A printing work box and 3D printing equipment

Abstract

This application relates to a printing work box, characterized by comprising a work box body, a fixed base plate, and a lifting base plate. The fixed base plate is disposed at the bottom of the work box body, and the lifting base plate is movably disposed within the work box body. The fixed base plate has a plurality of sand-draining holes and mounting grooves spaced apart. The sand-draining holes face the gap between the lifting base plate and the work box body, and both the sand-draining holes and the mounting grooves are arranged in a ring around the edge of the fixed base plate. An electromagnetic shielding strip is disposed within the mounting groove, and the electromagnetic shielding strip protrudes from the fixed base plate. This application also relates to a 3D printing device. This solution can solve the problem that current microwave heating methods for printing work boxes are difficult to meet the temperature required for binder hardening.

Description

Technical Field

[0001] This invention relates to the field of 3D printing equipment technology, and in particular to a printing work box and 3D printing equipment. Background Technology

[0002] Currently, 3D printing methods mainly include microwave curing, laser sintering, ultraviolet curing, and chemical reaction molding. Laser equipment and photopolymerization equipment are generally expensive, have high material requirements, and low printing efficiency. In contrast, micro-jetting bonding is a lower-cost, simpler method with promising application prospects. This method uses a nozzle to spray adhesive onto a prepared powder layer along a specific path, bonding the powder at certain locations to form a layer outlining the three-dimensional component. Then, a new layer of powder is laid, and the process of jetting and bonding is repeated. By stacking multiple layers of adhesive, a three-dimensional bonded preform can be obtained.

[0003] With changes in the market environment, materials such as phenolic resin, inorganic binders, and metal binders have more advantages than furan resin. However, phenolic resin requires high temperatures to achieve strength, and inorganic and metal binders only function when moisture is lost. In 3D printing, the print head has limited temperature tolerance, leading to significant frame drops and compromised process quality. Furthermore, as the depth of the printing chamber increases, existing heating methods cannot fully cure the product, often resulting in product failure from the middle to the bottom due to insufficient temperature for the binder. This significantly limits the application of phenolic resin, inorganic binders, and metal binders. Summary of the Invention

[0004] Therefore, it is necessary to provide a printing workbox and 3D printing equipment to address the problem that the current microwave heating method of printing workboxes is difficult to meet the temperature required for binder hardening.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] In a first aspect, embodiments of the present invention disclose a printing work box, comprising a work box body, a fixed base plate, and a lifting base plate. The fixed base plate is disposed at the bottom of the work box body, and the lifting base plate is movably disposed within the work box body. The fixed base plate is provided with a plurality of sand-draining holes and mounting grooves spaced apart. The sand-draining holes face the gap between the lifting base plate and the work box body, and both the sand-draining holes and the mounting grooves are arranged in a ring around the edge of the fixed base plate. An electromagnetic shielding strip is disposed in the mounting groove, and the electromagnetic shielding strip protrudes from the fixed base plate.

[0007] In one embodiment, the sand-draining holes and the mounting grooves are arranged at intervals along the edge of the fixed base plate toward the center.

[0008] In one embodiment, the fixed base plate is provided with a plurality of mounting slots spaced apart, and the plurality of mounting slots are distributed at intervals, and each mounting slot is provided with an electromagnetic shielding strip.

[0009] In one embodiment, the plurality of the sand leakage holes are arranged in two rows at intervals, with each row of the sand leakage holes arranged in a ring around the edge of the fixed base plate, and the sand leakage holes in one row facing the center of the two sand leakage holes in the other row.

[0010] In one embodiment, the diameter of the sand leakage hole is greater than 1.5 times the thickness of the fixed base plate.

[0011] In one embodiment, the diameter of the sand leakage hole is less than twice the gap between the lifting base plate and the main body of the work box.

[0012] In one embodiment, the electromagnetic shielding strip is a metal mesh structure.

[0013] In one embodiment, a cleaning component is also included, which is detachably disposed on the outer edge of the lifting base plate.

[0014] In one embodiment, the cleaning component is detachably mounted on the outer edge of the lifting base plate via a pressure plate, and the cleaning component is felt.

[0015] Secondly, embodiments of the present invention disclose a 3D printing device, including the printing work box described above.

