Drying device for reinforcing steel bar surface treatment

Abstract

The utility model relates to the technical field of steel bar surface treatment, in particular to a drying device for steel bar surface treatment, which is used for automatically drying sprayed and cleaned steel bars and comprises a conveying module and a drying module. The drying module is arranged on the conveying module and supplies air to the reinforcing steel bars in the direction opposite to the reinforcing steel bar conveying direction. According to the drying device for reinforcing steel bar surface treatment, multi-point supporting is carried out on the sprayed reinforcing steel bars through the supporting pieces, the reinforcing steel bars can be conveyed in a suspended mode, the conveying rate is guaranteed, meanwhile, the contact area between the reinforcing steel bars and the conveying module is effectively reduced, and damage to coating layers on the surfaces of the reinforcing steel bars is reduced. Meanwhile, through the drying module, wind opposite to the moving direction of the steel bars is conveyed to the steel bars, contact between the steel bars and airflow in unit time is increased, natural drying is simulated, the drying speed is increased, and the drying effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reinforcing steel bar surface treatment technical field especially relates to a reinforcing steel bar surface treatment is with drying device. BACKGROUND

[0002] The application of reinforcing steel bar in building is very extensive, due to the complexity of different working conditions and environment, the reinforcing steel bar may need to be stored for a long time, so before the application of reinforcing steel bar, most of them are treated on the surface by coating spraying, so as to obtain the functions of rust prevention and others.

[0003] In the traditional spraying process, most of them rely on manual spraying, and the coating is obtained by natural drying after spraying. However, the natural drying method not only takes a long time, but also is seriously affected by environmental factors, and the efficiency is insufficient when facing large projects. Moreover, when naturally drying, the reinforcing steel bars are usually stacked, and the reinforcing steel bars touch and scratch each other, which easily causes the damage and falling of the un-dried coating, affecting the performance of the coating.

[0004] The current automatic spraying equipment usually uses a conveyor belt to convey the reinforcing steel bars, and then uses hot air to directly dry them. However, in this scheme, the bottom of the reinforcing steel bar directly contacts the conveyor belt, and the moisture is easily accumulated on the surface of the conveyor belt, affecting the drying effect of the lower half of the reinforcing steel bar, making the drying rate and temperature of the upper and lower parts of the reinforcing steel bar uneven, and easily causing the coating to bulge and fall, finally causing damage to the coating. TECHNICAL CONTENT

[0005] The technical problem to be solved by the utility model is that the existing reinforcing steel bar drying mechanism has poor drying effect and easily causes damage to the coating.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme: a drying device for reinforcing steel bar surface treatment is used to automatically dry the reinforcing steel bars after spraying and cleaning, comprising: a conveying module and a drying module; the drying module is arranged on the conveying module, and the drying module blows air to the reinforcing steel bars in the opposite direction of the reinforcing steel bar conveying direction.

[0007] The conveying module comprises a fixed support, a driving mechanism and a conveying chain, the driving mechanism is arranged on the fixed support, and the conveying chain is sleeved on the driving mechanism; the conveying chain is distributed along a first direction as a whole, and first connecting pieces distributed along a second direction are arranged between the conveying chains at intervals, the first connecting pieces are provided with supporting pieces, and the supporting pieces extend away from the conveying chains.

[0008] In an embodiment, the supporting piece comprises a connecting part and a supporting part, one end of the connecting part is connected with the first connecting piece, and the other end of the connecting part is provided with the supporting part; two supporting parts are arranged on each connecting part, and the included angle between the supporting parts is less than 180°.

[0009] In an embodiment, a plurality of supporting pieces are arranged on the first connecting piece at intervals.

[0010] In one embodiment, the drive mechanism includes a drive motor, a drive shaft, and a driven shaft, with the drive motor and drive shaft being drivenly connected; the drive shaft and driven shaft are disposed at both ends of a fixed bracket, and a conveyor chain is sleeved on the drive shaft and driven shaft.

[0011] In one embodiment, the drying module includes a sealed housing, a blower motor, and an agitator blade. The sealed housing includes an outer shell and an inner shell. The outer shell is disposed above the conveying module, and the inner shell is disposed between the drive shaft and the driven shaft. The outer shell and the inner shell together form a drying cavity. The blower motor is disposed on the top of the outer shell, and the agitator blade is disposed inside the drying cavity. The blower motor drives the agitator blade to rotate.

