A pneumatic telescopic mold for injection molding

Abstract

The present application provides a pneumatic telescopic mold for injection molding, which relates to the field of injection molds, including a mounting plate 1, a mold 1 arranged on the mounting plate 1, a mounting plate 2 arranged outside the mounting plate 1 and a mold 2 arranged on the mounting plate 2, including an ejection mechanism and a pneumatic mechanism arranged on the mounting plate 1 and the mold 1; the ejection mechanism includes a support frame arranged on the mounting plate 1, and a cylinder arranged on the support frame. In order to solve the problem in the prior art that the temperature of the plastic material after molding is too high or the cooling time is insufficient, which will cause the plastic material to adhere to the ejector during ejection, the present application prevents the end of the ejector from sticking to the plastic material by providing an ejection mechanism and a pneumatic mechanism; the pneumatic mechanism solves the problem in the prior art that the ejector is inconvenient to disassemble; and the pneumatic mechanism solves the problem in the prior art that manual discharging is required.

Description

Technical Field

[0001] The present invention relates to the field of injection molds, in particular to a pneumatic telescopic mold for injection molding. Background Art

[0002] Pneumatic telescopic molds for injection molding are tools used to form thermoplastic or thermosetting plastic materials into products of specific shapes and sizes. However, after the molded plastic material is ejected by the ejection mechanism, the molded plastic material may be too hot or have insufficient cooling time, causing the plastic material to adhere to the ejector pin during ejection, resulting in incomplete demolding and affecting work efficiency.

[0003] For example, the Chinese utility model patent (application number: 202320465836.3) discloses an "injection mold," and its description discloses that during demolding, an ejection mechanism within the existing injection mold is required to eject the molded material. However, sometimes after the molded material is ejected by the ejection mechanism, the molded material will still adhere to the ejector pin, resulting in incomplete demolding and the need for manual material removal. The above patent can prove the defects of the existing technology.

[0004] Therefore, we have made improvements to this problem and proposed a pneumatic telescopic mold for injection molding. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the temperature of the plastic material after molding is too high or the cooling time is insufficient, which causes the plastic material to adhere to the ejector pin during ejection.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides a pneumatic telescopic mold for injection molding to improve the above-mentioned problem.

[0007] The specific application is as follows:

[0008] It includes a mounting plate 1, a mold 1 arranged on the mounting plate 1, a mounting plate 2 arranged outside the mounting plate 1 and a mold 2 arranged on the mounting plate 2, and an ejection mechanism and a pneumatic mechanism arranged on the mounting plate 1 and the mold 1;

[0009] The ejection mechanism includes a support frame provided on the first mounting plate, a cylinder provided on the support frame, and a guide component provided on the support frame;

[0010] The pneumatic mechanism includes an ejector pin slidably arranged in the mounting plate 1 and the mold 1, an air intake component arranged in the ejector pin, a disassembly component arranged on the support frame, and an opening and closing component arranged on the support frame.

[0011] A push column is provided on the mold 1, and a pneumatic telescopic buckle is provided in the mold 2. The pneumatic telescopic buckle and the push column are adapted to each other.

[0012] As a preferred technical solution of the present application, the guide component includes a guide groove provided on the support frame, a sliding seat is slidably provided on the guide groove, and the output end of the cylinder is connected to the sliding seat.

[0013] As a preferred technical solution of the present application, the pneumatic mechanism further includes an air outlet hole provided in the ejector pin, a piston is slidably provided in the air outlet hole, and a one-way valve is provided on the piston.

[0014] As a preferred technical solution of the present application, the air intake component includes a hollow column slidably arranged in the ejector pin, the hollow column is arranged on the piston, a plurality of air intake holes are arranged on the outside of the hollow column, and a spring 1 is arranged on the outside of the hollow column, and the two ends of the spring 1 are respectively connected to the corresponding surfaces of the piston and the ejector pin.

[0015] As a preferred technical solution of the present application, the disassembly component includes a fixed column arranged at the bottom of the ejector, a limiting block is arranged at the bottom of the fixed column, a limiting ring is arranged at the bottom of the hollow column, an L-shaped groove is arranged in the sliding seat, a protrusion is slidably arranged in the L-shaped groove, the protrusion is adapted to the fixed column and the limiting block, the hollow column is slidably arranged on the protrusion, a T-shaped block is slidably arranged in the L-shaped groove, and the hollow column is slidably arranged on the T-shaped block.

