Feeding device of pre-vacuumizing nitriding furnace

Abstract

A guide rod is fixed at the center of a guide cylinder of the nitriding furnace, the feeding device comprises a feeding frame, the feeding frame comprises two groups of cross beams, a plurality of groups of partition plates and a bottom support, the plurality of groups of partition plates are fixed between the two groups of cross beams, the bottom support is fixed at the bottoms of the partition plates, a sliding cavity block is arranged at the center of the feeding frame, and the sliding cavity block is connected with the guide rod. A sliding cavity matched with the guide rod is formed in the center of the sliding cavity block; according to the feeding device of the pre-vacuumizing nitriding furnace, feeding and positioning are accurate, and the sliding cavity block is matched with the guide rod and matched with the guide rod in shape, so that feeding is accurate and smooth; workpiece placement management is optimized, layered and classified placement is achieved, fixing protection is enhanced, and the production management efficiency and the product percent of pass are improved; and cooperation with other assemblies is enhanced, seamless butt joint with the sliding rail assembly is achieved, driving operation of the pushing frame device is facilitated, the stability, efficiency, automation and intelligence level of operation of the feeding device are improved, and the labor intensity and risk of workers are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of nitriding furnaces, and in particular to a feeding device for a pre-vacuum nitriding furnace. Background Technology

[0002] In traditional nitriding furnace material handling processes, there is often a lack of specially designed feeding rack structures. In the past, relatively simple and direct material handling methods were usually adopted, such as manually placing the workpiece on a simple pallet or platform, and then using external mechanical force to push or lift it in an attempt to send the workpiece into the guide tube of the nitriding furnace.

[0003] This primitive feeding method has many drawbacks. Without a professional feeding rack, it's difficult to ensure stable placement and precise positioning of the workpieces when feeding them into the guide tube. Without suitable support and partition structures, workpieces are prone to colliding with each other or slipping off the handling equipment during movement due to shaking and tilting. This not only causes surface damage to the workpieces and affects product quality, but may also leave debris inside the guide tube, interfering with the normal operation and process effect of the nitriding furnace, increasing equipment maintenance costs and the risk of failure. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a feeding device for a pre-vacuum nitriding furnace, which provides precise feeding and positioning, and ensures accurate and smooth feeding by matching the sliding cavity block and guide rod with their respective shapes; optimizes workpiece placement management by placing workpieces in layers and categories and enhancing their fixing and protection, thereby improving production management efficiency and product qualification rate; enhances collaboration with other components, seamlessly connects with the slide rail assembly, facilitates the driving operation of the pusher device, and improves the stability, efficiency, automation and intelligence of the feeding device, while reducing manual labor intensity and risks.

[0006] To achieve the above objectives, this utility model proposes a feeding device for a pre-vacuum nitriding furnace. A guide rod is fixed at the center of the guide cylinder of the nitriding furnace, and the feeding device includes:

[0007] The feeding rack includes two sets of crossbeams, multiple sets of partitions and a bottom support. The multiple sets of partitions are fixed between the two sets of crossbeams, and the bottom support is fixed to the bottom of the partitions. A sliding cavity block is provided in the center of the feeding rack, and a sliding cavity adapted to the guide rod is opened in the center of the sliding cavity block.

[0008] A slide rail assembly, comprising two sets of slide rods, two sets of sliders, and two sets of clamping members, wherein the sliders are slidably connected to the outer wall of the slide rods, and the clamping members are fixed to the inner wall of the sliders;

[0009] A pusher device, comprising a push mechanism, a transfer frame, and a push block, wherein the push block is connected to the output end of the push mechanism via the transfer frame.

[0010] This utility model's pre-vacuum nitriding furnace feeding device features precise feeding and positioning. The sliding cavity block and guide rod, along with their matching shapes, ensure accurate and smooth feeding. It optimizes workpiece placement management, allowing for layered and categorized placement with enhanced fixation and protection, thereby improving production management efficiency and product qualification rate. Furthermore, it enhances collaboration with other components, seamlessly connecting with the slide rail assembly to facilitate the drive operation of the pusher device. This improves the stability, efficiency, automation, and intelligence of the feeding device's operation, while reducing manual labor intensity and risks.

[0011] In addition, the pre-vacuum nitriding furnace feeding device proposed in the application may also have the following additional technical features:

[0012] Specifically, the feeding rack also includes a sealing block, which is disposed at the end of the feeding rack. The shape of the sealing block is adapted to the shape of the inlet of the guide tube, and a gasket is connected to the outer wall of the sealing block.

[0013] Specifically, the feeding rack also includes multiple sets of fixing rods, which are arranged inside the feeding rack.

[0014] Specifically, the feeding rack also includes a ring frame, one end of which is rotatably connected to the surface of a set of crossbeams, and the other end of which is provided with a slot. The interior of another set of crossbeams is provided with a locking block for engaging the slot.

