Sintering furnace feeding device for powder metallurgy products

Abstract

The utility model belongs to the technical field of sintering furnaces, and particularly relates to a sintering furnace feeding device for powder metallurgy products. The sintering furnace comprises a sintering furnace main body. In the using process, blanks to be sintered are placed in the blank placement seat until the blanks are filled, at the moment, the lowest row of blanks can enter the row-by-row synchronous feeding assembly, the discharging part of the vertical discharging part and the blanks placed in the row-by-row synchronous feeding assembly are arranged in a staggered mode, and in the feeding process, the blanks are placed in the row-by-row synchronous feeding assembly in a staggered mode. During feeding, the lifting inner table is moved downwards by a certain distance, so that the feeding falling distance is shortened, the situation that blanks are damaged during feeding is avoided, the row-by-row synchronous feeding assembly is horizontally moved during feeding, the blanks located in the row-by-row synchronous feeding assembly are fed into the vertical discharging piece, and uniform feeding is conducted through the vertical discharging piece; a plurality of blanks can be uniformly arranged on the mesh belt of the sintering furnace, a plurality of blanks can be fed at one time and are kept at uniform intervals, the sintering effect is better, the intensity of manual arrangement is greatly reduced, and the automation degree is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of sintering furnaces and relates to a sintering furnace feeding device for powder metallurgy products. Background Art

[0002] The sintering of powder metallurgy products is to put the pressed powder metallurgy product blanks into a sintering furnace with a temperature lower than the melting point of the main components for hardening. At present, the industry generally uses mesh belt ammonia atmosphere protection sintering furnaces to sinter or degrease and sinter powder metallurgy products. This sintering furnace is mainly composed of a feeding area, a sintering area, a cooling area, a liquid ammonia tank, a liquid ammonia decomposition furnace and a bracket. The existing sintering furnace feeding device generally manually places the embryos one by one on the sintering furnace mesh belt. This method is difficult to ensure uniform spacing between the embryos, and it is easy to appear adjacent or too small, affecting the sintering effect. Manual arrangement is time-consuming and laborious. Therefore, it is urgent to design a sintering furnace feeding device for powder metallurgy products that can overcome the above defects.

[0003] In order to overcome the shortcomings of the prior art, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses a feeding device for a vacuum hot pressing sintering furnace [application number: 202321213099.4], which includes a base, a group of support seats are fixedly installed on the left and right parts of the lower end of the base, the two groups of support seats are symmetrically distributed on the left and right, and each group is set to two, two support plates are fixedly installed on the upper end of the base, the two support plates are symmetrically distributed on the left and right, a fixed seat is fixedly installed on the left front of the upper end of the base, and a conveying component is fixedly installed on the fixed seat and the support plate. Summary of the invention

[0004] The utility model aims to solve the above problems and provides a feeding device for a sintering furnace used for powder metallurgy products.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A feeding device for a sintering furnace for powder metallurgy products comprises a sintering furnace main body, a feeding conveyor belt is arranged in the sintering furnace main body, a fixed frame is arranged at the feeding port of the sintering furnace main body, a lifting inner platform which can reciprocate linearly in a vertical direction is arranged in the fixed frame, a body placement seat for placing multiple bodies is arranged in the lifting inner platform, a row-by-row synchronous feeding assembly which can reciprocate linearly in a horizontal direction is arranged below the body placement seat, a vertical discharge piece is arranged below the row-by-row synchronous feeding assembly, and the row-by-row synchronous feeding assembly is located between the body placement seat and the vertical discharge piece.

[0007] In the above-mentioned sintering furnace feeding device for powder metallurgy products, the row-by-row synchronous feeding assembly includes a row-by-row feeding receiving slide plate arranged below the embryo placement seat, and a plurality of feeding receiving chambers are arranged in the row-by-row feeding receiving slide plate, and the feeding receiving chambers pass through the row-by-row feeding receiving slide plate.

[0008] In the above-mentioned feeding device for a sintering furnace for powder metallurgy products, a plurality of placement chambers are provided in the embryo placement seat, and the number of the placement chambers is the same as the number of the feeding receiving chambers.

[0009] In the above-mentioned sintering furnace feeding device for powder metallurgy products, a first linear drive is provided in the lifting inner platform, and a power shaft of the first linear drive is connected to the row-by-row feeding receiving slide plates.

[0010] In the above-mentioned sintering furnace feeding device for powder metallurgy products, the vertical discharge member includes a bottom discharge plate arranged in the lifting inner platform, and a plurality of discharge cavities are provided in the bottom discharge plate, and the number of the discharge cavities is consistent with that of the feeding receiving chamber.

