Injection mold with plate layer separation mechanism

Abstract

The invention discloses an injection mold with a plate layer separation mechanism. The injection mold comprises a plurality of mold plate layers, and a plurality of demolding separation assemblies are arranged between the multiple mold plate layers; the diameter sizes of the multiple fixing threaded sleeves are gradually reduced from bottom to top, the adjusting threaded rod assembly is provided with multiple sections of threaded rods, synchronous and equal-distance separation is achieved, through cooperation of the adjusting threaded rod assembly and the fixing threaded sleeves and the effect of the synchronous adjusting assembly, synchronous and equal-distance separation of multiple layers of laminates can be achieved, and the demolding efficiency and the product quality are improved. Due to the design that the demolding space of the lower layer is sufficient, the diameters of the screws are gradually decreased from bottom to top, and the screw pitches of the external threads are gradually increased from bottom to top, sufficient space is provided for demolding of the lower layer fixing thread sleeve, and the problem that in the upward demolding process, the lower layer fixing thread sleeve can not be taken out due to interference is solved; however, the corresponding threaded sleeves can finish synchronous separation of corresponding screw rod strokes in proportion, and the separation stability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and particularly to an injection mold with a plate layer separation mechanism. Background Art

[0002] In the field of injection molds, for some injection molded parts with complex structures and multi-layer plate layer structures, the demolding process is often difficult. Traditional demolding methods are difficult to achieve synchronous and equidistant separation of multiple layer plates, easily resulting in problems such as damage to the injection molded parts and incomplete demolding, affecting product quality and production efficiency. In addition, some existing demolding mechanisms are not reasonably designed and cannot provide sufficient space for the demolding of the corresponding lower layer plates during the synchronous layer separation process, increasing the difficulty and cost of demolding. Therefore, a new type of injection mold plate layer separation mechanism is needed to solve the above problems.

[0003] Therefore, the existing injection mold technology field needs to be further improved. Summary of the Invention

[0004] The purpose of the present invention is to provide an injection mold with a plate layer separation mechanism, which can achieve synchronous and equidistant separation of multiple layer plates, provide sufficient space for the demolding of the lower layer plates, and improve demolding efficiency and product quality.

[0005] To achieve the above purpose, the present invention adopts the following scheme: an injection mold with a plate layer separation mechanism, including multiple layers of mold plate layers, and a plurality of demolding separation components are arranged between the multiple layers of mold plate layers;

[0006] The demolding separation components include an adjusting screw rod component arranged on the bottommost mold plate layer and fixed screw sleeves respectively arranged on the remaining multiple mold plate layers. The diameters of the multiple fixed screw sleeves gradually decrease from bottom to top. Multiple sections of screw rods are arranged on the adjusting screw rod component;

[0007] The diameters of the multiple sections of screw rods gradually decrease from bottom to top;

[0008] The number of turns of the external threads of the multiple sections of screw rods is the same;

[0009] The pitches of the external threads of the multiple sections of screw rods gradually increase from bottom to top;

[0010] An elastic separation gear component is arranged at the bottom of the adjusting screw rod component;

[0011] A synchronous adjustment component is arranged between the multiple demolding separation components.

[0012] Further, the multiple mold plate layers are respectively a bottom plate component, a lower template, a middle template, an upper template, and a panel from bottom to top.

[0013] Further, there are four fixed screw sleeves, which are respectively arranged on the lower template, the middle template, the upper template and the panel and are aligned with the axial direction of the adjusting screw rod assembly.

[0014] Further, the adjusting screw rod assembly includes a shaft positioning sleeve arranged on the bottom plate assembly, and a shaft is movably arranged up and down in the shaft positioning sleeve.

[0015] Further, the number of the screw rods is four, which are respectively inserted through the fixed screw sleeves at corresponding positions and are threadedly connected to the corresponding fixed screw sleeves.

