CN108060415B - A blackening treatment device that can dry workpieces and its treatment method - Google Patents

Abstract

The invention belongs to the technical field of surface treatment of metal products, and specifically relates to a blackening treatment device that can dry workpieces, including a blackening tank and a basket. The basket includes a basket body in the shape of a rectangular parallelepiped with an open top. The front wall, rear wall, left wall, right wall and bottom of the main body are all provided with a plurality of second through holes, and also include a drying box and a lifting mechanism; the blackening tank is integrally formed by the upper box and the lower box. The top of the upper box is open, the basket can be stuck in the upper box, and the upper box can contain black liquid. The top and front of the lower box are both open. A plurality of first electric heating coils are detachably installed on the inner wall of the upper box. A fourth through hole is provided at the bottom of the upper box. The number of the fourth through holes is an odd number and is distributed at the bottom of the upper box. A stirring shaft is rotatably installed in the fourth through hole at the center and on the diagonal. A plurality of stirring rods are evenly arranged on the rod wall of the upper box body.

Description

A blackening treatment device that can dry workpieces and its treatment method

Technical field

The invention belongs to the technical field of surface treatment of metal products, and specifically relates to a blackening treatment device that can dry workpieces and a treatment method thereof.

Background technique

Stainless steel is widely used due to its strong corrosion resistance, high strength and exquisite appearance. Blackened stainless steel has matting and heat absorption properties and is widely used in fields such as decoration, instrumentation and mechanical equipment. Blackening is a common method of chemical surface treatment. The principle is to produce an oxide film on the metal surface to isolate air and achieve rust prevention. When the appearance requirements are not high, blackening treatment can be used. The blackening treatment on the surface of steel parts is also called bluing. At present, most blackening processes use mesh baskets to store workpieces, and then put the mesh basket into a blackening tank filled with blackening liquid. After the blackening process is completed, take the mesh basket out of the blackening tank, and then Take the workpiece out of the mesh basket to complete the blackening process.

Although the existing mesh basket design is relatively simple, that is, a mesh box structure (with an open top), due to the large number of workpieces stored in the mesh basket, the blackening liquid in the blackening tank cannot be discharged well. The ground is in good contact with all workpiece surfaces, so the blackening effect is poor. In order to improve the blackening effect, the existing method is to manually stir the blackening liquid to make good contact between the workpiece and the blackening liquid. However, this method undoubtedly increases the workload of workers and greatly reduces work efficiency.

Contents of the invention

The object of the present invention is to provide a blackening treatment device that can dry workpieces, which facilitates the stirring operation of the blackening liquid so that the blackening liquid fully contacts the surface of the workpiece; and the first electric heating coil Setting, the blackening liquid can be heated as needed to further improve the blackening effect; in addition, due to the setting of the second electric heating coil and the hot air stirring mechanism, the blackened workpiece can be dried with hot air circulation, and the drying process The blackening liquid on the middle workpiece just drips into the blackening liquid in the upper box, which saves the amount of blackening liquid and reduces the cost to a certain extent. It also provides the blackening treatment method of the device, the component selection of the blackening liquid, the setting of the mixing parameters of the blackening liquid and the setting of the heating parameters of the first electric heating coil, as well as the setting of the heating parameters of the second electric heating coil and The parameters of the hot air agitation mechanism are set to jointly improve the blackening effect and drying effect. The thickness of the oxide film after blackening treatment is relatively uniform, and the bonding fastness between the oxide film and the workpiece surface is high, which greatly extends the service life of the blackened workpiece. , reducing the cost of use.

In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows:

A blackening processing device that can dry workpieces, including a blackening tank and a basket. The basket includes a basket body in a rectangular parallelepiped shape with an open top. The front wall, rear wall, left wall, and right wall of the basket body are There are multiple second through holes on the wall and bottom, and also include a drying box and a lifting mechanism;

The blackening tank is integrally formed by an upper box and a lower box. The top of the upper box is open. The basket can be stuck in the upper box. The upper box can contain blackening liquid. The top and front of the lower box are open, and a plurality of first electric heating coils are detachably installed on the inner wall of the upper box. A fourth through hole is provided at the bottom of the upper box. The number of the fourth through holes is an odd number and distributed in the center and diagonal line of the bottom of the upper box. A stirring shaft is rotated and installed in the fourth through hole. The stirring shaft is evenly located on the rod wall of the upper box. There are multiple stirring rods. The bottom end of the stirring shaft located on the diagonal line passes through the bottom of the upper box and is rotationally connected to the bottom of the lower box. A gear is fixed on the rod wall of the lower box. , the stirring shaft located in the center is equipped with a first motor under the gear, the two adjacent gears located on the diagonal mesh with each other, the gear at the center meshes with the nearest gear, and the third gear A motor is detachably installed at the bottom of the lower box. The power switches of the first electric heating coil and the first motor are both arranged on the lower box. The open position of the front wall of the lower box is integrally formed with a U-shaped A shaped stopper, which together with the left wall, right wall and bottom of the lower box forms a slot, and a sealing plate that can close the open front wall of the lower box is inserted into the slot. The top surface of the sealing plate is provided with two C-shaped handles, and the left and right walls of the blackened tank are longitudinally provided with symmetrical blind holes. A first cylinder is installed in the blind holes, and the upper The tops of the front wall, rear wall, left wall and right wall of the box are vertically folded outward to form a first outward flange;