[0016] The technical solution adopted in this invention can achieve the following beneficial effects:

[0017] In the printing workbox disclosed in this invention, a sand-leaking hole and a mounting groove are provided on the fixed base plate, and an electromagnetic shielding strip is installed in the mounting groove. The electromagnetic shielding strip can block and reflect microwaves leaking from between the lifting base plate and the workbox body, thereby preventing microwave leakage. The sand-leaking hole can leak sand to prevent sand accumulation on the fixed base plate from affecting the movement of the lifting base plate, while also ensuring that the electromagnetic shielding strip can always block and reflect microwaves leaking from between the lifting base plate and the workbox body. Compared with the prior art, the printing workbox disclosed in this invention can reduce microwave leakage, improve microwave heating and curing efficiency, thereby meeting the temperature required for adhesive curing and improving production efficiency. Attached Figure Description

[0018] Figure 1 This is an exploded view of the printing workbox disclosed in an embodiment of the present invention;

[0019] Figure 2This is a schematic diagram of the structure of the fixed base plate disclosed in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the printing workbox disclosed in an embodiment of the present invention;

[0021] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100-Work box body, 200-Fixed base plate, 210-Sand leakage hole, 220-Electromagnetic shielding strip, 300-Lifting base plate, 400-Cleaning parts, 500-Pressure plate. Detailed Implementation

[0024] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0025] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] like Figures 1-4 As shown in the figure, an embodiment of the present invention discloses a printing work box, which includes a work box body 100, a fixed base plate 200 and a lifting base plate 300.

[0028] The main body 100 of the printing work box is the main component of the printing work box. The fixed base plate 200 is set at the bottom of the main body 100 of the printing work box. The fixed base plate 200 usually has a through hole in the middle to allow sand to leak and reduce weight. The lifting base plate 300 is movably set inside the main body 100 of the printing work box. During operation, the printing work is realized by lifting the lifting base plate 300.

[0029] In this embodiment of the invention, a plurality of sand-draining holes 210 and mounting grooves are respectively spaced apart on the fixed base plate 200. The sand-draining holes 210 face the gap between the lifting base plate 300 and the working box body 100. Both the sand-draining holes 210 and the mounting grooves are arranged in a ring around the edge of the fixed base plate 200. That is, the plurality of sand-draining holes 210 form a ring of sand-draining structure and are arranged in a ring around the edge of the fixed base plate 200. Similarly, the mounting groove is a ring-shaped part and is arranged in a ring around the edge of the fixed base plate 200.

[0030] An electromagnetic shielding strip 220 is installed in the mounting slot, which provides an installation position for the electromagnetic shielding strip 220, which protrudes from the fixed base plate 200. During operation, the sand leakage hole 110 serves to leak sand, while the electromagnetic shielding strip 220 acts as a seal and reflects microwaves.

[0031] As described above, in the printing workbox disclosed in this embodiment of the invention, a sand-leaking hole 210 and a mounting groove are provided on the fixed base plate 200, and an electromagnetic shielding strip 220 is provided in the mounting groove. The electromagnetic shielding strip 220 can block and reflect microwaves leaking from between the lifting base plate 300 and the workbox body 100, thereby preventing microwave leakage. The sand-leaking hole 210 can leak sand, preventing sand accumulation on the fixed base plate 200 from affecting the movement of the lifting base plate 300, while also ensuring that the electromagnetic shielding strip 220 can always block and reflect microwaves leaking from between the lifting base plate 300 and the workbox body 100. Compared with the prior art, the printing workbox disclosed in this invention can reduce microwave leakage, improve microwave heating and curing efficiency, thereby meeting the temperature required for adhesive curing and improving production efficiency.

[0032] In the embodiments disclosed in this invention, the sand leakage hole 210 and the mounting groove can be arranged at intervals from the edge of the fixed base plate 200 toward the center, that is, the mounting groove is inside the sand leakage hole 210. This arrangement allows the electromagnetic shielding strip 220 to be located inside the sand leakage hole 210, so that the old sand leaking from between the lifting base plate 300 and the working box body 100 first leaks out through the sand leakage hole 210, thereby preventing the old sand from falling onto the electromagnetic shielding strip 220 and accumulating, thus preventing it from affecting the electromagnetic shielding strip 220's function of blocking and reflecting microwaves.

[0033] Furthermore, the fixed base plate 200 can be provided with multiple mounting slots spaced apart, and each mounting slot can be equipped with an electromagnetic shielding strip 220. In this case, it is equivalent to arranging multiple rows of electromagnetic shielding strips 220, thereby improving the blocking and reflection effect of microwaves, thus better reducing microwave leakage, improving microwave heating and curing efficiency, making it easier to meet the temperature required for adhesive curing, and improving production efficiency.

