Shot blasting device for fastener production

Abstract

The utility model relates to the technical field of shot blasting for fastener production, in particular to a shot blasting device for fastener production, which comprises a shot blasting box, a placing frame and a cooling cylinder which are arranged in the shot blasting box, sprayers which are transversely and uniformly distributed at the upper end of the shot blasting box, and a drying cylinder, a drying fan is arranged on the right face of the shot blasting box, the air outlet end of the drying fan communicates with an air outlet nozzle installed on the side wall of the drying cylinder through an air outlet pipe, the drying fan blows air to dry shots cooled through water spraying, and water on the surfaces of the shots is removed; the shot conveying pipe is mounted on the inner wall of the left side of the shot blasting box and communicates with a shot box arranged above the shot blasting box through a shot conveying pipe; according to the shot blasting machine, shots can be cooled by spraying water, the situation that the mechanical performance of the shots is reduced due to the fact that the temperature of the shots is too high is avoided, the cooled shots can be dried, and the situation that the shot blasting quality is reduced due to the fact that water on the surfaces of the shots reduces impact force of the shots is avoided.

Description

Technical Field

[0001] This utility model relates to the field of shot blasting technology for fastener production, specifically to a shot blasting device for fastener production. Background Technology

[0002] The working principle of shot blasting equipment is to use shot blasters to spray shot at high speed, so that the shot has a certain kinetic energy, which can effectively remove oxide layer, burrs, dirt and other impurities from the surface of fasteners. This not only improves the surface smoothness of fasteners, but also enhances their surface adhesion, providing good surface conditions for subsequent coating or plating processes.

[0003] However, in existing shot blasting equipment for fastener production, the shot material generates a large amount of heat due to its high-speed movement and friction with the fastener surface, causing its temperature to rise. During the automatic recovery and continued shot blasting process, the shot material cannot be cooled down, and its temperature will gradually increase. If the shot material temperature is too high, it will lead to changes in its properties, such as a decrease in mechanical properties like hardness and strength, and may even cause corrosion, thus affecting its subsequent use and lifespan. In addition, if the shot material is not handled properly during the heating process, it may also damage the shot blasting equipment or affect the quality and efficiency of the shot blasting process. Utility Model Content

[0004] The purpose of this invention is to provide a shot blasting device for fastener production, which solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a shot blasting device for fastener production, comprising a shot blasting box and an internal rack, a cooling cylinder located on the right side of the shot blasting box, with its top left side connected to the lower end of the shot blasting box via a feed hopper, and spray nozzles evenly distributed laterally at its upper end to spray water onto the shot after blasting to cool it down and prevent it from overheating, a drying cylinder whose lower end is connected to the right side of the bottom of the cooling cylinder via a feed pipe, a drying fan located on the right side of the shot blasting box with its outlet connected to an air nozzle installed on the side wall of the drying cylinder via an air outlet pipe to dry the shot after water spraying and cooling, removing surface moisture, and a shot blaster installed on the inner left side of the shot blasting box and connected to a shot hopper located above the shot blasting box via a shot conveying pipe, with the upper right side of the shot hopper connected to the upper end of the drying cylinder via a discharge pipe.

[0007] Furthermore, the placement rack is hung on a hook, and a motor-driven hook is provided above the shot blasting box to rotate.

[0008] Furthermore, an auger is horizontally arranged inside the cooling cylinder, and a motor for driving the auger to rotate is provided on the left side of the cooling cylinder.

[0009] Furthermore, a second auger is longitudinally arranged inside the drying cylinder, and a second motor for driving the second auger is arranged above the drying cylinder.

[0010] Furthermore, a drain pipe is connected to the bottom end of the drying cylinder, and a filter screen is installed on the top surface of the bottom plate of the drying cylinder to intercept the shot entering the drying cylinder.

[0011] Furthermore, the air outlet of the air nozzle is equipped with a filter screen to block the pellets.

[0012] Furthermore, an inclined filter plate is provided at the bottom of the shot blasting box to separate the shot and impurities after shot blasting.

[0013] Furthermore, the dust extraction fan has a dust extraction hood on the right end that connects to the bottom of the shot blasting box, and a collection box on the left end for storing the extracted impurities.

[0014] This utility model has the following beneficial effects:

[0015] This invention uses a nozzle to spray water onto the shot to cool it down, thus reducing the temperature of the shot and preventing its mechanical properties from weakening. This helps to extend the service life of the shot. At the same time, the nozzle cleans the shot, keeping it clean and enabling more effective removal of impurities from the workpiece surface during shot blasting.

