Injection mold system with multi-stage pitched roof synchronous demolding structure and injection molding method

Abstract

The invention discloses an injection mold system with a multi-stage pitched roof synchronous demolding structure and an injection molding method, and relates to the technical field of injection molds, the injection mold system comprises a sliding seat, a lower mold, an upper mold and a lower mold, the interior of the sliding seat is rotatably connected with a driving screw rod, and the outer side of the sliding seat is slidably connected with a lifting seat; an upper mold is arranged at the top of the lower mold; an injection port is formed in the top of the upper mold; plastic left in the injection molding nozzle is cleaned through the cleaning mechanism, the injection molding opening is cleaned every time, meanwhile, the injection molding nozzle is cleaned every time, plastic residues are avoided, and after injection molding every time, the injection molding opening and the injection molding nozzle are subjected to double-key-point cleaning; and the problems of nozzle blockage, wire drawing or pollution of next injection molding products caused by cold materials or defective materials are fundamentally avoided.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, and in particular to an injection mold system and injection method with a multi-stage inclined ejector synchronous demolding structure. Background Technology

[0002] Injection molds are tools used to produce plastic products. Specifically, they refer to the process of injecting molten plastic into a mold cavity under high pressure using an injection molding machine, and then cooling and solidifying it to obtain the molded product.

[0003] Referring to patent application CN212636501U, a smart injection mold system is disclosed. This system includes a mold body, an inlet pressure sensor, a temperature sensor, a data visualization unit, and a data analysis and closed-loop control unit. The mold body has a mold cavity. The inlet pressure sensor is located at the inlet of the mold body and is used to detect the pressure data of the fluid flowing through the inlet. The temperature sensor is located on the mold body and is used to detect the temperature data of the mold body. The data visualization unit is electrically connected to the inlet pressure sensor and the temperature sensor to visualize the pressure data detected by the inlet pressure sensor and the temperature data detected by the temperature sensor. This invention can monitor various production data in real time during the injection molding process, improve production efficiency, and does not rely excessively on the experience of workers, thus ensuring product quality.

[0004] After each injection, plastic residue often remains inside the injection nozzle and at the interface of the mold. This residual plastic cools and forms "cold material," which, if not effectively removed, will cause a series of problems in subsequent production: First, it may cause localized blockage of the injection nozzle or injection port, affecting the stability of melt flow; second, it can easily cause "stringing" during mold opening, contaminating the mold cavity or product appearance; third, if this cold material mixes into the melt of the next injection, it can lead to defects, inclusions, or weak areas in the product's mechanical properties, severely affecting the final product's molding quality and yield.

[0005] Therefore, it is necessary to provide an injection mold system and injection method with a multi-stage inclined ejector synchronous demolding structure to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide an injection mold system and injection method with a multi-stage inclined ejector synchronous demolding structure, so as to solve the problems of the prior art mentioned in the background art.

[0007] Based on the above ideas, the present invention provides the following technical solution: an injection mold system with a multi-stage inclined ejector synchronous demolding structure, including a sliding seat, a drive screw rotatably connected inside the sliding seat, and a lifting seat slidably connected outside the sliding seat, and further comprising: The lower mold is fixedly connected to the bottom of the sliding seat, and the upper mold is provided on the top of the lower mold. The injection port is provided on the top of the upper mold. The injection molding machine is fixedly connected to the outside of the lifting base. The bottom of the injection molding machine is equipped with an injection nozzle for injection molding. The top of the upper mold is equipped with a contact plate. Two opposing cutters are provided on both sides of the injection hole at the top of the upper mold. A pushing component is provided between the contact plate and the two cutters. When the injection nozzle finishes injection molding, the two cutters move relative to each other to cut off the injection point. A rotating plate is rotatably connected to the top of the upper mold, and a cleaning mechanism for cleaning the injection nozzle is provided on the top of the rotating plate.

[0008] As a further embodiment of the present invention: a movable rod is fixedly connected to the outer side of each of the two cutters, and a fixed plate is slidably connected to the outer side of the movable rod. The fixed plate is fixedly connected to the top of the upper mold. A second spring is sleeved on the outer side of the movable rod, and the two ends of the second spring are fixedly connected to the fixed plate and one end of the movable rod, respectively.

