Mold ejection device

Abstract

The invention relates to the field of injection molds, in particular to a mold ejection device which comprises a bottom plate, a mold ejection mechanism and a mold ejection mechanism. A first mating plate; a second mating plate; the multiple sliding block assemblies are evenly distributed on the first matching plate, a movable die head is arranged at the end, away from the bottom wall, of the fixed die head, the multiple sliding block assemblies can move by a preset distance in the direction close to the fixed die head to form a columnar structure, and the columnar structure is provided with a cavity with an opening; and meanwhile, the ends, close to each other, of the static mold head and the movable mold head are arranged in the cavity, so that a glue injection cavity is formed together, and a plurality of blade grooves which are uniformly distributed are further formed in the side plate forming the glue injection cavity. By effectively utilizing the structural configuration of the mold, the mold has the advantages that the structure is simple, the mold cavity is formed through front-back movement of the multiple sliding blocks, and demolding is convenient and fast.

Description

Technical Field

[0001] The present application relates to the field of injection molds, and more specifically to a mold ejection device. Background Art

[0002] Injection molding is to first add plastic into the heated barrel of the injection molding machine. The plastic is heated and melted. Under the push of the injection molding machine screw or plunger, it enters the mold cavity through the nozzle and mold pouring system. Due to physical and chemical effects, it hardens and forms an injection molded product. Injection molding consists of a cycle consisting of injection, pressure holding and plastic part demoulding processes, so injection molding has a cyclical characteristic. The structure of the mold used for injection molding of fan blade products in the prior art is usually more complicated, such as the application number CN201621051625.1, the patent name is "A fan blade injection molding mold", which includes a device body, a glue injection port, a front mold, a rear mold, a rear mold cooling water port, a cavity sensor, a front mold cooling water port, a glue injection flow channel, a cooling water pipe and a cavity, the front mold outer surface is provided with a front mold cooling water port; the front mold cooling water port is fixedly connected to the cooling water pipe; the front mold is electrically connected to the cavity sensor; the lower end of the glue injection flow channel is connected to the cavity gap; the front mold is hinged to the rear mold through a guide column; the upper end of the rear mold is provided with a guide sleeve; The rear mold is provided with a rear mold cooling water port; the controller is electrically connected to the cavity sensor; the upper end of the push plate is hinged to the spring; the upper end of the spring is fixedly connected to the ejector fixing plate; the upper end of the ejector fixing plate is connected to the ejector. However, the above scheme has a very complex mold cavity structure, which will directly lead to a significant increase in the mold opening cost. Due to the complex mold cavity problem, how to effectively demold the fan blade product will also greatly increase the mold opening cost. After a long period of operation, it is also a problem to ensure effective opening and closing. Therefore, there is a need to provide a mold ejection device with a simple structure, which forms a mold cavity through the forward and backward movement of multiple sliders and is convenient for demolding. Summary of the invention

[0003] The main purpose of the present application is to provide a mold ejection device, wherein the mold ejection device can effectively utilize its own structural configuration to achieve the advantages of forming a mold cavity through the forward and backward movement of multiple sliders and convenient demoulding.

[0004] Another object of the present application is to provide a mold ejection device, wherein the mold ejection device includes a base plate, one side of the base plate has a first mounting hole and a plurality of evenly distributed positioning holes, the first mounting hole is located at the center of the base plate, and the plurality of positioning holes are located on the peripheral side of the mounting hole; a first matching plate, the first matching plate is fixed to the base plate and arranged on one side of the first mounting hole, and the first matching plate also has a second mounting hole, and the second mounting hole is opposite to the first mounting hole; a second matching plate, the second matching plate is fixed to the base plate and arranged on one side of the mounting hole, and the first matching plate also has a third mounting hole, and the first matching plate is arranged in the second mounting hole; a plurality of slider assemblies, the plurality of slider assemblies are evenly arranged on the first matching plate, and the plurality of slider assemblies are also connected to the The second matching plate cooperates with the second matching plate, wherein a static die head is also installed in the one mounting hole, one end of the static die head is fixed in the first mounting hole, and the other end passes through the second mounting hole and is placed outside, and a dynamic die head is arranged at the end of the static die head away from the bottom wall, and the multiple slider assemblies can move a predetermined distance in the direction close to the static die head to form a columnar structure, and the columnar structure has a cavity with an opening, and the ends of the static die head and the dynamic die head close to each other are both arranged in the cavity, so as to jointly form a glue injection cavity, and the side plate forming the glue injection cavity also has a plurality of evenly distributed blade grooves, wherein the above-mentioned slider assembly includes a plurality of modules that can move forward and backward, that is, when the plurality of modules are put together, a glue injection cavity can be formed, so that when the glue injection is completed, a fan blade structure can be formed, and when the plurality of sliders move in directions away from each other, the product can be directly separated from the glue injection cavity.

