Automatic loading and unloading box type resistance furnace

Abstract

The utility model discloses a box -type resistance furnace of automatic feeding and discharging, including resistance furnace main part, the tackle, the material frame and drive assembly. Resistance furnace main part one side is equipped with the slide rail, and the slide rail surface is arranged with drive rod group, and its output is connected with the tackle, is used for driving the tackle and realizes the feeding and discharging movement along the slide rail, the material frame rotation is installed on the tackle surface, and the top surface is equipped with the toothed disc, and the toothed disc is engaged with transmission chain, and is driven by motor and belt pulley, realizes the rotation of material frame. The tackle one side is equipped with the furnace door board cooperation with resistance furnace main part, is used for when material frame enters or exits the hearth automatic opening and closing. This structure can realize the automatic feeding and discharging and rotary heating of work piece, guarantees the even heating, and through the roller and transmission structure improves the stability of sliding and rotation, and the cooperation heat -proof layer and insulating layer improves the furnace body energy efficiency, has the advantages of high degree of automation, good security and the remarkable advantage of energy -conserving effect.

Description

Technical Field

[0001] This utility model relates to the field of resistance furnace technology, specifically to a box-type resistance furnace with automatic loading and unloading. Background Technology

[0002] Currently, box-type resistance furnaces are widely used as a common heat treatment equipment in fields such as machinery manufacturing, metal processing, and materials testing. Traditional box-type resistance furnaces mostly rely on manual operation for loading and unloading, i.e., manually opening and closing the furnace door and manually placing or removing workpieces. While this method is simple in structure, it has many shortcomings in practical applications.

[0003] In typical structures, some resistance furnaces are equipped with simple trolley devices to carry workpieces and push or pull them into or out of the furnace along tracks. However, these trolleys mostly rely on manual pushing or simple linear drive structures, lacking automated control. Operators still need to frequently participate in the loading and unloading process, which is not only labor-intensive but also poses a high safety risk in high-temperature environments. Furthermore, the trolleys experience significant frictional resistance while running on the tracks, making them prone to instability or jamming, affecting the smoothness of loading and unloading.

[0004] On the other hand, existing material racks are mostly fixed structures, with the workpieces stationary inside the furnace. Because the temperature distribution within the furnace is often uneven, workpieces on fixed racks are prone to uneven heating during the heating process, leading to unstable product quality, especially in heat treatment processes requiring strict temperature control. Furthermore, existing resistance furnaces typically have independently installed doors that require manual opening and closing, which is not only cumbersome but also prone to heat loss during frequent opening and closing, reducing energy efficiency.

[0005] In view of this, we have studied and improved the existing problems to provide an automatic loading and unloading box-type resistance furnace to solve the current problems. The aim of this technology is to solve the problems and improve its practical value. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows: an automatic loading and unloading box-type resistance furnace, including a resistance furnace body, a trolley, a material rack, and a drive assembly; a slide rail is provided on one side of the resistance furnace body, one end of the slide rail extends to the bottom of the inner cavity of the resistance furnace body, and a drive rod assembly is provided on the surface of the slide rail for driving the trolley to move along the slide rail; the material rack is rotatably mounted on the surface of the trolley for carrying the workpiece to be heated; the drive assembly includes a fixed seat, a motor, and a transmission chain, a pulley is rotatably mounted on the surface of the fixed seat for supporting the cyclic movement of the transmission chain, and a gear plate is fixedly mounted on the top surface of the material rack, and the gear plate realizes the rotation drive of the material rack by meshing with the surface of the transmission chain.

[0008] In a preferred embodiment, the drive rod assembly is further configured as follows: the drive rod assembly is either a hydraulic rod or a lead screw assembly, and its output end is connected to the trolley for driving the trolley to move along the slide rail for loading and unloading. Specifically, this configuration can provide stable thrust through hydraulic or screw transmission, ensuring smooth trolley operation and reliable workpiece loading and unloading.

[0009] In a preferred embodiment, the drive assembly is further configured such that the drive assembly is located on the bottom surface of the inner cavity of the resistance furnace body, the motor is fixed to the top surface of the resistance furnace body, and the motor output end is driven by a pulley to the surface of the transmission chain. Specifically, this arrangement allows the motor to be installed away from the high-temperature zone, extending the motor's lifespan, while improving transmission efficiency and the overall structural compactness through the vertically distributed transmission paths.

