Pickling device for fastener production

Abstract

The utility model discloses a pickling device for fastener production, which comprises a pickling tank, the top of the pickling tank is rotatably provided with a support rotating shaft, the outer side of the support rotating shaft is fixedly provided with a rotating inner plate, the outer side of the rotating inner plate is fixedly provided with a protective cylinder, and the upper surface and the lower surface of the protective cylinder are respectively provided with two symmetrical connecting grooves in a penetrating manner; and double-end electric telescopic rods are fixed to the upper surface and the lower surface of the rotating inner plate correspondingly, sliding sleeves are rotationally installed at the two ends of each double-end electric telescopic rod correspondingly, a second connecting rod is arranged in the middles of the sliding sleeves in a penetrating mode, and the sliding sleeves slide on the outer sides of the second connecting rods. The two collecting frames are used, the collecting frames are turned over through the supporting rotating shafts, acid liquor on the surfaces of the fasteners subjected to previous acid pickling is removed when the fasteners are subjected to acid pickling, the fasteners with the acid liquor removed on the surfaces are collected, the waiting time in the fastener acid pickling process is saved, and the pickling efficiency is improved. And the acid liquor can be recycled.

Description

Technical Field

[0001] This utility model relates to the field of fastener processing technology, specifically to an acid pickling device for fastener production. Background Technology

[0002] Fasteners are a type of mechanical part used for fastening connections and have an extremely wide range of applications. Fasteners are used in a wide range of industries, including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, mold making, hydraulics, etc. Various types of fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters and supplies. They are the most widely used basic mechanical components. They are characterized by a wide variety of varieties and specifications, different performance and uses, and a very high degree of standardization, serialization and generalization.

[0003] Fasteners need to be pickled after production. The pickling of fasteners is mainly to remove contaminants from the fastener surface, improve the surface roughness, improve the surface finish, improve the metal properties, and enhance the weldability.

[0004] However, after fasteners are separated from the pickling tank after pickling, it is necessary to wait for the acid on the surface of the fasteners to drain naturally and return to the pickling tank, which means that subsequent pickling requires a certain amount of time. Therefore, this does not meet the existing requirements. To address this, we propose a pickling device for fastener production. Utility Model Content

[0005] The purpose of this invention is to provide a pickling device for fastener production, in order to solve the problems mentioned in the background art, such as the need to wait for the acid on the surface of the fastener to naturally drain and return to the pickling tank after the fastener is separated from the pickling tank, which leads to a certain waiting time for subsequent pickling.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an acid pickling device for fastener production, comprising an acid pickling tank, a supporting shaft rotatably mounted on the top of the acid pickling tank, a rotating inner plate fixed to the outer side of the supporting shaft, a protective cylinder fixed to the outer side of the rotating inner plate, two symmetrical connecting grooves penetrating the upper and lower surfaces of the protective cylinder, double-headed electric telescopic rods fixed to the upper and lower surfaces of the rotating inner plate, sliding sleeves rotatably mounted at both ends of the double-headed electric telescopic rods, a second connecting rod penetrating through the middle of the sliding sleeves, the sliding sleeves sliding outside the second connecting rods, one end of the second connecting rod passing through the connecting groove and connected to a first connecting rod at the end, a collection frame mounted on the other end of the first connecting rod, and a detachable panel detachably mounted on the surface of the collection frame.

[0007] Preferably, a transmission gear is fixed to the outer side of one end of the supporting shaft, a drive gear is meshed below the transmission gear, and a drive motor is axially fixed to the drive gear.

[0008] Preferably, both ends of the first connecting rod and the second connecting rod are rotatably connected with cylindrical pins. The first connecting rod is rotatably connected to the collection frame through the cylindrical pins, and the second connecting rod is rotatably connected to the rotating inner plate through the cylindrical pins.

[0009] Preferably, the first connecting rod and the second connecting rod are provided with connecting pieces on both sides of their close-to-each ends, and the two ends of the connecting pieces are penetrated by cylindrical pins at the ends of the first connecting rod and the second connecting rod.

[0010] Preferably, an elastic telescopic curtain is provided on the inner side of the connecting groove, and the elastic telescopic curtain is penetrated by the end of the second connecting rod.

