Elastic overflow-preventing device and processing technology thereof

Abstract

The present application relates to the technical field of doctor blade, and provides an elastic anti-overflow device, which comprises a blade plate, the whole of the blade plate is rectangular and is divided into three parts, an upper part, a middle part and a lower part, a mounting hole is formed in one side of the upper part close to the edge, and the inner wall of the mounting hole is processed with threads by a numerical control machine tool, the middle part of the blade plate is processed with a hollow deformation part capable of producing deformation by stamping and cutting, and the lower part of the blade plate is provided with a slot for mounting a cutter at the edge away from the blade plate, wherein the cutter is connected with the blade plate in a casting forming mode, and the four corners and the edge of the blade plate are all processed with round corners by the numerical control machine tool. The middle part of the blade plate is processed with a hollow deformation part by stamping and cutting, so that the blade plate has the characteristics similar to a spring, and can automatically compensate the gap caused by the change of angle within a certain range, when the angle of the blade plate changes, the gap between the blade plate and the printed matter changes, and the blade plate can automatically adapt to the height difference.

Description

Technical Field

[0001] This invention relates to the field of scraper technology, specifically to an elastic anti-overflow device and its processing technology. Background Technology

[0002] The scraper, also known as a trowel, is the most widely used tool in mold repair. It comes in several types, including flat-headed, pointed-headed, and round-headed. It is mainly used to repair larger flat surfaces of molding sand (cores), excavate risers and gating gates, cut grooves and casting ribs, trim sand billets and soft and hard sand beds, and pry reinforcing nails from the surface of the sand mold into the sand mold.

[0003] Patent CN200710053978.4 discloses a method for preparing an ultra-wear-resistant composite ceramic scraper. The method includes four processes: metal skeleton fabrication, ceramic material preparation, composite fabrication, and curing. Under the same usage conditions, the scraper's lifespan is extended by 10-15 times; capital consumption is reduced by 30%; over 20,000 tons of high-quality steel are saved, with only about 800 tons of ordinary steel and approximately 360 tons of ceramic material consumed annually. Ceramic material is abundant and inexpensive; downtime for maintenance is reduced by 10-15 times, improving equipment efficiency, reducing labor intensity, and saving human resources; there are no side effects, and subsequent processes are simplified, bringing further potential economic benefits to users. However, the scraper in the aforementioned patent has low density, uses welded bonding for the wear-resistant layer, resulting in low smoothness of the formed wear-resistant layer and significant wear during scraping. Furthermore, the wear-resistant layer is made only from pure metal and ceramic raw materials, resulting in low hardness and a short service life.

[0004] When the angle of the squeegee changes, the gap between it and the printed material changes accordingly. Because the existing squeegee anti-overflow block adopts an integral structure without elasticity, when the gap is generated or wear occurs, the squeegee anti-overflow block cannot adapt to the height difference, causing the ink to leak out from the gap. In response to this, this application proposes an elastic anti-overflow device. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an elastic anti-overflow device and its processing technology, which solves the problem that when the scraper angle changes, the existing scraper anti-overflow baffle adopts an integral structure and lacks elasticity. When gaps are generated or wear occurs, the scraper anti-overflow baffle cannot adapt to the height difference, causing slurry to leak from the gaps.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an elastic spill prevention device, comprising a blade plate, the blade plate being rectangular in shape and divided into upper, middle, and lower parts. An installation hole is provided on one side of the upper blade plate near its edge, and the inner wall of the installation hole is threaded using a CNC machine tool. The middle blade plate is formed into a hollowed-out deformation section capable of deformation through stamping and cutting. A slot for installing a cutting tool is provided at the edge of the lower blade plate. The cutting tool and the blade plate are connected by casting. The four corners and edges of the blade plate are all rounded using a CNC machine tool, with the radius of the rounded corners being R1 and the radius of the rounded corners at the edges being R2. The value of R1 is between 25 and 65 μm, and the value of R2 is between 5 and 20 μm.