The bottom of the basket body is provided with a third through hole at a position corresponding to the fourth through hole, and a hollow guide rod with a closed top is integrally formed on the inner bottom surface of the basket body at a position corresponding to the third through hole. The aperture size of the guide rod is equal to the aperture size of the third through hole. The rod wall of the guide rod is provided with a plurality of first through holes. The first through holes are inclined with a low inside and a high outside. The angle between the through hole and the inner bottom surface of the basket body is 20°-30°. The center of the top surface of the guide rod is recessed to form a groove. The bottom of the groove is provided with a first installation through hole. Internal threads are provided in the inner wall of the groove and the first installation through hole, and a guide cap is detachably installed on the top of the guide rod. The guide cap includes a lower cap body that is in the shape of a hemispherical shell and has an open top. The center of the bottom plane of the lower cap body is vertically convex to form a convex column. The convex column is provided with an external thread. The convex column is threadedly connected to the inner wall of the groove. The center of the bottom of the convex column is provided with a third thread. There is a second installation through hole directly opposite to the second installation through hole. Internal threads are also provided in the second installation through hole. The first installation through hole and the second installation through hole are internally threadedly connected with uprights. The uprights are The top is integrally formed with a guide column, and the guide column is provided with a buffer spring. The buffer spring can be clamped on the inner bottom surface of the lower cap body. The lower cap body is clamped with a shell-shaped and elastic spring at the opening. Upper cap body, the bottom edge of the upper cap body is folded outward to form an arc-shaped flange. The arc-shaped flange can be stuck on the open opening of the lower cap body. The inner wall of the upper cap body is fixed with a clip. block, a through hole is provided in the middle of the blocking block, the upper end of the guide column can be slidably sleeved in the through hole, and the top edge of the basket body is folded vertically outward to form a second outward flange in the shape of a square , a limited blind hole is opened on the lower surface of the second outer flange directly opposite the piston rod of the first cylinder;

The bottom of the drying box is open, and the drying box is integrally formed with the upper box body through a first outer flange. A working window is provided on the front wall of the drying box, and a working window is provided on the end face of the working window. There is a slot, and a slide plate that can close the working window is inserted into the slot. The slide plate includes a slide plate body. The top outer wall of the slide plate body is integrally formed with a limit bar with a Z-shaped cross section. Hanging holes are provided at the left and right ends of the strips. The left and right sides of the front wall of the drying box corresponding to the top of the working window are provided with lifting pins that can fix the slide plate through the hanging holes. The left and right walls of the drying box A second electric heating coil is detachably installed at a position corresponding to the first electric heating coil on the rear wall. A first fan is installed on the left wall of the drying box, and a second fan is installed on the right wall of the drying box. A plurality of sets of hot air stirring mechanisms distributed in a matrix are installed on the roof of the drying box. The hot air stirring mechanism includes a second motor. The power output shaft of the second motor is drivingly connected to a hot air stirring shaft. The hot air stirring mechanism The stirring shaft extends into the drying box through the top plate, and a plurality of spirally distributed semicircular vertical plates are fixed on the rod wall in the drying box. The hot air stirring shaft has a rod wall at the top of the semicircular A baffle disk is fixed vertically above the vertical plate, and the power switches of the first cylinder, the second electric heating coil, the first fan, the second fan and the second motor are all arranged on the front wall of the drying box;

The hoisting mechanism includes two hoisting components with the same structure and mirror images on the left and right. The hoisting component includes a square bar, the upper surface of the square bar is fixed to the lower surface of the top plate, and the long side of the square bar is opposite to the top plate. Vertical, the middle position of the lower surface of the square bar is integrally formed with an arc-shaped lug, and a second cylinder is removably set inside the arc-shaped lug. The piston rod of the second cylinder faces outward and is perpendicular to the square bar. , a block is fixedly installed on the end of the piston rod of the second cylinder, and an inverted U-shaped fork is integrally formed on the lower surface of the block. A lifting spring is fixed in the inverted U-shaped fork, and the lifting spring is A hook is fixed at the free end, and the projection of the hook on the plane is a straight line parallel to the square bar. The bottom end of the inverted U-shaped fork is detachably provided with a pin rod, and the hook includes an adjustable rod, inverted U-shaped rod, diagonal tie rod, L-shaped hook and horizontal tie rod. The top of the inverted U-shaped rod is integrally formed with the lower end of the adjustable rod. The adjustable rod is provided with a plurality of limit holes. The upper end of the adjustable rod is inserted into the inverted U-shaped fork and fixed by the pin rod limiter. The top of the adjustable rod is fixedly connected to the free end of the lifting spring. The two lower ends of the inverted U-shaped rod are respectively connected with the inclined tie rod. The upper end is integrally formed, the lower end of the diagonal tie rod is integrally formed with both ends of the horizontal tie rod, and the upper end of the L-shaped hook is integrally formed with both ends of the horizontal tie rod, thus forming a socket into which the second outer flange can be inserted.