[0009] As a further embodiment of the present invention: the pushing member includes two sliding rods, both of which pass through the contact plate and are slidably connected to the contact plate, and a first spring is sleeved on the outside of the sliding rods. A lower pressure plate is fixedly connected to the outside of the contact plate, and a sliding groove is opened on the outside of the lower pressure plate.

[0010] As a further embodiment of the present invention: the pusher also includes two sliding plates, which are respectively fixedly connected to two cutters. A push shaft is fixedly connected inside each of the two sliding plates, and the push shaft is disposed inside the sliding groove and slidably connected to the lower pressure plate.

[0011] As a further embodiment of the present invention: a rotating rod is fixedly connected to the bottom of the rotating plate, the rotating rod is rotatably connected to the top of the upper mold, a first gear is fixedly connected to the outside of the rotating rod, a second gear is meshed with the outside of the first gear, a first motor is fixedly connected to the top of the upper mold, and the output shaft of the first motor is fixedly connected to the second gear.

[0012] As a further embodiment of the present invention: the cleaning mechanism includes a rotating disk, which passes through a rotating plate and is rotatably connected to the rotating plate. A plurality of cutting rods are fixedly connected to the top of the rotating disk. A lifting plate is provided on the top of the rotating plate and is sleeved on the outside of the rotating disk. A rotating rod is fixedly connected to the bottom of the rotating disk. A reciprocating screw is provided on the top of the rotating plate, which passes through the lifting plate and the rotating plate. The reciprocating screw is connected to a ball nut pair of the lifting plate and is rotatably connected to the rotating plate. A fixing rod is fixedly connected to the top of the rotating plate, which passes through the lifting plate and is slidably connected to the lifting plate.

[0013] As a further embodiment of the present invention: the cleaning mechanism further includes two pulleys, which are respectively fixedly connected to the outside of the reciprocating screw and the rotating rod, and the two pulleys are connected by belt drive. A fixing ring is fixedly connected to the top of the lifting plate, and a heating wire is provided inside the fixing ring.

[0014] As a further embodiment of the present invention: multiple magnetic plates are fixedly connected to the outer side of the fixed ring, a rotating ring is rotatably connected to the top of the lifting plate, multiple negative magnetic plates are provided on the inner side of the rotating ring, the negative magnetic plates and the magnetic plates are magnetically repelled, a contact wheel is rotatably connected to the outer side of the negative magnetic plates, and a return spring and a telescopic rod are fixedly connected between the negative magnetic plates and the rotating ring, with the return spring sleeved on the outer side of the telescopic rod.

[0015] As a further embodiment of the present invention: a spiral groove is provided on the outer side of the fixed rod, a transmission wheel is provided on the outer side of the fixed rod, a guide shaft is fixedly connected to the inner wall of the transmission wheel, the guide shaft extends into the spiral groove, a transmission ring is fixedly connected to the outer side of the rotating ring, and the transmission ring and the transmission wheel are connected by belt drive.

[0016] An injection molding method for an injection mold with a multi-stage inclined ejector synchronous demolding structure includes the following steps: Step 1: Assemble the lower mold and upper mold and install them on the outside of the sliding seat; Step 2: The injection molding machine is lowered by the drive screw, so that the injection nozzle aligns with the injection port and pushes the contact plate, which in turn drives the two cutters away from each other through the pusher. Step 3: After injection molding is completed, the injection molding machine rises. At this time, the pusher drives the cutter to reset and cut off the plastic head at the injection port. Step 4: Finally, the cleaning mechanism is used to clean the residual plastic inside the injection nozzle.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The cleaning mechanism cleans the plastic residue inside the injection nozzle. The injection port and the injection nozzle are cleaned every time to avoid plastic residue. After each injection, the injection port and the injection nozzle are cleaned in a "double-focus" manner, which fundamentally avoids the problems of nozzle blockage, stringing or contamination of the next injection product caused by cold material or residual material.

