Low-temperature drying equipment for neodymium iron boron rack plating product

Abstract

The utility model provides low-temperature drying equipment for neodymium iron boron rack plating products, which comprises a drying box, a rack plating frame, a high-pressure vortex fan and movable air knives, a row of vertically arranged movable air knives are arranged on each of two opposite inner side walls of the drying box, and the two rows of movable air knives are horizontally and movably arranged; the rack plating frame is hung in the drying box and located between the two rows of movable air knives, air outlets of the movable air knives face the rack plating frame, the high-pressure vortex fan is arranged on the outer side wall of the drying box, and an air outlet pipeline of the high-pressure vortex fan is connected with the movable air knives. The low-temperature compressed air is adopted to blow-dry the product, the drying process is automatically completed, manual participation is not needed, the drying speed is high, the consistency of the surface of the product is good, a plating layer on the surface of the product is not damaged, the product does not need to be turned over, and the edge of the product is not prone to being collided.

Description

Technical Field

[0001] The utility model belongs to the technical field of drying equipment, in particular to low-temperature drying equipment for NdFeB rack plating products. Background Art

[0002] The rack plating process of NdFeB is as follows: degreasing - pickling - ultrasonic - activation - electroplating - drying. In the drying step, since most rack-plated products are large-sized products, the traditional method of drying products mainly uses a hair dryer to dry them, supplemented by manual wiping with a towel. During drying, the products need to be turned over to dry every side of the product. Failure to dry in time often causes the surface of the coating to become flowery and require rework. In addition, NdFeB is a fragile material, and improper operation by tooling workers often causes the product to have bad edges, increasing the risk of product scrapping and greatly reducing the product qualification rate. Utility Model Content

[0003] The purpose of the utility model is to provide a low-temperature drying equipment for NdFeB rack-plated products, which adopts low-temperature compressed air to dry the products and automatically completes the drying process without manual participation. The drying speed is fast, the surface consistency of the product is good, the coating on the surface of the product is not damaged, and the product does not need to be turned over, so the product is not prone to edge chipping.

[0004] In order to achieve the above-mentioned purpose, the solution of the utility model is: a low-temperature drying equipment for NdFeB rack-plated products, including a drying box, a rack-plating rack, a high-pressure vortex fan, and a movable air knife. A row of vertically arranged movable air knives are provided on the two opposite inner walls of the drying box, and the two rows of movable air knives are both horizontally movable. The rack-plating rack is hung inside the drying box and is located between the two rows of movable air knives. The air outlet of the movable air knife is set toward the rack-plating rack. The high-pressure vortex fan is set on the outer wall of the drying box, and the air outlet duct of the high-pressure vortex fan is connected to the movable air knife to blow the low-temperature compressed air out through the air outlet of the movable air knife to dry the product.

[0005] Furthermore, a chain transmission mechanism is provided on the inner side wall of the drying box, and the movable air knife is installed on the chain transmission mechanism, and the chain transmission mechanism drives the movable air knife to move horizontally.

[0006] Furthermore, the chain transmission mechanism includes a transmission chain, a slider and two guide rods. The two guide rods are horizontally fixed on the inner wall of the drying box. The transmission chain is arranged between the two guide rods, and sprockets are matched at both ends of the transmission chain; the two ends of the slider are respectively slidably connected to the two guide rods, and the middle part of the slider is provided with a locking structure that is engaged with the transmission chain, and the movable air knife is fixed on the slider.

[0007] Furthermore, the slider is also provided with a vertically arranged spray pipe, and the spray pipe is provided with a plurality of vertically arranged spray heads, and the spray heads are arranged toward the plating rack.

[0008] Further, the high-pressure vortex fan is further provided with an air inlet pipeline in communication with the inside of the drying box.

[0009] Further, the inside of the air outlet pipeline is provided with a heater, and the inside of the air inlet pipeline is provided with a filter.

