Multi-station heat treatment furnace

Abstract

The utility model discloses a multi-station heat treatment furnace which comprises a bottom plate, a heat treatment furnace body is arranged in the middle of the upper portion of the bottom plate, a furnace door is hinged to the front end of the heat treatment furnace body, and a left heat insulation cover and a right heat insulation cover are arranged on the two sides of the heat treatment furnace body respectively. The supporting plates are provided with inserting blocks corresponding to the inserting grooves, so that the distance between the supporting plates can be adjusted according to the size of a machined workpiece, the utilization rate of the internal space of the heat treatment furnace body can be improved, and the practicability of the equipment is improved; the left heat insulation cover and the right heat insulation cover are arranged outside the heat treatment furnace body for heat preservation, heat loss can be reduced, an electric motor is driven to rotate to drive a supporting plate to rotate, internal workpieces do uniform-speed circular motion along a rotating rod, the workpieces are heated more evenly in the furnace body, and the heat treatment efficiency is improved. And the production quality of the equipment can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of heat treatment furnace equipment, specifically a multi-station heat treatment furnace. Background Technology

[0002] A heat treatment furnace refers to an electric or fuel-fired furnace used for heating furnace charge for heat treatment. Commonly used heat treatment furnaces include box-type resistance furnaces, pit-type resistance furnaces, gas carburizing furnaces, and salt bath furnaces. Continuous furnaces are typically used, where workpieces are continuously loaded through the charging door, pass through the furnace chamber, and are continuously discharged through the discharge door. A common method for in-furnace conveying is to place the workpieces on heat-resistant steel guide rails and move them using walking beams or pushers.

[0003] In the existing technology, the workpiece is directly heated in a heat treatment furnace, which may result in uneven heating of the workpiece, which is not conducive to improving the production quality of the equipment. In addition, the workpiece is usually put into the heat treatment furnace by conveyor belt. When the workpiece is small, there will be a lot of wasted space inside the heat treatment furnace, which is not conducive to improving the production efficiency of the equipment.

[0004] Therefore, this utility model provides a multi-station heat treatment furnace to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-station heat treatment furnace. By setting an adjustable-height support plate, the utilization rate of the internal space of the heat treatment furnace body is improved. By driving an electric motor to rotate the support plate, the workpiece is driven to make uniform circular motion along the rotating rod, thus solving the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-station heat treatment furnace, comprising a base plate, a furnace body disposed at the upper center of the base plate, a furnace door hinged to the front end of the furnace body, a left heat insulation cover and a right heat insulation cover respectively disposed on both sides of the furnace body, a mounting plate slidably connected to the bottom of the inner wall of the furnace body, a rotating rod rotatably connected to the mounting plate, a plurality of evenly distributed slots being provided on the rotating rod, a support plate slidably connected to the rotating rod; an electric motor fixedly connected inside the mounting plate, a drive gear fixedly connected to the output end of the electric motor, a driven gear meshing with one end of the drive gear, and the driven gear fixedly connected to the rotating rod.

[0007] Preferably, the support plate has four sets of limiting grooves symmetrically formed, and each set of limiting grooves is slidably connected to an insert block. One end of the insert block is inserted into the slot, and the other end of the insert block is fixedly connected to a sliding rod.

[0008] Preferably, the slide rod is slidably connected to the sleeve, the sleeve is fixedly connected to the support plate, a spring is fixedly connected to one end of the inner wall of the sleeve, the other end of the spring is fixedly connected to the slide rod, and the support plate is slidably connected to the inner wall of the heat treatment furnace body.

[0009] Preferably, the top of the inner wall of the heat treatment furnace body is provided with a limiting groove with the same diameter as the rotating rod, and the rotating rod is rotatably connected to the heat treatment furnace body.

[0010] Preferably, the base plate has two sets of sliding grooves. A left slider is slidably connected to one set of sliding grooves, and a left heat insulation cover is fixedly connected to the side of the left slider near the heat treatment furnace body. A right slider is slidably connected to the other set of sliding grooves, and a right heat insulation cover is fixedly connected to the side of the right slider near the heat treatment furnace body.

[0011] Preferably, the left and right heat insulation covers can completely enclose the heat treatment furnace body, and the bottom of the heat treatment furnace body is fixedly connected to four sets of support legs, the bottom of which are fixedly connected to the base plate.

