Full-automatic heat treatment equipment for screws

Abstract

The utility model discloses full-automatic heat treatment equipment for screws, which comprises first rotating rollers, a grating, a second rotating roller, a quenching tank, a collecting pipe, a compressor, a support beam, a controller and a flow dividing pipe, the grating is arranged in the quenching tank, the first rotating rollers are arranged on two sides of the upper surface of the grating, the second rotating roller is arranged on the upper surface of the grating, and the compressor is arranged on the second rotating roller. One end of the first rotating roller and one end of the second rotating roller are both connected with servo motors, a compressor is installed on the upper surface of the bottom support, a controller is arranged on one side of the compressor, a collecting pipe and a flow dividing pipe are arranged on the outer walls of the two sides of the quenching tank correspondingly, and a cooling pipe penetrating through the interior of the quenching tank is connected between the collecting pipe and the flow dividing pipe; and temperature sensors are embedded in the inner walls of the two sides of the upper end of the quenching tank. According to the screw quenching device, heated screws can be continuously conveyed through the grating, continuous quenching treatment can be carried out in the quenching tank, meanwhile, quenching oil in the quenching tank can be cooled, and the situation that the quenching effect is affected due to the fact that the oil quenching temperature is too high is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of screw processing, in particular to a full-automatic heat treatment device for screws. Background Art

[0002] Metal heat treatment is one of the important processes in mechanical manufacturing. Heat treatment generally does not change the shape and overall chemical composition of the workpiece, but rather changes the internal microstructure of the workpiece or the chemical composition of the workpiece surface to give or improve the performance of the workpiece. Its characteristic is to improve the intrinsic quality of the workpiece, which is generally not visible to the naked eye. In order to make the metal workpiece have the required mechanical properties, physical properties and chemical properties, in addition to the reasonable selection of materials and various forming processes, heat treatment processes are often indispensable. Steel is the most widely used material in the machinery industry. The microstructure of steel is complex and can be controlled by heat treatment.

[0003] In the process of screw production, in order to make the screws have better mechanical properties, the screws need to undergo necessary heat treatment processes, and quenching process is also a commonly used heat treatment measure.

[0004] After extensive searching, the prior art was found: Publication No. CN109487067A discloses a fully automatic heat treatment device for screws, including a sealed furnace body, a furnace pressure control mechanism, a furnace temperature control mechanism and a screw fixing mechanism. The present invention enables the heat treatment device to monitor the condition of the screws in real time during the heat treatment process, and automatically make targeted temperature and pressure adjustments as needed, so that the heat treatment quality of the screws is better and more stable, with a high degree of automation and high production efficiency, which is conducive to reducing costs.

[0005] Another example: Publication number CN219449773U discloses a quenching device for screw production that is easy to load and unload, including a main body and a first conveyor belt, a fan is fixedly placed above the main body, a cover plate is connected to the side of the main body, automatic sensing doors are provided at the feed port and the discharge port of the main body, the first conveyor belt is connected to the second conveyor belt, the second conveyor belt is connected to the third conveyor belt, a quenching medium is provided below the main body, and a stirring paddle is connected to the bottom of the main body. The utility model can realize automatic quenching of screws through the first conveyor belt, the second conveyor belt, the third conveyor belt and the automatic sensing door, so that the screws can be automatically loaded and unloaded, saving time and labor, and through the fan, stirring paddle and heat exchanger, the stability of the internal quenching medium temperature can be guaranteed, and the quenching effect of the screws can be guaranteed.

[0006] To sum up, the existing screw heat treatment equipment will be affected by the special shape of the screws, which is not conducive to continuous transmission and heat treatment, resulting in low heat treatment efficiency. In addition, during quenching treatment, most of the existing quenching methods use oil quenching. When the screws are continuously quenched, the temperature of the screws is transferred to the quenching oil, which will cause the temperature of the quenching oil to rise. The lack of effective temperature control measures will affect the subsequent screw quenching treatment effect. Utility Model Content

[0007] The purpose of the utility model is to provide a fully automatic heat treatment device for screws to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully automatic heat treatment equipment for screws, comprising a first roller, a grille, a second roller, a quenching tank, a manifold, a compressor, a support beam, a controller and a shunt pipe, wherein the quenching tank is provided with equidistantly distributed grilles, one side of the quenching tank is provided with an input slot, and the other side of the quenching tank is provided with a discharge slot, the first rollers are symmetrically arranged on both sides of the upper surface of the grille, the second roller is arranged at the middle position of the upper surface of the grille, the first roller and the second roller pass through one end of the quenching tank and are connected to a servo motor, a bottom bracket is installed on the lower surface of the quenching tank, a compressor is installed on the upper surface of the bottom bracket, and a controller is arranged on one side of the compressor, the outer walls on both sides of the quenching tank are respectively provided with a manifold and a shunt pipe, a cooling pipe passing through the inside of the quenching tank is connected between the manifold and the shunt pipe, and temperature sensors are embedded and installed on the inner walls on both sides of the upper end of the quenching tank.