[0015] Specifically, a hook is provided at the end of the push block, and a hook is provided at the output end of the pushing mechanism.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 This is a schematic diagram of the structure of a pre-vacuum nitriding furnace feeding device according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the feeding rack in the pre-vacuum nitriding furnace feeding device according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the feeding rack in the pre-vacuum nitriding furnace feeding device according to another embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the pusher device in the pre-vacuum nitriding furnace feeding device according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the slide rail assembly in the pre-vacuum nitriding furnace feeding device according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the ring frame in the pre-vacuum nitriding furnace feeding device according to an embodiment of the present invention.

[0024] As shown in the figure: 1. Guide tube; 2. Guide rod; 3. Feeding rack; 4. Slide rail assembly; 5. Push frame device; 6. Sealing block; 7. Fixing rod; 8. Ring frame; 9. Clamping block; 10. Hook ring; 11. Hook buckle; 301. Crossbeam; 302. Partition plate; 303. Base support; 304. Sliding cavity block; 401. Slide rod; 402. Sliding block; 403. Clamping component; 501. Pushing mechanism; 502. Adapter frame; 503. Push block. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0026] The feeding device for the pre-vacuum nitriding furnace according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0027] like Figures 1-6 As shown in the figure, a feeding device for a pre-vacuum nitriding furnace according to an embodiment of the present invention includes a guide rod 2 fixed at the center of the guide cylinder 1 of the nitriding furnace, and the feeding device includes:

[0028] The feeding rack 3 includes two sets of crossbeams 301, multiple sets of partitions 302, and a bottom support 303. The multiple sets of partitions 302 are fixed between the two sets of crossbeams 301, and the bottom support 303 is fixed to the bottom of the partitions 302. A sliding cavity block 304 is provided in the center of the feeding rack 3. The center of the sliding cavity block 304 has a sliding cavity that matches the guide rod 2. The guide rod 2 can slide inside the sliding cavity block 304. A cavity for placing workpieces is formed between the partitions 302. Different cavities can hold different workpieces. The inside of the feeding rack 3 is used to place workpieces. The overall shape of the feeding rack 3 is cylindrical. The shape of the feeding rack 3 matches the shape of the guide tube 1. The workpiece inside the feeding rack 3 is fed into the inside of the guide tube 1 of the nitriding furnace and then treated by the nitrogen atmosphere of the nitriding furnace.

[0029] The slide rail assembly 4 includes two sets of slide rods 401, two sets of sliders 402, and two sets of clamping members 403. The sliders 402 are slidably connected to the outer wall of the slide rods 401, and the clamping members 403 are fixed to the inner side wall of the sliders 402. The clamping members 403 can be clamping cylinders.

[0030] The pusher device 5 includes a pusher mechanism 501, a transfer frame 502, and a pusher block 503. The pusher block 503 is connected to the output end of the pusher mechanism 501 through the transfer frame 502. The pusher mechanism 501 pushes in the direction of the feed direction of the guide tube 1. The pusher mechanism 501 can be a hydraulic pusher mechanism 501, a cylinder pusher mechanism 501, an electric pusher mechanism 501, or a linear module pusher mechanism 501, etc. The linear module pusher mechanism 501 includes a guide rail, a motor, a ball screw, and a screw bearing seat. The transfer frame 502 is connected to the moving end of the ball screw.

[0031] The feeding device may also include a lifting device, which lifts the material to the position of the clamping member 403 via the base of the two feeding racks 3, and then the clamping member 403 is fixed.

[0032] Specifically, the feeding rack 3 is placed between the clamping cylinders, and the feeding rack 3 is fixed on the slider 402. The pusher device 5 is driven by the drive mechanism 501, which in turn drives the push block 503 to move, pushing the feeding rack 3. The feeding rack 3 slides on the slide rod 401 of the slide rail assembly 4, allowing the feeding rack 3 to enter the interior of the guide cylinder 1. When the feeding rack 3 enters the interior of the guide cylinder 1, the slide block 304 is slidably connected to the guide rod 2. When the feeding rack 3 enters the guide cylinder 1 to a length greater than half its length, the clamping cylinder is released, and the pusher device 5 pushes until the feeding rack 3 is sent into the interior of the guide cylinder 1.

[0033] In one embodiment of this utility model, such as Figures 2-3As shown, the feeding rack 3 also includes a sealing block 6. The sealing block 6 is located at the end of the feeding rack 3. The shape of the sealing block 6 is adapted to the shape of the inlet of the guide cylinder 1. A gasket is connected to the outer wall of the sealing block 6. When the device feeds material, the guide port of the guide cylinder 1 is closed, and the gasket enters to make the inner wall shape of the feeding rack 3 and the guide cylinder 1 match, which facilitates the feeding rack 3 to enter.

[0034] In one embodiment of this utility model, such as Figures 2-3 As shown, the feeding rack 3 also includes multiple sets of fixing rods 7. The multiple sets of fixing rods 7 are arranged inside the feeding rack 3. The fixing rods 7 can hang workpieces with hooks, or connect workpieces through hooks and hang the workpieces on the fixing rods 7.

