Cooling pond for screw quenching

Abstract

The cooling pond comprises a containing box, a cooling pond body and a PTC refrigerator, the containing box is used for containing screws, a plurality of hollows are formed in the side wall of the containing box, a plurality of installation openings are horizontally formed in the side wall of the cooling pond body in a penetrating mode, heat conduction plates are fixedly installed in the installation openings in a sealed mode, and the PTC refrigerator is arranged in the containing box. A PTC refrigerator is fixedly installed on the outer side face of the heat conduction plate, the refrigerating end of the PTC refrigerator is attached to the heat conduction plate, the bottom of the cooling pond is connected with a blow-off pipe provided with a valve, and by installing the PTC refrigerator, low temperature of the PTC refrigerator is transmitted into quenching oil in the cooling pond body through the heat conduction plate to cool the quenching oil, so that the quenching oil is cooled, and the cooling effect is improved. And the cooling speed of quenching oil can be increased, so that the requirement for rapid cooling of subsequent screws is met.

Description

Technical Field

[0001] The utility model relates to the technical field of screw quenching, in particular to a cooling pool for screw quenching. Background Technique

[0002] After being formed, screws usually need to be heat-treated. First, they need to go through the annealing process, and then quenching. In the quenching process, the screws need to be heated at a high temperature first, and then kept warm for a period of time. After stabilization, they are immersed in quenching oil for rapid cooling. In the prior art, usually, the cooling pool is filled with low-temperature quenching oil, and then the material box containing the screws is lifted by a lifting mechanism and placed into the cooling pool to be immersed in the quenching oil for cooling. Usually, the number of cooling pools in a workshop is not too many. Therefore, when the production arrangement is intensive, one cooling pool needs to be repeatedly used to cool different batches of screws in succession.

[0003] However, in the prior art, the cooling pool usually cools down by natural heat dissipation. When cooling the previous batch of screws, the temperature of the quenching oil has not completely dropped, and then it is necessary to cool the next batch of quenched screws. But in the quenching process, the screws need to be cooled quickly. The temperature of the quenching oil is not in time to drop, resulting in too high a temperature of the quenching oil when cooling the subsequent screws, which will reduce the cooling speed of the screws and the quenching quality. Content of the Utility Model

[0004] In order to solve the deficiencies in the above-mentioned prior art, the utility model provides a cooling pool for screw quenching.

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

[0006] A cooling pool for screw quenching, comprising a placement box, a cooling pool body and a PTC cooler. The placement box is used for placing screws. There are several hollow openings on the side wall of the placement box. There are several installation openings horizontally penetrating through the side wall of the cooling pool body. A heat conduction plate is fixedly installed in the installation openings in a sealed manner. A PTC cooler is fixedly installed on the outer side surface of the heat conduction plate. The refrigerating end of the PTC cooler is arranged in contact with the heat conduction plate. A sewage pipe with a valve is connected to the bottom of the cooling pool.

[0007] Preferably, at least one turbine assembly is installed on the inner wall of the cooling pool body.

[0008] Preferably, a heat collecting cover that covers and seals the installation openings is fixedly installed on the outer wall of the cooling pool body. A heat delivery pipe is connected to the heat collecting cover.

[0009] Preferred technical solution: A rotating mechanism is provided inside the cooling tank body. The rotating mechanism includes two "U"-shaped brackets symmetrically installed inside the cooling tank body. A driving gear is installed on the inner wall of one side of the cooling tank body. The driving gear is located below the "U"-shaped bracket. The driving gear is fixedly installed on a rotating shaft. The outer end of the rotating shaft extends out of the cooling tank body, and the rotating shaft is in sealed rotational connection with the cooling tank body. The rotating shaft is driven to rotate by a motor. Central shafts are fixedly provided at the centers of both ends of the placement box. Circular support blocks matching the "U"-shaped brackets are fixedly provided on the central shafts. A driven gear meshing with the driving gear is fixedly provided on the central shaft at one end of the placement box.

[0010] Preferred technical solution: The cross-sectional shape of the placement box is hexagonal. A material opening is provided on one side wall of the placement box. A cover plate for closing the material opening is installed on this side wall of the placement box through bolts.

