Pneumatic auxiliary demolding mechanism of injection mold for automobile

Abstract

The pneumatic auxiliary demolding mechanism of the injection mold for the automobile comprises a bottom mold plate and a bottom mold base, the bottom mold base is fixedly arranged at the top of the bottom mold plate, a mold groove is formed in the middle of the top face of the bottom mold base, a mold core is arranged in the mold groove, and a pneumatic ejection hole is formed in the middle of the mold core. The jacking ring seat is arranged as a main body support during ejection and resetting, so that the jacking ring seat slides randomly when the pneumatic ejector pin seat head and the pneumatic ejector shaft are ejected, and the resetting auxiliary ring sleeve with an arc-shaped outer ring is mounted at the bottom of the jacking ring seat, so that the jacking ring seat quickly moves downwards in the resetting process by virtue of the resetting action of the spring; the pneumatic ejector pin seat head and the pneumatic ejector shaft are driven to move downwards, so that the pneumatic ejector pin seat head is completely filled into the pneumatic ejection hole, the effect that the ejection structure rapidly falls back in the reset process is achieved, the clamping stagnation condition is avoided, efficient and rapid reset is facilitated, rapid and repeated machining is facilitated, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, and in particular to a pneumatic auxiliary demoulding mechanism of an injection mold for an automobile. Background Art

[0002] Injection molds are tools used for mass production of plastic products. They inject the melted plastic material into a metal mold under high pressure, and after cooling and solidification, plastic products with a certain shape are obtained. In the production of automotive parts, injection molds are often required for processing plastic parts. Although the structure of injection molds varies depending on the type of plastic, performance, product shape and structure, and injection machine type, their basic structure is the same. Common ones include the following parts: molding parts, pouring system, guide components, demoulding mechanism, mold temperature control system, and exhaust system. Among them, the molding parts are the parts that give the molding materials shape, structure and size, and are usually composed of cores (punches), concave mold cavities, threaded cores, inserts, etc.; the pouring system is the channel that guides the molten plastic from the injection machine nozzle to the closed mold cavity, and is usually composed of main channels, branch channels, gates and cold wells; the guide components are the guide components that ensure that the movable mold and the fixed mold can be accurately aligned when closed, and are composed of guide pins and guide sleeves; the demolding mechanism is a device that realizes the demolding of plastic parts and pouring systems, such as ejectors, ejector pipes, ejector plates and pneumatic ejectors.

[0003] In the injection molds currently used for automobile parts processing on the market, the pneumatic ejection demoulding mechanism is generally ejected by a single or multiple ejector pins, ejector tubes or ejector plates when in use; however, the existing ejection structure of this type is prone to jamming during the resetting process, that is, it is difficult to reset and restore efficiently and quickly, which is not conducive to rapid resetting for repeated processing, thereby not being conducive to improving processing efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a pneumatically assisted demoulding mechanism for an automobile injection mold, which solves the problem that the ejection structure is prone to getting stuck during the resetting process, which is not conducive to rapid resetting for repeated processing.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A pneumatically assisted demoulding mechanism for an automobile injection mold comprises a bottom mold plate and a bottom mold seat, wherein the bottom mold seat is fixedly arranged on the top of the bottom mold plate, a mold groove is provided in the middle of the top surface of the bottom mold seat, a mold core is provided in the mold groove, a pneumatic ejection hole is provided in the middle of the mold core, a top shaft hole is provided below the pneumatic ejection hole, an air intake ring hole is provided at the bottom of the top shaft hole, a pneumatic chamber is provided at the bottom of the air intake ring hole, a pneumatic input transverse groove is provided through the bottom of the side edge of the bottom mold seat and the inner wall of the pneumatic chamber, a sealing rubber filling transverse sleeve is provided in the pneumatic input transverse groove, and A sealing rubber filling base is provided at the bottom inner side of the pneumatic chamber, a pneumatic input pipe mechanism is provided in the sealing rubber filling base and the sealing rubber filling horizontal sleeve, a pneumatic ejector pin seat head is movably overlapped inside the pneumatic ejector hole, a pneumatic ejector shaft movably plugged into the ejector shaft hole is fixedly connected to the bottom end of the pneumatic ejector pin seat head, a supporting short shaft is fixedly installed at the bottom of the surface of the pneumatic ejector shaft, a lifting ring seat is fixedly installed at the outer end of the supporting short shaft, a reset auxiliary ring sleeve is fixedly connected to the bottom end surface of the lifting ring seat, a spring is fixedly connected to the top edge of the lifting ring seat, and a lap edge ring is fixedly installed at the top end of the spring.