[0016] Further, a guiding assembly is arranged between the multiple mold plate layers;

[0017] The guiding assembly includes a vertical fixed guide shaft arranged on the bottom plate assembly. Guide shaft sleeves axially aligned with the vertical fixed guide shaft are respectively arranged on the lower template, the middle template, the upper template and the panel, and the vertical fixed guide shaft passes through the multiple guide shaft sleeves for guiding.

[0018] Further, the elastic disengaging gear assembly includes a movable gear arranged at the lower end of the shaft. A gear mounting seat is arranged on the bottom plate assembly below the movable gear, a fixed gear is rotatably mounted on the gear mounting seat, a synchronous rotation coupling structure is arranged between the gear mounting seat and the fixed gear, and an elastic disengaging component is arranged between the fixed gear and the movable gear.

[0019] Further, the synchronous rotation coupling structure is used to keep the movable gear and the fixed gear rotating synchronously, but cannot affect the height position adjustment of the movable gear relative to the fixed gear;

[0020] The movable gear and the fixed gear are axially aligned and have basically the same dimensional parameters.

[0021] Further, the synchronous rotation coupling structure includes a polygonal synchronous shaft arranged on the upper end face of the fixed gear, a polygonal synchronous shaft hole is arranged on the lower end face of the movable gear, the polygonal synchronous shaft is movably inserted into the polygonal synchronous shaft hole, and the polygonal synchronous shaft hole and the polygonal synchronous shaft have the same contour shape;

[0022] The elastic disengaging component includes a spring installation groove arranged on the lower end face of the shaft positioning sleeve. A spring structure is installed in the spring installation groove. A pressing ring is sleeved outside the shaft below the shaft positioning sleeve. The spring structure presses on the upper surface of the pressing ring and makes the pressing ring closely adhere to the upper surface of the movable gear, so that the movable gear is pressed downward.

[0023] Further, the synchronous adjustment component includes a control cavity arranged inside the bottom plate component. A synchronous gear is arranged in the middle of the control cavity. A transmission gear is arranged between the synchronous gear and the fixed gear. The fixed gear and the movable gear at the same side position are meshed with one corresponding transmission gear. The transmission gear is meshed and driven with the synchronous gear. A worm gear is arranged on the upper end face of the synchronous gear. An adjusting worm is arranged horizontally in the control cavity. The adjusting worm is meshed and driven with the worm gear;

[0024] The height dimension of the transmission gear is greater than the dimension of the movable range of the movable gear relative to the fixed gear.

[0025] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0026] The present invention solves the deficiencies existing in the prior art in the field of injection mold technology. Through the structural settings of the present invention, the following advantages are possessed: synchronous and equidistant separation. Through the cooperation of the adjusting screw component and the fixed screw sleeve, and the action of the synchronous adjustment component, the synchronous and equidistant separation of multiple layers of laminates can be realized, improving the demolding efficiency and product quality. There is sufficient demolding space for the lower layer. The design that the diameter of the screw gradually becomes smaller from bottom to top and the pitch of the external thread gradually becomes larger from bottom to top provides sufficient space for the demolding of the fixed screw sleeve of the lower layer, avoiding the problem that the lower layer may be interfered and unable to be taken out during the upward demolding process. At the same time, although the lengths of multiple screws are different, the corresponding screw sleeves can synchronously disengage the corresponding screw strokes in proportion, with high separation stability: the setting of the guiding component ensures the linear movement of each layer of mold plates during the separation process, improving the stability and accuracy of the separation. The screw disengagement is convenient. The elastic disengagement gear component can drive the adjusting screw component to move downward after the screw stops meshing with the fixed screw sleeve, enabling the screw to smoothly disengage from the fixed screw sleeve, facilitating subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a perspective view of the present invention;

[0028] Figure 2 is a schematic diagram of the hierarchical structure of the perspective view of the present invention;

[0029] Figure 3 is a front view of the present invention;

[0030] Figure 4 is a schematic diagram of the hierarchical structure of the front view of the present invention;