[0010] Further, the top of the drying box is provided with an opening, a hanging plating frame is arranged in the inside of the drying box from the opening, the top of the hanging plating frame is provided with a hanger, both ends of the hanger are hung on the two side walls of the top of the drying box, and the top of the drying box is provided with a waterproof cover plate on both sides of the hanger; and the top of the drying box is further provided with an induction module for inducting whether the hanging plating frame is in place.

[0011] Further, the two side walls of the top of the drying box are both provided with a V-shaped clamping seat, both ends of the hanger are provided with a clamping block matched with the clamping seat, and the bottom of the clamping block is in a reverse conical shape matched with a V-shaped clamping hole of the clamping seat.

[0012] Further, one end of the hanger is further provided with a positioning rod, when the clamping block is matched with the clamping seat, the positioning rod falls into the induction range of the induction module, and the induction module inductes that the hanging plating frame is in place.

[0013] Further, the bottom of the drying box is provided with a condensing system for condensing water droplets in air and discharging the water droplets out of the drying box.

[0014] After the above scheme is adopted, the beneficial effects of the present application are as follows:

[0015] The present application is provided with a row of movable air knives on both side walls of the drying box, the hanging plating frame is located between the two rows of movable air knives, the air outlet pipeline of the high-pressure vortex fan is connected with the movable air knives to blow out the low-temperature compressed air through the air outlets of the movable air knives, the air outlets of the movable air knives face the hanging plating frame, and the products after hanging plating are installed on the hanging plating frame, so that the movable air knives can blow the low-temperature compressed air to the products on the hanging plating frame to dry the products, and after the high-pressure vortex fan is started, the movable air knives also start to move horizontally and reciprocally to move and sweep the moisture on the surface of the products, so that all the products can be dried quickly, the drying process is automatically completed without manual participation in turning over the products, the surface consistency of the products is good, the plating layer on the surface of the products is not damaged, the labor cost is saved, and a plurality of hanging plating frames can be hung at one time, so that the products on the plurality of hanging plating frames can be dried at one time, and the drying efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of the present application;

[0017] Figure 2 It is a side view of the present application;

[0018] Figure 3 It is a top view of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model in which the spray pipe and the movable air knife are installed on the chain transmission mechanism;

[0020] Figure 5 This is a structural diagram of the cooperation between the plating rack and the drying box of the utility model.

[0021] Description of labels:

[0022] 1. Drying box; 11. Opening; 12. Water-proof fog cover; 13. Sensing module; 14. Card seat; 2. High-pressure vortex fan; 21. Air outlet duct; 22. Air inlet duct; 23. Heater; 24. Filter; 3. Mobile air knife; 4. Condensation system; 5. Chain transmission mechanism; 51. Drive chain; 52. Slider; 521. Positioning structure; 53. Guide rod; 54. Sprocket; 55. Motor; 6. Spray pipe; 61. Spray head; 7. Hanger; 71. Block; 72. Positioning rod. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-5 As shown, the utility model provides a low-temperature drying equipment for NdFeB rack-plated products, including a drying box 1, a rack (not shown in the figure), a high-pressure vortex fan 2, and a movable air knife 3. The drying box 1 is made of high-quality stainless steel and PP materials, and has good airtightness and thermal insulation performance; a row of vertically arranged movable air knives 3 are provided on the two opposite inner walls of the drying box 1, and the two rows of movable air knives 3 are both horizontally movable. The rack is hung inside the drying box 1 and is located between the two rows of movable air knives 3. The products after rack plating are mounted on the rack, and the high-pressure vortex fan 2 is arranged on the outer wall of the drying box 1. The air outlet duct 21 of the high-pressure vortex fan 2 is connected to the movable air knife 3. After the high-pressure vortex fan 2 is started, the low-temperature compressed air is blown out through the air outlet of the movable air knife 3, and the air outlet of the movable air knife 3 is arranged toward the rack, so that the low-temperature compressed air can be blown to the products on the rack. After the high-pressure vortex blower 2 is started, the mobile air knife 3 also starts to move back and forth horizontally, moving and blowing the moisture on the surface of the product to remove the moisture and reduce the watermark residue on the surface of the product. In addition, multiple mobile air knives 3 are arranged vertically to meet the needs of blowing all products in the vertical direction. The mobile air knife 3 can dry all products by moving horizontally. The efficiency is high and the drying process is completed automatically. There is no need for manual participation in turning the product. The product surface has good consistency and does not damage the coating on the surface of the product, saving labor costs.