[0012] In one embodiment, the drying chamber has an inlet and an outlet at both ends, with the outlet being smaller than the inlet.

[0013] In one embodiment, an observation window is provided on the side wall of the sealing housing, and the observation window is hinged to the sealing housing.

[0014] In one embodiment, the drying module further includes a heating mechanism disposed in the middle of the drying module.

[0015] In one embodiment, a purging module is also included, which is disposed at the front end of the drying module;

[0016] The purging module includes a purging air pump, a purging pipeline, and a liquid collection tank. The purging air pump is located on the side of the conveying module and blows air along the second direction to the upper and lower sides of the reinforcing bars through the purging pipeline. The liquid collection tank is located at the bottom of the conveying module and is used to collect the blown-down droplets.

[0017] In one embodiment, the purging module further includes a barrier wall disposed above the conveying module, and the inner wall of the barrier wall is provided with an arc-shaped flow-slowing element corresponding to the purging pipeline.

[0018] The beneficial effects of this utility model are as follows: The drying device for steel bar surface treatment provided by this utility model provides multi-point support for the sprayed steel bars through support members, allowing the steel bars to be transported in suspension. While ensuring the transport rate, it effectively reduces the contact area between the steel bars and the transport module, thus reducing damage to the coating on the steel bar surface. At the same time, this utility model uses the drying module to deliver air to the steel bars in the opposite direction of their movement, increasing the contact between the steel bars and the airflow per unit time. This simulates natural drying while improving the drying rate and ensuring the drying effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0021] Figure 2 This is a perspective view of another embodiment of the present invention;

[0022] Figure 3 for Figure 2 Top view;

[0023] Figure 4 for Figure 3 Cross-sectional view at point AA;

[0024] Figure 5 for Figure 4 Enlarged view of the middle purging module and drying module;

[0025] Figure 6 for Figure 3 Cross-sectional view at BB;

[0026] Figure 7 This is a three-dimensional schematic diagram of the conveying module in one embodiment of the present invention.

[0027] Label Explanation:

[0028] 1. Conveying module; 11. Fixed bracket; 111. Fixed seat; 112. First bracket; 113. Second bracket; 114. Third bracket; 12. Drive mechanism; 13. Conveying chain; 14. First connecting piece; 15. Support piece; 2. Drying module; 21. Sealed shell; 211. Outer shell; 212. Inner shell; 22. Blower motor; 23. Stirring blade; 24. Drying chamber; 25. Feed inlet; 26. Discharge outlet; 27. Lifting door; 28. Observation window; 29. ​​Heating mechanism; 3. Purging module; 31. Purging pump; 32. Purging pipeline; 33. Liquid collection tank; 34. Barrier wall; 35. Arc-shaped flow buffer; 4. Reinforcing steel. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of this utility model, it should be noted that the terminology... " center ” Vertical ” Horizontal ” "superior ” "Down ” "forward ” "back ” "Left ” "right ” Vertical ” "level ” "top ” "end ” "Inside ” "outside ” The orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element 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 the present invention. Furthermore, the terminology... " First ” "second ” Used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Please refer to Figure 1 as well as Figure 2 A drying device for surface treatment of reinforcing bars is disclosed, used for automatically drying reinforcing bars 4 after spraying and cleaning. The device includes a conveying module 1 and a drying module 2. The drying module 2 is mounted on the conveying module 1 and supplies air to the reinforcing bars 4 in the opposite direction to the conveying direction. Specifically, the first direction is perpendicular to the second direction, and both the first and second directions are parallel to the horizontal plane. In this embodiment, the first direction is the axial direction of the reinforcing bars 4. Specifically, the reinforcing bars 4 are displaced along the first direction under the action of the conveying module 1, while the drying module 2 supplies air in the opposite direction, allowing the reinforcing bars 4 to continuously contact fresh air with relatively low humidity during the conveying process, thereby improving drying efficiency.

[0032] The conveying module 1 includes a fixed bracket 11, a drive mechanism 12, and a conveying chain 13. The drive mechanism 12 is mounted on the fixed bracket 11, and the conveying chain 13 is sleeved on the drive mechanism 12. The conveying chain 13 is distributed along a first direction, and first connecting members 14 distributed along a second direction are spaced apart between the conveying chains 13. Supporting members 15 are provided on the first connecting members 14, and the supporting members 15 extend from the first connecting members 14 in a direction away from the conveying chains 13. That is, the conveying module 1 is a chain drive structure. The conveying chains 13 on both sides of the first connecting members 14 rotate under the drive of the drive mechanism 12, causing the first connecting members 14 to move, which in turn causes the steel bars 4 placed on the supporting members 15 to move. The supporting members 15 make the steel bars 4 suspended in the air, reducing the contact area between the steel bars 4 and the conveying module 1.