[0011] Preferably, the upper and lower surfaces of the collection frame and the surface of the detachable panel are all provided with a rectangular array of multiple circular holes, which penetrate the collection frame and the detachable panel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention uses two collection frames, which are flipped by a supporting pivot, to remove the acid from the surface of the fasteners during the previous pickling process, and then collects the fasteners after the acid has been removed. This saves waiting time during the fastener pickling process, allows for the recycling of acid, and improves the pickling efficiency of the fasteners. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0016] Figure 3 This is a cross-sectional view of the protective cylinder of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the protective cylinder of this utility model.

[0018] In the diagram: 1. Pickling tank; 2. Supporting shaft; 3. Rotating inner plate; 4. Protective cylinder; 5. Connecting groove; 6. Collection frame; 7. Detachable panel; 8. First connecting rod; 9. Second connecting rod; 10. Connecting piece; 11. Sliding sleeve; 12. Double-headed electric telescopic rod; 13. Elastic telescopic curtain. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] like Figures 1 to 4 As shown, a pickling device for fastener production has a support shaft 2 rotatably mounted on the top of the pickling tank 1. A drive gear is meshed with the transmission gear fixed on the outer side of one end of the support shaft 2. A drive motor is axially fixed to the drive gear. The support shaft 2 is rotated by the drive motor, thereby realizing the interchange of the positions of the two detachable panels 7.

[0021] A rotating inner plate 3 is fixed to the outer side of the supporting shaft 2, and a protective cylinder 4 is fixed to the outer side of the rotating inner plate 3. Two symmetrical connecting grooves 5 are provided through the upper and lower surfaces of the protective cylinder 4. A double-headed electric telescopic rod 12 is fixed to the upper and lower surfaces of the rotating inner plate 3. A sliding sleeve 11 is rotatably installed at both ends of the double-headed electric telescopic rod 12. A second connecting rod 9 is provided through the middle of the sliding sleeve 11. The sliding sleeve 11 slides outside the second connecting rod 9. One end of the second connecting rod 9 passes through the connecting groove 5 and is connected to the first connecting rod 8. A collection frame 6 is installed at the other end of the first connecting rod 8. A detachable panel 7 is detachably installed on the surface of the collection frame 6. The angle of the second connecting rod 9 is adjusted by using the double-headed electric telescopic rod 12, thereby driving the first connecting rod 8 to move and change the distance between the collection frame 6 and the protective cylinder 4, so that the collection frame 6 can be immersed in the acid solution or removed from the acid solution.

[0022] Both ends of the first connecting rod 8 and the second connecting rod 9 are rotatably connected with cylindrical pins. The first connecting rod 8 is rotatably connected to the collection frame 6 through the cylindrical pins, and the second connecting rod 9 is rotatably connected to the rotating inner plate 3 through the cylindrical pins. Connecting pieces 10 are provided on both sides of the ends of the first connecting rod 8 and the second connecting rod 9 that are close to each other. The two ends of the connecting pieces 10 are penetrated by the cylindrical pins at the ends of the first connecting rod 8 and the second connecting rod 9. The rotating inner plate 3, the first connecting rod 8, the second connecting rod 9 and the collection frame 6 are connected through the connecting pieces 10 and the cylindrical pins, so that when the angle of the second connecting rod 9 changes, the distance between the collection frame 6 and the protective cylinder 4 can be adjusted through the first connecting rod 8.

[0023] The inner side of the connecting groove 5 is provided with an elastic telescopic curtain 13, which is penetrated by the end of the second connecting rod 9. The elastic telescopic curtain 13 seals the gap between the second connecting rod 9 and the protective cylinder 4, preventing acid from the surface of the collection frame 6, the detachable panel 7 and the fasteners from entering the interior of the protective cylinder 4.

[0024] The upper and lower surfaces of the collection frame 6 and the surface of the detachable panel 7 are all covered with multiple round holes in a rectangular array. The round holes penetrate the collection frame 6 and the detachable panel 7, ensuring that acid can enter between the collection frame 6 and the detachable panel 7 to pickle the fasteners, and ensuring that the acid on the surface of the fasteners slides through the collection frame 6 and returns to the inside of the protective cylinder 4.

