Dehydrogenation treatment equipment for fasteners

Abstract

The invention discloses a fastener dehydrogenation treatment device which overcomes the defect that most existing dehydrogenation treatment devices are box-type resistance furnaces or drying ovens. During treatment, the fasteners are typically stacked in trays or baskets and then pushed into a furnace to be heated. The mode has the following obvious defects: 1, non-uniform heating: the stacked fasteners are mutually contacted and shielded to cause non-uniform heat transfer, the fasteners positioned at the middle and lower layers or inside are slow in temperature rise and low in temperature, the dehydrogenation effect has extremely high requirements on temperature and time stability, the non-uniform heating directly causes incomplete dehydrogenation of part of workpieces, and the heating efficiency is high; and the mechanical properties of part of workpieces are possibly reduced due to overheating. If electroplating liquid or cleaning liquid remains on the surface of the fastener, the liquid can be accumulated at the bottom or in gaps of a workpiece in a traditional static heating mode, residues with extremely high concentration are formed after evaporation, the surface of the workpiece is corroded, and the appearance and quality are affected. Therefore, the fastener dehydrogenation treatment equipment which is uniform in heating and good in draining effect is provided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal part heat treatment, in particular to a fastener dehydrogenation treatment equipment. BACKGROUND

[0002] During the processing of fasteners, especially in surface treatment processes such as electroplating and pickling, hydrogen atoms will penetrate into the metal matrix, leading to hydrogen embrittlement, which significantly reduces the ductility and toughness of the fasteners, and may cause sudden brittle fracture under stress, posing a serious safety hazard. Dehydrogenation treatment (also known as hydrogen baking treatment) is a key process to prevent hydrogen embrittlement, that is, by heating, hydrogen atoms gain enough energy and diffuse out of the metal.

[0003] Existing dehydrogenation treatment equipment is mostly box-type resistance furnaces or ovens. During treatment, fasteners are usually stacked in trays or baskets and then pushed into the furnace for heating. This method has obvious defects: 1. Uneven heating: The stacked fasteners contact and shield each other, resulting in uneven heat transfer. The fasteners in the middle, lower layers or inside heat up slowly and have low temperatures, while the dehydrogenation effect requires high stability of temperature and time. Uneven heating directly leads to incomplete dehydrogenation of some workpieces, and over-heating of some workpieces may cause a decrease in mechanical properties.

[0004] 2. Poor draining effect: If the surface of the fasteners is left with electroplating solution or cleaning solution, the traditional static heating method will cause the liquid to accumulate at the bottom of the workpiece or in the gaps, and after evaporation, it will form a highly concentrated residue that corrodes the surface of the workpiece, affecting the appearance and quality. At the same time, the residual liquid film also hinders the escape of hydrogen.

[0005] Therefore, it is an urgent problem for the present application to provide a fastener dehydrogenation treatment equipment that has uniform heating and good draining effect. SUMMARY

[0006] To solve the above technical problems, the purpose of the present application is to overcome the obvious defects of the existing dehydrogenation treatment equipment, which is mostly box-type resistance furnaces or ovens. During treatment, fasteners are usually stacked in trays or baskets and then pushed into the furnace for heating. This method has obvious defects: 1. Uneven heating: The stacked fasteners contact and shield each other, resulting in uneven heat transfer. The fasteners in the middle, lower layers or inside heat up slowly and have low temperatures, while the dehydrogenation effect requires high stability of temperature and time. Uneven heating directly leads to incomplete dehydrogenation of some workpieces, and over-heating of some workpieces may cause a decrease in mechanical properties.

[0007] 2. Poor draining effect: If the surface of the fasteners is left with electroplating solution or cleaning solution, the traditional static heating method will cause the liquid to accumulate at the bottom of the workpiece or in the gaps, and after evaporation, it will form a highly concentrated residue that corrodes the surface of the workpiece, affecting the appearance and quality. At the same time, the residual liquid film also hinders the escape of hydrogen.

[0008] Thus, the fastener dehydrogenation treatment equipment with uniform heating and good draining effect is provided.