[0005] Another object of the present application is to provide a mold ejection device, wherein the mold ejection device has a simple structure, is easy to operate, does not involve complex manufacturing processes and expensive materials, has high economy, and is easy to promote and use.

[0006] In order to achieve at least one of the above-mentioned invention purposes, the present application provides a mold ejection device, wherein the mold ejection device comprises: A bottom plate, one side of the bottom plate has a first mounting hole and a plurality of evenly distributed positioning holes, the first mounting hole is located at the center of the bottom plate, and the plurality of positioning holes are located around the mounting hole; a first matching plate, wherein the first matching plate is fixed to the bottom plate at one side of the first mounting hole, and the first matching plate also has a second mounting hole, and the second mounting hole is directly opposite to the first mounting hole; a second matching plate, wherein the second matching plate is fixed to the bottom plate and arranged on one side of the mounting hole, and the first matching plate further has a third mounting hole, and the first matching plate is arranged in the second mounting hole; A plurality of slider assemblies, wherein the plurality of slider assemblies are evenly arranged on the first matching plate, and the plurality of slider assemblies are also matched with the second matching plate, wherein a static die head is also installed in the one mounting hole, one end of the static die head is fixed in the first mounting hole, and the other end passes through the second mounting hole and is placed outside, and a dynamic die head is arranged at the end of the static die head away from the bottom wall, and in addition, the plurality of slider assemblies can be moved a predetermined distance in the direction close to the static die head to form a columnar structure, and the columnar structure has a cavity with an opening, and at the same time, the ends of the static die head and the dynamic die head close to each other are both arranged in the cavity, thereby jointly forming a glue injection cavity, and the side plate forming the glue injection cavity also has a plurality of evenly arranged blade grooves.

[0007] In one or more embodiments of the present application, each of the slider assemblies includes a slider and a module disposed on the slider, and the slider is movably disposed at the first mating plate.

[0008] In one or more embodiments of the present application, the bottom of the first mating plate has a plurality of evenly distributed first slide grooves, and the plurality of first slide grooves are located on the peripheral side of the second mounting hole, and the bottom wall forming the first slide groove also has a second slide groove, the size of the second slide groove is smaller than the size of the first slide groove, and the slider is slidably disposed in the first slide groove, the module is located on the upper side of the first mating plate, and the bottom of the module has a protrusion, the protrusion is slidably disposed in the second slide groove, and the bottom of the protrusion is fixedly connected to the top of the slider.

[0009] In one or more embodiments of the present application, each of the slider assemblies includes a connecting rod, one end of which cooperates with the slider, the end of the slider also has a slot, the end of the connecting rod has a connecting portion that cooperates with the slot, and the connecting portion is configured to cooperate with the slot.

[0010] In one or more embodiments of the present application, the wall forming the first slide groove and away from the static die head also has a first insertion hole, and the wall forming the third mounting hole has a plurality of evenly distributed step holes, and the plurality of first insertion holes correspond one-to-one to the plurality of step holes, and the first insertion holes are respectively connected with the first slide groove and the corresponding step holes, and the outer wall of the second mating plate also has a plurality of evenly distributed mounting grooves, and the plurality of mounting grooves correspond one-to-one to the plurality of step holes, and the bottom wall forming the mounting groove has a first oil hole, and the first oil hole is also connected with the step hole, wherein the end of the connecting rod away from the slider passes through the first insertion hole and the step hole in sequence, and is placed in the first oil hole.

[0011] In one or more embodiments of the present application, the end of the connecting rod placed in the first oil hole has a plug, and the plug has two oppositely arranged annular protrusions, and a first rubber sleeve is sleeved between the two annular protrusions.

[0012] In one or more embodiments of the present application, a second rubber sleeve is further provided in the step hole, and the connecting rod passes through the first rubber sleeve, a cover plate is also fixed in the mounting groove, and the cover plate has an insertion portion on the side facing the first oil hole, the insertion portion is inserted into the first oil hole, and a second rubber sleeve is also sleeved on the insertion portion.