[0012] Preferably, a servo motor is fixedly connected to one end of the base plate, a reciprocating lead screw is fixedly connected to the output end of the servo motor, the other end of the reciprocating lead screw is rotatably connected to the slide groove, the outer wall of the reciprocating lead screw is threadedly connected to the left slider and the right slider, and the threads inside the left slider and the right slider are symmetrically arranged.

[0013] Preferably, the bottom end of the mounting plate is fixedly connected to several sets of rollers, the rollers are slidably connected to a slide rail, and the slide rail is located at the bottom end of the inner wall of the heat treatment furnace body.

[0014] Beneficial effects

[0015] This utility model provides a multi-station heat treatment furnace. Compared with the prior art, it has the following advantages:

[0016] (1) By opening slots on the rotating rod and setting corresponding inserts on the support plate, the distance between the support plates can be adjusted according to the size of the workpiece being processed, which is beneficial to improving the utilization rate of the internal space of the heat treatment furnace body and increasing the practicality of the equipment.

[0017] (2) By setting up a left heat insulation cover and a right heat insulation cover on the outside of the heat treatment furnace body to keep it warm, it is beneficial to reduce heat loss. By driving the electric motor to rotate and driving the support plate to rotate, the internal workpieces make uniform circular motion along the rotating rod, so that the workpieces are heated more evenly in the furnace body, which is beneficial to improving the production quality of this equipment. Attached Figure Description

[0018] Figure 1This is a perspective view of the external structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 3 This is a utility model Figure 2 Enlarged schematic diagram of the structure of region A in the middle;

[0021] Figure 4 This is a utility model Figure 2 Enlarged schematic diagram of the structure of region B in the middle.

[0022] In the diagram: 1. Base plate; 2. Servo motor; 3. Reciprocating lead screw; 4. Slide groove; 5. Left slider; 6. Left heat insulation cover; 7. Right slider; 8. Right heat insulation cover; 9. Heat treatment furnace body; 10. Furnace door; 11. Support leg; 12. Support plate; 13. Rotating rod; 14. Slot; 15. Limiting slot; 16. Insert block; 17. Sleeve; 18. Slide rod; 19. Spring; 20. Mounting plate; 21. Electric motor; 22. Driven gear; 23. Driven gear; 24. Slide rail; 25. Roller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see Figure 1-3 A multi-station heat treatment furnace includes a base plate 1, a furnace body 9 disposed at the upper center of the base plate 1, a furnace door 10 hinged to the front end of the furnace body 9, a left heat insulation cover 6 and a right heat insulation cover 8 respectively disposed on both sides of the furnace body 9, a mounting plate 20 slidably connected to the bottom of the inner wall of the furnace body 9, a rotating rod 13 rotatably connected to the mounting plate 20, a plurality of evenly distributed slots 14 opened on the rotating rod 13, and a support plate 12 slidably connected to the rotating rod 13; the furnace door 10 is sealed to the furnace body 9, and when the furnace door 20 is opened, the mounting plate 20 can be removed from the furnace body 9. By setting a plurality of slots 14 on the surface of the rotating rod 13, the distance between the support plates 12 can be adjusted according to the size of the workpiece being processed, which is beneficial to improving the utilization rate of the internal space of the furnace body 9 and increasing the practicality of the equipment.

[0026] An electric motor 21 is fixedly connected inside the mounting plate 20. A drive gear 23 is fixedly connected to the output end of the electric motor 21. One end of the drive gear 23 is meshed with a driven gear 22. The driven gear 22 is fixedly connected to the rotating rod 13. Both the driven gear 22 and the drive gear 23 are rotatably connected inside the mounting plate 20. The mounting plate 20 is made of heat-insulating material so that the electric motor 21 can also operate when the heat treatment furnace body 9 is working. By driving the electric motor 21 to rotate, the drive gear 23 meshes with the driven gear 22 to rotate, thereby driving the rotating rod 13 to rotate.

[0027] The support plate 12 is symmetrically provided with four sets of limiting grooves 15. Each set of limiting grooves 15 is slidably connected with a plug 16. One end of the plug 16 is inserted into the slot 14, and the other end of the plug 16 is fixedly connected to a sliding rod 18. The four sets of limiting grooves 15 are symmetrically arranged to improve the stability of the support plate 12 and the rotating rod 13.