[0007] Preferably, the hollowed-out deformation part comprises two parts: a hollowed-out groove and a hollowed-out hole. The hollowed-out hole is rectangular in shape and is located at the center of the central blade. The hollowed-out groove is located on the upper and lower sides of the hollowed-out hole and is disposed at the edges of both sides of the central blade. Both the hollowed-out hole and the hollowed-out groove are made by either stamping or cutting. There are four hollowed-out grooves, which are located at the four corners of the hollowed-out hole.

[0008] Preferably, the hollowed-out deformation part further comprises a connecting plate and a second hollowed-out hole, wherein the second hollowed-out hole is elliptical in shape, the connecting plate is located at the center of the middle blade, and the second hollowed-out hole is located on the upper and lower sides of the connecting plate. The second hollowed-out hole is made by either stamping or cutting, and there are two second hollowed-out holes. The side of the middle blade is made by cutting.

[0009] Preferably, the hollowed-out deformation part further comprises two parts: a hollowed-out hole three and a hollowed-out groove two. The hollowed-out hole three is elliptical in shape and is located at the center of the middle blade plate. The hollowed-out groove two is located on the upper and lower sides of the connecting plate and is set at the edges of both sides of the middle blade plate. Both the hollowed-out hole three and the hollowed-out groove two are made by either stamping or cutting. The number of hollowed-out groove two is four.

[0010] Preferably, the cutting is performed using any one of water jet cutting, laser cutting, and blade cutting, the surface of the blade is covered with a wear-resistant layer, and the middle of the blade is also covered with a reinforcing layer.

[0011] Preferably, the wear-resistant layer is composed of the following components in weight percentage: 25-50% corundum, 15-30% silica powder, 8-15% high manganese steel solder, 8-15% silicon carbide, 3-8% nano carbon powder, 2-6% silica sol, 2-6% sodium tetraborate, 2-6% amino resin, 2-6% tea polyphenols, and 2-6% antistatic agent.

[0012] Preferably, the reinforcing layer is composed of the following components by mass percentage: 20-30% fiberglass particles, 10-18% sodium silicate, 2-8% titanium dioxide, 12-18% barium carbonate, 4-10% potassium carbonate, and 30-40% sodium chloride.

[0013] A manufacturing process for a resilient spill prevention device includes the following steps:

[0014] Step 1: Forging the blank

[0015] After the billet is forged into a rectangular blank, the rectangular blank is machined using a CNC machine tool to obtain the cutter plate. The turning parameters of the CNC machine tool are as follows:

[0016] Roughing: Rotation speed 70-90 r / min, feed rate 0.3-0.4 mm / r, depth of cut 2 mm;

[0017] Finishing: Rotation speed 150-200 r / min, feed rate 0.15-0.25 mm / r, depth of cut 0.1 mm;

[0018] Thread machining: rotation speed 150~200r / min, feed rate 0.1~0.2mm / r, depth of cut 0.2~0.3mm;

[0019] Step 2: Casting and Molding

[0020] Place the lower edge of the prepared blade plate and the cutting tool into the lower mold. After adjusting the distance between the cutting tool and the blade plate, cover it with the upper mold and connect the cutting tool and the blade plate by casting. After casting, grind it using a CNC machine tool.

[0021] Step 3: Prepare the reinforcing layer

[0022] Weigh each raw material according to the weight percentage and put it into a mixing tank. Add water and mix to form a mixture. Under vacuum, apply the mixture to the hollowed-out deformation part in the middle of the blade and immediately place it in an ice-water bath to cool. Put it back into the vacuum tank and purge with nitrogen. After reacting for 1.5 to 2 hours, take it out and dry it at room temperature of 60°C for 4 to 8 hours.

[0023] Step 4: Prepare the wear-resistant layer

[0024] The raw materials are weighed according to their weight proportions, and the wear-resistant coating is produced by passing them through a stainless steel reactor, a twin-screw extruder, a pulverizer, and a paint tank in sequence. The coating is then applied to the surface of the blade plate and the cutting tool through a spray gun.

