Tool for sintering and unloading hard alloy bars

Abstract

The utility model discloses a tool for sintering and unloading hard alloy bars, which relates to the technical field of hard alloy bar unloading, is matched with a sintering trough plate for use, and comprises a fixing frame, the fixing frame can be covered on the sintering trough plate, a plurality of support ribs are arranged in the fixing frame at equal intervals, an insertion and extraction opening penetrates through one side of the fixing frame, and a limiting groove is parallel to the insertion and extraction opening. The pulling plate penetrates through the insertion and extraction opening and is in insertion fit with the limiting groove; the tool for sintering and unloading the hard alloy bars can conveniently unload the hard alloy bars on the sintering trough plate, improves the unloading efficiency, can prevent short bars from colliding with each other in the unloading process to generate gaps, and ensures the qualified rate of products.

Description

Technical Field

[0001] This utility model relates to the field of cemented carbide bar unloading technology, specifically a tool for unloading cemented carbide bar sintering. Background Technology

[0002] To meet the ever-increasing demands of the machining industry for various cutting tools, cemented carbide bars, as the tool matrix material, are increasingly developing towards ultrafine and nanocrystalline grain structures in pursuit of high hardness and strength. However, this pursuit of higher hardness and strength in cemented carbide bars leads to increased brittleness, making them more prone to defects during machining and handling, thus reducing product yield. Particularly during the sintering and unloading process, slight sticking to the boat can occur after the cemented carbide bars are sintered on the graphite trough.

[0003] The common unloading method involves placing the sintering tank plate at an angle inside the unloading box, and then having employees gently tap the back of the plate to allow the bars to slide into the unloading box through the V-groove. This method is effective in preventing chips for long bars up to 300mm in length, but it is less effective for short bars ≤100mm in length. This is because shorter bars have a lower center of gravity, requiring a larger angle of inclination of the sintering tank plate to raise their center of gravity and facilitate their sliding into the unloading box. However, the lack of positional constraints for the short bars within the sintering tank plate, coupled with an excessively large angle, causes them to easily tip over and fall in large quantities under gravity. Some bars can even fall more than 20cm, resulting in collisions and chipping, thus reducing the product yield. To prevent chipping from these falling bars, employees must manually remove them one by one from the tank plate, but this method is inefficient. Utility Model Content

[0004] The purpose of this utility model is to provide a tool for unloading cemented carbide bars during sintering. This tool can easily unload cemented carbide bars from the sintering tank plate, improve unloading efficiency, and at the same time avoid short bars colliding with each other during unloading, thus ensuring product qualification rate.

[0005] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: A tool for unloading cemented carbide bars during sintering, used in conjunction with a sintering tank plate, includes a fixing frame, which can be covered on the sintering tank plate;

[0006] Multiple supporting ribs are provided at equal intervals within the fixing frame;

[0007] A plug-in port extends through one side of the mounting bracket;

[0008] A limiting groove is provided parallel to the insertion port and located on the other side of the fixing frame;

[0009] A pull plate extends through the insertion port and engages with the limiting groove.

[0010] In some embodiments, the fixing frame includes a plug-in plate, and the plug-in plate is provided with the plug-in port through it;

[0011] A limiting plate is provided, which is arranged parallel to the plug-in plate, and the limiting plate is provided with the limiting groove on the side of the limiting plate near the plug-in plate;

[0012] Two connecting plates are disposed between the plug-in plate and the limiting plate, and multiple supporting ribs are arranged parallel to each other between the two connecting plates.

[0013] In some embodiments, the cross-section of the connecting plate is L-shaped.

[0014] In some embodiments, the fixing frame further includes a limiting baffle, which is connected to the connecting plate and forms an insertion groove with the connecting plate. The insertion groove is inserted into the side wall of the sintering tank plate.

[0015] In some embodiments, the fixing frame further includes a support plate, which is connected to the limiting baffle, and the draw plate is slidably disposed on both support plates.

[0016] In some embodiments, the distance between the supporting rib and the side of the connecting plate away from the sintering tank plate is 1-2 cm.

[0017] In some embodiments, the side of the support rib closest to the sintering tank plate is curved.

[0018] In some embodiments, a handle is also included, which is disposed on the drawer panel.