[0025] Key references Figure 1 The high-pressure vortex blower 2 is further provided with an air inlet duct 22, which communicates with the interior of the drying box 1. The high-pressure vortex blower 2 first draws air from the drying box 1 through the air inlet duct 22, compresses it, and then blows the compressed air out through the air outlet duct 21, achieving air circulation. Furthermore, a heater 23 is provided within the air outlet duct 21. Heater 23 controls the air temperature to approximately 40°C with an accuracy error of no more than 1°C, achieving low-temperature compressed air drying of products and preventing product deformation or damage that may occur due to high-temperature drying. Furthermore, since the air circulates, compresses, and rubs during continuous operation of the high-pressure vortex blower 2, the air temperature gradually rises, which can easily cause burns to workers. Control by heater 23 prevents burns to workers and improves the safety of the equipment. Furthermore, a filter 24 is provided within the air inlet duct 22 to filter the drawn-in air, effectively removing impurities such as dust and foreign matter, ensuring the cleanliness of the low-temperature compressed air and thus preventing scratches on the products caused by impurities during the drying process.

[0026] Key references Figure 1 and Figure 2 A condensation system 4 is provided at the bottom of the drying box 1. The condensation system 4 is used to condense moisture in the air into water droplets and discharge the water droplets out of the drying box 1 to ensure that the gas used for drying can remain dry. The condensation system 4 can specifically perform condensation in the form of a cooling coil. At the same time, a waste pipe or waste outlet (not shown in the figure) must be provided to discharge the condensed water droplets out of the drying box 1.

[0027] Key references Figure 4 The movable air knife 3 can be driven by a chain transmission mechanism 5 or a transmission mechanism such as a cylinder or a screw. In this embodiment, a chain transmission mechanism 5 is preferably used. The chain transmission mechanism 5 is arranged on the inner wall of the drying box 1, and the movable air knife 3 is installed on the chain transmission mechanism 5. Specifically, the chain transmission mechanism 5 includes a transmission chain 51, a slider 52 and two guide rods 53. The two guide rods 53 are horizontally fixed on the inner wall of the drying box 1. The transmission chain 51 is arranged between the two guide rods 53, and the two ends of the transmission chain 51 are equipped with Sprocket 54, sprocket 54 is driven by motor 55, and motor 55 can be arranged inside or outside the drying box 1; the slider 52 is slidably connected to the guide rod 53, and the guide rod 53 has a guiding function. The middle part of the slider 52 is provided with a clamping structure 521 for clamping the chain. The movable air knife 3 is fixed on the slider 52. When it is necessary to drive the movable air knife 3 to move, the transmission chain 51 is started, and then the clamping structure 521 clamps the chain. The chain will drive the slider 52 to move horizontally, and the movable air knife 3 can move with the slider 52 to realize mobile blowing of the product.

[0028] Preferably, the slider 52 is slidably connected to the guide rod 53 through a pulley. Pulleys (not shown in the figure) are provided at both ends of the slider 52. The outer periphery of the pulley cooperates with the guide rod 53. The setting of the pulley makes the sliding of the slider 52 more stable and smooth.

[0029] Specifically, two rows of movable air knives 3 can be respectively arranged on the front and rear side walls of the drying box 1, and the movable air knives 3 can move back and forth left and right. The high-pressure vortex fan 2 can be arranged on the left outer wall or the right outer wall of the drying box 1, and will not interfere with the chain transmission mechanism 5, thereby reducing the occupied space.