[0028] The slide rod 18 is slidably connected to the sleeve 17, and the sleeve 17 is fixedly connected to the support plate 12. A spring 19 is fixedly connected to one end of the inner wall of the sleeve 17, and the other end of the spring 19 is fixedly connected to the slide rod 18. The support plate 12 is slidably connected to the inner wall of the heat treatment furnace body 9. By simultaneously pulling four sets of insert blocks 16, the insert blocks 16 are moved out of the slot 14, and the height of the support plate 12 is adjusted. The diameter of the through hole in the middle of the support plate 12 is larger than the diameter of the rotating rod 13. By installing the spring 19 inside the sleeve 17, when there is no external force, the spring 19 drives the insert blocks 16 to insert into the slot 14 to fix the support plate 12.

[0029] In this embodiment, by simultaneously pulling four sets of insert blocks 16, the insert blocks 16 are moved out of the slots 14, thereby adjusting the height of the support plate 12. The diameter of the through hole in the middle of the support plate 12 is larger than the diameter of the rotating rod 13. By installing a spring 19 inside the sleeve 17, when there is no external force, the spring 19 drives the insert blocks 16 to insert into the slots 14 to fix the support plate 12. By opening four sets of symmetrically arranged limiting grooves 15, the stability of the support plate 12 and the rotating rod 13 can be improved. This allows the distance between the support plates 12 to be adjusted according to the size of the workpiece being processed, which is beneficial to improving the utilization rate of the internal space of the heat treatment furnace body 9 and increasing the practicality of the equipment.

[0030] Example 2:

[0031] Please see Figure 1-4This embodiment provides a technical solution based on Embodiment 1: a limiting groove with the same diameter as the rotating rod 13 is provided at the top of the inner wall of the heat treatment furnace body 9, and the rotating rod 13 is rotatably connected to the heat treatment furnace body 9; by providing the limiting groove, the top of the rotating rod 13 is rotatably connected to the heat treatment furnace body 9, which helps to improve the stability of the rotating rod 13. By setting the rotating rod 13 to drive the support plate 12 to rotate, the internal workpiece moves in a uniform circular motion along the rotating rod 13 when the equipment is working, so that the workpiece is heated more evenly in the furnace body;

[0032] Two sets of sliding grooves 4 are provided on the base plate 1. A left slider 5 is slidably connected to one set of sliding grooves 4. A left heat insulation cover 6 is fixedly connected to the side of the left slider 5 near the heat treatment furnace body 9. A right slider 7 is slidably connected to the other set of sliding grooves 4. A right heat insulation cover 8 is fixedly connected to the side of the right slider 7 near the heat treatment furnace body 9. By setting the left heat insulation cover 6 and the right heat insulation cover 8 on the outside of the heat treatment furnace body 9, it is beneficial to keep the heat treatment furnace body 9 warm, reduce heat loss, reduce energy waste, and improve the working environment of the staff.

[0033] The left heat insulation cover 6 and the right heat insulation cover 8 can completely enclose the heat treatment furnace body 9. The bottom of the heat treatment furnace body 9 is fixedly connected to four sets of support legs 11, and the bottom of the support legs 11 is fixedly connected to the base plate 1. The support legs 11 facilitate the fixation of the heat treatment furnace body 9.

[0034] A servo motor 2 is fixedly connected to one end of the base plate 1. A reciprocating screw 3 is fixedly connected to the output end of the servo motor 2. The other end of the reciprocating screw 3 is rotatably connected to the slide groove 4. The outer wall of the reciprocating screw 3 is threadedly connected to the left slider 5 and the right slider 7. The threads inside the left slider 5 and the right slider 7 are symmetrically arranged. By driving the servo motor 2 to rotate, the reciprocating screw 3 is driven to rotate, causing the left slider 5 and the right slider 7 to move closer to or away from the heat treatment furnace body 9.

[0035] The bottom end of the mounting plate 20 is fixedly connected to several sets of rollers 25. The rollers 25 are slidably connected to the slide rail 24. The slide rail 24 is opened at the bottom end of the inner wall of the heat treatment furnace body 9. By installing rollers 25 at the bottom end of the mounting plate 20 and opening the slide rail 24 corresponding to the rollers 25 on the heat treatment furnace body 9, the mounting plate 20 can be easily moved out of the heat treatment furnace body 9, which is convenient for the staff to place and pick up the workpiece.

