Injection mold

Abstract

An injection mold comprises an upper mold body and a lower mold body which are matched in an opening and closing mode, and further comprises a pushing assembly movably arranged on the lower mold body in a penetrating mode and provided with a gas flow channel communicated with an external gas source; and the rotating part is arranged at the end, close to the upper die, of the pushing assembly in a sleeving mode and rotationally connected with the pushing assembly, a plurality of inclined holes communicating with the gas flow channel are formed in the peripheral side of the rotating part at intervals, and a preset included angle is formed between the extending direction of each inclined hole and the horizontal direction. When the injection mold is opened, the pushing assembly drives the rotating part to stretch out of the lower mold, gas provided by an external gas source is conveyed to the multiple inclined holes communicating with the gas flow channel through the gas flow channel, the gas can be sprayed out through the multiple inclined holes, driving force is applied to the rotating part, and the rotating part is driven by the gas to rotate; therefore, the injection mold can be quickly cleaned by the gas sprayed out of the inclined holes, manual cleaning is not needed, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold cleaning, in particular to an injection mold. Background Art

[0002] At present, during the production process of the mold, impurities such as material chips and aluminum chips will be generated on the surface of the upper mold and the lower mold. If the impurities and other dirt adhering to the mold are not cleaned in time, the mold will be pressed when the mold is closed, resulting in mold damage, affecting production efficiency and product quality.

[0003] Generally, the mold surface is cleaned regularly by hand using a spray gun, a rag, etc. to remove impurities and dirt on the mold surface. However, manual cleaning is inefficient. Utility Model Content

[0004] In view of the above situation, it is necessary to provide an injection mold to improve the cleaning efficiency.

[0005] An embodiment of the present application provides an injection mold, including an upper mold and a lower mold that are opened and matched, and the injection mold also includes: a push assembly, which is movably arranged in the lower mold and is provided with a gas flow channel connected to an external gas source; a rotating member, which is sleeved on one end of the push assembly adjacent to the upper mold and is rotatably connected to the push assembly, and a plurality of inclined holes connected to the gas flow channel are arranged at intervals on the circumference of the rotating member, and the extension direction of each of the inclined holes forms a preset angle with the horizontal direction; wherein, when the mold is opened, the push assembly drives the rotating member to extend out of the lower mold, and transports the gas provided by the external gas source to the plurality of inclined holes through the gas flow channel, and the gas is ejected through the plurality of inclined holes to drive the rotating member to rotate, so as to clean the lower mold.

[0006] In the above-mentioned injection mold, when the injection mold is opened, the push assembly drives the rotating part to extend out of the lower mold, and the gas provided by the external gas source is transported to the multiple inclined holes connected to the gas flow channel through the gas flow channel, so that the gas can be ejected through the multiple inclined holes respectively and apply a driving force to the rotating part, so that the rotating part rotates under the drive of the gas, so that the gas ejected from the multiple inclined holes can quickly clean the injection mold, without the need for manual cleaning, thereby improving the cleaning efficiency.

[0007] In some embodiments, the pushing assembly includes: a pushing member, which is movably inserted into the lower mold and is provided with a through groove connected to the external gas source along the mold opening direction; a limiting member, which is inserted into the rotating member and is detachably connected to the pushing member, and the limiting member is provided with a connecting groove, and the connecting groove is connected with the through groove to form the gas flow channel, the rotating member is rotatably connected to the limiting member and / or the pushing member, and the limiting member is used to limit the rotating member and transport the gas to the plurality of inclined holes through the connecting groove.

[0008] In some embodiments, the limiting member includes: a connecting portion, which is detachably connected to the pushing member and is provided with an air inlet groove and a plurality of air holes, the air inlet groove is arranged along the mold opening direction and is connected with the through groove, the plurality of air holes are arranged at intervals along the circumference of the connecting portion and are respectively connected with the air inlet groove to form the connecting groove, and the plurality of air holes are used to transport the gas received by the air inlet groove to the plurality of inclined holes; a limiting portion, which is connected to the connecting portion and is clearance-matched with the rotating member, and the limiting portion is used to limit the rotating member to the pushing member.

[0009] In some embodiments, the end of the connecting portion adjacent to the pushing member is provided with an external thread, and one end of the through groove adjacent to the limiting member is provided with an internal thread adapted to the external thread, and the limiting member and the pushing member are threadably connected via the external thread and the internal thread.

