Safe punching device for special-shaped multiple holes of plastic shell

Abstract

The utility model relates to the field of plastic workpiece machining equipment.The plastic shell special-shaped multi-hole safe punching device comprises a drill floor, an impact mechanism, a vibration mechanism, a displacement mechanism and a machining mechanism, the drill floor comprises a bottom table, a stand column and a lifting table, one end of the stand column is fixed to the bottom table, the lifting table is slidably connected to the stand column, and the impact mechanism is installed on the lifting table; the vibration mechanism is connected to the impact mechanism, the machining mechanism is connected with the vibration mechanism, the impact mechanism is used for driving the machining mechanism to do reciprocating motion in the vertical direction, the vibration mechanism is used for driving the machining mechanism to do forward and reverse reciprocating rotation, and the displacement mechanism is arranged on the stand column and used for driving the lifting table to vertically slide. The special-shaped hole machining device has the effect that the special-shaped hole can be machined in the workpiece.

Description

TECHNICAL FIELD

[0001] The application relates to the field of plastic workpiece processing equipment, in particular to a plastic shell special-shaped multi-hole safe opening device. BACKGROUND

[0002] In the field of equipment manufacturing, it is often necessary to process holes on plastic shells, and existing plastic workpiece processing often uses programming and numerical control processing technology, which is suitable for mass production processing. When the number of plastic workpieces to be processed is small, the use of precision equipment is costly, time-consuming and long.

[0003] The existing plastic workpiece processing equipment comprises a drilling table and a drilling tool, the drilling table comprises a base table, a vertical column and a lifting table, the vertical column is vertically arranged, the bottom of the vertical column is connected with the base table, and the lifting table is slidingly connected with the vertical column. The drilling tool is arranged on the lifting table. When the workpiece is placed on the base table, the lifting table can vertically fall so that the drilling tool abuts against the plastic workpiece. At this time, the drilling tool rotates, and the lifting table continuously falls to achieve the effect of drilling holes on the plastic workpiece.

[0004] The related technical solutions in the above have the following defects: when the drilling tool rotates and processes holes on the workpiece, only circular holes can be processed. When special-shaped holes need to be processed on the workpiece, the drilling tool cannot complete the processing work. Utility model content

[0005] In order to process special-shaped holes on the workpiece, the application provides a plastic shell special-shaped multi-hole safe opening device.

[0006] The plastic shell special-shaped multi-hole safe opening device provided by the application adopts the following technical scheme:

[0007] A plastic shell special-shaped multi-hole safe opening device comprises a drilling table, an impact mechanism, a vibration mechanism, a displacement mechanism and a processing mechanism. The drilling table comprises a base table, a vertical column and a lifting table. One end of the vertical column is fixed on the base table, and the lifting table is slidingly connected with the vertical column. The impact mechanism is installed on the lifting table. The vibration mechanism is connected with the impact mechanism. The processing mechanism is connected with the vibration mechanism. The impact mechanism is used for driving the processing mechanism to reciprocate in the vertical direction. The vibration mechanism is used for driving the processing mechanism to reciprocate in the forward and reverse directions. The displacement mechanism is arranged on the vertical column, and the displacement mechanism is used for driving the lifting table to vertically slide.

[0008] By adopting the technical scheme, the displacement mechanism is arranged on the lifting platform, and a user can control the lifting platform to reciprocate on the stand column through the displacement mechanism; when the plastic workpiece is placed on the bottom platform, the lifting platform can fall and drive the machining mechanism to abut against the surface of the workpiece, thereby achieving the machining effect on the workpiece; the impact mechanism and the vibration mechanism are arranged on the lifting platform, the impact mechanism can drive the machining mechanism to reciprocate in the vertical direction, and the vibration mechanism can drive the machining mechanism to rotate by a certain angle and swing back, the machining mechanism is reciprocated and rotated, friction is generated on the surface of the plastic workpiece, and a hole is ground on the plastic workpiece, even if the surface of the machining mechanism abutting against the plastic workpiece is a special-shaped structure, a special-shaped hole can also be ground on the plastic workpiece.

