Deep cavity injection mold

Abstract

The present application discloses a deep cavity injection mold, which includes a mold assembly, a demoulding mechanism and a driving mechanism. The demoulding mechanism includes a first push plate and a second push plate, wherein the first push plate is suitable for abutting against the edge of the plastic part, and the second push plate is suitable for abutting against the bottom wall of the plastic part; the driving mechanism includes a first ejection assembly, a second ejection assembly and a driving assembly, wherein the first ejection assembly is connected and matched with the first push plate, and the second ejection assembly is connected and matched with the second push plate, and the first ejection assembly and the second ejection assembly are arranged oppositely and spaced apart to form a pre-shrinkage gap, and the driving assembly is used to drive the first ejection assembly and the second ejection assembly to move closer to or away from the lower mold. Compared with the prior art, when the plastic part shrinks along the height direction of the plastic part, the separation of the plastic part from the demoulding mechanism can be avoided, thereby avoiding cracks in the plastic part during the ejection process of the plastic part, and further improving the product quality of the plastic part.

Description

Technical Field

[0001] The present application relates to the field of injection molds, and in particular to a deep cavity injection mold. Background Art

[0002] In the prior art, deep cavity injection molds are used to injection mold plastic parts with larger height dimensions. After the plastic parts with larger height dimensions are cooled and formed, the plastic parts will shrink along the height direction of the plastic parts, causing the plastic parts to be separated from the partial ejection parts of the demolding mechanism of the deep cavity injection mold, and the plastic parts will shrink toward the inside of the plastic parts, causing the plastic parts to be wrapped around the outside of the core of the lower mold. When the demolding mechanism ejects the plastic parts, the ejection parts of the demolding mechanism that are in contact with the plastic parts only apply force to a partial position of the plastic parts, causing the position of the plastic parts that are separated from the partial ejection parts to remain in a fixed position relative to the lower mold, thereby causing the plastic parts to be pulled by the partial ejection parts that are in contact with the plastic parts, which can easily cause cracks to appear on the surface of the plastic parts, thereby reducing the product quality of the plastic parts. Summary of the invention

[0003] In order to improve the product quality of plastic parts, the present application provides a deep cavity injection mold.

[0004] The deep cavity injection mold provided in this application adopts the following technical solution:

[0005] A deep cavity injection mold comprises: a mold assembly, the mold assembly comprises an upper mold and a lower mold, the upper mold is arranged opposite to the lower mold, and an injection gap is defined between the upper mold and the lower mold; a demolding mechanism, the demolding mechanism is movably mounted on the lower mold, the demolding mechanism comprises a first push plate and a second push plate, the first push plate is suitable for abutting against the edge of a plastic part molded in the injection gap, and the second push plate is suitable for abutting against the bottom wall of the plastic part.

[0006] A driving mechanism, wherein the driving mechanism is located at a side of the lower mold away from the upper mold, the driving mechanism comprises a first ejection assembly, a second ejection assembly and a driving assembly, the first ejection assembly is connected and cooperated with the first push plate, the second ejection assembly is connected and cooperated with the second push plate, the first ejection assembly is located at a side of the second ejection assembly away from the lower mold, and the first ejection assembly and the second ejection assembly are opposite and spaced apart to form a pre-shrinkage gap, the driving assembly is connected and cooperated with both the first ejection assembly and the second ejection assembly, the driving assembly is used to drive the first ejection assembly to drive the first push plate to move closer to or away from the lower mold, and is also used to drive the second ejection assembly to drive the second push plate to move closer to or away from the lower mold, and is also used to drive the first ejection assembly to move closer to or away from the second ejection assembly, so as to move the first push plate closer to or away from the second push plate.

[0007] By adopting the above technical solution, a pre-shrinkage gap is formed by the first ejector assembly and the second ejector assembly being arranged opposite to each other and spaced apart, and the height dimension of the pre-shrinkage gap is equal to the shrinkage dimension of the plastic part in the height direction. The driving assembly first drives the first ejector assembly to move close to the lower mold so that the first push plate stops against the edge of the plastic part, and then the driving assembly drives the first ejector assembly and the second ejector assembly to eject the plastic part together. Compared with the prior art, when the plastic part shrinks along the height direction of the plastic part, the separation of the plastic part and the demoulding mechanism can be avoided, thereby avoiding cracks in the plastic part during the process of ejecting the plastic part, and further improving the product quality of the plastic part.

[0008] Preferably, the first ejection assembly includes a first ejection plate, a second ejection plate, a locking piece and an elastic piece, the first ejection plate and the second ejection plate are connected and cooperated, the first ejection plate is located on a side of the second ejection plate away from the lower mold, the first push plate is connected and cooperated with the second ejection plate, the first ejection plate and the second ejection plate jointly define an avoidance channel, and the first ejection plate is provided with a receiving groove, the receiving groove is communicated with the avoidance channel, the locking piece is provided in the receiving groove, the elastic piece can be elastically deformably arranged between the locking piece and the groove bottom of the receiving groove, the locking piece is suitable for extending into or moving out of the avoidance channel, the driving assembly passes through the avoidance channel and extends into the second ejection assembly, and the locking piece is stopped or separated from the driving assembly to lock or unlock the driving assembly and the first ejection assembly.

[0009] By adopting the above technical solution, the driving assembly and the first ejection assembly are locked by the locking member, so that the driving assembly drives the first ejection assembly to move closer to or away from the lower mold. When the locking member is separated from the driving assembly, the first ejection assembly remains at a fixed position relative to the lower mold, and the driving assembly drives the second ejection assembly to move closer to the lower mold, so that the second ejection assembly drives the second push plate to completely eject the plastic part from the lower mold.

[0010] Preferably, the lower mold is provided with an unlocking member, and the first ejection plate, the second ejection plate and the second ejection assembly jointly define an unlocking channel, the unlocking channel is connected to the accommodating groove, the unlocking member passes through the unlocking channel, and the unlocking member is suitable for extending into the accommodating groove to stop with the locking member, and the unlocking member is used to drive the locking member to extend into the accommodating groove to unlock the locking member and the driving assembly.

[0011] By adopting the above technical solution, the unlocking member passes through the unlocking channel and extends into the accommodating groove, and the unlocking member abuts against the locking member to drive the locking member to extend into the accommodating groove, thereby achieving the technical effect of unlocking the locking member and the driving component, and further achieving the technical effect of the driving component alone driving the second ejection component to drive the second push plate to completely eject the plastic part from the lower mold.