When using the device of the present invention, first put the blackening liquid into the upper box, then put the workpiece in the basket, put the basket into the upper box, so that the stirring shaft is sleeved in the cavity of the guide rod, and the workpiece is When putting the workpiece into the basket, if the workpiece touches the upper cap body, a force will be exerted on the upper cap body, causing the upper cap body to move downward along the guide column, thereby compressing the buffer spring, which has good guiding and buffering effects. , not only facilitates the placement of the workpiece, but also prevents damage to the workpiece and reduces the product scrap rate. Then start the power switch of the first motor, and the first motor drives the gear to rotate. Since the two adjacent gears are located on the diagonal and mutually Engagement, the gear in the center meshes with the nearest gear, so multiple stirring shafts rotate at the same time, causing the blackening liquid to stir. During the stirring process of the blackening liquid, the blackening liquid will flow upward from the first through hole to Make the blackening liquid in good contact with the surface of the workpiece to further improve the blackening effect; then turn on the power switch of the first electric heating coil to heat the blackening liquid and further improve the blackening effect; when the blackening is completed, start The power switch of the first cylinder causes the piston rod of the first cylinder to extend upward, and the piston rod of the first cylinder pushes the basket to move upward, thereby taking the basket out of the blackening liquid and lifting it to the set stroke of the first cylinder; Take out the pin rod and pull down the hook to stretch the lifting spring. When the highest limit hole on the adjustable rod corresponds to the position of the pin rod, insert the pin rod to limit and fix it. At this time, the position of the socket is consistent with the position of the second outer flange. Face to face, start the two second cylinders, and the piston rod of the second cylinder contracts, so that the second flange is inserted into the socket. When the piston rod of the second cylinder contracts to the set stroke, the second cylinder stops. At this time , let the piston rod of the first cylinder shrink downward and turn off the power switch of the first cylinder, lift the slide plate to close the working window, first start the power switch of the second fan, extract the air from the inner cavity, and then turn off the second fan Turn on the power switch of the first fan and the second electric heating coil, inhale gas into the inner cavity until the gas fills the inner cavity, then turn off the power switch of the first fan, and the gas will be heated by the second electric heating coil in the sealed inner cavity. Heating is carried out under the action of the coil. At this time, the second motor is started, which causes the hot air agitation shaft to rotate, driving the semicircular vertical plate to rotate. The heated hot air moves upward. When it collides with the lower surface of the baffle disc, It flows downward in the opposite direction, so that the hot air in the drying box circulates, and the workpieces in the basket can be dried. During the drying process, the blackening liquid on the workpieces just drips into the blackening liquid in the upper box. , to a certain extent, save the amount of blackening liquid and reduce costs. The invention organically combines blackening treatment and drying, and is suitable for market promotion.

The blackening treatment method using the above-mentioned blackening treatment device that can dry workpieces includes the following steps:

Step 1. Put the blackening liquid into the upper box. The components of the blackening liquid are: potassium permanganate 500g-1000g, potassium chlorate 200g-300g, chromium trichloride 150g-250g, chromium nitrate 200g-300g , Chromium sulfate 150g-250g, Manganese nitrate 150g-250g, Aluminum chloride 500g-1000g, Ferric chloride 350g-400g, Sodium molybdate 200g-300g, Sodium vanadate 150g-250g, Tartaric acid 350g-400g, Citric acid 200g- 300g, malic acid 150g-250g, oxalic acid 200g-300g, lactic acid 350g-400g, gluconic acid 500g-1000g, polyacrylic acid 150g-250g, water-soluble acrylic resin 500g-1000g, carbon black 350g-400g, iron oxide black 200g-300g , chrome black 500g-1000g, aniline black 150g-250g, zinc oxide 500g-1000g, aluminum oxide 150g-250g, phosphoric acid 350g-400g, ammonium dihydrogen phosphate 200g-300g, ammonium molybdate 150g-250g, ammonium chloride 200g- 300g, hydroxymethylcellulose 350g-400g, anhydrous sodium sulfate 500g-1000g, polyethylene glycol octylphenyl ether 250g-400g, sodium dodecylbenzene sulfonate 200g-300g, magnesium chloride 500g-1000g, the rest for water;

Step 2: Install the workpiece in the basket, put the basket into the upper box, ensure that the blackening liquid is higher than the top of the guide rod, and make the stirring shaft sleeve in the cavity of the guide rod;

Step 3: Turn on the power switch of the first motor, and the first motor drives the gear to rotate, thereby driving multiple stirring shafts to rotate simultaneously to stir the blackening liquid;

Step 4: Start the power switch of the first electric heating coil to heat the blackening liquid. The blackening liquid is heated to 58°C within 3 minutes. The rotation speed of the stirring shaft during this time period is 20rpm to 30rpm, and then Keep the temperature for 15-18 minutes. The rotation speed of the stirring shaft during this time period is 50rpm~80rpm. Finally, reduce the temperature of the blackening liquid to 15°C within 3 minutes. The rotation speed of the stirring shaft during this time period is 5rpm~8rpm;