[0009] In order to achieve the above-mentioned purpose, the present application provides a fastener dehydrogenation treatment equipment, comprising: a first machine box, a first feeding port is formed on the top of the first machine box, and a first water outlet is arranged on the bottom of the first machine box; a first driving motor and a centrifugal cylinder, the centrifugal cylinder is rotatably arranged in the first machine box by the first driving motor, a plurality of draining holes are arranged around the circumference of the centrifugal cylinder, and the open end of the centrifugal cylinder is arranged in opposite to the first feeding port; and a hot air blower is arranged on one side of the first machine box.

[0010] Preferably, a plurality of air guide ports are arranged around the circumference of the top of the first machine box and are in communication with the air duct of the hot air blower, and each air guide port is arranged towards the inside of the centrifugal cylinder.

[0011] Preferably, a disturbing mechanism is further arranged in the first machine box to disturb the fasteners in the centrifugal cylinder.

[0012] Preferably, the disturbing mechanism comprises: a second driving motor and a rotating disc, the rotating disc is rotatably arranged in the inside of the first machine box by the second driving motor, a clamping ball groove is arranged at the position deviated from the axis of the rotating disc, and a mounting frame is horizontally arranged above the rotating disc; and a lifting stirring rod, the lifting stirring rod is vertically arranged through the mounting frame, and a clamping ball rod which is matched with the clamping ball groove is telescopically arranged at the lower end of the lifting stirring rod.

[0013] Preferably, the equipment further comprises a third driving motor and a second machine box, the first machine box is rotatably arranged in the inside of the second machine box by the third driving motor, and a second feeding port which is matched with the first feeding port is arranged on the top of the first machine box.

[0014] Preferably, the second machine box further comprises: a guide groove which is arranged on the opposite sides of the second machine box and is matched with the first water outlet, and a water receiving tank which is in communication with the guide groove.

[0015] Preferably, the inner bottom of the water receiving tank is arranged in a slope shape, and a second water outlet is arranged at the bottom of the slope.

[0016] Preferably, a receiving frame is further arranged on the bottom of the second machine box.

[0017] Preferably, an air compression package is further arranged in the inside of the second machine box, and the disturbing mechanism can further comprise a plurality of pulse air flow nozzles which are connected with the compression air package and are arranged in the inside of the second machine box, so as to blow the fasteners off from the inner wall of the centrifugal cylinder.

[0018] Preferably, the first chassis is symmetrically provided with snap-fit ​​ring blocks on opposite sides, and the second chassis is symmetrically provided with snap-fit ​​ring grooves on opposite inner sides that are adapted to each snap-fit ​​ring block.

[0019] According to the above technical solution, the beneficial effects of this invention compared with the prior art are as follows: This application adds fasteners to be dehydrogenated into the second feed inlet. The fasteners enter the centrifuge drum through the second feed inlet and the first feed inlet. Then, the first drive motor is started to drive the centrifuge drum to rotate. At the same time, the hot air blower is started to heat the fasteners inside the centrifuge drum. During the heating process, the second drive motor is started to drive the rotating disk to rotate. This drives the lifting stirring rod to make a vertical circular motion through the connection between the snap ball groove and the snap ball rod, thereby continuously scraping the fasteners off the inner wall of the centrifuge drum, so that the fasteners are fully heated. During this process, water stains in the centrifuge drum are continuously thrown out from the drain hole under the centrifugal force and flow out from the first water outlet into the guide channel. Then, they enter the water receiving tank along the guide channel. When the water stains in the water receiving tank reach a certain level, the user pulls out the piston at the second water outlet in time to drain the water stains in time. The entire device is coordinated and controlled by an industrial control computer.

