A wing mold for adjusting the distance between positioning blocks

Abstract

The present application relates to the technical field of fin mold, and discloses a fin mold capable of adjusting the spacing of positioning blocks, which comprises a base, a lower mold assembly is fixedly installed at the top of the base, an upper mold assembly is fixedly installed at the bottom of a driving assembly, and an adjusting assembly is movably connected inside the upper mold assembly along the length direction of the upper mold assembly. By holding the two pinch parts, the assembly of the friction plate and the push handle is moved downwards away from the inner wall of the arc-shaped groove opening, the pusher is pushed to rotate, the rotating disc is driven to rotate, the two sliding rods are moved away from each other through the push rod, the U-shaped insertion strip and the forming column II are moved away from each other through the connecting action of the connecting rod, so that the spacing between the forming column I and the forming column II is increased, the spacing between the forming column I and the forming column II is indicated by the sliding of the indicating needle on the scale on the top of the upper mold plate, and the spacing between the forming column I and the forming column II is adjusted, so that the fin is formed at one time and the spacing between the two through holes is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fin molds, in particular to a fin mold capable of adjusting the distance between positioning blocks. BACKGROUND

[0002] In order to make the projectile more stable during flight, controllable inclined fins are arranged at the tail of the projectile to guide the flight direction of the projectile. Common fins are made of alloy, and now more and more composite materials are used. The fin is composed of a main beam, a counterweight strip, an adapter seat, a joint and a skin. When processing, it is formed by pouring through a mold, which is one-time forming and has high processing efficiency.

[0003] When the fin is formed by pouring, a plug post in the mold is needed to form a through hole at both ends of the fin after the fin is formed. However, the distance between the two through holes increases after the fin is formed, and the fin cannot be placed in the mold at this time, so the distance between the two through holes cannot be adjusted again, and changing the size of the mold will increase the processing cost of the fin, so further improvement is needed. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a fin mold capable of adjusting the distance between positioning blocks, which has the advantages of conveniently adjusting the position of the mold positioning piece and adjusting the distance between the two through holes, and solves the problem that the positions of the two through holes are fixed after the fin is formed and it is difficult to adjust the positions of the two through holes after the positions of the two through holes increase.

[0005] To achieve the above-mentioned purpose of conveniently adjusting the position of the mold positioning piece and adjusting the distance between the two through holes, the present application provides the following technical scheme: a fin mold capable of adjusting the distance between positioning blocks, comprising a base, a lower mold assembly fixedly installed at the top of the base, a material removal assembly movably connected inside the lower mold assembly, a support frame fixedly installed at the rear side of the base, a driving assembly fixedly penetrated through the top of the support frame, an upper mold assembly fixedly installed at the bottom of the driving assembly, an adjusting assembly movably connected inside the upper mold assembly along the length direction thereof, a limiting assembly movably connected to the front side of the upper mold assembly, and the limiting assembly abutting against the front side of the adjusting assembly.

[0006] Preferably, the lower mold assembly comprises a base fixedly installed at the top of the base, a lower mold plate fixedly installed at the top of the base, a forming groove opened at the top of the lower mold plate, and a plug slot opened at both ends of the lower mold plate and communicated with the forming groove.

[0007] Preferably, the material returning assembly comprises a material returning plate slidingly connected in the lower die plate, the lower die plate is provided with a slot at the bottom wall of the forming groove corresponding to the material returning plate, the bottom of the material returning plate is fixedly provided with a connecting seat, the middle of the material returning plate and the connecting seat assembly is provided with an injection pipe penetratingly, the bottom of the connecting seat is fixedly provided with a spring one between the slot bottom wall of the lower die plate.

[0008] Preferably, the driving assembly comprises a hydraulic cylinder fixedly installed at the top of the support frame, the bottom output end of the hydraulic cylinder is fixedly provided with a supporting plate, the four corners of the supporting plate are slidingly connected with guide rods, the upper die assembly is fixedly installed at the bottom of the guide rod, the outer side of the guide rod is sleeved with a spring two, the spring two is fixedly installed between the supporting plate and the upper die assembly.

