A high-strength SMC sheet press molding device

Abstract

The utility model relates to mould forming equipment technical field discloses a kind of high-strength SMC sheet pressing forming device, and the device includes pressing machine, hydraulic press, upper and lower mould, and special fixing assembly and ejector assembly, the fixing assembly utilizes first electric push rod drive rotary rod, cooperate the slide bar on fixed seat with the spiral groove on rotary rod, drive press bar rotation and compact sheet edge, the ejector assembly utilizes second electric push rod and pushes the slider with inclined plane, and it is vertically ejected by roller drive sliding rod and top plate. The utility model solves the problem that sheet laying is easy to wrinkle by spiral guide compacting mechanism, solves the problem that it is difficult to demould after forming by wedge-shaped force-increasing ejector mechanism, significantly improves the forming quality and production efficiency of SMC sheet.

Description

Technical Field

[0001] This utility model relates to the field of mold forming equipment technology, and in particular to a high-strength SMC sheet pressing and forming device. Background Technology

[0002] SMC material is widely used in the manufacture of automotive, construction, and electrical components due to its excellent mechanical properties and corrosion resistance. In the compression molding process of SMC sheets, the cut sheets are typically placed in a high-temperature mold and cured under high pressure using a hydraulic press.

[0003] However, in existing compression molding processes, the main method relies on manual placement of the sheet material into the lower mold. Due to the inherent viscosity and fluidity of SMC sheets, and the fact that the mold is typically heated, manual placement easily leads to curling edges or uneven laying. If the sheet is directly molded with wrinkles, it can result in serious quality defects such as air bubbles, cracks, or uneven thickness in the final product. Furthermore, after SMC material is molded under high temperature and pressure, the product often adheres tightly to the cavity of the lower mold. Conventional mold structures lack effective demolding mechanisms, requiring workers to use tools to pry it out. This is not only labor-intensive and inefficient, but also easily scratches the mold surface or damages the newly formed product.

[0004] Therefore, this utility model proposes a high-strength SMC sheet pressing and molding device to overcome the shortcomings of the prior art. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-strength SMC sheet pressing and molding device, which aims to improve the problems in the existing SMC sheet pressing and molding equipment, such as the easy generation of edge wrinkles during the sheet laying and fixing process, resulting in low finished product qualification rate, and the tight adhesion between the molded product and the mold, resulting in difficult demolding and low production efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength SMC sheet pressing and molding device, comprising a press, a hydraulic press, an upper mold, a base and a lower mold; as well as a fixing component and an ejection component;

[0007] The fixing component has a structure that uses a helical guide to convert linear motion into a combined rotational downward pressing motion, and the ejection component has a structure that uses an inclined slider to convert horizontal thrust into vertical ejection force.

[0008] Furthermore, the pressing machine, the base, the fixing component, and the ejection component are combined through embedded installation and linkage. Specifically, the fixing assembly includes a first electric push rod, a rotating rod, and a fixed base. The first electric push rod is installed inside the press, and its output end is connected to the rotating rod. The fixed base is fixed to the top of the base, and the rotating rod passes through the fixed base. A groove is formed on the side wall of the rotating rod, and a sliding rod is fixed to the fixed base. The sliding rod is slidably engaged inside the groove. A fixed plate is fixed to the top of the rotating rod, and a pressure rod is fixed to the bottom of the fixed plate. The ejection assembly is located in a cavity in the base. The ejection assembly includes a bracket, a second electric push rod, a slider, and a sliding rod. The bracket is fixed to the inner wall of the cavity, and the second electric push rod is installed on the side wall of the bracket. A guide rail is fixed to the bottom of the bracket, and the output end of the second electric push rod is connected to the slider. The slider is slidably engaged with the guide rail. The upper surface of the slider is constructed with an inclined cam profile. The sliding rod is vertically slidably connected to the inside of the bracket. A roller is rotatably connected to the bottom end of the sliding rod, and the roller abuts against the upper surface of the slider. A top plate located inside the lower mold is fixed to the top end of the sliding rod.

[0009] Preferably, a first spring is sleeved on the side wall of the rotating rod in the fixing assembly. One end of the first spring is fixedly connected to the bottom of the fixing seat, and the other end of the first spring is fixedly connected to the side wall of the rotating rod. This first spring is used to eliminate gaps during the movement of the rotating rod and to provide flexible cushioning when the pressure rod contacts the sheet material.

