Initiating explosive device closing device

Abstract

The utility model relates to the technical field of initiating explosive device production, in particular to an initiating explosive device closing device. By designing the middle mold sheath structure, the closing-in machining process of the initiating explosive device body is completed in the middle mold sheath, and it is guaranteed that the outer diameter of the product is controlled after closing-in; the middle die sheath is connected with the lifting seat through a floating pin and a second spring structure, and a connecting floating head in threaded rotary connection is arranged between the lifting seat and the second driving mechanism, so that the height of the upper closing-in die can be flexibly adjusted according to the closing-in processing type; by designing the floating demolding assembly, damage to the shell of the initiating explosive device in the ejection process is avoided; by designing a demolding pressing plate structure, horizontal deviation or damage of a rotating disc machine or an assembly line caused by instant tension generated on an initiating explosive device shell and a synthesis middle lower mold in the upward moving process of an upper closing mold and a middle mold sheath is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of initiating explosive device production, in particular to an initiating explosive device necking device. Background Art

[0002] The necking of an initiating explosive device refers to the process of necking the upper end of the shell of the rotary body of the initiating explosive device. At present, the upper end necking of the initiating explosive device shell is mostly manual single-mode semi-automatic necking. To ensure the appearance of the product is beautiful and there are no defects such as cracks in the material after necking, the necking is usually divided into primary necking (shrinking the mouth) and secondary necking (smoothing the mouth). The same bottom die and middle die are used for the two neckings, and only the upper die is replaced. After necking, the necking part of the product will bulge. This is suitable for products with less strict requirements for the outer diameter of the necking part. If the outer diameter of the product is required to be more strict, the middle die or bottom die needs to be changed for the product after primary necking, and the product needs to be withdrawn and re-inserted into the die. The process is complicated and it is difficult to achieve automated production. Moreover, during the necking stamping and demoulding processes, the assembly line or turntable machine will receive a large force, which easily causes the turntable machine or the assembly line carrier to be deformed under the force. Therefore, how to control the outer diameter of the initiating explosive device shell during the necking processing has become an urgent technical problem to be solved. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is: how to control the outer diameter of the initiating explosive device shell during the necking processing.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is:

[0005] An initiating explosive device necking device, comprising:

[0006] Synthetic middle and lower dies arrayed on an assembly line or a turntable machine, and the synthetic middle and lower dies are provided with limiting grooves for placing the initiating explosive device shell in a limited way;

[0007] A necking device body is arranged on the moving path of the synthetic middle and lower dies along with the assembly line or the turntable machine;

[0008] The necking device body includes:

[0009] A frame;

[0010] A lower support rod, which is connected to the frame in a liftable manner, and the lower support rod is located below one of the synthetic middle and lower dies;

[0011] A first driving mechanism, which is connected to the frame, and the first driving mechanism is used to drive the lower support rod to move;

[0012] A lifting seat, which is connected to the frame in a liftable manner;

[0013] A connecting floating head, which is rotatably connected to the upper part of the lifting seat;

[0014] A second driving mechanism, which is connected between the frame and the connecting floating head. The second driving mechanism is threadedly connected to the connecting floating head and is used to drive the connecting floating head together with the lifting seat to move;

[0015] An upper necking die, which is connected to the lower part of the lifting seat. The upper necking die is located above one of the synthetic lower dies, and a vertical first through hole is provided in the middle of the upper necking die;

[0016] A floating demoulding assembly, which includes a moving block, a demoulding rod, a first horizontal slider and a third driving mechanism; the demoulding rod is connected to the lower part of the moving block, and the demoulding rod passes through the first through hole of the upper necking die; the lower part of the moving block is connected to the lifting seat through a vertical first spring, a notch is provided in the upper part of the moving block, a first wedge part is provided in the lower part of the first horizontal slider, and the first wedge part of the first horizontal slider is slidably connected to the notch of the moving block. The third driving mechanism is connected between the lifting seat and the first horizontal slider and is used to drive the first horizontal slider to move;