[0016] As a preferred technical solution of the present application, a second spring is provided in the L-shaped groove, and both ends of the second spring are respectively connected to the corresponding surfaces of the L-shaped groove and the protrusion.

[0017] As a preferred technical solution of the present application, the opening and closing component includes an electromagnet 1 arranged on the T-shaped block, and an electromagnet 2 is arranged on the sliding seat, and the electromagnet 1 and the electromagnet 2 are adapted to each other.

[0018] As a preferred technical solution of the present application, a spring three is provided on the corresponding surfaces of the T-shaped block and the protrusion.

[0019] As the preferred technical solution of the present application, the pneumatic telescopic buckle includes a fixed cylinder, an adjustment column is slidably arranged in the fixed cylinder, a pushing disk is provided at both ends of the adjustment column, a pushing platform is slidably arranged in the fixed cylinder, and the pushing platform is connected to the pushing disk.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the scheme of this application:

[0022] 1. To address the problem in the prior art of excessively high temperatures or insufficient cooling time of the molded plastic material, which can cause the plastic material to adhere to the ejector pin during ejection, the present invention employs an ejection mechanism and a pneumatic mechanism. When the piston moves backward, cold air cools the end of the ejector pin, reducing the viscosity of the plastic material and the ejector pin. When the piston returns to its original position, the air completely separates the ejector pin from the plastic material, allowing demolding and preventing the ejector pin end from adhering to the plastic material.

[0023] 2. The pneumatic mechanism is set up to press the T-shaped block, so that the T-shaped block and the protrusion release the limit of the ejector, realizing the rapid removal of the ejector, solving the problem of inconvenient removal of the ejector in the prior art;

[0024] 3. The pneumatic mechanism is set up to drive the T-shaped block to reset and hit the fixed column and limit column at the bottom of the ejector, causing the ejector to vibrate, realizing automatic discharge of plastic materials, solving the problem of manual discharge in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a pneumatic telescopic mold for injection molding provided in this application;

[0026] Figure 2 A schematic diagram of the ejection mechanism structure of a pneumatic telescopic mold for injection molding provided in this application;

[0027] Figure 3 A schematic diagram of the internal structure of the pneumatic telescopic buckle of the pneumatic telescopic mold for injection molding provided in this application;

[0028] Figure 4 A schematic diagram of the guide component structure of the pneumatic telescopic mold for injection molding provided in this application;

[0029] Figure 5 A schematic diagram of the internal structure of the support frame of the pneumatic telescopic mold for injection molding provided in this application;

[0030] Figure 6 A schematic diagram of the pneumatic mechanism structure of the pneumatic telescopic mold for injection molding provided in this application;

[0031] Figure 7 A schematic diagram of the partial structure of the fixed column of the pneumatic telescopic mold for injection molding provided in this application;

[0032] Figure 8 A schematic diagram of the structure of the air intake component of the pneumatic telescopic mold for injection molding provided in this application;

[0033] Figure 9 This is a schematic diagram of the internal structure of the fixed column of the pneumatic telescopic mold for injection molding provided in this application.

[0034] Indicated in the figure:

[0035] 1. Mounting plate 1; 101. Mold 1; 102. Mounting plate 2; 103. Mold 2;

[0036] 2. Ejector mechanism; 201. Support frame; 202. Cylinder; 203. Guide component; 2031. Guide groove; 2032. Sliding seat;

[0037] 3. Pneumatic mechanism; 301. Ejector pin; 302. Air outlet; 303. Piston; 304. One-way valve; 305. Air inlet component; 3051. Hollow column; 3052. Air inlet; 3053. Spring 1; 306. Disassembly component; 3061. Fixed column; 3062. Stop block; 3063. Stop ring; 3064. L-shaped groove; 3065. Protrusion; 3066. T-shaped block; 3067. Spring 2; 307. Opening and closing component; 3071. Electromagnet 1; 3072. Electromagnet 2; 3073. Spring 3;

[0038] 4. Pushing column; 401. Pneumatic telescopic buckle; 4011. Fixed cylinder; 4012. Adjusting column; 4013. Pushing plate; 4014. Pushing platform. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts should fall within the scope of protection of the present invention.

[0040] As described in the background art, if the temperature of the molded plastic material is too high or the cooling time is insufficient, the plastic material may adhere to the ejector pin during ejection.

[0041] In order to solve this technical problem, the present invention provides a pneumatic telescopic mold for injection molding, which is applied to the injection mold.