[0010] In some embodiments, the rotating member is provided with a receiving groove for receiving the connecting portion, the receiving groove penetrates the rotating member along the mold opening direction and is respectively connected with the plurality of inclined holes, and the inner diameter of the receiving groove is greater than the diameter of the connecting portion.

[0011] In some embodiments, the rotating member is provided with a plurality of injection areas in sequence along the mold opening direction, and each of the injection areas is provided with a plurality of the inclined holes at intervals along the circumference of the rotating member.

[0012] In some embodiments, the lower mold is provided with a lower mold plate, an ejector plate and a fixed plate in sequence along the mold opening direction, the lower mold plate is adjacent to the upper mold relative to the ejector plate, the opposite sides of the ejector plate are respectively abutted against the lower mold plate and the fixed plate, and the ejection assembly passes through the lower mold plate and the ejector plate in sequence; the injection mold also includes a connecting piece, the connecting piece is embedded in the side of the ejector plate facing the fixed plate and is connected with the external gas source through an air pipe, and the connecting piece is used to conduct the gas provided by the external gas source into the gas flow channel through the air pipe.

[0013] In some embodiments, the ejector plate includes an upper top plate and a lower top plate, which are sequentially arranged and connected along the mold opening direction, and the upper top plate and the lower top plate are respectively abutted against the lower mold plate and the fixed plate, the push assembly is passed through the upper top plate and abuts against the lower top plate, and the lower top plate is sequentially provided with interconnected ventilation grooves and installation grooves along the mold opening direction, the ventilation grooves are connected to the gas flow channel, and the installation grooves are connected to the ventilation grooves and accommodate the connecting parts; the injection mold also includes a sealing member, which is surrounded by the ventilation grooves and respectively abuts against the push assembly and the lower top plate.

[0014] In some embodiments, the fixing plate is provided with an avoidance groove, and one end of the avoidance groove is connected to the mounting groove, and one end of the avoidance groove is opened on the side wall of the fixing plate, and the avoidance groove is used to receive and avoid the air pipe.

[0015] In some embodiments, a guide groove is provided on the side of the lower mold plate facing the upper mold, and the injection mold also includes a guide member, which is arranged opposite to the guide groove and connected to the upper mold, and the guide member is used to be inserted into the guide groove to guide the upper mold and the lower mold to close the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of the injection mold provided in an embodiment of the present application.

[0017] Figure 2 for Figure 1 The shown figure is a schematic cross-sectional view of the injection mold along the II-II direction.

[0018] Figure 3 for Figure 2 A partial enlarged schematic diagram of position III in the injection mold is shown.

[0019] Figure 4 for Figure 2 The three-dimensional structural schematic diagram of the push assembly and the rotating part is shown.

[0020] Figure 5 for Figure 4 The limiting member is shown as a schematic cross-sectional view along the V-V direction.

[0021] Figure 6 for Figure 2 The shown schematic diagram is a partial enlargement of the injection mold at position VI.

[0022] Main component symbols

[0023] Injection mold 100

[0024] Upper mold 10

[0025] Lower die 20

[0026] Lower template 21

[0027] Guide groove 211

[0028] Ejector plate 22

[0029] Upper plate 221

[0030] Lower top plate 222

[0031] Ventilation slot 2221

[0032] Mounting slot 2222

[0033] Fixed plate 23

[0034] Avoidance slot 231

[0035] Push assembly 30

[0036] Gas flow channel 31

[0037] Push piece 32

[0038] Through slot 321

[0039] Internal thread 322

[0040] Limiting piece 33

[0041] Connecting groove 331

[0042] Connection part 332

[0043] Air Inlet 3321

[0044] Air hole 3322

[0045] External thread 3323

[0046] Limiting part 333

[0047] Rotating member 40

[0048] Oblique hole 41

[0049] Storage slot 42

[0050] Jet Zone 43

[0051] Connecting piece 50

[0052] Trachea 60

[0053] Seal 70

[0054] Guide 80 DETAILED DESCRIPTION

[0055] In order to more clearly understand the purpose, features and advantages of the present application, the present application is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth to facilitate a full understanding of the present application, and the embodiments described are only a part of the embodiments of the present application, rather than all of the embodiments.

[0056] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0057] See also Figure 1 and Figure 2 The embodiment of the present application provides an injection mold 100, which includes an upper mold 10 and a lower mold 20 that are opened and matched, a push assembly 30 and a rotating member 40, and the injection mold 100 is used to mold products.

