Die sticking excess material cleaning device and die sticking excess material cleaning method

Abstract

The invention provides a mold sticking excess material cleaning device and method. The mold sticking excess material cleaning device comprises a heating table, a supporting rod, a mold table and a scraping piece. The bottom end of the supporting rod is connected with the side face of the heating table. The mold table is arranged above the heating table. The mold table is of a frame structure, and the bottom face of the side face of the mold table is connected with the top face of the heating table. And the scraping blade is connected with the upper end of the supporting rod. When the mold sticking excess material cleaning device is used for cleaning mold sticking excess materials, the scalding risk does not exist, safety and effectiveness are achieved, and operation is convenient and fast; the die surface cannot be damaged, and the service life of the die is prolonged; extra conditions such as mold cleaning glue and laser are not needed, the structure is simple, and the cost is low.

Description

Technical Field

[0001] The present invention belongs to the technical field of plastic processing, and particularly relates to a device for cleaning the leftover materials adhered to the mold. In addition, the present invention also relates to a method for cleaning the leftover materials adhered to the mold. Background Art

[0002] Thermoforming refers to heating and softening plastic in a mold and then applying pressure to form it, which is a common plastic processing method. Compared with other plastic processing methods, thermoforming has the advantages of cheap molds, uniform finished product thickness, and simple process, so it is widely used. In industrial production, thermoforming is generally carried out in two steps, that is, first making a sheet by casting, and then thermoforming with a mold.

[0003] In scientific research and small-scale processing, due to limited conditions, usually only one step is adopted, that is, putting the resin into the mold and then compressing it between two hot plates. In this method, the amount of resin added to the mold is calculated from the mold volume and resin density. However, the bulk density of the resin is often less than the actual density, resulting in the stacking height of the resin in the mold being greater than the mold depth after the resin is put into the mold. When the resin to be formed exists in the form of powder or floc, it is extremely easy to overflow. In addition, when the mold shape is irregular, inaccurate calculation of the mold volume may result in more resin being put into the mold than actually required. The above two reasons can both cause resin to overflow during thermoforming and adhere to the mold after cooling, forming adhered mold. The uneven surface of the mold will also cause leftover materials adhered to the mold. The main reasons for the uneven surface of the mold may be as follows: First, bumps and / or scars, chisel marks, scratches left when removing the leftover materials adhered to the mold during repeated use of the mold; Second, there are residues of leftover materials adhered to the mold that were not cleaned up before on the mold surface.

[0004] Due to the great adhesion force between the leftover materials adhered to the mold and the mold, it is very difficult to remove the leftover materials adhered to the mold at room temperature. The commonly used method is to first put the mold into the upper and lower hot plates to heat and soften the leftover materials adhered to the mold, and then take it out and immediately use a copper brush or a scraper to remove it. During the removal process, due to the high temperature of the mold, there is a risk of scalding; moreover, long-term repeated scraping of the mold with a copper brush or a scraper may increase the surface roughness of the mold and exacerbate the mold adhesion effect.

[0005] In addition to the above general methods, existing public patents have also proposed other mold cleaning methods. CN212795580U discloses a laser mold cleaning device for a prepreg electric box cover thermoforming mold, which automatically sweeps the mold to be cleaned with laser energy to remove stubborn mold release agents and residues on the mold. CN103205032A discloses a mold cleaning glue for cleaning molds repeatedly subjected to thermoforming.

[0006] In view of this, on the premise of not damaging the mold surface, developing a device for cleaning the leftover material sticking to the mold that can eliminate the hidden danger of scalding and does not require additional conditions such as mold cleaning glue or lasers has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0007] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art, and provides a device for cleaning the leftover material sticking to the mold. On the one hand, a scraping blade made of a specific material ensures that the mold surface will not be damaged during the process of cleaning the leftover material sticking to the mold. On the other hand, the scraping blade made of a specific material and the mold table eliminate the hidden danger of scalding during the process of cleaning the leftover material sticking to the mold.

[0008] The present invention is achieved through the following technical solutions:

[0009] One of the invention purposes of the present invention is to provide a device for cleaning the leftover material sticking to the mold, and the device for cleaning the leftover material sticking to the mold includes:

[0010] A heating table;

[0011] A support rod, the bottom end of which is connected to the side surface of the heating table:

[0012] A mold table, arranged above the heating table; the mold table is of a frame structure, and the bottom surface of the side surface of the mold table is connected to the top surface of the heating table;

[0013] A scraping blade, connected to the upper end of the support rod.

