Double-layer heating roller hearth type electric heating furnace

Abstract

The utility model provides a double-layer heating roller hearth type electric heating furnace, and belongs to the technical field of electric heating furnaces. The double-layer heating roller bottom type electric heating furnace comprises a furnace body, a first transmission roller, a first heating wire assembly, a material receiving tray, a second transmission roller, a second heating wire assembly, a baffle and a circulation opening. The material receiving tray is installed in the furnace body and located below the multiple first transmission rollers, so that the material receiving tray can collect and store disintegrating slag generated by the first transmission rollers and oxide skin and material pieces of workpieces placed on the first transmission rollers; therefore, the second transmission roller located below the first transmission roller, the second heating assembly and the workpiece placed on the second transmission roller are prevented from being damaged, and the product quality is improved. The baffle is installed in the furnace body and located above the second heating wire assembly, so that the second heating wire assembly is protected by the baffle, the second heating wire assembly is prevented from being damaged, and the product quality is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric heating furnace technical field, concretely relates to a double -deck heating roller bottom formula electric heating furnace. BACKGROUND

[0002] In the related art, when the workpiece is heat treated, the workpiece is usually placed in the electric heating furnace, and the workpiece is heated by the heating wire in the electric heating furnace.

[0003] The prior art (authorization announcement number: CN207891252U) discloses a tempered glass heating furnace with a double-layer structure, which comprises a heating furnace body, a resistance wire layer, glass, a motor and a heat preservation layer, one side of the heating furnace body is provided with an upper inlet and a lower inlet, the other side of the heating furnace body is symmetrically provided with an upper outlet and a lower outlet, two groups of rollers are arranged in the heating furnace body, one side of the roller is connected with the heating furnace body through a second shaft sleeve, the other side of the roller is connected with the roller transmission shaft through a first shaft sleeve, one end of the roller transmission shaft is connected with the other side of the heating furnace body through a third shaft sleeve, a third belt pulley is arranged on the roller transmission shaft, each group of rollers is connected through a second belt, and a second belt pulley with the same position is arranged on the roller transmission shaft close to the upper outlet, a motor is arranged on one side of the heating furnace body, a resistance wire layer is arranged in the heating furnace body, and the heat preservation layer and the inner wall are welded.

[0004] In the prior art, when the workpiece is heat treated, the slag generated by the roller is easy to fall on the resistance wire layer, thereby causing the damage of the resistance wire layer, and further reducing the quality of the product. INVENTION CONTENTS

[0005] In order to solve the problem that in the prior art, when the workpiece is heat treated, the slag generated by the roller is easy to fall on the resistance wire layer, thereby causing the damage of the resistance wire layer, and further reducing the quality of the product, the utility model provides a double-layer heating roller bottom formula electric heating furnace, which installs the baffle in the furnace body, and makes the baffle above the second heating wire assembly, so as to realize the protection of the second heating wire assembly by the baffle, thereby avoiding the damage of the second heating wire assembly, and further improving the quality of the product. Its specific technical scheme is:

[0006] The utility model provides a double -deck heating roller bottom formula electric heating furnace, double -deck heating roller bottom formula electric heating furnace includes: furnace body, first transmission roller, first heating wire subassembly, material receiving tray, second transmission roller, second heating wire subassembly, baffle and flow through mouth, furnace body is hollow cavity, first transmission roller is ceramic body, a plurality of first transmission roller passes through the both side walls of furnace body in proper order, and a plurality of first transmission roller is rotatably connected with furnace body, first heating wire subassembly is located in furnace body, and the both inner walls of furnace body are connected respectively with the both ends of first heating wire subassembly, and a plurality of first heating wire subassembly is located above a plurality of first transmission roller, material receiving tray is the hollow cavity with the opening in the top, material receiving tray is located in furnace body, and material receiving tray is located below a plurality of first transmission roller, and material receiving tray is connected with the inner wall of furnace body, second transmission roller is ceramic body, a plurality of second transmission roller passes through the both side walls of furnace body, a plurality of second transmission roller is rotatably connected with furnace body, and a plurality of second transmission roller is located below material receiving tray, second heating wire subassembly is located in furnace body, and the both inner walls of furnace body are connected respectively with the both ends of second heating wire subassembly, and a plurality of second heating wire subassembly is located below a plurality of second transmission roller, baffle is V -shaped, baffle is located in furnace body, and the both inner walls of furnace body are connected respectively with the both ends of a plurality of baffles, a plurality of baffles are located above a plurality of second heating wire subassembly, and a plurality of baffles are located below a plurality of second transmission roller, flow through mouth is strip -shaped, and a plurality of flow through mouths are arranged in the baffle.