[0058] See also Figure 2 , Figure 3 and Figure 4 The push assembly 30 is movably installed in the lower mold 20 and is provided with a gas flow channel 31 connected to an external gas source. The rotating member 40 is sleeved on one end of the push assembly 30 adjacent to the upper mold 10 and is rotatably connected to the push assembly 30. A plurality of inclined holes 41 connected to the gas flow channel 31 are arranged at intervals on the circumference of the rotating member 40. The extending direction of each inclined hole 41 forms a preset angle with the horizontal direction. When the mold is opened, the push assembly 30 drives the rotating member 40 to extend out of the lower mold 20, and transports the gas provided by the external gas source to the plurality of inclined holes 41 through the gas flow channel 31. The gas is ejected through the plurality of inclined holes 41 to drive the rotating member 40 to rotate, so as to clean the lower mold 20, for example, to clean the area adjacent to the push assembly 30 on the upper surface of the lower mold 20.

[0059] In the above-mentioned injection mold 100, when the injection mold 100 is opened, the push assembly 30 drives the rotating part 40 to extend out of the lower mold 20, and the gas provided by the external gas source is transported to the multiple inclined holes 41 connected to the gas flow channel 31 through the gas flow channel 31, so that the gas can be ejected through the multiple inclined holes 41 respectively and apply a driving force to the rotating part 40, so that the rotating part 40 rotates under the drive of the gas, so that the gas ejected from the multiple inclined holes 41 can quickly clean the injection mold 100, without the need for manual cleaning, thereby improving the cleaning efficiency.

[0060] In this embodiment, the opening of the inclined hole 41 faces the upper surface of the lower mold 20 when the injection mold 100 is in the mold opening state. Since the debris and impurities remaining in the injection mold 100 will adhere to the upper surface of the lower mold 20 under the action of gravity, by setting the opening of the inclined hole 41 to be tilted downward, the gas can be accurately ejected toward the upper surface of the lower mold 20 through the plurality of inclined holes 41, so that the injection mold 100 can accurately clean the debris and impurities, thereby improving the cleaning accuracy. It can be understood that the opening direction of the inclined hole 41 can also be adaptively adjusted according to the cleaning requirements of the injection mold 100, so that the gas can clean the target area in the injection mold 100, which will not be repeated here.

[0061] See also Figure 3 and Figure 4In some embodiments, the push assembly 30 includes a push member 32 and a stopper 33. The push member 32 is movably disposed in the lower mold 20 and is provided with a through groove 321 connected to an external gas source along the mold opening direction. The stopper 33 is disposed in the rotating member 40 and is detachably connected to the push member 32. The stopper 33 is provided with a connecting groove 331, which is connected to the through groove 321 to form a gas flow channel 31. The rotating member 40 is rotatably connected to the stopper 33 and / or the push member 32. The stopper 33 is used to limit the rotating member 40 and transport the gas to the plurality of inclined holes 41 through the connecting groove 331.

[0062] In this way, by setting the specific structure of the above-mentioned pushing assembly 30, a split structure can be formed between the pushing member 32 and the limiting member 33, which is convenient for disassembly and assembly and maintenance of the rotating member 40 and the pushing assembly 30. At the same time, the limiting member 33 can limit the rotating member 40 to prevent the rotating member 40 from separating from the pushing assembly 30 during rotation.

[0063] See also Figure 4 and Figure 5 In some embodiments, the limiting member 33 includes a connecting portion 332 and a limiting portion 333. The connecting portion 332 is detachably connected to the push member 32 and is provided with an air inlet groove 3321 and a plurality of air holes 3322. The air inlet groove 3321 is arranged along the mold opening direction and communicates with the through groove 321. The plurality of air holes 3322 are arranged at intervals along the circumference of the connecting portion 332 and are respectively communicated with the air inlet groove 3321 to form a communicating groove 331. The plurality of air holes 3322 are used to transport the gas received by the air inlet groove 3321 to the plurality of inclined holes 41. The limiting portion 333 is connected to the connecting portion 332 and is clearance-matched with the rotating member 40. The limiting portion 333 is used to limit the rotating member 40 to the push member 32.