[0033] Specifically, the fixed support 11 includes a fixed base 111, a first support 112, a second support 113, and a third support 114. At least four fixed bases 111 are provided. The third support 114 is vertically mounted on the fixed base 111. The first supports 112 are distributed along a first direction and positioned between the third supports 114. The second supports 113 are distributed along a second direction and positioned between the third supports 114. The first supports 112, second supports 113, and third supports 114 form a frame structure. The drive mechanism 12 and the conveyor chain 13 are located inside the first support 112. Those skilled in the art can adjust the fixed support 11 according to the required length of the conveying module 1; no specific limitations are imposed.

[0034] Understandably, the drying device for rebar surface treatment provided by this utility model provides multi-point support for the sprayed rebar 4 through the support member 15, enabling the rebar 4 to be suspended and transported. While ensuring the transport rate, this effectively reduces the contact area between the rebar 4 and the transport module 1, thus reducing damage to the surface coating of the rebar 4. Simultaneously, this utility model, through the drying module 2, delivers air to the rebar 4 in the opposite direction of its movement, increasing the contact between the rebar 4 and the airflow per unit time. This simulates natural drying while improving the drying rate and ensuring the drying effect.

[0035] In one embodiment, the support member 15 includes a connecting portion and a supporting portion. One end of the connecting portion is connected to the first connecting member 14, and the other end of the connecting portion is provided with a supporting portion. Each connecting portion has two supporting portions, and the included angle between the supporting portions is less than 180°. Specifically, the connecting portion of the support member 15 extends vertically upward from the first connecting member 14. At the end of the connecting portion, the two supporting portions form a V-shaped structure. This arrangement allows the support member 15 to support steel bars 4 of different thicknesses and ensures that the steel bars 4 do not roll off during travel.

[0036] In one embodiment, multiple support members 15 are spaced apart on the first connector 14. That is, at least two support members 15 are spaced apart on the first connector 14, so that the conveying module 1 can convey multiple steel bars 4 at the same time, thereby improving the working efficiency of the drying device for steel bar surface treatment.

[0037] In one embodiment, the drive mechanism 12 includes a drive motor, a drive shaft, and a driven shaft. The drive motor is drivenly connected to the drive shaft. The drive shaft and driven shaft are located at both ends of the fixed bracket 11, and the conveyor chain 13 is sleeved on the drive shaft and driven shaft. This configuration results in a simple overall structure, reliable and stable conveying process, and the ability to adjust the speed of the drive motor and control the conveying speed as needed, thereby controlling the drying time, offering strong adjustability. Specifically, the drive motor and drive shaft are connected via a gear set or chain. Specifically, the drive shaft and driven shaft are located at both ends of the first bracket 112, which has a semi-enclosed structure, covering the conveyor chain 13 and both ends of the drive shaft and driven shaft inside, preventing external objects from interfering with the operation of the drive mechanism 12 and the conveyor chain 13.

[0038] In one embodiment, the drying module 2 includes a sealed housing 21, a blower motor 22, and an agitator blade 23. The sealed housing 21 includes an outer shell 211 and an inner shell 212. The outer shell 211 is positioned above the conveying module 1, and the inner shell 212 is positioned between the drive shaft and the driven shaft. The outer shell 211 and the inner shell 212 together form a drying cavity 24. The blower motor 22 is positioned on top of the outer shell 211, and the agitator blade 23 is positioned inside the drying cavity 24. The blower motor 22 drives the agitator blade 23 to rotate. Specifically, the outer shell 211 is positioned above the first support 112 and connected to the top of the first support 112. Together with the inner shell 212 positioned between the drive shaft and the driven shaft, the entire assembly of the conveying module 1 corresponding to the drying module 2 encloses the drying module 2, forming a drying cavity 24 with openings at both ends. The conveying module 1 drives the reinforcing bar 4 to move within the drying cavity 24. The blower motor 22 at the top of the outer casing 211 drives the agitator 23 inside the drying chamber 24 to rotate. The agitator 23 agitates the airflow inside the drying chamber 24, causing the airflow to move in the opposite direction of the first direction. Specifically, the agitator 23 adopts a long cylindrical impeller, and the blower motor 22 and the agitator 23 together form a crossflow fan structure. This arrangement ensures that the airflow inside the drying module 2 is uniform and stable, and the airflow flows along the axial direction of the reinforcing bar 4. While removing moisture from the surface of the reinforcing bar 4, it reduces the radial force between the airflow and the coating, thereby preventing the airflow from damaging the coating.