[0007] In addition, the double -deck heating roller bottom formula electric heating furnace of the above -mentioned technical scheme provided by the utility model can also have the following additional technical features:

[0008] In the above technical scheme, the double -deck heating roller bottom formula electric heating furnace further comprises: a first connecting seat, a first supporting plate, and a first clamping piece; the first connecting seat is L-shaped, a plurality of first connecting seats are fixed on the two inner walls of the furnace body, and the plurality of first connecting seats are located on the two sides of the material receiving tray; a plurality of first supporting plates are connected with the end portions of the plurality of first connecting seats, and the first supporting plates are perpendicular to the first connecting seats; the first clamping piece is U-shaped, two first clamping pieces are connected with the two sides of the material receiving tray, and the plurality of first supporting plates are embedded in the first clamping piece.

[0009] In the above technical scheme, the double -deck heating roller bottom formula electric heating furnace further comprises: a first reinforcing plate, a first chamfer, and a first refractory brick; the first reinforcing plate is connected with the first connecting seat and the first supporting plate; the first chamfer is arranged on the top of the first supporting plate; a plurality of first refractory bricks are fixed on the inner wall of the furnace body, and the first connecting seat is fixed on the first refractory brick.

[0010] In the above technical scheme, the double -deck heating roller bottom formula electric heating furnace further comprises: a plurality of partitions; the plurality of partitions are embedded in the material receiving tray, the plurality of partitions are connected with the inner wall of the material receiving tray, and the plurality of partitions are located below the plurality of first transmission rollers, respectively.

[0011] In the technical scheme, the double-layer heating roller bottom type electric heating furnace further comprises a second connecting seat, a second supporting plate and a second clamping piece; the second connecting seat is L-shaped, a plurality of second connecting seats are fixed on the two inner walls of the furnace body respectively, and the plurality of second connecting seats are located on the two sides of the baffle; a plurality of second supporting plates are connected with the end portions of the plurality of second connecting seats respectively, and the second supporting plates are perpendicular to the second connecting seats; the second clamping pieces are U-shaped, two second clamping pieces are connected with the two sides of the baffle respectively, and the plurality of second supporting plates are embedded in the second clamping pieces.

[0012] In the technical scheme, the double-layer heating roller bottom type electric heating furnace further comprises a second reinforcing plate, a second chamfer and a second refractory brick; the second reinforcing plate is connected with the second connecting seat and the second supporting plate simultaneously; the second chamfer is arranged on the top of the second supporting plate; a plurality of second refractory bricks are fixed on the inner wall of the furnace body, and the second connecting seat is fixed on the second refractory bricks.

[0013] In the technical scheme, the first heating wire assembly comprises a first supporting roller, a first sleeve and a first heating wire body; the first supporting roller passes through the two inner walls of the furnace body in sequence; the first sleeve is a ceramic body, two first sleeves are sleeved on the two ends of the first supporting roller, and the two first sleeves are embedded in the furnace body; the first heating wire body is arranged on the outside of the first supporting roller, the two ends of the first heating wire body pass through the furnace body, and the first heating wire body is electrically connected with the power supply.

[0014] In the technical scheme, the second heating wire assembly comprises a second supporting roller, a second sleeve and a second heating wire body; the second supporting roller passes through the two inner walls of the furnace body in sequence; the second sleeve is a ceramic body, two second sleeves are sleeved on the two ends of the second supporting roller, and the two second sleeves are embedded in the furnace body; the second heating wire body is arranged on the outside of the second supporting roller, the two ends of the second heating wire body pass through the furnace body, and the second heating wire body is electrically connected with the power supply.

[0015] Compared with the prior art, the double-layer heating roller bottom type electric heating furnace has the beneficial effects that:

[0016] 1. The application discloses a furnace body, a plurality of first transmission rollers are rotatably connected with the furnace body, a plurality of second transmission rollers are rotatably connected with the furnace body, and the second transmission rollers are located below the first transmission rollers, so that the first transmission rollers and the second transmission rollers can drive different workpieces to move simultaneously in the furnace body; meanwhile, a first heating wire assembly and a second heating wire assembly are installed in the furnace body, the first heating wire assembly is located above the first transmission rollers, and the second heating wire assembly is located below the second transmission rollers, so that the first heating wire assembly and the second heating wire assembly can heat the workpieces placed on the first transmission rollers and the second transmission rollers respectively, thereby improving the processing efficiency of the furnace body; a receiving tray is installed in the furnace body and located below the first transmission rollers, so that the receiving tray can collect and store the slag generated by the first transmission rollers and the scales of the workpieces placed on the first transmission rollers, thereby avoiding damage to the second transmission rollers, the second heating assembly and the workpieces placed on the second transmission rollers located below the first transmission rollers, and improving the quality of products; a baffle is installed in the furnace body and located above the second heating wire assembly, so that the baffle can protect the second heating wire assembly, thereby avoiding damage to the second heating wire assembly and further improving the quality of products; when the first heating wire assembly is powered and generates heat, the receiving tray also becomes a high-temperature heat source after being heated, so that the receiving tray radiates heat outward, thereby heating the lower end surface of the workpieces placed on the first transmission rollers and the upper end surface of the workpieces placed on the second transmission rollers, and further improving the effect of heat treatment processing of the workpieces; when the second heating wire assembly is powered and generates heat, the baffle also becomes a high-temperature heat source after being heated, so that the baffle radiates heat outward, thereby heating the lower end surface of the workpieces placed on the second transmission rollers, and further improving the effect of heat treatment processing of the workpieces.

[0017] 2. Two first clamping pieces in a U shape are connected with the two sides of the receiving tray respectively, and a first supporting plate is embedded in the first clamping piece, so that the first supporting plate supports the receiving tray through the first clamping piece, which can improve the stability of the receiving tray and facilitate quick taking of the receiving tray, thereby improving the use experience of products.

[0018] 3. The first reinforcing plate is connected with the first connecting seat and the first supporting plate simultaneously, so as to improve the connection strength of the first connecting seat and the first supporting plate, thereby improving the stability of the first supporting plate and further improving the stability of the first supporting plate in supporting the receiving tray; the first chamfer is arranged at the top of the first supporting plate, so as to facilitate embedding of the first supporting plate in the first clamping piece, thereby improving the use experience of products.

[0019] 4. The overall strength of the receiving tray is improved by embedding the plurality of partitions in the receiving tray and connecting the plurality of partitions with the inner wall of the receiving tray; at the same time, the plurality of partitions is connected with the lower part of the plurality of first transmission rollers, so that the plurality of partitions divides the receiving tray into a plurality of areas, thereby facilitating heat accumulation and improving the effect of heat treatment of the workpiece.

[0020] 5. The two U-shaped second clamping members are connected with the two sides of the baffle respectively, and the second supporting plate is embedded in the second clamping member, so that the second supporting plate supports the baffle through the second clamping member, which not only improves the stability of the baffle, but also facilitates quick taking of the baffle, thereby improving the use experience of the product.

[0021] 6. The second reinforcing plate is connected with the second connecting seat and the second supporting plate at the same time, so as to improve the connection strength of the second connecting seat and the second supporting plate, thereby improving the stability of the second supporting plate, and further improving the stability of the second supporting plate supporting the receiving tray; the second chamfer is arranged at the top of the second supporting plate, so as to embed the second supporting plate in the second clamping member, thereby improving the use experience of the product.

[0022] 7. The first heating wire body is wound outside the first supporting roller, the two ends of the first heating wire body pass through the furnace body, and the first heating wire body is electrically connected with the power supply, so as to realize that the first supporting roller supports the first heating wire body, thereby improving the stability of the first heating wire body, and at the same time, the power supply can supply power to the first heating wire body, thereby realizing that the first heating wire body generates heat and heats the workpiece.

[0023] 8. The second heating wire body is wound outside the second supporting roller, the two ends of the second heating wire body pass through the furnace body, and the second heating wire body is electrically connected with the power supply, so as to realize that the second supporting roller supports the second heating wire body, thereby improving the stability of the second heating wire body, and at the same time, the power supply can supply power to the second heating wire body, thereby realizing that the second heating wire body generates heat and heats the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of a double-layer heating roller bottom type electric heating furnace of the utility model;

[0025] Figure 2 It is a perspective view of a double-layer heating roller bottom type electric heating furnace of the utility model; Figure 1 It is a partial enlarged view of A of the double-layer heating roller bottom type electric heating furnace;

[0026] Figure 3 It is a partial enlarged view of B of the double-layer heating roller bottom type electric heating furnace; Figure 1 It is a partial enlarged view of B of the double-layer heating roller bottom type electric heating furnace;

[0027] Figure 4 It is a perspective view of a receiving tray and a first connecting seat of the utility model.