[0013] In one or more embodiments of the present application, the wall forming the first oil hole also has a second oil hole, which is located between the plug and the first rubber sleeve, and the wall forming the first oil hole also has a third oil hole, which is close to the mounting groove and located between the cover plate and the plug.

[0014] In one or more embodiments of the present application, a first annular groove and a second annular groove are also provided on one side facing the first mating plate, the first annular groove is located in the second annular groove and is spaced a predetermined distance from the second annular groove, and a plurality of second oil holes are all connected to the first annular groove, and a plurality of third oil holes are also all connected to the second annular groove, and in addition, the bottom wall forming the first annular groove has a fourth oil hole, and the bottom wall forming the second annular groove has a fifth oil hole, and the other ends of the fifth oil hole and the fourth oil hole are located on the side wall of the bottom wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] These and / or other aspects and advantages of the present application will become clearer and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which: Figure 1 The figure shows a structural schematic diagram of a mold ejection device.

[0016] Figure 2 The figure shows a schematic diagram of the structure of the base plate.

[0017] Figure 3 The figure shows an enlarged view of a portion of the base plate.

[0018] Figure 4 The figure shows a partial structure diagram of a mold ejection device Figure 1 .

[0019] Figure 5 The figure shows a schematic structural diagram of the second matching plate.

[0020] Figure 6 The figure shows a schematic structural diagram of the third matching plate.

[0021] Figure 7 The figure shows a partial cross-sectional structural schematic diagram of the third matching plate.

[0022] Figure 8 The figure shows a schematic diagram of the bottom structure of the third matching plate.

[0023] Fig. 9 The figure shows a schematic structural diagram of a slider assembly.

[0024] Fig.10 The figure shows a partial structure diagram of a mold ejection device Figure 2 .

[0025] Fig.11 The figure shows a partial structure diagram of a mold ejection device Figure 3 .

[0026] Fig.12 The diagram shows a partial enlargement of the structure of a mold ejection device. Figure 1 .

[0027] Fig.13 The figure shows a partial structural cross-sectional view of a mold ejection device.

[0028] Fig.14 The figure shows a schematic structural diagram of a static die head.

[0029] Fig.15 The figure shows a schematic structural diagram of the cover plate.

[0030] Fig.16 The diagram shows a partial enlargement of the structure of a mold ejection device. Figure 2 . DETAILED DESCRIPTION

[0031] The terms and words used in the following specification and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustrative purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0032] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0033] Although ordinals such as "first," "second," and the like will be used to describe various components, those components are not limited herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component without departing from the teachings of the inventive concept. The term "and / or" as used herein includes any and all combinations of one or more associated listed items.

[0034] The terms used herein are only used for the purpose of describing various embodiments and are not intended to be limiting. As used herein, singular forms are intended to also include plural forms, unless the context clearly indicates an exception. In addition, it will be understood that the terms "including" and / or "having" when used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0035] refer to Figures 1 to 16 According to a preferred embodiment of the present invention, the mold ejection device has a structure as follows: Figure 1 As shown, it includes a base plate 10, one side of which has a first mounting hole 101 and a plurality of evenly distributed positioning holes 102, the first mounting hole 101 is located at the center of the base plate 10, and the plurality of positioning holes 102 are located around the mounting hole.

[0036] It is worth mentioning that the mold ejection device further includes a first matching plate 20, which is fixed to the bottom plate 10 on one side of the first mounting hole 101, and the first matching plate 20 also has a second mounting hole 201, the second mounting hole 201 is directly opposite to the first mounting hole 101, and the size of the second mounting hole 201 is smaller than the size of the first mounting hole 101. In addition, the first matching plate 20 is matched with the plurality of positioning holes 102 through a plurality of external bolts to fix the position of the first matching plate 20.

[0037] It is worth mentioning that the mold ejection device further includes a second matching plate 30, which is fixed to the bottom plate 10 and arranged on one side of the mounting hole, and the first matching plate 20 also has a third mounting hole 301, and the first matching plate 20 is arranged in the second mounting hole 201. It should be noted that the third mounting hole 301 is implemented as a polygon to facilitate limiting the position of the first matching plate 20.

