Device for preparing plastic-based framework and gradient metal powder and paraffin mixture

Abstract

The invention discloses a device for preparing a plastic-based framework and a gradient metal powder and paraffin mixture, and belongs to the technical field of emitter preparation. The device comprises a first parting mold cavity, a second parting mold cavity and a top cover, the first parting mold cavity and the second parting mold cavity are symmetrically arranged and detachably connected to form a mold cavity, and the top cover is detachably arranged above the mold cavity; a plurality of first semi-cylindrical grooves are formed in the inner side of the first parting mold cavity side by side, and a plurality of second semi-cylindrical grooves are formed in the inner side of the second parting mold cavity side by side; each first semi-cylindrical groove and the corresponding second semi-cylindrical groove form a cylindrical groove; the top cover comprises a first-stage top cover, a second-stage top cover and a third-stage top cover; each of the first-stage top cover, the second-stage top cover and the third-stage top cover comprises a platform and a plurality of cylindrical bosses; the cylindrical bosses are arranged on the same end face of the platform side by side. And the cylindrical boss can be inserted into the cylindrical groove.

Description

Technical Field

[0001] The present invention belongs to the technical field of launch system preparation, and particularly relates to a device for preparing a plastic-based framework and a mixture of gradient metal powder and paraffin wax. Background Art

[0002] In the field of launch system preparation, it is difficult to meet the requirements of high-efficiency damage and low collateral damage after die-casting of traditional single metal powder or multiple metal powders. Due to its excellent structural support and mass gradient change characteristics, the plastic-based framework and the mixture of gradient metal powder and paraffin wax have gradually become essential products for high-efficiency damage to doors, windows, and guardrails. However, existing preparation technologies have problems such as low forming accuracy, complex processes, and poor forming quality, making it difficult to achieve precise distribution and uniform forming of gradient materials. For example, although the selective laser melting technology can achieve a certain gradient distribution, the interface is obvious and continuous; the 3D printing technology cannot meet the requirements of processing multi-phase media of paraffin wax and metal powder.

[0003] Therefore, there is an urgent need for a new device that can precisely control the gradient distribution, simplify the process flow, and have high forming quality. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a device for preparing a plastic-based framework and a mixture of gradient metal powder and paraffin wax. On the basis of the formed plastic-based framework, this device takes into account the mixture of metal powder and paraffin wax with different thicknesses (gradients), and can cast and form the plastic-based framework, metal powder, and paraffin wax mixture, having the advantages of simple structure, low cost, and being suitable for mass production.

[0005] The present invention proposes a device for preparing a plastic-based framework and a mixture of gradient metal powder and paraffin wax, and the device includes: a first split mold cavity, a second split mold cavity, and a top cover; the first split mold cavity and the second split mold cavity are symmetrically arranged and detachably connected to form a mold cavity, and the top cover is detachably arranged above the mold cavity;

[0006] A plurality of first semi-cylindrical grooves are arranged side by side on the inner side of the first split mold cavity, and a plurality of second semi-cylindrical grooves are arranged side by side on the inner side of the second split mold cavity; the number and size of the first semi-cylindrical grooves and the second semi-cylindrical grooves are equal, and each first semi-cylindrical groove and the corresponding second semi-cylindrical groove form a cylindrical groove; one end of the cylindrical groove is open, and the other end of the cylindrical groove is closed; the cylindrical groove is used for placing the plastic-based framework;

[0007] The top cover includes: a first-level top cover, a second-level top cover, and a third-level top cover;

[0008] The first-level top cover, second-level top cover, and third-level top cover all include: a platform and a plurality of cylindrical bosses; the plurality of cylindrical bosses are arranged side by side on the same end face of the platform; the lengths of the cylindrical bosses of the first-level top cover, second-level top cover, and third-level top cover decrease in sequence, corresponding to the lengths of the three-level metal powder and paraffin mixture of the emitter; the cylindrical bosses can be inserted into the cylindrical grooves.

[0009] For the device according to the present invention, a plurality of the cylindrical grooves are arranged side by side at equal intervals.

[0010] For the device according to the present invention, the inner diameter of the cylindrical groove is equal to the outer diameter of the plastic-based framework.