[0018] 2. Cut the plastic at the injection nozzle and injection port. Before each injection, the cutter should move aside to ensure that the injection channel is completely unobstructed. After injection, cut immediately to prevent the cold material remaining outside the injection port from clogging the channel or affecting the filling of new molten material in the next injection. This ensures the stability and consistency of each injection and fundamentally improves the molding quality of the product.

[0019] 3. They can effectively crush and peel off residual plastic adhering to the inner wall, solving the problem of deep hole cleaning. The reciprocating screw drives the lifting plate to move back and forth, and the fixing ring at the top of the lifting plate provides precise local heating to the outside of the injection nozzle. This operation can soften or even melt the plastic residue inside, significantly reducing the adhesion of the plastic, making the internal mechanical scraping easier and more thorough. The two work together to achieve deep cleaning from the inside out.

[0020] 4. The rising contact wheel of the lifting plate continuously strikes the outer side of the injection nozzle. The transmission system precisely converts the linear motion of the lifting plate into the rotational motion of the rotating ring, which in turn drives the negative magnetic plate to perform periodic magnetic interaction and mechanical reset with the fixed magnetic plate. This process causes the contact wheel to generate continuous, high-frequency micro-vibrations striking the outer side of the injection nozzle. This vibration can be effectively transmitted to the inside of the injection nozzle, loosening and removing tightly adhered micro-plastic particles that are difficult to remove by scraping with the rotating cutting rod alone. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the contact plate structure of the present invention; Figure 3 This is a schematic diagram of the mold structure of the present invention; Figure 4 This is a schematic diagram of the pushing component structure of the present invention; Figure 5 This is a schematic diagram of the rotating plate structure of the present invention; Figure 6 This is a schematic diagram of the cutting rod structure of the present invention; Figure 7 This is a schematic diagram of the lifting plate structure of the present invention; Figure 8 This is a schematic diagram of the fixing ring structure of the present invention; Figure 9 This is the present invention. Figure 8 A magnified structural diagram of part A; Figure 10 This is a schematic diagram of the transmission wheel structure of the present invention.

[0023] In the diagram: 1. Sliding seat; 101. Drive screw; 2. Lifting seat; 201. Injection molding machine; 202. Injection nozzle; 301. Lower mold; 302. Upper mold; 4. Contact plate; 401. Sliding rod; 402. First spring; 403. Lower pressure plate; 404. Sliding groove; 405. Sliding plate; 406. Push shaft; 501. Cutter; 503. Fixed plate; 504. Moving rod; 505. Second spring; 6. Rotating plate; 600. Rotating rod; 601. First tooth 602. Gear; 603. First motor; 701. Rotating disk; 702. Cutting rod; 8. Lifting plate; 801. Fixed ring; 802. Rotating ring; 803. Magnetic plate; 804. Negative magnetic plate; 805. Contact wheel; 806. Telescopic rod; 807. Return spring; 901. Rotating rod; 902. Reciprocating screw; 903. Pulley; 904. Drive motor; 1001. Transmission ring; 1002. Transmission wheel; 1003. Fixed rod; 1004. Guide shaft. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0026] like Figures 1 to 10 As shown, an injection mold system and injection method with a multi-stage inclined ejector synchronous demolding structure include the following embodiments: The system includes a sliding seat 1, with a drive screw 101 rotatably connected inside the sliding seat 1, and a lifting seat 2 slidably connected to the outside of the sliding seat 1. It also includes: The lower mold 301 is fixedly connected to the bottom end of the sliding seat 1. The upper mold 302 is provided on the top of the lower mold 301, and the injection port is provided on the top of the upper mold 302. Injection molding machine 201 is fixedly connected to the outside of lifting base 2. The bottom of injection molding machine 201 is provided with injection nozzle 202 for injection molding. The top of upper mold 302 is provided with contact plate 4. Two opposing cutters 501 are provided on both sides of the injection hole at the top of upper mold 302. A pusher is provided between contact plate 4 and the two cutters 501. When the injection nozzle 202 finishes injection molding, the two cutters 501 move relative to each other to cut off the injection point. Rotating plate 6 is rotatably connected to the top of upper mold 302. The top of rotating plate 6 is provided with a cleaning mechanism for cleaning injection nozzle 202.

