A heat treatment furnace facilitating the taking and placing of parts

Abstract

The utility model provides a kind of heat treatment furnace facilitating to take and place piece, including guide rail, the guide rail has non-interference furnace body and several trolleys, the furnace body includes the fireproof wall of U-shaped section, and trolley shuttles from furnace body, the side wall of the fireproof wall is provided with shell, the lower end of the shell is uniformly connected with fixed block, second roller is rotatably arranged on the fixed block, the lower end of the shell is fixedly connected with third motor, the output of third motor and the rotating shaft of second roller middle part are all fixedly connected with second sprocket, second chain is sleeved and arranged on second sprocket, the trolley includes base, the lower end of the base is uniformly provided with first roller, the lower end of the base is fixedly connected with first motor, the output of first motor and the rotating shaft of first roller middle part are all fixedly connected with first sprocket, first chain is sleeved and arranged on first sprocket.The utility model can improve the efficiency of heat treatment.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment furnace technology, and in particular to a heat treatment furnace that facilitates the handling of parts. Background Technology

[0002] A heat treatment furnace refers to an electric or fuel-fired furnace used for heating furnace charge for heat treatment. Traditional box-type heat treatment furnaces generally have one furnace door, through which workpieces are placed and removed. Workpiece handling is typically done using a specialized forklift, which places high demands on the operators. The shorter the time for handling workpieces, the earlier the heat treatment of the next batch can be carried out.

[0003] With the increasing requirements for picking up and placing workpieces, trolleys have emerged. Trolleys can move on guide rails into the furnace body, which greatly improves the efficiency of picking up and placing workpieces, as shown in the patent subject "A trolley for a heat treatment furnace and its installation method and heat treatment furnace", application number "CN201911255677.9".

[0004] In subsequent developments, patents such as the "Two-Way Trolley Heat Treatment Furnace" (application number CN201120309577.2) emerged, which allows trolleys to be fed into the furnace from both ends, greatly improving heat treatment efficiency. However, the following problems still exist: the heat treatment process for workpieces involves four steps: placing the workpiece on the trolley → pushing the workpiece into the furnace for heat treatment on the trolley → removing the workpiece from the furnace after heat treatment and waiting for cooling → unloading the workpiece from the trolley. Setting up two trolleys cannot fully increase production capacity. In addition, the sealing of the gap between the trolley sidewall and the furnace body must be considered. Utility Model Content

[0005] To address the aforementioned problems, this utility model discloses a heat treatment furnace that facilitates the handling of parts, comprising a guide rail on which a furnace body and several trolleys are mounted without interference. That is, both the furnace body and the trolleys can move independently on the guide rail.

[0006] The furnace body includes a U-shaped fireproof wall, and a trolley shuttles through the furnace body. An outer shell is installed on the side wall of the fireproof wall. Fixed blocks are fixedly connected to the four corners of the lower end of the outer shell. Second rollers are rotatably mounted on the fixed blocks. A third motor is fixedly connected to the lower end of the outer shell. A second sprocket is fixedly connected to the output end of the third motor and the rotating shaft in the middle of the second roller. A second chain is sleeved on the second sprocket. When the third motor is started, the second roller rotates through the transmission of the second sprocket and the second chain, thereby moving the furnace body.

[0007] The trolley includes a base, with first rollers at each of the four lower corners of the base. A first motor is fixedly connected to the lower end of the base. A first sprocket is fixedly connected to the output end of the first motor and the rotating shaft in the middle of the first rollers. A first chain is sleeved on the first sprocket. When the first motor is started, the first rollers rotate through the transmission of the first sprockets and the second chain, thereby moving the trolley.

[0008] Preferably, a fireproof brick is fixedly connected to the upper end of the base. Grooves are provided on both sides of the fireproof brick, and sealing strips are movably installed within these grooves. The fireproof brick, fireproof wall, and sealing strip are all made of the same lightweight material, such as high-alumina brick.

[0009] Preferably, a second motor is fixedly connected to the bottom of the base. Both ends of the second motor have extended screws with opposite rotation directions. A push rod is threadedly connected to the end of each screw, and the end of each push rod is fixedly connected to the same angle steel. The angle steel and the sealing strip are fixedly connected. When the second motor is started, the screws rotate, causing the push rod to push the connected angle steel and sealing strip, thus bringing the sealing strip into contact with the fireproof wall and achieving a sealing effect.

[0010] Preferably, both ends of the outer shell are vertically fixedly connected to channel steel, and a sealing door is slidably installed inside the channel steel. The structure of the sealing door is the same as that of existing heat treatment furnaces, and when the furnace body is closed, the lower end of the sealing door is in contact with the upper end surface of the trolley.

