Multi-station heat treatment furnace

Abstract

The utility model discloses a multi-station heat treatment furnace which comprises a shell, a trolley is arranged on the inner wall of the bottom of the shell, a first supporting plate is fixedly connected to the upper surface of the trolley, a groove is formed in the first supporting plate, a fixing block is fixedly connected to the front surface of the first supporting plate, and the fixing block is fixedly connected to the bottom of the shell. The device comprises a shell, an air outlet pipeline is fixedly connected to the interior of the shell, an air extracting pump is fixedly connected to the right surface of the air outlet pipeline, a first connecting pipeline and a placing plate locking assembly are fixedly connected to the right surface of the air extracting pump, and the placing plate locking assembly comprises a spring, a locking switch, a connecting block and a limiting block. The placing plate is fixed through the placing plate locking assembly, heat treatment can be conducted on multiple workpieces, the workpiece heat treatment efficiency is improved, the space utilization degree in the heat treatment furnace is high, the placing position of the placing plate can be adjusted according to the sizes of the workpieces, and the heat treatment furnace is higher in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment furnaces, in particular to a multi-station heat treatment furnace. Background Art

[0002] A multi-station heat treatment furnace is a device specially used for heat treatment of materials or workpieces. It has multiple independent stations and can perform various heat treatment processes at different stations, such as quenching, tempering, annealing, carburizing, etc. Common heat treatment furnaces include box-type resistance furnaces, pit-type resistance furnaces, gas carburizing furnaces, and salt bath furnaces. In the automotive manufacturing industry, multi-station heat treatment furnaces can be used to process various parts, such as engine parts, transmission system parts, etc., to improve their mechanical properties and durability. In the field of metal processing, it can heat treat various metal products to improve their hardness, toughness and other properties. Different stations can be specially set and adjusted according to different workpieces and process requirements to meet diverse production needs.

[0003] At present, there is often only a single cavity in the heat treatment furnace. When processing certain workpieces, only one workpiece can be placed in the furnace cavity for heat treatment at a time. The number of workpieces that can be heat treated at a time is small, and the space utilization rate in the heat treatment furnace is low, which leads to low heat treatment efficiency of the device. After searching, it was found that the technical solution provided by the utility model with application number also has the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a multi-station heat treatment furnace. A trolley is used to push multi-layer placement plates into the heat treatment furnace, and a placement plate locking assembly fixes the placement plates. Multiple workpieces can be heat treated, thereby improving the efficiency of heat treatment of workpieces. The space utilization rate in the heat treatment furnace is high, and the placement position of the placement plates can be adjusted according to the size of the workpiece, making the heat treatment furnace more applicable.

[0005] To achieve the above-mentioned purpose, the utility model also provides a multi-station heat treatment furnace, comprising: a shell, a trolley is arranged on the bottom inner wall of the shell, a first support plate is fixedly connected to the upper surface of the trolley, a groove is arranged inside the first support plate, a fixed block is fixedly connected to the front surface of the first support plate, an air outlet pipe is fixedly connected to the inside of the shell, an air pump is fixedly connected to the right surface of the air outlet pipe, a first connecting pipe is fixedly connected to the right surface of the air pump, a placement plate locking assembly, the placement plate locking assembly includes a spring, a locking switch, a connecting block, and a limit block, the upper surface of the fixing block is fixedly connected to the spring, the upper end of the spring is fixedly connected to the locking switch, the lower surface of the locking is fixedly connected to the connecting block, and the lower surface of the connecting block is fixedly connected to the limit block. The inner surface of the groove is slidably connected to a placement plate, and a limit hole is arranged inside the placement plate.

[0006] According to the multi-station heat treatment furnace, the vacuum pump is electrically connected to an external power supply, and the number of the grooves is multiple. By setting multiple groups of grooves, multiple groups of placement plates can be placed, thereby increasing the usable space range inside the heat treatment furnace. The space utilization rate inside the heat treatment furnace is high, and the heat treatment effect of the workpiece is improved.

[0007] According to the multi-station heat treatment furnace, the lower surface of the placement plate is fixedly connected to a heat-conducting rod, the right end of the first connecting pipe is fixedly connected to an air box, and the right surface of the air box is fixedly connected to an air intake pipe.