Step 5. After the blackening is completed, start the power switch of the first cylinder to extend the piston rod of the first cylinder upward. The piston rod of the first cylinder pushes the basket to move upward, thereby taking the basket out of the blackening liquid and lifting it up. as high as the set stroke of the first cylinder; take out the pin rod, pull down the hook to stretch the lifting spring, and insert the pin rod to limit the position when the highest limit hole on the adjustable rod corresponds to the position of the pin rod. At this time , the position of the socket is directly opposite to the position of the second flange, start the two second cylinders, the piston rod of the second cylinder shrinks, so that the second flange is inserted into the socket, when the piston rod of the second cylinder shrinks to the set During the stroke, the second cylinder stops. At this time, let the piston rod of the first cylinder shrink downward and turn off the power switch of the first cylinder. Lift the slide plate to close the working window. First, start the power switch of the second fan, and then turn off the power switch of the first cylinder. Extract the air from the inner cavity, then turn off the power switch of the second fan, start the power switches of the first fan and the second electric heating coil, inhale gas into the inner cavity until the gas fills the inner cavity, then turn off the power switch of the first fan, The gas is heated in the sealed inner cavity under the action of the second electric heating coil. At this time, the second motor is started, causing the hot air agitation shaft to rotate, driving the semicircular vertical plate to rotate, and the heated hot air moves upward. When it collides with the lower surface of the baffle disc, it flows downward in the reverse direction, causing the hot air in the drying box to circulate, and the workpieces in the basket can be dried. The parameters are set to: within 3 minutes. The gas is heated to 70°C. During this period, the rotation speed of the hot air agitation shaft is 15rpm to 18rpm. Then it is kept warm for 20-38 minutes. During this period, the rotation speed of the hot air agitation shaft is 80rpm to 100rpm. Finally, the temperature of the gas is adjusted within 3 minutes. Lower to 25°C. During this period, the rotation speed of the hot air stirring shaft is 3rpm to 5rpm.

Using the method of the present invention, the component selection of the blackening liquid is combined with the setting of the stirring parameters of the blackening liquid and the setting of the heating parameters of the first electric heating coil, as well as the setting of the heating parameters of the second electric heating coil and the parameters of the hot air stirring mechanism. The settings jointly improve the blackening effect and drying effect. After blackening treatment, the thickness of the oxide film is more uniform, and the bonding fastness between the oxide film and the workpiece surface is high, which greatly extends the service life of the blackened workpiece and reduces the use time. cost.

Description of the drawings

The invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

Figure 1 is a schematic three-dimensional structural diagram of an embodiment of a blackening treatment device that can dry workpieces according to the present invention (blackening preparation state);

Figure 2 is a schematic two-dimensional structural diagram of an embodiment of a blackening treatment device that can dry workpieces according to the present invention (blackening preparation state);

Figure 3 is a schematic three-dimensional structural diagram of an embodiment of a blackening treatment device capable of drying workpieces according to the present invention (drying preparation state);

Figure 4 is a schematic diagram 4 of the three-dimensional structure of an embodiment of a blackening treatment device capable of drying workpieces according to the present invention (drying state);

Figure 5 is a partial three-dimensional structural diagram of an embodiment of a blackening treatment device capable of drying workpieces according to the present invention;

Figure 6 is an enlarged structural schematic diagram of position A in Figure 5;

Figure 7 is a schematic three-dimensional structural diagram of the distribution of stirring shafts in an embodiment of a blackening treatment device that can dry workpieces according to the present invention;

Figure 8 is a schematic three-dimensional structural diagram of the cooperation between the basket and the stirring shaft in an embodiment of the blackening treatment device that can dry workpieces according to the present invention;

Figure 9 is a schematic three-dimensional structural diagram of the hot air stirring mechanism in an embodiment of a blackening treatment device capable of drying workpieces according to the present invention;

Figure 10 is a schematic three-dimensional structural diagram of a sliding plate in an embodiment of a blackening treatment device capable of drying workpieces according to the present invention;

Figure 11 is a schematic three-dimensional structural diagram of a hoisting mechanism installed on the top plate in an embodiment of a blackening treatment device capable of drying workpieces according to the present invention;

Figure 12 is a schematic structural diagram of the hoisting state of the hoisting mechanism in an embodiment of a blackening treatment device that can dry workpieces according to the present invention;

Figure 13 is a schematic structural diagram of the installation of the guide rod and the guide cap in an embodiment of a blackening treatment device that can dry workpieces according to the present invention;

The symbols in the illustration are explained as follows:

1. Blackening tank, 10. Upper box, 100. First cylinder, 101. First electric heating coil, 102. Stirring shaft, 1020. Stirring rod, 1021. Gear, 1022. First motor, 110. Gear Block, 111. Sealing plate, 112. Universal wheel, 2. Basket, 20. Basket body, 200. Guide rod, 2000. First through hole, 2001. Groove, 2010. Lower cap body, 2011. Projecting column, 2012. Upper cap body, 2013. Clamp block, 2014. Guide column, 2015. Buffer spring, 2016. Upright column, 21. Second outer flange, 3. Drying box, 30. Skateboard, 300. Skateboard body, 301. Limit bar, 302. Hanging hole, 31. First fan, 32. Hot air stirring mechanism, 320. Second motor, 321. Hot air stirring shaft, 322. Baffle disc, 323. Semicircular vertical plate, 33. Second fan, 34. Second electric heating coil, 4. Top plate, 40. Square bar, 41. Arc-shaped ears, 42. Second cylinder, 43. Inverted U-shaped fork, 430. Lifting spring, 431. Pin rod, 44. Inverted U-shaped rod, 45. Diagonal tie rod, 46. L-shaped hook, 47. Horizontal tie rod.