[0009] Preferably, two ends of the grille are respectively placed inside the input trough and the discharge trough.

[0010] Preferably, a bracket is provided on the lower surface of the grille, and a support beam is connected to the lower end of the bracket, and the inner walls on both sides of the quenching tank are connected to the support beam.

[0011] Preferably, delivery pipes connected to the confluence pipe and the diversion pipe are respectively provided at both ends of the compressor.

[0012] Preferably, the compressor, temperature sensor and servo motor are all electrically connected to the controller.

[0013] Preferably, the surface of the cooling tube is provided with evenly distributed fins.

[0014] Preferably, the surfaces of the first roller and the second roller are both provided with paddles which are equidistant and distributed in a circular array, and the paddles are interspersed between the grids.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: during actual use of the utility model, the heated screws are continuously transmitted to the input slot and fall on the surface of the grille. The pointed part of the screw will pass through the gap between the grilles, and driven by the paddle on the surface of the first roller, it will slide along the grille and enter the quenching tank. After contacting the quenching oil in the quenching tank, the quenching treatment of the screw is realized. The paddle on the surface of the first roller and the second roller can speed up the transmission speed of the screw in the grille to avoid blockage. At the same time, during the quenching process, the temperature sensor monitors the temperature of the quenching oil in real time, and transports the cooling medium to the cooling pipe through the compressor. The quenching oil is cooled by the fins on the surface of the cooling pipe, so that the quenching oil maintains a constant temperature, avoiding the problem of excessive temperature of the quenching oil during continuous quenching treatment, and effectively ensuring the effect of the screw quenching treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 It is a side sectional structural schematic diagram of the utility model;

[0018] Figure 3 It is a partial side view structural schematic diagram of the second rotating roller of the utility model;

[0019] Figure 4 This is a schematic diagram of the partial appearance structure of the second rotating roller of the utility model;

[0020] Figure 5 This is a schematic diagram of the cooling pipe distribution structure of the utility model.

[0021] In the figure: 1. input trough; 2. first roller; 3. grille; 4. second roller; 5. quenching trough; 6. bracket; 7. temperature sensor; 8. discharge trough; 9. manifold; 10. cooling pipe; 11. fin; 12. bottom support; 13. compressor; 14. support beam; 15. controller; 16. conveying pipe; 17. diverter pipe; 18. servo motor; 19. paddle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5The utility model provides an embodiment: a fully automatic heat treatment equipment for screws, including a first roller 2, a grid 3, a second roller 4, a quenching tank 5, a manifold 9, a compressor 13, a support beam 14, a controller 15 and a shunt pipe 17. The quenching tank 5 is provided with equidistantly distributed grids 3, one side of the quenching tank 5 is provided with an input tank 1, and the other side of the quenching tank 5 is provided with a discharge tank 8, and the two ends of the grid 3 are respectively placed inside the input tank 1 and the discharge tank 8. The lower surface of the grid 3 is provided with a bracket 6, and the lower end of the bracket 6 is connected to the support beam 14, and the inner walls on both sides of the quenching tank 5 are connected to the support beam 14.

[0024] The first rollers 2 are symmetrically arranged on both sides of the upper surface of the grille 3, and the second roller 4 is arranged in the middle position of the upper surface of the grille 3. The first roller 2 and the second roller 4 are connected to a servo motor 18 at one end passing through the quenching tank 5. The surfaces of the first roller 2 and the second roller 4 are provided with paddles 19 that are equidistant and distributed in a circular array, and the paddles 19 are interspersed between the grilles 3. The heated screws are continuously transmitted to the input slot 1 and fall on the surface of the grille 3. The pointed part of the screw will pass through the gap between the grilles 3, and driven by the paddles 19 on the surface of the first roller 2, it will slide along the grille 3 and enter the quenching tank 5. After contacting with the quenching oil in the quenching tank 5, the quenching treatment of the screw is realized. The paddles 19 on the surface of the first roller 2 and the second roller 4 can speed up the transmission speed of the screw in the grille 3 to avoid blockage.