[0025] Preferably, the specific steps for preparing the reinforcing layer in step three are as follows: weigh each raw material according to the weight proportions and put it into a mixing tank, add water and mix to form a mixture. Under a vacuum of 80 kPa, apply the mixture to the hollow deformation part in the middle of the blade plate. During the application, keep the temperature constant for a reaction time of 1.2 to 1.5 hours. Immediately place the plate in an ice-water bath to cool to 0°C, put it back into the vacuum tank, and purge nitrogen gas at 80 sccm. After reacting for 1.5 to 2 hours, take it out and dry it at room temperature of 60°C for 4 to 8 hours.

[0026] Preferably, the specific steps for preparing the wear-resistant layer in step four are as follows: after weighing each raw material according to the weight proportions, place it in a stainless steel reactor when the temperature inside is 80-100°C, and heat it to 200-250°C for 3-5 hours. During this time, stir and vibrate continuously to mix. After the reaction is completed, extrude the material through a twin-screw extruder while controlling the temperature at 90-110°C. After extrusion, let the material stand for 15 minutes, then grind it into wear-resistant powder in a pulverizer, and then inject it into a coating tank and mix it with water to prepare a wear-resistant coating.

[0027] This invention provides an elastic spill prevention device and its manufacturing process. It has the following beneficial effects:

[0028] This invention creates a hollowed-out deformation section in the middle of the blade through stamping and cutting, giving the blade spring-like properties. It can automatically fill the gap caused by angle changes within a certain range. When the blade angle changes, the gap between it and the printed material changes accordingly, and the blade can adapt to height differences. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0032] Figure 4 This is a side view of the present invention.

[0033] Among them, 1. blade; 200. hollow deformation part; 201. hollow groove one; 202. hollow hole one; 211. connecting plate; 212. hollow hole two; 221. hollow hole three; 222. hollow groove two; 3. cutting tool; 4. mounting hole. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see the appendix Figure 1 - Appendix Figure 4 This invention provides an elastic spill prevention device, including a blade plate 1. The blade plate 1 is rectangular and divided into three parts: upper, middle, and lower. The upper blade plate 1 has a mounting hole 4 near its edge on one side, and the inner wall of the mounting hole 4 is threaded by a CNC machine tool. The middle blade plate 1 is formed into a hollow deformation part 200 by stamping and cutting, wherein the cutting is any one of water jet cutting, laser cutting, and blade cutting. The lower blade plate 1 has a slot for mounting a tool 3 at its edge away from the hollow deformation part 200. The tool 3 is connected to the blade plate 1 by casting. The four corners and edges of the blade plate 1 are all rounded by a CNC machine tool, wherein the radius of the rounded corners is R1, and the radius of the rounded corners at the edges is R2. The value of R1 is 25 to 65 μm, and the value of R2 is 5 to 20 μm.

[0036] The middle part of the blade 1 is made hollow by stamping and cutting, so that it has spring-like properties. It can fill the gap caused by the change of angle within a certain range. When the angle of the blade 1 changes, the gap between it and the printed material changes accordingly. The blade 1 can adapt to the height difference.

[0037] Specifically, both the blade plate 1 and the cutting tool 3 are covered with a wear-resistant layer, which is composed of the following components by mass percentage: 25-50% diamond grit, 15-30% silica powder, 8-15% high manganese steel solder, 8-15% silicon carbide, 3-8% nano carbon powder, 2-6% silica sol, 2-6% sodium tetraborate, 2-6% amino resin, 2-6% tea polyphenols, and 2-6% antistatic agent;

[0038] The wear-resistant layer prepared from the above-mentioned raw materials is applied to the surface of the blade plate 1 and the cutting tool 3 to improve their wear resistance and extend their overall service life.

[0039] Specifically, the middle part of the blade 1 is also covered with a reinforcing layer, which is composed of the following components by mass percentage: 20-30% fiberglass particles, 10-18% sodium silicate; 2-8% titanium dioxide, 12-18% barium carbonate, 4-10% potassium carbonate, and 30-40% sodium chloride.

