A PC steel rod drying device

Abstract

The invention discloses a PC steel rod drying device, which belongs to the field of PC steel rod processing. The device comprises a drying rack and a feeding rack, wherein two groups of rotating shafts with intermittent motion are rotatably connected inside the drying rack, and the outer walls of the two groups of rotating shafts are transmission-connected with conveyor belts, and the outer walls of the conveyor belts are equidistantly arranged with partitions, the two groups of driving shafts are rotatably connected inside the drying rack, and the outer walls of the two groups of driving shafts are transmission-connected with two groups of transmission belts, and the two groups of transmission belts are respectively located on both sides of the conveyor belts, and an air jet pipe is fixedly connected to the inner wall of the top of the drying rack, and a plurality of air outlet holes with equidistant arrays are provided at the bottom of the air jet pipe; the steel rods are intermittently conveyed by placing them between every two groups of partitions on the conveyor belt, and the driving shaft drives the transmission belt to rotate, and the transmission belt is in contact with the bottom of the steel rod, and the friction force drives the steel rods to rotate between the two groups of partitions to be dried by the air outlet holes, thereby improving the drying effect and preventing moisture from remaining on the outer walls of the steel rods.

Description

Technical Field

[0001] The invention relates to the technical field of PC steel bar processing, and in particular to a PC steel bar drying device. Background Art

[0002] PC steel bars have been widely used in foreign countries for prestressed components such as high-strength and stress-resistant concrete centrifugal pipe piles, electric poles, viaduct piers, and railway sleepers due to their high strength and toughness, low relaxation, strong bond strength with concrete, good weldability, upset forging properties, and material saving (for example, φ11mm PC steel bars can replace φ20mm hot-rolled steel bars). They have a very broad market internationally, especially in Asia.

[0003] During the PC steel bar processing process, the PC steel bar needs to be cleaned and then dried. This is usually done in a drying cabinet. However, after drying, the PC steel bar needs to be transferred to a transfer vehicle, which is cumbersome and not conducive to rapid transportation. Moreover, the drying process is usually done in a static manner, which can easily lead to poor drying results in some areas. Summary of the Invention

[0004] In order to overcome the above technical problems, the purpose of the present invention is to provide a PC steel bar drying device to solve the problem that in the prior art, the PC steel bar needs to be cleaned during the processing of the PC steel bar, and the PC steel bar needs to be dried after cleaning. Generally, the PC steel bar is placed in a box for drying, but after drying, the PC steel bar needs to be transferred to a transfer vehicle, which causes troublesome operation and is not conducive to the operation of the PC steel bar.

[0005] It is suitable for quick transportation. And when drying, it is usually left to dry, which may lead to poor drying effect in some areas.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A PC steel rod drying device includes a drying rack and a feeding rack. Two groups of intermittent rotating shafts are rotatably connected inside the drying rack. The outer walls of the two groups of rotating shafts are transmission-connected to conveyor belts. The outer walls of the conveyor belts are equidistantly arrayed with partitions. Two groups of drive shafts are rotatably connected inside the drying rack. The outer walls of the two groups of drive shafts are transmission-connected to two groups of transmission belts. The two groups of transmission belts are respectively located on both sides of the conveyor belts. An air jet is fixedly connected to the inner wall of the top of the drying rack. The bottom of the air jet is provided with multiple groups of air outlet holes in equidistant arrays.

[0008] As a further solution of the present invention: a driving motor is fixedly connected to the inner wall of one side of the drying rack, a half gear is fixedly connected to the output end of the driving motor, one end of a group of rotating shafts passes through the drying rack and is fixedly connected to a transmission gear, the half gear is meshed with the transmission gear, and the output end of the driving motor is connected to a group of driving shafts through a transmission chain.

[0009] As a further solution of the present invention: the heights of the two groups of transmission belts are higher than the height of the conveyor belt.

[0010] As a further solution of the present invention: a bidirectional screw is rotatably connected inside the drying rack, two groups of sliders are threadedly connected to the outer wall of the bidirectional screw, and the bottoms of the two groups of sliders are connected to limit plates. An adjustment motor is fixedly connected to one side of the drying rack, and the output end of the adjustment motor is fixedly connected to one end of the bidirectional screw.

[0011] As a further solution of the present invention: the bottoms of the two groups of sliders are fixedly connected to sliding sleeves, the sliding sleeves are slidably connected to the outer wall of the air injection pipe, and the opposite sides of the two groups of sliding sleeves are fixedly connected to sealing plates, which are attached to the air outlet.