[0012] Preferably, a side wall of the second ejector plate opposite to the second ejector assembly is provided with an adjusting member, the adjusting member protrudes toward the second ejector plate, the adjusting member is spaced apart from the second ejector assembly to form an adjusting gap, and is suitable for adjusting the spacing distance of the pre-shrinkage gap by adjusting the gap distance of the adjusting gap.

[0013] By adopting the above technical solution, when the shrinkage dimension of the plastic part along the height direction of the plastic part is smaller than the preset shrinkage dimension of the plastic part, the designer can adjust the gap distance of the adjustment gap by replacing the adjustment parts with different height sizes, thereby adjusting the spacing distance of the pre-shrinkage gap, and can make the spacing distance of the pre-shrinkage gap equal to the actual shrinkage dimension of the plastic part, so that the first push plate can stop against the edge of the plastic part, which can improve the user experience of the deep cavity injection mold.

[0014] Preferably, there are a plurality of adjusting members, and the plurality of adjusting members are sequentially spaced apart and arranged along the circumferential direction of the deep cavity injection mold.

[0015] By adopting the above technical solution, multiple adjustment members can jointly stop the second ejection assembly. Compared with setting one adjustment member on the second ejection plate, when the driving assembly drives the first ejection assembly and the second ejection assembly to move close to the lower mold, the first ejection assembly is easy to flip relative to the second ejection assembly. In this way, the second ejection plate is set to apply an upward thrust to the second ejection assembly through multiple adjustment members, thereby preventing the first ejection assembly from flipping relative to the second ejection assembly, thereby improving the working reliability of the deep cavity injection mold.

[0016] Preferably, the driving assembly includes a driving rod, which is extended along the height direction of the deep cavity injection mold, and the driving rod passes through the avoidance channel and extends into the second ejection assembly. There are multiple driving rods, and the multiple driving rods are sequentially spaced apart along the circumferential direction of the deep cavity injection mold. There are multiple locking members, and the multiple locking members are locked with the driving rods.

[0017] By adopting the above technical solution, multiple driving rods are used to simultaneously drive the first ejector assembly to move closer to or away from the lower mold, and simultaneously drive the second ejector assembly to move closer to or away from the lower mold. In this way, when one of the multiple driving rods is damaged, the other undamaged driving rods can continue to drive the first ejector assembly and the second ejector assembly to move, thereby improving the working reliability of the deep cavity injection mold.

[0018] Preferably, the second ejector assembly includes a third ejector plate and a fourth ejector plate, the third ejector plate and the fourth ejector plate are connected and cooperated, the third ejector plate is located on a side of the fourth ejector plate away from the lower mold, the second push plate is connected and cooperated with the fourth ejector plate, the third ejector plate is provided with a stop groove and an avoidance hole extending along the thickness direction of the third ejector plate, the radial dimension of the stop groove is greater than the radial dimension of the avoidance hole, and the avoidance hole is located at the bottom of the stop groove, and the stop groove is located on the side wall of the third ejector plate opposite to the fourth ejector plate.

[0019] The driving assembly includes a driving rod, which is extended along the height direction of the deep cavity injection mold, and passes through the first ejection assembly and extends into the third ejection plate. A stop portion is provided at the end of the driving rod extending into the third ejection plate, and the stop portion is movably arranged in the stop groove, and the stop portion is suitable for moving along the stop groove between the bottom of the stop groove and the fourth ejection plate.

[0020] By adopting the above technical solution, the driving rod moves close to the lower mold so that the upper end wall of the stop part abuts against the fourth ejector plate, thereby achieving the technical effect that the driving rod drives the second ejector assembly to move close to the lower mold through the driving part. When the plastic part is ejected from the lower mold by the demolding mechanism, the driving rod moves away from the lower mold so that the lower end wall of the stop part abuts against the bottom of the stop groove, thereby achieving the technical effect that the driving rod drives the second ejector assembly to move away from the lower mold through the driving part.

[0021] Preferably, the deep cavity injection mold further comprises: a bottom plate, a reset member, a reset detection member and a controller, wherein the bottom plate is located on a side of the first ejection assembly away from the second ejection assembly, the reset detection member is arranged in the bottom plate, one end of the reset member is connected and cooperated with the second ejection assembly, the other end of the reset member passes through the first ejection assembly and is suitable for extending into the bottom plate to stop with the reset detection member, the reset detection member is used to detect the positions of the first ejection assembly and the second ejection assembly, the controller is communicatively connected to the reset detection member, and the controller is used to control the clamping of the lower mold and the upper mold according to the detection signal of the reset detection member.

[0022] By adopting the above technical solution, the reset member and the reset detection member are stopped, and the reset detection member sends a detection signal to the controller. The controller controls the lower mold and the upper mold to close the mold according to the detection signal of the reset detection member, thereby realizing the automated production of plastic parts by deep cavity injection molds.

[0023] Preferably, the driving mechanism further includes a first limiting member, one end of which is connected and cooperated with the first ejection assembly, and the other end of the first limiting member passes through the second ejection assembly and is suitable for abutting against or separating from the lower mold, so that the first ejection assembly is limited by abutting against the lower mold by the first limiting member.

[0024] By adopting the above technical solution, when the upper end wall of the first limit member stops against the lower mold, the plastic part has just separated from the lower mold. The designer can adjust the height size of the first limit member according to the movement of the first push plate and the second push plate away from the lower mold together and the movement distance of the plastic part just ejected from the lower mold, so that the deep cavity injection mold can match plastic parts of different height sizes.

[0025] Preferably, the driving mechanism further includes a second limiting member, one end of which is connected and cooperated with the second ejection assembly, and the other end of which is movably arranged in the first ejection assembly, and the other end of which is suitable for limiting and cooperating with the first ejection assembly.

[0026] By adopting the above technical solution, when the lower end of the second limit member is limitedly matched with the first ejection assembly, the second push plate completely ejects the plastic part from the lower mold, and the spacing distance between the lower end of the second limit member and the first ejection assembly is the movement distance of the second push plate to completely eject the plastic part from the lower mold. Designers can replace different second limit members to adjust the spacing distance between the lower end of the second limit member and the first ejection assembly according to the movement distance of the second push plate to completely eject different plastic parts from the lower mold, so that the deep cavity injection mold can match different plastic parts.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. A pre-shrinkage gap is formed by the first ejector assembly and the second ejector assembly being arranged opposite to each other and spaced apart. The height dimension of the pre-shrinkage gap is equal to the shrinkage dimension of the plastic part in the height direction. The driving assembly first drives the first ejector assembly to move close to the lower mold so that the first push plate abuts against the edge of the plastic part. Then, the driving assembly drives the first ejector assembly and the second ejector assembly to eject the plastic part together. Compared with the prior art, when the plastic part shrinks in the height direction of the plastic part, the separation of the plastic part from the demoulding mechanism can be avoided, thereby avoiding cracks in the plastic part during the ejection process, thereby improving the product quality of the plastic part.