[0031] Figure 5 is a left view of the present invention;

[0032] Figure 6 is a schematic diagram of the internal structure of the present invention I;

[0033] Figure 7Schematic diagram II of the internal structure of the present invention;

[0034] Figure 8 Cross-sectional view of the elastic detachment component structure before lamination of the present invention;

[0035] Figure 9 For the present invention Figure 8 Partial enlarged view of location A of the present invention;

[0036] Figure 10 Cross-sectional view of the elastic detachment component structure after lamination of the present invention;

[0037] Figure 11 For the present invention Figure 10 Partial enlarged view of location B of the present invention. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0039] Please refer to Figures 1 - 11 , the present invention provides an injection mold with a plate layer separation mechanism, including multiple layers of mold plate layers 1, and a plurality of demolding separation components 2 are arranged between the multiple mold plate layers 1;

[0040] The demolding separation component 2 includes an adjustment screw rod component 3 arranged on the bottommost mold plate layer 1 and fixed screw sleeves 4 respectively arranged on the remaining multiple mold plate layers 1. The diameters of the multiple fixed screw sleeves 4 gradually decrease from bottom to top. Multiple sections of screw rods 5 are arranged on the adjustment screw rod component 3;

[0041] The diameters of the multiple sections of screw rods 5 gradually decrease from bottom to top, aiming to facilitate the demolding of the lower fixed screw sleeve 4;

[0042] The number of turns of the external threads of the multiple sections of screw rods 5 is the same;

[0043] The pitches of the external threads of the multiple sections of screw rods 5 gradually increase from bottom to top (the pitches of each section of screw rod 5 gradually increase in an arithmetic progression from bottom to top). The purpose is that when the adjustment screw rod component 3 rotates a specified number of turns, the separation distance of each layer of fixed screw sleeve 4 from bottom to top is larger closer to the upper position, providing sufficient separation space for the lower fixed screw sleeve 4;

[0044] An elastic disengaging gear assembly 7 is provided at the bottom of the adjusting screw assembly 3. The elastic disengaging gear assembly 7 is used to drive the adjusting screw assembly 3 to move downward after multiple screws 5 stop meshing with the corresponding fixed screw sleeves 4, so that the corresponding screws 5 disengage from the corresponding fixed screw sleeves 4;

[0045] A synchronous adjustment assembly 8 is provided between multiple demolding and separating assemblies 2.

[0046] In the present invention, multiple mold plate layers 1 are, from bottom to top, a bottom plate assembly 101, a lower template 102, a middle template 103, an upper template 104, and a panel 106;

[0047] Multiple mold plate layers 1 are, from bottom to top, a bottom plate assembly 101, a lower template 102, a middle template 103, an upper template 104, and a panel 106.

[0048] The demolding and separating assembly 2 includes an adjusting screw assembly 3 provided on the bottommost mold plate layer, i.e., the bottom plate assembly 101, and fixed screw sleeves 4 respectively provided on the lower templates 102, middle templates 103, upper templates 104, and panels 106 of the remaining multiple mold plate layers; the diameters of the multiple fixed screw sleeves 4 gradually decrease from bottom to top. Multiple sections of screws 5 are provided on the adjusting screw assembly 3.

[0049] The multiple sections of screws 5 have the following special designs:

[0050] Diameter design: The diameters of the multiple sections of screws 5 gradually decrease from bottom to top. The purpose of this design is to facilitate the demolding of the lower fixed screw sleeves 4. When demolding operations are carried out, the screws with smaller diameters are located in the upper layer and will not hinder the demolding of the lower fixed screw sleeves, enabling the lower fixed screw sleeves to smoothly disengage from the screws.

[0051] Number of outer thread turns: The number of outer thread turns of the multiple sections of screws 5 is the same. This ensures that when the adjusting screw assembly 3 rotates, the starting conditions of the thread transmission of each layer of fixed screw sleeves 4 are the same, enabling each group of fixed screw sleeves 4 to complete the stroke movement synchronously even if the lengths of the corresponding meshing screws are different.