[0012] As a further solution of the present invention: two groups of transmission shafts are rotatably connected inside the feeding rack, and the outer walls of the two groups of transmission shafts are transmission-connected with conveyor belts, and the outer wall of the conveyor belt has multiple groups of baffles in an equidistant array.

[0013] As a further solution of the present invention: a collecting box is fixedly connected to the inner wall of the bottom of the drying rack, and a drain pipe is fixedly connected to the bottom of the collecting box.

[0014] As a further solution of the present invention: an air supply pump and an air intake frame are fixedly connected to the top of the drying rack, the output end of the air supply pump is connected to one end of the air injection pipe, the air intake end of the air supply pump is connected to the air intake frame, and a heating wire and a filter plate are fixedly connected inside the air intake frame.

[0015] Beneficial effects of the present invention:

[0016] In the present invention, the steel rods are placed on the conveyor belt between every two groups of partitions for intermittent transmission. At the same time, the driving shaft drives the transmission belt to rotate. The transmission belt is in contact with the bottom of the steel rod. The friction force drives the steel rod to rotate between the two groups of partitions to be blown dry by the air outlet, thereby improving the drying effect and avoiding moisture residue on the outer wall of the steel rod.

[0017] In the present invention, the steel rods are transported by the conveyor belt and dropped onto the feeding rack to counteract the baffle. Then the conveyor shaft drives the conveyor belt to rotate, and the conveyor belt drives the baffle to move. The steel rods follow the baffle to move downward on the feeding rack due to their own weight, thereby preventing the steel rods from tilting and clogging on the feeding rack, and improving the stability of the steel rods when being transported from the feeding rack to the transport cart. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2This is a left-side structural schematic diagram of the drying rack of the present invention;

[0021] Figure 3 This is a schematic diagram of the main structure of the drying rack of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the air jet pipe in the present invention;

[0023] Figure 5 It is a schematic diagram of the internal structure of the air intake frame in the present invention.

[0024] In the figure: 1. Drying rack; 101. Loading table; 2. Feeding rack; 3. Rotating shaft; 301. Conveyor belt; 302. Partition; 4. Driving shaft; 401. Transmission belt; 5. Jet pipe; 501. Air outlet; 502. Bidirectional screw rod; 503. Slider; 504. Sleeve; 505. Sealing plate; 506. Adjustment motor; 507. Limiting plate; 6. Air supply pump; 601. Air intake rack; 602. Heating wire; 603. Filter plate; 7. Conveying shaft; 701. Conveyor belt; 702. Baffle; 8. Collection box; 801. Drain pipe; 9. Driving motor; 901. Half gear; 902. Transmission gear; 903. Transmission chain. Implementation Method

[0025] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] like Figure 1-Figure 5As shown, a PC steel rod drying device includes a drying rack 1 for drying steel rods and a feeding rack 2 for feeding the dried steel rods. Two sets of rotating shafts 3 are connected to the drying rack 1 for intermittent motion. The outer walls of the two sets of rotating shafts 3 are connected to conveyor belts 301 for conveying the steel rods. The outer wall of the conveyor belt 301 is equidistantly arrayed with partitions 302 for separating and limiting the steel rods. A loading platform 101 is fixedly connected to one side of the drying rack 1. The height of the loading platform 101 is higher than the height of the conveyor belt 301, so that the steel rods can be placed conveniently. The steel rod is placed on the conveyor belt 301, and two sets of drive shafts 4 are rotatably connected inside the drying rack 1. The outer walls of the two drive shafts 4 are connected with two sets of transmission belts 401. The two sets of transmission belts 401 are respectively located on both sides of the conveyor belt 301. The rotation direction of the transmission belt 401 is opposite to that of the conveyor belt 301. When the conveyor belt 301 drives the steel rod to stop intermittently, the friction between the transmission belt 401 and the steel rod drives the steel rod to rotate, thereby fully drying the outer wall of the steel rod, improving the drying effect, and drying. The inner wall of the top of the rack 1 is fixedly connected to an air jet pipe 5, and a plurality of air outlet holes 501 in an equidistant array are provided at the bottom of the air jet pipe 5 for drying the steel rods. A driving motor 9 is fixedly connected to the inner wall of one side of the drying rack 1, and a half gear 901 is fixedly connected to the output end of the driving motor 9. One end of a set of rotating shafts 3 passes through the drying rack 1 and is fixedly connected to a transmission gear 902. The half gear 901 is meshed with the transmission gear 902. The output end of the driving motor 9 is connected to a set of driving shafts 4 through a transmission chain 903. The driving motor 9 is connected to the transmission gear 902 through the half gear 903. 01 is intermittently meshed with the transmission gear 902, thereby driving the conveyor belt 301 on the outer wall of the rotating shaft 3 to perform intermittent movement. On the one hand, it is convenient for the user to have time to place the steel rod on the partition 302, and on the other hand, it increases the time for the steel rod to be blown dry. At the same time, when the half gear 901 is separated from the transmission gear 902, the driving motor 9 continues to drive the driving shaft 4 to rotate through the transmission chain 903, so that the driving shaft 4 drives the conveyor belt 401 to rub against the steel rod, so that the steel rod rotates and is blown dry by the air outlet 501, thereby improving the convenience of transmission control.