[0014] In a preferred embodiment of the present invention, the device for cleaning the leftover material sticking to the mold further includes at least two mold fixing members, one end of the mold fixing member is connected to the mold table, and the other end of the mold fixing member abuts against the side surface of the mold.

[0015] In a preferred embodiment of the present invention, a movable plate is arranged between the heating table and the mold table; the movable plate is movably connected to the heating table, and the movable plate is movably connected to the mold table.

[0016] In a preferred embodiment of the present invention, an elastic member is arranged between the support rod and the scraping blade.

[0017] In a preferred embodiment of the present invention, a heat insulation layer is arranged on the outer surface of the mold table, and the material of the heat insulation layer is any one of fiberglass, asbestos, rock wool, silicate, aerogel felt, and vacuum plate.

[0018] In a preferred embodiment of the present invention, a heat insulation outer shell is arranged outside the heating table, and the top surface of the heat insulation outer shell is open; the bottom end of the support rod is connected to the side surface of the heat insulation outer shell.

[0019] In a preferred embodiment of the present invention, the heating table is any one of an electric hot plate, a gas lamp, and an electric furnace.

[0020] In a preferred embodiment of the present invention,

[0021] the heat distortion temperature of the blade is higher than 150 °C, and the thermal conductivity of the blade is 0.1 - 0.5 Wm -1 K -1 ; the Shore D hardness of the blade is 50 - 90; and / or

[0022] the heat distortion temperature of the mold table is higher than 150 °C, and the thermal conductivity of the mold table is 0.1 - 0.5 Wm -1 K -1 ;

[0023] Preferably,

[0024] the material of the blade is any one of polyoxymethylene, nylon, polysulfone, polyethersulfone, polyphenylene sulfide, polyetheretherketone, polyimide, polytetrafluoroethylene, polyphenylene oxide, reinforced polypropylene, reinforced nylon, reinforced polybutylene terephthalate, and reinforced polyethylene terephthalate; and / or

[0025] the material of the mold table is any one of polyoxymethylene, nylon, polysulfone, polyethersulfone, polyphenylene sulfide, polyetheretherketone, polyimide, polytetrafluoroethylene, polyphenylene oxide, reinforced polypropylene, reinforced nylon, reinforced polybutylene terephthalate, and reinforced polyethylene terephthalate; and / or

[0026] the material of the movable plate is metal.

[0027] The second object of the present invention is to provide a method for cleaning mucosal residues, which is characterized by including the following steps:

[0028] (1) Place a film on the upper surface of the heating table; place the mold in the mold table and fix it with a mold fixing member; wherein, the side with mucosal residues faces upward;

[0029] (2) Turn on the heating table to soften the adhered mold residues, turn off the heating table and clean the adhered mold residues;

[0030] (3) After the mold cools down, take out the mold and the film in sequence;

[0031] Preferably, it further includes the following steps

[0032] (4) Place a film on the upper surface of the heating table; place the mold in the mold table and fix it with a mold fixing member; wherein, the side facing upward in step (1) faces downward;

[0033] (5) Turn on the heating table to soften the adhered mold residues, turn off the heating table and clean the adhered mold residues;

[0034] (6) After the mold cools down, take out the mold and the film in sequence.

[0035] The third object of the present invention is to provide another method for cleaning mucosal residue, including the following steps:

[0036] (1) Place the mold in the mold table and fix it with a mold fixing part; among them, the side with mucosal residue faces upward.

[0037] (2) Turn on the heating table to soften the sticky mold residue, turn off the heating table and clean the sticky mold residue.

[0038] (3) After the mold cools down, take out the mold, pull out the movable plate, clean the debris and then put it back in place.

[0039] Or

[0040] (1) Place a film on the upper surface of the movable plate; place the mold in the mold table and fix it with a mold fixing part.

[0041] (2) Turn on the heating table to soften the sticky mold residue, turn off the heating table and clean the sticky mold residue.

[0042] (3) After the mold cools down, take out the mold, pull out the movable plate, remove the film and then put it back in place.

[0043] (4) Place the mold in the mold table and fix it with a mold fixing part; among them, the side that faces upward in step (1) faces downward.

[0044] (5) Turn on the heating table to soften the sticky mold residue, turn off the heating table and clean the sticky mold residue.

[0045] (6) After the mold cools down, take out the mold, pull out the movable plate, clean the debris and then put it back in place.