[0007] Preferably, the top surface of the bottom mold base is fixedly installed with limiting guide shafts near the four corners, the top of the bottom mold base is sleeved with an injection mold mechanism through the limiting guide shafts, and the top surface of the injection mold mechanism is fixedly provided with a hydraulic system loading mechanism near both sides.

[0008] Preferably, the injection mold mechanism includes a top mold base, a top mold plate, a limiting guide hole, an injection channel and an injection frame mouth, the top mold base is fixedly arranged on the bottom surface of the top mold plate, the injection frame mouth is arranged at the top of the injection channel, the injection channel is fixedly arranged at the center of the top of the top mold plate, the injection channel is connected with the injection frame mouth, the top mold plate and the inside of the top mold base, the limiting guide hole is longitudinally penetrated and opened near the four corners of the top mold base and the top mold plate, and the limiting guide shaft is slidably inserted in the limiting guide hole.

[0009] Preferably, the hydraulic system loading mechanism includes a hydraulic system connecting angle plate frame, rivets, a reinforced triangular plate and a hydraulic propulsion mechanism assembly loading hole. The bottom plate of the hydraulic system connecting angle plate frame is riveted to the top template by rivets. The reinforced triangular plate is fixedly installed on the inner wall of the hydraulic system connecting angle plate frame. The hydraulic propulsion mechanism assembly loading hole is opened through the side wall of the hydraulic system connecting angle plate frame.

[0010] Preferably, the pneumatic ejection hole is a circular bucket-shaped hole groove with a top diameter larger than its bottom diameter, the ejection shaft hole, the air intake ring hole and the pneumatic chamber are all circular hole groove structures opened longitudinally, and the aperture of the air intake ring hole is larger than the aperture of the ejection shaft hole, the aperture of the pneumatic chamber is larger than the aperture of the air intake ring hole, and the top port diameter of the ejection shaft hole coincides with the bottom port diameter of the pneumatic ejection hole.

[0011] Preferably, the pneumatic input transverse groove includes a pneumatic input channel groove and an interface through groove, the pneumatic input channel groove is connected to the inside of the pneumatic chamber, the interface through groove is connected to the pneumatic input channel groove, and the interface through groove is connected to the bottom of the side of the bottom mold seat, and the sealing rubber filling transverse sleeve is embedded in the inside of the pneumatic input channel groove.

[0012] Preferably, the pneumatic input pipe mechanism includes a pneumatic transport cross pipe, an air inlet pipe nozzle and an intracavity air supply pipe structure, the air inlet pipe nozzle and the intracavity air supply pipe structure are respectively connected to and fixedly connected to the two ends of the pneumatic transport cross pipe, the pneumatic transport cross pipe is embedded in the sealing rubber filling cross sleeve, the air inlet pipe nozzle is located in the interface through groove and protrudes out of the groove body, the intracavity air supply pipe structure is fixedly embedded in the sealing rubber filling base, and the top air outlet of the intracavity air supply pipe structure protrudes out of the sealing rubber filling base, and the end of the pneumatic transport cross pipe that is connected to the intracavity air supply pipe structure is embedded in the sealing rubber filling base.