[0027] In practice, the lower mold 301 and the upper mold 302 are assembled and installed on the outside of the sliding seat 1. The injection molding machine 201 is driven down by the drive screw 101, so that the injection nozzle 202 aligns with the injection port and pushes the contact plate 4. Then, the pusher drives the two cutters 501 to move away from each other. After injection, the injection molding machine 201 rises. At this time, the pusher drives the cutter 501 to reset and cut off the plastic head at the injection port. Finally, the cleaning mechanism cleans the plastic residue inside the injection nozzle 202. The injection port is cleaned every time, and the injection nozzle 202 is also cleaned every time to avoid plastic residue. After each injection, the injection port and the injection nozzle are cleaned in a "double-focus" manner, which fundamentally avoids the problems of nozzle blockage, stringing, or contamination of the next injection product caused by cold material or residual material.

[0028] Example 2: A movable rod 504 is fixedly connected to the outer side of each of the two cutters 501. A fixed plate 503 is slidably connected to the outer side of the movable rod 504. The fixed plate 503 is fixedly connected to the top of the upper mold 302. A second spring 505 is sleeved on the outer side of the movable rod 504. The two ends of the second spring 505 are fixedly connected to the fixed plate 503 and one end of the movable rod 504, respectively.

[0029] The pusher includes two sliding rods 401, both of which pass through the contact plate 4 and are slidably connected to the contact plate 4. A first spring 402 is sleeved on the outside of the sliding rods 401. A lower pressure plate 403 is fixedly connected to the outside of the contact plate 4, and a sliding groove 404 is opened on the outside of the lower pressure plate 403.

[0030] The pusher also includes two sliding plates 405, which are fixedly connected to two cutters 501 respectively. Each of the two sliding plates 405 has a push shaft 406 fixedly connected inside. The push shaft 406 is located inside the sliding groove 404 and is slidably connected to the lower pressure plate 403.

[0031] In specific implementation, when the outer side of the injection nozzle 202 contacts the top of the contact plate 4, the injection nozzle 202 drives the contact plate 4 to descend together. The contact plate 4 drives the lower pressure plates 403 on both sides to descend together. At this time, the sliding groove 404 opened on the outer side of the lower pressure plate 403 pushes the push shaft 406 inside the sliding groove 404, causing the push shaft 406 to slide along the trajectory of the sliding groove 404. This causes the push shaft 406 to drive the fixedly connected sliding plate 405 to move outward. Then, the two moving rods 504 respectively drive the two cutters 501 to move away, and the cutters 501 expose the injection port. The moving rod 504 on one side of the cutter 501 passes through the fixed... The sliding plate 503 slides, stretching the second spring 505. After injection molding is completed, the injection nozzle 202 rises, and the contact plate 4 drives the lower pressure plate 403 to rise. Under the action of the lower pressure plate 403 and the second spring 505, the sliding plate 405 pushes the cutter 501 to reset, cutting off the plastic at the injection nozzle 202. Before each injection, the cutter makes way to ensure that the injection channel is completely unobstructed. After injection molding is completed, it is cut off immediately to prevent the cold material remaining outside the injection port from clogging the channel or affecting the filling of new melt during the next injection. This ensures the stability and consistency of each injection, fundamentally improving the molding quality of the product.

[0032] Example 3: A rotating rod 600 is fixedly connected to the bottom of the rotating plate 6. The rotating rod 600 is rotatably connected to the top of the upper mold 302. A first gear 601 is fixedly connected to the outside of the rotating rod 600. A second gear 602 is meshed with the outside of the first gear 601. A first motor 603 is fixedly connected to the top of the upper mold 302. The output shaft of the first motor 603 is fixedly connected to the second gear 602.

[0033] The cleaning mechanism includes a rotating disk 701, which passes through and is rotatably connected to a rotating plate 6. Multiple cutting rods 702 are fixedly connected to the top of the rotating disk 701. A lifting plate 8 is provided on the top of the rotating plate 6 and is sleeved on the outside of the rotating disk 701. A rotating rod 901 is fixedly connected to the bottom of the rotating disk 701. A reciprocating screw 902 is provided on the top of the rotating plate 6, passing through the lifting plate 8 and the rotating plate 6. The reciprocating screw 902 is connected to a ball nut assembly of the lifting plate 8 and is rotatably connected to the rotating plate 6. A fixing rod 1003 is fixedly connected to the top of the rotating plate 6, passing through the lifting plate 8 and slidably connected to it.

