Pneumatic telescopic mold for injection molding

Abstract

The invention provides a pneumatic telescopic mold for injection molding, and relates to the field of injection molds, the pneumatic telescopic mold for injection molding comprises a mounting plate I, a mold I arranged on the mounting plate I, a mounting plate II arranged on the outer side of the mounting plate I, and a mold II arranged on the mounting plate II, comprising an ejection mechanism and a pneumatic mechanism which are arranged on the first mounting plate and the first mold. The ejection mechanism comprises a supporting frame arranged on the first mounting plate and an air cylinder arranged on the supporting frame. The problem that in the prior art, due to the fact that the temperature of a formed plastic material is too high or the cooling time is insufficient, the plastic material is attached to an ejector pin during ejection is solved. Through the arrangement of the ejection mechanism and the pneumatic mechanism, the situation that the end of the ejector pin adheres to a plastic material is prevented; the pneumatic mechanism is arranged, so that the problem that the ejector pin is inconvenient to disassemble in the prior art is solved; and the pneumatic mechanism is arranged, so that the problem of manual discharging in the prior art is solved.

Description

Technical Field

[0001] The 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 make 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 temperature of the molded plastic material is too high or the cooling time is insufficient, which will cause the plastic material to adhere to the ejector pin during ejection, resulting in incomplete demoulding and affecting work efficiency.

[0003] For example: The "injection mold" disclosed in the Chinese utility model patent (application number: 202320465836.3) discloses in its specification that the existing injection mold needs to use the ejection mechanism inside the injection mold to eject the molded material during demolding. 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 prior art.

[0004] Therefore, we make improvements on this and propose 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 includes 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 arranged on the first mounting plate, a cylinder arranged on the support frame, and a guide component arranged on the support frame;

[0010] The pneumatic mechanism comprises an ejector pin which is 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 arranged on the mold 1, and a pneumatic telescopic buckle is arranged in the mold 2, and 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 arranged on the support frame, a sliding seat is slidably arranged 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 comprises an air outlet hole arranged in the ejector pin, a piston is slidably arranged in the air outlet hole, and a one-way valve is arranged 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, 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 pin, 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 arranged in the L-shaped groove, and two 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, spring three is arranged on the corresponding surfaces of the T-shaped block and the protrusion.

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

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

[0021] In the scheme of this application:

[0022] 1. 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 causes the plastic material to adhere to the ejector pin during ejection, the present application provides an ejection mechanism and a pneumatic mechanism. When the piston moves backward, cold air cools the end of the ejector pin, thereby reducing the viscosity of the plastic material and the ejector pin. When the piston is reset, the ejector pin is completely separated from the plastic material by air, and demolding is performed, thereby preventing the end of the ejector pin from adhering to the plastic material.

[0023] 2. The pneumatic mechanism is set to press the T-shaped block, so that the limit of the T-shaped block and the protrusion on the ejector is released, so that the ejector can be quickly disassembled, solving the problem of inconvenient removal of the ejector in the prior art;

[0024] 3. Through the pneumatic mechanism, the T-shaped block is driven to reset and hit the fixed column and the limit column at the bottom of the ejector, so that the ejector vibrates, realizing the automatic discharge of the plastic material, solving the problem of manual discharge in the prior art. 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 structure of the guide component 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] Fig. 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. ejection 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. convex block; 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 table. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 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 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 Figure 1-Figure 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 disposed on the mounting plate 1, a cylinder 202 disposed on the support frame 201, and a guide component 203 disposed on the support frame 201;

[0044] The pneumatic mechanism 3 includes an ejector pin 301 slidably disposed in the mounting plate 1 and the mold 101 , an air intake component 305 disposed in the ejector 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 .

[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 is too hot or the cooling time is insufficient, which causes the plastic material to adhere to the ejector pin 301 during ejection. The present application provides an ejection mechanism 2 and a pneumatic mechanism 3. When the piston 303 moves backward, cold air cools the end of the ejector pin 301, thereby reducing the viscosity of the plastic material and the ejector pin 301. When the piston 303 is reset, the ejector pin 301 is completely separated from the plastic material by air, and demoulding is performed, 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 ejector pin 301 by the T-shaped block 3066 and the protrusion 3065 is released, thereby realizing the rapid disassembly of the ejector pin 301, and solving the problem of the inconvenience of disassembly of the ejector pin 301 in the prior art;