[0013] Preferably, the air inlet pipe nozzle includes a pneumatic air inlet inlet pipe and a pneumatic air inlet ring nozzle, and the two ends of the pneumatic air inlet inlet pipe are respectively connected to and fixed with the pneumatic conveying cross pipe and the pneumatic air inlet ring nozzle; the intra-cavity air delivery pipe structure includes an air delivery longitudinal pipe nozzle and a closed bottom pipe cover, and the closed bottom pipe cover is closed and fixed to the bottom port of the air delivery longitudinal pipe nozzle, and the pneumatic conveying cross pipe is connected to and fixed on the pipe wall of the air delivery longitudinal pipe nozzle.

[0014] Preferably, a lifting auxiliary groove is provided on the outer edge of the top of the lifting ring seat, and the resetting auxiliary ring sleeve includes an outer arc ring sleeve body and a liner support ring. The bottom end of the liner support ring is fixedly installed on the bottom of the inner wall of the outer arc ring sleeve body, and the outer arc ring sleeve body and the liner support ring are respectively fixedly connected to the outer ring and inner ring of the bottom end of the lifting ring seat, and the outer ring surface of the outer arc ring sleeve is an arc shape.

[0015] Preferably, the number of the supporting short shafts is four, and the four supporting short shafts are equidistantly distributed between the surface of the pneumatic top shaft and the inner wall of the lifting ring seat; the top of the overlapping ring overlaps the top of the inner wall of the pneumatic chamber, and the lifting ring seat and the reset auxiliary ring sleeve are longitudinally slidably connected in the pneumatic chamber.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] A pneumatic auxiliary demoulding mechanism for an automobile injection mold is provided. A lifting ring seat is provided as a main body support during ejection and resetting. When a pneumatic ejector seat and a pneumatic ejector shaft are ejected, the lifting ring seat randomly slides. An outer arc-shaped resetting auxiliary ring sleeve is installed at the bottom of the lifting ring seat. During the resetting process, the lifting ring seat is rapidly moved downward by means of a spring resetting action, driving the pneumatic ejector seat and the pneumatic ejector shaft to move downward, so that the pneumatic ejector seat is completely filled into the pneumatic ejection hole, thereby achieving the effect of rapidly falling back of the ejection structure during the resetting process, avoiding the occurrence of a jam, facilitating efficient and rapid resetting and restoration, facilitating rapid repeated processing, and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the structure of the present invention;

[0019] Figure 2 It is a three-dimensional view of the local structure of the present invention;

[0020] Figure 3 It is a three-dimensional view of another partial structure of the present invention;

[0021] Figure 4 It is a three-dimensional view of another partial structure of the present invention;

[0022] Figure 5 It is an enlarged stereoscopic view of another partial structure of the present invention;

[0023] Figure 6 It is an enlarged stereoscopic view of another partial structure of the present invention;

[0024] Figure 7 It is an enlarged dissected stereoscopic view of another partial structure of the present invention;

[0025] Figure 8 It is a three-dimensional view of the loading mechanism of the hydraulic system of the present invention.

[0026] In the figure: 1. bottom mold plate; 2. bottom mold base; 3. injection mold mechanism; 4. hydraulic system loading mechanism; 5. mold groove; 6. mold core; 7. pneumatic ejection hole; 8. ejector shaft hole; 9. air inlet ring hole; 10. pneumatic chamber; 11. interface through groove; 12. pneumatic input channel groove; 13. sealing rubber filling horizontal sleeve; 14. sealing rubber filling base; 15. intracavity air delivery pipe structure; 16. pneumatic delivery horizontal pipe; 17. air inlet pipe nozzle; 18. pneumatic ejector pin seat; 19. pneumatic ejector shaft; 20. jacking ring seat; 21. jacking auxiliary groove along the groove; 22. reset auxiliary ring sleeve; 23. supporting short shaft; 24. spring; 25. overlapping edge ring; 26. limit guide shaft;