[0016] This invention uses a drying fan to dry the shot, removing surface moisture and preventing the formation of a barrier layer that weakens the direct contact and impact force between the shot and fasteners, thereby reducing the effectiveness of shot blasting and making it impossible to completely remove impurities from the shot surface.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0020] Figure 2 for Figure 1 A partial structural diagram;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure in the middle;

[0022] Figure 4 for Figure 1 A cross-sectional view of the shot blasting box in the diagram;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] In the diagram: 1. Shot blasting box; 2. Placement rack; 3. Hook; 4. Motor 3; 5. Cooling cylinder; 501. Feed hopper; 6. Nozzle; 7. Motor 1; 8. Screw conveyor 1; 9. Drying cylinder; 901. Feed pipe; 902. Discharge pipe; 10. Motor 2; 11. Screw conveyor 2; 12. Shot hopper; 1201. Shot conveying pipe; 13. Shot blaster; 14. Dust hood; 15. Dust extraction fan; 16. Collection box; 17. Drying fan; 1701. Air outlet pipe; 18. Air outlet nozzle; 19. Drain pipe; 20. Filter plate. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Please see Figure 1-4 As shown, this utility model is...

[0028] A shot blasting device for fastener production includes a shot blasting box 1 and a placement rack 2 inside it, a cooling cylinder 5 located on the right side of the shot blasting box 1, with its top left side connected to the lower end of the shot blasting box 1 via a feed hopper 501, and spray nozzles 6 evenly distributed horizontally at its upper end. Water is sprayed through the spray nozzles 6 to cool the shot material after blasting, preventing the shot material temperature from becoming too high. A drying cylinder 9 is connected at its lower end to the right side of the bottom of the cooling cylinder 5 via a feed pipe 901. A drying fan 17 is provided on the right side of the shot blasting box 1, and the air outlet of the drying fan 17 is connected to an air outlet 18 installed on the side wall of the drying cylinder 9 via an air outlet pipe 1701. The drying fan 17 blows air to dry the shot material after water spraying and cooling, removing surface moisture from the shot material. A shot blaster 13 is installed on the left inner wall of the shot blasting box 1 and is connected to a shot material box 12 located above the shot blasting box 1 via a shot conveying pipe 1201. The upper right side of the shot material box 12 is connected to the upper end of the drying cylinder 9 via a discharge pipe 902.

[0029] This embodiment provides a shot blasting device for fastener production. After shot blasting, the heated shot enters a cooling cylinder 5, where water is sprayed onto the shot through a nozzle 6 to cool and clean it. This prevents the shot from overheating and altering its mechanical properties, thus extending its service life. After cleaning, the shot enters a drying cylinder 9, where air generated by a drying fan 17 is blown out through an air outlet 18 to dry the shot. This removes surface moisture, keeping the shot dry and preventing moisture from forming a buffer layer that reduces the impact of the shot and ensures the fastener surface is not properly cleaned.

[0030] The placement rack 2 is hung on the hook 3. The shot blasting box 1 is equipped with a motor 4 above it to drive the hook 3 to rotate. The rotation of the hook 3 by the motor 4 allows the fasteners placed on the hook 3 to be shot blasted by the shot blaster 13 in the front, thereby improving the shot blasting effect.

[0031] The cooling cylinder 5 is equipped with a horizontally placed auger 8. The left side of the cooling cylinder 5 is equipped with a motor 7 that drives the auger 8 to rotate. The motor 7 drives the auger 8 to rotate, transferring the shot from the left end to the right end of the cooling cylinder 5. At the same time, the cooling cylinder 5 is turned over to increase the contact area between the shot and water, ensuring the cooling and rinsing effect of the shot.

[0032] The drying cylinder 9 is equipped with a screw conveyor 11 arranged longitudinally inside, and a motor 10 is arranged above the drying cylinder 9 to drive the screw conveyor 11. The motor 10 drives the screw conveyor 11 to rotate, thereby moving the cleaned pellets upward.

[0033] The bottom end of the drying cylinder 9 is connected to a drain pipe 19. A filter screen is installed on the top surface of the bottom plate of the drying cylinder 9 to intercept the pellets entering the drying cylinder 9. The water sprayed from the nozzle 6 enters the drying cylinder 9 through the feed pipe 901 and leaves through the drain pipe 19. The filter screen intercepts the pellets to prevent them from being washed away by the water flow.

[0034] The air outlet of the air nozzle 18 is equipped with a filter screen to block the pellets and prevent them from entering the air outlet 18.

[0035] The shot blasting box 1 is equipped with an inclined filter plate 20 at the bottom, which is used to separate the shot and impurities after shot blasting. The filter plate 20 separates the freshly shot from the dust and waste generated by shot blasting. The filter plate 20 intercepts the shot, and the shot rolls along the filter plate 20 and finally enters the cooling cylinder 5 through the feed hopper 501.