[0011] Preferably, a fourth motor is fixedly connected to the upper end of the outer casing, and a take-up reel is fixedly connected to the output end of the fourth motor. A cable is wound on the take-up reel, and the other end of the cable is fixedly connected to the upper end of the sealing door. When the fourth motor is started, the cable is wound and unwound from the take-up reel, thus raising or lowering the sealing door.

[0012] Preferably, a support rod is fixedly connected to the upper end of the channel steel, and a pulley is provided on the support rod, with the cable passing over the pulley. The pulley is used for guidance.

[0013] The beneficial effects of this utility model are as follows: 1. The system is equipped with multiple trolleys, and the trolleys and furnace body are movable. This allows for four steps to be performed simultaneously: placing workpieces on the trolleys; pushing the workpieces into the furnace body for heat treatment by the trolleys; removing the workpieces from the furnace body after heat treatment and waiting for cooling; and unloading the workpieces from the trolleys. This improves the efficiency of heat treatment.

[0014] 2. The structure includes a sealing strip. The gap between the trolley and the furnace body ensures that the trolley can pass through the furnace body smoothly, but it also reduces the heat preservation performance. The sealing strip can be pushed into the interior of the furnace body to seal the gap and thus achieve a sealing effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the trolley of this utility model; Figure 3 This is a schematic diagram of the bottom of the trolley of this utility model; Figure 4 This is a schematic diagram of the sealing structure of this utility model; Figure 5 This is a three-dimensional schematic diagram of the furnace body of this utility model; Figure 6 This is a schematic diagram of the furnace body moving structure of this utility model.

[0016] List of reference numerals in the attached diagram: 1. Cart; 2. Furnace body; 3. Guide rail; 11. Base; 12. Sealing strip; 13. Fireproof brick; 14. First roller; 15. First sprocket; 16. First chain; 17. First motor; 18. Second motor; 19. Screw; 110. Push rod; 111. Angle steel; 21. Fireproof wall; 22. Outer shell; 23. Third motor; 24. Second roller; 25. Channel steel; 26. Take-up reel; 27. Fourth motor; 28. Cable; 29. ​​Support rod; 210. Sealing door; 211. Second chain; 212. Fixing block; 213. Second sprocket. Detailed Implementation

[0017] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0018] like Figures 1 to 6 As shown, a heat treatment furnace that facilitates the handling of parts includes a guide rail 3, on which a furnace body 2 and several trolleys 1 are mounted without interference. That is, the furnace body 2 and the trolleys 1 can move independently on the guide rail 3. Furthermore, two sets of guide rails 3 are provided, one for the furnace body 2 and the other for the trolleys 1.

[0019] The furnace body 2 includes a U-shaped fireproof wall 21. An electric heating unit is installed on the side wall of the fireproof wall 21, and the trolley 1 shuttles through the furnace body 2. Correspondingly, the furnace body 2 can also move above the corresponding trolley 1. The side wall of the fireproof wall 21 is provided with a shell 22. The four corners of the lower end of the shell 22 are fixedly connected with fixing blocks 212. The fixing blocks 212 are rotatably mounted with second rollers 24. The second rollers 23 and the guide rail 3 are in rolling cooperation. The lower end of the shell 22 is fixedly connected with a third motor 23. The output end of the third motor 23 and the rotating shaft in the middle of the second roller 24 are both fixedly connected with a second sprocket 213. The rotating shaft at this point is in rotatable cooperation with the fixing block 212. The second sprocket 213 is sleeved with a second chain 211. That is, when the furnace body 2 needs to be moved, the third motor 23 is started. Through the transmission of the second sprocket 213 and the second chain 212, the second roller 24 is driven to rotate, thereby realizing the movement of the solid 2 on the guide rail 3.

[0020] The trolley 1 includes a base 11, and each of the four lower corners of the base 11 is provided with a first roller 14. Similarly, the first roller 14 is fixed to the base 11 by a structure similar to a fixing block 212. A first motor 17 is fixedly connected to the lower end of the base 11. A first sprocket 15 is fixedly connected to the output end of the first motor 17 and the rotating shaft in the middle of the first roller 14. A first chain 16 is sleeved on the first sprocket 15. When the trolley 1 moves, the first motor 17 is started, and the first roller 14 is driven to rotate through the transmission of the first sprocket 15 and the first chain 16.

[0021] Fireproof bricks 13 are fixedly connected to the upper end of the base 11. The fireproof bricks 13 serve as heat insulation materials. Grooves are provided on both sides of the fireproof bricks 13, and sealing strips 12 are movably installed in the grooves. The material of the sealing strips 12 is the same as that of the fireproof bricks 13 and the fireproof wall 21, which are all lightweight fireproof materials.