[0039] In one embodiment, the drying chamber 24 has an inlet 25 and an outlet 26 at both ends, with the outlet 26 being smaller than the inlet 25. The inlet 25 of the drying chamber 24 is the air inlet, and the outlet 26 is the air outlet. The airflow channel of the drying chamber 24 adopts a small inlet and large outlet design. After the airflow is driven by the blower motor 22 and the agitator blades 23, the pressure at the air inlet is greater than the pressure at the air outlet, resulting in a draft effect in the drying chamber 24. This design reduces turbulence when the airflow enters, while the large-diameter outlet further reduces the flow velocity and reduces eddy current generation. This makes the airflow more stable and increases the flow rate and velocity of the airflow in the drying chamber 24, quickly removing moisture from the surface of the reinforcing bar 4, thereby accelerating the drying efficiency.

[0040] Preferably, lifting doors 27 are provided at the feed inlet 25 and the discharge outlet 26. After the lifting doors 27 are provided, the operator can adjust the size of the feed inlet 25 and the discharge outlet 26 as needed, thereby enhancing the overall adjustability of the device.

[0041] In one embodiment, an observation window 28 is provided on the side wall of the sealing housing 21, and the observation window 28 is hinged to the sealing housing 21. Specifically, the observation window 28 allows the operator to observe the drying status of the reinforcing bar 4, adjust the conveying speed and airflow, and thus adjust the drying rate.

[0042] In one embodiment, the drying module 2 further includes a heating mechanism 29, which is located in the middle of the drying module 2. This arrangement ensures that when airflow passes through the heating mechanism 29, it forms hot air, creating a cold-hot-cold airflow zone within the drying chamber 24. After the steel bar 4 is dried by the hot air, its temperature increases, and cold air condenses on the surface of the heated steel bar 4. The subsequent drying chamber not only cools the steel bar 4 but also further removes moisture from its surface, effectively preventing the steel bar 4 from becoming damp again and ensuring the drying effect. Specifically, the heating mechanism 29 can be a heating rod, heating wire, or steam pipe, and is located at the top of the inner shell 212 to reduce heat loss from the hot air.

[0043] Preferably, the heating mechanism 29 and the drying module 2 are arranged in separate sections, that is, the drying chamber 24 is composed of two sections, and the heating mechanism 29 is located between the two sections of the drying chamber 24. The interior of the heating mechanism 29 forms a heating chamber. A fan drives the hot air to flow in the heating chamber, and after the steel bar 4 has been initially dried in the first drying chamber 24, it is allowed to enter the second drying chamber 24 for further cooling and drying. This arrangement allows for independent temperature control of the heating chamber wall, enabling the heating mechanism 29 to perform functions such as thermosetting of the coating while drying. Furthermore, the independent arrangement of the heating mechanism 29 avoids affecting the stability of the airflow inside the drying chamber 24.

[0044] In one embodiment, a purging module 3 is also included, which is disposed at the front end of the drying module 2. The purging module 3 includes a purging air pump 31, a purging pipeline 32, and a liquid collection tank 33. The purging air pump 31 is disposed on the side of the conveying module 1, and blows air from the purging air pump 31 along the second direction to the upper and lower sides of the reinforcing bar 4 through the purging pipeline 32. The liquid collection tank 33 is disposed at the bottom of the conveying module 1 to collect the blown-off droplets. The purging module 3 delivers purging airflow from the side of the conveying module 1 through the purging pipeline 32. The purging airflow flows radially along the reinforcing bar 4. At the same time, the purging airflow on the upper and lower sides of the reinforcing bar 4 does not directly purify the reinforcing bar 4 with the airflow output by the purging air pump 31. Instead, the purging airflow drives the overall airflow in the corresponding area of ​​the reinforcing bar 4, thereby blowing off the droplets and preventing excessive wind force from damaging the coating. Furthermore, compared to axial wind, the droplets are more easily dripped due to the radial airflow, thus accelerating the drying efficiency.