[0009] Preferably, the upper die assembly comprises an upper die plate fixedly installed at the bottom end of the guide rod and the spring two, the bottom of the upper die plate is fixedly provided with a mold core, the side of the mold core is provided with a cross-shaped sliding groove penetratingly, the cross-shaped sliding groove is arranged along the length of the mold core, the U-shaped plug is inserted in the cross-shaped sliding groove, the middle of the U-shaped plug is inserted with a trapezoidal plug, the two sides of the U-shaped plug are provided with a fillet, the two side walls of the cross-shaped sliding groove are provided with a fillet groove matched with the side fillet of the U-shaped plug, the cross section of the trapezoidal plug is inverted trapezoidal, the opposite side of the two branches of the U-shaped plug is matched with the two sides of the trapezoidal plug, the bottom of one of the two branches of the U-shaped plug is fixedly provided with a forming column one, the bottom of the end away from the forming column one of the trapezoidal plug is fixedly provided with a forming column two.

[0010] Preferably, the mold core is inserted in the forming groove, and the wing piece forming cavity is formed between the mold core and the bottom wall of the forming groove, the U-shaped plug is inserted in the plug slot, the forming column one and the forming column two abut at the top of the material returning plate.

[0011] Preferably, the adjusting assembly comprises a rotating disc rotatingly connected in the upper die plate, two push rods are arrayed on the circumferential surface of the rotating disc, the push rod is rotatingly connected with the rotating disc, the other end of the push rod is hingedly provided with a sliding strip, the top of the sliding strip is fixedly provided with a sliding block, the top of the sliding block is fixedly provided with an indicating needle corresponding to the forming column one and the forming column two, the other end of the sliding strip is fixedly provided with a connecting rod, the two connecting rods are respectively fixedly installed at the top of the U-shaped plug and the trapezoidal plug, the upper die plate is provided with an installation cavity, the rotating disc, the push rod and the sliding strip are arranged in the installation cavity, the sliding block penetrates through the installation cavity, the indicating needle is slidingly connected at the top of the upper die plate, the top of the upper die plate is provided with a scale along the length direction thereof, the indicating needle tip points to the scale, the top of the rotating disc is fixedly provided with a push piece, the front end of the push piece is inserted with a push handle, the top end of the push handle and the top of the push piece are fixedly provided with a spring three.

[0012] Preferably, the bottom end of the handle is fixedly provided with a friction plate, the top of the upper mold plate is provided with an arc-shaped slot, the internal width of the arc-shaped slot is equal to the diameter of the friction plate, the width of the opening of the arc-shaped slot is equal to the diameter of the handle, and the front side of the pushing piece and the top of the handle are both fixedly provided with a holding part.

[0013] Preferably, the limiting assembly comprises an arc-shaped plate inserted into the front side of the upper mold plate, both ends of the arc-shaped plate are fixedly provided with clamping pieces, the front side of the upper mold plate is provided with a movable slot in communication with the mounting cavity, the end of the arc-shaped plate and the clamping pieces are inserted into the movable slot, the middle part of the arc-shaped plate is fixedly provided with a positioning ring, the cross section of the positioning ring is L-shaped, a knob is rotatably connected to the surface of the positioning ring, a threaded rod penetrates through the middle part of the arc-shaped plate and the knob, and the threaded rod is fixedly arranged on the front side of the upper mold plate; a threaded hole matched with the threaded rod is formed in the center of the knob.