[0025] Working principle: First, the fasteners to be pickled are placed in the upper collection frame 6. Then, the detachable panel 7 is installed. Subsequently, the drive motor, through gear transmission, causes the support shaft 2 to rotate the inner plate 3 and the protective cylinder 4 half a turn, so that the collection frame 6 containing the fasteners is below the protective cylinder 4. At this time, the lower double-headed electric telescopic rod 12 is activated and drives the sliding sleeve 11 to move. The sliding sleeve 11 pushes the second connecting rod 9, increasing the angle between the second connecting rod 9 and the rotating inner plate 3. At this time, the second connecting rod 9 pushes the collection frame 6 downward through the first connecting rod 8, so that the collection frame 6 enters the acid solution. During the fastener pickling process, the operator puts other fasteners waiting to be pickled into another collection frame 6. After the previous fastener pickling is completed, the lower-positioned double-headed electric telescopic rod 12 is energized and its end retracts, causing the collection frame 6 to reset and remove the fastener from the acid solution. At this time, the drive motor starts again and, through gear transmission, causes the support shaft 2, rotating inner plate 3, and protective cylinder 4 to rotate half a revolution again. Then, the above pickling operation is repeated to introduce new fasteners into the acid solution. During the pickling of new fasteners, the acid solution on the surface of the previously pickled fasteners slides down under the action of gravity and passes through the collection frame 6, falling onto the protective cylinder 4. The acid solution eventually returns to the inside of the pickling tank 1 along the surface of the protective cylinder 4. The staff only needs to remove the fasteners after the surface acid solution has been removed and fill in the new fasteners, saving the waiting time in the fastener pickling process and enabling the recycling of acid solution.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pickling apparatus for fastener production, comprising a pickling tank (1), characterized in that: The top of the pickling tank (1) is rotatably mounted with a support shaft (2). A rotating inner plate (3) is fixed to the outside of the support shaft (2). A protective cylinder (4) is fixed to the outside of the rotating inner plate (3). Two symmetrical connecting grooves (5) are provided through the upper and lower surfaces of the protective cylinder (4). A double-headed electric telescopic rod (12) is fixed to the upper and lower surfaces of the rotating inner plate (3). A sliding sleeve (11) is rotatably mounted at both ends of the double-headed electric telescopic rod (12). A second connecting rod (9) is provided through the middle of the sliding sleeve (11). The sliding sleeve (11) slides outside the second connecting rod (9). One end of the second connecting rod (9) passes through the connecting groove (5) and is connected to a first connecting rod (8). A collection frame (6) is installed at the other end of the first connecting rod (8). A detachable panel (7) is detachably mounted on the surface of the collection frame (6).

2. The pickling apparatus for fastener production according to claim 1, characterized in that: A transmission gear is fixed to the outer side of one end of the support shaft (2). A drive gear is meshed below the transmission gear, and a drive motor is fixed axially to the drive gear.

3. The pickling apparatus for fastener production according to claim 1, characterized in that: Both ends of the first connecting rod (8) and the second connecting rod (9) are rotatably connected with cylindrical pins. The first connecting rod (8) is rotatably connected to the collection frame (6) through the cylindrical pins, and the second connecting rod (9) is rotatably connected to the rotating inner plate (3) through the cylindrical pins.

4. The pickling apparatus for fastener production according to claim 3, characterized in that: The first connecting rod (8) and the second connecting rod (9) are provided with connecting pieces (10) on both sides of their close ends. The two ends of the connecting pieces (10) are penetrated by cylindrical pins at the ends of the first connecting rod (8) and the second connecting rod (9).

5. The pickling apparatus for fastener production according to claim 1, characterized in that: The inner side of the connecting groove (5) is provided with an elastic telescopic curtain (13), which is penetrated by the end of the second connecting rod (9).

6. The pickling apparatus for fastener production according to claim 1, characterized in that: The upper and lower surfaces of the collection frame (6) and the surface of the detachable panel (7) are all provided with a rectangular array of multiple round holes, which penetrate the collection frame (6) and the detachable panel (7).

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