Detailed ways

In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and examples.

As shown in Figures 1 to 13, a blackening treatment device for drying workpieces of the present invention includes a blackening tank 1 and a basket 2. The basket 2 includes a basket body 20 with a rectangular parallelepiped shape and an open top. The basket A plurality of second through holes are provided on the front wall, rear wall, left wall, right wall and bottom of the main body 20, which also includes a drying box 3 and a lifting mechanism;

The blackening tank 1 is integrally formed by an upper box 10 and a lower box. The top of the upper box 10 is open. The basket 2 can be stuck in the upper box 10. The upper box 10 can contain blackening liquid. The lower box The top and front of the upper box 10 are open. A plurality of first electric heating coils 101 are detachably installed on the inner wall of the upper box 10. A fourth through hole is provided at the bottom of the upper box 10. The number of fourth through holes is Odd numbers are distributed in the center and diagonal lines of the bottom of the upper box 10. A stirring shaft 102 is rotatably installed in the fourth through hole. The stirring shaft 102 is located on the wall of the upper box 10 and is evenly provided with a plurality of stirring rods 1020. , the bottom end of the stirring shaft 102 located on the diagonal passes through the bottom of the upper box 10 and is rotationally connected to the bottom of the lower box. The stirring shaft 102 is located on the rod wall of the lower box with a gear 1021 fixed on it. The stirring shaft 1021 is located in the center. The first motor 1022 is installed on the shaft 102 under the gear 1021. The two adjacent gears 1021 on the diagonal mesh with each other. The gear 1021 at the center meshes with the nearest gear 1021. The first motor 1022 can It is disassembled and installed at the bottom of the lower box. The power switches of the first electric heating coil 101 and the first motor 1022 are both arranged on the lower box. The exposed position of the front wall of the lower box is integrally formed with a U-shaped stopper 110 , the stopper 110 forms a slot together with the left wall, right wall and bottom of the lower box. A sealing plate 111 that can close the open front wall of the lower box is clamped in the slot. The top surface of the sealing plate 111 is provided with Two C-shaped handles, left and right symmetrical blind holes are longitudinally opened on the left and right walls of the blackened tank 1, the first cylinder 100 is installed in the blind holes, the front wall, rear wall, left wall and right wall of the upper box 10 The top is vertically folded outward to form the first outward flange;

The bottom of the basket body 20 is provided with a third through hole at a position corresponding to the fourth through hole. A guide rod 200 with a hollow shape and a closed top is integrally formed on the inner bottom surface of the basket body 20 at a position corresponding to the third through hole. The guide rod 200 The aperture size is equal to the aperture size of the third through hole. The rod wall of the guide rod 200 is provided with a plurality of first through holes 2000. The first through holes 2000 are inclined with a low inside and a high outside. The first through holes 2000 are in contact with the basket. The angle between the inner bottom surfaces of the main body 20 is 20°-30°. The center of the top surface of the guide rod 200 is recessed to form a groove 2001. A first installation through hole is provided at the bottom of the groove 2001. The inner wall of the groove 2001 There are internal threads in the first installation through hole. A guide cap is detachably installed on the top of the guide rod 200. The guide cap includes a lower cap body 2010 with a hemispherical shell shape and an open top. The center of the bottom plane of the lower cap body 2010 is The vertical protrusion forms a convex column 2011. The convex column 2011 is provided with external threads. The convex column 2011 is threadedly connected to the inner wall of the groove 2001. The bottom center of the convex column 2011 is provided with a second installation through hole directly opposite to the first installation through hole. , the second installation through hole is also provided with internal threads, the first installation through hole and the second installation through hole are internally threadedly connected with a column 2016, the top of the column 2016 is integrally formed with a guide column 2014, and the guide column 2014 is provided with a buffer spring. 2015, the buffer spring 2015 can be stuck on the inner bottom surface of the lower cap body 2010. The lower cap body 2010 is provided with a shell-shaped and elastic upper cap body 2012 at the opening. The bottom edge of the upper cap body 2012 is folded outward to form The arc-shaped flange can be stuck on the opening of the lower cap body 2010. A clamping block 2013 is fixed on the inner wall of the upper cap body 2012. A through hole is provided in the middle of the clamping block 2013. The upper end of the guide column 2014 can be slidably sleeved. Located in the through hole, the top edge of the basket body 20 is folded vertically outward to form a second outward flange 21 in the shape of a square. The lower surface of the second outer flange 21 faces the piston rod of the first cylinder 100 and has a limited position. blind hole;