[0017] A middle die guard plate, a floating pin with a vertical axis is connected to the upper part of the middle die guard plate. The lifting seat is provided with a second through hole with a clearance fit with the floating pin, and the floating pin passes through the second through hole. A convex edge for being erected on the upper part of the second through hole is provided in the upper part of the floating pin; a second spring is sleeved on the floating pin; a conical through hole coaxial with the upper necking die is provided in the middle die guard plate;

[0018] A demoulding pressing plate, which is movably connected to the frame along the horizontal direction. The demoulding pressing plate is located above one of the synthetic lower dies, and a semi-circular arc groove with a clearance fit with the circumferential surface of the initiator shell is provided on the demoulding pressing plate;

[0019] A fourth driving mechanism, which is connected between the frame and the demoulding pressing plate and is used to drive the demoulding pressing plate to move.

[0020] Further, in the above-mentioned initiator necking device structure, the first driving mechanism includes:

[0021] A first telescopic cylinder, the axis of the first telescopic cylinder is horizontal, and the cylinder body of the first telescopic cylinder is connected to the frame;

[0022] A second horizontal slider, which is slidably connected to the frame along the horizontal direction. The second horizontal slider is connected to the piston rod of the first telescopic cylinder. A second wedge part is provided in the upper part of the second horizontal slider, and a third wedge part matching the second wedge part is provided in the lower part of the lower support rod.

[0023] Furthermore, in the structure of the initiator closing device described above, the second driving mechanism includes:

[0024] A second telescopic cylinder, the axial direction of the second telescopic cylinder is the vertical direction, the cylinder body of the second telescopic cylinder is connected to the frame, and the lower end of the piston rod of the second telescopic cylinder is in threaded fit connection with the connecting floating head.

[0025] Furthermore, in the structure of the initiator closing device described above, the third driving mechanism includes:

[0026] A third telescopic cylinder, the axial direction of the third telescopic cylinder is the horizontal direction, the cylinder body of the third telescopic cylinder is connected to the frame, and the piston rod of the third telescopic cylinder is connected to the first horizontal slider.

[0027] Furthermore, in the structure of the initiator closing device described above, the fourth driving mechanism includes:

[0028] A fourth telescopic cylinder, the axial direction of the fourth telescopic cylinder is the horizontal direction, the cylinder body of the fourth telescopic cylinder is connected to the frame, and the piston rod of the fourth telescopic cylinder is connected to the demoulding pressing plate.

[0029] Furthermore, in the structure of the initiator closing device described above, it further includes:

[0030] A vertical guide rail, the vertical guide rail is fixedly connected to the frame, and the lifting seat is slidably connected to the vertical guide rail.

[0031] Furthermore, in the structure of the initiator closing device described above, it further includes:

[0032] A rotary table machine, a plurality of lower synthesis molds are circumferentially and arrayedly connected to the outer extension of the rotary table machine; two limiting grooves are provided on the lower synthesis mold;

[0033] The number of the closing device bodies is 3, which are respectively arranged on the continuous working positions outside the rotary table machine; the 3 closing device bodies are successively the primary closing device body, the first and second closing device body, and the second closing device body along the rotary direction of the rotary table;

[0034] The primary closing device body is provided with two upper closing molds corresponding to the two limiting grooves;

[0035] The first and second closing device body is provided with an upper closing mold matching the first limiting groove of the lower synthesis mold;

[0036] The second closing device body is provided with an upper closing mold matching the second limiting groove of the lower synthesis mold.

[0037] The beneficial effects of the present utility model are as follows: By designing the structure of the middle die sheath, the process of necking the main body of the initiator is completed within the middle die sheath, ensuring that the outer diameter is controlled after the product is necked. The middle die sheath is connected to the lifting seat through the structure of a floating pin and a second spring, and a connecting floating head with a threaded rotational connection is arranged between the lifting seat and the second driving mechanism, facilitating the flexible adjustment of the height of the upper necking die according to the type of necking processing. By designing a floating demolding assembly, damage to the initiator shell during the ejection process is avoided. By designing the structure of the demolding pressing plate, the horizontal offset or damage of the turntable machine or the production line caused by the instantaneous tension on the initiator shell and the combined lower die during the upward movement of the upper necking die and the middle die sheath is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 FIG. is a schematic diagram of the mechanism of an initiator necking device according to a specific embodiment of the present utility model;