[0011] For the device according to the present invention, the diameters of the cylindrical bosses of the first-level top cover, second-level top cover, and third-level top cover are all equal.

[0012] For the device according to the present invention, the diameters of the cylindrical bosses of the first-level top cover, second-level top cover, and third-level top cover are not greater than the inner diameter of the cylindrical groove.

[0013] For the device according to the present invention, the first split mold cavity is connected to the second split mold cavity by a plurality of first bolts;

[0014] A plurality of first threaded holes corresponding to the first bolts one by one are provided on the first split mold cavity and the second split mold cavity, and the plurality of first threaded holes are arranged side by side at equal intervals;

[0015] The top cover is connected to the first split mold cavity and / or the second split mold cavity by a plurality of second bolts;

[0016] A plurality of second threaded holes corresponding to the second bolts one by one are provided on the top cover and the first split mold cavity and / or the second split mold cavity; wherein, the plurality of second threaded holes on the first split mold cavity and / or the second split mold cavity are all arranged side by side at equal intervals, the plurality of second threaded holes on the top cover are divided into two rows, and the two rows of second threaded holes are symmetrically arranged with the vertical plane where the plurality of cylindrical bosses are located as the symmetry plane; the plurality of second threaded holes in each row are arranged at equal intervals.

[0017] For the device according to the present invention, the first bolts pass through the first split mold cavity and the second split mold cavity and are fixed by nuts, and first washers are arranged between the first split mold cavity or the second split mold cavity and the nuts;

[0018] The second bolts pass through the top cover and are fixed on the first split mold cavity and / or the second split mold cavity, and second washers are arranged between the top cover and the second bolts.

[0019] For the device according to the present invention, both the first washers and the second washers are elastic washers.

[0020] For the device according to the present invention, the implementation steps of the device include:

[0021] Step S1: Assemble the first split mold cavity and the second split mold cavity to form a mold cavity containing a cylindrical groove, and place the plastic base skeleton at the bottom of the cylindrical groove;

[0022] Step S2: Cast a liquid mixture of the first metal powder and paraffin into the cylindrical groove to form a first preset height, insert the cylindrical boss of the first-level top cover into the cylindrical groove, with the end face of the cylindrical boss of the first-level top cover located above the mixture of the first metal powder and paraffin, fix the first-level top cover to the mold cavity, and remove the first-level top cover after the mixture of the first metal powder and paraffin solidifies;

[0023] Step S3: Cast a liquid mixture of the second metal powder and paraffin into the cylindrical groove containing the mixture of the first metal powder and paraffin to form a second preset height, insert the cylindrical boss of the second-level top cover into the cylindrical groove, with the end face of the cylindrical boss of the second-level top cover located above the mixture of the second metal powder and paraffin, fix the second-level top cover to the mold cavity, and remove the second-level top cover after the mixture of the second metal powder and paraffin solidifies;

[0024] Step S4: Cast a liquid mixture of the third metal powder and paraffin into the cylindrical groove containing the mixture of the second metal powder and paraffin to form a third preset height, insert the cylindrical boss of the third-level top cover into the cylindrical groove, with the end face of the cylindrical boss of the third-level top cover located above the mixture of the third metal powder and paraffin, fix the third-level top cover to the mold cavity, and remove the third-level top cover, the first split mold cavity and the second split mold cavity after the mixture of the third metal powder and paraffin solidifies, and take out the finished product.

[0025] For the device according to the present invention, the densities of the first metal powder, the second metal powder and the third metal powder decrease in sequence.

[0026] The solution proposed by the present invention has the following technical effects:

[0027] Based on the formed plastic base skeleton, the device of the present invention takes into account the mixtures of metal powders and paraffin with different thicknesses (gradients), and can cast and form the plastic base skeleton, the mixtures of metal powders and paraffin. It has the advantages of simple structure, low cost and being suitable for mass production. Description of the Drawings

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is an exploded view of a device for preparing a plastic-based skeleton and a mixture of gradient metal powder and paraffin in an embodiment of the present invention.

[0030] Figure 2 It is the front view of a device for preparing a plastic-based skeleton and a mixture of gradient metal powder and paraffin in an embodiment of the present invention.