[0014] Beneficial effects

[0015] Compared with the prior art, the present application provides a wing piece mold capable of adjusting the distance between positioning blocks, which has the following beneficial effects:

[0016] 1. The wing piece mold capable of adjusting the distance between positioning blocks, by holding the two holding parts, the assembly of the friction plate and the handle is moved downward and away from the inner wall of the opening of the arc-shaped slot, the pushing piece is pushed to rotate, the rotating disc is driven to rotate, the two sliding bars are moved away from each other by the pushing rod, the U-shaped insertion bar and the forming column II are moved away from each other by the connecting action of the connecting rod, so as to increase the distance between the forming column I and the forming column II, and the distance between the forming column I and the forming column II is indicated by the sliding of the indicating needle on the top scale of the upper mold plate; the two holding parts are released, the friction plate is tightly attached to the inner wall of the opening of the arc-shaped slot under the elastic action of the spring III, the current position of the handle is fixed, the knob is reversely rotated, the arc-shaped plate and the clamping pieces are moved backward and clamped on the surface of the sliding bar, and the current position of the sliding bar is fixed, so that the distance between the forming column I and the forming column II is limited. Thus, the distance between the forming column I and the forming column II is adjusted, the wing piece is formed at one time, and the distance between the two through holes is increased.

[0017] 2. The wing piece mold capable of adjusting the distance between positioning blocks, by the elongation of the output end of the hydraulic cylinder, the supporting plate and the upper mold plate are moved downward, the mold core is inserted into the inside of the forming groove, the forming column I and the forming column II push the material return plate into the insertion slot of the lower mold plate, so that the mold core and the bottom wall of the forming groove form a forming cavity, the forming column I and the forming column II are inserted into the forming cavity, molten raw materials are input into the forming cavity through the injection pipe, and the wing piece is formed after the raw materials are cooled; after the output end of the hydraulic cylinder is contracted, the mold core is pulled out of the forming groove, and the assembly of the material return plate and the connecting seat is moved upward under the elastic action of the spring I, so as to push out the formed wing piece in the forming groove. Thus, the effect of automatic material return after the wing piece is formed is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective structural schematic view of a wing piece mold for adjusting the distance between positioning blocks according to the present application;

[0019] Figure 2 A perspective assembly structural schematic view of a lower mold assembly and a material withdrawal assembly of a wing piece mold for adjusting the distance between positioning blocks according to the present application;

[0020] Figure 3 A top view structural schematic view of a lower mold assembly of a wing piece mold for adjusting the distance between positioning blocks according to the present application;

[0021] Figure 4 A perspective assembly cut structural schematic view of a lower mold assembly and a material withdrawal assembly of a wing piece mold for adjusting the distance between positioning blocks according to the present application;

[0022] Figure 5 A perspective structural schematic view of a driving assembly of a wing piece mold for adjusting the distance between positioning blocks according to the present application;

[0023] Figure 6 A perspective structural schematic view of an upper mold assembly of a wing piece mold for adjusting the distance between positioning blocks according to the present application;

[0024] Figure 7 A perspective structural schematic view of an upper mold assembly of a wing piece mold for adjusting the distance between positioning blocks according to the present application;

[0025] Figure 8 A perspective structural schematic view of an adjusting assembly of a wing piece mold for adjusting the distance between positioning blocks according to the present application.

[0026] In the figure: 1, base; 2, lower mold assembly; 3, material withdrawal assembly; 4, support frame; 5, driving assembly; 6, upper mold assembly; 7, adjusting assembly; 8, limiting assembly; 21, base; 22, lower mold plate; 23, forming groove; 24, insert slot; 31, material withdrawal plate; 32, connecting seat; 33, material injection pipe; 34, spring one; 51, hydraulic cylinder; 52, supporting plate; 53, guide rod; 54, spring two; 61, upper mold plate; 62, mold core; 63, cross slide; 64, U-shaped insert; 65, trapezoidal insert; 66, forming column one; 67, forming column two; 71, rotating disc; 72, push rod; 73, slide bar; 74, slide block; 75, indicator pin; 76, connecting rod; 77, push piece; 78, push handle; 79, spring three; 781, friction plate; 782, arc-shaped groove; 783, pinch part; 81, arched plate; 82, clamping piece; 83, movable slot; 84, positioning ring; 85, knob; 86, screw rod. DETAILED DESCRIPTION