[0052] Outer pitch design: The outer pitches of the multiple sections of screws 5 gradually increase from bottom to top. When the adjusting screw assembly 3 rotates a specified number of turns, due to the difference in pitches, the separation distances of each layer of fixed screw sleeves 4 from bottom to top increase more as they get closer to the upper position, thus providing sufficient separation space for the lower fixed screw sleeves 4 to ensure that each layer of plate can be smoothly demolded.

[0053] The number of screws 5 is four, which are respectively inserted through the corresponding fixed screw sleeves 4 and are threadedly connected to the corresponding fixed screw sleeves 4.

[0054] A guiding component 6 is arranged between multiple layers of the die plate layers 1. The guiding component 6 includes a vertically fixed guide shaft 601 arranged on the bottom plate component 101. Guide bushings 602 axially aligned with the vertically fixed guide shaft 601 are respectively arranged on the lower template 102, the middle template 103, the upper template 104, and the panel 106. The vertically fixed guide shaft 601 passes through the multiple guide bushings 602 for guiding. The arrangement of the guiding component 6 ensures the linear movement of each layer of die plate layer during the separation process, improving the stability and accuracy of the separation.

[0055] An elastic disengaging gear component 7 is arranged at the bottom of the adjusting screw component 3. The elastic disengaging gear component 7 includes a movable gear 701 arranged at the lower end of the shaft body 302. A gear mounting seat 702 is arranged on the bottom plate component 101 below the movable gear 701. A fixed gear 703 is rotatably mounted on the gear mounting seat 702. A synchronous rotation coupling structure 704 is arranged between the gear mounting seat 702 and the fixed gear 703. An elastic disengaging component 705 is arranged between the fixed gear 703 and the movable gear 701.

[0056] The synchronous rotation coupling structure 704 is used to keep the movable gear 701 and the fixed gear 703 rotating synchronously, but it cannot affect the height position adjustment of the movable gear 701 relative to the fixed gear 703. The synchronous rotation coupling structure 704 includes a polygonal synchronous shaft 7041 arranged on the upper end face of the fixed gear 703. A polygonal synchronous shaft hole 7042 is arranged on the lower end face of the movable gear 701. The polygonal synchronous shaft 7041 is movably inserted into the polygonal synchronous shaft hole 7042, and the contour shapes of the polygonal synchronous shaft hole 7042 and the polygonal synchronous shaft 7041 are the same.

[0057] The elastic disengaging component 705 includes a spring installation groove arranged on the lower end face of the shaft body positioning sleeve 301. A spring structure 7051 is installed in the spring installation groove. A pressing ring 7052 is sleeved outside the shaft body 302 below the shaft body positioning sleeve 301. The spring structure 7051 presses on the upper surface of the pressing ring 7052 and makes the pressing ring 7052 closely adhere to the upper surface of the movable gear 701, pressing the movable gear 701 downward. The elastic disengaging gear component 7 is used to drive the adjusting screw component 3 to move downward after multiple screws 5 stop meshing with the corresponding fixed screw sleeves 4, so that the corresponding screws 5 are disengaged from the corresponding fixed screw sleeves 4.

[0058] A synchronization adjustment component 8 is arranged between multiple demolding and separating components 2. The synchronization adjustment component 8 includes a control cavity 801 arranged inside the bottom plate component 101. A synchronization gear 802 is arranged in the middle of the control cavity 801. A transmission gear 803 is arranged between the synchronization gear 802 and the fixed gear 703. The fixed gear 703 and the movable gear 701 at the same side position are engaged with a corresponding transmission gear 803. The transmission gear 803 and the synchronization gear 802 are in meshing transmission. A worm gear 804 is arranged on the upper end face of the synchronization gear 802. An adjusting worm 805 is horizontally arranged inside the control cavity 801. The adjusting worm 805 and the worm gear 804 are in meshing transmission. The height dimension of the transmission gear 803 is larger than the dimension of the movable range of the movable gear 701 relative to the fixed gear 703. The function of the synchronization adjustment component 8 is to ensure that multiple demolding and separating components 2 can act synchronously to realize the synchronous separation of multiple laminates.

