A correcting device for the concave die and water absorption plate of a magnetic shoe mold and a method of using the same

Abstract

This invention relates to the field of magnetic tile production technology, specifically disclosing a correction device for the concave mold and water-absorbing plate of a magnetic tile mold, and its usage method. The correction device for the concave mold and water-absorbing plate of a magnetic tile mold has the same arch height for the first arc-shaped portion of the water-absorbing plate and the second arc-shaped portion of the concave mold. An arch height gap is provided below the first and second positioning angles. When no filter cloth is installed between the water-absorbing plate and the concave mold, the first positioning angle of the water-absorbing plate and the second positioning angle of the concave mold coincide. In this invention, the arc of the water-absorbing plate is larger than the arc of the concave mold, and the arch height of the water-absorbing plate's arc is equal to the arch height of the concave mold's arc. The water-absorbing plate and the concave mold each have a first positioning angle and a second positioning angle, with the angles between 30° and 60°. These positioning angles prevent the arc of the water-absorbing plate and the concave mold from deviating during mold installation, preventing the green blank from having a cap, and improving the product yield and production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of magnetic tile production technology, specifically relating to a correction device for the concave mold and water-absorbing plate of a magnetic tile mold and its usage method. Background Technology

[0002] The permanent magnet ferrite mold consists of a concave mold, a convex mold, and a suction plate. The arc of the suction plate matches the arc of the concave mold, and a filter cloth is placed between the arcs of the suction plate and the concave mold. The concave mold, convex mold, and suction plate form a cavity. Slurry is injected into the cavity through the injection hole. Then, under the action of a magnetic field, when the pressure on the green blank reaches the set pressure, the press returns, and the green blank is demolded. After high-temperature sintering, the green blank is ground and finally packaged and cleaned.

[0003] Currently, it is known that the arc of the absorbent plate is 0.5-1.2 mm larger than that of the concave mold, and the arc heights of the concave mold and the absorbent plate are equal. Because the arc of the absorbent plate is larger than that of the concave mold, before the filter cloth is installed, the arc of the absorbent plate rests on the arc of the concave mold, and there is no gap between the absorbent plate and the concave mold at the apex of the arc. However, there are gaps on both sides of the apex of the arc between the absorbent plate and the concave mold. When the absorbent plate is installed on the concave mold, it often shifts left and right along both sides of the arc.

[0004] Misalignment of the absorbent plate often results in the pressed green blank having a cap on both sides, affecting the grinding efficiency and yield during green blank milling. Therefore, this application proposes a correction device for the concave die and absorbent plate of a magnetic tile mold and its usage method. When the filter cloth is not installed, the arc in the absorbent plate and the concave die does not shift, and the two match each other, so that the pressed green blank does not have a cap on both sides. Summary of the Invention

[0005] The purpose of this invention is to provide a correction device for the concave mold and the water-absorbing plate of a magnetic tile mold, and a method for using the same, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a correction device for the concave mold and the water-absorbing plate of a magnetic tile mold, wherein the arch heights of the first arc-shaped part in the water-absorbing plate and the second arc-shaped part in the concave mold are equal, and an arch height gap is provided below the first positioning angle and the second positioning angle in the water-absorbing plate and the concave mold.

[0007] When no filter cloth is installed between the absorbent plate and the concave mold, the first arc vertex in the absorbent plate coincides with the second arc vertex in the concave mold, and the first positioning angle of the absorbent plate coincides with the second positioning angle of the concave mold.

[0008] Preferably, the water-absorbing plate is connected to a lifting unit, which is mounted on a bracket.

[0009] Preferably, two sets of pull belts are installed on both sides of the filter cloth, and the two sets of pull belts are respectively connected to two winding devices.

[0010] Preferably, each set of pull-out belts is provided with three pull-out belts, which are respectively located on the front side, the middle position, and the rear side of the filter cloth.

[0011] Preferably, the pull-out belt passes through the guide unit, which is equipped with a lower guide wheel and an upper guide wheel. Both the lower guide wheel and the upper guide wheel are mounted on a guide frame, which is mounted on a support frame. The outer shell of the winding device is connected to the support frame.