[0009] Optionally, the impact mechanism comprises a sleeve, a rotating plate, a motor, an impact plate and a return spring, the sleeve is fixed at the lower end of the lifting platform, the length direction of the sleeve is parallel to the stand column, the rotating plate and the impact plate are circular plate structures, the rotating plate and the impact plate are coaxially arranged in the sleeve, the motor is arranged on the lifting platform and is used to drive the rotating plate to rotate, the impact plate is clamped in the sleeve and is used to vertically slide in the sleeve, the return spring is arranged below the impact plate and is used to make the impact plate always abut against the rotating plate, and the vibration mechanism is connected with the impact plate.

[0010] By adopting the technical scheme, the rotating plate and the impact plate are arranged in the sleeve, when the motor drives the rotating plate to rotate, the impact plate can abut against the rotating plate under the action of the return spring, the tooth grooves are arranged on the surfaces of the rotating plate and the impact plate and are mutually engaged, when the rotating plate rotates, the impact plate is clamped in the sleeve and remains fixed, the rotating plate rotates and drives the impact plate to move through the tooth grooves, the impact plate can slide in the vertical direction, as the rotating plate continues to rotate, the return spring drives the impact plate to move upward to the position where the impact plate is clamped with the surface of the rotating plate, the motor drives the rotating plate to continuously rotate, the impact plate can continuously vibrate in the vertical direction, and the machining mechanism is vibrated.

[0011] Optionally, the vibration mechanism comprises a mounting seat, a swinging piece and an eccentric cam, the mounting seat is fixedly connected with the impact plate, one end of the swinging piece is rotationally connected to the mounting seat, the other end of the swinging piece is provided with an elliptical groove, the eccentric cam is rotationally connected in the elliptical groove, and the machining mechanism is connected with the swinging piece.

[0012] By adopting the technical scheme, the swinging piece is arranged on the mounting seat and can be driven by the eccentric cam to rotate by a certain angle and swing back on the mounting seat, the machining mechanism is arranged on the swinging piece, the machining mechanism can periodically reciprocate and swing, friction is generated on the surface of the workpiece, a hole is rubbed out on the surface of the workpiece, the mounting seat is connected with the impact plate, the machining mechanism can vibrate in the vertical direction when the machining mechanism rotates, the eccentric cam slides in the vertical direction relative to the swinging piece, and the impact mechanism and the vibration mechanism remain connected.

[0013] Optionally, the eccentric cam is provided with a transmission shaft, the transmission shaft is vertically arranged, the transmission shaft penetrates the mounting seat and the impact plate and is coaxially connected with the rotating plate, and the rotating plate drives the eccentric cam to rotate through the transmission shaft.

[0014] By adopting the above technical scheme, the transmission shaft is connected with the rotating plate, the eccentric cam can be driven to rotate when the rotating plate is driven to rotate by the motor, the motor can drive the machining mechanism to periodically vibrate and rotate in the vertical direction at the same time, and the structure is simplified.

[0015] Optionally, the machining mechanism comprises an abutting piece and a positioning needle, the abutting piece is detachably connected to the vibration mechanism, and the positioning needle is arranged on the lower end surface of the abutting piece.

[0016] By adopting the above technical scheme, the positioning needle is arranged on the surface of the abutting piece, the user can determine the machining position of the abutting piece according to the position of the positioning needle, the position of the plastic workpiece can be adjusted by the user, and the machining position precision of the abutting piece on the plastic workpiece is high.

[0017] Optionally, the abutting piece comprises a driving abutting piece and a driven abutting piece, the driving abutting piece is mounted on the vibration mechanism, the driven abutting piece is rotationally connected to the vibration mechanism, and the driving abutting piece and the driven abutting piece are in transmission connection.

[0018] By adopting the above technical scheme, the driving abutting piece drives the driven abutting piece to rotate when the driving abutting piece periodically rotates, and the driven abutting piece can machine holes on the surface of the workpiece, the user can machine multiple holes on the plastic workpiece through the driving abutting piece and the driven abutting piece, and the work efficiency is further improved.

[0019] Optionally, a driving rod is arranged between the driving abutting piece and the driven abutting piece, one end of the driving rod is rotationally connected to the driving abutting piece, the other end of the driving rod is rotationally connected to the driven abutting piece, and a plurality of driving rods are arranged on each driven abutting piece.

[0020] By adopting the above technical scheme, the driving rod is arranged on the driving abutting piece and the driven abutting piece, the driving rod has a transmission effect, the driving abutting piece and the driven abutting piece can keep synchronous movement when the driving abutting piece reciprocates at high speed, the machining quality of the driving abutting piece and the driven abutting piece is similar, multiple holes can be machined on the plastic workpiece, and the machining quality of each hole is good.