[0040] The reinforcing layer prepared from the above-mentioned raw materials is applied to the hollow deformation part 200 in the middle of the blade plate 1, so that the hollow deformation part 200 has a certain toughness when it is deformed, preventing the phenomenon of breakage during the deformation process and making it easy to use.

[0041] Example 1:

[0042] Please see the appendix Figure 1 This invention provides another elastic anti-overflow device. The hollow deformation part 200 consists of two parts: a hollow groove 201 and a hollow hole 202. The hollow hole 202 is rectangular in shape and is located at the center of the central blade plate 1. The hollow groove 201 is located on the upper and lower sides of the hollow hole 202 and is set at the edges on both sides of the central blade plate 1. Both the hollow hole 202 and the hollow groove 201 are made by stamping or cutting. There are four hollow grooves 201, which are located at the four corners of the hollow hole 202.

[0043] The hollowed-out groove 201 and hollowed-out hole 202, made by either stamping or cutting, give the middle part of the blade 1 a spring-like characteristic, which can fill the gap caused by the change of angle within a certain range. When the angle of the blade 3 changes, the gap between it and the printed material changes accordingly. Under the setting of the hollowed-out deformation part 200, the hollowed-out hole 202 of the blade 1 can produce a certain deformation, so that it can adapt to the height difference.

[0044] Example 2:

[0045] Please see the appendix Figure 2 This invention provides another elastic anti-overflow device. The hollowed-out deformation part 200 is further composed of a connecting plate 211 and a second hollowed-out hole 212. The second hollowed-out hole 212 is elliptical in shape. The connecting plate 211 is located at the center of the middle blade plate 1, and the second hollowed-out hole 212 is located on the upper and lower sides of the connecting plate 211. The second hollowed-out hole 212 is made by either stamping or cutting. There are two second hollowed-out holes 212. The side of the middle blade plate 1 is made by cutting.

[0046] By using a connecting plate 211 and a second cutout hole 212 made by either stamping or cutting, the middle part of the blade 1 has a spring-like characteristic, which can automatically fill the gap caused by the angle change within a certain range. When the angle of the blade 3 changes, the gap between it and the printed material changes accordingly. Under the setting of the cutout deformation part 200, the second cutout hole 212 of the blade 1 can produce a certain deformation, so that it can adapt to the height difference.

[0047] Example 3:

[0048] Please see the appendix Figure 3This invention provides an elastic anti-overflow device 200, which is composed of two parts: a third hollow hole 221 and a second hollow groove 222. The third hollow hole 221 is elliptical in shape and is located at the center of the central blade plate 1. The second hollow groove 222 is located on the upper and lower sides of the connecting plate 211 and is set at the edges of both sides of the central blade plate 1. The third hollow hole 221 and the second hollow groove 222 are both made by stamping or cutting. The number of the second hollow groove 222 is four.

[0049] By using a connecting plate 211 and a cutout hole 212 made by either stamping or cutting, the middle part of the blade 1 has a spring-like characteristic, which can automatically fill the gap caused by the angle change within a certain range. When the angle of the blade 3 changes, the gap between it and the printed material changes accordingly. Under the setting of the cutout deformation part 200, the cutout hole 221 of the blade 1 can produce a certain deformation, so that it can adapt to the height difference.

[0050] The processing technology of the elastic spill prevention device based on the above embodiments one to three includes the following steps:

[0051] Step 1: Forging the blank

[0052] After forging the billet into a rectangular blank, the rectangular blank is machined using a CNC machine tool to obtain the cutter plate 1. The turning parameters of the CNC machine tool are as follows:

[0053] Roughing: Rotation speed 70-90 r / min, feed rate 0.3-0.4 mm / r, depth of cut 2 mm;

[0054] Finishing: Rotation speed 150-200 r / min, feed rate 0.15-0.25 mm / r, depth of cut 0.1 mm;

[0055] Thread machining: rotation speed 150~200r / min, feed rate 0.1~0.2mm / r, depth of cut 0.2~0.3mm;

[0056] Step 2: Casting and Molding

[0057] Place the lower edge of the prepared blade plate 1 and the blade 3 into the lower mold. After adjusting the distance between the blade 3 and the blade plate 1, cover it with the upper mold and connect the blade 3 and the blade plate 1 by casting. After casting, grind it using a CNC machine tool.