[0029] 2. The first ejector assembly is driven to move toward or away from the lower mold by multiple driving rods at the same time, and the second ejector assembly is driven to move toward or away from the lower mold at the same time. In this way, when one of the multiple driving rods is damaged, the other undamaged driving rods can continue to drive the first ejector assembly and the second ejector assembly to move, thereby improving the working reliability of the deep cavity injection mold;

[0030] 3. The reset member abuts against the reset detection member, and the reset detection member sends a detection signal to the controller. The controller controls the injection molding machine to drive the lower mold to move closer to the upper mold according to the detection signal of the reset detection member, so that the lower mold and the upper mold are closed, thereby realizing the automatic production of plastic parts by deep cavity injection molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of a partial structure of a deep cavity injection mold according to an embodiment of the present application;

[0032] Figure 2 is a cross-sectional view of a partial structure of a deep cavity injection mold according to an embodiment of the present application;

[0033] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0034] Figure 4 is a cross-sectional view of a part of the structure of the deep cavity injection mold according to an embodiment of the present application at another angle;

[0035] Figure 5 yes Figure 4 A partial enlarged view of the middle A;

[0036] Figure 6 is a cross-sectional view of a part of the structure of the deep cavity injection mold according to an embodiment of the present application at another angle;

[0037] Figure 7 is a cross-sectional view of a part of the structure of the deep cavity injection mold according to an embodiment of the present application at another angle;

[0038] Figure 8 is a schematic diagram from another angle of a partial structure of a deep cavity injection mold according to an embodiment of the present application;

[0039] Fig. 9 yes Figure 8 A partial enlarged view of the middle A;

[0040] Fig.10 is a cross-sectional view of a part of the structure of the deep cavity injection mold according to an embodiment of the present application at another angle;

[0041] Fig.11 yes Fig.10 A partial enlarged view of the middle A;

[0042] Fig.12 It is a cross-sectional view from another angle of a partial structure of the deep cavity injection mold described in an embodiment of the present application.

[0043] Description of reference numerals:

[0044] 100. Deep cavity injection mold;

[0045] 10. mold assembly; 101. lower mold; 102. unlocking piece;

[0046] 20. Demolding mechanism; 201. First push plate; 202. Second push plate; 203. First connecting rod; 204. Second connecting rod;

[0047] 30. Driving mechanism; 301. First ejection assembly; 3011. First ejection plate; 3012. Second ejection plate; 3013. Locking member; 3014. Elastic member; 3015. Avoidance channel; 3016. Accommodating groove; 3017. Adjusting member; 302. Second ejection assembly; 3021. Third ejection plate; 3022. Fourth ejection plate; 3023. Avoidance hole; 3024. Stop groove; 303. Driving assembly; 3031. Driving rod; 3032. Stopping part; 304. Pre-shrinkage gap; 305. Unlocking channel; 306. Adjusting gap;

[0048] 40. Bottom plate; 50. Resetting member; 60. Resetting detection member; 70. First limiting member; 80. Second limiting member. DETAILED DESCRIPTION

[0049] The following is combined with Figure 1-Figure 12 This application is described in further detail.

[0050] The embodiment of the present application discloses a deep cavity injection mold 100 .

[0051] Reference Figure 1-Figure 3 According to the embodiment of the present application, the deep cavity injection mold 100 includes: a mold assembly 10, a demolding mechanism 20 and a driving mechanism 30. The mold assembly 10 includes an upper mold and a lower mold 101, which are arranged opposite to each other, and an injection gap is defined between the upper mold and the lower mold 101. Specifically, when the upper mold and the lower mold 101 are stopped, an injection gap is defined between the upper mold and the lower mold 101, and molten plastic particles flow into the injection gap through the feed port and the liquid flow channel of the deep cavity injection mold 100, and the molten plastic particles are cooled and formed in the injection gap to form a plastic part.

[0052] The demoulding mechanism 20 is movably mounted on the lower mold 101. The demoulding mechanism 20 includes a first push plate 201 and a second push plate 202. The first push plate 201 is suitable for abutting against the edge of the plastic part formed in the injection gap, and the second push plate 202 is suitable for abutting against the bottom wall of the plastic part. Specifically, along the height direction of the deep cavity injection mold 100, the height direction of the deep cavity injection mold 100 can refer to Figure 2 In the up and down direction, the first push plate 201 is located below the second push plate 202. After the plastic part is molded in the injection molding gap, the first push plate 201 abuts against the edge of the lower end of the plastic part, and the second push plate 202 abuts against the bottom wall of the upper end of the plastic part close to the lower mold 101. The first push plate 201 and the second push plate 202 are both suitable for moving close to or away from the lower mold 101. When the first push plate 201 and the second push plate 202 both move away from the lower mold 101, the first push plate 201 and the second push plate 202 jointly eject the plastic part from the lower mold 101. When the first push plate 201 and the second push plate 202 both move close to the lower mold 101, the first push plate 201 and the second push plate 202 are both reset to the initial state, and then the lower mold 101 moves close to the upper mold to re-mold a new plastic part in the injection molding gap.

[0053] Further, the driving mechanism 30 is located on the side of the lower mold 101 away from the upper mold, that is, the driving mechanism 30 is located below the lower mold 101, and the driving mechanism 30 includes a first ejector assembly 301, a second ejector assembly 302 and a driving assembly 303. The first ejector assembly 301 is connected and cooperated with the first push plate 201, and the second ejector assembly 302 is connected and cooperated with the second push plate 202. The first ejector assembly 301 is located on the side of the second ejector assembly 302 away from the lower mold 101, and the first ejector assembly 301 and the second ejector assembly 302 are opposite to and spaced apart from each other to form a pre-shrinkage gap 304. It should be noted that along the height direction of the deep cavity injection mold 100, the height dimension of the pre-shrinkage gap 304 is equal to the shrinkage dimension of the plastic part in the height direction, and the designer can obtain the shrinkage dimension of the plastic part in the height direction through experiments.

