Production device for bullet support of armor-piercing bullet

Abstract

The utility model discloses a production device for a bullet support of an armor-piercing bullet, which comprises a winding shaft, the winding shaft comprises a core shaft and three shaping blocks, the shaping blocks are arranged around the core shaft, the outer wall of each shaping block is arc-shaped, and the surface of each shaping block is equidistantly provided with shaping grooves penetrating through the two sides of the shaping block; the compaction blocks are arranged on the outer sides of the shaping blocks and used for pressing the wound carbon fiber filaments into the shaping grooves in the surface of the winding shaft; the hot pressing die comprises an upper die and a lower die, and the sides, close to each other, of the upper die and the lower die are provided with semicircular die cavities which are buckled with each other. According to the utility model, the winding shaft, the compaction block and the hot-pressing mold are matched, so that the carbon fiber yarns can be wound on the winding shaft, then the compaction block is adopted to compact the carbon fiber yarns, and finally the hot-pressing mold is adopted to perform hot-pressing molding, so that three sabot clamping petals can be produced at one time each time, and the three sabot clamping petals can form a complete sabot; therefore, one-time production and machining of the sabot are achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of sabot manufacturing, in particular to a production device for sabots of armor-piercing bullets. Background Art

[0002] The sabot is a key component of a discarding sabot armor-piercing projectile. The widely used sabot is a saddle-shaped structure that is evenly divided into three petals along its longitudinal axis. The caliber of the sabot is consistent with that of the cannon. The armor-piercing projectile is made into a slender rod shape. After leaving the barrel, the sabot automatically falls off due to the action of resistance, and the projectile core continues to fly along the direction of the barrel towards the target.

[0003] The function of a sabot is to capture the energy released by the propellant combustion and transfer as much of it as possible to the core. Obviously, the lighter the sabot, the better, which is why carbon fiber composite sabots are widely used. However, traditional carbon fiber composite sabots are typically manufactured individually, resulting in low production efficiency and room for improvement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a production device for a sabot of an armor-piercing projectile, which has the effect of improving production efficiency.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A production device for a sabot of an armor-piercing projectile, comprising:

[0006] A winding shaft comprises a core shaft and three shaping blocks, wherein the shaping blocks are arranged around the core shaft, the outer wall of the shaping block is arranged in an arc shape, and the surface is provided with shaping grooves running through both sides thereof at equal intervals, the center positions of the three shaping blocks are distributed around the center position of the core shaft, and the line connecting the three center points forms an equilateral triangle;

[0007] A compacting block is provided on the outside of each shaping block and is used to press the wound carbon fiber filaments into the shaping groove on the surface of the winding shaft;

[0008] The hot pressing mold comprises an upper mold and a lower mold. The sides of the upper mold and the lower mold close to each other are both provided with semicircular mold cavities that are buckled with each other.

[0009] In a preferred example, the present invention can be further configured as follows: the outer wall of the core shaft is provided with three cutting grooves, the cutting grooves are distributed between two adjacent shaping blocks, and filling blocks are provided in the cutting grooves.

[0010] In a preferred example, the present invention can be further configured as follows: bolts are provided at both ends of the compacting block, and screw holes for screwing the bolts are provided at both ends of the shaping block.

[0011] In a preferred example, the present invention can be further configured as follows: both sides of the compacting block extend above the cutting groove.

[0012] In a preferred example, the present invention can be further configured as follows: the lower mold is provided with overflow grooves distributed on both sides of the mold cavity, and an overflow seam connecting the overflow grooves and the mold cavity is provided between the upper mold and the lower mold.

[0013] In a preferred example, the present invention can be further configured as follows: the upper mold and the lower mold are both provided with guide holes connecting the mold cavity and the overflow groove, and the guide holes are interlocked with each other and arranged in a circular shape.

[0014] In summary, the present invention has the following beneficial effects:

[0015] 1. By using a winding shaft, a compacting block, and a hot pressing mold, the carbon fiber filaments can be wound on the winding shaft, then compacted by the compacting block, and finally hot-pressed by the hot pressing mold. Three support flaps can be produced at one time, and the three support flaps can form a complete support, thereby realizing the one-time production and processing of the support and improving production efficiency.