[0039] Figure 2 FIG. is a front view of an initiator necking device according to a specific embodiment of the present utility model;

[0040] Figure 3 is Figure 2 the sectional view taken along line A-A of

[0041] Figure 4 is Figure 3 the enlarged view of part B of

[0042] Figure 5 FIG. is a left view of an initiator necking device according to a specific embodiment of the present utility model;

[0043] Figure 6 is Figure 5 the sectional view taken along line C-C of

[0044] Figure 7 is Figure 6 the enlarged view of part D of

[0045] Reference numeral description:

[0046] 1. Frame;

[0047] 2. Lower support rod; 21. Third wedge portion;

[0048] 31. First telescopic cylinder; 32. Second horizontal slider; 33. Second wedge portion;

[0049] 4. Lifting seat; 41. Connecting member; 42. Arc-shaped connecting portion;

[0050] 5. Connecting floating head; 51. Flat groove; 52. Connecting rod; 53. Annular groove;

[0051] 6. Second telescopic cylinder;

[0052] 7. Upper closing die; 71. First through hole;

[0053] 8. Floating demolding assembly; 81. Moving block; 811. Notch; 812. First spring; 82. Demolding rod; 83. First horizontal slider; 831. First wedge part; 84. Third telescopic cylinder;

[0054] 9. Middle die guard plate; 91. Floating pin; 92. Second spring; 93. Tapered through hole;

[0055] 10. Demolding pressure plate; 101. Semi-circular arc groove;

[0056] 11. Fourth telescopic cylinder;

[0057] 12. Vertical guide rail;

[0058] 13. Composite middle and lower die; 131. Limit groove;

[0059] 14. Initiator housing. Specific implementation mode

[0060] To describe in detail the technical content, achieved purpose and effect of the present utility model, the following is described in conjunction with the implementation modes and with reference to the drawings.

[0061] Please refer to Figures 1 to 7 , the specific implementation mode of the present utility model relates to an initiator closing device, including a composite middle and lower die 13 arrayed on a production line or a rotary table machine, and the composite middle and lower die 13 is provided with a limit groove 131 for limiting and placing the initiator housing 14;

[0062] A closing device body is arranged on the path where the composite middle and lower die 13 moves along with the production line or the rotary table machine;

[0063] The closing device body includes:

[0064] Frame 1;

[0065] Lower support rod 2, the lower support rod 2 is connected to the frame 1 in a liftable manner, and the lower support rod 2 is located below one of the composite middle and lower dies 13;

[0066] First driving mechanism, the first driving mechanism is connected to the frame 1, and the first driving mechanism is used to drive the lower support rod 2 to move;

[0067] Lifting seat 4, the lifting seat 4 is connected to the frame 1 in a liftable manner;

[0068] Connecting floating head 5, the connecting floating head 5 is rotatably connected to the upper part of the lifting seat 4;

[0069] The second driving mechanism is connected between the frame 1 and the connecting floating head 5. The second driving mechanism is threadedly connected to the connecting floating head 5 and is used to drive the connecting floating head 5 together with the lifting seat 4 to move;

[0070] The upper closing die 7 is connected to the lower part of the lifting seat 4. The upper closing die 7 is located above one of the combined middle and lower dies 13. A first through hole 71 in the vertical direction is provided in the middle of the upper closing die 7;

[0071] The floating demolding assembly 8 includes a moving block 81, a demolding rod 82, a first horizontal slider 83 and a third driving mechanism; the demolding rod 82 is connected to the lower part of the moving block 81, and the demolding rod 82 passes through the first through hole 71 of the upper closing die 7; the lower part of the moving block 81 is connected to the lifting seat 4 through a first spring 812 in the vertical direction. A notch 811 is provided in the upper part of the moving block 81. A first wedge part 831 is provided in the lower part of the first horizontal slider 83. The first wedge part 831 of the first horizontal slider 83 is slidably connected to the notch 811 of the moving block 81. The third driving mechanism is connected between the lifting seat 4 and the first horizontal slider 83 and is used to drive the first horizontal slider 83 to move;