[0027] 301, top mold base; 302, top mold plate; 303, limit guide hole; 304, injection channel; 305, injection frame; 401, hydraulic system connecting angle plate frame; 402, rivet nails; 403, reinforced triangle plate; 404, hydraulic propulsion mechanism assembly hole; 1501, air supply longitudinal pipe nozzle; 1502, closed bottom pipe cover; 1701, pneumatic air inlet pipe; 1702, pneumatic air inlet ring nozzle; 2201, outer arc ring sleeve; 2202, liner support ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example: Refer to Figure 1-8 A pneumatic assisted demoulding mechanism for an automobile injection mold comprises a bottom mold plate 1 and a bottom mold base 2, the bottom mold base 2 is fixedly arranged on the top of the bottom mold plate 1, a mold groove 5 is provided in the middle of the top surface of the bottom mold base 2, a mold core 6 is provided in the mold groove 5, a pneumatic ejection hole 7 is provided in the middle of the mold core 6, a top shaft hole 8 is provided below the pneumatic ejection hole 7, an air intake ring hole 9 is provided at the bottom of the top shaft hole 8, a pneumatic chamber 10 is provided at the bottom of the air intake ring hole 9, a pneumatic input transverse groove is provided through the bottom of the side of the bottom mold base 2 and the inner wall of the pneumatic chamber 10, a sealing rubber filling transverse sleeve 13 is provided in the pneumatic input transverse groove, and the bottom of the inner side of the pneumatic chamber 10 A sealing rubber filling base 14 is provided, and a pneumatic input pipe mechanism is provided in the sealing rubber filling base 14 and the sealing rubber filling horizontal sleeve 13. A pneumatic ejector pin seat 18 is movably overlapped inside the pneumatic ejector hole 7, and the bottom end of the pneumatic ejector pin seat 18 is fixedly connected with a pneumatic ejector shaft 19 movably plugged into the ejector shaft hole 8, and a supporting short shaft 23 is fixedly installed at the bottom of the surface of the pneumatic ejector shaft 19, and a lifting ring seat 20 is fixedly installed at the outer end of the supporting short shaft 23, and a reset auxiliary ring sleeve 22 is fixedly connected to the bottom end surface of the lifting ring seat 20, a spring 24 is fixedly connected to the top edge of the lifting ring seat 20, and a lap edge ring 25 is fixedly installed on the top of the spring 24.

[0030] In the present invention, the top surface of the bottom mold base 2 is fixedly installed with limiting guide shafts 26 near the four corners, the top of the bottom mold base 2 is sleeved with an injection mold mechanism 3 through the limiting guide shafts 26, and the top surface of the injection mold mechanism 3 is fixedly provided with a hydraulic system loading mechanism 4 near both sides;

[0031] More specifically, a limiting guide shaft 26 is provided to serve as a guide component to ensure that the movable mold and the fixed mold can be accurately aligned when they are closed.

[0032] In the present invention, the injection mold mechanism 3 includes a top mold base 301, a top mold plate 302, a limiting guide hole 303, an injection channel 304 and an injection frame 305. The top mold base 301 is fixedly arranged on the bottom surface of the top mold plate 302, the injection frame 305 is arranged at the top of the injection channel 304, the injection channel 304 is fixedly arranged at the center of the top of the top mold plate 302, the injection channel 304 is connected with the injection frame 305 and the top mold plate 302 as well as the inside of the top mold base 301, the limiting guide hole 303 is longitudinally penetrated and opened near the four corners of the top mold base 301 and the top mold plate 302, and the limiting guide shaft 26 is slidably inserted in the limiting guide hole 303;

[0033] More specifically, the injection channel 304 is fixedly disposed at the center of the top of the top mold plate 302 so as to serve as a channel for the molten plastic to be guided from the injection machine nozzle to the closed mold cavity.