[0028] Figure 5 is a perspective view of the first connecting seat of the material receiving tray of the utility model;

[0029] Among them, Figures 1 to 5 The correspondence between the reference signs and the component names in the drawings is as follows:

[0030] 10 furnace body, 11 first transmission roller, 12 first heating wire assembly, 121 first supporting roller, 122 first sleeve, 123 first heating wire body, 13 material receiving tray, 14 second transmission roller, 15 second heating wire assembly, 151 second supporting roller, 152 second sleeve, 153 second heating wire body, 16 baffle, 17 flow-through opening, 18 first connecting seat, 19 first supporting plate, 20 first clamping piece, 21 first reinforcing plate, 22 first chamfer, 23 first refractory brick, 24 partition plate, 25 second connecting seat, 26 second supporting plate, 27 second clamping piece, 28 second reinforcing plate, 29 second chamfer, 30 second refractory brick. DETAILED DESCRIPTION

[0031] The utility model is further illustrated below in combination with specific implementation examples and drawings. Figures 1 to 5 The utility model is further illustrated below in combination with specific implementation examples and drawings.

[0032] A double-layer heating roller bottom type electric heating furnace, comprising a furnace body, a first transmission roller, a first heating wire assembly, a second transmission roller and a second heating wire assembly, Figures 1 to 5As shown, the double-layer heating roller bottom type electric heating furnace comprises a furnace body 10, a first transmission roller 11, a first heating wire assembly 12, a material receiving tray 13, a second transmission roller 14, a second heating wire assembly 15, a baffle 16 and a flow-through opening 17; the furnace body 10 is a hollow cavity; the first transmission roller 11 is a ceramic body, a plurality of first transmission rollers 11 pass through the two side walls of the furnace body 10 in turn, and the plurality of first transmission rollers 11 are rotatably connected with the furnace body 10; the first heating wire assembly 12 is located in the furnace body 10, the two ends of the first heating wire assembly 12 are respectively connected with the two inner walls of the furnace body 10, and a plurality of first heating wire assemblies 12 are located above the plurality of first transmission rollers 11; the material receiving tray 13 is a hollow cavity with an opening at the top, the material receiving tray 13 is located in the furnace body 10, and the material receiving tray 13 is located below the plurality of first transmission rollers 11 and is connected with the inner wall of the furnace body 10; the second transmission roller 14 is a ceramic body, a plurality of second transmission rollers 14 pass through the two side walls of the furnace body 10 in turn, the plurality of second transmission rollers 14 are rotatably connected with the furnace body 10, and the plurality of second transmission rollers 14 are located below the material receiving tray 13; the second heating wire assembly 15 is located in the furnace body 10, the two ends of the second heating wire assembly 15 are respectively connected with the two inner walls of the furnace body 10, and a plurality of second heating wire assemblies 15 are located below the plurality of second transmission rollers 14; the baffle 16 is V-shaped, the baffle 16 is located in the furnace body 10, the two ends of the plurality of baffles 16 are respectively connected with the two inner walls of the furnace body 10, the plurality of baffles 16 are located above the plurality of second heating wire assemblies 15, and the plurality of baffles 16 are located below the plurality of second transmission rollers 14; the flow-through opening 17 is long strip-shaped, and a plurality of flow-through openings 17 are arranged in the baffle 16.

[0033] The furnace body 10 is arranged as a hollow cavity, a plurality of first transmission rollers 11 pass through the two side walls of the furnace body 10 in sequence, and the plurality of first transmission rollers 11 are rotationally connected with the furnace body 10, so that the furnace body 10 has a containing space, thereby supporting the plurality of first transmission rollers 11 and enabling the first transmission rollers 11 to rotate in the furnace body 10, and when the workpiece is placed on the plurality of first transmission rollers 11, the plurality of first transmission rollers 11 are rotated simultaneously to drive the workpiece to move; the two ends of the first heating wire assembly 12 are connected with the two inner walls of the furnace body 10 respectively, and the plurality of first heating wire assemblies 12 are located above the plurality of first transmission rollers 11, so that the furnace body 10 can support the first heating wire assembly 12, thereby enabling the first heating wire assembly 12 to heat the workpiece placed on the first transmission roller 11, and further enabling the workpiece to be heat treated. The receiving tray 13 is arranged as a hollow cavity with an opening at the top, and the receiving tray 13 is located below the plurality of first transmission rollers 11 and connected with the inner wall of the furnace body 10, so that the furnace body 10 supports the receiving tray 13, thereby enabling the receiving tray 13 to collect and store the oxide skin and pieces generated by the workpiece when heated, and simultaneously, the receiving tray 13 can also collect and store the slag generated by the first transmission roller 11. The plurality of second transmission rollers 14 pass through the two side walls of the furnace body 10 in sequence, and the plurality of second transmission rollers 14 are rotationally connected with the furnace body 10, so that the furnace body 10 supports the plurality of second transmission rollers 14, thereby enabling the second transmission rollers 14 to rotate in the furnace body 10, and when the workpiece is placed on the plurality of second transmission rollers 14, the plurality of second transmission rollers 14 are rotated simultaneously to drive the workpiece to move; the two ends of the second heating wire assembly 15 are connected with the two inner walls of the furnace body 10 respectively, and the plurality of second heating wire assemblies 15 are located below the plurality of second transmission rollers 14, so that the furnace body 10 supports the second heating wire assembly 15, thereby enabling the second heating wire assembly 15 to heat the workpiece placed on the second transmission roller 14, and further enabling the workpiece to be heat treated. The two ends of the baffle 16 are connected with the two inner walls of the furnace body 10 respectively, the plurality of baffles 16 are located above the plurality of second heating wire assemblies 15, and the plurality of baffles 16 are located below the plurality of second transmission rollers 14, so that the baffle 16 protects the second heating wire assembly 15, thereby avoiding the oxide skin and pieces generated by the workpiece on the second transmission roller 14 and the slag generated by the second transmission roller 14 from damaging the second heating wire assembly 15, so as to improve the quality of the product; the plurality of long strip-shaped flow-through openings 17 are arranged through the baffle 16, so that the heat generated by the second heating wire assembly 15 can heat the workpiece through the flow-through openings 17, thereby avoiding the baffle 16 from blocking the heat, so as to improve the heating efficiency of the product.