[0059] In the present invention, there are four fixed screw sleeves 4, which are respectively arranged on the lower template 102, the middle template 103, the upper template 104 and the panel 106 and are arranged in alignment with the axial direction of the adjusting screw rod assembly 3.

[0060] In the present invention, the adjusting screw rod assembly 3 includes a shaft body positioning sleeve 301 arranged on the bottom plate component 101. A shaft body 302 is vertically movably arranged inside the shaft body positioning sleeve 301.

[0061] In the present invention, the number of screw rods 5 is four, which are respectively inserted on the corresponding fixed screw sleeves 4 and are in threaded connection with the corresponding fixed screw sleeves 4.

[0062] In the present invention, a guiding component 6 is arranged between multiple mold plate layers 1;

[0063] The guiding component 6 includes a vertical fixed guide shaft 601 arranged on the bottom plate component 101. Guide shaft sleeves 602 axially aligned with the vertical fixed guide shaft 601 are respectively arranged on the lower template 102, the middle template 103, the upper template 104 and the panel 106. The vertical fixed guide shaft 601 passes through multiple guide shaft sleeves 602 for guiding.

[0064] In the present invention, the elastic disengaging gear component 7 includes a movable gear 701 arranged at the lower end of the shaft body 302. A gear mounting seat 702 is arranged on the bottom plate component 101 below the movable gear 701. A fixed gear 703 is rotatably mounted on the gear mounting seat 702. A synchronous rotation coupling structure 704 is arranged between the gear mounting seat 702 and the fixed gear 703. An elastic disengaging component 705 is arranged between the fixed gear 703 and the movable gear 701.

[0065] The synchronous rotation coupling structure 704 of the present invention is used to keep the movable gear 701 and the fixed gear 703 rotating synchronously, but it cannot affect the height position adjustment of the movable gear 701 relative to the fixed gear 703;

[0066] The movable gear 701 and the fixed gear 703 are axially aligned, and their basic dimensional parameters are the same.

[0067] The synchronous rotation coupling structure 704 of the present invention includes a polygonal synchronous shaft 7041 arranged on the upper end face of the fixed gear 703, and a polygonal synchronous shaft hole 7042 is arranged on the lower end face of the movable gear 701. The polygonal synchronous shaft 7041 is movably inserted into the polygonal synchronous shaft hole 7042, and the contour shapes of the polygonal synchronous shaft hole 7042 and the polygonal synchronous shaft 7041 are the same;

[0068] The elastic detachment assembly 705 includes a spring installation groove arranged on the lower end face of the shaft body positioning sleeve 301. A spring structure 7051 is installed in the spring installation groove. A pressing ring 7052 is sleeved outside the shaft body 302 below the shaft body positioning sleeve 301. The spring structure 7051 presses on the upper surface of the pressing ring 7052 and makes the pressing ring 7052 closely adhere to the upper surface of the movable gear 701, so that the movable gear 701 is pressed downward.

[0069] The synchronous adjustment assembly 8 of the present invention includes a control cavity 801 arranged in the bottom plate assembly 101. A synchronous gear 802 is arranged in the middle of the control cavity 801. A transmission gear 803 is arranged between the synchronous gear 802 and the fixed gear 703. The fixed gear 703 and the movable gear 701 at the same side position are engaged with a corresponding transmission gear 803. The transmission gear 803 and the synchronous gear 802 are engaged and transmitted. A worm gear 804 is arranged on the upper end face of the synchronous gear 802. An adjusting worm 805 is horizontally arranged in the control cavity 801. The adjusting worm 805 and the worm gear 804 are engaged and transmitted;