[0058] Step 3: Prepare the reinforcing layer

[0059] Weigh out each raw material according to the weight proportions and put them into a mixing tank. Add water and mix to form a mixture. Under a vacuum of 80 kPa, apply the mixture to the 200° section of the middle of the blade plate 1. During the application, keep the temperature constant and the reaction time is 1.2 to 1.5 hours. Immediately place the plate in an ice-water bath to cool to 0°C. Put it back into the vacuum tank and purge with nitrogen gas at 80 sccm. After reacting for 1.5 to 2 hours, take it out and dry it at room temperature of 60°C for 4 to 8 hours.

[0060] Step 4: Prepare the wear-resistant layer

[0061] After weighing each raw material according to the specified weight, place it into the stainless steel reactor when the temperature inside is 80-100℃, and then heat it to 200-250℃. The reaction time is 3-5 hours, during which the mixture is continuously stirred and vibrated. After the reaction is completed, extrude the mixture through a twin-screw extruder, with the temperature controlled at 90-110℃. After extrusion, let the material stand for 15 minutes, then grind it into wear-resistant powder in a pulverizer, and finally inject it into a coating tank. Add water to mix and prepare a wear-resistant coating.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A resilient spill prevention device, comprising a blade (1), characterized in that, The blade plate (1) is rectangular in shape and divided into three parts: upper, middle and lower. The upper blade plate (1) has a mounting hole (4) near the edge on one side, and the inner wall of the mounting hole (4) is threaded by a CNC machine tool. The middle blade plate (1) is formed by stamping and cutting to create a hollow deformation part (200) that can deform. The lower blade plate (1) has a slot for mounting a cutting tool (3) at the edge away from the hollow deformation part (200). The cutting tool (3) is connected to the blade plate (1) by casting. The four corners and the edge of the blade plate (1) are all rounded by a CNC machine tool. The radius of the rounded corners at the four corners is R1, and the radius of the rounded corners at the edge is R2. The value of R1 is 25 to 65 μm, and the value of R2 is 5 to 20 μm.

2. The elastic spill prevention device according to claim 1, characterized in that, The hollowed-out deformation part (200) consists of two parts: a hollowed-out groove (201) and a hollowed-out hole (202). The hollowed-out hole (202) is rectangular in shape and is located at the center of the middle blade plate (1). The hollowed-out groove (201) is located on the upper and lower sides of the hollowed-out hole (202) and is set at the edges on both sides of the middle blade plate (1). The hollowed-out hole (202) and the hollowed-out groove (201) are both made by stamping or cutting. There are four hollowed-out grooves (201), which are located at the four corners of the hollowed-out hole (202).

3. The elastic spill prevention device according to claim 1, characterized in that, The hollowed-out deformation part (200) also includes a connecting plate (211) and a second hollowed-out hole (212). The second hollowed-out hole (212) is elliptical in shape. The connecting plate (211) is located at the center of the middle blade (1). The second hollowed-out hole (212) is located on the upper and lower sides of the connecting plate (211). The second hollowed-out hole (212) is made by either stamping or cutting. There are two second hollowed-out holes (212). The side of the middle blade (1) is made by cutting.

4. The elastic spill prevention device according to claim 1, characterized in that, The hollowed-out deformation part (200) also includes two parts: a hollowed-out hole three (221) and a hollowed-out groove two (222). The hollowed-out hole three (221) is elliptical in shape and is located at the center of the middle blade plate (1). The hollowed-out groove two (222) is located on the upper and lower sides of the connecting plate (211) and is set at the edges on both sides of the middle blade plate (1). The hollowed-out hole three (221) and the hollowed-out groove two (222) are both made by stamping or cutting. The number of hollowed-out groove two (222) is four.