[0010] Preferably, a second spring is sleeved on the outer wall of the sliding rod in the ejection assembly. One end of the second spring is fixedly connected to the side wall of the sliding rod, and the other end of the second spring is fixedly connected to the side wall of the bracket. The second spring is used to assist the sliding rod and the top plate to quickly return to the initial height by means of the rebound force after the ejection action is completed.

[0011] Preferably, the groove in the fixing assembly has a spiral structure. The first electric push rod drives the rotating rod to extend and retract, and at the same time, the sliding rod cooperates with the groove to drive the rotating rod to rotate. The pressure rod rotates with the rotating rod and fixes the sheet. Through this spiral cooperation, the pressure rod can be rotated out to avoid the position in the non-working state and rotated in to press in the working state.

[0012] Preferably, slide rails are fixedly connected to both sides of the inner wall of the press, and the two side walls of the upper mold are slidably connected to the surface of the slide rails. The slide rails effectively restrict the horizontal degree of freedom of the upper mold and ensure high-precision guidance during the mold closing process.

[0013] Preferably, a control panel is fixedly installed on the side wall of the press. The control panel is electrically connected to the hydraulic press, the first electric push rod and the second electric push rod respectively. Through the integrated control panel, automated centralized control of each process of pressing, fixing and ejection is realized.

[0014] Preferably, the lower mold has a cavity that mates with the top plate. The top plate is slidably and sealingly fitted to the bottom of the cavity, and the upper surface of the top plate is flush with the upper surface of the lower mold. This design ensures the flatness of the bottom of the mold cavity and prevents the molding material from seeping into the gap of the ejection mechanism.

[0015] Preferably, the fixing plate is vertically fixed to the top of the rotating rod, and the pressure rod is vertically fixed to the bottom edge of the fixing plate. This cantilever structure expands the working radius of the pressure rod, enabling it to adapt to the edge clamping requirements of molds of different sizes.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model, by setting a fixed component, uses a first electric push rod to drive a rotating rod, and cooperates with the guide structure formed by the sliding rod on the fixed seat and the spiral groove on the rotating rod to realize the composite motion trajectory of the pressure rod "rotating and pressing down at the same time". This solves the problem of displacement and edge wrinkling that easily occurs when manually laying SMC sheets in the prior art. It achieves the technical effects of automatically compacting the edge of the sheet, ensuring the flatness of the laying, improving the molding yield, and automatically rotating the pressure rod out to avoid the part picking space when not in use.

[0018] 2. This utility model, by setting an ejection component, uses a second electric push rod to drive the inclined slider to move horizontally. In conjunction with rollers and vertical sliding rods, it uses the wedge force amplification principle to convert the horizontal thrust into a vertical ejection force. This solves the problem in the prior art that SMC sheets are easy to adhere to the lower mold cavity after high-temperature curing, resulting in difficult demolding and easy damage to the product. It achieves the technical effect of large ejection force, stable operation, automatic demolding assistance, and no need for manual prying.

[0019] 3. This utility model, by setting a second spring on the outer wall of the sliding rod and a first spring on the outer wall of the rotating rod, respectively utilizes the elastic potential energy of the springs to assist the mechanism in resetting and eliminating the fit clearance, thus solving the problem that the mechanical transmission mechanism is prone to loosening or untimely resetting during long-term reciprocating motion, achieving the technical effects of improving the operating accuracy of the device, extending the service life of the components, and providing flexible buffer protection. Attached Figure Description

[0020] Figure 1 This is a perspective view of a high-strength SMC sheet pressing and molding device proposed in this utility model;

[0021] Figure 2This is a schematic diagram of the fixing component of a high-strength SMC sheet pressing and molding device proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the ejector assembly of a high-strength SMC sheet pressing and molding device proposed in this utility model;

[0023] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0025] Legend:

[0026] 1. Pressing machine; 2. Hydraulic press; 3. Upper mold; 4. Base; 5. Lower mold; 6. Fixing assembly; 601. First electric push rod; 602. Rotating rod; 603. First spring; 604. Fixing seat; 605. Groove; 606. Slide rod; 607. Fixing plate; 608. Press rod; 7. Slide rail; 8. Ejection assembly; 801. Cavity; 802. Second electric push rod; 803. Bracket; 804. Slider; 805. Guide rail; 806. Slide rod; 807. Second spring; 808. Roller; 809. Top plate; 9. Control panel. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figures 1-5 The present invention provides an embodiment of a high-strength SMC sheet pressing and molding device, comprising a press 1 as a support frame for the whole machine, and a hydraulic press 2 fixedly connected to the top of the press 1. The hydraulic press 2 serves as the main power source for providing vertically downward high-pressure molding force. The output end of the hydraulic press 2 is fixedly connected to an upper mold 3 via a flange. The upper mold 3 is used for pressing and molding the sheet. A base 4 is fixedly connected to the bottom inner wall of the press 1 via bolts. The base 4 serves as a bearing platform for installing molds and auxiliary mechanisms. A lower mold 5 is fixedly connected to the top of the base 4. The position of the lower mold 5 corresponds vertically to the position of the upper mold 3. The two cooperate to form a molding cavity.