[0034] The cleaning mechanism also includes two pulleys 903, which are fixedly connected to the outside of the reciprocating screw 902 and the rotating rod 901 respectively, and the two pulleys 903 are connected by belt drive. A fixing ring 801 is fixedly connected to the top of the lifting plate 8, and a heating wire is provided inside the fixing ring 801.

[0035] In practice, when it is necessary to clean the injection nozzle 202, the first motor 603 is started, which drives the second gear 602 to rotate. The second gear 602 drives the meshing first gear 601 to rotate, and the first gear 601 drives the fixedly connected rotating rod 600 to rotate. The rotating rod 600 drives the rotating plate 6 to rotate below the injection nozzle 202, so that the cleaning mechanism at the top of the rotating plate 6 can clean the inner wall of the injection nozzle 202. The lifting seat 2 is lowered by the drive screw 101, causing multiple cutting rods 702 on the top of the rotating disk 701 to insert into the injection nozzle 202. The drive motor 904 drives the reciprocating screw 902 to rotate. The reciprocating screw 902 and the rotating rod 901 are connected by a pulley 903 and a belt drive, thus rotating the rotating disk 701. The rotating disk 701 drives the multiple cutting rods 702 to rotate around the injection nozzle 202, thus inserting the plastic into the injection nozzle 202. 02 The inner wall is peeled off, which can effectively crush and peel off the residual plastic attached to the inner wall, solving the problem of deep hole cleaning. The reciprocating screw 902 drives the lifting plate 8 to move back and forth. The fixing ring 801 at the top of the lifting plate 8 provides precise local heating to the outside of the injection nozzle 202. This operation can soften or even melt the plastic residue inside, significantly reducing the adhesion of the plastic, making the internal mechanical scraping easier and more thorough. The two work together to achieve deep cleaning from the inside out.

[0036] Example 4: A plurality of magnetic plates 803 are fixedly connected to the outside of the fixed ring 801. A rotating ring 802 is rotatably connected to the top of the lifting plate 8. A plurality of negative magnetic plates 804 are provided on the inside of the rotating ring 802. The negative magnetic plates 804 and the magnetic plates 803 are magnetically repelled. A contact wheel 805 is rotatably connected to the outside of the negative magnetic plates 804. A return spring 807 and a telescopic rod 806 are fixedly connected between the negative magnetic plates 804 and the rotating ring 802. The return spring 807 is sleeved on the outside of the telescopic rod 806.

[0037] A spiral groove is provided on the outer side of the fixed rod 1003, and a transmission wheel 1002 is provided on the outer side of the fixed rod 1003. A guide shaft 1004 is fixedly connected to the inner wall of the transmission wheel 1002, and the guide shaft 1004 extends into the spiral groove. A transmission ring 1001 is fixedly connected to the outer side of the rotating ring 802, and the transmission ring 1001 and the transmission wheel 1002 are connected by belt drive.

[0038] In specific implementation, when the reciprocating screw 902 drives the lifting plate 8 to rise, the lifting plate 8 drives the top transmission wheel 1002. The guide shaft 1004, fixedly connected to the inner wall of the transmission wheel 1002, rotates along the spiral groove opened on the outer side of the fixed rod 1003. The transmission wheel 1002 drives the transmission ring 1001 to rotate via a belt. The transmission ring 1001 drives the rotating ring 802 to rotate. The rotating ring 802 drives the negative magnetic plate 804 to rotate via the telescopic rod 806 and the return spring 807. The negative magnetic plate 804 rotates along the outer side of the fixed ring 801. The magnetic plate 803 and... The negative magnetic plate 804 is misaligned. At this time, under the action of the return spring 807, the negative magnetic plate 804 is pushed closer to the fixed ring 801, causing the contact wheel 805 on the outer side of the negative magnetic plate 804 to strike the outer side of the injection nozzle 202, causing the plastic inside the injection nozzle 202 to fall off. As the lifting plate 8 rises, the contact wheel 805 continuously strikes the outer side of the injection nozzle 202 comprehensively. The transmission system precisely converts the linear motion of the lifting plate 8 into the rotational motion of the rotating ring 802, thereby driving the negative magnetic plate 804 and the fixed magnetic plate 803 to undergo periodic magnetic interaction and mechanical reset. This process causes the contact wheel 805 to generate continuous, high-frequency micro-vibration strikes on the outer side of the injection nozzle 202. This vibration can be effectively transmitted to the inside of the injection nozzle 202, loosening and dislodging the tightly adhered micro-plastic particles that are difficult to remove by scraping with the rotating cutting rod 702 alone.