[0034] With the above structure, by rotatingly connecting the plurality of first transmission rollers 11 with the furnace body 10, rotatingly connecting the plurality of second transmission rollers 14 with the furnace body 10, and locating the second transmission rollers 14 below the first transmission rollers 11, the first transmission rollers 11 and the second transmission rollers 14 can drive different workpieces to move, so that the plurality of workpieces can move in the furnace body 10 at the same time; at the same time, by installing the first heating wire assembly 12 and the second heating wire assembly 15 in the furnace body 10, locating the first heating wire assembly 12 above the first transmission rollers 11, and locating the second heating wire assembly 15 below the second transmission rollers 14, the first heating wire assembly 12 and the second heating wire assembly 15 can heat the workpieces placed on the first transmission rollers 11 and the workpieces placed on the second transmission rollers 14, respectively, so as to improve the processing efficiency of the furnace body 10. By installing the material receiving tray 13 in the furnace body 10 and locating the material receiving tray 13 below the plurality of first transmission rollers 11, the material receiving tray 13 can collect and store the slag generated by the first transmission rollers 11 and the scales and scraps of the workpieces placed on the first transmission rollers 11, so as to avoid damage to the second transmission rollers 14, the second heating assembly, and the workpieces placed on the second transmission rollers 14 below the first transmission rollers 11, thereby improving the quality of the products. By installing the baffle 16 in the furnace body 10 and locating the baffle 16 above the second heating wire assembly 15, the baffle 16 can protect the second heating wire assembly 15, so as to avoid damage to the second heating wire assembly 15 and further improve the quality of the products. When the first heating wire assembly 12 is powered and emits heat, the material receiving tray 13 will also become a high-temperature heat source after being heated, so the material receiving tray 13 will also radiate heat outward, thereby heating the lower end surface of the workpieces placed on the first transmission rollers 11 and the upper end surface of the workpieces placed on the second transmission rollers 14, and further making the workpieces heated more uniformly, so as to improve the effect of heat treatment processing of the workpieces. When the second heating wire assembly 15 is powered and emits heat, the baffle 16 will also become a high-temperature heat source after being heated, so the baffle 16 will also radiate heat outward, thereby heating the lower end surface of the workpieces placed on the second transmission rollers 14, so as to make the workpieces heated and processed uniformly, and further improve the effect of heat treatment processing of the workpieces.

[0035] In the embodiment of the utility model, such as Figures 1 to 5As shown in the drawings, the double-layer heating roller bottom type electric heating furnace further comprises: a first connecting seat 18, a first supporting plate 19 and a first clamping piece 20; the first connecting seat 18 is L-shaped, a plurality of first connecting seats 18 are fixed on the two inner walls of the furnace body 10 respectively, and the plurality of first connecting seats 18 are located on the two sides of the material receiving tray 13; a plurality of first supporting plates 19 are connected with the end portions of the plurality of first connecting seats 18 respectively, and the first supporting plate 19 is perpendicular to the first connecting seat 18; the first clamping piece 20 is U-shaped, two first clamping pieces 20 are connected with the two sides of the material receiving tray 13 respectively, and the plurality of first supporting plates 19 are embedded in the first clamping piece.