[0070] The height dimension of the transmission gear 803 is greater than the dimension of the movable range of the movable gear 701 relative to the fixed gear 703;

[0071] When the injection mold is in the mold closing state, the multi-layer mold plates 1 are closely attached. The screw 5 on the adjusting screw assembly 3 is in a threaded connection state with each layer of fixed screw sleeves 4. The spring structure 7051 in the elastic detachment gear assembly 7 is in a compressed state. The movable gear 701 and the fixed gear 703 keep synchronous rotation through the synchronous rotation coupling structure 704.

[0072] Synchronous adjustment: By rotating the adjusting worm 805, the worm wheel 804 and the synchronous gear 802 are driven to rotate. The synchronous gear 802 drives each fixed gear 703 and the movable gear 701 to rotate synchronously through the transmission gear 803, so that the adjusting screw assembly 3 starts to rotate.

[0073] Layer separation: When the adjusting screw assembly 3 rotates, due to the threaded connection between the screw 5 and the fixed screw sleeve 4, the lower template 102, the middle template 103, the upper template 104 and the panel 106 of each layer of the die plate start to separate under the drive of the screw 5. Since the pitch of the external thread of the screw 5 gradually increases from bottom to top, when the adjusting screw assembly 3 rotates a specified number of turns, the separation distance of each fixed screw sleeve 4 from bottom to top is larger at the upper position, providing enough separation space for the lower fixed screw sleeve 4. At the same time, the vertical fixed guide shaft 601 in the guiding assembly 6 passes through each guide shaft sleeve 602, ensuring the linear movement of each layer of the die plate during the separation process.

[0074] Screw detachment: When each layer of the die plate separates to a certain extent, the screw 5 stops meshing with the corresponding fixed screw sleeve 4. At this time, the spring structure 7051 in the elastic detachment gear assembly 7 releases elastic force, pushing the pressing ring 7052 and the movable gear 701 to move downward, thereby driving the entire adjusting screw assembly 3 to move downward, so that the corresponding screw 5 detaches from the corresponding fixed screw sleeve 4.

[0075] The mold closing process is opposite to the mold opening process. First, the adjusting screw assembly 3 is moved upward so that the screw 5 is inserted back into the corresponding fixed screw sleeve 4. Then, the adjusting worm 805 is rotated in the reverse direction to drive each layer of the die plate to gradually approach until the mold closing is completed.

[0076] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold with a plate layer separation mechanism, comprising a multi-layer mold plate layer (1), characterized in that: A plurality of demoulding and separation components (2) are arranged between the plurality of mold plate layers (1); The demoulding and separation component (2) comprises an adjusting screw assembly (3) arranged on the bottommost mold plate layer (1) and fixed screw sleeves (4) respectively arranged on the remaining plurality of mold plate layers (1), wherein the diameters of the plurality of fixed screw sleeves (4) gradually decrease from bottom to top, and the adjusting screw assembly (3) is provided with a plurality of screws (5); The diameter of the multi-stage screw (5) gradually decreases from bottom to top; The number of turns of the external threads of the multiple sections of the screw (5) is the same; The pitch of the external threads of the multi-stage screw (5) gradually increases from bottom to top; An elastically disengaging gear assembly (7) is provided at the bottom of the adjusting screw assembly (3); A synchronous adjustment component (8) is arranged between the plurality of demoulding and separation components (2).

2. The injection mold with a plate layer separation mechanism according to claim 1, characterized in that: The plurality of mold plate layers (1) are, from bottom to top, a bottom plate assembly (101), a lower mold plate (102), a middle mold plate (103), an upper mold plate (104) and a panel (106).

3. The injection mold with a plate layer separation mechanism according to claim 2, characterized in that: There are four fixed screw sleeves (4), which are respectively arranged on the lower template (102), the middle template (103), the upper template (104) and the panel (106) and are aligned with the axial direction of the adjusting screw assembly (3).