[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0028] Please refer to Figures 1-2 The wing mold for adjusting the distance between positioning blocks comprises a base 1, a lower mold assembly 2 fixedly installed at the top of the base 1, a material withdrawing assembly 3 movably connected in the lower mold assembly 2, a support frame 4 fixedly installed at the rear side of the base 1, a driving assembly 5 fixedly penetrated through the top of the support frame 4, an upper mold assembly 6 fixedly installed at the bottom of the driving assembly 5, an adjusting assembly 7 movably connected in the inside of the upper mold assembly 6 along the length direction thereof, a limiting assembly 8 movably connected at the front side of the upper mold assembly 6, and the limiting assembly 8 abuts against the front side of the adjusting assembly 7.

[0029] Please refer to Figures 2-4 The lower mold assembly 2 comprises a base 21 fixedly installed at the top of the base 1, and a lower mold plate 22 fixedly installed at the top of the base 21, wherein the top of the lower mold plate 22 is provided with a forming groove 23, and the shape of the forming groove 23 is the same as that of the wing. The both ends of the lower mold plate 22 are provided with plug slot grooves 24 in communication with the forming groove 23. The material withdrawing assembly 3 comprises a material withdrawing plate 31 slidably connected in the lower mold plate 22, and the lower mold plate 22 is provided with a plug groove at the bottom wall of the forming groove 23 corresponding to the material withdrawing plate 31. The bottom of the material withdrawing plate 31 is fixedly installed with a connecting seat 32, and the middle of the assembly of the material withdrawing plate 31 and the connecting seat 32 is penetrated through with an injection pipe 33. The molten metal material is injected into the forming groove 23 through the injection pipe 33 for wing forming. The bottom of the connecting seat 32 is fixedly installed with a spring 34 between the bottom wall of the plug groove of the lower mold plate 22. The material withdrawing plate 31 protrudes from the bottom wall of the forming groove 23 by the elasticity of the spring 34.

[0030] Please refer to Figure 5 The driving assembly 5 comprises a hydraulic cylinder 51 fixedly installed at the top of the support frame 4, and a supporting plate 52 fixedly installed at the bottom output end of the hydraulic cylinder 51. The four corners of the supporting plate 52 are slidably connected with guide rods 53, and the top of the guide rods 53 is provided with a blocking piece to prevent the guide rods 53 from being separated from the supporting plate 52. The upper mold assembly 6 is fixedly installed at the bottom of the guide rods 53, and the outside of the guide rods 53 is sleeved with a spring 54 fixedly installed between the supporting plate 52 and the upper mold assembly 6.

[0031] Please refer to Figures 5-7The upper die assembly 6 comprises an upper die plate 61 fixedly installed at the bottom end of the guide rod 53 and the spring 54, and a mold core 62 fixedly installed at the bottom of the upper die plate 61. The mold core 62 is inserted into the forming groove 23, and a fin forming cavity is formed between the mold core 62 and the bottom wall of the forming groove 23. A cross-shaped sliding groove 63 is formed through the side surface of the mold core 62 and is arranged along the length of the mold core 62. A U-shaped insertion strip 64 is inserted into the cross-shaped sliding groove 63. A trapezoidal insertion strip 65 is inserted into the middle of the U-shaped insertion strip 64. The two sides of the U-shaped insertion strip 64 are provided with insertion strips. The two side walls of the cross-shaped sliding groove 63 are provided with insertion grooves matched with the side insertion strips of the U-shaped insertion strip 64. The bottom wall of the insertion strip groove 24 is provided with a flange matched with the U-shaped insertion strip 64, which abuts against the bottom of the U-shaped insertion strip 64, so that the U-shaped insertion strip 64 is stably arranged in the insertion strip groove 24. The cross section of the trapezoidal insertion strip 65 is inverted trapezoidal. The two branches of the U-shaped insertion strip 64 are matched with the two sides of the trapezoidal insertion strip 65. The bottom of one branch of the U-shaped insertion strip 64 is fixedly installed with a forming column 66. The bottom of the end away from the forming column 66 of the trapezoidal insertion strip 65 is fixedly installed with a forming column 67. The U-shaped insertion strip 64 is inserted into the insertion strip groove 24. The forming column 66 and the forming column 67 abut against the top of the material return plate 31. When the mold core 62 is inserted into the insertion strip groove 24, the forming column 66 and the forming column 67 push the material return plate 31 into the insertion groove of the lower die plate 22, and the material return plate 31 is flush with the bottom wall of the forming groove 23.

