Correcting device for female die and water absorption plate of magnetic shoe die and using method of correcting device

Abstract

The invention relates to the technical field of magnetic shoe production, and particularly discloses a correcting device for a female die and a water absorption plate of a magnetic shoe die and a using method of the correcting device. According to the correction device for the female die and the water absorption plate of the magnetic shoe die, the arch height of a first arc-shaped part in the water absorption plate is equal to that of a second arc-shaped part of the female die, and an arch height gap is formed below a first positioning included angle and a second positioning included angle; and when the filter cloth is not mounted between the water absorption plate and the female die, the first positioning included angle of the water absorption plate coincides with the second positioning included angle of the female die. The arc of the water absorption plate is larger than that of the female die, the arch height of the water absorption plate is equal to that of the arc of the female die, a first positioning included angle and a second positioning included angle are formed in the water absorption plate and the female die respectively, and the angle of the two positioning included angles ranges from 30 degrees to 60 degrees. The positioning included angle is used for preventing arc deviation of the water absorption plate and the female die when the die is installed and preventing a green body from being capped, and the finished product rate and the production efficiency of products can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of magnetic tile production, and in particular relates to a correction device for a concave mold and a water absorption plate of a magnetic tile mold and a use method thereof. Background Art

[0002] The permanent ferrite mold is divided into a concave mold, a convex mold, and a water-absorbing plate. The arc of the water-absorbing plate matches the arc of the concave mold, and there is a layer of filter cloth between the arc of the water-absorbing plate and the arc of the concave mold. The concave mold, the convex mold and the water-absorbing plate form a cavity. The slurry is injected into the cavity through the injection hole. Then, under the action of the magnetic field, when the pressure on the green body reaches the set pressure, the press returns and the mold is demolded to form a green body. The green body is then sintered at high temperature and then put into grinding for grinding, and finally packaged and cleaned.

[0003] The arc of the water absorption plate is known to be 0.5-1.2mm larger than the arc of the die, and the arc of the die and the arc of the water absorption plate are equal. Since the arc of the water absorption plate is larger than the arc of the die, before the filter cloth is installed, the arc of the water absorption plate is placed on the arc of the die, and there is no gap between the water absorption plate and the die at the vertex of the arc. However, there is a gap between the water absorption plate and the die on both sides of the vertex of the arc. When the water absorption plate is installed on the die, the water absorption plate often deviates left and right along both sides of the arc.

[0004] The deflection of the water absorption plate will often cause the pressed green body to have caps, which will affect the grinding efficiency and yield rate of the green body. Therefore, the present application proposes a correction device for the concave mold and the water absorption plate of a magnetic tile mold and a method for using the same. When the filter cloth is not installed, the arcs in the water absorption plate and the concave mold are not deflected, and the two are matched with each other, so that the pressed green body has no caps on both sides. Summary of the invention

[0005] The object of the present invention is to provide a correction device for the concave mold and the water absorption plate of a magnetic tile mold and a method of using the same to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a correction device for a concave mold and a water absorption plate of a magnetic tile mold, wherein the arch heights of the first arc portion of the water absorption plate and the second arc portion of 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 absorption plate and the concave mold;

[0007] When the filter cloth is not installed between the water absorption plate and the concave mold, the first arc vertex in the water absorption plate coincides with the second arc vertex in the concave mold, and the first positioning angle of the water absorption plate coincides with the second positioning angle of the concave mold.

[0008] Preferably, the water absorption plate is connected to a lifting unit, and the lifting unit is installed on a bracket.

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

[0010] Preferably, three draw-through belts are provided in each group of the draw-through belts, and the three draw-through belts are respectively provided at the front side, the middle position and the rear side of the filter cloth.

[0011] Preferably, the pull belt passes through a guide unit, and a lower guide wheel and an upper guide wheel are provided in the guide unit. The lower guide wheel and the upper guide wheel are both installed on a guide frame, and the guide frame is arranged on a support frame, and the shell of the winding device is connected to the support frame.

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

[0013] Preferably, an extrusion unit is installed on the guide frame in the guide unit, and the extrusion unit includes an extrusion roller, which is located at the lower side of the upper guide wheel and is inserted into the guide frame. The extrusion 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 the scraper rests on the outer surface of the filter cloth.