[0011] In the above-mentioned feeding device for a sintering furnace for powder metallurgy products, the depth of the placement chamber is greater than the depth of the feeding receiving chamber.

[0012] In the above-mentioned sintering furnace feeding device for powder metallurgy products, the lifting inner platform is provided with a discharge space, and the embryo placement seat, the row-by-row feeding receiving slide plate and the bottom discharge plate are located in the discharge space.

[0013] In the above-mentioned sintering furnace charging device for powder metallurgy products, a second linear drive is provided on the top of the sintering furnace body, and the second linear drive is connected to the lifting inner platform.

[0014] In the above-mentioned sintering furnace charging device for powder metallurgy products, a spring is provided between the fixed frame and the lifting inner platform.

[0015] In the above-mentioned sintering furnace charging device for powder metallurgy products, the bottom of the fixed frame body has an inner platform receiving portion.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. During the use of the utility model, the embryos to be sintered are placed in the embryo placement seat until it is filled. At this time, the embryos in the lowest row will enter the row-by-row synchronous feeding assembly. The discharge part of the vertical discharge piece is staggered with the embryos placed in the row-by-row synchronous feeding assembly. During the feeding process, the lifting inner platform is first moved down by one end to shorten the feeding falling distance to avoid damaging the embryos during feeding. When feeding, the row-by-row synchronous feeding assembly is moved horizontally, and the embryos located in the row-by-row synchronous feeding assembly are put into the vertical discharge piece. The vertical discharge piece is used for uniform feeding, and multiple embryos can be evenly arranged on the mesh belt of the sintering furnace, so that multiple embryos can be fed at one time with uniform intervals, and the sintering effect is better. The intensity of manual arrangement is greatly reduced, and the degree of automation is high.

[0018] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a partial cross-sectional schematic diagram of the utility model.

[0021] In the figure: sintering furnace body 1, feeding conveyor belt 2, fixed frame 3, lifting inner platform 4, embryo placement seat 5, row-by-row synchronous feeding assembly 6, vertical discharge piece 7, row-by-row feeding receiving slide plate 8, feeding receiving chamber 9, placement chamber 10, first linear drive 11, bottom discharge plate 12, discharge cavity 13, discharge space 14, second linear drive 15, spring 16, inner platform receiving part 17. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] like Figure 1 , Figure 2 As shown, a feeding device for a sintering furnace for powder metallurgy products comprises a sintering furnace main body 1, a feeding conveyor belt 2 is arranged in the sintering furnace main body 1, a fixed frame 3 is arranged at the feeding port of the sintering furnace main body 1, a lifting inner platform 4 which can reciprocate linearly in a vertical direction is arranged in the fixed frame 3, an embryo placement seat 5 for placing multiple embryos is arranged in the lifting inner platform 4, a row-by-row synchronous feeding component 6 which can reciprocate linearly in a horizontal direction is arranged below the embryo placement seat 5, a vertical discharge piece 7 is arranged below the row-by-row synchronous feeding component 6, and the row-by-row synchronous feeding component 6 is located between the embryo placement seat 5 and the vertical discharge piece 7.

[0024] In this embodiment, during use, the embryos to be sintered are placed in the embryo placement seat 5 until it is filled. At this time, the embryos in the bottom row will enter the row-by-row synchronous feeding assembly 6, and the discharge portion of the vertical discharge piece 7 is staggered with the embryos placed in the row-by-row synchronous feeding assembly 6. During the feeding process, the lifting inner platform 4 is first moved down one end distance to shorten the feeding falling distance to avoid damaging the embryos during feeding. When feeding, the row-by-row synchronous feeding assembly 6 is moved horizontally, and the embryos located in the row-by-row synchronous feeding assembly 6 are put into the vertical discharge piece 7. The vertical discharge piece 7 is used for uniform feeding, and multiple embryos can be evenly arranged on the sintering furnace mesh belt, so that multiple embryos can be fed at one time with uniform intervals, and the sintering effect is better. The intensity of manual arrangement is greatly reduced, and the degree of automation is high.

[0025] Combination Figure 1 , Figure 2 As shown, the row-by-row synchronous feeding component 6 includes a row-by-row feeding receiving slide plate 8 arranged below the embryo placement seat 5, and a plurality of feeding receiving chambers 9 are arranged in the row-by-row feeding receiving slide plate 8, and the feeding receiving chambers 9 pass through the row-by-row feeding receiving slide plate 8.

[0026] Specifically, during use, the embryos to be sintered are placed in the embryo placement seat 5 until it is full. At this time, the embryos in the bottom row will enter the feeding receiving chamber 9 in the feeding receiving slide plate 8 row by row.