[0054] In addition, the driving assembly 303 is connected and cooperated with the first ejection assembly 301 and the second ejection assembly 302. The driving assembly 303 is used to drive the first ejection assembly 301 to drive the first push plate 201 to move closer to or away from the lower mold 101, and is also used to drive the second ejection assembly 302 to drive the second push plate 202 to move closer to or away from the lower mold 101, and is also used to drive the first ejection assembly 301 to move closer to or away from the second ejection assembly 302, so that the first push plate 201 moves closer to or away from the second push plate 202.

[0055] Specifically, in the process of the ejection mechanism of the deep cavity injection mold 100 ejecting the plastic part, the ejection action of the demolding mechanism 20 can be divided into a first ejection action, a second ejection action and a third ejection action. When the demolding mechanism 20 performs the first ejection action, the driving component 303 drives the first ejection component 301 to move close to the lower mold 101, and the second ejection component 302 remains at a fixed position relative to the lower mold 101. The first ejection component 301 drives the first push plate 201 to move away from the lower mold 101, so that the first push plate 201 stops at the edge of the lower end of the plastic part. When the first ejection component 301 stops at the second ejection component 302, the demolding mechanism 20 completes the first ejection action.

[0056] When the demolding mechanism 20 performs the second ejection action, the driving assembly 303 drives the first ejection assembly 301 to move close to the lower mold 101, and the first ejection assembly 301 drives the second ejection assembly 302 to move close to the lower mold 101, and the first push plate 201 and the second push plate 202 move away from the lower mold 101 together to separate the plastic part from the lower mold 101. When the first ejection assembly 301 and the second ejection assembly 302 both move close to the lower mold 101 to the first preset position, the demolding mechanism 20 completes the second ejection action.

[0057] When the demolding mechanism 20 performs the third ejection action, the driving assembly 303 drives the second ejection assembly 302 to move close to the lower mold 101, and the first ejection assembly 301 remains in a fixed position relative to the lower mold 101, and the second ejection assembly 302 drives the second push plate 202 to move away from the lower mold 101, and the second push plate 202 drives the plastic part to move away from the lower mold 101. When the second ejection assembly 302 moves to the second preset position, the second push plate 202 completely ejects the plastic part from the lower mold 101, and the operator or the robot arm can remove the plastic part from the second push plate 202.

[0058] It should be noted that the first preset position is the position of the first push plate 201 and the position of the second push plate 202 when the injection-molded part is just separated from the lower mold 101, and the second preset position is the position of the second push plate 202 when the second push plate 202 completely ejects the injection-molded part from the lower mold 101. When the injection-molded part is completely ejected from the lower mold 101, the spacing distance between the injection-molded part and the lower mold 101 can be set by the designer.

[0059] When the demolding mechanism 20 completes the ejection action, the driving assembly 303 drives the second ejection assembly 302 to move away from the lower mold 101. When the second ejection assembly 302 and the first ejection assembly 301 stop, the second ejection assembly 302 drives the first ejection assembly 301 to move away from the lower mold 101, so that the first ejection assembly 301 and the second ejection assembly 302 are reset to the initial state.

[0060] Thus, a pre-shrinkage gap 304 is formed by the first ejector assembly 301 and the second ejector assembly 302 being arranged opposite to and spaced apart from each other. The height dimension of the pre-shrinkage gap 304 is equal to the shrinkage dimension of the plastic part in the height direction. The driving assembly 303 first drives the first ejector assembly 301 to move close to the lower mold 101 so that the first push plate 201 stops against the edge of the plastic part, and then the driving assembly 303 drives the first ejector assembly 301 and the second ejector assembly 302 to eject the plastic part together. Compared with the prior art, when the plastic part shrinks along the height direction of the plastic part, the separation of the plastic part from the demolding mechanism 20 can be avoided, thereby avoiding cracks in the plastic part during the ejection process, thereby improving the product quality of the plastic part.

[0061] Reference Figure 2 and Figure 3 In some embodiments of the present application, the first ejection assembly 301 includes a first ejection plate 3011, a second ejection plate 3012, a locking member 3013 and an elastic member 3014, the first ejection plate 3011 and the second ejection plate 3012 are connected and matched, the first ejection plate 3011 is located on a side of the second ejection plate 3012 away from the lower mold 101, and the first push plate 201 is connected and matched with the second ejection plate 3012.

[0062] Further, refer to Figure 6 A first connecting rod 203 is arranged between the first push plate 201 and the second ejector plate 3012. Along the height direction of the deep cavity injection mold 100, the upper end of the first connecting rod 203 is connected and matched with the lower end of the first push plate 201, and the lower end of the first connecting rod 203 is connected and matched with the first ejector plate 3011, so that the first ejector plate 3011 can achieve the technical effect of driving the first push plate 201 to move closer to or away from the lower mold 101 through the first connecting rod 203.

[0063] Furthermore, there are multiple first connecting rods 203, and the multiple first connecting rods 203 are spaced apart along the circumferential direction of the deep cavity injection mold 100. By arranging multiple first connecting rods 203 between the first push plate 201 and the first ejector plate 3011, when the first ejector plate 3011 drives the first push plate 201 to move closer to or away from the lower mold 101, such an arrangement can minimize the uneven force applied by the first ejector plate 3011 to the first push plate 201, causing the first push plate 201 to flip over, thereby improving the working reliability of the deep cavity injection mold 100.

[0064] Further, the first ejector plate 3011 and the second ejector plate 3012 jointly define an avoidance channel 3015, and along the height direction of the deep cavity injection mold 100, the avoidance channel 3015 penetrates the first ejector plate 3011 and the second ejector plate 3012, the first ejector plate 3011 is provided with a receiving groove 3016, the receiving groove 3016 is communicated with the avoidance channel 3015, the locking member 3013 is provided in the receiving groove 3016, and the elastic member 3014 is elastically deformably provided between the locking member 3013 and the receiving groove 3016 The locking member 3013 is suitable for extending into or moving out of the avoidance channel 3015. Specifically, when the locking member is driven by an external force, the locking member moves out of the avoidance channel 3015. When the external force applied to the locking member is removed, the elastic member 3014 drives the locking member to extend into the avoidance channel 3015. The driving assembly 303 passes through the avoidance channel 3015 and extends into the second ejection assembly 302. The locking member 3013 stops or separates from the driving assembly 303 to lock or unlock the driving assembly 303 and the first ejection assembly 301.