[0011] Compared with the prior art, the beneficial effects are as follows:

[0012] The utility model has a simple structure and is convenient to use. By installing a PTC cooler, the low temperature of the PTC cooler is transferred to the quenching oil in the cooling tank body through a heat conduction plate to cool the quenching oil, which can accelerate the cooling speed of the quenching oil, thereby meeting the requirement for quickly cooling the subsequent screws. Description of the Drawings

[0013] Figure 1 is a partial structural cross-sectional view of the utility model

[0014] Figure 2 is a cross-sectional view of the connection structure between the driving gear and the driven gear of the utility model;

[0015] Figure 3 is a front view of the utility model;

[0016] Figure 4 is a top view of the utility model;

[0017] Figure 5 is a cross-sectional view of the placement box of the utility model.

[0018] Reference numerals: 1. Cooling tank body; 2. Installation opening; 3. Heat conduction plate; 4. PTC cooler; 5. Heat collection cover; 6. Heat delivery pipe; 7. Turbine assembly; 8. Placement box; 9. "U"-shaped bracket; 10. Central shaft; 11. Circular support block; 12. Drain pipe; 13. Driven gear; 14. Driving gear; 15. Rotating shaft; 16. First synchronous pulley; 17. Motor; 18. Synchronous belt; 19. Second synchronous pulley; 20. Material opening; 21. Cover plate. Detailed Description of the Invention

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] A cooling pool for screw quenching includes a placement box 8, a cooling pool body 1, and a PTC cooler 4. The placement box 8 is used to place screws. The side wall of the placement box 8 has a number of hollow openings. The placement box 8 is a box used to hold screws in the quenching process. After placing the screws in the placement box 8 and sending them into a heating device for heating and heat preservation of the screws, the placement box 8 is lifted out of the heating device by a lifting mechanism and then placed into the cooling pool body 1. The cooling pool body 1 is filled with quenching oil.

[0021] A number of mounting openings 2 are horizontally penetrated through the side wall of the cooling pool body 1. A heat conducting plate 3 is fixedly installed in the mounting openings 2 in a sealed manner. The heat conducting plate 3 is made of a metal plate with good heat conducting performance. The PTC cooler 4 is fixedly installed on the outer side surface of the heat conducting plate 3. The PTC cooler 4 adopts the existing technology. The refrigerating end of the PTC cooler 4 is arranged in contact with the heat conducting plate 3. The low temperature emitted by the PTC cooler 4 is transmitted to the inside of the cooling pool body 1 through the heat conducting plate 3 to cool the quenching oil.

[0022] A drain pipe 12 with a valve is connected to the bottom of the cooling pool, and the quenching oil after cleaning the screws is discharged through the drain pipe 12.

[0023] By installing the PTC cooler 4, the low temperature of the PTC cooler 4 is transmitted to the quenching oil in the cooling pool body 1 through the heat conducting plate 3 to cool the quenching oil, which can accelerate the cooling speed of the quenching oil, thereby meeting the requirement for quickly cooling the subsequent screws.

[0024] In a preferred technical solution, at least one turbine assembly 7 is installed on the inner wall of the cooling pool body 1.

[0025] Since the PTC cooler 4 is installed on the side wall of the cooling pool body 1, the low temperature of the PTC first is transmitted to the part of the quenching oil close to the inner wall of the cooling pool body 1. By starting the turbine assembly 7, the quenching oil in the cooling pool body 1 can be made to flow, so as to mix the quenching oil and accelerate the cooling speed of the quenching oil.

[0026] In a preferred technical solution, a heat collecting cover 5 that covers and seals the mounting openings 2 is fixedly installed on the outer wall of the cooling pool body 1, and a heat delivery pipe 6 is connected to the heat collecting cover 5.

[0027] When the PTC cooler 4 refrigerates, it generates heat. The heat is collected by the heat collecting cover 5 and then sent to the process that requires heat through the heat delivery pipe 6, such as preheating before screw heating, thus saving energy.