[0072] The middle die guard plate 9 is connected with a floating pin 91 in the vertical direction at the upper part. The lifting seat 4 is provided with a second through hole that is clearance - fitted with the floating pin 91. The floating pin 91 passes through the second through hole. A convex edge for being erected on the upper part of the second through hole is provided in the upper part of the floating pin 91; a second spring 92 is sleeved on the floating pin 91; the middle die guard plate 9 is provided with a conical through hole 93 that is coaxial with the upper closing die 7;

[0073] The demolding pressing plate 10 is movably connected to the frame 1 in the horizontal direction. The demolding pressing plate 10 is located above one of the combined middle and lower dies 13. The demolding pressing plate 10 is provided with a semi - circular arc groove 101 that is clearance - fitted with the circumferential surface of the initiator housing 14;

[0074] The fourth driving mechanism is connected between the frame 1 and the demolding pressing plate 10 and is used to drive the demolding pressing plate 10 to move;

[0075] The closing method of the initiator closing device includes the following steps:

[0076] S1: Rotate the connecting floating head 5 in advance to adjust the height of the lifting seat 4, and then adjust the upper closing die 7 to an appropriate closing height;

[0077] S2: The initiating explosive device housing 14 is pre-placed in the lower die 13 of the synthesis, with the part of the initiating explosive device housing 14 that needs to be necked facing upwards. The assembly line or turntable machine sends one of the lower dies 13 of the synthesis to the station where the necking device body is located;

[0078] S3: Control the first driving mechanism to drive the lower support rod 2 to rise and abut against the lower part of the lower die 13 of the synthesis;

[0079] S4: Control the second driving mechanism to drive the lifting seat 4 to move downward by a first stroke, so that the middle die guard plate 9 abuts against the upper part of the lower die 13 of the synthesis, covering the initiating explosive device housing 14;

[0080] S5: Control the second driving mechanism to drive the lifting seat 4 to move downward by a second stroke. At this time, the upper necking die 7 moves downward relative to the middle die guard plate 9, squeezing the upper edge of the initiating explosive device housing 14 to achieve the purpose of necking; At this time, the second spring 92 contracts;

[0081] S6: Control the second driving mechanism to drive the lifting seat 4 to move upward by a third stroke, so that the second spring 92 is reset, separating the middle die guard plate 9 from the lower and middle dies of the synthesis. At the same time, control the third driving mechanism to drive the first horizontal slider 83 to move, so that its first wedge part 831 squeezes the notch 811 of the moving block 81, driving the moving block 81 to move downward, and further driving the ejection rod 82 to move downward. At this time, the first spring 812 contracts, ejecting the initiating explosive device housing 14 out of the upper necking die 7 and the middle die guard plate 9;

[0082] S7: Control the fourth driving mechanism to drive the ejection pressure plate 10 to move, so that the semi-circular arc groove 101 of the ejection pressure plate 10 is in clearance fit with the circumferential surface of the initiating explosive device housing 14. At this time, the ejection pressure plate 10 abuts against the upper surface of the lower die 13 of the synthesis;

[0083] S8: Control the second driving mechanism to drive the lifting seat 4 to move upward by a fourth stroke, and control the fourth driving mechanism to drive the first horizontal slider 83 to move, so that the moving block 81 together with the ejection rod 82 moves upward under the action of the first spring 812;

[0084] Repeat S2 - S8.

[0085] In the above embodiments, referring to Figure 1 and Figure 4 , a flat groove 51 for wrench connection and rotation is provided on the side of the connecting floating head 5, a connecting rod 52 is provided at the lower part of the connecting floating head 5, an annular groove 53 is provided on the side of the connecting rod 52, a connecting member 41 is provided at the upper part of the lifting seat 4, and the connecting member 41 is provided with an arc-shaped connecting part 42 that is rotationally matched with the annular groove 53; Before processing, the connecting floating head 5 can be rotated by a wrench to adjust the initial height of the lifting seat 4.

[0086] In the above embodiments, referring to Figure 1, the lifting seat 4 is a rectangular frame structure surrounded by an upper connecting plate, a lower connecting plate and two side plates, and the moving block 81 is arranged inside the rectangular frame;

[0087] In the above embodiments, the slope of the first wedge portion 831 is 15 - 30 degrees.