[0065] Specifically, when the demoulding mechanism 20 performs the first ejection action, the locking member 3013 extends into the avoidance channel 3015 and abuts against the driving assembly 303 to lock the driving assembly 303 and the first ejection assembly 301, and the driving assembly 303 drives the first ejection assembly 301 to move closer to the lower mold 101. When the demoulding mechanism 20 performs the second ejection action, the locking member 3013 remains at a fixed position relative to the driving assembly 303, that is, the locking member 3013 is located in the avoidance channel 3015 and abuts against the driving assembly 303. When the demoulding mechanism 20 performs the third ejection action, the locking member 3013 moves out of the avoidance channel 3015 and separates from the driving assembly 303 to unlock the driving assembly 303 and the first ejection assembly 301, the driving assembly 303 moves closer to the lower mold 101 and drives the second ejection assembly 302 to move closer to the lower mold 101, and the second ejection assembly 302 drives the second push plate 202 to move away from the lower mold 101.

[0066] When the demolding mechanism 20 is reset, the driving assembly 303 moves away from the lower mold 101, and the driving assembly 303 drives the second ejection assembly 302 to move away from the lower mold 101. When the second ejection assembly 302 abuts against the first ejection assembly 301, the locking member 3013 extends into the avoidance channel 3015 and abuts against the driving assembly 303 to lock the driving assembly 303 and the first ejection assembly 301. The driving assembly 303 drives the first ejection assembly 301 and the second ejection assembly 302 to move away from the lower mold 101 to the initial position.

[0067] The driving assembly 303 and the first ejection assembly 301 are locked by the locking member 3013, so that the driving assembly 303 can drive the first ejection assembly 301 to move closer to or away from the lower mold 101. When the locking member 3013 is separated from the driving assembly 303, the first ejection assembly 301 remains at a fixed position relative to the lower mold 101, and the driving assembly 303 drives the second ejection assembly 302 to move closer to the lower mold 101, so that the second ejection assembly 302 drives the second push plate 202 to completely eject the plastic part from the lower mold 101.

[0068] In some specific embodiments, there can be two locking members 3013, two elastic members 3014 and two receiving grooves 3016. The two locking members 3013, two elastic members 3014 and two receiving grooves 3016 are symmetrically arranged along the central axis of the driving assembly 303. When one of the two locking members 3013 is damaged, the other undamaged locking member 3013 can continue to lock the driving assembly 303 and the first ejection assembly 301, thereby improving the working reliability of the deep cavity injection mold 100.

[0069] Reference Figure 4 and Figure 5 In some embodiments of the present application, the lower mold 101 is provided with an unlocking piece 102, and the first ejection plate 3011, the second ejection plate 3012 and the second ejection assembly 302 jointly define an unlocking channel 305, and the unlocking piece 102 is arranged opposite to the unlocking channel 305, the unlocking channel 305 is connected to the accommodating groove 3016, the unlocking piece 102 passes through the unlocking channel 305, and the unlocking piece 102 is suitable for extending into the accommodating groove 3016 to stop with the locking piece 3013, and the unlocking piece 102 is used to drive the locking piece 3013 to extend into the accommodating groove 3016 to unlock the locking piece 3013 and the driving assembly 303.

[0070] Specifically, when the demolding mechanism 20 completes the first ejection action and the second ejection action, and the driving component 303 drives the first ejection component 301 and the second ejection component 302 to move close to the lower mold 101, the unlocking member 102 passes through the unlocking channel 305 and extends into the accommodating groove 3016, and the unlocking member 102 and the locking member 3013 stop to drive the locking member 3013 to extend into the accommodating groove 3016, thereby achieving the technical effect of unlocking the locking member 3013 and the driving component 303, and further achieving the technical effect of the driving component 303 alone driving the second ejection component 302 to drive the second push plate 202 to completely eject the plastic part from the lower mold 101.

[0071] It should be noted that, when the first ejection assembly 301 and the second ejection assembly 302 are moving close to the lower mold 101 , the spacing distance between the unlocking member 102 and the locking member 3013 is gradually reduced along the height direction of the deep cavity injection mold 100 .

[0072] Furthermore, the lower end wall of the unlocking member 102 is configured as an inclined surface, and the upper end wall of the locking member 3013 is configured as an inclined surface. When the unlocking member 102 abuts against the locking member 3013, and the first ejection assembly 301 moves close to the lower mold 101, the unlocking member 102 can drive the locking member 3013 to extend into the accommodating groove 3016 through the abutment cooperation between the lower end wall of the unlocking member 102 and the upper end wall of the locking member 3013.

[0073] Reference Figure 8 and Fig. 9 In some embodiments of the present application, an adjusting member 3017 is provided on the side wall of the second ejector plate 3012 opposite to the second ejector assembly 302. Specifically, along the height direction of the deep cavity injection mold 100, an adjusting member 3017 is provided on the upper end wall of the second ejector plate 3012. The upper end wall of the adjusting member 3017 protrudes toward the second ejector plate 3012. The adjusting member 3017 is spaced apart from the second ejector assembly 302 to form an adjusting gap 306. Designers are suitable for adjusting the gap distance of the adjusting gap 306 to adjust the spacing distance of the pre-shrinkage gap 304.

[0074] When the shrinkage dimension of the plastic part along the height direction of the plastic part is smaller than the preset shrinkage dimension of the plastic part, the designer can adjust the gap distance of the adjustment gap 306 by replacing the adjustment part 3017 with different height dimensions, thereby adjusting the spacing distance of the pre-shrinkage gap 304. The spacing distance of the pre-shrinkage gap 304 can be made equal to the actual shrinkage dimension of the plastic part, thereby enabling the first push plate 201 to stop against the edge of the plastic part, thereby improving the user experience of the deep cavity injection mold 100.

[0075] Specifically, when the preset shrinkage size of the plastic part is 2 mm, the spacing distance of the pre-shrinkage gap 304 corresponds to 2 mm. When the plastic part is cooled and formed, the actual shrinkage size of the plastic part is 1 mm. By setting an adjustment member 3017 on the second ejector plate 3012, and the spacing distance between the upper end wall of the adjustment member 3017 and the upper end wall of the second ejector plate 3012 is 1 mm, the spacing distance of the pre-shrinkage gap 304 can be adjusted to 1 mm, so that the first push plate 201 can stop against the edge of the plastic part.

[0076] It should be noted that when designing a mold, the designer may design the spacing distance of the pre-shrinkage gap 304 according to the maximum preset shrinkage dimension of the plastic part.