[0034] In the present invention, the hydraulic system loading mechanism 4 includes a hydraulic system connecting angle plate frame 401, a rivet nail 402, a reinforced triangular plate 403 and a hydraulic propulsion mechanism assembly loading hole 404. The bottom plate of the hydraulic system connecting angle plate frame 401 is riveted to the top template 302 through the rivet nail 402, the reinforced triangular plate 403 is fixedly installed on the inner wall of the hydraulic system connecting angle plate frame 401, and the hydraulic propulsion mechanism assembly loading hole 404 is opened through the side wall of the hydraulic system connecting angle plate frame 401;

[0035] More specifically, a reinforced triangle plate 403 is fixed on the inner side of the hydraulic system connection angle plate frame 401, so that the strength of the hydraulic system connection angle plate frame 401 is better; and the setting of the hydraulic system connection angle plate frame 401 provides connection to the hydraulic propulsion system, thereby driving the movable mold part of the mold to move.

[0036] In the present invention, the pneumatic ejection hole 7 is a circular bucket-shaped hole groove with a top diameter larger than its bottom diameter, the top shaft hole 8, the air intake ring hole 9 and the pneumatic chamber 10 are all circular hole groove structures opened longitudinally, and the aperture of the air intake ring hole 9 is larger than the aperture of the top shaft hole 8, the aperture of the pneumatic chamber 10 is larger than the aperture of the air intake ring hole 9, and the top end diameter of the top shaft hole 8 coincides with the bottom end diameter of the pneumatic ejection hole 7;

[0037] More specifically, by setting the pneumatic ejection hole 7 as a round bucket-shaped hole groove with a top diameter larger than its bottom diameter, the pneumatic ejection hole 7 can be ejected and reset more smoothly to avoid the problem of jamming.

[0038] In the present invention, the pneumatic input transverse groove includes a pneumatic input channel groove 12 and an interface through groove 11, the pneumatic input channel groove 12 is connected to the inside of the pneumatic chamber 10, the interface through groove 11 is connected to the pneumatic input channel groove 12, and the interface through groove 11 is connected to the bottom of the side of the bottom mold base 2, and the sealing rubber filling transverse sleeve 13 is embedded in the inside of the pneumatic input channel groove 12;

[0039] More specifically, a sealing rubber filling transverse sleeve 13 is provided and embedded in the pneumatic input channel groove 12 so as to serve as a filler, thereby ensuring air tightness.

[0040] In the present invention, the pneumatic input pipe mechanism includes a pneumatic delivery transverse pipe 16, an air inlet pipe nozzle 17 and an intracavity air delivery pipe structure 15, the air inlet pipe nozzle 17 and the intracavity air delivery pipe structure 15 are respectively connected and fixedly connected to the two ends of the pneumatic delivery transverse pipe 16, the pneumatic delivery transverse pipe 16 is embedded in the sealing rubber filling transverse sleeve 13, the air inlet pipe nozzle 17 is located in the interface through groove 11 and protrudes out of the groove body, the intracavity air delivery pipe structure 15 is fixedly embedded in the inside of the sealing rubber filling base 14, and the air outlet at the top of the intracavity air delivery pipe structure 15 protrudes from the sealing rubber filling base 14, and one end of the pneumatic delivery transverse pipe 16 that is connected and connected to the intracavity air delivery pipe structure 15 is embedded in the sealing rubber filling base 14;

[0041] More specifically, a pneumatic delivery cross pipe 16 is provided to communicate with the intracavitary air delivery pipe structure 15 and one end connected thereto is embedded in the sealing rubber filling base 14, so that all structural connection parts are in the sealing rubber filling base 14, further ensuring air tightness.

[0042] In the present invention, the air inlet nozzle 17 includes a pneumatic air inlet inlet pipe 1701 and a pneumatic air inlet ring nozzle 1702, and the two ends of the pneumatic air inlet inlet pipe 1701 are respectively connected and fixed to the pneumatic conveying transverse pipe 16 and the pneumatic air inlet ring nozzle 1702; the intracavitary air delivery pipe structure 15 includes an air delivery longitudinal pipe nozzle 1501 and a closed bottom pipe cover 1502, and the closed bottom pipe cover 1502 is closed and fixed to the bottom port of the air delivery longitudinal pipe nozzle 1501, and the pneumatic conveying transverse pipe 16 is connected and fixed to the pipe wall of the air delivery longitudinal pipe nozzle 1501;

[0043] More specifically, a pneumatic conveying transverse pipe 16 is provided to be connected to and fixed on the pipe wall of the air supply longitudinal nozzle 1501 to provide a connection with external air blowing.