[0027] The middle conveyor belt 301 and the transmission belt 401 are both hollowed out to facilitate water discharge.

[0028] The heights of the two sets of transmission belts 401 mentioned above are higher than the height of the transmission belt 301, and the height difference between the transmission belt 401 and the transmission belt 301 is 2 to 10 mm. The specific height difference can be used according to the materials of the transmission belt 301 and the transmission belt 401. When the steel rod moves to the position on the transmission belt 401 under the drive of the conveyor belt 301, most of the weight of the steel rod is applied to the transmission belt 401, increasing the friction between the steel rod and the transmission belt 401, thereby facilitating the transmission belt 401 to drive the steel rod to rotate. The conveyor belt 301 and the transmission belt 401 are made of rubber material, and the surface of the transmission belt 401 is roughened. On the one hand, it avoids friction damage to the steel rod caused by the transmission belt 401, and on the other hand, it increases the friction between the transmission belt 401 and the steel rod. The surface of the conveyor belt 301 is smooth, which facilitates the steel rod to rotate on the conveyor belt 301.

[0029] like Figure 1 、 Figure 2 and Figure 4 As shown, the drying rack 1 mentioned above is internally connected with a bidirectional screw rod 502, and the outer wall of the bidirectional screw rod 502 is threadedly connected with two groups of sliders 503. The top of the two groups of sliders 503 is attached to the inner wall of the top of the drying rack 1 for limited sliding. At the same time, the bottom of the two groups of sliders 503 are connected with a sliding sleeve 504, and the sliding sleeve 504 is slidably connected to the outer wall of the air injection pipe 5. The opposite sides of the two groups of sliding sleeves 504 are fixedly connected with a sealing plate 505, and the sealing plate 505 is attached to the air outlet 501. The bottom of the sliding sleeve 504 is fixedly connected to the limit plate 507. One side of the drying rack 1 is fixedly connected with an adjusting motor 506. The output end of the adjusting motor 506 is fixedly connected to one end of the bidirectional screw rod 502. By starting the adjusting motor 506, the bidirectional screw rod 502 is driven to rotate. The screw rod 502 drives the two sets of sliders 503 to move toward each other, and the two sets of sliders 503 drive the two sets of limit plates 507 to move, and the distance between the two sets of limit plates 507 is adjusted, so as to facilitate the limiting of steel bars of different lengths, avoid the steel bars on the conveyor belt 301 from falling due to different lengths at both ends, and improve the stability of transmission. At the same time, when the slider 503 adjusts the limit plate 507, it drives the sliding sleeve 504 to slide on the outer wall of the air jet pipe 5, so that the sealing plate 505 on the side wall of the sliding sleeve 504 seals and blocks the air outlet 501 at the outer position of the two sets of limit plates 507, and avoids the air outlet 501 at the outer position dispersing the pressure of the paint spraying at the air outlet 501 at the bottom of the air jet pipe 5 between the two sets of limit plates 507, thereby improving the drying effect.

[0030] like Figure 1As shown, the feed rack 2 mentioned above is internally connected to two groups of conveying shafts 7 for rotation, and the outer walls of the two groups of conveying shafts 7 are connected to conveyor belts 701 for transmission. The outer wall of the conveyor belt 701 has multiple groups of baffles 702 in an equidistant array. When the conveyor belt 301 drives the steel rod to fall onto the feed rack 2, the baffles 702 are used to resist the steel rod, so that the steel rod stays on the feed rack 2, and then the conveying shaft 7 drives the conveyor belt 701 to rotate, and the conveyor belt 701 drives the baffle 702 to rotate, so as to slowly feed the steel rods on the feed rack 2, thereby improving the stability of feeding and preventing the steel rods from tilting on the feed rack 2, thereby facilitating the steel rods to be sent to the transport cart for placement.