[0008] According to the multi-station heat treatment furnace, an air intake pipe is fixedly connected to the right surface of the air box, and an electromagnetic valve is arranged inside the air intake pipe. The waste heat generated in the heat treatment furnace can be reused through the electromagnetic valve to realize heat circulation.

[0009] According to the multi-station heat treatment furnace, the upper surface of the placement plate is slidably connected to the fixed block, and the side surface of the limit block is slidably connected to the placement plate. The limit block limits the placement plate to make the device more stable.

[0010] According to the multi-station heat treatment furnace, the lower end of the air outlet pipe is connected to the shell, and the right end of the first connecting pipe is connected to the air box to realize the internal heat circulation of the heat treatment furnace.

[0011] According to the multi-station heat treatment furnace, the lower surface of the placement plate is fixedly connected with a heat-conducting rod, and the number of the heat-conducting rods is multiple. The heat-conducting rods are arranged on the lower surface of the placement plate, which increases the heat treatment efficiency and achieves a good heat treatment effect.

[0012] According to the multi-station heat treatment furnace, a door is hingedly connected to the front surface of the shell.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the overall structure of a multi-station heat treatment furnace of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a multi-station heat treatment furnace of the utility model;

[0017] Figure 3 It is a partial structural schematic diagram of a multi-station heat treatment furnace of the utility model;

[0018] Figure 4 The utility model is a cross-sectional view of a fixing block of a multi-station heat treatment furnace.

[0019] Legend:

[0020] 1. Shell; 2. Door; 3. Trolley; 4. First support plate; 5. Groove; 6. Fixing block; 7. Spring; 8. Locking switch; 9. Connecting block; 10. Limiting block; 11. Placement plate; 12. Limiting hole; 13. Heat conducting rod; 14. Air outlet pipe; 15. Vacuum pump; 16. First connecting pipe; 17. Air box; 18. Air inlet pipe. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4The utility model embodiment is a multi-station heat treatment furnace, comprising: a shell 1, a trolley 3 is arranged on the bottom inner wall of the shell 1, and a first support plate 4 is fixedly connected to the upper surface of the trolley 3, and a multi-layer placement plate 11 can be placed in the heat treatment furnace through the trolley 3, which increases the use of the heat treatment furnace. The first support plate 4 is provided with a groove 5 inside, and multiple groups of placement plates 11 can be placed through the arrangement of multiple groups of grooves 5. The heat treatment furnace can perform heat treatment on multiple workpieces, and the space utilization rate in the heat treatment furnace is high, which improves the heat treatment efficiency of the workpieces. The front surface of the first support plate 4 is fixedly connected to a fixing block 6, and the inside of the shell 1 is fixedly connected to an exhaust pipe Channel 14, the right surface of the air outlet pipe 14 is fixedly connected with an air pump 15, the right surface of the air pump 15 is fixedly connected with a first connecting pipe 16, the first connecting pipe 16 extracts the excess air inside the shell 1 into the air box 17, which can continue to be used through the control of the solenoid valve to achieve thermal circulation, and place the plate locking assembly. The placing plate locking assembly includes a spring 7, a locking switch 8, a connecting block 9, and a limit block 10. The upper surface of the fixed block 6 is fixedly connected to the spring 7, the upper end of the spring 7 is fixedly connected to the locking switch 8, the lower surface of the locking switch 8 is fixedly connected to the connecting block 9, and the lower surface of the connecting block 9 is fixedly connected to the limit block 10. The inner surface of the groove 5 is slidably connected with a placement plate 11, and a limiting hole 12 is arranged inside the placement plate 11. The vacuum pump 15 is electrically connected to an external power supply. There are multiple grooves 5. The right end of the first connecting pipe 16 is fixedly connected with an air box 17, and the right surface of the air box 17 is fixedly connected with an air intake pipe 18. The right surface of the air box 17 is fixedly connected with an air intake pipe 18, and an electromagnetic valve is arranged inside the air intake pipe 18, through which the waste heat generated in the heat treatment furnace can be repeatedly discharged. In use, heat circulation is realized, the upper surface of the placement plate 11 is slidably connected to the fixed block 6, the side surface of the limit block 10 is slidably connected to the placement plate 11, the lower end of the air outlet pipe 14 is connected to the shell 1, the right end of the first connecting pipe 16 is connected to the air box 17, the lower surface of the placement plate 11 is fixedly connected with a heat-conducting rod 13, the number of the heat-conducting rods 13 is multiple, and the heat-conducting rods 13 are arranged on the lower surface of the placement plate 11, which increases the heat treatment efficiency and has a good heat treatment effect. The front surface of the shell 1 is hinged with a door 2.