[0046] Compared with the prior art, the beneficial effects of the present invention are:

[0047] 1. When using the present invention to clean the sticky mold residue, there is no risk of scalding, which is both safe and effective and convenient to operate.

[0048] 2. When using the present invention to clean the sticky mold residue, it will not damage the surface of the mold, and the service life of the mold can be extended.

[0049] 3. When using the present invention to clean the sticky mold residue, no additional conditions such as mold cleaning glue or laser are required, and the structure is simple and the cost is low. Description of the Drawings

[0050] Figure 1 It is a schematic structural diagram of the device for cleaning sticky mold residue of the present invention;

[0051] In the figure, 1 - support rod, 2 - scraping blade, 3 - heating table, 4 - spring, 5 - mold table, 6 - movable plate, 7 - fixing screw. Detailed implementation manner

[0052] The present invention will be further described in detail below with reference to the accompanying drawings:

[0053] As Figure 1 shown, the present invention provides a device for cleaning the remaining sticky material on the mold. The device for cleaning the remaining sticky material on the mold includes a support rod 1, a heating table 3, a mold table 5, an elastic member, and a scraping blade 2. Among them, the support rod 1 is vertically arranged, the bottom end of the support rod 1 is connected to the side surface of the heating table 3, and the rest of the support rod 1 extends upward.

[0054] A mold table 5 is arranged above the heating table 3. The mold table 5 is a frame structure, that is, it is through from top to bottom and only includes the side surfaces. The bottom surface of the side surface of the mold table 5 is connected to the top surface of the heating table 3. Specifically in this embodiment, as Figure 1 shown, the mold table 5 is a square frame structure, which only includes four side surfaces, and the bottom surface of its side surface is connected to the heating table 3 through four connecting members.

[0055] A hollow accommodating portion is formed inside the mold table 5, and this hollow accommodating portion is used to accommodate the mold. The heating table 3 transfers heat to the mold placed inside the mold table 5, so that the remaining sticky material on the surface of the mold is heated and softened. Preferably, the heating table 3 can adopt any one of an electric heating plate, a gas lamp, and an electric furnace, and preferably an electric heating plate is adopted. More preferably, a heat insulation shell is arranged outside the heating table 3, the top surface of the heat insulation shell is open, and the other five surfaces cover the four side surfaces and the bottom surface of the heating table 3. The bottom end of the support rod 1 is connected to the side surface of the heat insulation shell.

[0056] In one of the preferred embodiments of the present invention, the device for cleaning the remaining sticky material on the mold further includes at least two mold fixing members. One end of the mold fixing member is connected to the mold table 5, and the other end of the mold fixing member abuts against the side surface of the mold to fix the mold placed inside the mold table 5. Specifically in this embodiment, the mold fixing member is a fixing screw 7, and the number of the fixing screws 7 is four. Threaded holes matching the fixing screws 7 are arranged on the four side surfaces of the mold table 5. The four fixing screws 7 pass through the four threaded holes and finally abut against the four side surfaces of the mold. Since the sizes of different molds are not the same, the tightness of the four fixing screws 7 can be adjusted according to the mold size to fix the mold. In this way, when cleaning the remaining sticky material on the mold, the mold will not shake back and forth or left and right, which is more convenient for operation.

[0057] In another preferred embodiment of the present invention, the shape enclosed by the square frame on the bottom surface of the mold table 5 is the same as the shape of the top surface of the heating table 3, and the shape enclosed by the square frame on the top surface of the mold table 5 is also the same as the shape of the top surface of the heating table 3. Specifically, in this embodiment, Figure 1 the top surface of the heating table 3, the shape enclosed by the square frame on the bottom surface of the mold table 5, and the shape enclosed by the square frame on the top surface of the mold table 5 are all square, but this does not limit the shape of the top surface of the heating table 3, the shape enclosed by the square frame on the bottom surface of the mold table 5, and the shape enclosed by the square frame on the top surface of the mold table 5, and it can also be other shapes. More preferably, the height of the mold table 5 is 10 - 30 mm, preferably 10 - 20 mm, to be applicable to molds with different thicknesses, especially suitable for fixing thicker molds.