[0031] like Figure 1 Figure 2 As shown, the bottom inner wall of the drying rack 1 is fixedly connected to a collecting box 8, and the bottom of the collecting box 8 is fixedly connected to a drain pipe 801. The collecting box 8 collects and stores the moisture blown out from the air outlet 501 on the outer wall of the steel rod to prevent the moisture from flowing everywhere.

[0032] like Figure 1 、 Figure 2 and Figure 5 As shown, the top of the drying rack 1 is fixedly connected with an air supply pump 6 and an air intake rack 601, the output end of the air supply pump 6 is connected to one end of the air jet pipe 5, and the air intake end of the air supply pump 6 is connected to the air intake rack 601, and the air intake rack 601 is fixedly connected with an electric heating wire 602 and a filter plate 603. The electric heating wire 602 is first started to heat the air inside the air intake rack 601, and then the air supply pump 6 is started. The air supply pump 6 draws air from the air intake rack 601, and the air entering the air intake rack 601 is first filtered through the filter plate 603 and then heated. After being drawn by the air supply pump 6, the air is sent into the air jet pipe 5, and then blown downward through the air outlet 501 at the bottom of the air jet pipe 5 to dry the steel rods conveyed on the conveyor belt 301. The gap movement of the conveyor belt 301 will cause the steel rods to stay under the air outlet 501 for a period of time, thereby increasing the time for the steel rods to be blown dry and improving the drying effect.

[0033] The working principle of the present invention is as follows: when the user uses it, he places the steel rod on the loading platform 101, and then starts the driving motor 9. The half gear 901 at the output end of the driving motor 9 rotates and engages with the transmission gear 902 to drive the rotating shaft 3 to rotate. The rotating shaft 3 drives the conveyor belt 301 to rotate, and the partition 302 on the outer wall of the transmission belt 301 rotates. When a group of partitions 302 rotates perpendicular to the side wall of the loading platform 101, the steel rod on the loading platform 101 is pushed onto the partition 302, and then the partition 302 drives the steel rod to rotate upward and place it on the conveyor belt 301. Then the half gear 901 separates from the transmission gear 902, and the conveyor belt 301 stops rotating. At the same time, the output end of the driving motor 9 is driven by the transmission chain 903. The drive shaft 4 is driven to rotate, and the drive shaft 4 drives the transmission belt 401 to rotate. The rotation direction of the transmission belt 401 is opposite to that of the conveyor belt 301. Then the half gear 901 rotates and continues to engage with the transmission gear 902 to drive the conveyor belt 301 on the rotating shaft 3 to rotate, and then the steel rods are placed on the next group of partitions 302. At the same time, the conveyor belt 301 drives the previous group of steel rods to move to the bottom of the air injection pipe 5 through the partition 302. At the same time, the steel rods are away from the bottom of the outer walls on both sides of the conveyor belt 301 and are attached to the top of the transmission belt 401. The air supply pump 6 is started, and the air supply pump 6 draws air heated by the electric heating wire 602 and filtered by the filter plate 603 from the inside of the air inlet frame 601, and then sends it to the air injection pipe 5 The air is then ejected from the air outlet 501 at the bottom of the air jet pipe 5, and the ejected air is blown to the upper side of the steel rod to blow out the moisture on the outer wall of the steel rod. The intermittent engagement of the half gear 901 and the transmission gear 902 will cause the conveyor belt 301 to drive the steel rod to stay under the air outlet 501 for a period of time, thereby increasing the drying time. At the same time, the friction between the rotation of the transmission belt 401 and the steel rod drives the steel rod to rotate between the two sets of partitions 302. When the steel rod rotates, it receives the air ejected from the air outlet 501 to remove moisture, thereby improving the comprehensiveness of the drying and avoiding moisture from remaining on the outer wall of the steel rod. After the steel rod is dried, the drive motor 9 continues to drive through the half gear 901 and the transmission gear 902. Intermittent motion allows the conveyor belt 301 to drive the steel rod to continue moving. When the steel rod moves to one end of the conveyor belt 301, the steel rod rolls onto the feed rack 2 through the conveyor belt 301 and the partition 302, and then hits the baffle 702. At the same time, the conveying motor (not shown in the figure) is started to drive the conveyor shaft 7 to rotate, and the conveyor shaft 7 drives the conveyor belt 701 to rotate, and the conveyor belt 701 drives the baffle 702 to rotate. The baffle 702 limits the steel rod to prevent the steel rod from tilting left and right when moving downward on the feed rack 2. Then, the steel rod slowly moves downward on the feed rack 2 driven by the baffle 702, and then the steel rod removed from the feed rack 2 is received by the transport cart, thereby improving the convenience of receiving materials.