[0039] The tapping action using the contact wheel 805 is a flexible or semi-flexible contact, which avoids scratches or deformations that may be caused by direct hard impacts from metal parts on the surface of the injection nozzle 202. While cleaning efficiently, it effectively protects the precision injection molded parts and extends their service life.

[0040] An injection molding method for an injection mold with a multi-stage inclined ejector synchronous demolding structure includes the following steps: Step 1: Assemble the lower mold 301 and the upper mold 302 and install them on the outside of the sliding seat 1; Step 2: Drive the lead screw 101 to lower the injection molding machine 201, so that the injection nozzle 202 connects with the injection port and pushes the contact plate 4, which in turn drives the two cutters 501 to move away from each other through the pusher. Step 3: After injection molding is completed, the injection molding machine 201 rises. At this time, the pusher drives the cutter 501 to reset and cut off the plastic head at the injection port. Step 4: Finally, the cleaning mechanism is used to clean the residual plastic inside the injection nozzle 202.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An injection mold system with a multi-stage inclined ejector synchronous demolding structure, comprising a sliding seat (1), a drive screw (101) rotatably connected inside the sliding seat (1), and a lifting seat (2) slidably connected outside the sliding seat (1), characterized in that, Also includes: The lower mold (301) is fixedly connected to the bottom end of the sliding seat (1). The upper mold (302) is provided on the top of the lower mold (301). The upper mold (302) is provided on the top of the upper mold (302). Injection molding machine (201) is fixedly connected to the outside of the lifting seat (2). The bottom of the injection molding machine (201) is provided with an injection nozzle (202) for injection molding. The top of the upper mold (302) is provided with a contact plate (4). Two opposing cutters (501) are provided on both sides of the injection hole at the top of the upper mold (302). A pusher is provided between the contact plate (4) and the two cutters (501). When the injection nozzle (202) finishes injection molding, the two cutters (501) move relative to each other to cut off the injection point. Rotating plate (6) is rotatably connected to the top of the upper mold (302). The top of the rotating plate (6) is provided with a cleaning mechanism for cleaning the injection nozzle (202).

2. The injection mold system with a multi-stage inclined ejector synchronous demolding structure according to claim 1, characterized in that: Two cutting blades (501) are fixedly connected to a moving rod (504) on their outer sides. A fixed plate (503) is slidably connected to the outer side of the moving rod (504). The fixed plate (503) is fixedly connected to the top of the upper mold (302). A second spring (505) is sleeved on the outer side of the moving rod (504). The two ends of the second spring (505) are fixedly connected to the fixed plate (503) and one end of the moving rod (504), respectively.

3. The injection mold system with a multi-stage inclined ejector synchronous demolding structure according to claim 2, characterized in that: The pusher includes two sliding rods (401), both of which pass through the contact plate (4) and are slidably connected to the contact plate (4). A first spring (402) is sleeved on the outside of the sliding rods (401). A lower pressure plate (403) is fixedly connected to the outside of the contact plate (4), and a sliding groove (404) is opened on the outside of the lower pressure plate (403).

4. The injection mold system with a multi-stage inclined ejector synchronous demolding structure according to claim 3, characterized in that: The pusher also includes two sliding plates (405), which are fixedly connected to two cutters (501) respectively. A push shaft (406) is fixedly connected inside each of the two sliding plates (405). The push shaft (406) is located inside the sliding groove (404) and is slidably connected to the lower pressure plate (403).