[0044] In the present invention, a lifting auxiliary groove 21 is provided on the outer edge of the top of the lifting ring seat 20, and the reset auxiliary ring sleeve 22 includes an outer arc ring sleeve body 2201 and a liner support ring 2202. The bottom end of the liner support ring 2202 is fixedly installed on the bottom of the inner wall of the outer arc ring sleeve body 2201. The outer arc ring sleeve body 2201 and the liner support ring 2202 are respectively fixedly connected to the outer ring and inner ring of the bottom end of the lifting ring seat 20, and the outer ring surface of the outer arc ring sleeve body 2201 is arc-shaped.

[0045] More specifically, by providing the lifting auxiliary groove along the groove 21, the lifting ring seat 20 can be lifted up very smoothly for demoulding, thereby avoiding the increase of resistance.

[0046] In the present invention, the number of the supporting short shafts 23 is four, and the four supporting short shafts 23 are equidistantly distributed around the surface of the pneumatic jacking shaft 19 and the inner wall of the jacking ring seat 20; the top of the lap ring 25 is lapped with the top of the inner wall of the pneumatic chamber 10, and the jacking ring seat 20 and the reset auxiliary ring sleeve 22 are longitudinally slidably connected in the pneumatic chamber 10;

[0047] More specifically, four supporting short shafts 23 are arranged equidistantly and circumferentially between the surface of the pneumatic lifting shaft 19 and the inner wall of the lifting ring seat 20, so that the four supporting short shafts 23 provide stable support while avoiding excessive blocking of the airflow channel.

[0048] Working principle: When demoulding, air is blown into the pneumatic chamber 10 through the air inlet nozzle 17, the pneumatic conveying transverse pipe 16 and the intracavity air delivery pipe structure 15, so that the air pressure is increased, thereby lifting the pneumatic ejector seat 18 and the pneumatic ejector shaft 19, so that the pneumatic ejector seat 1 ejects the workpiece, and the air flow sprayed from its surface is also rapidly agitated to drive the workpiece to be separated;

[0049] During the reset movement, the air pressure decreases, and the spring 24 begins to reset from the compressed state, which can drive the lifting ring seat 20 and the reset auxiliary ring sleeve 22 to slide down quickly along the pneumatic chamber 10. The arc-shaped design of the outer edge of the reset auxiliary ring sleeve 22 avoids jamming during the reset downward movement, so that the pneumatic ejector seat head 18 can be driven to retract quickly into the pneumatic ejection hole 7.