[0058] In a preferred embodiment of the present invention, the material of the mold table 5 is selected from high molecular materials with a heat distortion temperature higher than 150 degrees, specifically including but not limited to any one of polyoxymethylene, nylon, polysulfone, polyethersulfone, polyphenylene sulfide, polyetheretherketone, polyimide, polytetrafluoroethylene, polyphenylene ether, reinforced polypropylene, reinforced nylon, reinforced polybutylene terephthalate, and reinforced polyethylene terephthalate, preferably any one of reinforced polypropylene, reinforced nylon, reinforced polybutylene terephthalate, reinforced polyethylene terephthalate, polyimide, and polytetrafluoroethylene. More preferably, the thermal conductivity of the mold table 5 is 0.1 - 0.5 Wm -1 K -1 , preferably 0.1 - 0.3 Wm -1 K -1 .

[0059] On the one hand, the material of the mold table 5 is selected from the aforementioned high molecular materials with poor thermal conductivity to avoid scalding the operator due to too high temperature when removing the residual mucosal material. On the other hand, since the heating temperature generally does not exceed 150 °C during the cleaning process of the residual mucosal material, the material of the mold table 5 is selected from the aforementioned high molecular materials with a heat distortion temperature higher than 150 degrees, which can prevent the mold table 5 from undergoing thermal deformation and thus causing the entire device for cleaning the residual sticking mold material to be unusable.

[0060] In a more preferred embodiment of the present invention, the outer surface of the mold table 5 is provided with a heat insulation layer, and the material of the heat insulation layer can be selected from any one of fiberglass, asbestos, rock wool, silicate, aerogel felt, and vacuum board to further prevent scalding the operator due to too high temperature when removing the residual mucosal material.

[0061] The device for cleaning the remaining material sticking to the mold further includes an elastic member. A connecting rod is provided on the upper side surface of the support rod 1. One end of the elastic member is connected to the support rod 1 through the connecting rod, and the other end of the elastic member is connected to the scraping blade 2. As mentioned above, a heat insulation outer shell is provided outside the heating table 3. Under the action of the heat insulation outer shell, only a small amount of heat of the heating table 3 is transferred to the support rod 1. The temperature of the support rod 1 is not very high and is within the safe range. The temperatures of the elastic member and the scraping blade 2 connected thereto are also within the safe range, further reducing the risk of scalding. Specifically, in this embodiment, the elastic member is a spring 4.

[0062] In a preferred embodiment of the present invention, the elastic member is made of a plastic material, preferably made of polyamide or polycarbonate. On the one hand, the plastic material is lighter in weight than the metal material, is convenient to use, and has a lower cost; on the other hand, the thermal conductivity of this material is relatively poor, which can further prevent the heat of the support rod 1 from being transferred to the scraping blade 2 through the elastic member, further reducing the risk of scalding.

[0063] The scraping blade 2 is used to remove the remaining material sticking to the mold, and its shape is sheet-like. Figure 1 In, the scraping blade 2 has a trapezoidal sheet-like structure, but this does not limit the shape of the scraping blade 2. It can also be other shapes such as a square sheet-like structure, a wedge-shaped sheet-like structure, a triangular sheet-like structure, etc. Preferably, the thickness of the scraping blade 2 is 1-5 mm, preferably 1.5-3 mm, which is more conducive to cleaning the remaining material sticking to the mold.

[0064] Preferably, the material of the scraping blade 2 is a high molecular material with a heat distortion temperature higher than 150 degrees, including but not limited to any one of polyoxymethylene, nylon, polysulfone, polyethersulfone, polyphenylene sulfide, polyether ether ketone, polyimide, polytetrafluoroethylene, polyphenylene ether, reinforced polypropylene, reinforced nylon, reinforced polybutylene terephthalate, reinforced polyethylene terephthalate, preferably reinforced polypropylene, reinforced nylon, reinforced polybutylene terephthalate, reinforced polyethylene terephthalate, polyimide, polytetrafluoroethylene. More preferably, the thermal conductivity of the scraping blade 2 is 0.1-0.5 Wm -1 K -1 Preferably, it is 0.1-0.3 Wm -1 K -1 ; The Shore D hardness of the scraping blade 2 is 50-90, preferably 70-90.

[0065] First, during the cleaning process of the mucosal residue, the heating temperature generally does not exceed 150°C. Therefore, the material of the scraping blade 2 is selected from the aforementioned polymer materials with a heat distortion temperature higher than 150 degrees, which can prevent the scraping blade 2 from undergoing heat distortion and thus causing the inability to clean the mucosal residue on the mold. Second, the cleaning of the mucosal residue is carried out when the mold temperature is relatively high and the mucosal residue is softened. At this time, the scraping blade 2 is in direct contact with the mold. The material of the scraping blade 2 is selected from the aforementioned polymer materials with poor thermal conductivity to avoid the heat being transferred from the mold to the scraping blade 2 and scalding the operator when cleaning the mucosal residue. Third, the material of the scraping blade 2 is selected from the aforementioned polymer materials with relatively low hardness, which can avoid damaging the surface of the mold.