[0020] Other features and advantages of the present invention will be described in detail in the following detailed description section; and all parts not covered in the present invention are the same as or can be implemented using the prior art. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of a fastener dehydrogenation treatment device provided in a preferred embodiment of the present invention; Figure 2 This is a planar cross-section of a fastener dehydrogenation treatment device provided in a preferred embodiment of the present invention. Figure 1 ; Figure 3 This is a planar cross-section of a fastener dehydrogenation treatment device provided in a preferred embodiment of the present invention. Figure 2 ; Figure 4 This is a partial planar cross-section of a fastener dehydrogenation treatment device provided in a preferred embodiment of the present invention. Figure 1 ; Figure 5 This is a partial three-dimensional view of a fastener dehydrogenation treatment device provided in a preferred embodiment of the present invention. Figure 1 ; Figure 6This is a partial planar cross-section of a fastener dehydrogenation treatment device provided in a preferred embodiment of the present invention. Figure 2 ; Figure 7 This is a partial three-dimensional view of a fastener dehydrogenation treatment device provided in a preferred embodiment of the present invention. Figure 2 .

[0022] Explanation of reference numerals in the attached drawings: 1. First chassis; 11. First feed inlet; 12. First water outlet; 13. Air guide; 14. Mounting bracket; 15. Snap-fit ​​ring block; 2. First drive motor; 3. Centrifuge cylinder; 31. Drain hole; 4. Hot air blower; 5. Disturbing mechanism; 51. Second drive motor; 52. Rotating disc; 521. Snap-fit ​​ball groove; 53. Lifting stirring rod; 531. Snap-fit ​​ball rod; 6. Third drive motor; 7. Second chassis; 71. Second feed inlet; 72. Guide channel; 73. Water receiving tank; 74. Second water outlet; 75. Snap-fit ​​ring groove; 8. Material receiving frame; 9. First protective shell; 10. Second protective shell. Detailed Implementation

[0023] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] In the description of the embodiments of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These are merely for the convenience of describing the invention 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 the invention. Furthermore, the terms "first," "second," and "third," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance. Additionally, the terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0026] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figure 5 and Figure 6 A fastener dehydrogenation treatment device includes: a first housing 1, the first housing 1 having a first feed inlet 11 on its top and first water outlets 12 on opposite sides of its bottom; a first drive motor 2 and a centrifuge cylinder 3, the centrifuge cylinder 3 being rotatably mounted inside the first housing 1 via the first drive motor 2, and having a plurality of drainage holes 31 arranged around its perimeter, the centrifuge cylinder 3 being open and connected to the first feed inlet 11; a hot air blower 4 with its air outlet facing inward is also provided on one side of the first housing 1.

[0028] This application achieves heating and dehydrogenation of fasteners and centrifugal dehydration and draining by setting up a centrifugal drum 3 and a hot air blower 4. The centrifugal dehydration efficiency is much higher than that of water stains and residual liquid flowing out naturally. Moreover, since the fasteners are constantly tumbling in the centrifugal drum 3, the problem of uneven heating caused by parts accumulation is avoided.

[0029] Reference Figure 5 and Figure 6 The top periphery of the first casing 1 is provided with several air guides 13 that are connected to the air duct of the hot air blower 4, and each air guide 13 is arranged facing the inside of the centrifuge cylinder 3.

[0030] If hot air is only blown in from one point or one side, it is easy to cause the "air duct effect" - that is, the temperature is high in the area close to the air outlet and low in the area far away, and a significant temperature gradient will be formed in the chassis. The surrounding air guide 13 forms a uniform "shower-style" or "curtain-style" hot air distribution. Hot air is sent in from all sides at the same time and in the same amount, ensuring that the temperature of the space around the entire centrifuge 3 is highly consistent. This is crucial for dehydrogenation, because uneven temperature will directly lead to incomplete dehydrogenation of some parts and unqualified quality. At the same time, since the air guide 13 is set to blow downwards, it can blow water stains downwards during the draining process of the centrifuge 3, forcing the water stains to flow out from the first water outlet 12.

[0031] Reference Figure 2 The first chassis 1 is also equipped with a disturbance mechanism 5 for disturbing the fasteners inside the centrifuge cylinder 3.