[0042] Specifically, please refer to Figures 1-9 The pneumatic telescopic mold for injection molding specifically includes: a mounting plate 1, a mold 101 arranged on the mounting plate 1, a mounting plate 2 102 arranged outside the mounting plate 1, and a mold 2 103 arranged on the mounting plate 2 102, including an ejection mechanism 2 and a pneumatic mechanism 3 arranged on the mounting plate 1 and the mold 101;

[0043] The ejection mechanism 2 includes a support frame 201 provided on the mounting plate 1, a cylinder 202 provided on the support frame 201, and a guide member 203 provided on the support frame 201;

[0044] The pneumatic mechanism 3 includes a pin 301 slidably arranged in the mounting plate 1 and the mold 101, an air intake component 305 arranged in the pin 301, a disassembly component 306 arranged on the support frame 201, and an opening and closing component 307 arranged on the support frame 201.

[0045] The pneumatic telescopic mold for injection molding provided by the present invention solves the problem in the prior art that the plastic material after molding may adhere to the ejector pin 301 due to excessively high temperature or insufficient cooling time. By providing an ejection mechanism 2 and a pneumatic mechanism 3, the present application allows cold air to cool the end of the ejector pin 301 when the piston 303 moves backward, thereby reducing the viscosity of the plastic material and the ejector pin 301. When the piston 303 returns to its original position, the air completely separates the ejector pin 301 from the plastic material, allowing demolding, thereby preventing the end of the ejector pin 301 from adhering to the plastic material.

[0046] The pneumatic mechanism 3 is provided to press the T-shaped block 3066, so that the limit of the T-shaped block 3066 and the protrusion 3065 on the ejector 301 is released, thereby realizing the rapid removal of the ejector 301 and solving the problem of the inconvenience of removing the ejector 301 in the prior art.

[0047] The pneumatic mechanism 3 is provided to drive the T-shaped block 3066 to reset and hit the fixed column 3061 and the limit column at the bottom of the ejector 301, causing the ejector 301 to vibrate, thereby realizing automatic discharge of the plastic material and solving the problem of manual discharge in the prior art.

[0048] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0049] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein may be combined with each other.

[0050] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0051] Example 1, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6, a pneumatic telescopic mold for injection molding, wherein a push column 4 is provided on the mold 1 101, and a pneumatic telescopic buckle 401 is provided in the mold 2 103. The pneumatic telescopic buckle 401 and the push column 4 are adapted to each other, and the push column 4 provides a guide for the mold 2 103. The injection molding machine drives the mold 2 103 to move laterally and cooperate with the mold 1 101. The injection molding machine then transports plastic material into the mold 2 103 to realize the injection molding process. When the mold 2 103 moves laterally, the push column 4 on the mold 1 101 is inserted into the mold 2 103, so that the push column 4 cooperates with the pneumatic telescopic buckle 401. The pneumatic telescopic buckle 401 is connected to the mold 2 103 through a threaded connection, which is convenient for the staff to replace;

[0052] The pneumatic telescopic buckle 401 includes a fixed cylinder 4011, an adjusting column 4012 is slidably provided in the fixed cylinder 4011, and a pushing plate 4013 is provided at both ends of the adjusting column 4012. A pushing platform 4014 is slidably provided on the fixed cylinder 4011, and the pushing platform 4014 is connected to the pushing plate 4013. When the pushing column 4 is inserted into the mold 2 103 and squeezes the air inside it, the air pressure on the side of the pneumatic telescopic buckle 401 close to the pushing column 4 increases, and the air pressure in the fixed cylinder 4011 increases, and the pushing plate 4013 in the fixed cylinder 4011 is squeezed by the air and moves backward. The push disk 4013 drives the adjustment column 4012 and the ejection platform 4014 to move synchronously. The ejection platform 4014 compresses the space on the side of the pneumatic telescopic buckle 401 away from the ejection column 4, so that the pressure on the side of the pneumatic telescopic buckle 401 away from the ejection column 4 becomes greater. When the device is demoulding, the pneumatic telescopic buckle 401 pushes the ejection column 4 out by air pressure, thereby demoulding the plastic material. This reduces the end face wear of the ejection column 4. For the demoulding of the plastic material, pneumatic demoulding provides a smoother and cleaner ejection process, minimizes surface damage, and ensures the appearance quality of the product.