The bottom of the drying box 3 is open. The drying box 3 is integrally formed with the upper box body 10 through the first outer flange. The front wall of the drying box 3 is provided with a working window, and the end face of the working window is provided with a slot. A slide plate 30 that can close the working window is inserted into the slot. The slide plate 30 includes a slide plate body 300. The top outer wall of the slide plate body 300 is integrally formed with a limit bar 301 with a Z-shaped cross section. The left and right sides of the limit bar 301 are A hanging hole 302 is provided at the end. The left and right sides of the front wall of the drying box 3 corresponding to the top of the working window are provided with lifting pins that can fix the sliding plate 30 through the hanging holes 302. The left, right and rear walls of the drying box 3 A second electric heating coil 34 is detachably installed at a position corresponding to the first electric heating coil 101. A first fan 31 is installed on the left wall of the drying box 3, and a second fan 33 is installed on the right wall of the drying box 3. Drying A plurality of sets of hot air agitation mechanisms 32 distributed in a matrix are installed on the top plate 4 of the box 3. The hot air agitation mechanism 32 includes a second motor 320. The power output shaft of the second motor 320 is drivingly connected to a hot air agitation shaft 321. The hot air agitation shaft 321 passes through The overhead plate 4 extends into the drying box 3, and a plurality of spirally distributed semicircular vertical boards 323 are fixed on the rod wall in the drying box 3. The rod wall of the hot air agitation shaft 321 is located on the uppermost semicircular A baffle disc 322 is fixed vertically above the vertical plate 323. The power switches of the first cylinder 100, the second electric heating coil 34, the first fan 31, the second fan 33 and the second motor 320 are all arranged in the drying box. on the front wall of 3;

The hoisting mechanism includes two hoisting components with the same structure and left and right mirror images. The hoisting component includes a square bar 40. The upper surface of the square bar 40 is fixed to the lower surface of the top plate 4. The square bar 40 is perpendicular to the long side of the top plate 4. The square bar 40 An arc-shaped lug 41 is integrally formed at the middle position of the lower surface. A second cylinder 42 is detachably installed in the arc-shaped lug 41. The piston rod of the second cylinder 42 faces outward and is perpendicular to the square bar 40. The second cylinder 42 The end of the piston rod is fixedly installed with a block, and the lower surface of the block is integrally formed with an inverted U-shaped fork 43. A lifting spring 430 is fixed in the inverted U-shaped fork 43, and a hook is fixed at the free end of the lifting spring 430. The projection of the piece on the plane is a straight line parallel to the square bar 40. The bottom end of the inverted U-shaped fork 43 is detachably provided with a pin rod 431. The hook includes an adjustable rod, an inverted U-shaped rod 44, and an oblique pull rod 45. , L-shaped hook 46 and horizontal tie rod 47, the top of the inverted U-shaped rod 44 is integrally formed with the lower end of the adjustable rod, the adjustable rod is provided with a plurality of limit holes, and the upper end of the adjustable rod is inserted into the inverted U-shaped fork 43 And fixed by the pin rod 431, the top of the adjustable rod is fixed with the free end of the hoisting spring 430, the two lower ends of the inverted U-shaped rod 44 are integrally formed with the upper end of the diagonal tie rod 45, and the lower end of the diagonal tie rod 45 is integral with the horizontal tie rod. The two ends of the hook 47 are integrally formed, and the upper end of the L-shaped hook 46 and the two ends of the horizontal tie rod 47 are integrally formed, thereby forming a socket into which the second outer flange 21 can be inserted.

The blackening treatment method using the above-mentioned blackening treatment device that can dry workpieces includes the following steps:

Step 1. Put the blackening liquid into the upper box 10. The components of the blackening liquid are: potassium permanganate 500g-1000g, potassium chlorate 200g-300g, chromium trichloride 150g-250g, chromium nitrate 200g-300g, sulfuric acid. Chromium 150g-250g, manganese nitrate 150g-250g, aluminum chloride 500g-1000g, ferric chloride 350g-400g, sodium molybdate 200g-300g, sodium vanadate 150g-250g, tartaric acid 350g-400g, citric acid 200g-300g, Malic acid 150g-250g, oxalic acid 200g-300g, lactic acid 350g-400g, gluconic acid 500g-1000g, polyacrylic acid 150g-250g, water-soluble acrylic resin 500g-1000g, carbon black 350g-400g, iron oxide black 200g-300g, chromium Black 500g-1000g, aniline black 150g-250g, zinc oxide 500g-1000g, aluminum oxide 150g-250g, phosphoric acid 350g-400g, ammonium dihydrogen phosphate 200g-300g, ammonium molybdate 150g-250g, ammonium chloride 200g-300g, Hydroxymethylcellulose 350g-400g, anhydrous sodium sulfate 500g-1000g, polyethylene glycol octylphenyl ether 250g-400g, sodium dodecyl benzene sulfonate 200g-300g, magnesium chloride 500g-1000g, the rest is water ;

Step 2: Install the workpiece in the basket 2, put the basket 2 into the upper box 10, ensure that the blackening liquid is higher than the top of the guide rod 200, and make the stirring shaft 102 fit in the cavity of the guide rod 200;

Step 3: Start the power switch of the first motor 1022, and the first motor 1022 drives the gear 1021 to rotate, thereby driving multiple stirring shafts 102 to rotate simultaneously to stir the blackening liquid;