[0019] In summary, this utility model has the following beneficial effects:

[0020] This tool for unloading cemented carbide bars during sintering allows for relative fixation between the fixed frame and the sintering tank plate. The insertion and connection of the pull plate with the fixed frame restricts the movement of the cemented carbide bars on the sintering tank plate, enabling the fixed frame and the sintering tank plate to rotate together. By pulling out the pull plate, the cemented carbide bars on the sintering tank plate can be easily unloaded, improving unloading efficiency. Simultaneously, it prevents short bars from colliding with each other during unloading, thus avoiding gaps and ensuring a high product qualification rate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention without the drawer plate;

[0023] Figure 3 This is a cross-sectional view of the present invention;

[0024] Figure 4 This is a cross-sectional view of the present invention, which is flipped over and covered on the sintering tank plate.

[0025] In the diagram: 1. Fixing frame; 11. Insertion plate; 12. Limiting plate; 13. Connecting plate; 14. Limiting baffle; 15. Insertion slot; 16. Support plate; 2. Supporting rib; 3. Insertion port; 4. Limiting slot; 5. Pull-out plate; 6. Handle; 7. Sintering groove plate. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] refer to Figure 1-4 A tool for unloading cemented carbide bars during sintering, used in conjunction with a sintering tank plate 7, includes a fixing frame 1, multiple support ribs 2, an insertion / removal port 3, a limiting groove 4, a pull plate 5, and a handle 6. The fixing frame 1 can be placed on the sintering tank plate 7. The fixing frame 1 can be made of stainless steel plate and can be a square frame. It can cover the sintering tank plate 7, thereby firmly wrapping the sintering tank plate 7, facilitating the joint flipping of both, and together with the pull plate 5, restricting the cemented carbide bars inside the sintering tank plate 7 to ensure that they do not fall out, while only causing minimal displacement. Multiple support ribs 2 are evenly spaced within the fixing frame 1 to support the pull plate 5. The support ribs 2 can be made of stainless steel. The insertion port 3 penetrates one side of the fixing frame 1 for inserting and removing the pull plate 5. The limiting groove 4 is parallel to the insertion port 3 and located on the other side of the fixing frame 1 for interlocking with the pull plate 5. The pull plate 5 penetrates the insertion port 3 and interlocks with the limiting groove 4, thus forming a cover plate above the sintering tank plate 7, restricting the movement of the cemented carbide rod on the sintering tank plate 7. The pull plate 5 can be made of a smooth-surfaced hard plastic with a certain degree of flexibility, giving it both rigidity to restrict the displacement of the cemented carbide rod and flexibility for quick insertion and removal from the insertion port 3. A handle 6 is located on the pull plate 5 protruding outside the fixing frame 1 for easy operation of the pull plate 5.

[0028] In some embodiments, the fixing frame 1 includes a plug-in plate 11, a limiting plate 12, and two connecting plates 13. The plug-in plate 11 has a plug-in port 3 through it. The limiting plate 12 is arranged parallel to the plug-in plate 11. The limiting plate 12 has a limiting groove 4 on the side near the plug-in plate 11. The plug-in port 3 and the limiting groove 4 can realize the stable placement of the pull plate 5 on the fixing frame 1. The two connecting plates 13 are arranged between the plug-in plate 11 and the limiting plate 12, and multiple supporting ribs 2 are arranged parallel between the two connecting plates 13. The plug-in plate 11 and the limiting plate 12 are connected by the connecting plates 13 and the multiple supporting ribs 2 to form a stable fixing frame 1, so as to form a stable support structure.

[0029] In some embodiments, the cross-section of the connecting plate 13 is L-shaped, which can increase the connection area between the connecting plate 13 and the plug-in plate 11 and the limiting plate 12, thereby enhancing the structural strength of the fixing frame 1.

[0030] In some embodiments, the fixing frame 1 further includes a limiting baffle 14, which is connected to the connecting plate 13 and forms an insertion groove 15 with the connecting plate 13. The insertion groove 15 is inserted into the side wall of the sintering tank plate 7 so that the fixing frame 1 is covered on the sintering tank plate 7, thereby fixing the relative position of the fixing frame 1 and the sintering tank plate 7.