[0021] Optionally, the displacement mechanism comprises a rack, a gear and a rocker, the rack is fixed on the lifting platform, the gear is rotationally connected to the stand column, the gear is engaged with the rack, and the rocker is rotationally connected to the stand column and coaxially connected with the gear.

[0022] By adopting the above technical scheme, the gear is arranged on the stand column, when the user rotates the rocker, the gear can rotate, and then the rack moves back and forth in the vertical direction, the rack can drive the lifting platform to move back and forth in the vertical direction, and the effect of controlling the vertical sliding of the lifting platform is achieved.

[0023] In summary, the beneficial technical effects of the present application are:

[0024] 1. By arranging the displacement mechanism on the lifting platform, the user can control the lifting platform to slide back and forth on the stand column through the displacement mechanism, when the plastic workpiece is placed on the base platform, the lifting platform can fall and drive the machining mechanism to abut against the surface of the workpiece, and the machining effect on the workpiece is achieved. By arranging the impact mechanism and the vibration mechanism on the lifting platform, the impact mechanism can drive the machining mechanism to slide back and forth in the vertical direction, and the vibration mechanism can drive the machining mechanism to rotate by a certain angle and rotate back. By the back-and-forth rotation of the machining mechanism, friction is generated on the surface of the plastic workpiece, and then holes are ground on the plastic workpiece. Even if the surface of the machining mechanism abutting against the plastic workpiece is a special-shaped structure, special-shaped holes can also be ground on the plastic workpiece.

[0025] 2. By arranging the rotating plate and the impact plate in the sleeve, when the motor drives the rotating plate to rotate, the impact plate can abut against the rotating plate under the action of the return spring. The rotating plate and the impact plate are both provided with tooth grooves on the surfaces and are engaged with each other. When the rotating plate rotates, the impact plate is clamped in the sleeve and remains fixed. The rotating plate rotates and drives the impact plate through the tooth grooves, so that the impact plate can slide in the vertical direction. As the rotating plate continues to rotate, the return spring can drive the impact plate to rise to the position clamped with the surface of the rotating plate. The continuous rotation of the rotating plate driven by the motor can make the impact plate vibrate continuously in the vertical direction, and the effect of driving the machining mechanism to vibrate is achieved.

[0026] 3. By arranging the driving abutting piece on the swing piece, the driving abutting piece can be driven by the swing piece. When the driving abutting piece rotates periodically, it can drive the driven abutting piece to rotate, and then the driven abutting piece can process holes on the surface of the workpiece. The user can process multiple holes on the plastic workpiece through the driving abutting piece and the driven abutting piece, and the work efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0028] Figure 2 is a schematic diagram of the machining mechanism of the embodiment of the present application.

[0029] Figure 3 is a sectional view of the impact mechanism of the embodiment of the present application.

[0030] Figure 4 is a structural schematic view of the rotating plate and eccentric cam of the embodiment of the present application.

[0031] Figure 5 is a schematic view of the connection relationship between the impact plate and the sleeve of the embodiment of the present application.

[0032] Figure 6 is a structural schematic view of the vibration mechanism of the embodiment of the present application.

[0033] Figure 7 is a structural schematic view of the abutting member of the embodiment of the present application.

[0034] Reference signs: 1, drilling platform; 11, base platform; 12, stand column; 121, clamping strip; 13, lifting platform; 2, impact mechanism; 21, sleeve; 22, rotating plate; 221, tooth groove; 23, motor; 24, impact plate; 241, limiting block; 25, return spring; 3, vibration mechanism; 31, mounting seat; 32, swinging member; 321, elliptical groove; 33, eccentric cam; 34, transmission shaft; 4, displacement mechanism; 41, rack; 42, gear; 43, rocker; 5, processing mechanism; 51, abutting member; 511, driving abutting member; 512, driven abutting member; 513, driving rod; 52, positioning needle. DETAILED DESCRIPTION

[0035] The present application will be further described in detail below with reference to the accompanying drawings.

