Resistance type heating furnace

Abstract

The utility model discloses a resistance-type heating furnace, and relates to the technical field of heating furnaces. The heating furnace comprises a heating furnace body and a revolving door rotationally connected with the front side of the heating furnace body, and further comprises mounting side doors, a door frame and a door frame, wherein the mounting side doors are slidably clamped on the left and right sides of the heating furnace body; the mounting rear door is slidably clamped to the rear side of the heating furnace body, high-temperature-resistant plates are mounted on the inner sides of the mounting side door and the mounting rear door, the placing table plate is arranged in the heating furnace body, the pulling-open assembly is arranged in the heating furnace body, and the limiting assembly is arranged on the inner side of the mounting side door. According to the heating furnace, a worker can rotate and open the rotating door by holding the handle, when the rotating door is opened and closed, the rotating door can pull the rotating arm to enable the placing table plate to slide back and forth in the linear direction of the sliding groove body, and then materials placed at the upper end of the placing table plate can be moved out of the heating furnace body along with sliding of the placing table plate. And manual clamping is facilitated, and use is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating furnaces, in particular to a resistance heating furnace. Background Art

[0002] A heating furnace that uses resistance wire or resistance belt as a heating element is called a resistance furnace. A resistance furnace is an industrial furnace that uses electric current to heat the electric heating element or heating medium in the furnace, thereby heating the workpiece or material. Resistance furnaces are used in the machinery industry for heating before metal forging, heating for metal heat treatment, brazing, powder metallurgy sintering, glass ceramic baking and annealing, melting low-melting-point metals, drying of sand molds and paint films, etc. Heat treatment furnaces are a general term for industrial furnaces used to perform various metal heat treatments on metal workpieces.

[0003] However, after a resistance furnace is used for a long time, the internal heating wire will inevitably be damaged and need to be repaired and replaced. However, the heating wire is inside the furnace body, and it is troublesome for maintenance personnel to inspect the inside, and the maintenance is inconvenient. In addition, when taking the heated materials, it is necessary to manually use a clamping device to reach into the furnace body for clamping and taking out, and the operation process is also inconvenient. Therefore, we propose a resistance heating furnace to solve this problem. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a resistance heating furnace, which can effectively solve the problems of the prior art.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a resistance heating furnace, comprising a heating furnace body, an inner wall of the heating furnace body evenly provided with a heat preservation layer, and a revolving door rotatably connected to the front side of the heating furnace body, and also comprising:

[0007] Install side doors, which are slidably connected to the left and right sides of the heating furnace body;

[0008] The rear door is installed and slidably connected to the rear side of the heating furnace body, and the inner sides of the side door and the rear door are both installed with high temperature resistant plates;

[0009] A platen is placed inside the heating furnace body;

[0010] The pull-out assembly is arranged inside the heating furnace body and is used to facilitate taking out the heating product from the heating furnace body;

[0011] The limiting component is arranged on the inner side of the installation side door and is used for limiting the installation side door and the installation rear door.

[0012] Furthermore, a placement groove is linearly distributed on the inner side of the high temperature resistant plate, and a heating wire is fixed inside the placement groove.

[0013] Furthermore, the limiting component includes a sliding column 1 and a sliding pin hole 2. The sliding column 1 is rectangularly distributed and fixed on the inner side of the rear door, the sliding pin hole 2 is rectangularly distributed and opened on the rear side of the insulation layer, and the sliding column 1 can be slidably inserted into the interior of the sliding pin hole 2.

[0014] Furthermore, two sliding columns are symmetrically distributed and fixed on the inner side of the side door, and one sliding pin hole is symmetrically distributed and penetrated through the side of the rear door, and the two sliding columns can be slidably inserted into the inside of the one sliding pin hole.

[0015] Furthermore, threaded holes are symmetrically distributed on the left and right sides of the heating furnace body, and locking plates are symmetrically fixed on the outer sides of the side doors. Locking screws are passed through the locking plates, and the locking screws can be threadedly connected to the inside of the threaded holes.

