A device for processing precision plastic parts made of recycled materials

Abstract

The present invention belongs to the technical field of 3D printing of recycled plastics, and specifically relates to a device for processing precision plastic parts made of recycled materials, comprising a chassis, a loading platform, and consumable parts. The chassis is provided with a print head, a three-dimensional displacement system for moving the print head, and an air intake mechanism staggered with the print head. The loading platform is connected to the three-dimensional displacement system. An air storage tank connected to the air intake mechanism is provided inside the loading platform, and micropores connected to the air storage tank are provided on its surface. A plug, a lining member connected to the plug, and a pulling member are provided inside the micropore. An annular adsorbent colloid and an air outlet connected to the air storage tank are provided at intervals at one end of the plug passing through the micropore. A magnetic material for attracting the lining member is embedded inside the consumable parts. The present invention removes toxic gases while dissipating heat for the printed parts, and the adsorbent colloid absorbs harmful gases and expands to further seal, thereby stably restricting the airflow and clearing the printing point.

Description

Technical Field

[0001] The present invention belongs to the technical field of 3D printing of recycled plastics, and in particular relates to a device for processing precision plastic parts made of recycled materials. Background Art

[0002] Recycled plastics, also known as recycled plastics, are made by converting used or discarded plastic products into usable plastic raw materials. There is a significant demand for recycled plastics. These include PE (polyethylene), PP (polypropylene), PVC (polyvinyl chloride), PS (polystyrene), and ABS (acrylonitrile-butadiene-styrene copolymer). ABS plastic products are widely used due to their impact resistance, heat and low-temperature resistance, excellent chemical resistance, and high surface gloss.

[0003] In the production of precision plastic parts, recycled plastics have won the favor of many manufacturers due to their strong properties, especially through 3D printing additive manufacturing technology, which does not require the production of blanks or intermediates, eliminating many process steps. However, in this additive manufacturing process, there are still areas that need improvement:

[0004] 1. 3D printing recycled plastics will produce toxic gases during the melting process, which will be inhaled by the human body and cause great harm to the respiratory organs.

[0005] 2. Using a fan to blow air to remove toxic gases is inconvenient to limit the airflow to move away from the printing point, which may cause the airflow to blow away and cause local deviations in the print. Summary of the Invention

[0006] The purpose of the present invention is to provide a device for processing precision plastic parts made of recycled materials, which can remove toxic gases while dissipating heat for printed parts, and the adsorbent colloid can absorb harmful gases and expand to further seal them, thereby stably restricting airflow to keep away from printing points.

[0007] The technical solutions adopted by the present invention are as follows:

[0008] A device for processing recycled precision plastic parts, comprising:

[0009] A chassis, wherein a print head, a three-dimensional displacement system for moving the print head, and an air intake mechanism staggered with the print head are disposed inside the chassis;

[0010] A loading platform, the loading platform being connected to the three-dimensional displacement system, the loading platform being provided with an air storage tank connected to the air intake mechanism, and having micropores on its surface connected to the air storage tank, a plug being provided inside the micropore, and a lining member and a pulling member connected to the plug, an annular adsorbent colloid and an air outlet connected to the air storage tank being provided at intervals at one end of the plug passing through the micropore;

[0011] A consumable part, which is used to be laid on the loading platform to cushion the bottom of the printed part, and the consumable part is embedded with a magnetic material for attracting the liner member;

[0012] During printing, the consumable part presses down part of the plug to close the micropores and the air outlet to limit the airflow from avoiding the printing point and dissipate heat for the printed part, and clean up the toxic gas, so that the other part of the plug can position the consumable part.

[0013] As an optional solution, the outside of the plug is bonded with a fluororubber ring for coating the adsorbent colloid and a positive flange bonded to the outside of the fluororubber ring. The fluororubber ring is provided with air holes for the adsorbent colloid to contact toxic gases. The outer edge of the micropore is fixed with a reverse flange that matches the positive flange. The positive flange and the reverse flange are used to block slag when they are engaged.