[0022] A second motor 18 is fixedly connected to the bottom of the base 11. Both ends of the second motor 18 are provided with screws 19, and the screws 19 rotate in opposite directions. The ends of the screws 19 are threadedly connected to push rods 110. The push rods 110 are provided with reinforcing ribs and have a T-shaped cross-section. The ends of the push rods 110 are fixedly connected to the same angle steel 111. The angle steel 111 and the sealing strip 12 are fixedly connected. When the furnace body 2 is directly above the trolley 1, the second motor 18 is started, the screws 19 rotate, and the push rods 110 on both sides move away from the second motor 18, that is, push the sealing strip 12 to adhere to the fireproof wall 1, so as to achieve a seal between the two as much as possible.

[0023] Both ends of the outer shell 22 are vertically fixedly connected with channel steel 25, that is, two channel steels 25 are fixedly connected to both the front and rear ends of the outer shell 22. A sealing door 210 is slidably installed inside the channel steel 25. The channel steel 25 plays a guiding role to realize the lifting and lowering of the sealing door 210. The sealing door 210 is the same as the existing solution, and will not be described in detail here.

[0024] A fourth motor 27 is fixedly connected to the upper end of the outer casing 22. A take-up reel 26 is fixedly connected to the output end of the fourth motor 27. A cable 28 is wound on the take-up reel 26. The other end of the cable 28 is fixedly connected to the upper end of the sealing door 210. When the fourth motor 27 is started, the take-up reel 26 rotates, realizing the winding and unwinding operation of the cable 28, that is, realizing the raising and lowering of the sealing door 210.

[0025] A support rod 29 is fixedly connected to the upper end of the channel steel 25. A pulley is installed on the support rod 29, and the cable 28 passes over the pulley. The pulley serves as a guide.

[0026] Furthermore, the solution also includes a control box for controlling the control carriage 1 and the furnace body 2, as well as sensors for acquiring the positions of the carriage 1 and the furnace body 2. A cable chain structure is installed in the power supply cable of the furnace body 2.

[0027] The technical means disclosed in this utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A heat treatment furnace for easy handling of parts, characterized in that, Includes a guide rail (3), on which there is a non-interfering furnace body (2) and several carts (1); The furnace body (2) includes a fireproof wall (21) with a U-shaped cross section, and the trolley (1) shuttles through the furnace body (2). The side wall of the fireproof wall (21) is provided with a shell (22). The lower end of the shell (22) is fixedly connected to four corners with fixing blocks (212). The fixing blocks (212) are rotatably provided with second rollers (24). The lower end of the shell (22) is fixedly connected to a third motor (23). The output end of the third motor (23) and the shaft in the middle of the second roller (24) are both fixedly connected to a second sprocket (213). The second sprocket (213) is sleeved with a second chain (211). The trolley (1) includes a base (11), and each of the four corners of the lower end of the base (11) is provided with a first roller (14). The lower end of the base (11) is fixedly connected to a first motor (17). The output end of the first motor (17) and the shaft in the middle of the first roller (14) are both fixedly connected to a first sprocket (15). A first chain (16) is sleeved on the first sprocket (15).

2. The heat treatment furnace for easy handling of parts according to claim 1, characterized in that: Fireproof bricks (13) are fixedly connected to the upper end of the base (11). The fireproof bricks (13) have grooves on both sides, and sealing strips (12) are movably installed in the grooves.

3. A heat treatment furnace for easy handling of parts according to claim 2, characterized in that: The bottom of the base (11) is fixedly connected to a second motor (18). Both ends of the second motor (18) are provided with screws (19), and the screws (19) rotate in opposite directions. The end of the screw (19) is threadedly connected to a push rod (110). The end of the push rod (110) is fixedly connected to the same angle steel (111). The angle steel (111) and the sealing strip (12) are fixedly connected.

4. A heat treatment furnace for easy handling of parts according to claim 1, characterized in that: Both ends of the outer shell (22) are vertically fixedly connected to channel steel (25), and a sealing door (210) is slidably installed inside the channel steel (25).

5. A heat treatment furnace for easy handling of parts according to claim 4, characterized in that: The upper end of the outer shell (22) is fixedly connected to a fourth motor (27), the output end of the fourth motor (27) is fixedly connected to a take-up reel (26), a cable (28) is wound on the take-up reel (26), and the other end of the cable (28) is fixedly connected to the upper end of the sealing door (210).

6. A heat treatment furnace for easy handling of parts according to claim 5, characterized in that: The upper end of the channel steel (25) is fixedly connected to a support rod (29), and a pulley is provided on the support rod (29), and the cable (28) passes over the pulley.

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