[0016] Furthermore, the pulling assembly includes a placing table, a revolving door, a handle, a sliding groove body, a connecting shaft, and a rotating arm. The sliding groove body is symmetrically distributed and opened at the lower end of the inner wall of the heating furnace body. The placing table is slidably clamped in the interior of the sliding groove body. The connecting shaft is fixed to the left side of the upper end surface of the placing table. The rotating arm is rotatably sleeved on the outside of the connecting shaft, and the other end of the connecting shaft is fixedly connected to the inner lower end of the revolving door. The handle is fixed at the central position of the outer side of the revolving door.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model allows manual operation by rotating the revolving door open by holding the handle. When the revolving door is opened and closed, the revolving door can slide the placement table forward and backward along the linear direction of the sliding groove by pulling the rotating arm, so that the material placed on the upper end of the placement table can be moved out of the heating furnace body as the placement table slides, which is convenient for manual clamping and more convenient to use.

[0019] 2. According to the utility model, the handles on the left and right sides can be manually pulled to drive the installed side door to slide out from the inside of the sliding pin hole 2 along with the sliding column 1, and then the handle on the rear side can be pulled to drive the installed rear door to slide from the inside of the sliding pin hole 2 along with the sliding column 1. The provided sliding column 1 and sliding column 2 can make the disassembly and installation of the side door and the installation of the rear door smoother. At the same time, when the sliding column 1 is inserted into the inside of the sliding pin hole 2, the installation of the rear door can be limited, and the installation rear door cannot be opened. When performing maintenance, the heating wire and the high-temperature resistant plate can be quickly moved out of the outside of the heating furnace body, which makes maintenance from the outside more convenient and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a top view schematic diagram of the resistance gas heating furnace of the utility model;

[0022] Figure 2 This is an explosion diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the rear side of the utility model;

[0024] Figure 4 This is a top view schematic diagram of the utility model after the rear door is installed.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Heating furnace body; 2. Placing table; 3. Revolving door; 4. Handle; 5. Sliding trough; 6. Connecting shaft; 7. Rotating arm; 8. Installing side door; 9. High temperature resistant plate; 10. Placing trough body; 11. Sliding column one; 12. Threaded hole; 13. Sliding pin hole one; 14. Installing rear door; 15. Insulation layer; 16. Locking plate; 17. Sliding column two; 18. Locking screw; 19. Sliding pin hole two. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] See also Figure 1-4 As shown, the utility model is a resistance heating furnace, comprising a heating furnace body 1, an inner wall of the heating furnace body 1 evenly provided with a heat preservation layer 15, and a revolving door 3 rotatably connected to the front side of the heating furnace body 1, and also comprising:

[0029] The side doors 8 are installed and slidably connected to the left and right sides of the heating furnace body 1, and the rear door 14 is installed and slidably connected to the rear side of the heating furnace body 1, and the inner sides of the side doors 8 and the rear door 14 are both installed with high temperature resistant plates 9, and the inner sides of the high temperature resistant plates 9 are linearly distributed with placement slots 10, and the inside of the placement slots 10 is fixed with heating wires. The side doors 8 and the rear door 14 can be convenient for extracting the heating wires to the outside of the furnace body during subsequent maintenance, so as to facilitate maintenance outside. The high temperature resistant plates 9 can withstand the heat emitted by the heating wires, so that the generated heat is isolated from the inside of the heating furnace body 1;

[0030] A placing platen 2 is arranged inside the heating furnace body 1, and the placing platen 2 can support the required heating material so as to facilitate subsequent rapid removal;