[0036] By fixing the plurality of first connecting seats 18 on the two inner walls of the furnace body 10 respectively, the plurality of first connecting seats 18 are located on the two sides of the material receiving tray 13, and the end portions of the first supporting plate 19 are connected with the first connecting seat 18, so that the furnace body 10 supports the plurality of first connecting seats 18, thereby supporting the first supporting plate 19 by the first connecting seat 18; by connecting the two U-shaped first clamping pieces 20 with the two sides of the material receiving tray 13 respectively, and embedding the first supporting plate 19 in the first clamping piece, the first supporting plate 19 supports the material receiving tray 13 through the first clamping piece, which not only improves the stability of the material receiving tray 13, but also enables the material receiving tray 13 to be quickly taken, thereby improving the use experience of the product.

[0037] In the embodiment of the utility model, as shown in the drawings, Figures 1 to 5 The double-layer heating roller bottom type electric heating furnace further comprises: a first reinforcing plate 21, a first chamfer 22 and a first refractory brick 23; the first reinforcing plate 21 is connected with the first connecting seat 18 and the first supporting plate 19 simultaneously; the first chamfer 22 is arranged on the top of the first supporting plate 19; a plurality of first refractory bricks 23 are fixed on the inner wall of the furnace body 10, and the first connecting seat 18 is fixed on the first refractory brick 23.

[0038] By connecting the first reinforcing plate 21 with the first connecting seat 18 and the first supporting plate 19 simultaneously, the connection strength of the first connecting seat 18 and the first supporting plate 19 is improved, thereby improving the stability of the first supporting plate 19, and further improving the stability of the first supporting plate 19 supporting the material receiving tray 13; by arranging the first chamfer 22 on the top of the first supporting plate 19, the first supporting plate 19 is embedded in the first clamping piece 20, thereby improving the use experience of the product. By fixing the refractory brick on the inner wall of the furnace body 10 and fixing the first connecting seat 18 on the first refractory brick 23, the furnace body 10 supports the first connecting seat 18 through the first refractory brick 23, thereby avoiding heat transfer between the furnace body 10 and the first connecting seat 18, and further improving the use experience of the product.

[0039] In the embodiment of the utility model, as shown in the drawings, Figures 1 to 5As shown in the drawings, the double-layer heating roller bottom type electric heating furnace further comprises: a plurality of partitions 24 embedded in the receiving tray 13, the plurality of partitions 24 are connected with the inner wall of the receiving tray 13, and the plurality of partitions 24 are respectively located below the plurality of first transmission rollers 11.

[0040] By embedding the plurality of partitions 24 in the receiving tray 13 and connecting the plurality of partitions 24 with the inner wall of the receiving tray 13, the overall strength of the receiving tray 13 is improved; at the same time, by locating the plurality of partitions 24 below the plurality of first transmission rollers 11, the receiving tray 13 is divided into a plurality of areas by the plurality of partitions 24, so that the heat is easily gathered, and the effect of heat treatment of the workpiece is improved.

[0041] In the embodiment of the utility model, as shown in the drawings, Figures 1 to 5 As shown in the drawings, the double-layer heating roller bottom type electric heating furnace further comprises: a second connecting seat 25, a second supporting plate 26 and a second clamping piece 27; the second connecting seat 25 is L-shaped, a plurality of second connecting seats 25 are respectively fixed on the two inner walls of the furnace body 10, and the plurality of second connecting seats 25 are located on the two sides of the baffle 16; a plurality of second supporting plates 26 are respectively connected with the end portions of the plurality of second connecting seats 25, and the second supporting plate 26 is perpendicular to the second connecting seat 25; the second clamping piece 27 is U-shaped, two second clamping pieces 27 are respectively connected with the two sides of the baffle 16, and the plurality of second supporting plates 26 are embedded in the second clamping piece.

[0042] By fixing the plurality of second connecting seats 25 on the two inner walls of the furnace body 10, locating the plurality of second connecting seats 25 on the two sides of the baffle 16, and connecting the second supporting plate 26 with the end portion of the second connecting seat 25, the furnace body 10 supports the plurality of second connecting seats 25, so that the second connecting seat 25 supports the second supporting plate 26; by connecting the two U-shaped second clamping pieces 27 with the two sides of the baffle 16 respectively, and embedding the second supporting plate 26 in the second clamping piece, the second supporting plate 26 supports the baffle 16 through the second clamping piece, which not only improves the stability of the baffle 16, but also facilitates quick taking of the baffle 16, thereby improving the use experience of the product.