[0014] As an optional solution, the lining kit includes an inner magnet fixed in sequence inside the air storage tank along the axial direction of the micropore, a clamping member for supporting the inner magnet, a first elastic member bonded to the outer side of the clamping member, and an alloy skeleton. The end of the plug away from the loading platform is embedded with an outer magnet for attracting the inner magnet and the magnetic material, and the other end is fixed with an inward-bent pin that fits with the clamping member.

[0015] As an optional solution, the pulling member includes a second elastic member bonded to one end of the inner bent pin close to the alloy frame, and the four corners of the alloy frame are embedded with limiting columns fixedly connected to the inner wall of the gas storage tank.

[0016] As an optional solution, a seat bracket that is transmission-connected to the three-dimensional displacement system and two hollow frames distributed at both ends of the seat bracket are fixed to the side of the loading platform away from the plug.

[0017] As an optional solution, the air intake mechanism includes an air intake pipe, a connecting pipe and a one-way valve which are sequentially connected to the air storage tank, and the one-way valve is used to limit the air flow to flow into the interior of the chassis.

[0018] As an optional solution, the air inlet of the one-way valve is connected to an air tank and an air pump in sequence, and the one-way valve is pushed open when the internal pressure of the air tank reaches a set value.

[0019] As an optional solution, a silo and a guide wheel tube are fixed on the back of the chassis, and a winding roller for winding the recycled material is rotatably installed in the middle of the silo.

[0020] As an optional solution, a cooling fan and a slide rail connected to the three-dimensional displacement system are installed at intervals on the print head;

[0021] Wherein, the blowing direction of the cooling fan is staggered from the loading platform.

[0022] As an optional solution, an air collecting hood facing the loading platform and a bellows connected to the air collecting hood are fixed on the top of the chassis, and an exhaust fan for attracting air flow inside the chassis is fixed to the air inlet of the air collecting hood.

[0023] The technical effects achieved by the present invention are:

[0024] The present invention processes recycled materials through 3D printing technology, uses disposable consumables as a base to pad the printed part, and at the same time presses the micropores underneath, so that the air outlet on the other part of the plug blows air toward the inside and outside of the printed part, taking away the toxic gas while dissipating heat for the printed part. The adsorbent colloid can absorb harmful gases and expand, further sealing the micropores to prevent air leakage from blowing toward the printing point, thereby stably limiting the airflow to keep the printing point away. This action can follow the rise and fall of the loading platform without interference, thereby promoting a smooth printing process. The staff can wait for the printing to be completed in a safe position, and the consumables can be smashed to demold after printing is completed.

[0025] Once the plug is inserted into the micropore, the present invention drives the reverse flange and the air outlet to sink into the micropore, so that the reverse flange passes over the positive flange and then rebounds, and then engages with the positive flange to limit the plug. The plug can be limited and will not be pushed out of the micropore when exposed to wind. During this process, the air pores are continuously open, which is convenient for the adsorbent colloid to absorb harmful gases and expand. At the same time, the reverse flange is pushed to stick to the wall in the micropore, and the closure is tighter. While preventing air leakage, it can also block the slag dropped from the printed part, thereby realizing the function of preventing slag blockage.

[0026] The present invention inserts the plug into the holder by attracting the external magnet in the micropore with the internal magnet. The holder supports the internal magnet while engaging with the holder through its upward and downward bends, thereby firmly inserting the plug into the micropore. Simultaneously, the magnetic material in the consumable part is firmly attracted to position the consumable part vertically, and the remaining plug is used to position the consumable part horizontally, thereby facilitating its stable operation. After printing is completed, the consumable part is lifted, and the magnetic attraction pulls the plug upward, automatically disengaging it from the micropore. The printed part is then broken up, and the magnetic material can be removed and recovered.