[0035] In one embodiment of this utility model, such as Figure 2 , Figure 3 and Figure 6 As shown, the feeding rack 3 also includes a ring frame 8. One end of the ring frame 8 is rotatably connected to the surface of a set of crossbeams 301. The other end of the ring frame 8 is provided with a slot. The interior of another set of crossbeams 301 is provided with a locking block 9 for engaging the slot. The ring frame 8 can close the feeding rack 3. The ring frame 8 and the locking block 9 are engaged. The locking block 9 is slidably connected to the interior of the crossbeam 301 and is connected by a spring. Pushing the locking block 9 will separate the locking block 9 from the slot, and the ring frame 8 can be opened.

[0036] In one embodiment of this utility model, such as Figure 4 As shown, a hook 10 is provided at the end of the push block 503, and a hook 11 is provided at the output end of the push mechanism 501. When the feed rack 3 is taken out, the hook 11 hooks the hook 10, and the feed rack 3 is moved out by driving the push mechanism 501. The hook 11 has a certain range of motion and can hook the hook 10.

[0037] Specifically, in actual execution, the feeding rack 3 is placed between the clamping cylinders, and the clamping cylinder feeding rack 3 is fixed on the slider 402. The pusher device 5 is driven by the pusher device 5, which drives the pusher mechanism 501. The pusher mechanism 501 drives the pusher block 503 to move, pushing the feeding rack 3. The feeding rack 3 slides on the slide rod 401 of the slide rail assembly 4, so that the feeding rack 3 enters the interior of the guide cylinder 1. When the feeding rack 3 enters the interior of the guide cylinder 1, the slide block 304 is slidably connected to the guide rod 2. When the feeding rack 3 enters to more than half the length of the guide cylinder 1, the clamping cylinder is released, and the pusher device 5 pushes until the feeding rack 3 is sent into the interior of the guide cylinder 1. When the feeding rack 3 needs to be removed, the hook 11 hooks the hook ring 10, drives the pusher mechanism 501, and when the feeding rack 3 moves halfway, it is clamped by the clamping cylinder, so that the feeding rack 3 enters the track of the slide rail assembly 4 until the feeding rack 3 is removed.

[0038] In summary, the pre-vacuum nitriding furnace feeding device of this utility model embodiment provides precise feeding and positioning. The cooperation and shape adaptation between the sliding cavity block 304 and the guide rod 2 ensure accurate and smooth feeding. It optimizes workpiece placement management, allowing for layered and categorized placement with enhanced fixation and protection, thereby improving production management efficiency and product qualification rate. Furthermore, it enhances collaboration with other components, seamlessly connecting with the slide rail assembly 4 to facilitate the driving operation of the pusher device 5, improving the stability, efficiency, automation, and intelligence of the feeding device's operation, while reducing manual labor intensity and risks.

[0039] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A feeding device for a pre-vacuum nitriding furnace, wherein a guide rod (2) is fixed at the center of the guide tube (1) of the nitriding furnace, characterized in that, include: The feeding rack (3) includes two sets of crossbeams (301), multiple sets of partitions (302), and a base (303), wherein, Multiple sets of the partitions (302) are fixed between two sets of the crossbeams (301); The base (303) is fixed to the bottom of the partition (302), and the center of the feeding rack (3) is provided with a sliding cavity block (304), and the center of the sliding cavity block (304) is provided with a sliding cavity that is compatible with the guide rod (2); The slide rail assembly (4) includes two sets of slide rods (401), two sets of sliders (402) and two sets of clamping members (403). The sliders (402) are slidably connected to the outer wall of the slide rods (401), and the clamping members (403) are fixed to the inner wall of the sliders (402). The pusher device (5) includes a pusher mechanism (501), a converter frame (502) and a pusher block (503), wherein the pusher block (503) is connected to the output end of the pusher mechanism (501) through the converter frame (502).

2. The feeding device for the pre-vacuum nitriding furnace according to claim 1, characterized in that, The feeding rack (3) also includes a sealing block (6), which is located at the end of the feeding rack (3). The shape of the sealing block (6) is adapted to the inlet shape of the guide tube (1), and a gasket is connected to the outer wall of the sealing block (6).

3. The feeding device for the pre-vacuum nitriding furnace according to claim 1, characterized in that, The feeding rack (3) also includes multiple sets of fixing rods (7), which are arranged inside the feeding rack (3).

4. The feeding device for the pre-vacuum nitriding furnace according to claim 1, characterized in that, The feeding rack (3) also includes a ring frame (8), one end of which is rotatably connected to the surface of a set of crossbeams (301), and the other end of which is provided with a slot. The interior of another set of crossbeams (301) is provided with a locking block (9) that engages with the slot.

5. The feeding device for the pre-vacuum nitriding furnace according to claim 1, characterized in that, The push block (503) is provided with a hook (10) at one end, and the push mechanism (501) is provided with a hook (11) at the output end.

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