[0036] The embodiment of the present application discloses a special-shaped multi-hole safety opening device for a plastic shell, referring to Figure 1 , Figure 2 and Figure 3, including a drilling platform 1, an impact mechanism 2, a vibration mechanism 3, a displacement mechanism 4 and a processing mechanism 5, the drilling platform 1 comprising a base platform 11, a stand column 12 and a lifting platform 13, the stand column 12 being fixed at one end on the base platform 11, the base platform 11 being used to be arranged on the ground, the stand column 12 being arranged vertically through the base platform 11, the lifting platform 13 being arranged horizontally, the stand column 12 penetrating through the lifting platform 13 and being in sliding connection with the lifting platform 13. The displacement mechanism 4 is installed on the stand column 12, and the displacement mechanism 4 is used to drive the stand column 12 to vertically reciprocate. The impact mechanism 2, the vibration mechanism 3, the displacement mechanism 4 and the processing mechanism 5 are all arranged above the base platform 11. The impact mechanism 2 is installed on the lifting platform 13, the vibration mechanism 3 is connected with the impact mechanism 2, the processing mechanism 5 is arranged on the vibration mechanism 3, and the user places the workpiece on the base platform 11, and drives the lifting platform 13 to fall through the displacement mechanism 4, so that the processing mechanism 5 can abut against the workpiece, the impact mechanism 2 is used to drive the processing mechanism 5 to reciprocate in the vertical direction, and the vibration mechanism 3 is used to drive the processing mechanism 5 to rotate, so that when the processing mechanism 5 abuts against the plastic workpiece, the processing mechanism 5 can rub on the surface of the plastic workpiece to form a hole, and the effect of processing a hole on the plastic workpiece is achieved.

[0037] With reference to Figure 2 , the stand column 12 is provided with a clamping strip 121, the length direction of the clamping strip 121 is parallel to the length direction of the stand column 12, when the lifting platform 13 is in sliding connection with the stand column 12, the clamping strip 121 plays a guiding role, which can reduce the probability of the lifting platform 13 rotating along the axis of the stand column 12, so that the processing mechanism 5 can vertically fall.

[0038] With reference to Figure 3 , Figure 4 and Figure 5, the impact mechanism 2 includes a sleeve 21, a rotating plate 22, a motor 23, an impact plate 24 and a reset spring 25, the sleeve 21 is installed on the lifting platform 13 near the side surface of the base platform 11, the length direction of the sleeve 21 is parallel to the length direction of the column 12. The rotating plate 22 and the impact plate 24 are coaxially arranged in the sleeve 21, the shell of the motor 23 is fixed on the lifting platform 13, the rotating plate 22 is arranged in the sleeve 21, the motor 23 is used for driving the rotating plate 22 to rotate in the sleeve 21, the impact plate 24 is arranged below the rotating plate 22, a limiting block 241 is arranged on the inner wall of the sleeve 21, the length direction of the limiting block 241 is parallel to the sleeve 21. The edge of the impact plate 24 is provided with a sliding groove, the sliding groove is clamped with the limiting block 241, so that the impact plate 24 can only slide along the length direction of the sleeve 21 in the sleeve 21. The reset spring 25 is arranged below the impact plate 24. The lower end of the reset spring 25 is fixed with the sleeve 21, and the upper end is abutted on the impact plate 24. The rotating plate 22 is provided with a tooth groove 221, the tooth groove 221 is a triangular groove, the tooth groove 221 is equidistantly and spaced apart along the circumferential direction of the rotating plate 22, and the impact plate 24 is provided with a groove corresponding to the tooth groove 221 on the side close to the rotating plate 22. The reset spring 25 can push the impact plate 24, so that the impact plate 24 is always in contact with the rotating plate 22. When the motor 23 drives the rotating plate 22 to rotate, the rotating plate 22 rotates relative to the impact plate 24, at this time, the rotating plate 22 lifts the impact plate 24, so that the impact plate 24 slides in the vertical direction, the rotating plate 22 continues to rotate, the impact plate 24 can move upward under the action of the reset spring 25, with the continuous rotation of the rotating plate 22, the impact plate 24 can continuously slide in the vertical direction, so as to drive the vibration mechanism 3 and the machining mechanism 5 to vertically vibrate.