[0027] The present invention changes the way the micropores send airflow toward the interior of the chassis, allowing the airflow to be drawn into the micropores, carrying away harmful gases. All micropores maintain unobstructed airflow, generating a certain suction force to hold the consumables. The adsorbent colloid, fluororubber ring, positive flange, and reverse flange on the plug are also removed, and the plug is pressed into the micropore. This saves the steps of disassembling and assembling the adsorbent colloid and simplifies the printing process. The magnetic attraction between the magnetic material, the inner magnet, and the outer magnet vertically positions the consumables. Furthermore, the remaining part of the plug can be used to horizontally position the consumables, similarly enabling the consumables to stably carry the printed parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front view of a device for processing precision plastic parts made of recycled materials in a first embodiment of the present invention;

[0029] Figure 2 This is a rear view of a device for processing precision plastic parts made of recycled materials in the first embodiment of the present invention;

[0030] Figure 3 This is a cross-sectional view of a device for processing precision plastic parts made of recycled materials in a first embodiment of the present invention;

[0031] Figure 4 This is a schematic structural diagram of a three-dimensional displacement system equipped with an air intake mechanism in a first embodiment of the present invention;

[0032] Figure 5 This is a schematic structural diagram of the idle state of the three-dimensional displacement system in the first embodiment of the present invention;

[0033] Figure 6 This is a front view of the loading platform in Example 1 of the present invention;

[0034] Figure 7 is a cross-sectional view of the loading platform in Example 1 of the present invention;

[0035] Figure 8 is a top view of the alloy skeleton in Example 1 of the present invention;

[0036] Figure 9 This is a schematic structural diagram of the plug and the clamping member being tightly inserted in the first embodiment of the present invention;

[0037] Figure 10 is a cross-sectional view of the plug and the clamping member in the first embodiment of the present invention;

[0038] Figure 11 This is a front view of one of the recycled precision plastic parts in Example 1 of the present invention.

[0039] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0040] 1. Print head; 2. Loading platform; 201. Micropore; 202. Plug; 203. Adsorbent colloid; 204. Air outlet; 205. Air storage tank; 3. Consumable parts; 4. Fluororubber ring; 401. Air vent; 402. Positive flange; 403. Reverse flange; 501. External magnet; 502. Internal magnet; 601. Inward bend pin; 602. Clamping part; 603. First elastic part; 604. Alloy skeleton; 605. Second elastic part; 606. Limiting column; 7. Support; 8. Hollow frame; 9. Inlet pipe; 10. Connecting pipe; 11. One-way valve; 12. Air pump; 13. Air storage tank; 14. Material silo; 15. Winding roller; 16. Guide wheel tube; 17. Cooling fan; 18. Slide rail; 19. Air hood; 20. Exhaust fan; 21. Bellows. DETAILED DESCRIPTION

[0041] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following examples. It should be understood that the following text is only used to describe one or more specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0042] Recycled plastic, also known as recycled plastic, is not a specific type of plastic material. Rather, it refers to a specific recycling process that transforms used or discarded plastic products into usable plastic raw materials. During this process, discarded plastic products such as plastic bags, bottles, and containers are collected and, after cleaning, melting, and granulation, are ultimately made into recycled plastic pellets and plastic yarn, collectively known as recycled material. This recycled material can then be processed into various plastic products, thus achieving plastic recycling. For example, 3D printers can be used to produce precision plastic parts, leveraging the recycled material's high hardness.

[0043] Example 1:

[0044] like Figures 1-11 As shown, a device for processing precision plastic parts made of recycled materials includes a chassis, a loading platform 2, and consumables 3. The consumables 3 of a preset shape are used to be laid on the loading platform 2 to pad the bottom of the printed part. A print head 1, a three-dimensional displacement system for moving the print head 1, and an air intake mechanism staggered with the print head 1 are provided inside the chassis. The recycled material is first made into a linear roll for standby use, and one end is introduced into the print head 1. The print head 1 is moved on the X-axis and Z-axis through the three-dimensional displacement system, and the loading platform 2 is raised and lowered on the Y-axis. The upper surface of the consumable 3 is used as a reference plane to spray the recycled material, and the laser beam is used to melt and form it quickly. During this process, the air intake mechanism is started to blow air, and the consumable 3 limits the airflow blown to the loading platform 2, so that the airflow moves away from the printing point, thereby blowing toxic gases inside and outside the printed part.

[0045] As an optional embodiment, consumable part 3 is made of gypsum and rapidly molded using a reverse molding method. The upper and lower surfaces are then flattened to provide a flat surface for supporting the printed part and withstand the high temperatures encountered during printing. After printing, consumable part 3 can be broken to quickly remove the printed part from the mold. This consumes only gypsum, resulting in a relatively low cost.