[0038] It is worth mentioning that the mold ejection device also includes a plurality of slider assemblies 40, and the plurality of slider assemblies 40 are evenly arranged on the first matching plate 20, and the plurality of slider assemblies 40 also cooperate with the second matching plate 30. Specifically, a static die head 100 is also installed in the first mounting hole 101, and one end of the static die head 100 is fixed in the first mounting hole 101, and the other end passes through the second mounting hole 201 and is placed outside. It should be noted that the bottom wall forming the first mounting hole 101 has two oppositely arranged fixing holes, and the static die head 100 can cooperate with the two fixing holes through an external fixing member, thereby limiting the position of the static die head 100. Those skilled in the art should understand that a movable die head 200 is disposed at one end of the static die head 100 away from the bottom wall, that is, the movable die head 200 can move a predetermined distance in a direction close to the static die head 100 until it is spaced a predetermined distance from the static die head 100, and the plurality of slider assemblies 40 can move a predetermined distance in a direction close to the static die head 100 to form a columnar structure 300, and the columnar structure 300 has a cavity with an opening, and the ends of the static die head 100 and the movable die head 200 that are close to each other are both disposed in the cavity, thereby forming a glue injection cavity 3001 together. Those skilled in the art should understand that the external glue injection head directly abuts against the end of the movable die head 200 away from the static die head 100, and enters into the injection cavity through the movable die head 200, so as to form a structure such as Fig.11 It is worth mentioning that the side plate forming the glue injection cavity 3001 also has a plurality of blade grooves 3002 evenly distributed.

[0039] Specifically, each of the slider assemblies 40 includes a slider 41 and a module 42 arranged on the slider 41, and the slider 41 is movably arranged at the first matching plate 20. The bottom of the first matching plate 20 has a plurality of evenly distributed first slide grooves 202, and the plurality of first slide grooves 202 are located on the peripheral side of the second mounting hole 201, and the bottom wall forming the first slide groove 202 also has a second slide groove 203, and the size of the second slide groove 203 is smaller than the size of the first slide groove 202. That is, the slider 41 is slidably arranged in the first slide groove 202. It is worth mentioning that the module 42 is located on the upper side of the first matching plate 20, and the bottom of the module 42 has a protrusion 421, and the protrusion 421 is slidably arranged in the second slide groove 203, and the bottom of the protrusion 421 is fixedly connected to the top of the slider 41, and the connection method is as follows. Fig.12As shown, at least two external bolts penetrate the slider 41 and cooperate with the protrusion 421 to fix the protrusion 421 and the slider 41 together, that is, when the slider 41 moves, the module 42 arranged on the slider 41 moves synchronously. It should be noted that the first slide groove 202 is arranged in a ring array.

[0040] The structure of the module 42 is as follows: Fig. 9 , and when the multiple modules 42 move toward the direction approaching the static die head 100, the multiple modules 42 are configured to combine the above-mentioned columnar structure 300, and when the fan blades in the injection cavity 3001 are formed, the multiple modules 42 can be moved a predetermined distance away from the static die head 100 through the corresponding sliders 41, so that the modules 42 will not block the formed fan blades, so as to facilitate the external robot to take out the fan blades.

[0041] It is worth mentioning that each of the slider assemblies 40 includes a connecting rod 43, one end of which is matched with the slider 41, and the connection method is as follows: Fig. 9 Specifically, the end of the slider 41 also has a slot 4101, and the structure of the slot 4101 is as shown in FIG. Fig. 9 As shown, the end of the connecting rod 43 has a connecting portion 431 that cooperates with the slot 4101, and the connecting portion 431 is configured to cooperate with the slot 4101, so that the connecting rod 43 can drive the slider 41 to move. Specifically, the wall that forms the first slide groove 202 and is away from the static die head 100 also has a first insertion hole 204, and the wall that forms the third mounting hole 301 has a plurality of evenly distributed step holes 302, and the plurality of first insertion holes 204 correspond to the plurality of step holes 302 one by one, that is, the first insertion holes 204 are respectively connected to the first slide groove 202 and the corresponding step holes 302. Among them, the outer wall of the second matching plate 30 also has a plurality of evenly distributed installation grooves 303, and the plurality of installation grooves 303 correspond one-to-one to the plurality of step holes 302, and the bottom wall forming the installation grooves 303 has a first oil hole 304, and the first oil hole 304 is also connected to the step hole 302, that is, the end of the connecting rod 43 away from the slider 41 passes through the first insertion hole 204 and the step hole 302 in sequence, and is placed in the first oil hole 304.