[0077] Reference Figure 8and Fig. 9 In some embodiments of the present application, there are multiple adjusting members 3017, and the multiple adjusting members 3017 are sequentially spaced apart along the circumferential direction of the deep cavity injection mold 100. By arranging multiple adjusting members 3017 on the second ejector plate 3012, the multiple adjusting members 3017 can jointly stop the second ejector assembly 302. Compared with arranging one adjusting member 3017 on the second ejector plate 3012, when the driving assembly 303 drives the first ejector assembly 301 and the second ejector assembly 302 to move close to the lower mold 101, the first ejector assembly 301 is prone to flip over relative to the second ejector assembly 302. In this way, the second ejector plate 3012 is arranged to apply an upward thrust to the second ejector assembly 302 through the multiple adjusting members 3017, thereby preventing the first ejector assembly 301 from flipping over relative to the second ejector assembly 302, thereby improving the working reliability of the deep cavity injection mold 100.

[0078] Reference Figure 2 and Figure 3 In some embodiments of the present application, the driving assembly 303 includes a driving rod 3031, which is extended along the height direction of the deep cavity injection mold 100. The upper end of the driving rod 3031 passes through the avoidance channel 3015 and extends into the second ejector assembly 302. The lower end of the driving rod 3031 is connected to the injection molding machine. The injection molding machine drives the first ejector assembly 301 to move closer to or away from the lower mold 101 through the driving rod 3031, and drives the second ejector assembly 302 to move closer to or away from the lower mold 101.

[0079] Furthermore, there are multiple driving rods 3031, and the multiple driving rods 3031 are arranged in sequence and spaced apart in the circumferential direction of the deep cavity injection mold 100. There are multiple locking pieces 3013, and the multiple locking pieces 3013 are locked and matched with the driving rods 3031. The first ejection assembly 301 is driven to move closer to or away from the lower mold 101 by the multiple driving rods 3031 at the same time, and the second ejection assembly 302 is driven to move closer to or away from the lower mold 101 at the same time. In this way, when one of the multiple driving rods 3031 is damaged, the other undamaged driving rods 3031 can continue to drive the first ejection assembly 301 and the second ejection assembly 302 to move, thereby improving the working reliability of the deep cavity injection mold 100.

[0080] It should be noted that one driving rod 3031 can be stopped against multiple locking members 3013. Specifically, multiple locking members can be arranged at intervals along the circumferential direction of the driving rod 3031. When there are multiple driving rods 3031, the elastic members 3014 and the receiving grooves 3016 are both correspondingly multiple, and the multiple elastic members 3014 and the multiple receiving grooves 3016 are all arranged one-to-one with the multiple locking members.

[0081] Reference Figure 2 and Figure 3 In some embodiments of the present application, the second ejector assembly 302 includes a third ejector plate 3021 and a fourth ejector plate 3022, the third ejector plate 3021 and the fourth ejector plate 3022 are connected and matched, the third ejector plate 3021 is located on a side of the fourth ejector plate 3022 away from the lower mold 101, and the second push plate 202 is connected and matched with the fourth ejector plate 3022.

[0082] Further, refer to Figure 7 A second connecting rod 204 is arranged between the second push plate 202 and the fourth ejector plate 3022. Along the height direction of the deep cavity injection mold 100, the upper end of the second connecting rod 204 is connected and matched with the lower end of the second push plate 202, and the lower end of the second connecting rod 204 is connected and matched with the fourth ejector plate 3022, so that the technical effect of the fourth ejector plate 3022 driving the second push plate 202 to move closer to or away from the lower mold 101 through the second connecting rod 204 can be achieved.

[0083] Furthermore, there are multiple second connecting rods 204, and the multiple second connecting rods 204 are spaced apart along the circumferential direction of the deep cavity injection mold 100. By arranging multiple first connecting rods 203 between the second push plate 202 and the fourth ejector plate 3022, when the fourth ejector plate 3022 drives the second push plate 202 to move closer to or away from the lower mold 101, such an arrangement can minimize the uneven force applied by the fourth ejector plate 3022 to the second push plate 202, causing the second push plate 202 to flip, thereby improving the working reliability of the deep cavity injection mold 100.

[0084] In addition, the third ejector plate 3021 is provided with a stop groove 3024 and an avoidance hole 3023 extending in the thickness direction of the third ejector plate 3021, the radial dimension of the stop groove 3024 is larger than the radial dimension of the avoidance hole 3023, and the avoidance hole 3023 is located at the bottom of the stop groove 3024, and the stop groove 3024 is located on the side wall of the third ejector plate 3021 opposite to the fourth ejector plate 3022. Specifically, the avoidance hole 3023 is arranged close to the lower end wall of the third ejector plate 3021, the stop groove 3024 is arranged close to the upper end wall of the third ejector plate 3021, and the stop groove 3024 is located between the fourth ejector plate 3022 and the avoidance hole 3023.

[0085] The driving assembly 303 includes a driving rod 3031, which is extended along the height direction of the deep cavity injection mold 100. The upper end of the driving rod 3031 passes through the first ejection assembly 301 and extends into the stop groove 3024 of the third ejection plate 3021. The end of the driving rod 3031 extending into the third ejection plate 3021 is provided with a stop portion 3032, which is movably arranged in the stop groove 3024, and the stop portion 3032 is suitable for moving along the stop groove 3024 between the bottom of the stop groove 3024 and the fourth ejection plate 3022. Specifically, the radial dimension of the stop portion 3032 is smaller than the radial dimension of the stop groove 3024, and the radial dimension of the stop portion 3032 is larger than the radial dimension of the avoidance hole 3023. When the stop portion moves away from the fourth ejection plate 3022, the lower end wall of the stop portion 3032 abuts against the bottom of the stop groove 3024. When the stop portion 3032 moves closer to the fourth ejection plate 3022, the upper end wall of the stop portion 3032 abuts against the fourth ejection plate 3022.

[0086] When the demolding mechanism 20 performs the third ejection action, the driving rod 3031 moves close to the lower mold 101 to make the upper end wall of the stop portion 3032 stop against the fourth ejection plate 3022, thereby achieving the technical effect that the driving rod 3031 drives the second ejection component 302 to move close to the lower mold 101 through the driving portion. After the demolding mechanism 20 completes the ejection action, the driving rod 3031 moves away from the lower mold 101 to make the lower end wall of the stop portion 3032 stop against the bottom of the stop groove 3024, thereby achieving the technical effect that the driving rod 3031 drives the second ejection component 302 to move away from the lower mold 101 through the driving portion.