[0064] Thus, by providing the air inlet groove 3321 and the plurality of air holes 3322 of the connecting portion 332, when the rotating member 40 is rotating, the plurality of air holes 3322 can deliver the gas received by the air inlet groove 3321 to the plurality of inclined holes 41, thereby preventing the plurality of inclined holes 41 from being misaligned with the connecting groove 331 during the rotation of the rotating member 40, thereby preventing the gas from being unable to be delivered to the plurality of inclined holes 41. In addition, by providing the aforementioned limiting portion 333 with a clearance fit with the rotating member 40, a certain distance can be provided between the limiting portion 333 and the rotating member 40, thereby preventing the rotating member 40 from being unable to rotate due to excessive friction between the pushing member 32 and the limiting portion 333 when the limiting portion 333 presses the rotating member 40 against the pushing member 32, thereby facilitating the normal rotation of the rotating member 40.

[0065] It can be understood that a molding structure (not shown) is provided on the end face of the limiting portion 333 away from the connecting portion 332. When the injection mold 100 is closed, the ejection assembly 30 drives the limiting portion 333 to retract the lower mold 20, so that the molding structure cooperates with the lower mold 20 and the upper mold 10 to form a molding cavity.

[0066] Please continue reading Figure 4 and Figure 5 In some embodiments, the end of the connecting portion 332 adjacent to the pushing member 32 is provided with an external thread 3323, and one end of the through groove 321 adjacent to the limiting member 33 is provided with an internal thread 322 adapted to the external thread 3323, and the limiting member 33 and the pushing member 32 are threadedly connected through the external thread 3323 and the internal thread 322. It can be understood that in other embodiments, the limiting member 33 and the pushing member 32 can also be plugged in and out, so that the pushing member 32 and the limiting member 33 can be detachably connected.

[0067] In this way, by setting the above-mentioned external thread 3323 and internal thread 322, the limit member 33 and the push member 32 can be threadedly connected, thereby realizing the function of a detachable connection between the limit member 33 and the push member 32. At the same time, it is also convenient to adjust the distance between the limit part 333 and the rotating member 40, so that a clearance fit is achieved between the limit part 333 and the rotating member 40, thereby preventing the limit member 33 from abutting the rotating member 40 to the push member 32, thereby preventing the rotating member 40 from being unable to rotate due to the inability to rotate.

[0068] See also Figure 4 In some embodiments, the rotating member 40 is provided with a receiving groove 42 for receiving the connecting portion 332 . The receiving groove 42 penetrates the rotating member 40 along the mold opening direction and is respectively connected to the plurality of inclined holes 41 . The inner diameter of the receiving groove 42 is greater than the diameter of the connecting portion 332 .

[0069] In this way, by setting the inner diameter of the above-mentioned storage groove 42 to be larger than the diameter of the connecting part 332, a certain distance can be formed between the groove wall of the storage groove 42 and the outer periphery of the connecting part 332, thereby preventing the rotating part 40 from interfering with or colliding with the connecting part 332 during rotation and becoming unable to rotate, thereby improving the rotation stability of the rotating part 40.

[0070] In some embodiments, the rotating member 40 is provided with a plurality of injection areas 43 in sequence along the mold opening direction, and each injection area 43 is provided with a plurality of inclined holes 41 at intervals along the circumference of the rotating member 40 .

[0071] Thus, by providing the above-mentioned multiple injection areas 43 , the quantity and range of the gas ejected by the rotating part 40 through the inclined hole 41 can be increased, thereby increasing the cleaning range of the gas ejected by the rotating part 40 , and further improving the cleaning ability of the injection mold 100 .

[0072] See also Figure 2 and Figure 6 In some embodiments, the lower mold 20 is provided with a lower mold plate 21, an ejector plate 22 and a fixed plate 23 in sequence along the mold opening direction. The lower mold plate 21 is adjacent to the upper mold 10 relative to the ejector plate 22. The opposite sides of the ejector plate 22 are respectively in contact with the lower mold plate 21 and the fixed plate 23. The ejector assembly 30 passes through the lower mold plate 21 and the ejector plate 22 in sequence. The injection mold 100 also includes a connecting piece 50, which is embedded in the side of the ejector plate 22 facing the fixed plate 23 and is connected to the external gas source through the air pipe 60. The connecting piece 50 is used to conduct the gas provided by the external gas source to the gas flow channel 31 through the air pipe 60.

[0073] In this way, when the gas provided by the external gas source is transported to the connecting piece 50 through the gas pipe 60, the connecting piece 50 can stably introduce the received gas into the gas flow channel 31, thereby improving the stability of gas transportation.