[0031] The pull-out assembly is arranged inside the heating furnace body 1, and is used for facilitating the taking out of the heating product from the inside of the heating furnace body 1. The pull-out assembly comprises a placing table 2, a revolving door 3, a handle 4, a sliding slot 5, a connecting shaft 6, and a rotating arm 7. The sliding slot 5 is symmetrically distributed and opened at the lower end of the inner wall of the heating furnace body 1. The placing table 2 is slidably clamped inside the sliding slot 5, and the connecting shaft 6 is fixed to the left side of the upper end surface of the placing table 2. The rotating arm 7 is rotatably sleeved on the outside of the connecting shaft 6, and the other end of the connecting shaft 6 is fixedly connected to the inner lower end of the revolving door 3. The handle 4 is fixed at the central position of the outer side of the revolving door 3. When taking out the material, the revolving door 3 can be rotated and opened by holding the handle 4 manually. When the revolving door 3 is opened and closed, the revolving door 3 can slide the placing table 2 forward and backward along the linear direction of the sliding slot 5 by pulling the rotating arm 7, and then the material placed on the upper end of the placing table 2 can be moved out of the outside of the heating furnace body 1 as the placing table 2 slides, which is convenient for manual clamping and more convenient to use.

[0032] A limiting component is arranged on the inner side of the installation side door 8, and is used to limit the installation side door 8 and the installation rear door 14. The limiting component includes a sliding column 11 and a sliding pin hole 19. The sliding column 11 is rectangularly distributed and fixed on the inner side of the installation rear door 14. The sliding pin hole 19 is rectangularly distributed and opened on the rear side of the insulation layer 15, and the sliding column 11 can be slidably inserted in the interior of the sliding pin hole 19. The inner side of the installation side door 8 is symmetrically distributed and fixed with sliding columns 17. The side of the installation rear door 14 is symmetrically distributed and penetrated with sliding pin holes 13, and the sliding column 17 can be slidably inserted in the interior of the sliding pin hole 13. When performing maintenance, the handles 4 on the left and right sides can be pulled to drive the installation side door 8 to slide out of the interior of the sliding pin hole 19 along with the sliding column 11, and then, the handle 4 on the rear side can be pulled to drive the installation rear door 14 to slide from the interior of the sliding pin hole 19 along with the sliding column 11. The sliding column 11 and the sliding pin hole 19 are arranged. The movable column 2 17 can make the disassembly and installation of the side door 8 and the installation of the rear door 14 smoother. At the same time, when the sliding column 11 is inserted into the interior of the sliding pin hole 2 19, the installation of the rear door 14 can be limited. The installation of the rear door 14 cannot be opened. When repairing, the heating wire and the high-temperature resistant plate 9 can be quickly moved out of the outside of the heating furnace body 1. It is more convenient to repair from the outside and the maintenance efficiency is higher. The left and right sides of the heating furnace body 1 are symmetrically distributed with threaded holes 12, and the outer side of the installation side door 8 is symmetrically fixed with locking plates 16. The interior of the locking plate 16 is penetrated by a locking screw 18, and the locking screw 18 can be threadedly connected to the inside of the threaded hole 12. After the inspection is completed, the installation of the rear door 14 and the installation of the side door 8 can be installed in reverse order. The maintenance personnel can pass the locking screw 18 through the locking plate 16, and then thread the locking screw 18 into the inside of the threaded hole 12 and tighten it, so that the installation of the side door 8 and the installation of the rear door 14 can be completely limited.

[0033] Working principle: First, place the heating furnace body 1 horizontally, and the inner wall of the heating furnace body 1 is evenly distributed with an insulation layer 15, which can prevent heat flow loss. The front side of the heating furnace body 1 is rotatably connected with a revolving door 3, which is convenient for operators to take and put materials;

[0034] When taking out the heated materials, the manual operation can be performed by rotating the revolving door 3 to open it by holding the handle 4. When the revolving door 3 is opened and closed, the revolving door 3 can slide the placement plate 2 forward and backward along the linear direction of the sliding groove 5 by pulling the rotating arm 7, so that the materials placed on the upper end of the placement plate 2 can be moved out of the heating furnace body 1 as the placement plate 2 slides, which is convenient for manual clamping and more convenient to use.