[0012] Preferably, a drying unit is installed on the guide frame in the guiding unit. The drying unit includes a drying box, an air pump is connected to the air inlet of the drying box, a heating unit is provided inside the drying box, and an air outlet is provided inside the drying box. The air outlet is located between the lower guide wheel and the upper guide wheel in the guiding unit, and the air outlet faces the filter cloth between the lower guide wheel and the upper guide wheel.

[0013] Preferably, a squeezing unit is installed at the guide frame in the guiding unit. The squeezing unit includes a squeezing roller, which is located below the upper guide wheel and inserted into the guide frame. The squeezing roller is connected to a spring, and the other end of the spring is connected to the guide frame. A scraper is installed on the upper side of the guide frame and abuts against the outer surface of the filter cloth.

[0014] Preferably, the winding device is connected to the displacement component, and the support frame on the winding device is connected to the displacement component. The displacement component is used to drive the winding device and the filter cloth to move in a direction perpendicular to the moving direction of the lifting unit.

[0015] Preferably, the displacement component is mounted on the lifting frame, the lifting frame is mounted on the lifting slider, there are two lifting sliders, and the two lifting sliders are respectively connected to two lifting guide rails, which are fixedly mounted on the bracket.

[0016] A method for using a correction device for the concave mold and the water-absorbing plate of a magnetic tile mold, comprising the following steps:

[0017] Step 1: The adsorption unit holds the water-absorbing plate, and the lifting unit is activated to send the water-absorbing plate above the concave mold.

[0018] Step 2: Activate the adsorption unit. The adsorption unit will hold the water absorption plate in place. Activate the lifting unit to raise the water absorption plate to a certain height.

[0019] Step 3: Start the displacement assembly. The displacement assembly will move the winding device and filter cloth above the die.

[0020] Step 4: Start the lifting unit. The lifting unit will move the winding device and filter cloth down to a position above the water absorption plate.

[0021] Step 5: Start the two winding devices. The two winding devices will release the two sets of pull belts on the left and right sides, allowing the filter cloth to gradually relax from a taut state and come into contact with the lower concave mold.

[0022] Step 6: Start the lifting unit. The lifting unit will move the water absorption plate down and press the filter cloth onto the concave mold. Then, turn off the adsorption unit and release the water absorption plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. In this invention, the arc of the absorbent plate is larger than that of the die, and the arc height of the absorbent plate is equal to that of the die. The absorbent plate and the die each have a first positioning angle and a second positioning angle, with the angles between 30° and 60°. These positioning angles prevent the arc of the absorbent plate and the die from misalignment during mold installation, preventing the green blank from developing a cap, thus improving product yield and production efficiency.

[0025] II. When the filter cloth is rolled up, the winding device is activated, which drives the filter cloth to rotate and roll it up. During the movement of the filter cloth, it first passes through the guide unit and moves along the guide unit. The drying unit at the guide unit is in the open state. When the drying unit is open, the hot air blown out can accelerate the drying speed of the slurry on the filter cloth. After the slurry is partially solidified, it moves to the position of the extrusion roller. The extrusion roller presses against the filter cloth, and under the action of the spring, the extrusion roller will squeeze the filter cloth, thereby squeezing the slurry off the filter cloth. Above the extrusion roller, there is a scraper. The slurry that has been removed on one side by the extrusion roller comes into contact with the scraper again for a second cleaning operation, and finally the slurry on the filter cloth is scraped clean. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the concave mold and the absorbent plate when the filter cloth is installed in the present invention.

[0027] Figure 2 This is a schematic diagram of the structure of the concave mold and absorbent plate without filter cloth installed in this invention.

[0028] Figure 3 This is one of the structural schematic diagrams of the correction device for the concave mold and the water-absorbing plate of the magnetic tile mold in this invention.

[0029] Figure 4 This is the second schematic diagram of the structure of the correction device for the concave mold and the water-absorbing plate of the magnetic tile mold in this invention.