[0053] The guide member 203 includes a guide groove 2031 provided on the support frame 201. A sliding seat 2032 is slidably provided on the guide groove 2031. The output end of the cylinder 202 is connected to the sliding seat 2032. When the cylinder 202 is in operation, the output end of the cylinder 202 drives the sliding seat 2032 to move forward. The sliding seat 2032 drives the ejector 301 to move synchronously, and the ejector 301 ejects the formed plastic.

[0054] The pneumatic mechanism 3 further includes an air outlet 302 disposed in the ejector pin 301. A piston 303 is slidably disposed in the air outlet 302. The piston 303 is provided with a one-way valve 304. When the piston 303 moves backward, and when the mold 1 101 and the mold 2 103 are mated and injection molding is performed, the one-way valve 304 allows cold air to enter the side of the piston 303 close to the end of the ejector pin 301. The cold air from the outside contacts the ejector pin 301, cooling the ejector pin 301. This reduces the viscosity of the plastic between the end of the ejector pin 301 and the plastic, thereby preventing the molded plastic from being too hot and adhering to the end of the ejector pin 301.

[0055] The air inlet component 305 includes a hollow column 3051 slidably disposed within the ejector pin 301. The hollow column 3051 is disposed on the piston 303. A plurality of air inlet holes 3052 are disposed on the outer side of the hollow column 3051. A spring 1 3053 is disposed on the outer side of the hollow column 3051. The ends of the spring 1 3053 are connected to corresponding surfaces of the piston 303 and the ejector pin 301, respectively. The hollow column 3051 and the air inlet holes 3052 are used to connect the outside world with the air outlet holes 302. When the spring 1 3053 drives the piston 303 to return, the piston 303 squeezes the air entering from the side near the end of the ejector pin 301, and the air is used to eject the molded plastic. This reduces the damage rate of the molded plastic during demolding and improves production quality.

[0056] During demolding, cold air from the outside is delivered to the end of the ejector pin 301 through the pneumatic mechanism 3. The end of the ejector pin 301 and the outer wall are cooled, and the viscosity between the end of the ejector pin 301 and the plastic is reduced, preventing the molded plastic from being too hot and sticking to the end of the ejector pin 301. At the same time, the air intake component 305 ejects the molded plastic through air, reducing the damage rate of the molded plastic during demolding and improving production quality.

[0057] Example 2, the pneumatic telescopic mold for injection molding provided in Example 1 is further optimized, specifically, as Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, the disassembly component 306 includes a fixed column 3061 provided at the bottom of the ejector 301, a limit block 3062 is provided at the bottom of the fixed column 3061, a limit ring 3063 is provided at the bottom of the hollow column 3051, an L-shaped groove 3064 is provided in the sliding seat 2032, a protrusion 3065 is slidably provided in the L-shaped groove 3064, the protrusion 3065 is adapted to the fixed column 3061 and the limit block 3062, the hollow column 3051 is slidably provided on the protrusion 3065, and a T-shaped block 306 is slidably provided in the L-shaped groove 3064. 6. The hollow column 3051 is slidably arranged on the T-shaped block 3066. When the T-shaped block 3066 is manually pressed, the T-shaped block 3066 moves downward along the L-shaped groove 3064. The T-shaped block 3066 squeezes the protrusion 3065, causing the protrusion 3065 to move downward along the L-shaped groove 3064. At this time, the protrusion 3065 releases the restriction on the fixed column 3061 and the limit block 3062. At the same time, the T-shaped block 3066 releases the restriction on the hollow column 3051 and the limit ring 3063, so that the restriction on the ejector pin 301 is released. Figure 8 As shown, the ejector pin 301 can be quickly disassembled and replaced. This installation method can reduce the wear of the ejector pin 301 compared to the existing threaded connection of the ejector pin 301. The threaded connection of the ejector pin 301 will cause greater wear on the thread and easily cause damage to the ejector pin 301.

[0058] A second spring 3067 is disposed within the L-shaped groove 3064. Two ends of the second spring 3067 are connected to corresponding surfaces of the L-shaped groove 3064 and the protrusion 3065, respectively. The elasticity of the second spring 3067 forces the protrusion 3065 to limit the position of the fixing column 3061 and the limiting block 3062. The elasticity of the second spring 3067 also forces the protrusion 3065 to return to its original position.

