

5. The heating device of the high-efficiency and energy-saving elbow hot push machine according to claim 1 is characterized in that: The first connecting rod (4), the second connecting rod (5), the third connecting rod (6) and the fourth connecting rod (7) are all perpendicular to the front side wall of the insulating support plate (1); the front side wall of the insulating support plate (1) is fixedly provided with four insulating and heat-insulating sleeves (10); the first connecting rod (4), the second connecting rod (5), the third connecting rod (6) and the fourth connecting rod (7) are respectively fixedly passed through the four insulating and heat-insulating sleeves (10).

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