[0027] Combination Figure 1 , Figure 2 As shown, a plurality of placement chambers 10 are provided in the embryo placement seat 5 , and the number of the placement chambers 10 is the same as the number of the material receiving chambers 9 .

[0028] In this embodiment, the placement chamber 10 is used to place a plurality of embryos, so that multiple materials can be put into the sintering furnace without manual operation, thereby improving safety.

[0029] A first linear drive 11 is disposed in the inner lifting platform 4 , and a power shaft of the first linear drive 11 is connected to the row-by-row feeding receiving slide plates 8 .

[0030] In this embodiment, the row-by-row material receiving slide plates 8 are driven by the first linear drive 11, and the degree of automation is relatively high.

[0031] Combination Figure 1 As shown, the vertical discharge member 7 includes a bottom discharge plate 12 arranged in the lifting inner platform 4, and a plurality of discharge cavities 13 are arranged in the bottom discharge plate 12, and the number of the discharge cavities 13 is consistent with that of the feeding receiving chamber 9.

[0032] In this embodiment, before feeding, the bottom embryo enters into the feeding receiving chamber 9. At this time, the feeding receiving chamber 9 and the discharging cavity 13 are staggered, and the embryo will not fall. When feeding, the feeding receiving slide plate 8 is moved to the left row by row to align the feeding receiving chamber 9 with the discharging cavity 13. At this time, the embryo can fall automatically without manual operation, and the degree of automation is high.

[0033] The depth of the placement chamber 10 is greater than the depth of the material receiving chamber 9 .

[0034] In this embodiment, the depth of the placement chamber 10 is greater than the depth of the material receiving chamber 9 , and a plurality of embryos can be placed in each placement chamber 10 .

[0035] The lifting inner platform 4 has a material discharge space 14 in it, and the embryo body placement seat 5 , the row-by-row material feeding receiving slide plate 8 and the bottom material discharge plate 12 are located in the material discharge space 14 .

[0036] In this embodiment, the material discharge space 14 is used to accommodate the embryo placement seat 5, the row-by-row material receiving slide plate 8 and the bottom material discharge plate 12.

[0037] Combination Figure 1 As shown, a second linear drive 15 is provided on the top of the sintering furnace body 1 , and the second linear drive 15 is connected to the lifting inner platform 4 .

[0038] In this embodiment, the lifting inner platform 4 is driven by the second linear drive 15, and the degree of automation is relatively high. The downward movement of the lifting inner platform 4 can shorten the falling distance of the feeding material, thereby preventing the embryo from being damaged when feeding the material.

[0039] Combination Figure 1 As shown, a spring 16 is provided between the fixed frame 3 and the lifting inner platform 4 .

[0040] In this embodiment, the spring 16 can play a buffering role on the bottom of the lifting inner platform 4 to prevent the lifting inner platform 4 from having a hard collision with the fixed frame 3.

[0041] Combination Figure 1 As shown, the bottom of the fixed frame 3 has an inner platform receiving portion 17.

[0042] In this embodiment, the inner platform receiving portion 17 plays a role in supporting the lifting inner platform 4 to avoid the lack of bottom support of the lifting inner platform 4;

[0043] Those skilled in the art should understand that the first linear drive 11 and the second linear drive 15 can be selected from air cylinders, oil cylinders and linear drives.

[0044] The working principle of the utility model is:

[0045] During use, the embryos to be sintered are placed in the embryo placement seat 5 until it is filled. At this time, the embryos in the bottom row will enter the feeding receiving chamber 9 in the row-by-row feeding receiving slide plate 8. At this time, the feeding receiving chamber 9 and the discharge cavity groove 13 are arranged alternately, and the embryos will not fall. During the feeding process, the lifting inner platform 4 is first moved down one end distance to shorten the feeding falling distance to avoid damaging the embryos during feeding. When feeding, the feeding receiving slide plate 8 is moved to the left row by row to align the feeding receiving chamber 9 with the discharge cavity groove 13. At this time, the embryos can fall automatically without manual operation. The degree of automation is high, and multiple embryos can be evenly arranged on the sintering furnace mesh belt, so that multiple embryos can be fed at a time and the intervals are evenly maintained, the sintering effect is better, the intensity of manual arrangement is greatly reduced, and the degree of automation is high.

[0046] The placement chamber 10 is used to place multiple embryos, which can realize multiple material input without manually placing the embryos one by one into the sintering furnace, thereby improving safety.