[0039] With reference to Figure 6 , the vibration mechanism 3 is arranged below the impact plate 24, the vibration mechanism 3 includes a mounting seat 31, a swing piece 32, an eccentric cam 33 and a transmission shaft 34, the mounting seat 31 is fixed with the impact plate 24, the swing piece 32 is rotatably connected to the mounting seat 31, the rotation axis of the swing piece 32 and the mounting seat 31 is vertical, an elliptical groove 321 is arranged on the swing piece 32, and the eccentric cam 33 is arranged in the elliptical groove 321. The transmission shaft 34 is vertically arranged and penetrates the mounting seat 31, the upper end of the transmission shaft 34 penetrates the center of the impact plate 24 and is connected with the center of the rotating plate 22, and the lower end of the transmission shaft 34 is connected with the eccentric cam 33. When the motor 23 drives the rotating plate 22 to rotate, the rotating plate 22 can drive the transmission shaft 34 and the eccentric cam 33 to rotate, the eccentric cam 33 rotates and pushes the swing piece 32, so that the swing piece 32 reciprocatingly swings on the mounting seat 31, the machining mechanism 5 is arranged at the rotating connection position of the swing piece 32 and the mounting seat 31, when the swing piece 32 reciprocatingly swings, the machining mechanism 5 can reciprocatingly rotate on the swing piece 32, so that when the machining mechanism 5 abuts against the plastic workpiece, the machining mechanism 5 can rub with the plastic workpiece, thereby achieving the effect of opening holes on the plastic workpiece.

[0040] Referring to Figure 1 , the displacement mechanism 4 includes a rack 41, a pinion 42 and a rocker 43, the rack 41 is fixed on the lifting platform 13, the length direction of the rack 41 is parallel to the length direction of the stand 12, the pinion 42 is rotationally connected to the stand 12, and the pinion 42 is engaged with the rack 41. The rocker 43 is rotationally connected to the stand 12 and connected with the pinion 42. By pulling the rocker 43, the user can make the pinion 42 rotate, and then make the rack 41 drive the lifting platform 13 to slide in the vertical direction, so as to control the lifting platform 13 to rise and fall vertically. A torsional spring can be arranged at the rotationally connected position of the rocker 43 and the stand 12, so that the rocker 43 can be automatically reset, and then the lifting platform 13 can be automatically lifted after falling.

[0041] Referring to Figure 2 and Figure 7 , the machining mechanism 5 includes an abutting piece 51 and a positioning needle 52. The abutting piece 51 is a cylindrical structure, one end of the abutting piece 51 is connected with the swing piece 32, and the other end is used for abutting on the surface of the workpiece. A cutting grinding head is arranged on the lower bottom surface of the abutting piece 51, and the surface of the cutting grinding head is rough. The user can replace the shape of the cutting grinding head according to the needs, so that different shaped holes can be machined on the plastic workpiece. When the lower bottom surface of the abutting piece 51 abuts and rubs against the plastic workpiece, the abutting piece 51 can grind a hole on the surface of the workpiece. The positioning needle 52 is arranged at the center of the lower end surface of the abutting piece 51, and the positioning needle 52 is inserted into the center of the end surface of the abutting piece 51. The positioning needle 52 is used to indicate the machining position of the abutting piece 51, so as to facilitate the user to set the appropriate position of the workpiece below the abutting piece 51 and machining, and improve the accuracy of the machined hole.

[0042] Referring to Figure 2 and Figure 3 , the abutting piece 51 includes a driving abutting piece 511, a plurality of driven abutting pieces 512 and a plurality of driving rods 513. The driving abutting piece 511 is fixed on the swing piece 32, the plurality of driven abutting pieces 512 are rotationally connected to the mounting seat 31, one end of the driving rod 513 is rotationally connected to the driving abutting piece 511, and the other end is rotationally connected to the driven abutting piece 512. A plurality of driving rods 513 are arranged on each driven abutting piece 512. When the driving abutting piece 511 rotates through the swing piece 32, the driving abutting piece 511 can drive the driven abutting piece 512 to rotate, so as to facilitate the user to machine a plurality of holes on the plastic workpiece.

[0043] The principle of the embodiment of the present application is that the abutting member 51 abuts against the workpiece surface, the lower bottom edge of the abutting member 51 is provided with sawteeth, the sawteeth form a closed figure, the impact mechanism 2 drives the abutting member 51 to reciprocate along the vertical direction, the abutting member 51 continuously applies impact to the workpiece, the vibration mechanism 3 drives the abutting member 51 to swing slightly, so that the abutting member 51 can abut against the workpiece surface and rub, thereby enabling the workpiece surface to grind a special-shaped hole matching the shape of the abutting member 51, and achieving the effect of rubbing and cutting a hole on the workpiece.