[0046] In the three-dimensional displacement system, the X-axis and the Z-axis can use electric wheels to drive belts to realize the movement of the print head 1, and the Y-axis can use a motor to rotate the screw to drive the loading platform 2 up and down, so that the print head 1 and the loading platform 2 are isolated and do not interfere with each other.

[0047] Refer to the attached Figure 6 、 Figure 7 and Figure 9 When the loading platform 2 is connected to the three-dimensional displacement system, the loading platform 2 is moved to the initial position to prepare for loading. In this embodiment, an air storage tank 205 connected to the air inlet mechanism is opened inside the loading platform 2, and a micropore 201 connected to the air storage tank 205 is opened on its surface for circulating air. The plug 202 inserted into the micropore 201 is pressed down by the consumable part 3 to block the micropore 201 directly below the printed part. At one end of the plug 202 passing through the micropore 201, a ring-shaped adsorbent colloid 203 and an air outlet 204 connected to the air storage tank 205 are arranged at intervals. Part of the plug 20 2 drives the adsorbent colloid 203 and the air outlet 204 into the micropores 201, and the remaining adsorbent colloid 203 and the air outlet 204 are exposed. In this way, when the air intake mechanism is started to blow air during the printing process, the air flow enters the air storage tank 205 and is distributed to the opened micropores 201, so that the remaining air outlet 204 blows the air flow, vertically dissipating the air flow to the inside and outside of the printed part, taking away the toxic gas while dissipating heat for the printed part. In addition, the adsorbent colloid 203 can absorb the harmful gas and expand, further closing the micropores 201, preventing air leakage from blowing to the printing point, and stably limiting the air flow to keep away from the printing point.

[0048] As an optional embodiment, the adsorbent colloid 203 may be made of DMSO (dimethyl sulfoxide), which can absorb components such as acrylonitrile, styrene, butadiene, etc. in harmful gases and expand to a certain extent.

[0049] Refer to the attached Figure 4 and Figure 5 Since the loading platform 2 is hollowed out by the gas storage tank 205, it needs to be reinforced. Therefore, in this embodiment, a seat bracket 7 that is transmission-connected to the three-dimensional displacement system and two hollow frames 8 distributed at both ends of the seat bracket 7 are fixed by screws on the side of the loading platform 2 away from the plug 202. The seat bracket 7 and the hollow frames 8 are used to improve the structural strength of the loading platform 2 and strengthen the connection with the three-dimensional displacement system, making it convenient to carry heavier printed parts.

[0050] Refer to the attached Figure 7 、 Figure 9 and Figure 10 During the pressing process, the adsorbent colloid 203 is soft and easily scraped off, and needs to be reinforced. Therefore, a fluororubber ring 4 for coating the adsorbent colloid 203 and a positive flange 402 bonded to the outside of the fluororubber ring 4 are provided on the outside of the plug 202. At this node, the fluororubber ring 4 does not react with the adsorbent colloid 203 and can limit the position well. A vent hole 401 is provided on the fluororubber ring 4 for the adsorbent colloid 203 to contact the toxic gas, which is convenient for absorbing the toxic gas. The outer edge of the micropore 201 is welded with a flange 402 that matches the positive flange 402. Once the plug 202 is inserted into the micropore 201, the reverse flange 403 and the air outlet 204 are driven to sink into the micropore 201, so that the reverse flange 403 passes over the positive flange 402 and then rebounds, and then engages with the positive flange 402 to limit the plug 202. The plug 202 can be limited and will not be pushed out of the micropore 201 when exposed to wind. During this process, the air pore 401 is continuously open, which is convenient for the adsorbent colloid 203 to absorb harmful gases and expand. At the same time, the reverse flange 403 is pushed to stick to the wall in the micropore 201, and the seal is tighter, which is conducive to preventing air leakage.

[0051] When the recycled material is melted, it has a certain fluidity and may partially drip to produce slag. This embodiment blocks the slag when the positive flange 402 and the reverse flange 403 are engaged, thereby achieving the function of preventing slag blockage, blocking the slag outside the air path, and facilitating the smooth flow of air.