[0074] Please continue reading Figure 6 In some embodiments, the ejector plate 22 includes an upper top plate 221 and a lower top plate 222, which are sequentially arranged and connected along the mold opening direction, and the upper top plate 221 and the lower top plate 222 are respectively abutted against the lower mold plate 21 and the fixing plate 23, and the ejection assembly 30 is penetrated through the upper top plate 221 and abutted against the lower top plate 222, and the lower top plate 222 is sequentially provided with a venting groove 2221 and a mounting groove 2222 that are connected along the mold opening direction, the venting groove 2221 is connected to the gas flow channel 31, and the mounting groove 2222 is connected to the venting groove 2221 and accommodates the connecting piece 50. The injection mold 100 also includes a sealing member 70, which is surrounded by the venting groove 2221 and abutted against the ejection assembly 30 and the lower top plate 222. In this embodiment, the sealing member 70 can be a sealing ring.

[0075] In this way, by surrounding the ventilation groove 2221 and respectively abutting against the push assembly 30 and the lower top plate 222, the sealing member 70 can maintain a sealed environment of the gas flow channel 31 and prevent gas from overflowing from the connection between the gas flow channel 31 and the ventilation groove 2221, so that the gas can be stably transported to the gas flow channel 31 through the ventilation groove 2221, thereby improving the stability of gas transportation.

[0076] In some embodiments, the fixing plate 23 is provided with an avoidance groove 231 , and one end of the avoidance groove 231 is connected to the mounting groove 2222 . One end of the avoidance groove 231 is opened on the side wall of the fixing plate 23 . The avoidance groove 231 is used to receive and avoid the air pipe 60 .

[0077] Since an external driving device is provided on the side of the fixed plate 23 facing away from the ejection plate 22, the external driving device passes through the fixed plate 23 and drives the ejection plate 22 to move. In this way, by providing an avoidance groove 231, and providing one end of the avoidance groove 231 to be opened on the side wall of the fixed plate 23, the avoidance groove 231 can accommodate and avoid the air pipe 60, thereby preventing interference between the air pipe 60 and the external driving device, which is beneficial to ensuring the normal operation of the injection mold 100.

[0078] See also Figure 1 In some embodiments, a guide groove 211 is provided on the side of the lower mold plate 21 facing the upper mold 10, and the injection mold 100 also includes a guide member 80, which is arranged opposite to the guide groove 211 and connected to the upper mold 10, and the guide member 80 is used to be inserted into the guide member 80 to guide the upper mold 10 and the lower mold 20 to close the mold.

[0079] In this way, when the injection mold 100 is closed, the guide member 80 can be inserted into the guide groove 211 to guide the upper mold 10 and the lower mold 20, so that the upper mold 10 and the lower mold 20 are stably closed, so that the upper mold 10, the lower mold 20 and the ejection assembly 30 can stably form a molding cavity for the injection molded product, thereby improving the injection stability of the injection mold 100.

[0080] The working process of the above-mentioned injection mold 100 is roughly as follows:

[0081] First, the upper mold 10 and the lower mold 20 are closed, and the push member 32 drives the limit member 33 and the rotating member 40 to retract into the lower mold 20, so that the molding structure provided on the end surface of the limit member 33 cooperates with the lower mold 20 and the upper mold 10 to form a molding cavity for the injection molded product;

[0082] Then, the upper mold 10 and the lower mold 20 are opened, and the push member 32 drives the limiting member 33 and the rotating member 40 to extend out of the lower mold 20, so that the end of the limiting member 33 pushes the molded product out of the molding cavity;

[0083] Finally, the external gas source transports gas to the connecting piece 50 through the air pipe 60, and the connecting piece 50 transports the received gas to the gas flow channel 31. The gas is transported to the multiple inclined holes 41 through the through groove 321, the air inlet groove 3321, and the multiple air holes 3322 in turn. Then the gas is ejected through the multiple inclined holes 41 and applies a driving force to the rotating part 40, so that the rotating part 40 rotates under the drive of the gas, so that the gas ejected from the multiple inclined holes 41 can quickly clean the lower mold 20, without the need for manual cleaning, thereby improving the cleaning efficiency.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. An injection mold, comprising an upper mold and a lower mold that are adapted to be opened, characterized in that: The injection mold further comprises: A push assembly, movably disposed on the lower mold and provided with a gas flow channel connected to an external gas source; A rotating member is sleeved on one end of the ejection assembly adjacent to the upper mold and is rotatably connected to the ejection assembly, a plurality of inclined holes connected to the gas flow channel are arranged at intervals on the circumference of the rotating member, and an extending direction of each of the inclined holes forms a preset angle with the horizontal direction; Among them, the pushing assembly drives the rotating part to extend out of the lower mold when opening the mold, and transports the gas provided by the external gas source to the multiple inclined holes through the gas flow channel. The gas is ejected through the multiple inclined holes to drive the rotating part to rotate to clean the lower mold.