[0014] Preferably, the winding device is connected to a displacement assembly, a support frame on the winding device is connected to the displacement assembly, and the displacement assembly 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 assembly is arranged on a lifting frame, the lifting frame is mounted on a lifting slider, two lifting sliders are provided, and the two lifting sliders are respectively connected to two lifting guide rails, and the lifting guide rails are fixedly mounted on the bracket.

[0016] A method for using a correction device for a concave mold of a magnetic tile mold and a water absorption plate, wherein the correction device for the concave mold of the magnetic tile mold and the water absorption plate comprises the following steps when used:

[0017] Step 1: The adsorption unit absorbs the water absorption plate, and the lifting unit is started to send the water absorption plate to the top of the die;

[0018] Step 2: Start the adsorption unit, which will absorb the water absorption plate, and start the lifting unit to lift the water absorption plate to a certain height;

[0019] Step 3: Start the displacement assembly, which moves the winding device and the filter cloth to the top of the die;

[0020] Step 4: Start the lifting unit, which moves the winding device and the filter cloth down to the position above the water absorption plate;

[0021] Step 5: Start the two winding devices, which release the left and right sets of drawing belts, allowing the filter cloth to gradually relax from the stretched state and contact the lower concave mold;

[0022] Step 6: Start the lifting unit, which drives the water absorption plate to move downward, presses the filter cloth onto the die, and closes the adsorption unit to release the water absorption plate.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The arc of the water-absorbing plate of the present invention is larger than that of the concave die, and the arch height of the water-absorbing plate is equal to that of the concave die. The water-absorbing plate and the concave die are provided with a first positioning angle and a second positioning angle respectively, and the angles of the two positioning angles are between 30° and 60°. The positioning angle is to prevent the arc of the water-absorbing plate and the concave die from deviating when installing the mold, and to prevent the green blank from being capped, thereby improving the product yield and production efficiency.

[0025] 2. When the filter cloth is rolled up, the present invention starts the winding device, which can drive the filter cloth to rotate and roll up the filter cloth. During the movement of the filter cloth, the filter cloth will first pass through the guide unit, and the filter cloth moves along the guide unit, while the drying unit at the guide unit is in an open state. When the drying unit is turned on, 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 squeezing roller, and the squeezing roller is against the filter cloth. The squeezing roller squeezes the filter cloth under the action of the spring, thereby squeezing the slurry on the filter cloth off, and a scraper is provided above the squeezing roller. The slurry on one side that has been cleaned by the squeezing roller contacts the scraper again for a second cleaning operation, and finally the slurry on the filter cloth is scraped off. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 2 It is a schematic diagram of the structure of the concave mold and the water absorption plate in the present invention when the filter cloth is not installed.

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

[0029] Figure 4 This is the second structural schematic diagram of the correction device of the concave mold and the water absorption plate of the magnetic tile mold in the present invention.

[0030] Figure 5 The third schematic diagram of the structure of the correction device of the concave mold and the water absorption plate of the magnetic tile mold in the present invention.

[0031] Figure 6 It is a schematic diagram of the internal structure of the concave mold of the magnetic tile mold and the correction device of the water absorption plate in the present invention.

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

[0033] In the figure: 1. water absorption plate; 101. first positioning angle; 2. die; 201. second positioning angle; 3. filter cloth; 4. arch height gap; 5. lifting unit; 6. pulling 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 slide block; 14. lifting rail. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Reference Figure 1-Figure 4 A correction device for a concave mold and a water absorption plate of a magnetic tile mold includes a water absorption plate 1 and a concave mold 2. The concave mold 2 and the water absorption plate 1 in the magnetic tile mold both have arc-shaped portions, and the diameter of the arc-shaped portion of the water absorption plate 1 (diameter R1) is larger than the diameter of the arc-shaped portion of the concave mold (diameter R2). The difference between the arc-shaped portions in the water absorption plate 1 and the concave mold 2, that is, 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 water-absorbing plate 1 coincides with the second arc vertex in the die 2, the arc height (H1) of the water-absorbing plate 1 is equal to the arc height (H2) of the die, and the first positioning angle 101 in the water-absorbing plate 1 coincides with the second positioning angle 201 in the die 2.

[0037] When the filter cloth 3 is installed: according to the thickness of the filter cloth 3, the gap of the middle filter cloth 3 is the size difference between the arc of the water absorption plate 1 and the arc of the die 2. The arch height of the arc of the water absorption plate 1 is equal to that of the arc of the die 2. Since the filter cloth 3 is installed in the middle of the arc, according to the thickness of the filter cloth 3, an arch height gap 4 is set below the first positioning angle 101 and the second positioning angle 201.