4. The injection mold with a plate layer separation mechanism according to claim 3, characterized in that: The adjusting screw assembly (3) comprises a shaft positioning sleeve (301) arranged on the base plate assembly (101), and a shaft (302) is movably arranged in the shaft positioning sleeve (301) up and down.

5. The injection mold with a plate layer separation mechanism according to claim 4, characterized in that: There are four screw rods (5), which are respectively inserted into the fixing screw sleeves (4) at corresponding positions and are threadedly connected with the corresponding fixing screw sleeves (4).

6. The injection mold with a plate layer separation mechanism according to claim 5, characterized in that: A guide assembly (6) is provided between the multi-layer mold plate layers (1); The guide assembly (6) comprises a vertical fixed guide shaft (601) arranged on the base plate assembly (101); guide shaft sleeves (602) axially aligned with the vertical fixed guide shaft (601) are respectively arranged on the lower template (102), the middle template (103), the upper template (104) and the panel (106); the vertical fixed guide shaft (601) passes through a plurality of guide shaft sleeves (602) for guidance.

7. The injection mold with a plate layer separation mechanism according to claim 6, characterized in that: The elastically disengaging gear assembly (7) comprises a movable gear (701) arranged at the lower end of the shaft body (302); a gear mounting seat (702) is arranged on the bottom plate assembly (101) below the movable gear (701); a fixed gear (703) is rotatably mounted on the gear mounting seat (702); a synchronously rotating coupling structure (704) is arranged between the gear mounting seat (702) and the fixed gear (703); and an elastically disengaging assembly (705) is arranged between the fixed gear (703) and the movable gear (701).

8. The injection mold with a plate layer separation mechanism according to claim 7, characterized in that: The synchronous rotation coupling structure (704) is used to maintain the synchronous rotation of the movable gear (701) and the fixed gear (703), but cannot affect the height position adjustment of the movable gear (701) relative to the fixed gear (703); The movable gear (701) and the fixed gear (703) are arranged in axial alignment.

9. The injection mold with a plate layer separation mechanism according to claim 8, characterized in that: The synchronous rotation coupling structure (704) comprises a polygonal synchronous shaft (7041) arranged on the upper end surface of the fixed gear (703), a polygonal synchronous shaft hole (7042) is arranged on the lower end surface of the movable gear (701), the polygonal synchronous shaft (7041) is movably inserted into the polygonal synchronous shaft hole (7042), and the polygonal synchronous shaft hole (7042) and the polygonal synchronous shaft (7041) have the same contour shape; The elastic disengagement component (705) includes a spring installation groove arranged on the lower end surface of the shaft positioning sleeve (301), and a spring structure (7051) is installed in the spring installation groove. The shaft (302) below the shaft positioning sleeve (301) is provided with a clamping ring (7052). The spring structure (7051) is pressed against the upper surface of the clamping ring (7052), and the clamping ring (7052) is pressed against the upper surface of the movable gear (701), so that the movable gear (701) is pressed downward.

10. The injection mold with a plate layer separation mechanism according to claim 9, characterized in that: The synchronous adjustment component (8) comprises a control chamber (801) arranged in the base plate component (101), a synchronous gear (802) is arranged in the middle of the control chamber (801), a transmission gear (803) is arranged between the synchronous gear (802) and the fixed gear (703), the fixed gear (703) and the movable gear (701) at the same side position are meshed with a corresponding one of the transmission gears (803), the transmission gear (803) and the synchronous gear (802) are meshed for transmission, a worm gear (804) is arranged on the upper end surface of the synchronous gear (802), an adjustment worm (805) is arranged transversely in the control chamber (801), and the adjustment worm (805) and the worm gear (804) are meshed for transmission; The height dimension of the transmission gear (803) is greater than the dimension of the movable range of the movable gear (701) relative to the fixed gear (703).

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