[0016] 2. By setting a shaping groove on the winding shaft to match the target product, the fine tooth structure on the inner surface of the spring support flap is formed in one step, eliminating machining and improving production efficiency.

[0017] 3. By setting a cutting groove and adding a filling block in the cutting groove, the winding shaft will not be damaged during cutting, thus ensuring the service life of the winding shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of an embodiment;

[0019] Figure 2 It is a structural diagram of an embodiment;

[0020] Figure 3 It is a structural diagram of an embodiment;

[0021] Figure 4 It is a structural diagram of an embodiment;

[0022] Figure 5 It is a structural diagram of an embodiment;

[0023] Figure numerals: 1. Winding shaft; 11. Core shaft; 12. Shaping block; 13. Shaping groove; 14. Cutting groove; 15. Filling block; 16. Screw hole; 2. Compacting block; 21. Bolt; 3. Hot pressing mold; 31. Upper mold; 32. Lower mold; 33. Mold cavity; 34. Overflow groove; 35. Overflow seam; 36. Guide hole. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings.

[0025] like Figure 1 As shown, a production device for a sabot of an armor-piercing projectile includes a winding shaft 1, a compacting block 2 and a hot pressing mold 3.

[0026] like Figure 1 、 Figure 2 As shown, the winding shaft 1 includes a core shaft 11 and three shaping blocks 12. The core shaft 11 and the three shaping blocks 12 are integrally formed. The shaping blocks 12 are arranged around the core shaft 11. The outer wall of the shaping block 12 is arranged in an arc shape, and the surface is equidistantly provided with shaping grooves 13 running through both sides thereof.

[0027] like Figure 1 、 Figure 2 As shown, the centers of the three shaping blocks 12 are distributed around the center of the core shaft 11, and the line connecting the three centers forms an equilateral triangle. The outer wall of the core shaft 11 is provided with three cutting grooves 14, which are distributed between two adjacent shaping blocks 12. The cutting grooves 14 are provided with filling blocks 15.

[0028] like Figure 1 、 Figure 3 、 Figure 4 As shown, a compacting block 2 is disposed outside each shaping block 12 and is used to press the wound carbon fiber filaments into the shaping grooves 13 on the surface of the winding shaft 1. Both sides of the compacting block 2 extend above the cutting grooves 14 to ensure that the carbon fiber filaments are fully distributed on the surface of the shaping block 12. Bolts 21 are provided at both ends of the compacting block 2, and screw holes 16 for screwing the bolts 21 are provided at both ends of the shaping block 12.

[0029] like Figure 1 、 Figure 5 As shown, the hot pressing mold 3 includes an upper mold 31 and a lower mold 32. The upper and lower molds 31 and 32 are each provided with a semicircular mold cavity 33 that interlocks with each other on one side. The lower mold 32 is provided with overflow grooves 34 distributed on both sides of the mold cavity 33. An overflow slit 35 is provided between the upper and lower molds 31 and 32, connecting the overflow grooves 34 and the mold cavity 33. Both the upper and lower molds 31 and 32 are provided with guide holes 36 that connect the mold cavity 33 and the overflow grooves 34. The guide holes 36 are arranged in a circular manner that interlock with each other.

[0030] When the cartridge case needs to be processed, a filling block 15 is first placed in the cutting groove 14. The filling block 15 can be a wood block, a resin block, a sponge block, etc. Then, the carbon fiber filaments are wound along the circumference of the winding shaft 1, and then the carbon fiber filaments are laid along the axial direction of the winding shaft 1.

[0031] Then, multiple shaping blocks 12 are buckled onto the outer wall of the shaping block 12 on the winding shaft 1, and the bolts 21 are tightened. At this time, the pressure between the shaping block 12 and the compacting block 2 compacts the carbon fiber filaments and presses the carbon fiber filaments into the shaping groove 13 on the surface of the shaping block 12.