5. The injection mold system with a multi-stage inclined ejector synchronous demolding structure according to claim 1, characterized in that: A rotating rod (600) is fixedly connected to the bottom of the rotating plate (6). The rotating rod (600) is rotatably connected to the top of the upper mold (302). A first gear (601) is fixedly connected to the outside of the rotating rod (600). A second gear (602) is meshed with the outside of the first gear (601). A first motor (603) is fixedly connected to the top of the upper mold (302). The output shaft of the first motor (603) is fixedly connected to the second gear (602).

6. The injection mold system with a multi-stage inclined ejector synchronous demolding structure according to claim 5, characterized in that: The cleaning mechanism includes a rotating disk (701), which passes through a rotating plate (6) and is rotatably connected to the rotating plate (6). A plurality of cutting rods (702) are fixedly connected to the top of the rotating disk (701). A lifting plate (8) is provided on the top of the rotating plate (6) and is sleeved on the outside of the rotating disk (701). A rotating rod (901) is fixedly connected to the bottom of the rotating disk (701). A reciprocating screw (902) is provided on the top of the rotating plate (6). The reciprocating screw (902) passes through the lifting plate (8) and the rotating plate (6). The reciprocating screw (902) is connected to the ball nut pair of the lifting plate (8). The reciprocating screw (902) is rotatably connected to the rotating plate (6). A fixing rod (1003) is fixedly connected to the top of the rotating plate (6). The fixing rod (1003) passes through the lifting plate (8) and is slidably connected to the lifting plate (8).

7. The injection mold system with a multi-stage inclined ejector synchronous demolding structure according to claim 6, characterized in that: The cleaning mechanism also includes two pulleys (903), which are fixedly connected to the outside of the reciprocating screw (902) and the rotating rod (901) respectively, and the two pulleys (903) are connected by belt drive. The top of the lifting plate (8) is fixedly connected to a fixing ring (801), and a heating wire is provided inside the fixing ring (801).

8. The injection mold system with a multi-stage inclined ejector synchronous demolding structure according to claim 7, characterized in that: Multiple magnetic plates (803) are fixedly connected to the outside of the fixed ring (801). A rotating ring (802) is rotatably connected to the top of the lifting plate (8). Multiple negative magnetic plates (804) are provided on the inside of the rotating ring (802). The negative magnetic plates (804) and the magnetic plates (803) are magnetically repelled. A contact wheel (805) is rotatably connected to the outside of the negative magnetic plates (804). A return spring (807) and a telescopic rod (806) are fixedly connected between the negative magnetic plates (804) and the rotating ring (802). The return spring (807) is sleeved on the outside of the telescopic rod (806).

9. The injection mold system with a multi-stage inclined ejector synchronous demolding structure according to claim 8, characterized in that: The fixed rod (1003) has a spiral groove on its outer side, and a transmission wheel (1002) is provided on the outer side of the fixed rod (1003). A guide shaft (1004) is fixedly connected to the inner wall of the transmission wheel (1002). The guide shaft (1004) extends into the spiral groove. A transmission ring (1001) is fixedly connected to the outer side of the rotating ring (802). The transmission ring (1001) and the transmission wheel (1002) are connected by a belt drive.

10. An injection molding method for an injection mold with a multi-stage inclined ejector synchronous demolding structure, employing the injection mold system with a multi-stage inclined ejector synchronous demolding structure as described in any one of claims 1 to 9, characterized in that: Includes the following steps: Step 1: Assemble the lower mold (301) and the upper mold (302) and install them on the outside of the sliding seat (1); Step 2: Drive the injection molding machine (201) down by driving the lead screw (101), so that the injection nozzle (202) connects with the injection port and pushes the contact plate (4), and then drives the two cutters (501) away from each other through the pusher; Step 3: After injection molding is completed, the injection molding machine (201) rises. At this time, the pusher drives the cutter (501) to reset and cut off the plastic head at the injection port. Step 4: Finally, the remaining plastic inside the injection nozzle (202) is cleaned by the cleaning mechanism.

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