[0059] The opening and closing component 307 includes an electromagnet 1 3071 disposed on the T-shaped block 3066 and an electromagnet 2 3072 disposed on the sliding seat 2032. The electromagnet 1 3071 and the electromagnet 2 3072 are adapted to each other. When the electromagnet 1 3071 and the electromagnet 2 3072 generate suction, the electromagnet 1 3071 is attracted, causing the T-shaped block 3066 to slide along the L-shaped groove 3064. The sliding of the T-shaped block 3066 drives the limit block 3062 to move synchronously, and the hollow column 3051 on the limit ring 3063 to move synchronously, thereby causing the piston 303 to move backward synchronously.

[0060] A third spring 3073 is provided on the corresponding surfaces of the T-shaped block 3066 and the protrusion 3065. When the first electromagnet 3071 and the second electromagnet 3072 generate a repulsive force, the elasticity of the third spring 3073 drives the T-shaped block 3066 to return to its original position. The T-shaped block 3066 quickly returns to its original position along the L-shaped groove 3064. At this time, the T-shaped block 3066 strikes the limit block 3062. The vibration of the limit block 3062 is transmitted to the ejector pin 301, causing the ejector pin 301 to vibrate. During demolding, the vibration of the ejector pin 301 can be used to automatically discharge the material, reducing the workload of the staff.

[0061] When the T-shaped block 3066 moves downward, the ejector 301 can be quickly disassembled through the disassembly component 306. When the electromagnet 1 3071 and the electromagnet 2 3072 generate a repulsive force, the T-shaped block 3066 is reset, and the opening and closing component 307 drives the T-shaped block 3066 to hit the limit block 3062, causing the ejector 301 to vibrate, and automatic discharging is achieved through the vibration of the ejector 301.

[0062] The use process of the pneumatic telescopic mold for injection molding provided by the present invention is as follows:

[0063] During use, the injection molding machine drives the mold 2 103 to move laterally and cooperate with the mold 1 101, and the injection molding machine then transports plastic material into the mold 2 103 to realize injection molding. At this time, the push column 4 cooperates with the pneumatic telescopic buckle 401. When the push column 4 is inserted into the mold 2 103 and squeezes the air inside it, the air pressure on the side of the pneumatic telescopic buckle 401 close to the push column 4 becomes larger, and the air pressure in the fixed cylinder 4011 becomes larger. The pushing disk 4013 in the fixed cylinder 4011 is squeezed by the air and moves backward. The pushing disk 4013 drives the adjusting column 4012 to move synchronously with the pushing platform 4014. The pushing platform 4014 compresses the space on the side of the pneumatic telescopic buckle 401 away from the push column 4, so that the pneumatic telescopic buckle 401 moves away from the push column 4. The pressure on one side of the ejector column 4 increases. At this time, the electromagnet 1 3071 and the electromagnet 2 3072 generate suction, and the T-shaped block 3066 moves along the L-shaped groove 3064 and toward the electromagnet 2 3072. When the T-shaped block 3066 slides, it drives the limit block 3062 to move synchronously, and the hollow column 3051 on the limit ring 3063 moves synchronously, thereby causing the piston 303 to move backward synchronously. The piston 303 is acted upon by the one-way valve 304, so that the side of the piston 303 close to the end of the ejector pin 301 enters the cold air. The cold air from the outside contacts the ejector pin 301, cooling the ejector pin 301, thereby reducing the viscosity of the end of the ejector pin 301 and the plastic. At this time, the electromagnet 1 3071 and the electromagnet 2 307 2 generates repulsive force, and the elasticity of spring three 3073 drives the T-shaped block 3066 to reset. Spring one 3053 drives the piston 303 to reset. The piston 303 squeezes the air entering from the side close to the end of the ejector pin 301, and the molded plastic is ejected through the air. At the same time, the cylinder 202 is started, and the output end of the cylinder 202 drives the sliding seat 2032 to move forward along the guide groove 2031. The electromagnet one 3071 and the electromagnet two 3072 generate repulsive force. The T-shaped block 3066 and the protrusion 3065 in the sliding seat 2032 drive the fixed column 3061 together with the ejector pin 301 to expand, causing the ejector pin 301 to expand. The T-shaped block 3066 quickly resets along the L-shaped groove 3064. At this time, the T-shaped block 3066 hits the When the limit block 3062 is hit, the vibration of the limit block 3062 is transmitted to the ejector 301, causing the ejector 301 to vibrate. The vibration of the ejector 301 realizes automatic material discharge, reducing the workload of the staff. When the T-shaped block 3066 is manually pressed, the T-shaped block 3066 moves downward along the L-shaped groove 3064. The T-shaped block 3066 squeezes the protrusion 3065, causing the protrusion 3065 to move downward along the L-shaped groove 3064. At this time, the protrusion 3065 releases the restriction on the fixed column 3061 and the limit block 3062. At the same time, the T-shaped block 3066 releases the restriction on the hollow column 3051 and the limit ring 3063, so that the restriction on the ejector 301 is released, realizing the rapid disassembly and replacement of the ejector 301.