[0066] Under the action of the heating table 3, the temperature of the mold in the mold table 5 rises, and the temperature of the mucosal residue adhered to its surface gradually rises. When the mucosal residue on the mold softens, the operator can use the scraping blade 2 to clean the mucosal residue on the surface of the mold. Firstly, the low thermal conductivity of the scraping blade 2 makes it impossible for the heat to be conducted to the scraping blade 2 although the mold has a relatively high temperature. Secondly, the low thermal conductivity of the mold table 5 and the heat insulation layer on its outer surface make it impossible for the heat to be conducted to the mold table 5 although the mold has a relatively high temperature. Thirdly, the heating table 3 is provided with a heat insulation shell outside, and it cannot transfer heat to the support rod 1 and the spring 4. Fourthly, the low thermal conductivity of the elastic member makes it impossible for the heat of the heating table 3 to be further transferred to the scraping blade 2 through the spring 4. Therefore, there is no risk of scalding during the cleaning of the mucosal residue on the mold, ensuring the safety of cleaning the mucosal residue on the mold.

[0067] When there is mucosal residue on only one side of the mold, the process of cleaning the mucosal residue on the surface of the mold using the mucosal residue cleaning device of the present invention is as follows:

[0068] (1) Place a polytetrafluoroethylene film on the upper surface of the heating table 3 to prevent some of the mucosal residue from melting during the heating of the mold and falling onto the heating table 3 through the gap between the mold and the mold table 5.

[0069] (2) Place the mold with mucosal residue on its surface into the mold table 5, with the side with mucosal residue facing up; screw the four fixing screws 7 into the threaded holes on the four sides of the mold table 5 and abut against the four sides of the mold to fix the mold. It should be noted that the bottom surface of the mold is in direct contact with the polytetrafluoroethylene film.

[0070] (3) Turn on the heating table 3, set an appropriate temperature, and heat for a period of time. The heat generated by the heating table 3 is transferred to the mold. As the temperature of the mold rises, the mucosal residue gradually softens, and at this time, the heating table 3 can be turned off. It should be noted that generally, the temperature of the heating table 3 is set according to the type of mucosal residue and needs to be higher than the melting point of the mucosal residue.

[0071] (4) Use a scraper 2 to clean the remaining sticky material on the surface of the mold. It should be noted that when removing the remaining sticky material, the softened sticky material will adhere to the scraper 2. At this time, wipe it off with a rag, and then clean the remaining sticky material at other positions of the mold.

[0072] (5) After the mold cools to room temperature, take out the mold and the polytetrafluoroethylene film in sequence.

[0073] When there is remaining sticky material on both sides of the mold, the process of cleaning the remaining sticky material on the surface of the mold using the remaining sticky material cleaning device of the present invention is as follows:

[0074] (1) Place a polytetrafluoroethylene film on the upper surface of the heating table 3. On the one hand, it prevents some of the remaining sticky material from melting during the heating process of the mold and falling onto the heating table 3 through the gap between the mold and the mold table 5; on the other hand, it prevents the remaining sticky material on the lower surface of the mold from melting during the heating process of the mold and then adhering to the surface of the heating table 3.

[0075] (2) Place the mold with the remaining sticky material on its surface into the mold table 5, screw the four fixing screws 7 into the threaded holes on the four sides of the mold table 5, and make them abut against the four sides of the mold to fix the mold.

[0076] (3) Turn on the heating table 3, set an appropriate temperature, and heat for a period of time. The heat generated by the heating table 3 is transmitted to the mold. As the temperature of the mold rises, the remaining sticky material gradually softens. At this time, the heating table 3 can be turned off.

[0077] (4) Use a scraper 2 to clean the remaining sticky material on the surface of the mold.

[0078] (5) After the mold cools to room temperature, take out the mold and the polytetrafluoroethylene film in sequence.

[0079] (6) Place a polytetrafluoroethylene film on the upper surface of the heating table 3.

[0080] (7) Place the mold that has been cleaned on one side into the mold table 5 with the side having the remaining sticky material facing up; screw the four fixing screws 7 into the threaded holes on the four sides of the mold table 5, and make them abut against the four sides of the mold to fix the mold.