[0036] In this embodiment, by setting a left heat insulation cover 6 and a right heat insulation cover 8 on the outside of the heat treatment furnace body 9, it is beneficial to keep the heat treatment furnace body 9 warm, reduce heat loss, reduce energy waste, and improve the working environment of the staff. By installing rollers 25 at the bottom of the mounting plate 20 and opening slide rails 24 on the heat treatment furnace body 9 corresponding to the rollers 25, the mounting plate 20 can be easily moved out of the heat treatment furnace body 9, making it convenient for the staff to pick up the workpiece. By setting a rotating rod 13 to drive the support plate 12 to rotate, the internal workpiece moves in a uniform circular motion along the rotating rod 13 when the equipment is working, so that the workpiece is heated more evenly in the furnace.

[0037] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-station heat treatment furnace, comprising a bottom plate (1), a heat treatment furnace body (9) is arranged above the middle part of the bottom plate (1), a furnace door (10) is hinged to the front end of the heat treatment furnace body (9), a left heat insulation cover (6) and a right heat insulation cover (8) are arranged on the left side and the right side of the heat treatment furnace body (9) respectively, characterized in that: The inner wall bottom end of the heat treatment furnace body (9) is slidably connected with a mounting plate (20), the mounting plate (20) is rotatably connected with a rotating rod (13), a plurality of groups of uniformly distributed insertion slots (14) are formed in the rotating rod (13), and a supporting plate (12) is slidably connected with the rotating rod (13). The mounting plate (20) is fixedly connected with an electric motor (21), the output end of the electric motor (21) is fixedly connected with a driving gear (23), one end of the driving gear (23) is meshedly connected with a driven gear (22), and the driven gear (22) is fixedly connected with the rotating rod (13).

2. A multi-station heat treatment furnace as claimed in claim 1, characterized in that: Four groups of limiting grooves (15) are symmetrically formed in the supporting plate (12), each group of the limiting grooves (15) is slidably connected with an insertion block (16), one end of the insertion block (16) is inserted into the insertion slot (14), and the other end of the insertion block (16) is fixedly connected with a sliding rod (18).

3. A multi-station heat treatment furnace as claimed in claim 2, characterized in that: The sliding rod (18) is slidably connected with a sleeve (17), the sleeve (17) is fixedly connected with the supporting plate (12), one end of the inner wall of the sleeve (17) is fixedly connected with a spring (19), the other end of the spring (19) is fixedly connected with the sliding rod (18), and the supporting plate (12) is slidably connected with the inner wall of the heat treatment furnace body (9).

4. The multi-station heat treatment furnace of claim 1, wherein: The inner wall top end of the heat treatment furnace body (9) is provided with a limiting sliding groove with the same diameter as the rotating rod (13), and the rotating rod (13) is rotatably connected with the heat treatment furnace body (9).

5. The multi-station heat treatment furnace of claim 1, wherein: Two groups of sliding grooves (4) are formed in the bottom plate (1), one group of the sliding grooves (4) is slidably connected with a left sliding block (5), the side, close to the heat treatment furnace body (9), of the left sliding block (5) is fixedly connected with a left heat insulation cover (6), the other group of the sliding grooves (4) is slidably connected with a right sliding block (7), and the side, close to the heat treatment furnace body (9), of the right sliding block (7) is fixedly connected with a right heat insulation cover (8).

6. A multi-station heat treatment furnace as claimed in claim 5, characterized in that: The left heat insulation cover (6) and the right heat insulation cover (8) can completely wrap the heat treatment furnace body (9), the bottom end of the heat treatment furnace body (9) is fixedly connected with four groups of supporting legs (11), and the bottom end of the supporting leg (11) is fixedly connected with the bottom plate (1).

7. The multi-station heat treatment furnace of claim 1, wherein: One end of the bottom plate (1) is fixedly connected with a servo motor (2), the output end of the servo motor (2) is fixedly connected with a reciprocating screw rod (3), the other end of the reciprocating screw rod (3) is rotatably connected with the sliding groove (4), the outer wall of the reciprocating screw rod (3) is threadedly connected with the left sliding block (5) and the right sliding block (7), and the threads in the left sliding block (5) and the right sliding block (7) are symmetrically arranged.

8. The multi-station heat treatment furnace of claim 1, wherein: The bottom end of the mounting plate (20) is fixedly connected with a plurality of groups of rollers (25), the rollers (25) are slidably connected with sliding rails (24), and the sliding rails (24) are formed in the inner wall bottom end of the heat treatment furnace body (9).

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