Equipment for stabilizing treatment of non-quenched and tempered steel bolt by using hot upsetting waste heat

Abstract

The utility model discloses equipment for stabilizing treatment of non-quenched and tempered steel bolts by using hot upsetting waste heat, which comprises a waste heat utilization furnace body, a first material conveying unit, a second material conveying unit, a hot upsetting waste heat utilization furnace body, a hot upsetting waste heat utilization furnace body, a hot upsetting waste heat utilization furnace body and a hot upsetting waste heat utilization furnace body, the first material inlet and the first material outlet are formed in the two ends of the first material conveying unit; the second material inlet and the second material outlet are formed in the two ends of the second material conveying unit. The first material outlet is connected with a first cooling tank, the second material inlet is connected with a cleaning tank, and the cleaning tank is connected with the first cooling tank. The second material outlet is connected with a second cooling tank, and the second cooling tank is connected with the first cooling tank. The second material outlet is connected with a blackening groove, and the blackening groove and the second cooling groove are arranged on the track in a sliding mode. And the 900 DEG C forging waste heat obtained after hot upsetting is used as a heat source for stabilizing the non-quenched and tempered steel bolt, and green low-carbon manufacturing of the non-quenched and tempered steel bolt is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener processing technical field, concretely is a kind of equipment for the stable treatment of hot upsetting residual heat for non-quenched and tempered steel bolt. BACKGROUND

[0002] Large specification hot upsetting nut (M30 above nut) process flow: bar stock→ blanking→ heating (to forging temperature range)→ forming→ natural cooling→ other processing.

[0003] Non-quenched and tempered steel fastener is 8.8 level or 10.9 level bolt screw stud and other fastener products using non-quenched steel, and the process flow of non-quenched and tempered steel fastener is: discing→ drawing modification→ cold upsetting forming and wire drawing→ cleaning and stabilization treatment (200-510 DEG C)→ other processing.

[0004] After large specification fastener (bolt or nut) hot upsetting processing, there is still nearly 900 DEG C forging residual heat.Natural cooling is too slow, which leads to low efficiency, and the heat energy cannot be effectively utilized.

[0005] Therefore, the present application uses 900 DEG C forging residual heat after hot upsetting processing as heat source to treat the stabilization treatment of non-quenched and tempered steel bolt, to realize green and low-carbon manufacturing of non-quenched and tempered steel bolt. SUMMARY

[0006] The utility model discloses a kind of equipment for the stable treatment of hot upsetting residual heat for non-quenched and tempered steel bolt, to use 900 DEG C forging residual heat after hot upsetting processing as heat source to treat the stabilization treatment of non-quenched and tempered steel bolt, to realize green and low-carbon manufacturing of non-quenched and tempered steel bolt.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of equipment for the stable treatment of hot upsetting residual heat for non-quenched and tempered steel bolt, comprising:

[0008] Residual heat utilization furnace body, its inside is provided with conveying belt, the conveying belt includes first material conveying unit and second material conveying unit;

[0009] First material inlet and first material outlet, are set to the both ends of first material conveying unit;

[0010] Second material inlet and second material outlet, are set to the both ends of second material conveying unit.

[0011] As further improvement of the above technical scheme:

[0012] The first material outlet is connected with a first cooling tank, wherein the connection means that the first material outlet can transport the material to the first cooling tank, and a conveying line or natural falling mode can be used; the second material inlet is connected with a cleaning tank, wherein the connection means that the cleaning tank transports the material to the second material inlet through a conveying line; and the cleaning tank is connected with the first cooling tank, wherein the connection means that the cleaning tank and the first cooling tank are connected through a pipeline, and the heated liquid in the first cooling tank can enter the cleaning tank, and the implementation can be realized through the combination of the pipeline and the water pump.

[0013] The second material outlet is connected with a second cooling tank, and the second cooling tank is connected with the first cooling tank.

[0014] The second material outlet is connected with a blackening tank, and the blackening tank and the second cooling tank are slidingly arranged on a track.

[0015] A direct blowing fan is arranged on the waste heat utilization furnace body, and the direct blowing fan is used for blowing external air into the cold part to reduce the temperature.

[0016] A circulating fan is arranged on the waste heat utilization furnace body, one end of the circulating fan is connected with the first material conveying unit, and the other end of the circulating fan is connected with the second material conveying unit.

[0017] The first material conveying unit and the second material conveying unit are arranged in opposite directions.

[0018] The first material conveying unit and the second material conveying unit are arranged in opposite directions.

[0019] Compared with the prior art, the utility model has the advantages of:

[0020] High energy utilization, green and environmental protection: by utilizing the natural cooling heat dissipation of the hot upsetting workpiece as a heat source, the secondary utilization of heat energy is realized, the energy utilization efficiency is greatly improved, and the production cost is reduced.