[0010] In a preferred embodiment, the drive assembly is further configured such that a clamping rod is rotatably mounted on one end of its fixed base. A torsion spring is provided at the connection point between the clamping rod and the fixed base. The clamping rod is arc-shaped and forms an annular cavity with the fixed base for engaging the gear disc. Specifically, this design provides limiting and support during gear disc rotation, preventing the gear disc from shifting during meshing and improving the stability of the material rack rotation.

[0011] In a preferred embodiment, a roller is further configured between the bottom of the trolley and the slide rail to reduce friction and improve sliding stability. Specifically, the roller structure effectively reduces sliding resistance, allowing the trolley to remain smooth during long-stroke movement and improving the reliability and durability of loading and unloading operations.

[0012] In a preferred embodiment, the trolley is further configured such that a furnace door plate is provided on one side for engaging with the main body of the resistance furnace. The furnace door plate moves in the same direction as the trolley, facilitating the sealing and opening of the resistance furnace main body as the material rack enters or exits the furnace chamber. Specifically, this structure can automatically complete the opening and closing of the furnace door while the trolley pushes the material rack in and out of the furnace chamber, reducing manual intervention and improving operational efficiency.

[0013] In a preferred embodiment, the furnace door panel and the surface of the resistance furnace body are further configured with a heat insulation layer and a heat preservation layer. Specifically, this configuration can effectively reduce heat loss from the furnace body, improve energy efficiency, and enhance operator safety.

[0014] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, by setting a slide rail on one side of the resistance furnace body, and connecting it with the drive rod assembly and the trolley, automatic loading and unloading of the material rack can be realized, reducing manual operation and significantly improving production efficiency and operational safety. At the same time, the roller structure at the bottom of the trolley reduces frictional resistance, making the loading and unloading process more stable and smooth, suitable for continuous, large-scale heat treatment operations.

[0015] 2. In this invention, the automatic rotation of the material rack is achieved through the meshing connection between the geared disc on the top surface of the rack and the transmission chain, driven by a motor and pulley. This ensures uniform heating of the workpieces inside the furnace during the heating process and avoids the problem of unstable workpiece quality caused by local temperature differences. Simultaneously, the furnace door plate structure mounted on the trolley enables automatic opening and closing of the furnace door during loading and unloading. Furthermore, the thermal efficiency and energy-saving effect of the furnace body are improved through the heat insulation layer and the heat preservation layer. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the trolley unloading state according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the resistance furnace body according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the material rack and drive assembly structure according to one embodiment of the present invention; Figure 5 This is a schematic diagram of the drive component structure according to an embodiment of the present invention.

[0017] Figure label: 100. Resistance furnace body; 110. Slide rail; 120. Drive rod assembly; 200, pulley; 300, rack; 310, gear plate; 400. Drive assembly; 410. Mounting base; 420. Motor; 430. Transmission chain; 411. Clamping lug; 412. Pulley; 413. Clamping guide gear. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0019] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0020] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an automatic loading and unloading box-type resistance furnace.

[0021] Combination Figures 1-5 As shown, the present invention provides an automatic loading and unloading box-type resistance furnace, including a resistance furnace body 100, a trolley 200, a material rack 300, and a drive assembly 400.

[0022] In this embodiment, a slide rail 110 is provided on one side of the resistance furnace body 100, and one end of the slide rail 110 extends to the bottom of the inner cavity of the resistance furnace body 100. A drive rod assembly 120 is disposed on the surface of the slide rail 110, and the output end of the drive rod assembly 120 is connected to the trolley 200 to drive the trolley 200 to move along the slide rail 110, thereby realizing the automatic loading and unloading of the material rack 300.

[0023] In this embodiment, the material rack 300 is rotatably mounted on the surface of the trolley 200 to support the workpiece to be heated. A geared disc 310 is fixedly mounted on the top surface of the material rack 300. The geared disc 310 rotates under the action of the drive assembly 400 by meshing with the transmission chain 430, thereby driving the material rack 300 to rotate.

[0024] The drive assembly 400 includes a fixed base 410, a motor 420, and a transmission chain 430. A pulley 412 is rotatably mounted on the surface of the fixed base 410, supporting the transmission chain 430 and enabling its cyclic movement. The motor 420 is fixed to the top surface of the resistance furnace body 100, and the output end of the motor 420 is connected to the transmission chain 430 via the pulley 412, thereby driving the material rack 300 and the gear disc 310 to rotate synchronously.

[0025] In a preferred embodiment, such as Figures 4-5 As shown, a clamping rod 411 is rotatably mounted on one end of the fixed base 410, and a torsion spring is provided at the connection point between the clamping rod 411 and the fixed base 410. The clamping rod 411 is arc-shaped and forms an annular cavity with the fixed base 410, which is used to fit the gear disc 310. During rotation, it supports and limits the gear disc 310, ensuring the stable rotation of the material rack 300.