[0081] (8) Turn on the heating table 3, set an appropriate temperature, and heat for a period of time. The heat generated by the heating table 3 is transmitted to the mold. As the temperature of the mold rises, the remaining sticky material gradually softens. At this time, the heating table 3 can be turned off.

[0082] (9) Use a scraper 2 to clean the remaining sticky material on the surface of the mold.

[0083] (10) After the mold cools to room temperature, take out the mold and the polytetrafluoroethylene film in sequence.

[0084] In a preferred embodiment of the present invention, a movable plate 6 is provided between the heating table 3 and the mold table 5. The movable plate 6 is movably connected to the heating table 3 and is also movably connected to the mold table 5. Specifically in this embodiment, four corners of the mold table 5 are padded with four pads, and the movable plate 6 is inserted between the mold table 5 and the heating table 3. The movable plate 6 is slidably connected to the heating table 3 and is also slidably connected to the mold table 5. Therefore, the movable plate 6 can be located between the heating table 3 and the mold table 5, and the movable plate 6 can also be pulled out.

[0085] It should be noted that when the movable plate 6 is located between the heating table 3 and the mold table 5, the upper surface of the movable plate 6 is in direct contact with the mold table 5, and the lower surface of the movable plate 6 is in direct contact with the heating table. In addition, the sliding connection between the movable plate 6 and the heating table 3 and the mold table 5 can be a common sliding connection, and the present invention is not limited to this.

[0086] The first function of the movable plate 6 is heat conduction, which transfers the heat provided by the heating table 3 to the mold placed in the mold table 5, so that the mucosal residue on the surface of the mold is softened by heat. The second function of the movable plate 6 is to prevent the softened mucosal residue from contaminating the heating table 3. Specifically, there are gaps between the mold table 5 and the four sides of the mold. In the process of cleaning the mucosal residue, it is inevitable that debris will fall through the gaps. The movable plate 6 is arranged between the mold table 5 and the heating table 3 to prevent the debris from falling on the heating table 3 and contaminating the heating table 3. The third function of the movable plate 6 is to collect the debris generated during the cleaning process of the mucosal residue. After the mold cools down, the movable plate 6 can be directly pulled out to wipe off the debris falling from its surface.

[0087] The movable plate 6 is made of metal, preferably aluminum or stainless steel, more preferably stainless steel, which is further conducive to transferring the heat provided by the heating table 3 to the mold placed in the mold table 5, so that the mucosal residue on the surface of the mold is softened by heat. The thickness of the movable plate 6 is 0.1-2 mm, preferably 0.5-1 mm.

[0088] When there is residual mucous film on only one side of the mold, the process of using the residual mucous film cleaning device of the present invention to clean the residual mucous film on the mold surface is as follows:

[0089] (1) Place the mold with the residual mucosa adhered to the surface on the mold table 5, with the side with the residual mucosa adhered to the surface facing upward; screw four fixing screws 7 into the threaded holes on the four sides of the mold table 5 and abut against the four sides of the mold to fix the mold. It should be noted that the bottom surface of the mold is in direct contact with the top surface of the movable plate 6.

[0090] (2) Turn on the heating table 3, set an appropriate temperature, heat for a period of time, and the heat generated by the heating table 3 is transmitted to the mold through the movable plate 6. As the temperature of the mold rises, the remaining sticky material gradually softens. At this time, the heating table 3 can be turned off.

[0091] (3) Use the scraper 2 to clean the remaining sticky material on the surface of the mold.

[0092] (4) After the mold cools down to room temperature, take out the mold, pull out the movable plate 6, wipe off the debris on the surface of the movable plate 6 and then put it back in place.

[0093] It should be noted that when the movable plate 6 is not provided, in order to prevent the heating table from being contaminated by debris, a polytetrafluoroethylene film needs to be placed on it. However, the heat transfer effect of the polytetrafluoroethylene film is a bit worse than that of the movable plate 6. Therefore, the heating time will be prolonged, the power consumption will increase, and the entire cleaning time will also be prolonged. After the movable plate 6 is provided between the mold table 5 and the heating table 3, it can not only shorten the heating time but also avoid the heating table 3 being contaminated by debris.