[0031] Figure 3 is Figure 2 The A-A cross-sectional view of

[0032] Figure 4 is Figure 3 The partial enlarged view of

[0033] Figure 5 is Figure 2 The B-B cross-sectional view of

[0034] Figure 6 is Figure 2 The C-C cross-sectional view of

[0035] In the figure, 1 - the first bolt, 2 - the first parting mold cavity, 3 - the plastic-based skeleton, 4 - the second parting mold cavity, 5 - the first washer, 6 - the nut, 7 - the first-level top cover, 8 - the second-level top cover, 9 - the third-level top cover, 10 - the second washer, 11 - the second bolt. Specific Embodiments

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] This embodiment provides a device for preparing a plastic-based skeleton and a mixture of gradient metal powder and paraffin, as shown in Figure 1 The device includes: the first parting mold cavity 2, the second parting mold cavity 4, and the top covers 7, 8, 9; as shown in Figure 2As shown, the first split mold cavity 2 and the second split mold cavity 4 are symmetrically arranged and detachably connected to form a mold cavity, and the top covers 7, 8, and 9 are detachably arranged above the mold cavity.

[0038] A plurality of first semi-cylindrical grooves are arranged side by side on the inner side of the first split mold cavity 2, and a plurality of second semi-cylindrical grooves are arranged side by side on the inner side of the second split mold cavity 4; the number and size of the first semi-cylindrical grooves and the second semi-cylindrical grooves are equal, and each first semi-cylindrical groove and the corresponding second semi-cylindrical groove form a cylindrical groove; one end of the cylindrical groove is open, and the other end of the cylindrical groove is closed; the cylindrical groove is used to place the plastic base skeleton 3.

[0039] The top covers 7, 8, and 9 include: a first-level top cover 7, a second-level top cover 8, and a third-level top cover 9.

[0040] The first-level top cover 7, the second-level top cover 8, and the third-level top cover 9 all include: a platform and a plurality of cylindrical bosses; the plurality of cylindrical bosses are arranged side by side on the same end face of the platform; the lengths of the cylindrical bosses of the first-level top cover 7, the second-level top cover 8, and the third-level top cover 9 decrease in sequence, corresponding to the lengths of the three-level metal powder and paraffin mixture of the emitter; the cylindrical bosses can be inserted into the cylindrical grooves.

[0041] In some embodiments, the plurality of cylindrical grooves are arranged side by side at equal intervals, so as to ensure the processing of multiple products at one time, and the equal interval arrangement is to ensure the consistency of heat dissipation.

[0042] In some embodiments, the inner diameter of the cylindrical groove is equal to the outer diameter of the plastic base skeleton 3.

[0043] In some embodiments, the diameters of the cylindrical bosses of the first-level top cover 7, the second-level top cover 8, and the third-level top cover 9 are all equal.

[0044] In some embodiments, the diameters of the cylindrical bosses of the first-level top cover 7, the second-level top cover 8, and the third-level top cover 9 are not greater than the inner diameter of the cylindrical groove.

[0045] In some embodiments, the first split mold cavity 2 is connected to the second split mold cavity 4 through a plurality of first bolts 1;

[0046] A plurality of first threaded holes corresponding to the first bolts 1 one by one are arranged on the first split mold cavity 2 and the second split mold cavity 4, and the plurality of first threaded holes are arranged side by side at equal intervals to ensure the uniformity of force, which is also an important factor to ensure the consistency of the gap.

[0047] The top covers 7, 8, and 9 are connected to the first split mold cavity 2 and / or the second split mold cavity 4 through a plurality of second bolts / 11;

[0048] A plurality of second threaded holes corresponding to the second bolts one by one are provided on the top cover and the first split mold cavity 2 and / or the second split mold cavity 4; wherein, the plurality of second threaded holes on the first split mold cavity 2 and / or the second split mold cavity 4 are arranged side by side at equal intervals to ensure the uniformity of force, which is also an important factor in ensuring the consistency of the gap. The plurality of second threaded holes on the top covers 7, 8, 9 are divided into two rows, and the two rows of second threaded holes are symmetrically arranged with the vertical plane where the plurality of cylindrical bosses are located as the symmetry plane; the plurality of second threaded holes in each row are arranged at equal intervals.

[0049] Specifically, the diameter of the first threaded hole is smaller than the outer diameter of the head of the first bolt 1; the diameter of the second threaded hole is smaller than the outer diameter of the head of the second bolt 11.