[0029] To ensure the verticality and stability of the upper mold 3 during the pressing process, slide rails 7 are vertically fixed to both sides of the inner wall of the press machine 1 by bolts. Slider blocks are provided on both sides of the upper mold 3 and are slidably connected to the surface of the slide rails 7. The slide rails 7 restrict the upper mold 3 to move only in the vertical direction. A touch screen control panel 9 is embedded in the front outer wall of the press machine 1. The control panel 9 integrates a control circuit board, which is electrically connected to the hydraulic press 2, the first electric push rod 601 and the second electric push rod 802 mentioned later, respectively, for centralized control of the orderly operation of each component.

[0030] To achieve automatic pressing and anti-wrinkle function after sheet laying, the device has a set of fixing components 6 arranged circumferentially around the edge of the lower mold 5. The fixing components 6 serve as a linkage mechanical actuator, including a drive component installed on the power end and a pressing component installed on the execution end. Specifically, the first electric push rod 601 is fixedly installed on the internal structural frame of the press machine 1, and its output end is coaxially rotatably connected to a rotating rod 602. The rotating rod 602 passes through and slides inside the through hole opened in the center of the fixed seat 604. The fixed seat 604 is secured by bolts. The rotating rod 602 is firmly installed on the top of the base 4. The side wall of the rotating rod 602 is provided with a groove 605 with a specific guide trajectory. The groove 605 is spirally constructed and is opened on the circumferential surface of the rotating rod 602. In accordance with the spiral trajectory, a sliding rod 606 made of hard metal is fixedly embedded in the inner wall of the fixed base 604. The end of the sliding rod 606 extends into and slides in the groove 605. Through the mechanical limiting cooperation between the sliding rod 606 and the spiral groove 605, the simple axial linear motion of the rotating rod 602 is transformed into a composite motion of rotation and lifting.

[0031] At the end of the process, a fixed plate 607 is vertically fixed to the top of the rotating rod 602 by welding or bolts. A pressure rod 608 is vertically fixed to the bottom edge of the fixed plate 607. The pressure rod 608 rotates with the rotating rod 602 and screws into the area above the lower mold 5 and presses down to contact the edge of the sheet. In order to ensure smooth resetting of the action and provide flexible buffer, a spiral first spring 603 is sleeved on the outer wall of the rotating rod 602 below the fixed seat 604. One end of the first spring 603 is fixedly connected to the bottom plane of the fixed seat 604, and the other end is fixedly connected to the protrusion on the side wall of the rotating rod 602 or the limiting ring. The elastic potential energy of the first spring 603 is used to assist the rotating rod 602 to return to its original position.

[0032] To address the issue of SMC products adhering to the lower mold 5 after molding and being difficult to remove, a cavity 801 is provided inside the base 4 to accommodate the mechanical mechanism. An ejector assembly 8 is located inside the cavity 801. Figure 3 and Figure 5As shown, the ejection assembly 8 converts the horizontal driving force into a vertical ejection force through a wedge-shaped force amplification mechanism. Specifically, it includes a bracket 803 that is fixedly connected to the inner wall of the cavity 801 by bolts. A second electric push rod 802 that provides horizontal power is fixedly installed on the side wall of the bracket 803. A guide rail 805 is horizontally fixedly connected to the inner wall of the bottom of the bracket 803. A slider 804 is slidably connected to the surface of the guide rail 805. The output end of the second electric push rod 802 is fixedly connected to the side wall of the slider 804 and is used to drive the slider 804 to reciprocate in the horizontal direction. The upper surface of the slider 804 is constructed as an inclined slope or an inclined cam profile with a fixed slope, which serves as the power input slope for ejection.