[0042] It should be noted that, Fig. 9As shown, the end of the connecting rod 43 placed in the first oil hole 304 has a plug 432, and the plug 432 is configured to be squeezed by the oil in the first oil hole 304 and move a predetermined distance in the direction close to or away from the step hole 302, and the structure of the plug 432 is two annular protrusions arranged opposite to each other, and a first rubber sleeve is sleeved between the two annular protrusions. Specifically, a second rubber sleeve is also arranged in the step hole 302, and the connecting rod 43 also passes through the first rubber sleeve. In addition, a cover plate 44 is fixed in the mounting groove 303, and the cover plate 44 has an insertion portion 441 on the side facing the first oil hole 304, and the insertion portion 441 can be inserted into the first oil hole 304. At the same time, a second rubber sleeve is sleeved on the insertion portion 441, that is, through the cover plate 44 and the first rubber sleeve, the two ends of the first oil hole 304 are closed, and the plug 432 is also spaced a predetermined distance from the first rubber sleeve.

[0043] It is worth mentioning that the wall forming the first oil hole 304 also has a second oil hole 305, and the second oil hole 305 is located between the plug 432 and the first rubber sleeve, that is, the external oil is configured to be able to enter the first oil hole 304 through the second oil hole 305, and squeeze the plug 432 toward the end of the first rubber sleeve, so that the plug 432 moves a predetermined distance in the direction close to the cover plate 44.

[0044] It should be noted that the wall surface forming the first oil hole 304 also has a third oil hole 306. The structure of the third oil hole 306 is as follows: Figure 7 As shown, external oil can enter the first oil hole 304 through the third oil hole 306 , and the third oil hole 306 is also close to the mounting groove 303 , that is, located between the cover plate 44 and the plug 432 .

[0045] like Figure 3The bottom plate 10 structure shown in the figure also has a first annular groove 103 and a second annular groove 104 on the side facing the first mating plate 20, the first annular groove 103 is located in the second annular groove 104 and is spaced a predetermined distance from the second annular groove 104, that is, the size of the first annular groove 103 is smaller than the size of the second annular groove 104, and the above-mentioned multiple second oil holes 305 are all connected to the first annular groove 103, and the multiple third oil holes 306 are also all connected to the second annular groove 104. In addition, the bottom wall forming the first annular groove 103 has a fourth oil hole 105, and the bottom wall forming the second annular groove 104 has a fifth oil hole 106, that is, external oil can enter the first annular groove 103 or the second annular groove 104 through the fourth oil hole 105 or the fifth oil hole 106, and vice versa, it can be guided to the outside through the fourth oil hole 105 or the fifth oil hole 106. Specifically, the other ends of the fifth oil hole 106 and the fourth oil hole 105 are located on the side wall of the bottom wall, and their external oil pipes are directly connected to the corresponding hole positions. It is worth mentioning that the second oil hole and the third oil hole can be formed by injection as shown in FIG. Fig.16 A rod-like structure 500 is shown.

[0046] It should be noted that the end of the static die head 100 placed in the injection cavity 3001 also has a spiral cavity 3003, and the bottom wall forming the spiral cavity 3003 also has a first through hole 3004, and a push rod 400 is placed in the through hole 3004, and the bottom wall forming the first mounting hole also has a second through hole, the first through hole is connected to the second through hole, that is, the fixed rod can move in the first through hole and the second through hole. It should be understood by those skilled in the art that the push rod 400 is configured to move forward and backward by a predetermined distance to eject the fan blade placed in the injection cavity 3001, and it should be noted that there should be another ejector rod in the second through hole, and cooperate with the push rod to drive the push rod to move forward and backward.

[0047] In summary, the mold ejection device based on the embodiment of the present application is explained, which provides the mold ejection device with advantages such as simple structure, forming a mold cavity through the forward and backward movement of multiple sliders, and convenient demolding.

[0048] It is worth mentioning that in the embodiment of the present application, the mold ejection device has a simple structure, does not involve complex manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the mold ejection device provided by the present application is easy to produce and has low cost, which is more conducive to controlling production costs and further conducive to product promotion and use.