[0023] Working principle: when multiple workpieces need to be heat treated, first adjust the placement position of the placement plate 11 according to the size of the workpieces, press the spring 7 to drive the locking switch 8, the connecting block 9, and the limit block 10 to move upward, place the placement plate 11 in the groove 5, release the pressing spring 7, the limit block 10 limits the placement plate 11, place the workpiece that needs to be heat treated on the placement plate 11, close the door 2, heat treat the workpiece, start the first connecting pipe 16, and the residual heat in the device enters the air box 17 through the exhaust pipe 14 and the vacuum pump 15. The heat in the air box 17 can be discharged into the shell 1 through the solenoid valve to form a heat cycle, and the multi-layer placement plate 11 is pushed into the heat treatment furnace by the trolley 3. The placement plate locking assembly fixes the placement plate 11, and multiple workpieces can be heat treated, which improves the efficiency of heat treatment of workpieces. The space utilization rate in the heat treatment furnace is high, and the placement position of the placement plate 11 can be adjusted according to the size of the workpiece, and the heat treatment furnace is more applicable.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A multi-station heat treatment furnace, characterized in that: include: A shell (1), a trolley (3) is arranged on the bottom inner wall of the shell (1), a first support plate (4) is fixedly connected to the upper surface of the trolley (3), a groove (5) is arranged inside the first support plate (4), a fixing block (6) is fixedly connected to the front surface of the first support plate (4), an air outlet pipe (14) is fixedly connected to the inside of the shell (1), an air pump (15) is fixedly connected to the right surface of the air outlet pipe (14), and a first connecting pipe (16) is fixedly connected to the right surface of the air pump (15); A placement plate locking assembly, the placement plate locking assembly comprising a spring (7), a locking switch (8), a connecting block (9), and a limit block (10); the upper surface of the fixing block (6) is fixedly connected to the spring (7); the upper end of the spring (7) is fixedly connected to the locking switch (8); the lower surface of the locking switch (8) is fixedly connected to the connecting block (9); the lower surface of the connecting block (9) is fixedly connected to the limit block (10); the inner surface of the groove (5) is slidably connected to a placement plate (11); a limit hole (12) is provided inside the placement plate (11).

2. A multi-station heat treatment furnace according to claim 1, characterized in that: The vacuum pump (15) is electrically connected to an external power source, and the number of the grooves (5) is multiple.

3. The multi-station heat treatment furnace according to claim 1, characterized in that: The right end of the first connecting pipe (16) is fixedly connected to an air box (17), and the right surface of the air box (17) is fixedly connected to an air intake pipe (18).

4. A multi-station heat treatment furnace according to claim 3, characterized in that: One end of the air intake pipe (18) away from the air box (17) is in communication with the housing (1), and a solenoid valve is provided inside the air intake pipe (18).

5. The multi-station heat treatment furnace according to claim 1, characterized in that: The upper surface of the placement plate (11) is slidably connected to the fixing block (6), and the side surface of the limiting block (10) is slidably connected to the placement plate (11).

6. The multi-station heat treatment furnace according to claim 1, characterized in that: The lower end of the air outlet pipe (14) is connected to the shell (1), and the right end of the first connecting pipe (16) is connected to the air box (17).

7. The multi-station heat treatment furnace according to claim 1, characterized in that: A heat-conducting rod (13) is fixedly connected to the lower surface of the placement plate (11), and there are a plurality of heat-conducting rods (13).

8. The multi-station heat treatment furnace according to claim 1, characterized in that: A door (2) is hingedly connected to the front surface of the housing (1).

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