[0038] Specifically, when the filter cloth 3 is not installed between the water absorption plate 1 and the die 2, the arc of the water absorption plate 1 is 0.5-1.2 mm larger than the arc of the die 2, the vertex of the first arc in the water absorption plate 1 and the vertex of the second arc in the die 2 coincide, and the spacing between the two sides of the first arc and the two sides of the second arc in the water absorption plate 1 and the die 2 gradually increases from 0 at the vertex of the first arc and the vertex of the second arc to both sides. The arch heights of the arc in the water absorption plate 1 and the arc of the die 2 are equal, the first positioning angle 101 of the water absorption plate 1 and the second positioning angle 201 of the die 2 coincide, and 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 absorption plate 1 is connected to the lifting unit 5, and an adsorption unit is installed on the lifting unit 5. When the adsorption unit is turned on, the water absorption plate 1 can be adsorbed, and when it is closed, the water absorption plate 1 can be lowered. The lifting unit 5 is installed on the bracket, and the lifting unit 5 is used to drive the water absorption plate 1 to move up and down, so that the water absorption plate 1 and the die 2 can be matched or separated from each other.

[0040] The filter cloth 3 is located between the water absorption plate 1 and the die 2. It needs to be spread flat on the die 2 before installation, and sometimes the filter cloth 3 is not needed. In order to facilitate the installation and separation of the filter cloth 3 between the water absorption plate 1 and the die 2, two groups of pull-out belts 6 are installed on both sides of the filter cloth 3. Three pull-out belts 6 are arranged in each group of pull-out belts 6. The three pull-out belts 6 are respectively arranged on the front side, the middle position, and the rear side of the filter cloth 3. The two groups of pull-out belts 6 are respectively connected to two winding devices 10.

[0041] Specifically, the drawstring belt 6 passes through the guide unit 7, and the guide unit 7 is used to provide guidance for the movement of the drawstring belt 6. It should be noted that a lower guide wheel 701 and an upper guide wheel 702 are provided in the guide unit 7. The lower guide wheel 701 and the upper guide wheel 702 are both installed on a guide frame, and the guide frame is arranged on a support frame. The outer shell of the winding device 10 is connected to the support frame.

[0042] The pull belt 6 is located in the arch gap 4, and the winding device 10 reels in or releases the pull belt 6, thereby driving the pull belt 6 and the filter cloth 3 to move to one side, thereby reeling in and unfolding the filter cloth 3. When the filter cloth 3 is reeled in, the water absorption plate 1 is in direct contact with the die 2. If the filter cloth 3 is unfolded, the filter cloth 3 is located between the water absorption plate 1 and the die 2.

[0043] In a further embodiment, a drying unit 8 is installed on the guide frame in the guide unit 7, and the drying unit 8 includes a drying box 801. The air inlet end of the drying box 801 is connected to the air pump 802. A heating unit is arranged inside the drying box 801. The heating unit is used to heat the air delivered into the drying box 801 by the air pump 802, and an air outlet is arranged in 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. The heated gas is passed into the outer surface of the filter cloth 3, thereby accelerating the drying speed of the material thereon (when the filter cloth 3 filters the raw material, part of the slurry will adhere to its outer surface), and it is more convenient to scrape off the dried material.

[0044] The drying unit 8 dries the slurry adhered to the filter cloth 3, and 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, and the extrusion unit 9 includes an extrusion roller 901, which is located at the lower side of the upper guide wheel 702, and the extrusion roller 901 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 close to the upper guide wheel 702. A scraper 904 is installed on the upper side of the guide frame 902, and the scraper 904 is against the outer surface of the filter cloth 3.

[0045] When the filter cloth 3 needs to be rolled up, the winding device 10 is started, which can drive the filter cloth 3 to rotate and roll up the filter cloth 3. During the movement of the filter cloth 3, it will first pass through the guide unit 7, and the filter cloth 3 moves along the guide unit 7, while the drying unit 8 at the guide unit 7 is in an open state. When the drying unit 8 is turned on, 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 squeezing roller 901, and the squeezing roller 901 is against the filter cloth 3. Under the action of the spring 903, the squeezing roller 901 squeezes the filter cloth 3, thereby squeezing the slurry on the filter cloth 3 down, and a scraper 904 is provided above the squeezing roller 901. The slurry on one side that has been cleaned by the squeezing roller 901 contacts the scraper 904 again for a second cleaning operation, and finally the slurry on the filter cloth 3 is scraped off.