[0032] Without the disturbance mechanism 5, the fasteners would adhere to the inner wall of the centrifuge cylinder 3 during rotation, preventing the contact area between the fasteners and the inner wall from being sufficiently heated for hydrogen removal. Therefore, disturbance is necessary to ensure uniform heating of the fasteners and guarantee the hydrogen removal effect. The disturbance mechanism 5 can be a stirring rod inserted into the centrifuge cylinder 3 and attached to its inner wall, or it can be a pulse airflow nozzle connected to several compressed air bags to blow the fasteners off the inner wall of the centrifuge cylinder 3.

[0033] Reference Figure 6 and Figure 7 The disturbance mechanism 5 includes: a second drive motor 51 and a rotating disk 52. The rotating disk 52 is rotatably mounted inside the first housing 1 via the second drive motor 51, and a ball-catching groove 521 is provided off-center from its axis. A mounting frame 14 is horizontally mounted above the rotating disk 52 inside the first housing 1. A lifting stirring rod 53 is vertically mounted through the mounting frame 14, and a ball-catching rod 531 adapted to the ball-catching groove 521 is horizontally and retractably mounted at its lower end.

[0034] This application uses a ball joint linkage structure to drive the lifting stirring rod 53 to make a vertical circular motion, so as to knock off the fasteners on the inner wall of the centrifuge cylinder 3, so that it can be fully heated and improve the dehydrogenation effect; the telescopic design of the snap-fit ​​ball rod 531 can be made telescopically by means of a spring or directly to compensate for movement deviation and avoid the mechanism from jamming.

[0035] Reference Figure 1 , Figure 3 The device also includes a third drive motor 6 and a second housing 7. The first housing 1 is rotatably disposed inside the second housing 7 via the third drive motor 6, and its top is provided with a second feed port 71 adapted to the first feed port 11.

[0036] After dehydrogenation is completed, the third drive motor 6 is started to rotate and invert the first casing 1 to pour out the fasteners in the centrifuge tube 3. At the same time, the disturbance mechanism 5 is started to prevent some fasteners from getting stuck on the lifting stirring rod 53 and being unable to fall off.

[0037] Reference Figure 3 The second casing 7 is also provided with a guide channel 72 that is connected to the first water outlet 12 on both sides, and a water receiving tank 73 that is connected to the guide channel 72.

[0038] This application provides a guide channel 72 and a water receiving tank 73 to promptly discharge the drained water from inside the first casing 1 into the water receiving tank 73.

[0039] Reference Figure 4 The bottom of the water receiving tank 73 is sloped, and a second water outlet 74 is provided at the bottom of the slope.

[0040] A piston can be installed at the second water outlet 74 of this application so that the user can drain the water in the water tank 73 in a timely manner.

[0041] Reference Figure 1 and Figure 2 The bottom of the second chassis 7 is also provided with a receiving frame 8.

[0042] After dehydrogenation is completed, the third drive motor 6 is started to rotate and invert the first casing 1 to pour the fasteners in the centrifuge cylinder 3 into the receiving frame 8. Then the receiving frame 8 is removed and the fasteners are processed in the next step.

[0043] Reference Figure 2 The outer side of the first chassis 1 is also provided with a first protective shell 9 and a second protective shell 10 covering the first drive motor 2 and the second drive motor 51, respectively.

[0044] This application extends the service life by setting a first protective shell 9 and a second protective shell 10 to prevent water from entering the first drive motor 2 and the second drive motor 51.

[0045] Reference Figure 3 The first chassis 1 is symmetrically provided with snap-fit ​​ring blocks 15 on both sides, and the second chassis 7 is symmetrically provided with snap-fit ​​ring grooves 75 on both inner sides, which are adapted to each snap-fit ​​ring block 15.

[0046] The first chassis 1 of this application is rotatably mounted in the snap ring groove 75 by snap ring block 15 to improve its support point and thus improve the stability of the entire first chassis 1.