[0025] A bottom bracket 12 is installed on the lower surface of the quenching tank 5, a compressor 13 is installed on the upper surface of the bottom bracket 12, and a controller 15 is arranged on one side of the compressor 13. The outer walls on both sides of the quenching tank 5 are respectively provided with a manifold 9 and a shunt pipe 17. Both ends of the compressor 13 are respectively provided with a delivery pipe 16 connected to the manifold 9 and the shunt pipe 17. A cooling pipe 10 that runs through the inside of the quenching tank 5 is connected between the manifold 9 and the shunt pipe 17. The surface of the cooling pipe 10 is provided with evenly distributed fins 11. The inner walls on both sides of the upper end of the quenching tank 5 are embedded with temperature sensors 7. The compressor 13, the temperature sensor 7 and the servo motor 18 are electrically connected to the controller 15. During the quenching process, the temperature sensor 7 monitors the temperature of the quenching oil in real time, and delivers the cooling medium to the cooling pipe 10 through the compressor 13. The quenching oil is cooled by the fins 11 on the surface of the cooling pipe 10, so that the quenching oil maintains a constant temperature, avoids the problem of excessive temperature of the quenching oil during the continuous quenching process, and effectively ensures the effect of the quenching treatment of the screws.

[0026] During actual use, the heated screws are continuously transmitted to the input slot 1 and fall on the surface of the grille 3. The pointed part of the screw will pass through the gap between the grilles 3, and driven by the paddle 19 on the surface of the first roller 2, it will slide along the grille 3 and enter the quenching tank 5. After contacting the quenching oil in the quenching tank 5, the quenching treatment of the screw is achieved. The paddle 19 on the surface of the first roller 2 and the second roller 4 can speed up the transmission speed of the screw in the grille 3 to avoid blockage.

[0027] At the same time, during the quenching process, the temperature sensor 7 monitors the temperature of the quenching oil in real time, and transports the cooling medium to the cooling tube 10 through the compressor 13. The quenching oil is cooled by the fins 11 on the surface of the cooling tube 10, so that the quenching oil maintains a constant temperature, avoiding the problem of over-high temperature of the quenching oil during the continuous quenching process, and effectively ensuring the effect of the screw quenching treatment.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fully automatic heat treatment equipment for screws, comprising a first roller (2), a grid (3), a second roller (4), a quenching tank (5), a manifold (9), a compressor (13), a support beam (14), a controller (15) and a shunt pipe (17), characterized in that: The quenching tank (5) is provided with equidistantly distributed grids (3) inside, an input groove (1) is provided on one side of the quenching tank (5), and a discharge groove (8) is provided on the other side of the quenching tank (5), first rollers (2) are symmetrically provided on both sides of the upper surface of the grid (3), a second roller (4) is provided at the middle position of the upper surface of the grid (3), the first roller (2) and the second roller (4) pass through one end of the quenching tank (5) and are connected to a servo motor (18), and the quenching tank A bottom bracket (12) is installed on the lower surface of the bottom bracket (12), a compressor (13) is installed on the upper surface of the bottom bracket (12), and a controller (15) is provided on one side of the compressor (13); a manifold (9) and a flow divider (17) are respectively provided on the outer walls on both sides of the quenching tank (5); a cooling pipe (10) penetrating the interior of the quenching tank (5) is connected between the manifold (9) and the flow divider (17); and temperature sensors (7) are embedded and installed on the inner walls on both sides of the upper end of the quenching tank (5).

2. The fully automatic heat treatment equipment for screws according to claim 1 is characterized in that: The two ends of the grid (3) are respectively placed inside the input trough (1) and the discharge trough (8).

3. The fully automatic heat treatment equipment for screws according to claim 1 is characterized in that: The lower surface of the grille (3) is provided with a bracket (6), and the lower end of the bracket (6) is connected to a support beam (14), and the inner walls on both sides of the quenching tank (5) are connected to the support beam (14).

4. The fully automatic heat treatment equipment for screws according to claim 1 is characterized in that: Delivery pipes (16) connected to the converging pipe (9) and the branching pipe (17) are respectively provided at both ends of the compressor (13).

5. The fully automatic heat treatment equipment for screws according to claim 1 is characterized in that: The compressor (13), the temperature sensor (7) and the servo motor (18) are all electrically connected to the controller (15).

6. The fully automatic heat treatment equipment for screws according to claim 1, characterized in that: The surface of the cooling pipe (10) is provided with evenly distributed fins (11).

7. The fully automatic heat treatment equipment for screws according to claim 1 is characterized in that: The surfaces of the first rotating roller (2) and the second rotating roller (4) are both provided with paddles (19) which are equidistant and distributed in a circular array, and the paddles (19) are all inserted between the grilles (3).

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