[0034] In the embodiments disclosed in this invention, the plurality of sand leakage holes 210 can be arranged in two rows at intervals, and each row of sand leakage holes 210 can be arranged in a ring around the edge of the fixed base plate 200, with one row of sand leakage holes 210 facing the center of the other row of two sand leakage holes 210. This method not only facilitates sand leakage, but also prevents microwave leakage from the sand leakage holes 210.

[0035] In another alternative embodiment, the diameter of the sand leakage hole 210 can be greater than 1.5 times the thickness of the fixed base plate 200, thereby better preventing microwave leakage from the sand leakage hole 210.

[0036] In another optional embodiment, the diameter of the sand leakage hole 210 is less than twice the gap between the lifting base plate 300 and the working box body 100. In this case, by comparing the diameter of the sand leakage hole 210 with the gap between the lifting base plate 300 and the working box body 100, the size of the sand leakage hole 210 is designed to be less prone to microwave leakage, thereby better preventing microwave leakage caused by the sand leakage hole 210.

[0037] In this embodiment of the invention, the electromagnetic shielding strip 220 can be a metal mesh structure. This electromagnetic shielding strip 220 has a better microwave reflection effect, can better prevent microwave leakage, improve microwave heating and curing efficiency, thereby meeting the temperature required for adhesive curing and improving production efficiency.

[0038] The printing workbox disclosed in this embodiment of the invention may further include a cleaning component 400, which is detachably disposed on the outer edge of the lifting base plate 300. The cleaning component 400 can clean the inner wall of the workbox body 100 during the movement of the lifting base plate 300, thereby ensuring the cleanliness of the inner wall of the workbox body 100, thus ensuring the microwave reflection effect and improving the microwave heating curing efficiency.

[0039] Furthermore, the cleaning component 400 can be detachably mounted on the outer edge of the lifting base plate 300 via the pressure plate 500. This method is simple and easy to operate. Of course, other detachable connection methods are also possible, and this embodiment of the invention does not limit this. Preferably, the cleaning component 400 can be felt, which has the functions of vibration (dust) protection, insulation, cleaning, electromagnetic wave prevention, antistatic, and dust prevention, thereby improving the cleaning effect.

[0040] Based on the printing workbox disclosed in the embodiments of the present invention, the present invention discloses a 3D printing device, including the printing workbox described in any of the above embodiments.

[0041] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A print job box, characterized by, The printing workbox comprises a workbox body (100), a fixed bottom plate (200) and a lifting bottom plate (300), the fixed bottom plate (200) is arranged at the bottom of the workbox body (100), the lifting bottom plate (300) is movably arranged in the workbox body (100), a plurality of sand leakage holes (210) and a mounting groove are respectively arranged on the fixed bottom plate (200), the sand leakage holes (210) are towards the gap between the lifting bottom plate (300) and the workbox body (100), and the sand leakage holes (210) and the mounting groove are annularly arranged around the edge of the fixed bottom plate (200), the sand leakage holes (210) and the mounting groove are sequentially and spacedly arranged towards the center position of the edge of the fixed bottom plate (200), an electromagnetic shielding strip (220) is arranged in the mounting groove, and the electromagnetic shielding strip (220) protrudes from the fixed bottom plate (200).

2. The print job box of claim 1, wherein, A plurality of mounting grooves are spacedly arranged on the fixed bottom plate (200), the mounting grooves are spacedly distributed, and the electromagnetic shielding strip (220) is arranged in each mounting groove.

3. The print job box of claim 1, wherein, The plurality of sand leakage holes (210) are spacedly arranged in two rows, each row of the sand leakage holes (210) is annularly arranged around the edge of the fixed bottom plate (200), and the sand leakage holes (210) in one row are towards the centers of the two sand leakage holes (210) in the other row.

4. The print job box of claim 1, wherein, The aperture of the sand leakage hole (210) is greater than 1.5 times the thickness of the fixed bottom plate (200).

5. The print job box of claim 1, wherein, The aperture of the sand leakage hole (210) is less than 2 times the gap between the lifting bottom plate (300) and the workbox body (100).

6. The print job box of claim 1, wherein, The electromagnetic shielding strip (220) is a metal mesh structure.

7. The print job box of claim 1, wherein, A cleaning piece (400) is further arranged, the cleaning piece (400) is detachably arranged at the outer edge of the lifting bottom plate (300).

8. The print job box of claim 7, wherein, The cleaning piece (400) is detachably arranged at the outer edge of the lifting bottom plate (300) by a pressing plate (500), and the cleaning piece (400) is a felt.

9. A 3D printing device, characterized by The printing workbox comprises the printing workbox according to any one of claims 1 to 8.

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