[0047] The row-by-row feeding receiving slide 8 is driven by the first linear drive 11, and the degree of automation is high.

[0048] The depth of the placement chamber 10 is greater than the depth of the feeding receiving chamber 9. Multiple embryos can be placed in each placement chamber 10.

[0049] The material discharge space 14 is used to accommodate the embryo placement seat 5, the row-by-row material receiving slide plate 8 and the bottom discharge plate 12.

[0050] The lifting inner platform 4 is driven by the second linear drive 15, and has a high degree of automation. The downward movement of the lifting inner platform 4 can shorten the falling distance of the feeding material, thereby preventing the feeding material from damaging the embryo body.

[0051] The spring 16 can buffer the bottom of the lifting inner platform 4 to prevent the lifting inner platform 4 from having a hard collision with the fixed frame 3.

[0052] The inner platform receiving portion 17 supports the lifting inner platform 4 to prevent the lifting inner platform 4 from lacking bottom support.

[0053] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the spirit of the present invention.

[0054] Although this article uses more terms such as sintering furnace body 1, feeding conveyor belt 2, fixed frame 3, lifting inner platform 4, embryo placement seat 5, row-by-row synchronous feeding assembly 6, vertical discharge member 7, row-by-row feeding receiving slide plate 8, feeding receiving chamber 9, placement chamber 10, first linear drive 11, bottom discharge plate 12, discharge cavity 13, discharge space 14, second linear drive 15, spring 16, inner platform receiving part 17, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model, and interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A feeding device for a sintering furnace for powder metallurgy products, comprising a sintering furnace body (1), wherein a feeding conveyor belt (2) is arranged inside the sintering furnace body (1), characterized in that: A fixed frame (3) is provided at the feed inlet of the sintering furnace body (1), a lifting inner platform (4) capable of reciprocating linear motion in a vertical direction is provided inside the fixed frame (3), a body placement seat (5) for placing a plurality of embryos is provided inside the lifting inner platform (4), a row-by-row synchronous feeding assembly (6) capable of reciprocating linear motion in a horizontal direction is provided below the embryo placement seat (5), a vertical discharge piece (7) is provided below the row-by-row synchronous feeding assembly (6), and the row-by-row synchronous feeding assembly (6) is located between the embryo placement seat (5) and the vertical discharge piece (7).

2. The feeding device for a sintering furnace for powder metallurgy products according to claim 1, characterized in that: The row-by-row synchronous feeding assembly (6) comprises a row-by-row feeding receiving slide plate (8) arranged below the embryo placement seat (5), wherein a plurality of feeding receiving chambers (9) are arranged in the row-by-row feeding receiving slide plate (8), and the feeding receiving chambers (9) pass through the row-by-row feeding receiving slide plate (8).

3. The feeding device for a sintering furnace for powder metallurgy products according to claim 2, characterized in that: A plurality of placement chambers (10) are arranged in the embryo placement seat (5), and the number of the placement chambers (10) is the same as the number of the material receiving chambers (9).

4. A feeding device for a sintering furnace for powder metallurgy products according to claim 3, characterized in that: A first linear drive (11) is provided in the lifting inner platform (4), and a power shaft of the first linear drive (11) is connected to the row-by-row feeding receiving slide plates (8).

5. The feeding device for a sintering furnace for powder metallurgy products according to claim 4, characterized in that: The vertical discharge member (7) comprises a bottom discharge plate (12) arranged in the lifting inner platform (4), wherein the bottom discharge plate (12) is provided with a plurality of discharge cavities (13), and the number of the discharge cavities (13) is consistent with the number of the feeding receiving chamber (9).

6. The feeding device for a sintering furnace for powder metallurgy products according to claim 5, characterized in that: The depth of the placement chamber (10) is greater than the depth of the material receiving chamber (9).

7. A feeding device for a sintering furnace for powder metallurgy products according to claim 6, characterized in that: The lifting inner platform (4) has a material discharge space (14), and the embryo placement seat (5), the row-by-row material receiving slide plate (8) and the bottom discharge plate (12) are located in the material discharge space (14).

8. The feeding device for a sintering furnace for powder metallurgy products according to claim 7, characterized in that: A second linear drive (15) is provided on the top of the sintering furnace body (1), and the second linear drive (15) is connected to the lifting inner platform (4).

9. The feeding device for a sintering furnace for powder metallurgy products according to claim 8, characterized in that: A spring (16) is provided between the fixed frame (3) and the lifting inner platform (4).

10. A feeding device for a sintering furnace for powder metallurgy products according to claim 9, characterized in that: The bottom of the fixed frame (3) is provided with an inner platform receiving portion (17).

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