[0030] The rack-plated products may have abnormal problems such as yellowing and flowery surface caused by residual solution of passivation liquid or cleaning acid due to unclean water in the washing tank. In the past, the solution to this problem was to frequently replace the cleaning water, which would cause a large waste of water resources, or to add a dedicated spraying station on the production line to ensure product cleanliness. Adding a spraying station has the disadvantages of increasing the cost of the initial line construction and occupying a large space, wasting site space. Therefore, the utility model also provides a spray cleaning device in the drying box 1 to solve this problem. The spray cleaning device is a spray pipe 6, which is vertically arranged on the slider 52. The spray pipe 6 is provided with a plurality of vertically arranged spray heads 61. The spray heads 61 are arranged toward the rack-plating rack. The spray pipe 6 can move horizontally like the movable air knife 3. The spray pipe 6 and the movable air knife 3 are both driven by the chain transmission mechanism 5. There is no need to set up an additional driving mechanism, which saves costs. It should be noted that the spray pipe 6 and the movable air knife 3 cannot be started at the same time. After the products after rack plating are placed in the drying box 1 through the rack plating rack, the spray pipe 6 and the chain transmission mechanism 5 must be started first, so that the spray pipe 6 moves while spraying to clean the surface of all products. After cleaning is completed, the spray pipe 6 is closed and the movable air knife 3 is started again for purging. The setting of the spray pipe 6 can further clean the solution residue on the surface of the product, ensuring the quality of the product without occupying the limited space of the original line. The spray pipe 6 can be equipped with a dedicated hot and cold integrated machine to supply water, and the temperature of the spray water can be set according to the characteristics of different NdFeB rack plating products.

[0031] Key references Figure 5The drying box 1 has an opening 11 at the top, through which a plating rack can be placed. A hanger 7 is provided on the top of the plating rack, with both ends of the hanger 7 mounted on the two side walls of the top of the drying box 1, allowing the plating rack to be placed in the drying box 1 to a drying position. Specifically, the ends of the hanger 7 are mounted on the front and rear side walls of the top of the drying box 1, allowing the plating rack to be parallel to the spray pipe 6 and the movable air knife 3. A waterproof fog cover 12 is provided on both sides of the hanger 7 at the top of the drying box 1. The waterproof fog cover 12 is used to open and close the opening 11. A sensing module 13 is also provided on the top of the drying box 1. The sensing module 13 is used to sense whether the plating rack is in place. The sensing module 13, the high-pressure vortex fan 2, the chain transmission mechanism 5, the spray pipe 6, the waterproof fog cover 12 and other mechanisms are all connected to a control center signal. After the sensing module 13 senses that the plating rack has arrived at the drying position, it sends a signal to the control center. The control center controls the waterproof fog cover 12 to close the opening 11, and then starts other devices to start the drying operation.

[0032] Preferably, both side walls of the top of the drying box 1 are provided with a V-shaped holder 14, and both ends of the hanger 7 are provided with a block 71 that engages with the holder 14. The bottom of the block 71 is an inverted cone that can cooperate with the V-shaped socket on the holder 14, so that the plating rack can be stably hung in the drying box 1, and the position of the hanger 7 and the plating rack will not shift. One end of the hanger 7 is also provided with a positioning rod 72. When the block 71 cooperates with the holder 14, the positioning rod 72 is located above the sensing module 13 or contacts the sensing module 13, that is, the positioning rod 72 falls into the sensing range of the sensing module 13. The sensing module 13 senses that the plating rack has reached the drying position, and the waterproof fog cover 12 closes the opening 11, and the drying operation begins.

[0033] The drying process of the present invention is specifically as follows: first, the spray cleaning time and the purge time are set in advance, and then the crane (not shown in the figure) drives the hanger 7 to be hung on the top of the drying box 1, and the blocks 71 at both ends of the hanger 7 are inserted into the holder 14, and the positioning rod 72 falls into the sensing range of the sensing module 13. After the sensing module 13 senses the positioning rod 72, the waterproof fog cover 12 closes the opening 11, the transmission chain 51 is started, and the positioning structure 521 on the slider 52 clamps the transmission chain 51, and the slider 52 moves back and forth with the chain. At the same time, the spray pipe 6 is turned on to clean the surface of the product after plating. After the cleaning reaches the set time, the spray pipe 6 is closed, and then the high-pressure vortex fan 2 is started to make the mobile wind knife 3 spray low-temperature compressed air to move and purge the moisture on the surface of the product to dry the surface of the product. After the drying reaches the set time, the high-pressure vortex fan 2 is turned off, and the dried product is moved out of the drying box 1 to complete the drying operation.