[0052] Among them, the positive flange 402 can be made of fluorosilicone rubber, which has good heat resistance and can maintain its shape in the hot bed environment of 3D printing. It can also be deformed and smoothly pass over the reverse flange 403. The reverse flange 403 can be integrated on the loading platform 2 through milling. It has high structural strength and is not easy to be broken. In particular, the processed inclined surface is relatively smooth and will not block the positive flange 402 due to friction.

[0053] As the adsorbent colloid 203 is a consumable material that may require frequent replacement, the fluororubber ring 4 used here achieves an interference fit with the plug 202 through groove engagement. All fluororubber rings 4 are connected together using a loose, high-temperature-resistant wire mesh. The high-temperature-resistant wire mesh is pulled to peel off the adsorbent colloid 203. The adsorbent colloid 203 and fluororubber ring 4 can be installed using a fixture with multiple holes, pressing them onto the plug 202 for a complete one-time installation.

[0054] Refer to the attached Figure 9 and Figure 10The plug 202 needs some assistance to be inserted tightly, especially when the instantaneous pressure of the air flow is relatively high. In order to prevent the plug 202 from being pushed open, in this embodiment, an inner magnet 502, a clamping member 602 for supporting the inner magnet 502, a first elastic member 603 bonded to the outer side of the clamping member 602, and an alloy skeleton 604 are sequentially bonded inside the air storage tank 205 along the axial direction of the micropore 201. The alloy skeleton 604 radiating the entire lower wall of the air storage tank 205 supports multiple clamping members 60 2. In order to tighten the plug 202, an external magnet 501 for attracting the inner magnet 502 and the magnetic material is embedded in the end of the plug 202 away from the loading platform 2. The internal magnet 502 attracts the external magnet 501 in the microhole 201 to realize the insertion of the plug 202 into the clamping part 602. At the same time, an inner bent pin 601 that fits the clamping part 602 is welded on the other end of the plug 202 and engages with the clamping part 602 to realize the tight insertion of the plug 202 in the microhole 201.

[0055] Furthermore, before the consumable part 3 is formed by the mold, magnetic materials such as neodymium iron boron magnets, samarium cobalt magnets, aluminum nickel cobalt magnets, etc. can be placed inside the mold and made into a shape that adapts to the mold. The consumable part 3 can be placed on the loading platform 2 to attract the outer magnet 501 and the inner magnet 502 to achieve vertical positioning of the consumable part 3, and cooperate with the remaining part of the plug 202 to horizontally position the consumable part 3, so that the consumable part 3 can remain stable and prevent it from being pushed open by the airflow.

[0056] Furthermore, the two inward-bending pins 601 are symmetrically arranged, and there are two arc-shaped bends on the inward-bending pins 601, namely an upper bend and a lower bend. The two clamping parts 602 are arranged in an open shape, and the opening has an arc. When the plug 202 is in an exposed state, the lower bend engages with the opening, and when the plug 202 is in an inserted state, the lower bend descends along the middle of the two clamping parts 602, and the upper bend engages with the opening.

[0057] Refer to the attached Figure 8 、 Figure 9 and Figure 10 During the biting process, a larger biting force is required for the upper bend and the opening to achieve clamping. Therefore, in this embodiment, a second elastic member 605 is bonded to one end of the inner bend pin 601 close to the alloy frame 604. The second elastic member 605 is in a double ring shape and can continuously squeeze the opening to bite the upper bend or the lower bend. Limiting columns 606 welded to the inner wall of the air storage tank 205 are embedded in the four corners of the alloy frame 604 to reinforce the roots of the clamping member 602 and the second elastic member 605, and firmly limit the inner bend pin 601.