[0088] In the above embodiments, by designing the structure of the middle die sheath, the necking process of the initiator body is completed inside the middle die sheath, ensuring that the outer diameter is controlled after the product is necked; the middle die sheath is connected to the lifting seat 4 through the structure of the floating pin 91 and the second spring 92, and by setting the connecting floating head 5 with a threaded rotation connection between the lifting seat 4 and the second driving mechanism, it is convenient to flexibly adjust the height of the upper necking die 7 according to the type of necking process; by designing the floating demoulding assembly 8, after the necking is completed, when the second driving mechanism drives the lifting seat 4 to rise, the first wedge portion 831 of the first horizontal slider 83 presses the moving block 81 and the demoulding rod 82 downward, and the demoulding rod 82 is used to eject the initiator shell 14 remaining in the upper necking die 7 and the middle die sheath, preventing the initiator shell 14 from being taken out by the upper necking die 7 and the middle die sheath. This transmission structure can make full use of the side space of the lifting seat 4, and the demoulding action can be smoother, avoiding damage to the initiator shell 14 during the ejection process; by designing the structure of the demoulding pressing plate 10, when the upper necking die 7 completes the necking and moves upward with the lifting seat 4, through the clearance fit between the semi-circular groove 101 of the demoulding pressing plate 10 and the side of the initiator shell 14, and pressing against the upper part of the combined middle and lower die 13, the initiator shell 14 and the combined middle and lower die 13 are limited and protected, avoiding the horizontal offset or damage of the turntable machine or the production line caused by the instantaneous pulling force generated on the initiator shell 14 and the combined middle and lower die 13 during the upward movement of the upper necking die 7 and the middle die sheath. The device and method involved in the present invention realize the unmanned and automated operation of the initiator, achieve the separation of humans and machines, and realize intrinsic safety.

[0089] As a preferred embodiment, the first driving mechanism includes:

[0090] A first telescopic cylinder 31, the axial direction of the first telescopic cylinder 31 is horizontal, and the cylinder body of the first telescopic cylinder 31 is connected to the frame 1;

[0091] A second horizontal slider 32, the second horizontal slider 32 is slidably connected to the frame 1 in the horizontal direction, the second horizontal slider 32 is connected to the piston rod of the first telescopic cylinder 31, and the upper part of the second horizontal slider 32 is provided with a second wedge portion 33, and the lower part of the lower support rod 2 is provided with a third wedge portion 21 matching the second wedge portion 33;

[0092] In the described closing method: S3 specifically is: Control the first telescopic cylinder 31 to drive the second horizontal slider 32 to move in the horizontal direction. Through the extrusion fit between the second wedge part 33 and the third wedge part 21, drive the lower support rod 2 to rise and abut against the lower part of the middle and lower die 13 of the synthesis.

[0093] In the above embodiments, the slope of the second wedge part 33 is 15 - 30 degrees. By designing the cooperation mode of the second wedge part 33 and the third wedge part 21 to drive the lower support rod 2 to eject, this structure makes the movement of the lower support rod 2 smoother, avoids the impact on the middle and lower die 13 of the synthesis caused by the too-fast ejection of the lower support rod 2, which affects the stability of the rotary table machine or the production line, and can also make full use of the side space of the frame 1.

[0094] As a preferred embodiment, the second driving mechanism includes:

[0095] A second telescopic cylinder 6, the axis of the second telescopic cylinder 6 is in the vertical direction, the cylinder body of the second telescopic cylinder 6 is connected to the frame 1, and the lower end of the piston rod of the second telescopic cylinder 6 is in threaded fit connection with the connecting floating head 5.

[0096] As a preferred embodiment, the third driving mechanism includes:

[0097] A third telescopic cylinder 84, the axis of the third telescopic cylinder 84 is in the horizontal direction, the cylinder body of the third telescopic cylinder 84 is connected to the frame 1, and the piston rod of the third telescopic cylinder 84 is connected to the first horizontal slider 83.