[0032] Please refer to Figure 8 The adjusting assembly 7 comprises a rotating disc 71 rotatably connected in the upper die plate 61. Two push rods 72 are arranged on the circumferential surface of the rotating disc 71. The push rods 72 are rotatably connected with the rotating disc 71. The other end of the push rod 72 is hingedly connected with a sliding strip 73. The sliding strip 73 is fixedly installed with a sliding block 74 at the top. The sliding block 74 is fixedly installed with an indicating needle 75 at the top corresponding to the forming column 66 and the forming column 67. The other end of the sliding strip 73 is fixedly installed with a connecting rod 76 at the bottom. The two connecting rods 76 are fixedly installed at the top of the U-shaped insertion strip 64 and the trapezoidal insertion strip 65, respectively. The upper die plate 61 is provided with an installation cavity. The rotating disc 71, the push rod 72 and the sliding strip 73 are arranged in the installation cavity. The width of the left and right parts of the installation cavity is equal to the width of the sliding strip 73, so that the sliding strip 73 is stably and slidably connected in the installation cavity. The sliding block 74 penetrates through the installation cavity. The upper die plate 61 is provided with an avoiding groove communicated with the installation cavity at the top. The sliding block 74 is slidably connected in the avoiding groove. The indicating needle 75 is slidably connected at the top of the upper die plate 61. The upper die plate 61 is provided with a scale along the length direction at the top. The tip of the indicating needle 75 points to the scale. The 0 scale of the scale is located at the middle of the upper die plate 61, corresponding to the center of the rotating disc 71. When the rotating disc 71 is rotated, the two sliding strips 73 can be pushed by the push rods 72 to slide towards or away from each other in the installation cavity. The indicating needle 75 slides on the scale corresponding to the positions of the forming column 66 and the forming column 67, so that the distance between the forming column 66 and the forming column 67 can be conveniently observed.

[0033] Please refer to Figure 8 The top of the rotating disc 71 is fixedly provided with a pushing piece 77, the front end of the pushing piece 77 is inserted with a pushing handle 78, and the top end of the pushing handle 78 is fixedly provided with a spring 79 between the top of the pushing piece 77. The bottom end of the pushing handle 78 is fixedly provided with a friction piece 781, and the top of the upper die plate 61 is provided with an arc-shaped groove 782, the inner width of the arc-shaped groove 782 is equal to the diameter of the friction piece 781, the width of the opening of the arc-shaped groove 782 is equal to the diameter of the pushing handle 78, and the front side of the pushing piece 77 and the top of the pushing handle 78 are both fixedly provided with a pinch part 783. By pinching the two pinch parts 783, the friction piece 781 is away from the inner wall of the opening of the arc-shaped groove 782, so that the pushing piece 77 is conveniently rotated.