[0050] In summary, when the pneumatic ejector head 18 and the pneumatic ejector shaft 19 are ejected, the ejector ring seat 20 randomly slides, and an outer arc-shaped reset auxiliary ring sleeve 22 is installed at the bottom of the ejector ring seat 20, so that the ejector ring seat 20 can quickly move downward with the help of the reset action of the spring 24 during the reset process, driving the pneumatic ejector head 18 and the pneumatic ejector shaft 19 to move downward, so that the pneumatic ejector head 18 is completely filled into the pneumatic ejection hole 7, thereby achieving the effect of making the ejection structure fall back quickly during the reset process, avoiding the occurrence of jamming, facilitating efficient and rapid reset and restoration, that is, facilitating rapid repeated processing, improving processing efficiency, and solving the problem that the ejection structure is prone to jamming during the reset process, which is not conducive to rapid reset for repeated processing.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatically assisted demoulding mechanism for an automobile injection mold, comprising a bottom mold plate (1) and a bottom mold base (2), characterized in that: The bottom mold base (2) is fixedly arranged on the top of the bottom mold plate (1), and a mold groove (5) is provided in the middle of the top surface of the bottom mold base (2), a mold core (6) is provided in the mold groove (5), a pneumatic ejection hole (7) is provided in the middle of the mold core (6), a top shaft hole (8) is provided below the pneumatic ejection hole (7), an air intake ring hole (9) is provided at the bottom of the top shaft hole (8), and a pneumatic chamber (10) is provided at the bottom of the air intake ring hole (9), and a pneumatic input transverse groove is provided through the bottom of the side of the bottom mold base (2) and the inner wall of the pneumatic chamber (10), a sealing rubber filling transverse sleeve (13) is provided in the pneumatic input transverse groove, and a sealing rubber filling base (14) is provided at the bottom of the inner side of the pneumatic chamber (10). ), a pneumatic input pipe mechanism is arranged inside the sealing rubber filling base (14) and the sealing rubber filling horizontal sleeve (13), a pneumatic ejector pin seat (18) is movably overlapped inside the pneumatic ejector hole (7), the bottom end of the pneumatic ejector pin seat (18) is fixedly connected with a pneumatic ejector shaft (19) movably plugged into the ejector shaft hole (8), and a supporting short shaft (23) is fixedly installed at the bottom of the surface of the pneumatic ejector shaft (19), a lifting ring seat (20) is fixedly installed at the outer end of the supporting short shaft (23), a reset auxiliary ring sleeve (22) is fixedly connected to the bottom end surface of the lifting ring seat (20), a spring (24) is fixedly connected to the top edge of the lifting ring seat (20), and a lap edge ring (25) is fixedly installed at the top end of the spring (24).

2. The pneumatically assisted demoulding mechanism of an automobile injection mold according to claim 1, characterized in that: Limit guide shafts (26) are fixedly installed near the four corners of the top surface of the bottom mold base (2), an injection mold mechanism (3) is sleeved on the top of the bottom mold base (2) through the limit guide shafts (26), and a hydraulic system loading mechanism (4) is fixedly arranged near both sides of the top surface of the injection mold mechanism (3).

3. The pneumatically assisted demoulding mechanism of an automobile injection mold according to claim 2, characterized in that: The injection mold mechanism (3) comprises a top mold base (301), a top mold plate (302), a limiting guide hole (303), an injection channel (304) and an injection frame opening (305); the top mold base (301) is fixedly arranged on the bottom surface of the top mold plate (302); the injection frame opening (305) is arranged at the top of the injection channel (304); the injection channel (304) is fixedly arranged at the center of the top of the top mold plate (302); the injection channel (304) is connected with the injection frame opening (305), the top mold plate (302) and the inside of the top mold base (301); the limiting guide hole (303) is longitudinally penetrated and opened near the four corners of the top mold base (301) and the top mold plate (302); and the limiting guide shaft (26) is slidably inserted in the limiting guide hole (303).

4. The pneumatically assisted demoulding mechanism of an automobile injection mold according to claim 3, characterized in that: The hydraulic system loading mechanism (4) comprises a hydraulic system connecting angle plate frame (401), a rivet nail (402), a reinforced triangular plate (403) and a hydraulic propulsion mechanism assembly loading hole (404); the bottom plate of the hydraulic system connecting angle plate frame (401) is riveted to the top template (302) through the rivet nail (402); the reinforced triangular plate (403) is fixedly mounted on the inner wall of the hydraulic system connecting angle plate frame (401); and the hydraulic propulsion mechanism assembly loading hole (404) is penetrated and opened in the side wall of the hydraulic system connecting angle plate frame (401).

5. The pneumatically assisted demoulding mechanism of an automobile injection mold according to claim 1, characterized in that: The pneumatic ejection hole (7) is a circular bucket-shaped hole groove with a top diameter larger than its bottom diameter; the top shaft hole (8), the air intake ring hole (9) and the pneumatic chamber (10) are all circular hole groove structures opened longitudinally, and the hole diameter of the air intake ring hole (9) is larger than the hole diameter of the top shaft hole (8); the hole diameter of the pneumatic chamber (10) is larger than the hole diameter of the air intake ring hole (9); and the top end diameter of the top shaft hole (8) coincides with the bottom end diameter of the pneumatic ejection hole (7).