[0087] Reference Fig.10 and Fig.11 In some embodiments of the present application, the deep cavity injection mold 100 may further include: a bottom plate 40, a reset member 50, a reset detection member 60 and a controller. The bottom plate 40 is connected and matched with the injection molding machine. The bottom plate 40 is located on a side of the first ejection assembly 301 away from the second ejection assembly 302. Along the height direction of the deep cavity injection mold 100, the bottom plate 40 is located below the first ejection assembly 301, and the upper end wall of the bottom plate 40 is suitable for abutting against the first ejection plate 3011. The reset detection member 60 is arranged in the bottom plate 40, one end of the reset member 50 is connected and matched with the second ejection assembly 302, and the other end of the reset member 50 passes through the first ejection assembly 301 and is suitable for extending into the bottom plate 40 to abut against the reset detection member 60. The reset detection member 60 is used to detect the positions of the first ejection assembly 301 and the second ejection assembly 302. The controller is in communication connection with the reset detection member 60, and the controller is used to control the lower mold 101 and the upper mold to close the mold according to the detection signal of the reset detection member 60. In some specific embodiments, the reset detection member 60 may be a micro switch.

[0088] Specifically, after the demolding mechanism 20 completes the ejection action, the driving rod 3031 drives the first ejection component 301 and the second ejection component 302 to move away from the lower mold 101. When the first ejection component 301 and the bottom plate 40 are stopped, and the pre-shrinkage gap 304 between the first ejection component 301 and the second ejection component 302 is equal to the designed pre-shrinkage gap 304, the reset member 50 and the reset detection member 60 are stopped, and the reset detection member 60 sends a detection signal to the controller. The controller controls the injection molding machine to drive the lower mold 101 to move closer to the upper mold according to the detection signal of the reset detection member 60, so that the lower mold 101 and the upper mold are closed, thereby realizing the automatic production of plastic parts by the deep cavity injection mold 100.

[0089] Reference Fig.12 In some embodiments of the present application, the driving mechanism 30 may further include a first limiting member 70, one end of the first limiting member 70 is connected and cooperated with the first ejection assembly 301, and the other end of the first limiting member 70 passes through the second ejection assembly 302 and is suitable for abutting against or separating from the lower mold 101, and the first ejection assembly 301 is limited by abutting against the lower mold 101 by the first limiting member 70.

[0090] Specifically, along the height direction of the deep cavity injection mold 100, the lower end wall of the first limit member 70 is connected and cooperated with the second ejector plate 3012, and the upper end wall of the first limit member 70 passes through the second ejector assembly 302. When the upper end wall of the first limit member 70 stops against the lower mold 101, the first ejector assembly 301 stops moving and the locking member 3013 extends into the accommodating groove 3016 to unlock the driving rod 3031 and the first ejector assembly 301. When the upper end wall of the first limit member 70 stops against the lower mold 101, the plastic part is just separated from the lower mold 101. The designer can adjust the height size of the first limit member 70 according to the movement of the first push plate 201 and the second push plate 202 away from the lower mold 101 together, and the movement distance of the plastic part just ejected from the lower mold 101, so that the deep cavity injection mold 100 can match plastic parts of different height sizes.

[0091] It should be noted that the movement distances of the first push plate 201 and the second push plate 202 for ejecting plastic parts of different heights from the lower mold 101 are different.

[0092] Furthermore, there may be a plurality of first limit members 70, and the plurality of first limit members 70 are spaced apart along the circumferential direction of the deep cavity injection mold 100. When the driving rod 3031 drives the first ejection assembly 301 to move close to the lower mold 101 and abut against the lower mold 101, the plurality of first limit members 70 may abut against the lower mold 101 at the same time, thereby minimizing the possibility that the first ejection assembly 301 flips relative to the lower mold 101 when the driving force applied by the driving rod 3031 to the first driving assembly 303 is too large, thereby improving the working reliability of the deep cavity injection mold 100.

[0093] Reference Fig.12 In some embodiments of the present application, the driving mechanism 30 may further include a second limiting member 80, one end of the second limiting member 80 is connected and cooperated with the second ejection component 302, and the other end of the second limiting member 80 is movably arranged in the first ejection component 301, and the other end of the second limiting member 80 is suitable for limiting and cooperating with the first ejection component 301.

[0094] Specifically, the first ejector assembly 301 is provided with an avoidance groove. Along the height direction of the deep cavity injection mold 100, the lower end of the second limit member 80 is located in the avoidance groove and is suitable for abutting against the bottom of the avoidance groove. The upper end of the second limit member 80 passes through the first ejector assembly 301 and is connected and cooperated with the second ejector assembly 302. In some specific embodiments, the first ejector plate 3011 and the second ejector plate 3012 define the avoidance groove, and the avoidance groove is open toward the bottom plate 40.

[0095] When the lower end of the second limit member 80 stops at the bottom of the avoidance groove, the second push plate 202 completely ejects the plastic part from the lower mold 101. The spacing distance between the lower end of the second limit member 80 and the bottom of the avoidance groove is the movement distance of the second push plate 202 to completely eject the plastic part from the lower mold 101. The designer can replace different second limit members 80 to adjust the spacing distance between the lower end of the second limit member 80 and the bottom of the avoidance groove according to the movement distance of the second push plate 202 to completely eject different plastic parts from the lower mold 101, so that the deep cavity injection mold 100 can match different plastic parts.