[0026] In another embodiment, the drive rod assembly 120 can be in the form of a hydraulic rod or a lead screw assembly. The hydraulic rod outputs thrust through a hydraulic cylinder to move the trolley 200, while the lead screw assembly achieves linear drive of the trolley 200 through helical transmission. Those skilled in the art can select different types of drive structures according to the actual application scenario.

[0027] In this embodiment, a roller is provided between the bottom of the trolley 200 and the slide rail 110, which can effectively reduce frictional resistance and improve the smoothness and durability of sliding during the loading and unloading process.

[0028] Furthermore, such as Figure 2 As shown, a furnace door plate is provided on one side of the trolley 200. The furnace door plate cooperates with the main body 100 of the resistance furnace and is used to seal and open when the material rack 300 enters or exits the furnace chamber. The movement direction of the furnace door plate is consistent with that of the trolley 200, which enables the furnace door to be opened and closed automatically during the loading and unloading process, thus improving the degree of automation.

[0029] In another preferred embodiment, the furnace door panel and the surface of the electric resistance furnace body 100 are provided with heat insulation layer and heat preservation layer, which can effectively reduce the heat loss of the furnace body and ensure the energy efficiency and working safety of the electric resistance furnace.

[0030] In summary, this utility model, through the cooperation of the resistance furnace body 100, the trolley 200, the material rack 300, and the drive assembly 400, realizes the automated loading and unloading of workpieces and the rotation of the material rack. This design not only reduces the intensity of manual operation and improves production efficiency, but also enhances the energy efficiency and safety of the resistance furnace through the automatic opening and closing of the furnace door and the heat insulation structure.

[0031] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A box-type resistance furnace with automatic loading and unloading, characterized in that, It includes the main body of the electric resistance furnace (100), the trolley (200), the material rack (300), and the drive assembly (400); The resistance furnace body (100) has a slide rail (110) on one side, and one end of the slide rail (110) extends to the bottom of the inner cavity of the resistance furnace body (100). The surface of the slide rail (110) is provided with a drive rod group (120) for driving the trolley (200) to move. The material rack (300) is rotatably mounted on the surface of the trolley (200) and is used to support the workpiece to be heated; The drive assembly (400) includes a fixed base (410), a motor (420), and a transmission chain (430). A pulley (412) is rotatably mounted on the surface of the fixed base (410) to support the cyclic movement of the transmission chain (430). A toothed disc (310) is fixedly mounted on the top surface of the material rack (300). The toothed disc (310) achieves rotational drive of the material rack (300) and the toothed disc (310) by meshing with the surface of the transmission chain (430).

2. The automatic loading and unloading box-type resistance furnace according to claim 1, characterized in that, The drive rod assembly (120) is either a hydraulic rod or a lead screw assembly, and its output end is connected to the trolley (200) to drive the trolley (200) to move along the slide rail (110) for loading and unloading.

3. The automatic loading and unloading box-type resistance furnace according to claim 1, characterized in that, The drive assembly (400) is disposed on the bottom surface of the inner cavity of the resistance furnace body (100), the motor (420) is fixed on the top surface of the resistance furnace body (100), and the output end of the motor (420) is driven by the pulley and the surface (430).

4. The automatic loading and unloading box-type resistance furnace according to claim 1, characterized in that, The drive assembly (400) has a clamping rod (411) rotatably mounted on one end of the fixed seat (410). A torsion spring is provided at the connection point between the clamping rod (411) and the fixed seat (410). The clamping rod (411) is arc-shaped and forms an annular cavity with the fixed seat (410) for engaging the gear disc (310).

5. A box-type resistance furnace with automatic loading and unloading according to claim 1, characterized in that, A roller is provided between the bottom of the trolley (200) and the slide rail (110) to reduce friction and improve sliding stability.

6. A box-type resistance furnace with automatic loading and unloading according to claim 1, characterized in that, The trolley (200) has a furnace door plate on one side for engaging with the resistance furnace body (100), and the furnace door plate moves in the same direction as the trolley (200) so that the material rack (300) can enter or exit the furnace chamber to seal and open the resistance furnace body (100).

7. A box-type resistance furnace with automatic loading and unloading according to claim 6, characterized in that, The furnace door panel and the surface of the electric resistance furnace body (100) are provided with a heat insulation layer and a heat preservation layer.

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