[0047] The pneumatic mechanism 3 is provided to drive the T-shaped block 3066 to reset and hit the fixing column 3061 and the limiting column at the bottom of the ejector pin 301, so that the ejector pin 301 vibrates, thereby realizing automatic discharging of the plastic material and solving the problem of manual discharging 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 in conjunction with 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 in the embodiments 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, further definition and explanation thereof is not required 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 arranged on the mold 1 101, and a pneumatic telescopic buckle 401 is arranged 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, and 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, thereby realizing 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, and the pneumatic telescopic buckle 401 is connected to the mold 2 103 by a thread, 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 arranged in the fixed cylinder 4011, and both ends of the adjusting column 4012 are provided with a pushing plate 4013. The fixed cylinder 4011 is slidably provided with a pushing platform 4014, and the pushing platform 4014 is connected to the pushing plate 4013. When the pushing column 4 is inserted into the mold 103 and squeezes the air inside, 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 plate 4013 drives the adjustment column 4012 and the push table 4014 to move synchronously. The push table 4014 compresses the space on the side of the pneumatic telescopic buckle 401 away from the push column 4, so that the pressure on the side of the pneumatic telescopic buckle 401 away from the push column 4 becomes larger. When the device is demoulded, the pneumatic telescopic buckle 401 pushes the push column 4 out by air pressure to realize the demoulding of the plastic material, thereby reducing the end face wear of the push column 4. For the demoulding of the plastic material, the pneumatic demoulding provides a smoother and cleaner ejection process, minimizes surface damage, and ensures the appearance quality of the product;

[0053] The guide component 203 includes 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. When the cylinder 202 is working, the output end of the cylinder 202 drives the sliding seat 2032 to move forward, and 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, and a one-way valve 304 is disposed on the piston 303. When the piston 303 moves backward and the mold 1 101 and the mold 2 103 cooperate and perform injection molding, 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, and the cold air from the outside contacts the ejector pin 301, so that the ejector pin 301 is cooled, thereby reducing the viscosity of the end of the ejector pin 301 and the plastic, thereby preventing the molded plastic from being too hot and sticking to the end of the ejector pin 301.

[0055] The air inlet component 305 includes a hollow column 3051 slidably disposed in 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. Both ends of the spring 1 3053 are respectively connected to corresponding surfaces of the piston 303 and the ejector pin 301. The hollow column 3051 and the air inlet holes 3052 are used to connect the outside with the air outlet holes 302. When the spring 1 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 ejects the molded plastic through the air, thereby reducing the damage rate of the molded plastic during demoulding and improving the production quality.

[0056] During demolding, the pneumatic mechanism 3 delivers cold air from the outside to the end of the ejector pin 301, and the end of the ejector pin 301 together with the outer wall is cooled, so that the viscosity between the end of the ejector pin 301 and the plastic is reduced, thereby 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, thereby reducing the damage rate of the molded plastic during demolding and improving the production quality.

[0057] Embodiment 2, the pneumatic telescopic mold for injection molding provided in embodiment 1 is further optimized, specifically, as Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, the disassembly component 306 includes a fixed column 3061 arranged at the bottom of the ejector 301, a limit block 3062 is arranged at the bottom of the fixed column 3061, a limit 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 limit block 3062, the hollow column 3051 is slidably arranged on the protrusion 3065, and a T-shaped block 306 is slidably arranged in the L-shaped groove 3064. 6. The hollow column 3051 is slidably disposed 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, so that the protrusion 3065 moves downward along the L-shaped groove 3064 synchronously. At this time, the protrusion 3065 releases the limit of the fixed column 3061 and the limit block 3062. At the same time, the T-shaped block 3066 releases the limit of the hollow column 3051 and the limit ring 3063, so that the limit of 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 ejector pin 301 connected by threads. The ejector pin 301 connected by threads will cause greater wear on the threads and easily cause damage to the ejector pin 301.