[0030] Figure 5 The third schematic diagram shows the structure of the correction device for the concave mold and the water-absorbing plate of the magnetic tile mold in this invention.

[0031] Figure 6 This is a schematic diagram of the internal structure of the correction device for the concave mold and the water-absorbing plate of the magnetic tile mold in this invention.

[0032] Figure 7 For the present invention Figure 6 A schematic diagram of the structure at point A in the middle.

[0033] In the diagram: 1. Absorbent plate; 101. First positioning angle; 2. Die; 201. Second positioning angle; 3. Filter cloth; 4. Arch height gap; 5. Lifting unit; 6. Pull-out belt; 7. Guide unit; 701. Lower guide wheel; 702. Upper guide wheel; 8. Drying unit; 801. Drying box; 802. Air pump; 9. Extrusion unit; 901. Extrusion roller; 902. Guide frame; 903. Spring; 904. Scraper; 10. Winding device; 11. Displacement assembly; 12. Lifting frame; 13. Lifting slider; 14. Lifting guide rail. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Reference Figures 1-4 A correction device for the concave mold and the water-absorbing plate of a magnetic tile mold includes a water-absorbing plate 1 and a concave mold 2. Both the concave mold 2 and the water-absorbing plate 1 in the magnetic tile mold have arc-shaped parts, and the diameter of the arc-shaped part of the water-absorbing plate 1 (diameter R1) is larger than the diameter of the arc-shaped part of the concave mold (diameter R2). The difference between the arc-shaped parts of the water-absorbing plate 1 and the concave mold 2, i.e., the difference between R1 and R2, is the thickness of the filter cloth 3.

[0036] Before the filter cloth 3 is installed, the first arc vertex of the absorbent plate 1 coincides with the second arc vertex in the concave mold 2, the arc height (H1) of the absorbent plate 1 is equal to the arc height (H2) of the concave mold, and the first positioning angle 101 in the absorbent plate 1 coincides with the second positioning angle 201 in the concave mold 2.

[0037] With filter cloth 3 installed: the gap between the filter cloth 3 and the concave mold 2 is the difference in size between the arc of the absorbent plate 1 and the arc of the concave mold 2, depending on the thickness of the filter cloth 3. The arc of the absorbent plate 1 and the arc of the concave mold 2 have the same arch height. Since the filter cloth 3 is installed in the middle of the arc, an arch height gap 4 is provided below the first positioning angle 101 and the second positioning angle 201, depending on the thickness of the filter cloth 3.

[0038] Specifically, when the filter cloth 3 is not installed between the absorbent plate 1 and the concave mold 2, the arc of the absorbent plate 1 is 0.5-1.2mm larger than the arc of the concave mold 2. The first arc vertex in the absorbent plate 1 coincides with the second arc vertex in the concave mold 2. The distance between the two sides of the first arc and the two sides of the second arc in the absorbent plate 1 and the concave mold 2 gradually increases from 0 at the first arc vertex and the second arc vertex towards both sides. The arc heights of the arc in the absorbent plate 1 and the arc in the concave mold 2 are equal. The first positioning angle 101 of the absorbent plate 1 coincides with the second positioning angle 201 of the concave mold 2. An arch height gap 4 is provided below the first positioning angle 101 and the second positioning angle 201.

[0039] It should be noted that the water-absorbing plate 1 is connected to the lifting unit 5, and the lifting unit 5 is equipped with an adsorption unit. When the adsorption unit is turned on, it can suck up the water-absorbing plate 1, and when it is turned off, it can lower the water-absorbing plate 1. The lifting unit 5 is installed on the bracket and is used to drive the water-absorbing plate 1 to move up and down, so that the water-absorbing plate 1 and the concave mold 2 can fit together or separate.