[0034] Please refer to Figure 8 The limiting assembly 8 comprises an arc-shaped plate 81 inserted on the front side of the upper die plate 61, the two ends of the arc-shaped plate 81 are both fixedly provided with clamping pieces 82, the clamping pieces 82 are attached to the front side of the slide bar 73, the slide bar 73 is clamped and fixed by the cooperation of the push rod 72 and the rear side wall of the installation cavity in the upper die plate 61, the current position of the slide bar 73 is fixed, and thus the position between the first forming column 66 and the second forming column 67 is limited. The front side of the upper die plate 61 is provided with a movable groove 83 in communication with the installation cavity, the end of the arc-shaped plate 81 and the clamping piece 82 are inserted into the movable groove 83, the arc-shaped plate 81 is fixedly provided with a positioning ring 84 in the middle, the positioning ring 84 is L-shaped in cross section, the surface of the positioning ring 84 is rotatably connected with a knob 85, the knob 85 and the arc-shaped plate 81 are both provided with a threaded rod 86 penetrating through the middle, and the threaded rod 86 is fixedly installed on the front side of the upper die plate 61. The center of the knob 85 is provided with a threaded hole matched with the threaded rod 86.

[0035] In use, first, rotate the knob 85 to move the knob 85 and the arc-shaped plate 81 forward along the threaded rod 86, the clamping pieces 82 are away from the slide bar 73, and the slide bar 73 is no longer clamped, so that the position of the slide bar 73 can be moved;

[0036] Then, pinch the two pinch parts 783 to move the assembly of the friction piece 781 and the pushing handle 78 downward away from the inner wall of the opening of the arc-shaped groove 782, and rotate the pushing piece 77 to drive the rotating disc 71 to rotate, and then push the two slide bars 73 to move away from each other by the push rod 72, and then drive the U-shaped insertion bar 64 and the second forming column 67 to move away from each other by the connecting action of the connecting rod 76, so as to increase the distance between the first forming column 66 and the second forming column 67, and slide the indicating needle 75 on the scale on the top of the upper die plate 61 to indicate the distance between the first forming column 66 and the second forming column 67.

[0037] Then, the two pinch parts 783 are loosened, the friction plate 781 is tightly attached to the inner wall at the opening of the arc-shaped groove 782 under the elastic action of the spring three 79, the current position of the push handle 78 is fixed, the knob 85 is reversely rotated, the arched plate 81 and the clamping plate 82 are moved backward, clamped on the surface of the slide bar 73, the current position of the slide bar 73 is fixed, so that the spacing between the forming column one 66 and the forming column two 67 is limited.

[0038] Finally, the output end of the hydraulic cylinder 51 is elongated, the supporting plate 52 and the upper mold plate 61 are moved downward, the mold core 62 is inserted into the inside of the forming groove 23, the forming column one 66 and the forming column two 67 push the material withdrawal plate 31 into the insertion groove of the lower mold plate 22, so that the mold core 62 and the bottom wall of the forming groove 23 form a forming cavity, the forming column one 66 and the forming column two 67 are inserted into the forming cavity, and then the molten raw material is input into the forming cavity through the injection pipe 33, and after the raw material is cooled, the fin is formed.

[0039] When the output end of the hydraulic cylinder 51 is retracted, the mold core 62 is pulled out from the forming groove 23, and the assembly of the material withdrawal plate 31 and the connecting seat 32 moves upward under the elastic action of the spring one 34, and the fin formed in the forming groove 23 is pushed out.

[0040] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wing mold for adjusting the distance between positioning blocks, comprising a base (1), characterized in that: The top of the base (1) is fixedly installed with a lower mold assembly (2), the inside of the lower mold assembly (2) is movably connected with a material returning assembly (3), the rear side of the base (1) is fixedly installed with a support frame (4), the top of the support frame (4) penetrates and is fixedly installed with a driving assembly (5), the bottom of the driving assembly (5) is fixedly installed with an upper mold assembly (6), the inside of the upper mold assembly (6) is movably connected with an adjusting assembly (7) along the length direction thereof, the front side of the upper mold assembly (6) is movably connected with a limiting assembly (8), and the limiting assembly (8) abuts against the front side of the adjusting assembly (7).

2. The winged mold for adjusting the distance between positioning blocks according to claim 1, wherein: The lower mold assembly (2) comprises a base (21) fixedly installed on the top of the base (1), and the top of the base (21) is fixedly installed with a lower mold plate (22).