[0031] In some embodiments, the fixing frame 1 further includes a support plate 16, which is connected to the limiting baffle 14. A pull plate 5 is slidably provided on the two support plates 16 to support the pull plate 5 and guide the pull plate 5 to slide on the two support plates 16, so as to facilitate the insertion and engagement of the pull plate 5 with the limiting groove 4.

[0032] In some embodiments, the distance between the support rib 2 and the side of the connecting plate 13 away from the sintering tank plate 7 is 1-2 cm, which allows the cemented carbide bar to fall vertically 1-2 cm into the bottom of the unloading box, avoiding the cemented carbide bar from falling from a height and colliding with each other, thus preventing the problem of gaps, and ensuring the product qualification rate.

[0033] In some embodiments, the side of the support rib 2 closest to the sintering tank plate 7 is curved to reduce friction with the cemented carbide bar and facilitate the sliding of the cemented carbide bar.

[0034] The specific working principle is as follows:

[0035] In use, firstly, the fixing bracket 1 is placed on the sintering tank plate 7 and inserted into the side wall of the sintering tank plate 7 through the insertion slot 15 to fix the relative position of the fixing bracket 1 and the sintering tank plate 7. Then, the pull plate 5 is inserted from the insertion port 3, and the pull plate 5 is pushed by the handle 6 to slide on the support plate 16, so that one end of the pull plate 5 is inserted into the limiting slot 4. This allows the pull plate 5 to limit the hard alloy bar on the sintering tank plate 7.

[0036] Then, the whole thing is flipped over so that the carbide bar falls onto the drawer plate 5. The drawer plate 5 is pulled out from the fixed frame 1 by the handle 6. At this time, the carbide bar can fall into the box without collision. Since the falling distance is short, there is no or very little collision between the carbide bars, so no gaps are generated, thus ensuring the product qualification rate and improving the unloading efficiency.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tool for unloading sintered hard metal rod material from a sintering channel plate (7), characterized in that: Including fixed frame (1), the fixed frame (1) can cover be provided on the sintering groove plate (7); Multiple support ribs (2), multiple the support ribs (2) are equidistantly provided in the fixed frame (1); Plug-in mouth (3), the plug-in mouth (3) penetrates one side of the fixed frame (1); Limiting groove (4), the limiting groove (4) is provided on the other side of the fixed frame (1) parallel with the plug-in mouth (3); Pull-out plate (5), the pull-out plate (5) penetrates the plug-in mouth (3) and is inserted with the limiting groove (4) and cooperates.

2. A tool for debonding sintered cemented carbide rod material according to claim 1, characterised in that: The fixed frame (1) includes plug-in plate (11), the plug-in plate (11) is provided with the plug-in mouth (3) penetratingly on the plug-in plate (11); Limiting plate (12), the limiting plate (12) is provided parallel with the plug-in plate (11), and the limiting plate (12) is provided with the limiting groove (4) on the side close to the plug-in plate (11); Two connecting plates (13), two the connecting plates (13) are provided between the plug-in plate (11) and the limiting plate (12), and multiple the support ribs (2) are provided parallel between two the connecting plates (13).

3. A tool for debonding sintered cemented carbide rod material according to claim 2, c h a r a c t e r i s e d in that: The section of the connecting plate (13) is L-shaped.

4. A tool for debonding sintered cemented carbide rod material according to claim 3, characterized in that: The fixed frame (1) further includes limiting baffle (14), the limiting baffle (14) is connected with the connecting plate (13) and forms the insertion slot (15) with the connecting plate (13), and the insertion slot (15) is inserted with the side wall of the sintering groove plate (7) and cooperates.

5. A tool for debonding sintered cemented carbide rod material according to claim 4, characterized in that: The fixed frame (1) further includes supporting plate (16), the supporting plate (16) is connected with the limiting baffle (14), and two the supporting plate (16) is provided with the pull-out plate (5) slidingly on the supporting plate (16).

6. A tool for debonding sintered cemented carbide rod material according to claim 2, characterised in that: The distance between the support rib (2) and the side of the connecting plate (13) away from the sintering groove plate (7) is 1-2CM.

7. A tool for debonding sintered cemented carbide rod material according to claim 1, characterized in that: The side of the support rib (2) close to the sintering groove plate (7) is curved.

8. A tool for debonding sintered cemented carbide rod stock according to claim 1, characterized in that: Further including handle (6), the handle (6) is provided on the pull-out plate (5).

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