[0096] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A deep cavity injection mold, characterized in that: include: A mold assembly (10), the mold assembly (10) comprising an upper mold and a lower mold (101), the upper mold and the lower mold (101) being arranged opposite to each other, and an injection gap is defined between the upper mold and the lower mold (101); A demoulding mechanism (20), the demoulding mechanism (20) being movably mounted on the lower mold (101), the demoulding mechanism (20) comprising a first push plate (201) and a second push plate (202), the first push plate (201) being adapted to abut against an edge of a plastic part molded in the injection molding gap, and the second push plate (202) being adapted to abut against a bottom wall of the plastic part; The driving mechanism (30) is located on a side of the lower mold (101) away from the upper mold, and the driving mechanism (30) comprises a first ejection assembly (301), a second ejection assembly (302) and a driving assembly (303). The first ejection assembly (301) is connected and matched with the first push plate (201), and the second ejection assembly (302) is connected and matched with the second push plate (202). The first ejection assembly (301) is located on a side of the second ejection assembly (302) away from the lower mold (101), and the first ejection assembly (301) and the second ejection assembly (302) are arranged opposite to each other and spaced apart to form a pre-collection. The drive assembly (303) is connected and cooperated with the first ejection assembly (301) and the second ejection assembly (302), and the drive assembly (303) is used to drive the first ejection assembly (301) to drive the first push plate (201) to move closer to or away from the lower mold (101), and is also used to drive the second ejection assembly (302) to drive the second push plate (202) to move closer to or away from the lower mold (101), and is also used to drive the first ejection assembly (301) to move closer to or away from the second ejection assembly (302), so that the first push plate (201) moves closer to or away from the second push plate (202); The first ejection assembly (301) comprises a first ejection plate (3011), a second ejection plate (3012), a locking member (3013) and an elastic member (3014); the first ejection plate (3011) and the second ejection plate (3012) are connected and matched; the first ejection plate (3011) is located on a side of the second ejection plate (3012) away from the lower mold (101); the first push plate (201) and the second ejection plate (3012) are connected and matched; the first ejection plate (3011) and the second ejection plate (3012) jointly define an avoidance channel (3015); and the first ejection plate (3011) is provided with a receiving groove (3016); The receiving groove (3016) is communicated with the avoidance channel (3015), the locking member (3013) is arranged in the receiving groove (3016), the elastic member (3014) is elastically deformably arranged between the locking member (3013) and the groove bottom of the receiving groove (3016), the locking member (3013) is suitable for extending into or moving out of the avoidance channel (3015), the driving assembly (303) passes through the avoidance channel (3015) and extends into the second ejection assembly (302), and the locking member (3013) and the driving assembly (303) are stopped or separated to lock or unlock the driving assembly (303) and the first ejection assembly (301); An adjusting member (3017) is provided on the side wall of the second ejection plate (3012) opposite to the second ejection assembly (302). The adjusting member (3017) is protruding toward the second ejection plate (3012). The adjusting member (3017) is spaced apart from the second ejection assembly (302) to form an adjusting gap (306), which is suitable for adjusting the spacing distance of the pre-shrinkage gap (304) by adjusting the gap distance of the adjusting gap (306).

2. A deep cavity injection mold according to claim 1, characterized in that: The lower mold (101) is provided with an unlocking member (102), and the first ejection plate (3011), the second ejection plate (3012) and the second ejection assembly (302) jointly define an unlocking channel (305), and the unlocking channel (305) is communicated with the accommodating groove (3016), and the unlocking member (102) passes through the unlocking channel (305), and the unlocking member (102) is suitable for extending into the accommodating groove (3016) to stop with the locking member (3013), and the unlocking member (102) is used to drive the locking member (3013) to extend into the accommodating groove (3016) to unlock the locking member (3013) and the driving assembly (303).

3. A deep cavity injection mold according to claim 1, characterized in that: There are a plurality of adjusting members (3017), and the plurality of adjusting members (3017) are arranged in sequence and spaced apart from each other along the circumferential direction of the deep cavity injection mold (100).

4. A deep cavity injection mold according to claim 2, characterized in that: The driving assembly (303) comprises a driving rod (3031), wherein the driving rod (3031) is extended along the height direction of the deep cavity injection mold (100), and the driving rod (3031) passes through the avoidance channel (3015) and extends into the second ejection assembly (302). There are a plurality of driving rods (3031), and the plurality of driving rods (3031) are sequentially spaced apart along the circumferential direction of the deep cavity injection mold (100). There are a plurality of locking members (3013), and the plurality of locking members (3013) are locked and matched with the driving rod (3031).

5. The deep cavity injection mold according to claim 1, characterized in that: The second ejector assembly (302) comprises a third ejector plate (3021) and a fourth ejector plate (3022), the third ejector plate (3021) and the fourth ejector plate (3022) being connected and matched, the third ejector plate (3021) being located on a side of the fourth ejector plate (3022) away from the lower mold (101), the second push plate (202) being connected and matched with the fourth ejector plate (3022), the third ejector plate (3021) and the fourth ejector plate (3022) being connected and matched with each other. 1) a stop groove (3024) and an avoidance hole (3023) extending along the thickness direction of the third ejection plate (3021); the radial dimension of the stop groove (3024) is greater than the radial dimension of the avoidance hole (3023); the avoidance hole (3023) is located at the bottom of the stop groove (3024); and the stop groove (3024) is located on the side wall of the third ejection plate (3021) opposite to the fourth ejection plate (3022); The driving assembly (303) includes a driving rod (3031), and the driving rod (3031) is extended along the height direction of the deep cavity injection mold (100). The driving rod (3031) passes through the first ejection assembly (301) and extends into the third ejection plate (3021). The end of the driving rod (3031) extending into the third ejection plate (3021) is provided with a stopper (3032), and the stopper (3032) is movably arranged in the stopper groove (3024), and the stopper (3032) is suitable for moving along the stopper groove (3024) between the bottom of the stopper groove (3024) and the fourth ejector plate (3022).

6. The deep cavity injection mold according to claim 1, characterized in that: Also includes: A bottom plate (40), a reset member (50), a reset detection member (60) and a controller, wherein the bottom plate (40) is located on a side of the first ejection assembly (301) away from the second ejection assembly (302), the reset detection member (60) is arranged in the bottom plate (40), one end of the reset member (50) is connected and matched with the second ejection assembly (302), the other end of the reset member (50) passes through the first ejection assembly (301) and is suitable for extending into the bottom plate (40) to stop with the reset detection member (60), the reset detection member (60) is used to detect the positions of the first ejection assembly (301) and the second ejection assembly (302), the controller is communicatively connected with the reset detection member (60), and the controller is used to control the lower mold (101) and the upper mold to close the mold according to the detection signal of the reset detection member (60).

7. The deep cavity injection mold according to claim 1, characterized in that: The driving mechanism (30) further comprises a first limiting member (70), one end of which is connected and cooperated with the first ejection assembly (301), and the other end of which passes through the second ejection assembly (302) and is suitable for abutting against or separating from the lower mold (101), so that the first ejection assembly (301) is limited by abutting against the lower mold (101) by the first limiting member (70).

8. The deep cavity injection mold according to claim 1, characterized in that: The driving mechanism (30) further comprises a second position-limiting member (80), one end of the second position-limiting member (80) being connected and matched with the second ejection assembly (302), and the other end of the second position-limiting member (80) being movably arranged in the first ejection assembly (301), and the other end of the second position-limiting member (80) being suitable for position-limiting cooperation with the first ejection assembly (301).

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