6. The pneumatically assisted demoulding mechanism of an automobile injection mold according to claim 1, characterized in that: The pneumatic input transverse groove comprises a pneumatic input channel groove (12) and an interface groove (11); the pneumatic input channel groove (12) is connected to the inside of the pneumatic chamber (10); the interface groove (11) is connected to the pneumatic input channel groove (12); and the interface groove (11) is connected to the bottom of the side of the bottom mold base (2); and the sealing rubber filling transverse sleeve (13) is embedded in the inside of the pneumatic input channel groove (12).

7. The pneumatically assisted demoulding mechanism of an automobile injection mold according to claim 6, characterized in that: The pneumatic input pipe mechanism comprises a pneumatic conveying transverse pipe (16), an air inlet pipe nozzle (17) and an intracavity air supply pipe structure (15); the air inlet pipe nozzle (17) and the intracavity air supply pipe structure (15) are respectively connected and fixedly connected to the two ends of the pneumatic conveying transverse pipe (16); the pneumatic conveying transverse pipe (16) is embedded in the sealing rubber filling transverse sleeve (13); the air inlet pipe nozzle (17) is located in the interface through groove (11) and protrudes out of the groove body; the intracavity air supply pipe structure (15) is fixedly embedded in the sealing rubber filling base (14); and the top air outlet of the intracavity air supply pipe structure (15) protrudes out of the sealing rubber filling base (14); and one end of the pneumatic conveying transverse pipe (16) connected and connected to the intracavity air supply pipe structure (15) is embedded in the sealing rubber filling base (14).

8. The pneumatically assisted demoulding mechanism of an automobile injection mold according to claim 1, characterized in that: The air intake pipe nozzle (17) includes a pneumatic air intake inlet pipe (1701) and a pneumatic air intake ring nozzle (1702), and the two ends of the pneumatic air intake inlet pipe (1701) are respectively connected to and fixed with the pneumatic conveying transverse pipe (16) and the pneumatic air intake ring nozzle (1702); the intracavitary air delivery pipe structure (15) includes an air delivery longitudinal pipe nozzle (1501) and a closed bottom pipe cover (1502), and the closed bottom pipe cover (1502) is closed and fixed to the bottom port of the air delivery longitudinal pipe nozzle (1501), and the pneumatic conveying transverse pipe (16) is connected to and fixed on the pipe wall of the air delivery longitudinal pipe nozzle (1501).

9. The pneumatically assisted demoulding mechanism of an automobile injection mold according to claim 1, characterized in that: The top outer edge of the lifting ring seat (20) is provided with a lifting auxiliary groove (21); the resetting auxiliary ring sleeve (22) comprises an outer arc ring sleeve body (2201) and a liner support ring (2202); the bottom end of the liner support ring (2202) is fixedly mounted on the bottom of the inner wall of the outer arc ring sleeve body (2201); the outer arc ring sleeve body (2201) and the liner support ring (2202) are respectively fixedly connected to the outer ring and inner ring of the bottom end of the lifting ring seat (20); and the outer ring surface of the outer arc ring sleeve body (2201) is arc-shaped.

10. The pneumatically assisted demoulding mechanism of an automobile injection mold according to claim 1, characterized in that: The number of the supporting short shafts (23) is four, and the four supporting short shafts (23) are equidistantly distributed around the surface of the pneumatic jacking shaft (19) and the inner wall of the jacking ring seat (20); the top of the overlapping ring (25) overlaps with the top of the inner wall of the pneumatic chamber (10), and the jacking ring seat (20) and the reset auxiliary ring sleeve (22) are longitudinally slidably connected in the pneumatic chamber (10).

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