[0058] Refer to the attached Figure 2 and Figure 3, dust on the surface of the recycled material will reduce the quality of the printed part, so a silo 14 and a guide wheel tube 16 for winding the recycled material are fixed to the back of the chassis by screws, and the recycled material wire is sealed and stored in the silo 14, and a winding roller 15 for winding the recycled material is rotatably installed in the middle of the silo 14. When printing, one end of the recycled material wire is led out through the guide wheel tube 16 and sent to the print head 1 for printing, and the three-dimensional displacement system is controlled to lower the loading platform 2 along the Y axis for layered additive printing. The printed parts can be ring-shaped, cylindrical, special-shaped parts, etc., for example Figure 11 The gear parts in the printer are adapted to make the consumable part 3 into a ring shape, so that the air flow is distributed to both sides of the printed part and will not blow towards the printing point.

[0059] Refer to the attached Figure 4 and Figure 5 A cooling fan 17 and a slide rail 18 connected to the three-dimensional displacement system are installed on the print head 1 at intervals. After the cooling fan 17 is started, the blowing direction is staggered away from the loading platform 2 to dissipate heat for the print head 1. At the same time, under the drive of the three-dimensional displacement system along the X-axis, the print head 1 and the cooling fan 17 both move along the slide rail 18 to facilitate maintaining balance.

[0060] Refer to the attached Figure 1 and Figure 3 The chassis is sealed by an airtight door and can only be opened after the harmful gases are emptied. Therefore, the exhaust gas needs to be discharged independently. In this embodiment, an air collecting hood 19 facing the loading platform 2 and a bellows 21 connected to the air collecting hood 19 are fixed on the top of the chassis by screws. The exhaust gas is drained through the air collecting hood 19 and the bellows 21 and discharged into the exhaust gas treatment equipment. An exhaust fan 20 for attracting the air flow inside the chassis is fixed at the air inlet of the air collecting hood 19 by screws. The exhaust fan 20 is started to suck the exhaust gas to form a circulating airflow to ensure smooth exhaust of the chassis.

[0061] The air intake mechanism and the exhaust fan 20 simultaneously actuate the airflow to achieve rapid discharge of harmful gases, and prevent these airflows from generating vortices inside the chassis, so that the airflow flows in an orderly manner outside the printed part, achieving controllable emission of harmful gases and preventing disturbances to the printing points.

[0062] Refer to the attached Figure 2 and Figure 4 The discharge of harmful gases requires an airflow of a certain pressure. The air intake mechanism of this embodiment includes an air intake pipe 9, a connecting pipe 10 and a one-way valve 11 which are connected to the air storage tank 205 in sequence. The air inlet of the one-way valve 11 is connected to the air source. When the air source is opened, air is ventilated to the inside of the chassis. The one-way valve 11 is used to limit the airflow to the inside of the chassis. The air intake pipe 9 is set to four and distributed to the four sides of the air storage tank 205. The airflow is divided into four streams through the connecting pipe 10 and flows to all micropores 201 as much as possible, reducing the micropores 201 that do not emit air, and reducing the airflow pressure to prevent the plug 202 from being pushed open due to excessive pressure.

[0063] Refer to the attached Figure 2 and Figure 4 The air inlet of the one-way valve 11 is connected to the air tank 13 and the air pump 12 in sequence. When the air pump 12 is turned on, the clean air in the air-conditioning system can be sucked into the air tank 13 first. When the internal pressure of the air tank 13 reaches the set value, the one-way valve 11 is pushed open, which can ensure that the airflow has a sufficiently high pressure.

[0064] After printing is completed, the cooled print is removed, and the consumable part 3 is lifted. The plug 202 is pulled up by the magnetic attraction of the built-in magnetic material, and automatically separated from the micropore 201. Then the consumable part 3 is broken and the magnetic material can be taken out for recycling.

[0065] Alternatively, the staff can use a permanent magnet or an electromagnet to move horizontally on the loading platform 2 to attract the external magnet 501, and use the suction force to drive the plug 202 upward to protrude out of the microhole 201. At this time, the upper bend will break away from the clamping part 602 and be limited at the lower edge of the microhole 201, while the lower bend will re-engage with the clamping part 602 to prevent the plug 202 from breaking away.

[0066] The working principle of the present invention is as follows: when working, the consumable parts 3 of preset shape are used to lay on the loading platform 2 to pad the bottom of the printed part, the print head 1 is moved on the X-axis and Z-axis through the three-dimensional displacement system, and the loading platform 2 is raised and lowered on the Y-axis. The upper surface of the consumable parts 3 is used as the reference plane to start the ejection of recycled material, and the laser beam is used to melt and form it quickly. During this process, the air intake mechanism is started to blow airflow.