[0043] In the embodiment of the utility model, as shown in the drawings, Figures 1 to 5 As shown in the drawings, the double-layer heating roller bottom type electric heating furnace further comprises: a second reinforcing plate 28, a second chamfer 29 and a second refractory brick 30; the second reinforcing plate 28 is connected with the second connecting seat 25 and the second supporting plate 26 at the same time; the second chamfer 29 is arranged at the top of the second supporting plate 26; a plurality of second refractory bricks 30 are fixed on the inner wall of the furnace body 10, and the second connecting seat 25 is fixed on the second refractory brick 30.

[0044] The second reinforcing plate 28 is connected with the second connecting seat 25 and the second supporting plate 26 at the same time, so that the connecting strength of the second connecting seat 25 and the second supporting plate 26 is improved, the stability of the second supporting plate 26 is improved, and the stability of the second supporting plate 26 in supporting the material tray 13 is improved; the second chamfer 29 is arranged at the top of the second supporting plate 26, so that the second supporting plate 26 is embedded in the second clamping piece 27, and the use experience of the product is improved. The firebrick is fixed on the inner wall of the furnace body 10, and the second connecting seat 25 is fixed on the second firebrick 30, so that the furnace body 10 supports the second connecting seat 25 through the second firebrick 30, heat transfer between the furnace body 10 and the second connecting seat 25 is avoided, and the use experience of the product is improved.

[0045] In the embodiment of the utility model, as shown in Figures 1 to 5 The first heating wire assembly 12 comprises a first supporting roller 121, a first sleeve 122 and a first heating wire body 123; the first supporting roller 121 passes through two inner walls of the furnace body 10 in sequence; the first sleeve 122 is a ceramic body, two first sleeves 122 are sleeved on two ends of the first supporting roller 121, and the two first sleeves 122 are embedded in the furnace body 10; the first heating wire body 123 is arranged on the outside of the first supporting roller 121, two ends of the first heating wire body 123 pass through the furnace body 10, and the first heating wire body 123 is electrically connected with the power supply.

[0046] The first supporting roller 121 passes through two inner walls of the furnace body 10 in sequence, two first sleeves 122 are sleeved on two ends of the first supporting roller 121, and the two first sleeves 122 are embedded in the furnace body 10, so that the furnace body 10 supports the first supporting roller 121 through the two first sleeves 122, and the stability of the first supporting roller 121 is improved; the first heating wire body 123 is arranged on the outside of the first supporting roller 121, two ends of the first heating wire body 123 pass through the furnace body 10, and the first heating wire body 123 is electrically connected with the power supply, so that the first supporting roller 121 supports the first heating wire body 123, the stability of the first heating wire body 123 is improved, and the power supply supplies power to the first heating wire body 123, so that the first heating wire body 123 generates heat and heats the workpiece.

[0047] In the embodiment of the utility model, as shown in Figures 1 to 5As shown, the second heating wire assembly 15 comprises a second roller 151, a second sleeve 152 and a second heating wire body 153; the second roller 151 passes through two inner walls of the furnace body 10 in sequence; the second sleeve 152 is a ceramic body, two second sleeves 152 are sleeved on two ends of the second roller 151, and the two second sleeves 152 are embedded in the furnace body 10; the second heating wire body 153 is arranged on the outer side of the second roller 151, two ends of the second heating wire body 153 pass through the furnace body 10, and the second heating wire body 153 is electrically connected with the power supply.

[0048] By passing the second roller 151 through the two inner walls of the furnace body 10 in sequence, sleeving the two second sleeves 152 on the two ends of the second roller 151, and embedding the two second sleeves 152 in the furnace body 10, the furnace body 10 supports the second roller 151 through the two second sleeves 152, thereby improving the stability of the second roller 151; by arranging the second heating wire body 153 on the outer side of the second roller 151, passing two ends of the second heating wire body 153 through the furnace body 10, and electrically connecting the second heating wire body 153 with the power supply, the second roller 151 supports the second heating wire body 153, thereby improving the stability of the second heating wire body 153, and the power supply can also supply power to the second heating wire body 153, thereby making the second heating wire body 153 heat and heat the workpiece.

[0049] Specifically, the third refractory bricks are attached to the inner wall of the furnace body 10, thereby improving the heat insulation of the furnace body.

[0050] In the description of the present application, the term "a plurality of" refers to two or more, unless otherwise specified, and the terms "upper", "lower", etc. indicate the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the present application; the terms "connection", "installation", "fixation" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In the description of the utility model, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the utility model, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The above only is the preferred embodiment of the utility model has, and does not use for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be contained in the protection scope of the utility model.