[0050] In some embodiments, the first bolt 1 passes through the first split mold cavity 2 and the second split mold cavity 4 and is fixed by a nut 6, and a first washer 5 is arranged between the first split mold cavity 2 or the second split mold cavity 4 and the nut to prevent the first bolt 1 from loosening;

[0051] The second bolt 11 passes through the top covers 7, 8, 9 and is fixed on the first split mold cavity 2 and / or the second split mold cavity 4, and a second washer 10 is arranged between the top covers 7, 8, 9 and the second bolt 11 to prevent the second bolt 11 from loosening.

[0052] In some embodiments, both the first washer 5 and the second washer 10 are elastic washers.

[0053] In some embodiments, the implementation steps of the device include:

[0054] Step S1, assembling the first split mold cavity 2 and the second split mold cavity 4 to form a mold cavity including a cylindrical groove, and placing the plastic base skeleton 3 at the bottom of the cylindrical groove;

[0055] Step S2, casting a liquid mixture of the first metal powder and paraffin into the cylindrical groove to form a first preset height (which can be 5 mm), inserting the cylindrical boss of the first-level top cover 7 into the cylindrical groove, the end surface of the cylindrical boss of the first-level top cover 7 being located above the mixture of the first metal powder and paraffin, fixing the first-level top cover 7 to the mold cavity, and removing the first-level top cover 7 after the mixture of the first metal powder and paraffin is cured;

[0056] Step S3: Cast the liquid mixture of the second metal powder and paraffin into the cylindrical groove containing the mixture of the first metal powder and paraffin to form a second preset height (which can be 5 mm). Insert the cylindrical boss of the secondary top cover 8 into the cylindrical groove. The end face of the cylindrical boss of the secondary top cover 8 is located above the mixture of the second metal powder and paraffin. Fix the secondary top cover 8 to the mold cavity. Remove the secondary top cover 8 after the mixture of the second metal powder and paraffin solidifies.

[0057] Step S4: Cast the liquid mixture of the third metal powder and paraffin into the cylindrical groove containing the mixture of the second metal powder and paraffin to form a third preset height (which can be 27 mm). Insert the cylindrical boss of the tertiary top cover 9 into the cylindrical groove. The end face of the cylindrical boss of the tertiary top cover 9 is located above the mixture of the third metal powder and paraffin. Fix the tertiary top cover 9 to the mold cavity. Remove the tertiary top cover 9, the first split mold cavity 2, and the second split mold cavity 4 after the mixture of the third metal powder and paraffin solidifies, and take out the finished product.

[0058] In some embodiments, the densities of the first metal powder, the second metal powder, and the third metal powder decrease in sequence.

[0059] Preferably, the first metal powder is a tungsten alloy powder, the second metal powder is a lead alloy powder, and the third metal powder is an iron alloy powder.

[0060] In summary, the solution proposed by the present invention has the following technical effects:

[0061] Based on the formed plastic matrix framework, the device of the present invention takes into account the mixtures of metal powders and paraffin with different thicknesses (gradients), and can cast the plastic matrix framework, the mixtures of metal powders and paraffin into a formed shape. It has the advantages of simple structure, low cost, and being suitable for mass production.

[0062] Please note that the technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification. The above embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An apparatus for preparing a plastic-based skeleton and a mixture of gradient metal powder and paraffin, characterized in that, The device includes: a first split mold cavity, a second split mold cavity, and a top cover; the first split mold cavity and the second split mold cavity are symmetrically arranged and detachably connected to form a mold cavity, and the top cover is detachably arranged above the mold cavity; A plurality of first semi-cylindrical grooves are arranged side by side on the inner side of the first split mold cavity, and a plurality of second semi-cylindrical grooves are arranged side by side on the inner side of the second split mold cavity; the number and size of the first semi-cylindrical grooves and the second semi-cylindrical grooves are equal, and each first semi-cylindrical groove and the corresponding second semi-cylindrical groove form a cylindrical groove; one end of the cylindrical groove is open, and the other end of the cylindrical groove is closed; the cylindrical groove is used for placing a plastic base skeleton; The top cover includes: a first-level top cover, a second-level top cover, and a third-level top cover; The first-level top cover, the second-level top cover, and the third-level top cover all include: a platform and a plurality of cylindrical bosses; the plurality of cylindrical bosses are arranged side by side on the same end surface of the platform; the lengths of the cylindrical bosses of the first-level top cover, the second-level top cover, and the third-level top cover decrease in sequence, corresponding to the lengths of the three-level metal powder and paraffin mixture of the emitter; the cylindrical bosses can be inserted into the cylindrical grooves.