[0032] Then the compacting block 2 is removed, and the carbon fiber filaments are wound and laid again, and compacted again, and the process is repeated repeatedly to form a thick layer of carbon fiber filaments on the surface of the winding shaft 1 .

[0033] Then all the compacting blocks 2 are removed, and the winding shaft 1 and the carbon fiber filaments are placed together in the mold cavity 33 between the upper mold 31 and the lower mold 32, and the upper mold 31 and the lower mold 32 are controlled to close the mold. During the closing process, the upper mold 31 and the lower mold 32 heat the carbon fiber filaments and form a hot pressing molding.

[0034] During the hot pressing process, a portion of the excess carbon fiber filaments will automatically enter the cutting groove 14, and another portion of the carbon fiber filaments will enter the overflow groove 34 along the overflow seam 35 or the guide hole 36 to achieve storage of excess raw materials.

[0035] After the upper mold 31 and the lower mold 32 are opened, the cooled product is taken out. At this time, the formed product is cut by a cutter, and the cutter is moved in the cutting groove 14. Since a filling block 15 is provided in the cutting groove 14, the cutter will not contact the winding shaft 1, thereby not damaging the winding shaft 1, and ensuring the service life of the winding shaft 1.

[0036] Since the entire winding shaft 1 is not circular, it is equivalent to three structures that can be spliced ​​into a circle extending outward by the same distance along the diameter direction. Therefore, the formed product can be spliced ​​into a circle after cutting to form the overall structure of the support.

[0037] Therefore, by adopting the cooperation of the winding shaft 1, the compacting block 2 and the hot pressing mold 3, the carbon fiber filaments can be wound on the winding shaft 1, and then the carbon fiber filaments are compacted by the compacting block 2, and finally the hot pressing mold 3 is used for hot pressing. Three support flaps can be produced at one time each time, and the three support flaps can form a complete support, thereby realizing the one-time production and processing of the support and improving production efficiency.

[0038] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A production device for armor-piercing projectile sabots, characterized by: include: A winding shaft (1) comprises a core shaft (11) and three shaping blocks (12), wherein the shaping blocks (12) are arranged around the core shaft (11), the outer wall of the shaping block (12) is arranged in an arc shape, and the surface is provided with shaping grooves (13) running through both sides thereof at equal intervals, the center positions of the three shaping blocks (12) are distributed around the center position of the core shaft (11), and the lines connecting the three center points form an equilateral triangle; A compacting block (2) is arranged outside each shaping block (12) and is used to press the wound carbon fiber filaments into the shaping groove (13) on the surface of the winding shaft (1); The hot pressing mold (3) comprises an upper mold (31) and a lower mold (32), and semicircular mold cavities (33) that engage with each other are provided on the sides of the upper mold (31) and the lower mold (32) that are close to each other.

2. The production device for armor-piercing projectile sabot according to claim 1, characterized in that: The outer wall of the core shaft (11) is provided with three cutting grooves (14), the cutting grooves (14) are distributed between two adjacent shaping blocks (12), and filling blocks (15) are provided in the cutting grooves (14).

3. The production device for armor-piercing projectile sabot according to claim 2, characterized in that: Bolts (21) are provided at both ends of the compacting block (2), and screw holes (16) for screwing the bolts (21) are provided at both ends of the shaping block (12).

4. The production device for armor-piercing projectile sabot according to claim 3, characterized in that: Both sides of the compacting block (2) extend to above the cutting groove (14).

5. The production device for armor-piercing projectile sabot according to claim 1, characterized in that: The lower mold (32) is provided with overflow grooves (34) distributed on both sides of the mold cavity (33), and an overflow seam (35) communicating with the overflow grooves (34) and the mold cavity (33) is provided between the upper mold (31) and the lower mold (32).

6. The production device for armor-piercing projectile sabot according to claim 5, characterized in that: The upper mold (31) and the lower mold (32) are both provided with guide holes (36) communicating with the mold cavity (33) and the overflow groove (34), and the guide holes (36) are interlocked and arranged in a circular shape.

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