[0067] At the same time, the consumable part 3 presses down part of the plug 202 to drive the adsorbent colloid 203 and the air outlet 204 into the micropore 201, and the remaining adsorbent colloid 203 and the air outlet 204 are exposed to the outside. When the air is taken in, the air flow enters the air storage tank 205 and is distributed to the opened micropore 201, so that the remaining air outlet 204 blows the air flow, and vertically distributes the air flow to the inside and outside of the print, taking away the toxic gas while dissipating heat for the print, and the adsorbent colloid 203 can absorb the harmful gas and expand, further closing the micropore 201, avoiding air leakage from blowing to the printing point, and achieving stable restriction of the air flow to keep the printing point away.

[0068] Once the plug 202 is inserted into the micropore 201, the reverse flange 403 and the air outlet 204 are driven to sink into the micropore 201, so that the reverse flange 403 passes over the positive flange 402 and then rebounds, and then engages with the positive flange 402 to limit the plug 202. The plug 202 can be limited and will not be pushed out of the micropore 201 when exposed to wind. During this process, the air pore 401 is continuously open, which is convenient for the adsorbent colloid 203 to absorb harmful gases and expand. At the same time, it pushes the reverse flange 403 to stick to the wall in the micropore 201, making the seal tighter, which is conducive to preventing air leakage.

[0069] In addition, the inner magnet 502 attracts the outer magnet 501 in the microhole 201, so that the plug 202 is inserted into the clamping piece 602. At the same time, the inner bent pin 601 welded on the other end of the plug 202 and fitting with the clamping piece 602 is engaged with the clamping piece 602, so that the plug 202 is tightly inserted into the microhole 201.

[0070] After printing is completed, the cooled print is removed, and the consumable part 3 is lifted. The plug 202 is pulled up by the magnetic attraction of the built-in magnetic material, and automatically separated from the micropore 201. Then the consumable part 3 is broken and the magnetic material can be taken out for recycling.

[0071] Alternatively, the staff can use a permanent magnet or an electromagnet to move horizontally on the loading platform 2 to attract the external magnet 501, and use the suction force to drive the plug 202 upward to protrude out of the microhole 201. At this time, the upper bend will break away from the clamping part 602 and be limited at the lower edge of the microhole 201, while the lower bend will re-engage with the clamping part 602 to prevent the plug 202 from breaking away.

[0072] Example 2:

[0073] The structure is basically the same as that of Example 1, except that: a device for processing precision plastic parts made of recycled materials. Compared with the method of blowing airflow along the micropores 201 toward the outside of the loading platform 2 in Example 1, this embodiment uses an air pump 12 to suck the airflow inside the chassis, and the one-way valve 11 restricts the airflow from flowing toward the outside of the chassis, so that the airflow is sucked into the micropores 201, and activated carbon is filled in the gas tank 13 to adsorb harmful gases in the airflow.

[0074] The adsorbent colloid 203, fluororubber ring 4, positive flange 402, and reverse flange 403 on the plug 202 are also removed. After the plug 202 is pressed into the micropores 201, all micropores 201 maintain smooth airflow, generating a certain suction force to attract the consumable part 3. This saves the steps of disassembling and assembling the adsorbent colloid 203 and simplifies the printing steps.

[0075] The magnetic material and the magnetic attraction between the inner magnet 502 and the outer magnet 501 can vertically position the consumable part 3. In addition, the remaining part of the plug 202 can horizontally position the consumable part 3, so that the consumable part 3 can stably carry the printed part.

[0076] At this time, the exhaust fan 20 is used to suck clean air from the air conditioning system and send it into the interior of the chassis, and the direction of this airflow is staggered away from the print head 1.