[0040] The filter cloth 3 is located between the absorbent plate 1 and the concave mold 2. Before installation, it needs to be laid flat on the concave mold 2. Sometimes the filter cloth 3 is not needed. In order to facilitate the installation and separation of the filter cloth 3 between the absorbent plate 1 and the concave mold 2, two sets of pull belts 6 are installed on both sides of the filter cloth 3. Each set of pull belts 6 has three pull belts 6. The three pull belts 6 are respectively located on the front side, the middle position and the rear side of the filter cloth 3. The two sets of pull belts 6 are respectively connected to two winding devices 10.

[0041] Specifically, the pull-out belt 6 passes through the guide unit 7, which is used to guide the movement of the pull-out belt 6. It should be noted that the guide unit 7 is equipped with a lower guide wheel 701 and an upper guide wheel 702. Both the lower guide wheel 701 and the upper guide wheel 702 are mounted on the guide frame, which is mounted on the support frame. The outer shell of the winding device 10 is connected to the support frame.

[0042] The pull belt 6 is located within the arch height gap 4. The winding device 10 retracts or releases the pull belt 6, thereby driving the pull belt 6 and the filter cloth 3 to move to one side, thereby retracting or unfolding the filter cloth 3. When the filter cloth 3 is retracted, the water absorption plate 1 and the concave mold 2 are in direct contact. If the filter cloth 3 is unfolded, the filter cloth 3 is located between the water absorption plate 1 and the concave mold 2.

[0043] In a further embodiment, a drying unit 8 is installed on the guide frame in the guide unit 7. The drying unit 8 includes a drying chamber 801. The air inlet of the drying chamber 801 is connected to an air pump 802. A heating unit is provided inside the drying chamber 801. The heating unit is used to heat the air sent into the drying chamber 801 by the air pump 802. An air outlet is provided inside the drying chamber 801. The air outlet is located between the lower guide wheel 701 and the upper guide wheel 702 in the guide unit 7. The air outlet faces the filter cloth 3 between the lower guide wheel 701 and the upper guide wheel 702. The heated gas is introduced into the outer surface of the filter cloth 3 to accelerate the drying speed of the material on it (when the filter cloth 3 filters the raw material, some slurry will adhere to its outer surface). It is also more convenient to scrape off the dried material.

[0044] The drying unit 8 dries the slurry adhering to the filter cloth 3. The dried slurry still remains on the filter cloth 3. In order to remove the solidified slurry on the filter cloth 3, an extrusion unit 9 is installed at the guide frame in the guide unit 7. The extrusion unit 9 includes an extrusion roller 901, which is located below the upper guide wheel 702 and is inserted into the guide frame 902. The extrusion roller 901 is connected to a spring 903, and the other end of the spring 903 is connected to the guide frame 902. The spring 903 is used to apply a force to move the extrusion roller 901 toward the side closer to the upper guide wheel 702. A scraper 904 is installed on the upper side of the guide frame 902 and abuts against the outer surface of the filter cloth 3.

[0045] When the filter cloth 3 needs to be retracted, the winding device 10 is activated, which can drive the filter cloth 3 to rotate and retract the filter cloth 3. During the movement of the filter cloth 3, it will first pass through the guide unit 7. The filter cloth 3 moves along the guide unit 7, and the drying unit 8 at the guide unit 7 is in the open state. When the drying unit 8 is open, the hot air blown out can accelerate the drying speed of the slurry on the filter cloth 3. After the slurry is partially solidified, it moves to the position of the extrusion roller 901. The extrusion roller 901 presses against the filter cloth 3, and the extrusion roller 901 will squeeze the filter cloth 3 under the action of the spring 903, thereby squeezing the slurry off the filter cloth 3. Above the extrusion roller 901, there is a scraper 904. The slurry that has been removed on one side by the extrusion roller 901 comes into contact with the scraper 904 again for a second cleaning operation, and finally the slurry on the filter cloth 3 is scraped clean.

[0046] In order to feed the filter cloth 3 between the absorbent plate 1 and the concave mold 2 or to remove the filter cloth 3 from between the absorbent plate 1 and the concave mold 2, the winding device 10 is connected to the displacement component 11. Specifically, the support frame on the winding device 10 is connected to the displacement component 11. The displacement component 11 is used to drive the winding device 10 and the filter cloth 3 to move in a direction perpendicular to the moving direction of the lifting unit 5. The displacement component 11 is set on the lifting frame 12, and the lifting frame 12 is mounted on the lifting slider 13. There are two lifting sliders 13, and the two lifting sliders 13 are respectively connected to two lifting guide rails 14. The lifting guide rails 14 are fixedly mounted on the bracket.