3. The winged mold for adjusting the spacing of positioning blocks according to claim 1, wherein: The material returning assembly (3) comprises a material returning plate (31) slidably connected in the lower mold plate (22), the bottom of the material returning plate (31) is fixedly installed with a connecting seat (32), the middle part of the material returning plate (31) and the connecting seat (32) assembly is provided with an injection pipe (33), and the bottom of the connecting seat (32) and the bottom wall of the insertion groove formed in the lower mold plate (22) are fixedly installed with a spring (34).

4. The winged die for adjusting the spacing of positioning blocks according to claim 1, wherein: The driving assembly (5) includes a hydraulic cylinder (51) fixedly installed at the top of the support frame (4), a supporting plate (52) fixedly installed at the bottom output end of the hydraulic cylinder (51), four guide rods (53) slidably connected at the four corners of the supporting plate (52), and the upper die assembly (6) fixedly installed at the bottom of the guide rods (53).

5. The winged mold for adjusting the spacing of positioning blocks according to claim 4, wherein: The upper die assembly (6) includes an upper die plate (61) fixedly installed at the bottom end of the guide rods (53) and the spring two (54), a mold core (62) fixedly installed at the bottom of the upper die plate (61), a cross-shaped sliding groove (63) penetratingly formed in the side surface of the mold core (62), the cross-shaped sliding groove (63) being arranged along the length of the mold core (62), a U-shaped insertion strip (64) inserted into the cross-shaped sliding groove (63), a trapezoidal insertion strip (65) inserted into the middle of the U-shaped insertion strip (64), and a groove (66) formed in the bottom of each branch of the U-shaped insertion strip (64).

6. The winged mold for adjusting the spacing of positioning blocks according to claim 5, wherein: The mold core (62) is inserted into the forming groove (23), and a wing piece forming cavity is formed between the mold core (62) and the bottom wall of the forming groove (23), the U-shaped insertion strip (64) is inserted into the insertion strip groove (24), and the forming column one (66) and the forming column two (67) abut against the top of the material returning plate (31).

7. The winged die for adjusting the spacing of positioning blocks according to claim 1, wherein: The indicating needle (75) is slidably connected to the top of the upper die plate (61), the top of the upper die plate (61) is provided with a scale along the length direction thereof, the tip of the indicating needle (75) points to the scale, the top of the rotating disc (71) is fixedly provided with a pushing piece (77), the front end of the pushing piece (77) is inserted with a push handle (78), and the top end of the push handle (78) and the top of the pushing piece (77) are fixedly provided with a spring three (79).

8. The winged mold for adjusting the spacing of positioning blocks according to claim 7, wherein: The bottom end of the push handle (78) is fixedly provided with a friction piece (781), the top of the upper die plate (61) is provided with an arc-shaped groove (782), the inner width of the arc-shaped groove (782) is equal to the diameter of the friction piece (781), the width of the opening of the arc-shaped groove (782) is equal to the diameter of the push handle (78), and the front side of the pushing piece (77) and the top of the push handle (78) are fixedly provided with a pinching portion (783).

9. The winged die for adjusting the distance between positioning blocks according to claim 1, wherein: Said limiting assembly (8) includes the arched plate (81) inserted in the front side of the upper die plate (61), both ends of the arched plate (81) are fixedly installed with the clamping pieces (82), the front side of the upper die plate (61) is provided with the movable slot (83) communicated with the installation cavity, the end of the arched plate (81) and the clamping piece (82) are inserted in the movable slot (83), the middle part of the arached plate (81) is fixedly installed with the positioning ring (84), the cross section of the positioning ring (84) is L-shaped, the surface of the positioning ring (84) is rotatably connected with the knob (85), the middle part of the knob (85) and the arched plate (81) is provided with the threaded rod (86) penetratingly, the threaded rod (86) is fixedly installed on the front side of the upper die plate (61), the center of the knob (85) is provided with the threaded hole matched with the threaded rod (86).

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