[0044] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A safety opening device for irregularly shaped porous plastic shells, characterized in that: The system includes a drilling platform (1), an impact mechanism (2), a vibration mechanism (3), a displacement mechanism (4), and a processing mechanism (5). The drilling platform (1) includes a base (11), a column (12), and a lifting platform (13). One end of the column (12) is fixed on the base (11). The lifting platform (13) is slidably connected to the column (12). The impact mechanism (2) is installed on the lifting platform (13). The vibration mechanism (3) is connected to the impact mechanism (2). The processing mechanism (5) is connected to the vibration mechanism (3). The impact mechanism (2) is used to drive the processing mechanism (5) to move back and forth in the vertical direction. The vibration mechanism (3) is used to drive the processing mechanism (5) to rotate back and forth in the forward and reverse directions. The displacement mechanism (4) is set on the column (12). The displacement mechanism (4) is used to drive the lifting platform (13) to slide vertically.

2. The safety opening device for irregularly shaped porous plastic shell according to claim 1, characterized in that: The impact mechanism (2) includes a sleeve (21), a rotating plate (22), a motor (23), an impact plate (24), and a return spring (25). The sleeve (21) is fixed at the lower end of the lifting platform (13). The length direction of the sleeve (21) is parallel to the column (12). The rotating plate (22) and the impact plate (24) are circular plate structures. The rotating plate (22) and the impact plate (24) are coaxially arranged inside the sleeve (21). The motor (23) is arranged on the lifting platform (13). The motor (23) is used to drive the rotating plate (22) to rotate. The impact plate (24) is snapped into the sleeve (21). The impact plate (24) is used to slide vertically inside the sleeve (21). The return spring (25) is arranged below the impact plate (24). The return spring (25) is used to keep the impact plate (24) abutting against the rotating plate (22). The vibration mechanism (3) is connected to the impact plate (24).

3. The safety opening device for irregularly shaped porous plastic shell according to claim 2, characterized in that: The vibration mechanism (3) includes a mounting base (31), a swing member (32), and an eccentric cam (33). The mounting base (31) is fixedly connected to the impact plate (24). One end of the swing member (32) is rotatably connected to the mounting base (31), and the other end is provided with an elliptical groove (321). The eccentric cam (33) is rotatably connected in the elliptical groove (321). The processing mechanism (5) is connected to the swing member (32).

4. The safety opening device for irregularly shaped porous plastic shell according to claim 3, characterized in that: The eccentric cam (33) is provided with a transmission shaft (34), which is vertically arranged. The transmission shaft (34) passes through the mounting base (31) and the impact plate (24) and is coaxially connected with the rotating plate (22). The rotating plate (22) drives the eccentric cam (33) to rotate through the transmission shaft (34).

5. The safety opening device for irregularly shaped porous plastic shell according to claim 1, characterized in that: The processing mechanism (5) includes an abutment (51) and a positioning pin (52). The abutment (51) is detachably connected to the vibration mechanism (3), and the positioning pin (52) is disposed on the lower end face of the abutment (51).

6. The safety opening device for irregularly shaped porous plastic shell according to claim 5, characterized in that: The abutting member (51) includes an active abutting member (511) and a passive abutting member (512). The active abutting member (511) is mounted on the vibration mechanism (3), and the passive abutting member (512) is rotatably connected to the vibration mechanism (3). The active abutting member (511) and the passive abutting member (512) are connected by transmission.

7. A safety opening device for irregularly shaped porous plastic shells according to claim 6, characterized in that: A drive rod (513) is provided between the active abutment (511) and the driven abutment (512). One end of the drive rod (513) is rotatably connected to the active abutment (511), and the other end is rotatably connected to the driven abutment (512). Each driven abutment (512) is provided with multiple drive rods (513).

8. The safety opening device for irregularly shaped porous plastic shell according to claim 1, characterized in that: The displacement mechanism (4) includes a rack (41), a gear (42) and a rocker arm (43). The rack (41) is fixed on the lifting platform (13), the gear (42) is rotatably connected to the column (12), the gear (42) meshes with the rack (41), and the rocker arm (43) is rotatably connected to the column (12) and coaxially connected with the gear (42).

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