[0045] In one embodiment, the purging module 3 further includes a barrier wall 34, which is disposed above the conveying module 1. The inner wall of the barrier wall 34 is provided with an arc-shaped flow buffer 35 corresponding to the purging pipe 32. After the barrier wall 34 is set, energy loss can be reduced. At the same time, the arc-shaped flow buffer 35 receives the purging airflow and avoids the purging airflow from directly contacting the barrier wall 34, which would cause airflow turbulence. This prevents the turbulent airflow from purging the reinforcing bar 4, thereby avoiding damage to the coating.

[0046] Please refer to Figures 1 to 5 Embodiment 1 of this utility model is as follows:

[0047] A drying device for surface treatment of reinforcing bars is used to automatically dry reinforcing bars 4 after spraying and cleaning. The device includes a conveying module 1 and a drying module 2. The drying module 2 is disposed on the conveying module 1 and blows air into the reinforcing bars 4 in the opposite direction to the conveying direction of the reinforcing bars 4.

[0048] The conveying module 1 includes a fixed bracket 11, a drive mechanism 12, and a conveying chain 13. The drive mechanism 12 is mounted on the fixed bracket 11, and the conveying chain 13 is sleeved on the drive mechanism 12. The conveying chain 13 is distributed along a first direction, and first connecting members 14 distributed along a second direction are spaced apart between the conveying chains 13. Support members 15 are provided on the first connecting members 14, and the support members 15 extend from the first connecting members 14 in a direction away from the conveying chain 13.

[0049] The fixed support 11 includes a fixed base 111, a first support 112, a second support 113, and a third support 114. Ten fixed bases 111 are provided. The third support 114 is arranged vertically on the fixed bases 111. The first supports 112 are distributed along a first direction and arranged between the third supports 114. The second supports 113 are distributed along a second direction and arranged between the third supports 114. The first support 112, the second support 113, and the third support 114 form a frame structure. The drive mechanism 12 and the conveyor chain 13 are arranged inside the first support 112.

[0050] The support member 15 includes a connecting part and a supporting part. One end of the connecting part is connected to the first connecting member 14, and the other end of the connecting part is provided with a supporting part. Each connecting part is provided with two supporting parts, and the included angle between the supporting parts is 120°.

[0051] In this embodiment, four support members 15 are spaced apart on the first connecting member 14. The drive mechanism 12 includes a drive motor, a drive shaft, and a driven shaft. The drive motor is drivenly connected to the drive shaft. The drive shaft and the driven shaft are located at both ends of the fixed bracket 11, and the conveyor chain 13 is sleeved on the drive shaft and the driven shaft. The drying module 2 includes a sealed housing 21, a blower motor 22, and an agitator blade 23. The sealed housing 21 includes an outer shell 211 and an inner shell 212. The outer shell 211 is located above the conveyor module 1, and the inner shell 212 is located between the drive shaft and the driven shaft. The outer shell 211 and the inner shell 212 together form a drying cavity 24. The blower motor 22 is located on the top of the outer shell 211, and the agitator blade 23 is located inside the drying cavity 24. The blower motor 22 drives the agitator blade 23 to rotate.

[0052] In this embodiment, the drying module 2 further includes a heating mechanism 29, and the drying chamber 24 is provided in two sections, with the heating mechanism 29 disposed between the two sections of the drying chamber 24.

[0053] In this embodiment, a purging module 3 is also included, which is disposed at the front end of the drying module 2. The purging module 3 includes a purging air pump 31, a purging pipeline 32, and a liquid collection tank 33. The purging air pump 31 is disposed on the side of the conveying module 1, and the purging air pump 31 blows air to the upper and lower sides of the reinforcing bar 4 along the second direction through the purging pipeline 32. The liquid collection tank 33 is disposed at the bottom of the conveying module 1 and is used to collect the blown-down liquid droplets.

[0054] The working principle of this utility model is as follows: The operator simultaneously places four coated steel bars 4 onto the support part of the support member 15. The support member 15 is driven by the first connecting member 14, causing the steel bars 4 to move along the first direction. After the steel bars 4 enter the blowing module 3, the droplets on the steel bars 4 drip into the liquid collection tank 33 under the action of radial airflow. The blew-off steel bars 4 enter the drying module 2, where the moisture evaporates under the action of axial airflow in the drying chamber 24. After preliminary drying to stabilize the coating, they enter the heating mechanism 29, where they are fully dried and the coating is cured under the action of hot air. The steel bars 4 after hot air drying are continued to be conveyed, cooled in the subsequent drying chamber 24, and the condensed moisture is dried, thereby completing the drying operation.