[0021] Stable product quality: through temperature control cooling and preheating treatment, the stabilization treatment quality of the non-quenched and tempered steel bolt is ensured, and the consistency and reliability of the product are improved.

[0022] Multi-functional integration: the device integrates multiple functions such as cooling, cleaning, preheating, blackening treatment, etc., realizes continuous operation of multiple processes, and simplifies the production process.

[0023] Flexible switching: the residual heat blackening work after the stabilization treatment of the non-quenched and tempered steel bolt and the simple cooling are quickly switched, and various production requirements are adapted.

[0024] Accurate temperature control: through the cooperation of the direct blowing fan and the circulating fan, the accurate temperature control of the hot upsetting bolt and the non-quenched and tempered steel bolt is realized, and the treatment effect is guaranteed.

[0025] In summary, the utility model has remarkable advantages in improving production efficiency, guaranteeing product quality, saving energy and protecting environment, etc., and provides an efficient, environmentally friendly and energy-saving solution for the stabilization treatment of non-quenched and tempered steel bolts. The utility model reasonably utilizes the residual heat of hot upsetting, realizes green and low-carbon manufacturing. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 It is one of the appearance structure schematic diagrams of the utility model;

[0027] Fig. 2 It is the second appearance structure schematic diagram of the utility model;

[0028] Fig. 3 It is the structure schematic diagram of the residual heat utilization furnace body without the utility model.

[0029] Reference signs: 1, residual heat utilization furnace body; 11, first material inlet; 12, first material outlet; 13, second material inlet; 14, second material outlet; 15, direct blowing fan; 16, circulating fan; 2, conveying belt; 21, first material conveying unit; 22, second material conveying unit; 31, first cooling tank; 32, cleaning tank; 33, second cooling tank; 34, blackening tank; 35, track. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating orientation or position, are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figs. 1 to 3 As shown, the equipment for stabilizing non-quenched and tempered steel bolts using hot upsetting waste heat in this embodiment includes:

[0035] The waste heat recovery furnace body 1 has a conveyor belt 2 inside, which includes a first material conveying unit 21 and a second material conveying unit 22. In this embodiment, the first material conveying unit 21 and the second material conveying unit 22 move in opposite directions. The first material conveying unit 21 and the second material conveying unit 22 are arranged vertically. In this application, the first material conveying unit 21 is located at the lower part, and the second material conveying unit 22 is located at the upper part. The first material conveying unit 21 and the second material conveying unit 22 are perforated conveying lines. The perforated conveying lines are mesh belts, specifically one or more of the following: spiral mesh belts, Z-shaped mesh belts, or through-rod balance mesh belts. In this embodiment, the first material conveying unit 21 is used to convey hot-forged bolts, and the second material conveying unit 22 is used to convey non-adjustable steel bolts. The material here can be bolts or nuts, and can be any material that has undergone hot forging or low-temperature heat treatment and has a large temperature difference.

[0036] In the embodiment, the first material inlet 11 and the first material outlet 12 are arranged at two ends of the first material conveying unit 21; the second material inlet 13 and the second material outlet 14 are arranged at two ends of the second material conveying unit 22.

[0037] The first material outlet 12 is connected with the first cooling tank 31, and the second material inlet 13 is connected with the cleaning tank 32, which is connected with the first cooling tank 31.

[0038] The second material outlet 14 is connected with the second cooling tank 33, which is connected with the first cooling tank 31.

[0039] The second material outlet 14 is connected with the blackening tank 34, and the blackening tank 34 and the second cooling tank 33 are slidingly arranged on the track 35. A conveying line is arranged in each tank body, which is commonly named as a mesh belt soaking cleaning conveying line, and is used for soaking cleaning and conveying materials.

[0040] It should be noted that, in the embodiment, the conveying belt 2 is a set of circulating conveying lines, that is, the upper outer belt body is the second material conveying unit 22, and the lower inner belt body is the first material conveying unit 21. Alternatively, two sets of circulating conveying lines can be arranged.

[0041] The waste heat utilization furnace body 1 is provided with a direct blowing fan 15. The direct blowing fan 15 is used for blowing external cold air into the waste heat utilization furnace body 1 to cool the hot upsetting bolt. The direct blowing fan 15 can be installed on the top, top or side of the furnace body.

[0042] The waste heat utilization furnace body 1 is provided with a circulating fan 16, one end of which is connected with the first material conveying unit 21, and the other end of which is connected with the second material conveying unit 22. The circulating fan 16 is used for circulating the heat in the furnace body, and blowing the heat of the hot upsetting bolt to the non-quenched and tempered steel bolt.