5. A resilient spill prevention device according to any one of claims 2-4, characterized in that, The cutting is performed using any one of water jet cutting, laser cutting, or blade cutting. The surface of the blade (1) is covered with a wear-resistant layer, and the middle part of the blade (1) is also covered with a reinforcing layer.

6. The elastic spill prevention device according to claim 5, characterized in that, The wear-resistant layer is composed of the following components by weight percentage: 25-50% corundum, 15-30% silica powder, 8-15% high manganese steel solder, 8-15% silicon carbide, 3-8% nano carbon powder, 2-6% silica sol, 2-6% sodium tetraborate, 2-6% amino resin, 2-6% tea polyphenols, and 2-6% antistatic agent.

7. The elastic spill prevention device according to claim 5, characterized in that, The reinforcing layers are composed of the following components by mass percentage: 20-30% fiberglass particles, 10-18% sodium silicate, 2-8% titanium dioxide, 12-18% barium carbonate, 4-10% potassium carbonate, and 30-40% sodium chloride.

8. The processing technology of the elastic spill prevention device according to any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Forging the blank After the billet is forged into a rectangular blank, the rectangular blank is machined by a CNC machine tool to obtain the cutter plate (1), wherein the turning parameters of the CNC machine tool are: Roughing: Rotation speed 70-90 r / min, feed rate 0.3-0.4 mm / r, depth of cut 2 mm; Finishing: Rotation speed 150-200 r / min, feed rate 0.15-0.25 mm / r, depth of cut 0.1 mm; Thread machining: rotation speed 150~200r / min, feed rate 0.1~0.2mm / r, depth of cut 0.2~0.3mm; Step 2: Casting and Molding Place the lower edge of the prepared blade plate (1) and the blade (3) into the lower mold. After adjusting the distance between the blade (3) and the blade plate (1), cover the upper mold and connect the blade (3) and the blade plate (1) by casting. After casting, grind the blade using a CNC machine tool. Step 3: Prepare the reinforcing layer Weigh each raw material according to the weight percentage and put it into a mixing tank. Add water and mix to form a mixture. Under vacuum, apply the mixture to the hollow deformation part (200) in the middle of the blade (1) and immediately place it in an ice water bath to cool. Put it back into the vacuum tank and introduce nitrogen gas. After reacting for 1.5 to 2 hours, take it out and dry it at room temperature of 60°C for 4 to 8 hours. Step 4: Prepare the wear-resistant layer The raw materials are weighed according to their weight proportions, and then passed through a stainless steel reactor, a twin-screw extruder, a pulverizer, and a paint tank in sequence to obtain a wear-resistant coating. The coating is then applied to the surface of the blade plate (1) and the cutter (3) by spray gun.

9. The processing technology of the elastic spill prevention device according to claim 8, characterized in that, The specific steps for preparing the reinforcing layer in step three are as follows: Weigh each raw material according to the weight ratio and put it into a mixing tank and add water to mix it to form a mixture. Under a vacuum of 80 kPa, apply the mixture to the hollow deformation part (200) in the middle of the blade (1). During the application, keep the temperature constant and the reaction time is 1.2 to 1.5 h. Immediately place the tube in an ice-water bath to cool to 0°C, put it back into the vacuum tank, and introduce nitrogen gas at 80 sccm. After reacting for 1.5 to 2 h, take it out and dry it at room temperature of 60°C for 4 to 8 h.

10. The processing technology of the elastic spill prevention device according to claim 8, characterized in that, The specific steps for preparing the wear-resistant layer in step four are as follows: After weighing each raw material according to the weight proportions, place it in the stainless steel reactor when the temperature inside is 80-100℃, and raise the temperature to 200-250℃. The reaction time is 3-5 hours, during which the mixture is continuously stirred and vibrated. After the reaction is completed, extrude the mixture through a twin-screw extruder, with the temperature controlled at 90-110℃. After extrusion, let the material stand for 15 minutes, then grind it into wear-resistant powder in a pulverizer, and then inject it into a coating tank. Add water and mix to obtain the wear-resistant coating.

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