2. The device according to claim 1, characterized in that, A plurality of the cylindrical grooves are arranged side by side at equal intervals.

3. The device according to claim 1, characterized in that, The inner diameter of the cylindrical groove is equal to the outer diameter of the plastic base skeleton.

4. The device according to claim 1, characterized in that, The diameters of the cylindrical bosses of the first-level top cover, the second-level top cover, and the third-level top cover are all equal.

5. The device according to claim 1, characterized in that, The diameters of the cylindrical bosses of the first-level top cover, the second-level top cover, and the third-level top cover are not greater than the inner diameter of the cylindrical groove.

6. The device according to claim 1, characterized in that, The first split mold cavity is connected to the second split mold cavity through a plurality of first bolts; A plurality of first threaded holes corresponding to the first bolts one by one are arranged on the first split mold cavity and the second split mold cavity, and the plurality of first threaded holes are arranged side by side at equal intervals; The top cover is connected to the first split mold cavity and / or the second split mold cavity through a plurality of second bolts; A plurality of second threaded holes corresponding to the second bolts one by one are arranged on the top cover and the first split mold cavity and / or the second split mold cavity; wherein, the plurality of second threaded holes on the first split mold cavity and / or the second split mold cavity are all arranged side by side at equal intervals, and the plurality of second threaded holes on the top cover are divided into two rows, and the two rows of second threaded holes are symmetrically arranged with the vertical plane where the plurality of cylindrical bosses are located as the symmetry plane; the plurality of second threaded holes in each row are arranged at equal intervals.

7. The device according to claim 6, characterized in that, The first bolt passes through the first split mold cavity and the second split mold cavity and is fixed by a nut, and a first washer is arranged between the first split mold cavity or the second split mold cavity and the nut; The second bolt passes through the top cover and is fixed on the first split mold cavity and / or the second split mold cavity, and a second washer is arranged between the top cover and the second bolt.

8. The device according to claim 7, characterized in that, Both the first washer and the second washer are elastic washers.

9. The device according to any one of claims 1-8, characterized in that The implementation steps of the device include: Step S1, assembling the first split mold cavity and the second split mold cavity to form a mold cavity containing cylindrical grooves, and placing the plastic base skeleton at the bottom of the cylindrical grooves; Step S2: Pour the liquid mixture of the first metal powder and paraffin into the cylindrical groove to form a first preset height. Insert the cylindrical boss of the first-level top cover into the cylindrical groove. The end face of the cylindrical boss of the first-level top cover is located above the mixture of the first metal powder and paraffin. Fix the first-level top cover to the mold cavity. Remove the first-level top cover after the mixture of the first metal powder and paraffin solidifies. Step S3: Pour the liquid mixture of the second metal powder and paraffin into the cylindrical groove containing the mixture of the first metal powder and paraffin to form a second preset height. Insert the cylindrical boss of the second-level top cover into the cylindrical groove. The end face of the cylindrical boss of the second-level top cover is located above the mixture of the second metal powder and paraffin. Fix the second-level top cover to the mold cavity. Remove the second-level top cover after the mixture of the second metal powder and paraffin solidifies. Step S4: Pour the liquid mixture of the third metal powder and paraffin into the cylindrical groove containing the mixture of the second metal powder and paraffin to form a third preset height. Insert the cylindrical boss of the third-level top cover into the cylindrical groove. The end face of the cylindrical boss of the third-level top cover is located above the mixture of the third metal powder and paraffin. Fix the third-level top cover to the mold cavity. Remove the third-level top cover, the first split mold cavity, and the second split mold cavity after the mixture of the third metal powder and paraffin solidifies, and take out the finished product.

10. The device according to claim 9, characterized in that, The densities of the first metal powder, the second metal powder, and the third metal powder decrease in sequence.

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