[0046] In order to feed the filter cloth 3 between the water absorption plate 1 and the die 2 or take the filter cloth 3 away from between the water absorption plate 1 and the die 2, the winding device 10 is connected to the displacement assembly 11. Specifically, the support frame on the winding device 10 is connected to the displacement assembly 11. The displacement assembly 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 assembly 11 is arranged on the lifting frame 12, and the lifting frame 12 is installed on the lifting slider 13. Two lifting sliders 13 are provided, 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.

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

[0048] Step 1: The adsorption unit adsorbs the water absorption plate 1, and the lifting unit 5 is started to send the water absorption plate 1 to the top of the die 2;

[0049] Step 2: Start the adsorption unit, which absorbs the water absorption plate 1, and start the lifting unit 5 to lift the water absorption plate 1 to a certain height;

[0050] Step 3: Start the displacement assembly 11, and the displacement assembly 11 moves the winding device 10 and the filter cloth 3 to above the die 2;

[0051] Step 4: Start the lifting unit 5, which moves the winding device 10 and the filter cloth 3 down to a position above the water absorption plate 1;

[0052] Step 5, start the two winding devices 10, the two winding devices 10 release the left and right sets of drawing belts 6, let the filter cloth 3 gradually relax from the stretched state, and let the filter cloth 3 contact the lower concave mold 2; when the filter cloth 3 is in a relaxed state and the water absorption plate 1 moves downward, the shape of the filter cloth 3 can be shaped so that its appearance presents the same arc shape as the water absorption plate 1 and the concave mold 2. It should be mentioned that the filter cloth 3 can also be kept stretched and pressed on the concave mold 2, and then when the lifting unit 5 drives the water absorption plate 1 to move downward, the filter cloth 3 is squeezed, and the two winding devices 10 are started, and the two winding devices 10 simultaneously relax the filter cloth 3, so that the filter cloth 3 can better fit the shape of the arc structure on the lower side of the water absorption plate 1 and the concave mold 2, and wrinkles are not easy to appear.

[0053] Step 6: Start the lifting unit 5, which drives the water absorbing plate 1 to move downward, presses the filter cloth 3 on the die 2, and closes the adsorption unit to release the water absorbing plate 1. In this way, the combination work between the water absorbing plate 1 and the die 2 with and without the filter cloth 3 is completed.

[0054] Working principle:

[0055] The arc of the water absorption plate 1 is larger than that of the concave die 2, and the arch height of the water absorption plate 1 is equal to the arch height of the arc of the concave die 2. The water absorption plate 1 and the concave die 2 are respectively provided with a first positioning angle 101 and a second positioning angle 201, and the angles of the two positioning angles are between 30° and 60°. The positioning angle is used to prevent the arc of the water absorption plate 1 and the concave die 2 from deviating when installing the mold, and to prevent the green blank from being capped, thereby improving the product yield and production efficiency.

[0056] The water-absorbing plate 1 cooperates with the die 2. During assembly, there are two situations. One situation is that a filter cloth 3 is arranged between the water-absorbing plate 1 and the die 2, and the other situation is that the filter cloth 3 is not arranged between the water-absorbing plate 1 and the die 2. The former situation requires that the filter cloth 3 be sent between the water-absorbing plate 1 and the die 2, and the latter situation requires that the filter cloth 3 be pulled out from between the water-absorbing plate 1 and the die 2.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A correction device for a concave mold and a water absorption plate of a magnetic tile mold, comprising a water absorption plate (1) and a concave mold (2), characterized in that: The arch heights of the first arc-shaped portion of the water-absorbing plate (1) and the second arc-shaped portion of the concave mold (2) are equal, and an arch height gap (4) is provided below the first positioning angle (101) and the second positioning angle (201) in the water-absorbing plate (1) and the concave mold (2); When the filter cloth (3) is not installed between the water absorption plate (1) and the concave die (2), the first arc vertex in the water absorption plate (1) and the second arc vertex in the concave die (2) coincide with each other, and the first positioning angle (101) of the water absorption plate (1) and the second positioning angle (201) of the concave die (2) coincide with each other.