[0094] When there is remaining sticky material on both sides of the mold, the process of cleaning the remaining sticky material on the surface of the mold by using the cleaning device for remaining sticky material of the present invention is as follows:

[0095] (1) Place a polytetrafluoroethylene film on the upper surface of the movable plate 6 to prevent the remaining sticky material on the lower surface of the mold from melting during the heating process of the mold, thereby bonding the mold and the movable plate 6 together.

[0096] (2) Put the mold with remaining sticky material on its surface into the mold table 5, screw the four fixing screws 7 into the threaded holes on the four sides of the mold table 5 and make them abut against the four sides of the mold to fix the mold.

[0097] (3) Turn on the heating table 3, set an appropriate temperature, heat for a period of time, and the heat generated by the heating table 3 is transmitted to the mold through the movable plate 6. As the temperature of the mold rises, the remaining sticky material gradually softens. At this time, the heating table 3 can be turned off.

[0098] (4) Use the scraper 2 to clean the remaining sticky material on the surface of the mold.

[0099] (5) After the mold cools down to room temperature, take out the mold, pull out the movable plate 6, remove the polytetrafluoroethylene film on its upper surface, and put the movable plate 6 back in place.

[0100] (6) Put the mold with one side already cleaned into the mold table 5, with the side having remaining sticky material on the surface facing up; screw the four fixing screws 7 into the threaded holes on the four sides of the mold table 5 and make them abut against the four sides of the mold to fix the mold.

[0101] (7) Turn on the heating table 3, set an appropriate temperature, heat for a period of time, and the heat generated by the heating table 3 is transmitted to the mold through the movable plate 6. As the temperature of the mold rises, the remaining adhered material gradually softens. At this time, the heating table 3 can be turned off.

[0102] (8) Use the scraping blade 2 to clean the remaining adhered material on the surface of the mold.

[0103] (9) After the mold cools down to room temperature, take out the mold, pull out the movable plate 6, wipe off the debris on the surface of the movable plate 6 and then put it back in place.

[0104] Example 1

[0105] A device for cleaning the remaining adhered material, the material of the scraping blade 2 is selected as reinforced nylon, the material of the mold table 5 is selected as reinforced polybutylene terephthalate, and it is coated with an asbestos heat insulation layer on its periphery. The top and bottom surfaces of the mold table 5 are both square in shape, with a height of 10 mm. The material of the movable plate 6 is selected as 304 stainless steel, with a thickness of 0.5 mm. The heating table 3 is heated by an electric heating plate.

[0106] Place the mold with polyethylene remaining adhered on its surface into the mold table 5, with the side having the remaining material facing upwards, and tighten the screws on the four sides of the mold table 5 to fix the mold. Then turn on the heating table 3, set the heating temperature to 100 °C, after heating for 5 minutes, the polyethylene remaining material softens, and turn off the heating table 3. Use the scraping blade 2 to clean the polyethylene remaining material on the surface of the mold. After the mold cools down to room temperature, take it out, pull out the movable plate 6, wipe off the debris on its surface and then put it back in place.

[0107] Example 2

[0108] A device for cleaning the remaining adhered material, the material of the scraping blade 2 is selected as reinforced polypropylene, the material of the mold table 5 is selected as polytetrafluoroethylene, and it is coated with an aerogel felt heat insulation layer on its periphery. The top and bottom surfaces of the mold table 5 are both square in shape, with a height of 20 mm. The material of the movable plate 6 is selected as 304 stainless steel, with a thickness of 1 mm. The heating table 3 is heated by an electric heating plate.

[0109] Place the mold with polypropylene remaining adhered on its surface into the mold table 5, with the side having the remaining material facing upwards, and tighten the screws on the four sides of the mold table 5 to fix the mold. Then turn on the heating table 3, set the heating temperature to 120 °C, after heating for 5 minutes, the polypropylene remaining material softens, and turn off the heating table 3. Use the scraping blade 2 to clean the polypropylene remaining material on the surface of the mold. After the mold cools down to room temperature, take it out, pull out the movable plate 6, wipe off the debris on its surface and then put it back in place.

[0110] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0111] In the description of the present invention, unless otherwise specified, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0112] The above technical solutions are only one implementation manner of the present invention. For those skilled in the art, based on the disclosed principles of the present invention, various types of improvements or deformations can be easily made, not limited to the technical solutions described in the above specific embodiments of the present invention. Therefore, the foregoing description is only preferred and does not have a limiting meaning.