[0036] The dust extraction fan 15 has a dust extraction hood 14 on its right end, which is connected to the bottom of the shot blasting box 1. The left end has a collection box 16 for storing the extracted impurities. After passing through the filter plate 20, the impurities are sucked into the dust extraction hood 14 under the negative pressure of the dust extraction fan 15 and finally discharged into the collection box 16 for collection, thereby reducing the dust generated during processing.

[0037] Understandably, this invention can spray water to cool the shot, preventing the shot from overheating and causing a decrease in its mechanical properties, allowing the shot to be directly recycled. Secondly, it can dry the cooled shot, preventing the surface moisture from reducing the impact force of the shot and thus reducing the shot blasting quality.

[0038] A specific application of this embodiment is as follows: shot blasting is performed on fasteners placed on the placement rack 2 by the shot blasting machine 13 fed from the shot hopper 12. During the shot blasting process, the placement rack 2 is rotated by the motor 4, so that the fasteners placed in the placement rack 2 can face the shot blasting machine 13 directly for shot blasting. After shot blasting, the shot is filtered by the filter plate 20 and enters the cooling cylinder 5. The nozzle 6 sprays water to cool the shot. If the temperature of the nozzle 6 is too high, it will affect its mechanical strength and improve the service life of the shot. Then the shot enters the drying cylinder 9 from the nozzle 6 and moves upward under the drive of the auger 11. During the movement, the drying fan 17 blows air from the air outlet 18 to dry the shot, remove the surface moisture of the shot, and prevent the moisture from forming a barrier layer on the surface of the shot, which will reduce the shot blasting effect. Finally, the dried shot enters the shot hopper 12 through the discharge pipe 902 to complete the circulating feeding.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A shot blasting apparatus for fastener production, comprising a shot blasting box (1) and a placement rack (2) disposed inside it, characterized in that: Cooling cylinder (5) is set on the right side of shot blasting box (1). The top left side is connected to the lower end of shot blasting box (1) through feed hopper (501). Spray nozzles (6) are evenly distributed horizontally on the upper end. Water is sprayed through the spray nozzles (6) to cool the shot after shot blasting and prevent the shot temperature from being too high. The lower end of the drying cylinder (9) is connected to the right side of the bottom of the cooling cylinder (5) through the feed pipe (901). The right side of the shot blasting box (1) is provided with a drying fan (17), and the air outlet of the drying fan (17) is connected to the air outlet (18) installed on the side wall of the drying cylinder (9) through the air outlet pipe (1701). The drying fan (17) blows air to dry the shot after spraying water and cooling, and removes the surface moisture of the shot. The shot blaster (13) is installed on the inner left side of the shot blasting box (1) and is connected to the shot hopper (12) above the shot blasting box (1) through the shot conveying pipe (1201). The upper right side of the shot hopper (12) is connected to the upper end of the drying cylinder (9) through the discharge pipe (902).

2. The shot blasting apparatus for fastener production according to claim 1, characterized in that: The placement rack (2) is hung on the hook (3), and a motor (4) is provided above the shot blasting box (1) to drive the hook (3) to rotate.

3. The shot blasting apparatus for fastener production according to claim 1, characterized in that: The cooling cylinder (5) is provided with an auger (8) arranged horizontally inside, and a motor (7) is provided on the left side of the cooling cylinder (5) to drive the auger (8) to rotate.

4. The shot blasting apparatus for fastener production according to claim 1, characterized in that: A screw conveyor (11) is longitudinally arranged inside the drying cylinder (9), and a motor (10) for driving the screw conveyor (11) is arranged above the drying cylinder (9).

5. The shot blasting apparatus for fastener production according to claim 1, characterized in that: The bottom end of the drying cylinder (9) is connected to a drain pipe (19), and a filter screen is installed on the top surface of the bottom plate of the drying cylinder (9) to intercept the pellets entering the drying cylinder (9).

6. The shot blasting apparatus for fastener production according to claim 1, characterized in that: The air outlet of the air nozzle (18) is equipped with a filter screen to block the pellets.

7. The shot blasting apparatus for fastener production according to claim 1, characterized in that: An inclined filter plate (20) is provided at the bottom of the shot blasting box (1) to separate the shot and impurities after shot blasting.

8. The shot blasting apparatus for fastener production according to claim 1, characterized in that: The vacuum blower (15) has a vacuum hood (14) on the right end connected to the bottom of the shot blasting box (1), and a collection box (16) on the left end for storing the vacuumed impurities.

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