[0047] A method for using a correction device for the concave mold and the water-absorbing plate of a magnetic tile mold includes the following steps:

[0048] Step 1: The adsorption unit holds the water-absorbing plate 1, and the lifting unit 5 is activated to send the water-absorbing plate 1 above the concave mold 2.

[0049] Step 2: Start the adsorption unit. The adsorption unit will hold the water absorption plate 1 in place. Then, start the lifting unit 5 to raise the water absorption plate 1 to a certain height.

[0050] Step 3: Start the displacement assembly 11. The displacement assembly 11 moves the winding device 10 and the filter cloth 3 above the concave mold 2.

[0051] Step 4: Start the lifting unit 5. The lifting unit 5 will move the winding device 10 and the filter cloth 3 down to a position above the water absorption plate 1.

[0052] Step 5: Activate the two winding devices 10. The two winding devices 10 release the two sets of pull belts 6 on the left and right sides, allowing the filter cloth 3 to gradually relax from a taut state, so that the filter cloth 3 contacts the lower concave mold 2. When the filter cloth 3 is in a relaxed state, the water absorption plate 1 moves downward, shaping the filter cloth 3 so that its shape is the same as the arc shape of the water absorption plate 1 and the concave mold 2. It should be mentioned that the filter cloth 3 can also remain taut and pressed on the concave mold 2. Then, when the lifting unit 5 moves the water absorption plate 1 downward, it squeezes the filter cloth 3, and the two winding devices 10 are activated. The two winding devices 10 simultaneously relax the filter cloth 3, allowing the filter cloth 3 to better fit the arc shape of the water absorption plate 1 and the lower side of the concave mold 2, making it less likely to wrinkle.

[0053] Step 6: Activate the lifting unit 5. The lifting unit 5 moves the water absorption plate 1 downward, pressing the filter cloth 3 onto the concave mold 2. Then, turn off the adsorption unit and release the water absorption plate 1. This completes the combination of the water absorption plate 1 and the concave mold 2 with and without the filter cloth 3.

[0054] Working principle:

[0055] The arc of the suction plate 1 is larger than that of the die 2, and the arc height of the suction plate 1 is equal to that of the die 2. The suction plate 1 and the die 2 each have a first positioning angle 101 and a second positioning angle 201, respectively, with the angles between 30° and 60°. These positioning angles prevent the arcs of the suction plate 1 and the die 2 from deviating during mold installation, preventing the green blank from developing a cap, and thus improving product yield and production efficiency.

[0056] The water-absorbing plate 1 and the concave mold 2 are assembled in two ways: one is that a filter cloth 3 is provided between the water-absorbing plate 1 and the concave mold 2, and the other is that no filter cloth 3 is provided between the water-absorbing plate 1 and the concave mold 2. In the former case, the filter cloth 3 needs to be sent between the water-absorbing plate 1 and the concave mold 2, and in the latter case, the filter cloth 3 needs to be pulled out from between the water-absorbing plate 1 and the concave mold 2.