[0028] The preferred technical solution is that a rotating mechanism is provided in the cooling pool body 1, and the rotating mechanism includes two "U"-shaped brackets 9 symmetrically installed in the cooling pool body 1, and a driving gear 14 is installed on the inner wall of one side of the cooling pool body 1, and the driving gear 14 is located below the "U"-shaped bracket 9, and the driving gear 14 is fixedly installed on a rotating shaft 15, and the outer end of the rotating shaft 15 extends out of the cooling pool body 1, and the rotating shaft 15 is sealed and rotatably connected with the cooling pool body 1, and a first synchronous wheel 16 is fixedly installed on the outer end of the rotating shaft 15, and a second synchronous wheel 19 is installed on the output shaft of the motor 17, and the first synchronous wheel 16 and the second synchronous wheel 19 are connected by a synchronous belt 18. A central shaft 10 is fixedly provided at the center of both ends of the placement box 8, and a circular support block 11 matching the "U"-shaped bracket 9 is fixedly provided on the central shaft 10, and a driven gear 13 meshing with the driving gear 14 is fixedly provided on the central shaft 10 at one end of the placement box 8.

[0029] When the placement box 8 is immersed in the quenching oil, among the pile of screws in the placement box 8, the screws located in the center are exposed to less quenching oil and cool down slowly. The placement box 8 is driven to rotate by the rotating mechanism, so that the screws in the placement box 8 roll, so that the screws can have more contact with the quenching oil, and the screws in the placement box 8 are evenly cooled.

[0030] The placement box 8 is lifted by a lifting mechanism, and then the two circular support blocks 11 on the central axis 10 at both ends of the placement box 8 are respectively clamped in two "U"-shaped brackets 9 and rotated, and the driven gear 13 on the central axis 10 at one end of the placement box 8 is engaged with the driving gear 14 on the cooling pool body 1, and the motor 17 drives the driving gear 14 to rotate, thereby driving the placement box 8 to rotate.

[0031] According to a preferred technical solution, the cross-section of the storage box 8 is hexagonal, a material opening 20 is provided on a side wall of the storage box 8, and a cover plate 21 for closing the material opening 20 is installed on the side wall of the storage box 8 by bolts.

[0032] The hexagonal placement box 8 has multiple edges, so it can better drive the screws to roll. After removing the cover plate 21, the screws can be put in or poured out through the material opening 20.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0035] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

Claims

1. A cooling pool for screw quenching, characterized in that: The invention comprises a placement box (8), a cooling pool body (1) and a PTC refrigerator (4); the placement box (8) is used to place screws; the side wall of the placement box (8) has a plurality of hollows; the side wall of the cooling pool body (1) is provided with a plurality of installation openings (2) running horizontally through the side wall; a heat conducting plate (3) is sealed and fixedly installed in the installation opening (2); a PTC refrigerator (4) is fixedly installed on the outer surface of the heat conducting plate (3); the cooling end of the PTC refrigerator (4) is attached to the heat conducting plate (3); and the bottom of the cooling pool is connected to a sewage pipe (12) provided with a valve.

2. A cooling pool for screw quenching as claimed in claim 1, characterized in that: At least one turbine assembly (7) is installed on the inner wall of the cooling pool body (1).

3. A cooling pool for screw quenching as claimed in claim 1, characterized in that: A heat collecting cover (5) which covers the installation opening (2) and is sealed is fixedly mounted on the outer wall of the cooling pool body (1), and a heat supply pipe (6) is connected to the heat collecting cover (5).

4. A cooling pool for screw quenching as claimed in claim 1, characterized in that: The cooling pool body (1) is provided with a rotating mechanism, and the rotating mechanism includes two "U"-shaped brackets (9) symmetrically installed in the cooling pool body (1). A driving gear (14) is installed on the inner wall of one side of the cooling pool body (1), and the driving gear (14) is located below the "U"-shaped bracket (9). The driving gear (14) is fixedly installed on a rotating shaft (15). The outer end of the rotating shaft (15) extends out of the cooling pool body (1), and the rotating shaft (15) is sealed and rotatably connected to the cooling pool body (1). The rotating shaft (15) is driven to rotate by a motor (17). The centers of both ends of the placement box (8) are fixed with a central shaft (10), and a circular support block (11) matching the "U"-shaped bracket (9) is fixed on the central shaft (10). A driven gear (13) meshing with the driving gear (14) is fixed on the central shaft (10) at one end of the placement box (8).

5. A cooling pool for screw quenching as claimed in claim 4, characterized in that: The cross-sectional shape of the placement box (8) is hexagonal, a material opening (20) is provided on one side wall of the placement box (8), and a cover plate (21) for closing the material opening (20) is installed on the side wall of the placement box (8) by means of bolts.

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