[0064] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0065] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A pneumatic telescopic mold for injection molding, comprising a mounting plate (1), a mold (101) arranged on the mounting plate (1), a mounting plate (102) arranged outside the mounting plate (1), and a mold (103) arranged on the mounting plate (102), characterized in that: It comprises an ejection mechanism (2) and a pneumatic mechanism (3) arranged on the mounting plate 1 (1) and the mold 1 (101); The ejection mechanism (2) comprises a support frame (201) provided on the mounting plate (1), a cylinder (202) provided on the support frame (201), and a guide component (203) provided on the support frame (201); The pneumatic mechanism (3) comprises a pin (301) slidably disposed within the mounting plate (1) and the mold (101), an air intake component (305) disposed within the pin (301), a disassembly component (306) disposed on the support frame (201), and an opening and closing component (307) disposed on the support frame (201); The pneumatic mechanism (3) further comprises an air outlet (302) provided in the ejector pin (301), a piston (303) being slidably provided in the air outlet (302), and a one-way valve (304) being provided on the piston (303); The air intake component (305) includes a hollow column (3051) slidably arranged in the ejector pin (301), the hollow column (3051) is arranged on the piston (303), a plurality of air intake holes (3052) are arranged on the outer side of the hollow column (3051), a spring (3053) is arranged on the outer side of the hollow column (3051), and two ends of the spring (3053) are respectively connected to corresponding surfaces of the piston (303) and the ejector pin (301); The pneumatic telescopic buckle (401) comprises a fixed cylinder (4011), an adjusting column (4012) is slidably provided in the fixed cylinder (4011), a pushing disk (4013) is provided at both ends of the adjusting column (4012), and a pushing platform (4014) is slidably provided in the fixed cylinder (4011), and the pushing platform (4014) is connected to the pushing disk (4013).

2. A pneumatic telescopic mold for injection molding according to claim 1, characterized in that: A push column (4) is provided on the mold 1 (101), and a pneumatic telescopic buckle (401) is provided in the mold 2 (103), and the pneumatic telescopic buckle (401) and the push column (4) are adapted to each other.

3. A pneumatic telescopic mold for injection molding according to claim 2, characterized in that: The guide component (203) comprises a guide groove (2031) provided on the support frame (201), a sliding seat (2032) is slidably provided on the guide groove (2031), and the output end of the cylinder (202) is connected to the sliding seat (2032).

4. A pneumatic telescopic mold for injection molding according to claim 3, characterized in that: The disassembly component (306) comprises a fixed column (3061) arranged at the bottom of the ejector pin (301), a limiting block (3062) is arranged at the bottom of the fixed column (3061), a limiting ring (3063) is arranged at the bottom of the hollow column (3051), an L-shaped groove (3064) is arranged in the sliding seat (2032), a protrusion (3065) is slidably arranged in the L-shaped groove (3064), the protrusion (3065) is adapted to the fixed column (3061) and the limiting block (3062), the hollow column (3051) is slidably arranged on the protrusion (3065), a T-shaped block (3066) is slidably arranged in the L-shaped groove (3064), and the hollow column (3051) is slidably arranged on the T-shaped block (3066).

5. The pneumatic telescopic mold for injection molding according to claim 4, characterized in that: A second spring (3067) is provided in the L-shaped groove (3064), and two ends of the second spring (3067) are respectively connected to corresponding surfaces of the L-shaped groove (3064) and the protrusion (3065).

6. The pneumatic telescopic mold for injection molding according to claim 5, characterized in that: The opening and closing component (307) includes an electromagnet 1 (3071) arranged on the T-shaped block (3066), and an electromagnet 2 (3072) is arranged on the sliding seat (2032), and the electromagnet 1 (3071) and the electromagnet 2 (3072) are adapted to each other.

7. The pneumatic telescopic mold for injection molding according to claim 6, characterized in that: A spring three (3073) is provided on the corresponding surfaces of the T-shaped block (3066) and the protrusion (3065).

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