[0057] 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 correction device for a concave mold and a water-absorbing plate of a magnetic tile mold, comprising a water-absorbing plate (1) and a concave mold (2), characterized in that, The arch heights of the first arc-shaped part in the absorbent plate (1) and the second arc-shaped part in the die (2) are equal. An arch height gap (4) is provided below the first positioning angle (101) and the second positioning angle (201) in the absorbent plate (1) and the die (2). When the filter cloth (3) is not installed between the absorbent plate (1) and the concave mold (2), the first arc vertex in the absorbent plate (1) and the second arc vertex in the concave mold (2) coincide, and the first positioning angle (101) of the absorbent plate (1) and the second positioning angle (201) of the concave mold (2) coincide. Two sets of pull belts (6) are installed on both sides of the filter cloth (3), and the two sets of pull belts (6) are respectively connected to two winding devices (10). The pull-out strap (6) passes through the guide unit (7), and a drying unit (8) is installed on the guide frame in the guide unit (7). The drying unit (8) includes a drying box (801). The air inlet of the drying box (801) is connected to an air pump (802). A heating unit is provided inside the drying box (801), and an air outlet is provided inside the drying box (801). The air outlet is located between the lower guide wheel (701) and the upper guide wheel (702) in the guide unit (7), and the air outlet faces the filter cloth (3) between the lower guide wheel (701) and the upper guide wheel (702). A squeezing unit (9) is installed at the guide frame in the guide unit (7). The squeezing unit (9) includes a squeezing roller (901). The squeezing roller (901) is located below the upper guide wheel (702) and is inserted into the guide frame (902). The squeezing roller (901) is connected to a spring (903). The other end of the spring (903) is connected to the guide frame (902). A scraper (904) is installed on the upper side of the guide frame (902). The scraper (904) abuts against the outer surface of the filter cloth (3).

2. The correction device for the concave mold and the water-absorbing plate of a magnetic tile mold according to claim 1, characterized in that, The water-absorbing plate (1) is connected to the lifting unit (5), and the lifting unit (5) is installed on the bracket.

3. The correction device for the concave mold and the water-absorbing plate of a magnetic tile mold according to claim 1, characterized in that, Each set of the pull belts (6) is provided with three pull belts (6), which are respectively located on the front, middle and rear sides of the filter cloth (3).

4. The correction device for the concave mold and the water-absorbing plate of a magnetic tile mold according to claim 1, characterized in that, The guide unit (7) is provided with a lower guide wheel (701) and an upper guide wheel (702). Both the lower guide wheel (701) and the upper guide wheel (702) are mounted on the guide frame. The guide frame is mounted on the support frame. The outer shell of the winding device (10) is connected to the support frame.

5. The correction device for the concave mold and the water-absorbing plate of a magnetic tile mold according to claim 1, characterized in that, The winding device (10) is connected to the displacement component (11). The support frame on the winding device (10) is connected to the displacement component (11). The displacement component (11) is used to drive the winding device (10) and the filter cloth (3) to move in a direction perpendicular to the moving direction of the lifting unit (5).

6. The correction device for the concave mold and the water-absorbing plate of a magnetic tile mold according to claim 5, characterized in that, The displacement component (11) is set on the lifting frame (12), the lifting frame (12) is installed on the lifting slider (13), there are two lifting sliders (13), and the two lifting sliders (13) are respectively connected to two lifting guide rails (14), and the lifting guide rails (14) are fixedly installed on the bracket.

7. A method of using a correction device for the concave mold and the water-absorbing plate of a magnetic tile mold, characterized in that, The correction device for the concave mold and the water-absorbing plate of the magnetic tile mold according to any one of claims 1-6, when used, includes the following steps: Step 1: The adsorption unit sucks up the water-absorbing plate (1), and the lifting unit (5) is activated to send the water-absorbing plate (1) above the concave mold (2); Step 2: Start the adsorption unit. The adsorption unit will suck up the water absorption plate (1). Start the lifting unit (5) to raise the water absorption plate (1) to a certain height. Step 3: Start the displacement assembly (11). The displacement assembly (11) moves the winding device (10) and filter cloth (3) above the die (2). Step 4: Start the lifting unit (5). The lifting unit (5) will move the winding device (10) and filter cloth (3) down to the position above the water absorption plate (1). Step 5: Start the two winding devices (10). The two winding devices (10) release the two sets of pull belts (6) on the left and right sides, allowing the filter cloth (3) to gradually relax from a taut state and make the filter cloth (3) contact the lower concave mold (2). Step 6: Start the lifting unit (5). The lifting unit (5) moves the water absorption plate (1) down and presses the filter cloth (3) onto the concave mold (2). Turn off the adsorption unit and release the water absorption plate (1).

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