[0034] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A PC steel rod drying device, comprising a drying rack (1) and a feeding rack (2), characterized in that: The drying rack (1) is internally rotatably connected to two groups of rotating shafts (3) that move intermittently. The outer walls of the two groups of rotating shafts (3) are connected to conveyor belts (301) in a transmission manner. The outer walls of the conveyor belts (301) are provided with partitions (302) in an equidistant array. The drying rack (1) is internally rotatably connected to two groups of driving shafts (4). The outer walls of the two groups of driving shafts (4) are connected to two groups of driving belts (401). The two groups of driving belts (401) are respectively located on both sides of the conveyor belt (301). The inner wall of the top of the drying rack (1) is fixedly connected to an air jet pipe (5). The bottom of the air jet pipe (5) is provided with a plurality of air outlet holes (501) in an equidistant array. The heights of the two sets of transmission belts (401) are higher than the height of the conveyor belt (301), and the rotation direction of the transmission belts (401) is opposite to the rotation direction of the conveyor belt (301), so that when the steel rod is driven by the conveyor belt (301) to move to the position of the transmission belt (401), the friction between the transmission belt (401) and the steel rod drives the steel rod to rotate; The feeding rack (2) is internally rotatably connected to two groups of transmission shafts (7), and the outer walls of the two groups of transmission shafts (7) are transmission-connected to a conveyor belt (701), and the outer wall of the conveyor belt (701) has multiple groups of baffles (702) arranged in an equidistant array; The steel rod is transported by the conveyor belt (301) and falls onto the feeding rack (2) to contact the baffle (702). Then, the conveyor shaft (7) drives the conveyor belt (701) to rotate, and the conveyor belt (701) drives the baffle (702) to move. The steel rod moves downward on the feeding rack (2) following the baffle (702) due to its own weight.

2. A PC steel rod drying device according to claim 1, characterized in that: A driving motor (9) is fixedly connected to the inner wall of one side of the drying rack (1); a half gear (901) is fixedly connected to the output end of the driving motor (9); one end of a set of rotating shafts (3) passes through the drying rack (1) and is fixedly connected to a transmission gear (902); the half gear (901) is meshed and connected to the transmission gear (902); and the output end of the driving motor (9) is transmission-connected to a set of driving shafts (4) via a transmission chain (903).

3. A PC steel rod drying device according to claim 1, characterized in that: The drying rack (1) is internally rotatably connected to a bidirectional screw rod (502), the outer wall of the bidirectional screw rod (502) is threadedly connected to two sets of sliders (503), the bottoms of the two sets of sliders (503) are both connected to a limit plate (507), and one side of the drying rack (1) is fixedly connected to an adjustment motor (506), the output end of the adjustment motor (506) is fixedly connected to one end of the bidirectional screw rod (502).

4. A PC steel rod drying device according to claim 3, characterized in that: The bottoms of the two groups of sliders (503) are fixedly connected to a sliding sleeve (504), and the sliding sleeve (504) is slidably connected to the outer wall of the air injection tube (5). The opposite sides of the two groups of sliding sleeves (504) are fixedly connected to a sealing plate (505), and the sealing plate (505) is in contact with the air outlet (501).

5. A PC steel rod drying device according to claim 1, characterized in that: A collection box (8) is fixedly connected to the inner wall of the bottom of the drying rack (1), and a drainage pipe (801) is fixedly connected to the bottom of the collection box (8).

6. A PC steel rod drying device according to claim 1, characterized in that: An air supply pump (6) and an air intake frame (601) are fixedly connected to the top of the drying rack (1); an output end of the air supply pump (6) is connected to one end of the air injection pipe (5); an air intake end of the air supply pump (6) is connected to the air intake frame (601); and a heating wire (602) and a filter plate (603) are fixedly connected inside the air intake frame (601).

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