Step 4: Start the power switch of the first electric heating coil 101 to heat the blackening liquid. The blackening liquid is heated to 58°C within 3 minutes. During this time, the rotation speed of the stirring shaft 102 is 20rpm to 30rpm, and then Keep the temperature for 15-18 minutes. During this time period, the rotation speed of the stirring shaft 102 is 50rpm~80rpm. Finally, reduce the temperature of the blackening liquid to 15°C within 3 minutes. During this time period, the rotation speed of the stirring shaft 102 is 5rpm~8rpm;

Step 5. After the blackening is completed, start the power switch of the first cylinder 100 to extend the piston rod of the first cylinder 100 upward. The piston rod of the first cylinder 100 pushes the basket 2 to move upward, thereby removing the basket 2 from the blackening liquid. Take it out and lift it to the set stroke of the first cylinder 100; take out the pin rod 431, pull down the hook to stretch the lifting spring 430, and insert the pin when the highest limit hole on the adjustable rod corresponds to the position of the pin rod 431 The rod 431 is limited and fixed. At this time, the position of the socket is directly opposite to the position of the second flange 21. The two second cylinders 42 are started, and the piston rods of the second cylinders 42 contract, so that the second flange 21 is inserted into the socket. , when the piston rod of the second cylinder 42 contracts to the set stroke, the second cylinder 42 stops moving. At this time, let the piston rod of the first cylinder 100 contract downward and turn off the power switch of the first cylinder 100, and slide the slide 30 Lift up to close the working window, first turn on the power switch of the second fan 33 to extract the air from the inner cavity, then turn off the power switch of the second fan 33, and start the power switches of the first fan 31 and the second electric heating coil 34 , inhale gas into the inner cavity until the gas fills the inner cavity, and then turn off the power switch of the first fan 31. The gas is heated in the sealed inner cavity under the action of the second electric heating coil 34. At this time, the second motor 320 is started. , thus causing the hot air agitation shaft 321 to rotate, driving the semicircular vertical plate 323 to rotate, and the heated hot air moves upward. When it collides with the lower surface of the baffle disk 322, it flows downward in the opposite direction, thereby causing the drying box 3 When the hot air in the basket 2 is circulated, the workpiece in the basket 2 can be dried. The parameters are set as follows: heat the gas to 70°C within 3 minutes, and the rotation speed of the hot air stirring shaft 321 during this time period is 15rpm to 18rpm. Then keep the temperature for 20-38 minutes. During this time period, the rotation speed of the hot air agitation shaft 321 is 80rpm~100rpm. Finally, the temperature of the gas is reduced to 25°C within 3 minutes. During this time period, the rotation speed of the hot air agitation shaft 321 is 3rpm~5rpm. .

It should be noted that, in order to facilitate the random movement and on-demand fixation of the entire device, universal wheels 112 with brakes can be installed at the four corners of the bottom surface of the lower box.

The above embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims (1)

1. The utility model provides a blackening processing apparatus of work piece can dry, includes blackening groove (1) and basket (2), basket (2) are including being cuboid shape, and open basket main part (20) in top, a plurality of second through-holes have all been seted up to the front wall, back wall, left wall, right wall and the bottom of basket main part (20), its characterized in that: the drying box (3) and the hoisting mechanism are also included;

the blackening groove (1) is formed by integrally forming an upper box body (10) and a lower box body, the top of the upper box body (10) is open, a basket (2) can be clamped in the upper box body (10), the upper box body (10) can be filled with blackening liquid, the top and the front part of the lower box body are both open, a plurality of first electric heating coils (101) are detachably arranged on the inner wall of the upper box body (10), a fourth through hole is formed in the bottom of the upper box body (10), the number of the fourth through holes is odd and distributed on the center and the diagonal of the bottom of the upper box body (10), a stirring shaft (102) is rotatably arranged in the fourth through hole, a plurality of stirring rods (1020) are uniformly arranged on the rod wall of the stirring shaft (102) positioned on the diagonal, the bottom end of the stirring shaft (102) penetrates through the bottom of the upper box body (10) and is rotationally connected with the bottom of the lower box body, a gear (1021) positioned on the stirring shaft (102) is positioned on the bottom wall of the lower box body, a gear (1021) is fixedly positioned on the bottom of the upper box body, a gear (1021) is positioned on the bottom of the lower box body (1021) and is meshed with a gear (1021) positioned on the adjacent to the first gear (1021) and the bottom (1021) positioned on the two adjacent shafts (1021), the power switches of the first electric heating coil (101) and the first motor (1022) are arranged on the lower box body, U-shaped stop blocks (110) are integrally formed at the open positions of the front wall of the lower box body, the stop blocks (110) and the left wall, the right wall and the bottom of the lower box body form a clamping groove together, a sealing plate (111) capable of sealing the open front wall of the lower box body is clamped in the clamping groove, two C-shaped handles are arranged on the top surface of the sealing plate (111), bilaterally symmetrical blind holes are longitudinally formed in the left wall and the right wall of the blackening groove (1), a first air cylinder (100) is arranged in each blind hole, and the tops of the front wall, the rear wall, the left wall and the right wall of the upper box body (10) are outwards and vertically folded to form a first outward flanging;