[0047] In use, the device provided by this invention involves adding fasteners to be dehydrogenated into the second feed inlet 71. The fasteners enter the centrifuge cylinder 3 through the second feed inlet 71 and the first feed inlet 11. Then, the first drive motor 2 is started to rotate the centrifuge cylinder 3, and the hot air blower 4 is started to heat the fasteners inside the centrifuge cylinder 3. During the heating process, the second drive motor 51 is started to rotate the rotating disk 52, thereby driving the lifting stirring rod 53 to move vertically through the connection between the ball groove 521 and the ball rod 531. The centrifugal cylinder 3 undergoes a circular motion in the straight direction, which continuously scrapes the fasteners off the inner wall of the centrifugal cylinder 3, allowing the fasteners to be fully heated. During this process, water stains inside the centrifugal cylinder 3 are continuously thrown out from the drain hole 31 under centrifugal force and flow out from the first water outlet 12 into the guide channel 72, and then enter the water receiving tank 73 along the guide channel 72. When the water stains in the water receiving tank 73 reach a certain level, the user promptly pulls out the piston at the second water outlet 74 to drain the water stains in time. The entire device is coordinated and controlled by an industrial control computer.

[0048] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0049] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0050] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A fastener hydrogen removal treatment device, characterized in that, include: The first housing (1) has a first feed inlet (11) on the top and a first water outlet (12) on each side of its bottom; a first drive motor (2) and a centrifuge cylinder (3). The centrifuge cylinder (3) is rotatably mounted inside the first housing (1) via the first drive motor (2) and has several drainage holes (31) around its perimeter. The centrifuge cylinder (3) is open and connected to the first feed inlet (11); a hot air blower (4) with its air outlet facing inward is also mounted on one side of the first housing (1).

2. The fastener dehydrogenation treatment equipment according to claim 1, characterized in that, The top periphery of the first chassis (1) is provided with several air guides (13) that are connected to the air duct of the hot air blower (4), and each air guide (13) is arranged facing the inside of the centrifuge cylinder (3).

3. The fastener dehydrogenation treatment equipment according to claim 1, characterized in that, The first chassis (1) is also provided with a disturbance mechanism (5) for disturbing the fasteners inside the centrifuge tube (3).

4. The fastener dehydrogenation treatment equipment according to claim 3, characterized in that, The disturbance mechanism (5) includes: a second drive motor (51) and a rotating disk (52). The rotating disk (52) is rotatably mounted inside the first housing (1) via the second drive motor (51), and a ball-locking groove (521) is provided at a position offset from its axis. A mounting frame (14) is horizontally mounted above the rotating disk (52) inside the first housing (1); a lifting stirring rod (53). The lifting stirring rod (53) is vertically mounted through the mounting frame (14), and a ball-locking rod (531) that is adapted to the ball-locking groove (521) is horizontally telescopically mounted at its lower end.

5. The fastener dehydrogenation treatment equipment according to claim 4, characterized in that, The device also includes a third drive motor (6) and a second housing (7). The first housing (1) is rotatably disposed inside the second housing (7) via the third drive motor (6), and its top is provided with a second feed port (71) that is compatible with the first feed port (11).

6. The fastener dehydrogenation treatment equipment according to claim 5, characterized in that, The second casing (7) is also provided with a guide channel (72) on each side opposite to the first water outlet (12), and a water receiving tank (73) connected to the guide channel (72).

7. The fastener dehydrogenation treatment equipment according to claim 6, characterized in that, The bottom of the water receiving tank (73) is sloped, and a second water outlet (74) is provided at the bottom of the slope.

8. The fastener dehydrogenation treatment equipment according to claim 5, characterized in that, The bottom of the second chassis (7) is also provided with a receiving frame (8).

9. The fastener dehydrogenation treatment equipment according to claim 3, characterized in that, The second chassis (7) is also equipped with an air compressor. The disturbance mechanism (5) can also be a number of pulse airflow nozzles connected to the compressed air compressor inside the second chassis, which are used to blow fasteners off the inner wall of the centrifuge cylinder (3).

10. The fastener dehydrogenation treatment equipment according to claim 5, characterized in that, The first chassis (1) is symmetrically provided with snap ring blocks (15) on both sides, and the second chassis (7) is symmetrically provided with snap ring grooves (75) that are adapted to each snap ring block (15) on both inner sides.

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