Claims

1. A double-layer heating roller hearth electric heating furnace, characterized in that, The double-layer heating roller hearth electric heating furnace includes: Furnace body, wherein the furnace body is a hollow cavity; The first drive roller is a ceramic body, and multiple first drive rollers pass through the two side walls of the furnace body in sequence, and the multiple first drive rollers are rotatably connected to the furnace body; A first heating wire assembly is located inside the furnace body, with its two ends connected to the two inner walls of the furnace body, and multiple first heating wire assemblies located above multiple first transmission rollers. The receiving tray is a hollow cavity with an opening at the top. The receiving tray is located inside the furnace body and below a plurality of first drive rollers. The receiving tray is connected to the inner wall of the furnace body. The second drive roller is a ceramic body. Multiple second drive rollers pass through the two side walls of the furnace body in sequence. The multiple second drive rollers are rotatably connected to the furnace body and are located below the receiving tray. The second heating wire assembly is located inside the furnace body, with its two ends connected to the two inner walls of the furnace body, and multiple second heating wire assemblies located below multiple second drive rollers; The baffle is V-shaped and located inside the furnace body. The two ends of the baffle are respectively connected to the two inner walls of the furnace body. The baffle is located above the multiple second heating wire assemblies and below the multiple second transmission rollers. The flow port is elongated and multiple flow ports are disposed through the baffle.

2. The double-layer heating roller hearth electric heating furnace according to claim 1, characterized in that, The double-layer heating roller hearth electric heating furnace also includes: The first connecting seat is L-shaped, and multiple first connecting seats are respectively fixed on the two inner walls of the furnace body, and multiple first connecting seats are located on both sides of the receiving tray; A first support plate, wherein multiple first support plates are respectively connected to the ends of multiple first connecting seats, and the first support plates are perpendicular to the first connecting seats; The first snap-fit ​​component is U-shaped, and two first snap-fit ​​components are respectively connected to the two sides of the receiving tray, and multiple first support plates are embedded in the first snap-fit ​​component.

3. A double-layer heating roller bottom electric heating furnace according to claim 2, characterized in that, The double-layer heating roller hearth electric heating furnace also includes: The first reinforcing plate is connected to both the first connecting seat and the first supporting plate. A first chamfer is provided at the top of the first support plate; The first refractory brick, a plurality of the first refractory bricks are fixed on the inner wall of the furnace body, and the first connecting seat is fixed on the first refractory brick.

4. A double-layer heating roller hearth electric heating furnace according to claim 3, characterized in that, The double-layer heating roller hearth electric heating furnace also includes: The partitions are embedded in the receiving tray, the partitions are connected to the inner wall of the receiving tray, and the partitions are respectively located below the first drive rollers.

5. A double-layer heating roller hearth electric heating furnace according to claim 1, characterized in that, The double-layer heating roller hearth electric heating furnace also includes: The second connecting seat is L-shaped, and multiple second connecting seats are respectively fixed on the two inner walls of the furnace body, and multiple second connecting seats are located on both sides of the baffle. The second support plate, wherein multiple second support plates are respectively connected to the ends of multiple second connecting seats, and the second support plates are perpendicular to the second connecting seats; The second snap-fit ​​component is U-shaped, and two second snap-fit ​​components are respectively connected to the two sides of the baffle, and multiple second support plates are embedded in the second snap-fit ​​components.

6. A double-layer heating roller hearth electric heating furnace according to claim 5, characterized in that, The double-layer heating roller hearth electric heating furnace also includes: The second reinforcing plate is connected to both the second connecting seat and the second support plate. The second chamfer is located at the top of the second support plate; The second refractory brick, a plurality of the second refractory bricks are fixed on the inner wall of the furnace body, and the second connecting seat is fixed on the second refractory brick.

7. A double-layer heating roller hearth electric heating furnace according to claim 1, characterized in that, The first heating wire assembly includes: The first idler roller passes sequentially through the two inner walls of the furnace body; The first sleeve is a ceramic body, and two first sleeves are fitted onto both ends of the first idler roller and embedded in the furnace body. The first heating wire body is wound around the outside of the first idler roller, with both ends of the first heating wire body passing through the furnace body, and the first heating wire body is electrically connected to the power supply.

8. A double-layer heating roller bottom electric heating furnace according to claim 7, characterized in that, The second heating wire assembly includes: The second roller passes sequentially through the two inner walls of the furnace body; The second sleeve is a ceramic body. Two second sleeves are fitted onto both ends of the second idler roller and embedded in the furnace body. The second heating wire body is wound around the outside of the second idler roller, with both ends of the second heating wire body passing through the furnace body, and the second heating wire body is electrically connected to the power supply.

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