2. The injection mold according to claim 1, characterized in that: The push assembly comprises: A push piece, movably arranged on the lower mold and provided with a through groove connected with the external air source along the mold opening direction; A limiting member is passed through the rotating member and is detachably connected to the pushing member. The limiting member is provided with a communicating groove, and the communicating groove is connected with the through groove to form the gas flow channel. The rotating member is rotatably connected to the limiting member and / or the pushing member. The limiting member is used to limit the rotating member and transport the gas to the plurality of inclined holes through the communicating groove.

3. The injection mold according to claim 2, characterized in that: The limiting member comprises: A connecting portion, detachably connected to the push member and provided with an air inlet groove and a plurality of air holes, wherein the air inlet groove is arranged along the mold opening direction and communicated with the through groove, and the plurality of air holes are arranged at intervals along the circumference of the connecting portion and are respectively communicated with the air inlet groove to form the communicating groove, and the plurality of air holes are used to transport the gas received by the air inlet groove to the plurality of inclined holes; A limiting portion is connected to the connecting portion and is clearance-matched with the rotating member, and the limiting portion is used to limit the rotating member to the pushing member.

4. The injection mold according to claim 3, characterized in that: The end of the connecting portion adjacent to the pushing member is provided with an external thread, and one end of the through groove adjacent to the limiting member is provided with an internal thread matched with the external thread, and the limiting member and the pushing member are threadedly connected via the external thread and the internal thread.

5. The injection mold according to claim 4, characterized in that: The rotating member is provided with a receiving groove for receiving the connecting portion, the receiving groove penetrates the rotating member along the mold opening direction and is respectively connected with the plurality of inclined holes, and the inner diameter of the receiving groove is greater than the diameter of the connecting portion.

6. The injection mold according to claim 1, characterized in that: The rotating member is provided with a plurality of injection areas in sequence along the mold opening direction, and each of the injection areas is provided with a plurality of the inclined holes at intervals along the circumference of the rotating member.

7. The injection mold according to claim 1, characterized in that: The lower mold is provided with a lower mold plate, an ejector plate and a fixed plate in sequence along the mold opening direction, the lower mold plate is adjacent to the upper mold relative to the ejector plate, opposite sides of the ejector plate are respectively abutted against the lower mold plate and the fixed plate, and the ejection assembly passes through the lower mold plate and the ejector plate in sequence; The injection mold also includes a connecting piece, which is embedded in the side of the ejection plate facing the fixed plate and is connected to the external gas source through an air pipe. The connecting piece is used to conduct the gas provided by the external gas source into the gas flow channel through the air pipe.

8. The injection mold according to claim 7, characterized in that: The ejector plate comprises an upper top plate and a lower top plate, the upper top plate and the lower top plate are sequentially arranged and connected along the mold opening direction, the upper top plate and the lower top plate are respectively abutted against the lower mold plate and the fixing plate, the ejection assembly is penetrated through the upper top plate and abutted against the lower top plate, the lower top plate is sequentially provided with a connected venting groove and a mounting groove along the mold opening direction, the venting groove is connected to the gas flow channel, and the mounting groove is connected to the venting groove and accommodates the connecting piece; The injection mold further comprises a sealing member, which is arranged around the vent groove and respectively abuts against the ejection assembly and the lower ejector plate.

9. The injection mold according to claim 8, characterized in that: The fixing plate is provided with an avoidance groove, and one end of the avoidance groove is communicated with the mounting groove, and one end of the avoidance groove is opened on the side wall of the fixing plate, and the avoidance groove is used to receive and avoid the air pipe.

10. The injection mold according to claim 7, characterized in that: A guide groove is provided on one side of the lower mold plate toward the upper mold, and the injection mold further comprises a guide member, which is arranged opposite to the guide groove and connected to the upper mold, and is used to be inserted into the guide groove to guide the upper mold and the lower mold to close the mold.

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