Claims

1. A device for cleaning the remaining material of sticking to the mold, characterized in that, Comprising: A heating table; A support rod, the bottom end of which is connected to the side surface of the heating table: A mold table, arranged above the heating table; the mold table is of a frame structure, and the bottom surface of the side surface of the mold table is connected to the top surface of the heating table; A scraper, connected to the upper end of the support rod.

2. The device according to claim 1, wherein The device for cleaning the remaining sticky mold material further comprises at least two mold fixing members, one end of the mold fixing member is connected to the mold table, and the other end of the mold fixing member abuts against the side surface of the mold.

3. The device according to claim 1, wherein A cushion block is arranged between the mold table and the heating table, the number of the cushion blocks is multiple, and multiple cushion blocks are all arranged on the bottom surface of the side surface of the mold table; a movable plate is arranged between the heating table and the mold table; the movable plate is movably connected to the heating table, and the movable plate is movably connected to the mold table.

4. The device according to claim 1, wherein An elastic member is arranged between the support rod and the scraper.

5. The device according to claim 1, wherein The outer surface of the mold table is provided with a heat insulation layer, and the material of the heat insulation layer is any one of fiberglass, asbestos, rock wool, silicate, aerogel felt, and vacuum plate.

6. The device according to claim 1, wherein A heat insulation outer shell is arranged outside the heating table, and the top surface of the heat insulation outer shell is open; the bottom end of the support rod is connected to the side surface of the heat insulation outer shell.

7. The device according to claim 1, wherein The heating table is any one of an electric heating plate, a gas lamp, and an electric furnace.

8. The device according to claim 3, wherein The heat distortion temperature of the blade is higher than 150 °C, and the thermal conductivity of the blade is 0.1 to 0.5 Wm -1 K -1 ; the Shore D hardness of the blade is 50 to 90; and / or The heat distortion temperature of the mold table is higher than 150 °C, and the thermal conductivity of the mold table is 0.1 - 0.5 Wm -1 K -1 ; Preferably, The material of the scraper is any one of polyoxymethylene, nylon, polysulfone, polyethersulfone, polyphenylene sulfide, polyetheretherketone, polyimide, polytetrafluoroethylene, polyphenylene ether, reinforced polypropylene, reinforced nylon, reinforced polybutylene terephthalate, and reinforced polyethylene terephthalate; and / or The material of the mold table is any one of polyoxymethylene, nylon, polysulfone, polyethersulfone, polyphenylene sulfide, polyetheretherketone, polyimide, polytetrafluoroethylene, polyphenylene ether, reinforced polypropylene, reinforced nylon, reinforced polybutylene terephthalate, and reinforced polyethylene terephthalate; and / or The material of the movable plate is metal.

9. A method for cleaning mucosal residues, characterized in that, Comprising the following steps: (1) Place a thin film on the upper surface of the heating table; place the mold in the mold table and fix it with the mold fixing member; wherein, the side with the remaining sticky mold material faces upward; (2) Turn on the heating table, the remaining sticky mold material softens, turn off the heating table and clean the remaining sticky mold material; (3) After the mold cools down, take out the mold and the thin film in sequence; Preferably, the following steps are further included (4) Place a thin film on the upper surface of the heating table; place the mold in the mold table and fix it with the mold fixing member; wherein, the side that is upward in step (1) faces downward; (5) Turn on the heating table, the remaining sticky mold material softens, turn off the heating table and clean the remaining sticky mold material; (6) After the mold cools down, take out the mold and the thin film in sequence.

10. A method for cleaning mucosal leftovers, characterized in that, Comprising the following steps: (1) Place the mold in the mold table and fix it with the mold fixing member; wherein, the side with the remaining sticky mold material faces upward; (2) Turn on the heating table to soften the remaining sticky material on the mold, then turn off the heating table and clean the remaining sticky material. (3) After the mold cools down, take out the mold, pull out the movable plate, clean the debris and then put it back in place. Or (1) Place a thin film on the upper surface of the movable plate; put the mold into the mold table and fix it with a mold fixing piece. (2) Turn on the heating table to soften the remaining sticky material on the mold, then turn off the heating table and clean the remaining sticky material. (3) After the mold cools down, take out the mold, pull out the movable plate, remove the thin film and then put it back in place. (4) Put the mold into the mold table and fix it with a mold fixing piece; among them, the side facing up in step (1) faces down. (5) Turn on the heating table to soften the remaining sticky material on the mold, then turn off the heating table and clean the remaining sticky material. (6) After the mold cools down, take out the mold, pull out the movable plate, clean the debris and then put it back in place.

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