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

3. The correction device for the concave mold and the water absorption plate of a magnetic tile mold according to claim 1 is characterized in that: Two sets of draw-in belts (6) are respectively installed on both sides of the filter cloth (3), and the two sets of draw-in belts (6) are respectively connected to two winding devices (10).

4. The correction device for the concave mold and the water absorption plate of a magnetic tile mold according to claim 3 is characterized in that: Three draw-through belts (6) are arranged in each group of the draw-through belts (6), and the three draw-through belts (6) are arranged at the front side, the middle position and the rear side of the filter cloth (3), respectively.

5. The correction device for the concave mold and the water absorption plate of a magnetic tile mold according to claim 3 is characterized in that: The drawstring belt (6) passes through the guide unit (7), and a lower guide wheel (701) and an upper guide wheel (702) are provided in the guide unit (7). The lower guide wheel (701) and the upper guide wheel (702) are both installed on a guide frame, and the guide frame is arranged on a support frame. The outer shell of the winding device (10) is connected to the support frame.

6. The correction device for the concave mold and the water absorption plate of the magnetic tile mold according to claim 5 is characterized in that: A drying unit (8) is installed on the guide frame in the guide unit (7), and the drying unit (8) comprises a drying box (801). The air inlet end of the drying box (801) is connected to the air pump (802), a heating unit is arranged inside the drying box (801), and an air outlet end is arranged inside the drying box (801), the air outlet end is located between the lower guide wheel (701) and the upper guide wheel (702) in the guide unit (7), and the air outlet end faces the filter cloth (3) between the lower guide wheel (701) and the upper guide wheel (702).

7. The correction device for the concave mold and the water absorption plate of the magnetic tile mold according to claim 6 is characterized in that: A squeezing unit (9) is installed at the guide frame in the guide unit (7), and the squeezing unit (9) comprises a squeezing roller (901), the squeezing roller (901) is located at the lower side of the upper guide wheel (702), and the squeezing roller (901) is inserted into the guide frame (902), the squeezing roller (901) is connected to a spring (903), and the other end of the spring (903) is connected to the guide frame (902), and a scraper (904) is installed on the upper side of the guide frame (902), and the scraper (904) is against the outer surface of the filter cloth (3).

8. The correction device for the concave mold and the water absorption plate of a magnetic tile mold according to claim 3 is characterized in that: The winding device (10) is connected to a displacement assembly (11), a support frame on the winding device (10) is connected to the displacement assembly (11), and the displacement assembly (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).

9. The correction device for the concave mold and the water absorption plate of the magnetic tile mold according to claim 8, characterized in that: The displacement assembly (11) is arranged on a lifting frame (12), the lifting frame (12) is mounted on a lifting slider (13), two lifting sliders (13) are arranged, the two lifting sliders (13) are respectively connected to two lifting guide rails (14), and the lifting guide rails (14) are fixedly mounted on the bracket.

10. A method for using a correction device for a concave mold and a water-absorbing plate of a magnetic tile mold, characterized in that: According to the correction device for the concave mold and the water absorption plate of the magnetic tile mold according to any one of claims 1 to 9, the correction device for the concave mold and the water absorption plate of the magnetic tile mold comprises the following steps when used: Step 1: The adsorption unit adsorbs the water absorption plate (1), and the lifting unit (5) is started to move the water absorption plate (1) to the top of the concave mold (2); Step 2: Start the adsorption unit, which adsorbs the water absorption plate (1), and start the lifting unit (5) to lift the water absorption plate (1) to a certain height; Step 3: Start the displacement assembly (11), and the displacement assembly (11) moves the winding device (10) and the filter cloth (3) to the top of the concave mold (2); Step 4: Start the lifting unit (5), and the lifting unit (5) moves the winding device (10) and the filter cloth (3) downward to a position above the water absorption plate (1); Step 5: start the two winding devices (10), and the two winding devices (10) release the left and right sets of drawing belts (6), so that the filter cloth (3) is gradually relaxed from the stretched state, and the filter cloth (3) is brought into contact with the lower concave mold (2); Step 6: Start the lifting unit (5), which drives the water absorption plate (1) to move downward, presses the filter cloth (3) onto the concave mold (2), and closes the adsorption unit to release the water absorption plate (1).

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