[0077] The foregoing merely represents optional embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A device for processing recycled precision plastic parts, characterized in that: include: A chassis, wherein a print head (1), a three-dimensional displacement system for moving the print head (1), and an air intake mechanism staggered with the print head (1) are arranged inside the chassis; A loading platform (2), the loading platform (2) being connected to the three-dimensional displacement system, the loading platform (2) being provided with an air storage tank (205) in communication with the air intake mechanism and having a micropore (201) in communication with the air storage tank (205) in its surface, the micropore (201) being provided with a plug (202) and a lining member and a pulling member connected to the plug (202), and an annular adsorbent colloid (203) and an air outlet (204) in communication with the air storage tank (205) being provided at intervals at one end of the plug (202) passing through the micropore (201); A consumable part (3), the consumable part (3) is used to be laid on the material loading platform (2) to cushion the bottom of the printed part, and a magnetic material for attracting the liner member is embedded in the consumable part (3); During printing, the consumable part (3) presses down a portion of the plug (202) to close the micropore (201) and the air outlet (204), so as to limit the airflow from avoiding the printing point and dissipate heat for the printed part, and to clear the toxic gas, so that the other portion of the plug (202) can position the consumable part (3).

2. The device for processing recycled precision plastic parts according to claim 1, characterized in that: The outer side of the plug (202) is bonded with a fluororubber ring (4) for coating the adsorbent colloid (203) and a positive flange (402) bonded to the outer side of the fluororubber ring (4). The fluororubber ring (4) is provided with a vent hole (401) for the adsorbent colloid (203) to contact the toxic gas. The outer edge of the micropore (201) is fixed with a reverse flange (403) adapted to the positive flange (402). When the positive flange (402) and the reverse flange (403) are engaged, they are used to block slag.

3. The device for processing precision plastic parts made of recycled materials according to claim 1, characterized in that: The lining member comprises an inner magnet (502) fixed in sequence inside the gas storage tank (205) along the axial direction of the micropore (201), a clamping member (602) for supporting the inner magnet (502), a first elastic member (603) bonded to the outer side of the clamping member (602), and an alloy skeleton (604); an end of the plug (202) away from the loading platform (2) is embedded with an outer magnet (501) for attracting the inner magnet (502) and the magnetic material, and the other end is fixed with an inner bent pin (601) that fits the clamping member (602).

4. The device for processing recycled precision plastic parts according to claim 3, characterized in that: The pulling member comprises a second elastic member (605) bonded to one end of the inner-bend pin (601) close to the alloy frame (604), and the four corners of the alloy frame (604) are embedded with limiting columns (606) fixedly connected to the inner wall of the gas storage tank (205).

5. The device for processing recycled precision plastic parts according to claim 1, characterized in that: A seat bracket (7) that is transmission-connected to the three-dimensional displacement system and two hollow frames (8) distributed at both ends of the seat bracket (7) are fixed to a side of the loading platform (2) away from the plug (202).

6. The device for processing recycled precision plastic parts according to claim 1, characterized in that: The air intake mechanism comprises an air intake pipe (9), a connecting pipe (10) and a one-way valve (11) which are sequentially connected to the air storage tank (205); the one-way valve (11) is used to limit the flow of air toward the interior of the chassis.

7. The device for processing recycled precision plastic parts according to claim 6, characterized in that: The air inlet of the one-way valve (11) is connected to an air storage tank (13) and an air pump (12) in sequence, and the one-way valve (11) is pushed open when the internal pressure of the air storage tank (13) reaches a set value.

8. The device for processing recycled precision plastic parts according to claim 1, characterized in that: A silo (14) and a guide wheel tube (16) are fixed to the back of the chassis, and a winding roller (15) for winding recycled materials is rotatably installed in the middle of the silo (14).

9. The device for processing recycled precision plastic parts according to claim 1, characterized in that: The print head (1) is provided with a cooling fan (17) and a slide rail (18) connected to the three-dimensional displacement system. Wherein, the blowing direction of the cooling fan (17) is staggered from the loading platform (2).

10. The device for processing recycled precision plastic parts according to claim 1, characterized in that: An air collecting hood (19) facing the loading platform (2) and a bellows (21) in communication with the air collecting hood (19) are fixed on the top of the chassis, and an exhaust fan (20) for attracting air flow inside the chassis is fixed to the air inlet of the air collecting hood (19).

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