[0043] In use, the hot upsetting bolt is sent from the first material inlet 11 into the first material conveying unit 21, so that the temperature of the hot upsetting bolt is reduced from about 900℃ to 300-400℃, and then the hot upsetting bolt enters the first cooling tank 31 from the first material outlet 12. The waste heat in the cooling process heats the liquid, which is conveyed into the cleaning tank 32 through a pipeline.

[0044] The non-quenched steel bolt is fed by the feeding machine, first enters the cleaning tank 32, and is preheated due to the rising of the water temperature of the cleaning tank 32. The non-quenched steel bolt is transported by the mesh belt soaking type cleaning conveying line, is conveyed to the second material inlet 13, enters the second material conveying unit 22, and is heat exchanged in the furnace body. Then the non-quenched steel bolt is discharged from the second material outlet 14, can be cooled or is blackened, and can slide through the corresponding groove of the track 35. The second cooling tank 33 is used for cooling the non-quenched steel bolt, and the cooling water is heated in the process. The heated cooling water is pumped into the cleaning tank 32 through a pipeline and a water pump or is heated through the first cooling tank 31 and then enters the cleaning tank 32. The non-quenched steel bolt is blackened, and the blackening tank 34 is added with a suitable proportion of residual heat blackening agent solution. The residual heat blackening tank is independent and does not communicate with other tanks.

[0045] In other embodiments, the arrangement of the conveying belt 2 is mainly as follows: the first material conveying unit 21 and the second material conveying unit 22 are arranged on the left and right sides, that is, are in the same plane.

[0046] The utility model discloses a heat source with the workpiece after hot upsetting of 900 DEG C above temperature is as heat source, and natural cooling is changed to temperature control cooling. The hot upsetting nut after cooling is as heat source to heat cleaning water, and the non-quenched steel bolt preheating and cleaning oil removal are realized through the cleaning water. The whole line can realize automation, can realize automatic temperature control, automatic control non-quenched steel furnace output, and the non-quenched steel stabilization treatment is all hot upsetting residual heat. The residual heat blackening work after the stabilization treatment of the non-quenched steel bolt and the rapid switching of simple cooling are realized. The whole set of equipment has the characteristics of simple structure, efficient production and green energy saving.

[0047] The above-mentioned is only the embodiment of the utility model, and the well-known specific structure and characteristics in the scheme are not described too much. For those skilled in the art, obviously, the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiment should be regarded as exemplary and non-restrictive, and the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

Claims

1. Equipment for stabilizing non-quenched and tempered steel bolts using waste heat from hot upsetting, characterized in that, include: Waste heat utilization furnace body (1) is provided with a conveyor belt (2) inside, the conveyor belt (2) includes a first material conveying unit (21) and a second material conveying unit (22); The first material inlet (11) and the first material outlet (12) are located at both ends of the first material conveying unit (21); The second material inlet (13) and the second material outlet (14) are located at both ends of the second material conveying unit (22).

2. The equipment for stabilizing non-quenched and tempered steel bolts using hot upsetting waste heat according to claim 1, characterized in that: The first material outlet (12) is connected to a first cooling tank (31), and the second material inlet (13) is connected to a cleaning tank (32), wherein the cleaning tank (32) is connected to the first cooling tank (31).

3. The equipment for stabilizing non-quenched and tempered steel bolts using hot upsetting waste heat according to claim 1, characterized in that: The second material outlet (14) is connected to a second cooling tank (33), which is connected to the first cooling tank (31).

4. The equipment for stabilizing non-quenched and tempered steel bolts using hot upsetting waste heat according to claim 3, characterized in that: The second material outlet (14) is connected to a blackening tank (34), and the blackening tank (34) and the second cooling tank (33) are slidably disposed on the track (35).

5. The equipment for stabilizing non-quenched and tempered steel bolts using hot upsetting waste heat according to claim 1, characterized in that: A direct blower (15) is installed on the waste heat utilization furnace body (1).

6. The equipment for stabilizing non-quenched and tempered steel bolts using hot upsetting waste heat according to claim 1, characterized in that: The waste heat utilization furnace body (1) is equipped with a circulating fan (16), one end of which is connected to the first material conveying unit (21), and the other end is connected to the second material conveying unit (22).

7. The equipment for stabilizing non-quenched and tempered steel bolts using hot upsetting waste heat according to claim 1, characterized in that: The first material conveying unit (21) and the second material conveying unit (22) move in opposite directions.

8. The equipment for stabilizing non-quenched and tempered steel bolts using hot upsetting waste heat according to claim 1, characterized in that: The first material conveying unit (21) and the second material conveying unit (22) are arranged vertically or horizontally.

9. The equipment for stabilizing non-quenched and tempered steel bolts using hot upsetting waste heat according to claim 1, characterized in that: The first material conveying unit (21) and the second material conveying unit (22) are hollow conveying lines.

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