[0058] A second spring 3067 is disposed in the L-shaped groove 3064, and two ends of the second spring 3067 are respectively connected to the corresponding surfaces of the L-shaped groove 3064 and the protrusion 3065, and the elasticity of the second spring 3067 drives the protrusion 3065 to limit the fixing column 3061 and the limiting block 3062, and the elasticity of the second spring 3067 can drive 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 is 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, so that the T-shaped block 3066 slides along the L-shaped groove 3064. When the T-shaped block 3066 slides, the limit block 3062 is driven to move synchronously, and the hollow column 3051 on the limit ring 3063 is moved synchronously, thereby causing the piston 303 to move backward synchronously;

[0060] A spring 3073 is provided on the corresponding surface of the T-shaped block 3066 and the protrusion 3065. When the electromagnet 1 3071 and the electromagnet 2 3072 generate repulsive force, the elasticity of the spring 3073 drives the T-shaped block 3066 to reset, and the T-shaped block 3066 quickly resets along the L-shaped groove 3064. At this time, the T-shaped block 3066 hits the limit block 3062, and the vibration of the limit block 3062 is transmitted to the ejector pin 301, so that the ejector pin 301 vibrates. When demoulding, the vibration of the ejector pin 301 can be used for automatic discharging, reducing the workload of the staff;

[0061] When the T-block 3066 moves downward, the ejector pin 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-block 3066 is reset, and the T-block 3066 is driven to hit the limit block 3062 through the opening and closing component 307, so that the ejector pin 301 vibrates, and automatic discharging is achieved through the vibration of the ejector pin 301.

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

[0063] When in 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 achieve 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 push plate 4013 in the fixed cylinder 4011 is squeezed by the air and moves backward. The push plate 4013 drives the adjusting column 4012 to move synchronously together with the push table 4014. The push table 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 in the direction of the electromagnet 2 3072. When the T-shaped block 3066 slides, the limit block 3062 is driven to move synchronously, and the hollow column 3051 on the limit ring 3063 is moved 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, and the cold air from the outside contacts the ejector pin 301, so that the ejector pin 301 is cooled, 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, and the 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 by 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, so that the ejector pin 301 is expanded, and 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 T-shaped block 3066 is manually pressed, the T-shaped block 3066 moves downward along the L-shaped groove 3064, and the T-shaped block 3066 squeezes the protrusion 3065, so that the protrusion 3065 moves downward along the L-shaped groove 3064 synchronously. At this time, the protrusion 3065 releases the limit of the fixed column 3061 and the limit block 3062. At the same time, the T-shaped block 3066 releases the limit of the hollow column 3051 and the limit ring 3063, so that the limit of the ejector 301 is released, and the ejector 301 is quickly disassembled and replaced.

[0064] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to 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 recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, 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) disposed on the mounting plate (1), a mounting plate (102) disposed outside the mounting plate (1), and a mold (103) disposed 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) arranged on the mounting plate 1 (1), a cylinder (202) arranged on the support frame (201), and a guide component (203) arranged 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).

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

3. A pneumatic telescopic mold for injection molding according to claim 2, characterized in that: The guide component (203) comprises a guide groove (2031) arranged on the support frame (201), a sliding seat (2032) is slidably arranged 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 pneumatic mechanism (3) further comprises an air outlet hole (302) arranged in the ejector pin (301), a piston (303) being slidably arranged in the air outlet hole (302), and a one-way valve (304) being arranged on the piston (303).

5. A pneumatic telescopic mold for injection molding according to claim 4, characterized in that: The air intake component (305) comprises 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 1 (3053) is arranged on the outer side of the hollow column (3051); two ends of the spring 1 (3053) are respectively connected to corresponding surfaces of the piston (303) and the ejector pin (301).

6. A pneumatic telescopic mold for injection molding according to claim 5, characterized in that: The disassembly component (306) comprises a fixed column (3061) arranged at the bottom of the ejector pin (301), a limit block (3062) is arranged at the bottom of the fixed column (3061), a limit 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 convex block (3065) is slidably arranged in the L-shaped groove (3064), the convex block (3065) is adapted to the fixed column (3061) and the limit block (3062), the hollow column (3051) is slidably arranged on the convex block (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).

7. A pneumatic telescopic mold for injection molding according to claim 6, characterized in that: A second spring (3067) is arranged 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).

8. The pneumatic telescopic mold for injection molding according to claim 7, 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.

9. The pneumatic telescopic mold for injection molding according to claim 8, characterized in that: A spring three (3073) is arranged on the corresponding surfaces of the T-shaped block (3066) and the protrusion (3065).

10. The pneumatic telescopic mold for injection molding according to claim 2, characterized in that: The pneumatic telescopic buckle (401) comprises a fixed cylinder (4011), an adjusting column (4012) is slidably arranged inside the fixed cylinder (4011), a pushing disk (4013) is arranged at both ends of the adjusting column (4012), and a pushing platform (4014) is slidably arranged in the fixed cylinder (4011), and the pushing platform (4014) is connected to the pushing disk (4013).

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