[0049] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A mold ejection device, characterized in that: The mold ejection device comprises: A bottom plate, one side of the bottom plate has a first mounting hole and a plurality of evenly distributed positioning holes, the first mounting hole is located at the center of the bottom plate, and the plurality of positioning holes are located around the mounting hole; a first matching plate, wherein the first matching plate is fixed to the bottom plate at one side of the first mounting hole, and the first matching plate also has a second mounting hole, and the second mounting hole is directly opposite to the first mounting hole; a second matching plate, wherein the second matching plate is fixed to the bottom plate and arranged on one side of the mounting hole, and the first matching plate further has a third mounting hole, and the first matching plate is arranged in the second mounting hole; A plurality of slider assemblies, wherein the plurality of slider assemblies are evenly arranged on the first matching plate, and the plurality of slider assemblies are also matched with the second matching plate, wherein a static die head is also installed in the one mounting hole, one end of the static die head is fixed in the first mounting hole, and the other end passes through the second mounting hole and is placed outside, and a dynamic die head is arranged at the end of the static die head away from the bottom wall, and in addition, the plurality of slider assemblies can be moved a predetermined distance in the direction close to the static die head to form a columnar structure, and the columnar structure has a cavity with an opening, and at the same time, the ends of the static die head and the dynamic die head close to each other are both arranged in the cavity, thereby jointly forming a glue injection cavity, and the side plate forming the glue injection cavity also has a plurality of evenly arranged blade grooves.

2. The mold ejection device according to claim 1, wherein each of the slider assemblies comprises a slider and a module disposed on the slider, and the slider is movably disposed at the first matching plate.

3. The mold ejection device according to claim 2, wherein the bottom of the first matching plate has a plurality of evenly distributed first slide grooves, and the plurality of first slide grooves are located on the circumferential side of the second mounting hole, and the bottom wall forming the first slide groove also has a second slide groove, the size of the second slide groove is smaller than the size of the first slide groove, and the slider is slidably disposed in the first slide groove, the module is located on the upper side of the first matching plate, and the bottom of the module has a protrusion, the protrusion is slidably disposed in the second slide groove, and the bottom of the protrusion is fixedly connected to the top of the slider.

4. The mold ejection device according to claim 3, wherein each of the slider assemblies includes a connecting rod, one end of the connecting rod cooperates with the slider, the end of the slider also has a slot, the end of the connecting rod has a connecting portion that cooperates with the slot, and the connecting portion is configured to cooperate with the slot.

5. The mold ejection device according to claim 4, wherein the wall surface forming the first slide groove and away from the static die head also has a first insertion hole, and the wall surface forming the third mounting hole has a plurality of evenly distributed step holes, and the plurality of first insertion holes correspond one-to-one to the plurality of step holes, and the first insertion holes are respectively connected with the first slide groove and the corresponding step holes, and the outer wall of the second matching plate also has a plurality of evenly distributed mounting grooves, and the plurality of mounting grooves correspond one-to-one to the plurality of step holes, and the bottom wall forming the mounting groove has a first oil hole, and the first oil hole is also connected with the step hole, wherein the end of the connecting rod away from the slider passes through the first insertion hole and the step hole in sequence and is placed in the first oil hole.

6. The mold ejection device according to claim 5, wherein the end of the connecting rod placed in the first oil hole has a plug, and the plug has two oppositely arranged annular protrusions, and a first rubber sleeve is sleeved between the two annular protrusions.

7. The mold ejection device according to claim 6, wherein a second rubber sleeve is further provided in the step hole, and the connecting rod passes through the first rubber sleeve, a cover plate is also fixed in the mounting groove, and the cover plate has an insertion portion on the side facing the first oil hole, the insertion portion is inserted into the first oil hole, and a second rubber sleeve is further sleeved on the insertion portion.

8. The mold ejection device according to claim 7, wherein the wall forming the first oil hole also has a second oil hole, the second oil hole is located between the plug and the first rubber sleeve, and the wall forming the first oil hole also has a third oil hole, the third oil hole is close to the mounting groove and is located between the cover plate and the plug.

9. The mold ejection device according to claim 8, wherein the side facing the first matching plate also has a first annular groove and a second annular groove, the first annular groove is located in the second annular groove and is spaced a predetermined distance from the second annular groove, and a plurality of second oil holes are all connected to the first annular groove, and a plurality of third oil holes are also connected to the second annular groove, and in addition, the bottom wall forming the first annular groove has a fourth oil hole, and the bottom wall forming the second annular groove has a fifth oil hole, and the other ends of the fifth oil hole and the fourth oil hole are located on the side wall of the bottom wall.

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