[0098] As a preferred embodiment, the fourth driving mechanism includes:

[0099] A fourth telescopic cylinder 11, the axis of the fourth telescopic cylinder 11 is in the horizontal direction, the cylinder body of the fourth telescopic cylinder 11 is connected to the frame 1, and the piston rod of the fourth telescopic cylinder 11 is connected to the demolding pressing plate 10.

[0100] As a preferred embodiment, the closing device further includes:

[0101] A vertical guide rail 12, the vertical guide rail 12 is fixedly connected to the frame 1, and the lifting seat 4 is slidably connected to the vertical guide rail 12.

[0102] As a preferred embodiment, the closing device further includes:

[0103] A rotary table machine, a plurality of middle and lower dies 13 of the synthesis are connected to the outer extension of the rotary table machine in a circumferential array; the middle and lower die 13 of the synthesis is provided with two limiting grooves 131;

[0104] The number of the closing device bodies is 3, which are respectively arranged on the continuous workstations outside the turntable machine; the 3 closing device bodies are in turn the primary closing device body, the first and second closing device body, and the second closing device body along the rotation direction of the turntable;

[0105] The primary closing device body is provided with two upper closing dies 7 corresponding to the two limiting grooves 131;

[0106] The first and second closing device body is provided with an upper closing die 7 matching the first limiting groove 131 of the synthetic middle and lower die 13;

[0107] The second closing device body is provided with an upper closing die 7 matching the second limiting groove 131 of the synthetic middle and lower die 13;

[0108] In the closing method, when one of the synthetic middle and lower dies 13 of the turntable machine moves to the workstation where the primary closing device body is located, the primary closing device body simultaneously completes the primary closing of S1-S8 for the two initiator housings 14 in the two limiting grooves 131;

[0109] When one of the synthetic middle and lower dies 13 of the turntable machine moves to the workstation where the first and second closing device body is located, the first and second closing device body completes the secondary closing of S1-S8 for the one initiator housing 14 in the first limiting groove 131;

[0110] When one of the synthetic middle and lower dies 13 of the turntable machine moves to the workstation where the second and second closing device body is located, the second and second closing device body completes the secondary closing of S1-S8 for the one initiator housing 14 in the second limiting groove 131.

[0111] In the above embodiments, since the pressure requirement for the primary closing in the closing process of the initiator housing 14 is relatively small, two initiator housings 14 can be extruded and closed in one station at a time, while the pressure requirement for the secondary closing is relatively large, and only one initiator housing 14 is extruded and closed in one station. The secondary closing of the two initiator housings 14 is completed through two stations, which can further improve the production efficiency. The height of the initiator housing 14 after closing is controlled within 22.3-22.3mm, the height is stable, the outer diameter is controlled by the middle die sheath, the diameter is qualified, the overall beat can be controlled within 6s, the hourly production capacity can reach 1200 pieces, and the whole equipment can achieve human-machine isolation with low failure rate.

[0112] In the above embodiments, the remaining workstations of the turntable machine further include a material detection workstation, a medicine block feeding workstation, a cover sheet feeding workstation, a detection workstation, etc.

[0113] As a preferred embodiment, the synthetic middle and lower die 13 is detachably connected to the turntable machine.

[0114] In the above embodiments, the detonator housing 14 of different specifications can be flexibly disassembled and replaced on the turntable machine.