[0055] Although this document uses numerous terms such as conveying module, fixed bracket, fixed seat, first bracket, second bracket, third bracket, drive mechanism, conveying chain, first connector, support component, drying module, sealing shell, outer shell, inner shell, blower motor, agitator blade, drying chamber, inlet, outlet, lifting door, observation window, heating mechanism, purging module, purging pump, purging pipeline, liquid collection tank, barrier wall, arc-shaped flow buffer, and reinforcing steel, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A drying device for surface treatment of reinforcing bars, used for automatically drying reinforcing bars (4) after spraying and cleaning, characterized in that, include: Conveying module (1) and drying module (2); the drying module (2) is disposed on the conveying module (1), and the drying module (2) blows air to the steel bar (4) in the opposite direction to the conveying direction of the steel bar (4); The conveying module (1) includes a fixed bracket (11), a driving mechanism (12), and a conveying chain (13). The driving mechanism (12) is mounted on the fixed bracket (11), and the conveying chain (13) is sleeved on the driving mechanism (12). The conveying chain (13) is distributed along a first direction, and first connecting members (14) distributed along a second direction are spaced apart between the conveying chains (13). Supporting members (15) are provided on the first connecting members (14), and the supporting members (15) extend from the first connecting members (14) in a direction away from the conveying chain (13).

2. The drying apparatus for steel bar surface treatment according to claim 1, characterized in that: The support member (15) includes a connecting part and a supporting part. One end of the connecting part is connected to the first connecting member (14), and the other end of the connecting part is provided with the supporting part. Each connecting part is provided with two supporting parts, and the included angle between the supporting parts is less than 180°.

3. The drying apparatus for steel bar surface treatment according to claim 1, characterized in that: Multiple support members (15) are spaced apart on the first connector (14).

4. The drying apparatus for steel bar surface treatment according to claim 1, characterized in that: The drive mechanism (12) includes a drive motor, a drive shaft and a driven shaft. The drive motor is driven and connected to the drive shaft. The drive shaft and the driven shaft are disposed at both ends of the fixed bracket (11). The conveyor chain (13) is sleeved on the drive shaft and the driven shaft.

5. The drying apparatus for steel bar surface treatment according to claim 4, characterized in that: The drying module (2) includes a sealed housing (21), a blower motor (22), and an agitator blade (23). The sealed housing (21) includes an outer shell (211) and an inner shell (212). The outer shell (211) is located above the conveying module (1), and the inner shell (212) is located between the drive shaft and the driven shaft. The outer shell (211) and the inner shell (212) together form a drying cavity (24). The blower motor (22) is located on the top of the outer shell (211), and the agitator blade (23) is located inside the drying cavity (24). The blower motor (22) drives the agitator blade (23) to rotate.

6. The drying apparatus for steel bar surface treatment according to claim 5, characterized in that: The drying chamber (24) has an inlet (25) and an outlet (26) at both ends, and the outlet (26) is smaller than the inlet (25).

7. The drying apparatus for steel bar surface treatment according to claim 5, characterized in that: The side wall of the sealed housing (21) is provided with an observation window (28), and the observation window (28) is hinged to the sealed housing (21).

8. The drying apparatus for steel bar surface treatment according to claim 1, characterized in that: The drying module (2) also includes a heating mechanism (29), which is located in the middle of the drying module (2).

9. The drying apparatus for steel bar surface treatment according to claim 1, characterized in that: It also includes a purging module (3), which is disposed at the front end of the drying module (2); The purging module (3) includes a purging air pump (31), a purging pipeline (32), and a liquid collection tank (33). The purging air pump (31) is located on the side of the conveying module (1). The purging air pump (31) blows air along the second direction to the upper and lower sides of the steel bar (4) through the purging pipeline (32). The liquid collection tank (33) is located at the bottom of the conveying module (1) and is used to collect the blown-down liquid droplets.

10. The drying apparatus for steel bar surface treatment according to claim 9, characterized in that: The purging module (3) also includes a barrier wall (34), which is disposed above the conveying module (1). The inner wall of the barrier wall (34) is provided with an arc-shaped flow buffer (35) corresponding to the purging pipeline (32).

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