[0035] During maintenance, the handles 4 on the left and right sides can be pulled to drive the installed side door 8 to slide out from the inside of the sliding pin hole 2 19 along with the sliding column 11, and then, the handle 4 on the rear side can be pulled to drive the installed rear door 14 to slide from the inside of the sliding pin hole 2 19 along with the sliding column 11. The provided sliding column 11 and sliding column 2 17 can make the removal and installation of the side door 8 and the installation of the rear door 14 smoother. At the same time, when the sliding column 11 is inserted into the inside of the sliding pin hole 2 19, the installation of the rear door 14 can be limited, and the installation rear door 14 cannot be opened. When performing maintenance, the heating wire and the high-temperature resistant plate 9 can be quickly moved out of the outside of the heating furnace body 1, which makes maintenance from the outside more convenient and more efficient.

[0036] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A resistance heating furnace, comprising a heating furnace body (1), an inner wall of the heating furnace body (1) evenly provided with a heat-insulating layer (15), and a revolving door (3) rotatably connected to the front side of the heating furnace body (1), characterized in that: Also includes: Install side doors (8) that are slidably engaged with the left and right sides of the heating furnace body (1); A rear door (14) is installed, which is slidably connected to the rear side of the heating furnace body (1), and a high temperature resistant plate (9) is installed on the inner sides of the side door (8) and the rear door (14); A placement plate (2) is arranged inside the heating furnace body (1); A pull-out assembly is arranged inside the heating furnace body (1) and is used to facilitate taking out the heated product from the heating furnace body (1); The limiting component is arranged on the inner side of the installation side door (8) and is used to limit the installation side door (8) and the installation rear door (14).

2. A resistance heating furnace according to claim 1, characterized in that: The inner side of the high temperature resistant plate (9) is provided with placement grooves (10) distributed linearly, and a heating wire is fixed inside the placement grooves (10).

3. The resistance heating furnace according to claim 1, characterized in that: The limiting component comprises a sliding column (11) and a sliding pin hole (19). The sliding column (11) is rectangularly distributed and fixed on the inner side of the rear door (14) for installation. The sliding pin hole (19) is rectangularly distributed and opened on the rear side of the insulation layer (15). The sliding column (11) can be slidably inserted into the interior of the sliding pin hole (19).

4. A resistance heating furnace according to claim 3, characterized in that: The inner side of the side door (8) is symmetrically distributed with two sliding columns (17) fixed thereto, and the side of the rear door (14) is symmetrically distributed with one sliding pin hole (13) extending therethrough, and the two sliding columns (17) can be slidably inserted into the inside of the one sliding pin hole (13).

5. The resistance heating furnace according to claim 4, characterized in that: The left and right sides of the heating furnace body (1) are symmetrically provided with threaded holes (12); the outer side of the side door (8) is symmetrically fixed with a locking plate (16); the locking plate (16) is provided with a locking screw (18) inside, and the locking screw (18) can be threadedly connected to the inside of the threaded hole (12).

6. The resistance heating furnace according to claim 1, characterized in that: The pull-opening assembly comprises a placement table (2), a revolving door (3), a handle (4), a sliding groove body (5), a connecting shaft (6), and a rotating arm (7); the sliding groove body (5) is symmetrically distributed and opened at the lower end of the inner wall of the heating furnace body (1); the placement table (2) is slidably engaged in the interior of the sliding groove body (5); the connecting shaft (6) is fixed to the left side of the upper end surface of the placement table (2); the rotating arm (7) is rotatably sleeved on the outside of the connecting shaft (6); and the other end of the connecting shaft (6) is fixedly connected to the inner lower end of the revolving door (3); and the handle (4) is fixed at the central position of the outer side of the revolving door (3).

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