a third through hole is formed in the position, corresponding to the fourth through hole, of the bottom of the basket body (20), a hollow guide rod (200) with the top closed is integrally formed in the position, corresponding to the third through hole, of the inner bottom surface of the basket body (20), the aperture size of the guide rod (200) is equal to that of the third through hole, a plurality of first through holes (2000) are formed in the rod wall of the guide rod (200), the first through holes (2000) are in an inclined shape with the inner side low and the outer side high, an included angle between the first through holes (2000) and the inner bottom surface of the basket body (20) is 20-30 degrees, a groove (2001) is formed in the center of the top surface of the guide rod (200), a first mounting through hole is formed in the bottom of the groove (2001), a guide cap is detachably mounted on the top of the guide rod (200), the guide cap comprises a lower cap body (2010) which is in a hemispherical shell shape and is opened on the top, a boss (2011) is also vertically connected with the inner side of the second through hole, a boss (2011) is formed in the boss (2011) and is directly opposite to the inner side of the first through hole, a boss (2011) is mounted on the boss (2011), the top integrated into one piece of stand (2016) has guide post (2014), guide post (2014) overcoat is equipped with buffer spring (2015), buffer spring (2015) can block in the interior bottom surface of lower cap body (2010), lower cap body (2010) in the open department block be equipped with shell form and have elastic upper cap body (2012), the bottom mouth of upper cap body (2012) is turned over outward and is formed arc turn-ups, arc turn-ups can block in the open department of lower cap body (2010), the inner wall of upper cap body (2012) is fixed with fixture block (2013), the through-hole has been seted up at the middle part of fixture block (2013), the upper end slidable sleeve of guide post (2014) is established in the through-hole, the top mouth of basket main part (20) is along the second outward turn-ups (21) of perpendicularly outwards turning over the shape of mouth, limit blind hole has been seted up to the position of the piston rod of first cylinder (100) just;

the bottom of the drying box (3) is open, the drying box (3) is integrally formed with the upper box body (10) through a first flanging, a working window is formed in the front wall of the drying box (3), a slot is formed in the end face of the working window, a sliding plate (30) capable of sealing the working window is inserted in the slot, the sliding plate (30) comprises a sliding plate main body (300), a limit strip (301) with a cross section being shaped is integrally formed in the top outer wall of the sliding plate main body (300), hanging holes (302) are formed in the left end and the right end of the limit strip (301), lifting pins for fixing the sliding plate (30) through the hanging holes (302) are respectively arranged on the left side and the right side of the front wall of the drying box (3), a second electric heating coil (34) is detachably arranged at the position of the left wall, corresponding to the first electric heating coil (101), a first fan (31) is arranged on the left wall of the drying box (3), a second fan (321) is arranged on the right wall of the drying box (3), a second fan (3) is arranged on the second fan (320), a stirring mechanism (32) is arranged on the stirring mechanism (320), the hot air stirring shaft (321) penetrates through the top plate (4) to extend into the drying box (3), a plurality of semicircular vertical plates (323) which are spirally distributed are fixed on the rod wall in the drying box (3), a baffling disc (322) is vertically fixed above the uppermost semicircular vertical plate (323) on the rod wall of the hot air stirring shaft (321), and power switches of the first air cylinder (100), the second electric heating coil (34), the first fan (31), the second fan (33) and the second motor (320) are all arranged on the front wall of the drying box (3);

the lifting mechanism comprises two lifting components which are identical in structure and mirror images left and right, each lifting component comprises a square bar (40), the upper surface of each square bar (40) is fixed with the lower surface of a top plate (4), each square bar (40) is perpendicular to the long side of the top plate (4), an arc-shaped sleeve lug (41) is integrally formed in the middle of the lower surface of each square bar (40), a second air cylinder (42) is detachably sleeved in each arc-shaped sleeve lug (41), a piston rod of each second air cylinder (42) faces outwards and is perpendicular to each square bar (40), a square block is fixedly arranged at the end of a piston rod of each second air cylinder (42), an inverted U-shaped fork piece (43) is integrally formed in the lower surface of each square block, a hook piece is fixed in each inverted U-shaped fork piece (43), the free end of each lifting spring (430) is fixedly provided with a hook piece, the projection of each hook piece on a plane is a straight line parallel to each square bar (40), the bottom end of each inverted U-shaped fork piece (43) is detachably provided with a second air cylinder (42), each inverted U-shaped fork piece (431) is integrally provided with an adjustable rod (431), each adjustable rod (431) is inserted into each adjustable rod (43) and is integrally provided with a plurality of adjustable rods (44) and one end (44) and one adjustable rod (44) is formed by the top end of the adjustable rod (43, the top of adjustable pole and the free end rigid coupling of hoist and mount spring (430), the both lower extreme of falling U-shaped pole (44) respectively with the upper end integrated into one piece of diagonal draw bar (45), the lower extreme of diagonal draw bar (45) and the both ends integrated into one piece of tie (47), the upper end of L-shaped couple (46) and the both ends integrated into one piece of tie (47) to constitute the socket that can supply second outward flange (21) to insert.