[0034] The utility model does not require manual participation in the drying process, and the drying is all completed automatically by the equipment, with good cleaning and drying effects, and has the advantages of low labor cost and small space occupation.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. Any equivalent changes made based on the key design of this case shall fall within the scope of protection of this case.

Claims

1. A low-temperature drying equipment for NdFeB rack-plated products, characterized by: It includes a drying box, a plating rack, a high-pressure vortex fan, and a movable air knife. A row of vertically arranged movable air knives are provided on the two opposite inner walls of the drying box, and the two rows of movable air knives are arranged to move horizontally. The plating rack is hung inside the drying box and is located between the two rows of movable air knives. The air outlet of the movable air knife is set toward the plating rack. The high-pressure vortex fan is set on the outer wall of the drying box, and the air outlet duct of the high-pressure vortex fan is connected to the movable air knife to blow out the low-temperature compressed air through the air outlet of the movable air knife to dry the product.

2. The low-temperature drying equipment for NdFeB rack plating products according to claim 1, characterized in that: A chain transmission mechanism is provided on the inner side wall of the drying box, and the movable air knife is installed on the chain transmission mechanism. The chain transmission mechanism drives the movable air knife to move horizontally.

3. The low-temperature drying equipment for NdFeB rack plating products according to claim 2, characterized in that: The chain transmission mechanism includes a transmission chain, a slider and two guide rods. The two guide rods are horizontally fixed on the inner wall of the drying box. The transmission chain is arranged between the two guide rods. Both ends of the transmission chain are equipped with sprockets; the two ends of the slider are respectively slidably connected to the two guide rods, and the middle part of the slider is provided with a locking structure that is engaged with the transmission chain. The movable air knife is fixed on the slider.

4. The low-temperature drying equipment for NdFeB rack-plated products according to claim 3, characterized in that: The sliding block is also provided with a vertically arranged spray pipe, and the spray pipe is provided with a plurality of vertically arranged spray heads, and the spray heads are arranged toward the plating rack.

5. The low-temperature drying equipment for NdFeB rack plating products according to claim 1, characterized in that: The high-pressure vortex blower is further provided with an air inlet duct, which is communicated with the interior of the drying box.

6. The low-temperature drying equipment for NdFeB rack-plated products according to claim 5, characterized in that: A heater is provided inside the air outlet duct, and a filter is provided inside the air inlet duct.

7. The low-temperature drying equipment for NdFeB rack-plated products according to claim 1, characterized in that: The top of the drying box is provided with an opening, and the plating rack is placed into the drying box from the opening. A hanger is provided on the top of the plating rack, and the two ends of the hanger are hung on the two side walls of the top of the drying box. The top of the drying box is provided with waterproof fog covers on both sides of the hanger; the top of the drying box is also provided with a sensing module, and the sensing module is used to sense whether the plating rack is in place.

8. The low-temperature drying equipment for NdFeB rack-plated products according to claim 7, characterized in that: Both side walls of the top of the drying box are provided with V-shaped holders, and both ends of the hanger are provided with blocks that cooperate with the holders. The bottom of the block is inverted cone shape to cooperate with the V-shaped socket of the holder.

9. The low-temperature drying equipment for NdFeB rack-plated products according to claim 8, characterized in that: One end of the hanger is further provided with a positioning rod. When the clamping block cooperates with the clamping seat, the positioning rod falls into the sensing range of the sensing module, and the sensing module senses that the plating rack is in place.

10. The low-temperature drying equipment for NdFeB rack-plated products according to claim 1, characterized in that: A condensation system is provided at the bottom of the drying box to condense moisture in the air into water droplets and discharge the water droplets out of the drying box.

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