[0115] The above are only the embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An initiating explosive device closing device, characterized in that, Comprising: The synthetic lower and middle molds distributed in an array on a pipeline or a turntable machine, and the synthetic lower and middle molds are provided with limiting grooves for limiting and placing the initiator shells; A necking device body is arranged on the path where the synthetic lower and middle molds move along with the pipeline or the turntable machine; The necking device body includes: A frame; A lower support rod, which is connected to the frame in a liftable manner, and the lower support rod is located below one of the synthetic lower and middle molds; A first driving mechanism, which is connected to the frame, and the first driving mechanism is used to drive the lower support rod to move; A lifting seat, which is connected to the frame in a liftable manner; A connecting floating head, which is rotatably connected to the upper part of the lifting seat; A second driving mechanism, which is connected between the frame and the connecting floating head, and the second driving mechanism is threadedly connected to the connecting floating head and is used to drive the connecting floating head and the lifting seat to move; An upper necking mold, which is connected to the lower part of the lifting seat, and the upper necking mold is located above one of the synthetic lower and middle molds. A first through hole in the vertical direction is provided in the middle of the upper necking mold; A floating demolding assembly, which includes a moving block, a demolding rod, a first horizontal slider and a third driving mechanism; the demolding rod is connected to the lower part of the moving block, and the demolding rod passes through the first through hole of the upper necking mold; the lower part of the moving block is connected to the lifting seat through a first spring in the vertical direction. A notch is provided in the upper part of the moving block, a first wedge part is provided in the lower part of the first horizontal slider, and the first wedge part of the first horizontal slider is slidably and cooperatively connected with the notch of the moving block. The third driving mechanism is connected between the lifting seat and the first horizontal slider and is used to drive the first horizontal slider to move; A middle mold guard plate, a floating pin with a vertical axis is connected to the upper part of the middle mold guard plate. The lifting seat is provided with a second through hole with a clearance fit with the floating pin, and the floating pin passes through the second through hole. A convex edge for being erected on the upper part of the second through hole is provided in the upper part of the floating pin; a second spring is sleeved on the floating pin; a conical through hole coaxial with the upper necking mold is provided in the middle mold guard plate; A demolding pressing plate, which is connected to the frame in a horizontally movable manner, and the demolding pressing plate is located above one of the synthetic lower and middle molds. A semi-circular arc groove with a clearance fit with the circumferential surface of the initiator shell is provided in the demolding pressing plate; A fourth driving mechanism, which is connected between the frame and the demolding pressing plate and is used to drive the demolding pressing plate to move.

2. The explosive device necking device according to claim 1, characterized in that, The first driving mechanism includes: A first telescopic cylinder, the axial direction of the first telescopic cylinder is horizontal, and the cylinder body of the first telescopic cylinder is connected to the frame; A second horizontal slider, which is slidably connected to the frame in the horizontal direction, the second horizontal slider is connected to the piston rod of the first telescopic cylinder, and a second wedge part is provided in the upper part of the second horizontal slider. A third wedge part matched with the second wedge part is provided in the lower part of the lower support rod.

3. The explosive device closing device according to claim 1, characterized in that, The second driving mechanism includes: A second telescopic cylinder, the axial direction of the second telescopic cylinder is vertical, the cylinder body of the second telescopic cylinder is connected to the frame, and the lower end of the piston rod of the second telescopic cylinder is in threaded fit with the connecting floating head.

4. The explosive device closing device according to claim 1, characterized in that, The third driving mechanism includes: A third telescopic cylinder, the axial direction of the third telescopic cylinder is horizontal, the cylinder body of the third telescopic cylinder is connected to the frame, and the piston rod of the third telescopic cylinder is connected to the first horizontal slider.

5. The explosive device closing device according to claim 1, characterized in that, The fourth driving mechanism includes: A fourth telescopic cylinder, the axial direction of the fourth telescopic cylinder is horizontal, the cylinder body of the fourth telescopic cylinder is connected to the frame, and the piston rod of the fourth telescopic cylinder is connected to the demolding pressing plate.

6. The explosive device closing device according to claim 1, wherein It further includes: A vertical guide rail, the vertical guide rail is fixedly connected to the frame, and the lifting seat is slidably connected to the vertical guide rail.

7. The explosive device closing device according to claim 1, characterized in that It further includes: A rotary table machine, a plurality of lower molds for synthesis are connected to the outer extension of the rotary table machine in a circular array; two limiting grooves are provided on the lower molds for synthesis. The number of the closing device bodies is 3, which are respectively arranged on the continuous workstations outside the rotary table machine; the 3 closing device bodies are successively the primary closing device body, the first and secondary closing device body, and the second closing device body along the rotary direction of the rotary table. The primary closing device body is provided with two upper closing molds corresponding to the two limiting grooves. The first and secondary closing device body is provided with an upper closing mold matching the first limiting groove of the lower mold for synthesis. The second closing device body is provided with an upper closing mold matching the second limiting groove of the lower mold for synthesis.

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