[0033] In the vertical direction, a sliding rod 806 is vertically slidably connected inside the bracket 803. The bottom end of the sliding rod 806 is rotatably connected to a wear-resistant roller 808 via a pin. The outer circumferential surface of the roller 808 always abuts against the inclined slope surface at the top of the slider 804, converting sliding friction into rolling friction to reduce resistance. The top end of the sliding rod 806 passes through the top of the base 4 and is fixedly connected to a top plate 809 located inside the lower mold 5. The lower mold 5 has a cavity or ejection groove that matches the shape of the top plate 809. The top plate 809 is slidably sealed to the bottom of the cavity. In the non-ejection state, the upper surface of the top plate 809 is flush with the bottom surface of the cavity of the lower mold 5 to ensure the integrity of the molding surface. To achieve automatic reset after ejection, a second spring 807 is sleeved on the outer wall of the sliding rod 806. One end of the second spring 807 is fixedly connected to the side wall limit of the sliding rod 806, and the other end is fixedly connected to the inner wall of the bracket 803. The sliding rod 806 is forced to maintain a downward movement tendency by the tension or pressure of the second spring 807.

[0034] The design challenge of the fixing component 6 lies in how to switch between the two actions of avoidance and clamping within a limited space. To this end, the fixing component 6 adopts a spiral guide drive structure. The rotating rod 602 is the core component for motion transmission. Its cylindrical sidewall is precisely machined with a spiral groove 605. This groove 605 is not a simple straight groove, but a trajectory groove with a specific spiral helix angle, which is used to guide the rotating rod 602 to generate a rotational action while moving axially.

[0035] In conjunction with the groove 605, the fixed seat 604 not only supports the rotating rod 602, but also has a protruding slide rod 606 rigidly fixedly connected to its inner wall. The end dimension of the slide rod 606 is precisely matched with the groove width of the groove 605 and embedded therein, forming a forced guiding fit. When the first electric push rod 601 drives the rotating rod 602 to move downward, since the position of the slide rod 606 is fixed, the rotating rod 602 is forced to move along the spiral trajectory of the groove 605, thereby rotating clockwise or counterclockwise while descending. This rotational action drives the top pressure rod 608 to rotate from the outer area of ​​the lower mold 5 to directly above the edge of the cavity of the lower mold 5, and finally presses the edge of the sheet at the end of the vertical stroke, effectively preventing the sheet from shifting and wrinkling before mold closing.

[0036] Meanwhile, in order to ensure the reliability of the mechanism reset, a first spring 603 is connected between the rotating rod 602 and the fixed seat 604. The first spring 603 is in a pre-compressed or pre-stretched state. When the first electric push rod 601 removes the external force or moves in the opposite direction, the first spring 603 releases elastic potential energy to help overcome the frictional resistance between the rotating rod 602 and the sealing ring and the sliding rod 606, ensuring that the pressure rod 608 can be quickly rotated out and lifted to avoid the part removal space. This motion trajectory cleverly solves the contradiction between pressure plate interference and limited operating space.

[0037] The ejection assembly 8 adopts the wedge block force amplification principle to cope with the large initial demolding force of SMC products. The slider 804, as a horizontal moving part, is slidably fitted on the horizontal guide rail 805 at the bottom of the bracket 803. The upper surface of the slider 804 is processed into an inclined slope with a certain slope. This slope serves as a cam drive surface to convert the horizontal thrust output by the second electric push rod 802 into a vertically upward lifting force.

[0038] Correspondingly, the sliding rod 806, which is responsible for directly ejecting the product, is vertically constrained in the guide hole of the bracket 803 and can only move in a straight line up and down. A rotatable roller 808 is installed at the bottom of the sliding rod 806. The roller 808 is always pressed on the inclined slope of the slider 804. When the second electric push rod 802 pushes the slider 804 to move towards the sliding rod 806, as the slope height gradually increases, the roller 808 is passively lifted, which in turn pushes the sliding rod 806 and the top plate 809 at the top to move upward, forcefully ejecting the product that is attached to the lower mold 5. Compared with direct vertical ejection, this wedge structure has a significant force amplification effect, which can achieve large-tonnage ejection with a smaller push rod, and the operation is smooth and without impact.

[0039] In a preferred embodiment, in order to achieve automatic reset after ejection and eliminate mechanism gaps, a second spring 807 is also sleeved on the outer wall of the sliding rod 806 in the ejection assembly 8. The second spring 807 serves as a reset energy storage element. One end of the second spring 807 is fixedly connected to the retaining ring or boss provided on the side wall of the sliding rod 806, and the other end is fixedly connected to the top surface of the inner wall of the bracket 803. When the ejection action occurs, the second spring 807 is stretched or compressed to accumulate elastic force. When the slider 804 is reset, the second spring 807 releases the elastic force, forcing the sliding rod 806 and the top plate 809 to quickly move down to their original positions, ensuring the flatness of the bottom of the cavity of the lower mold 5 and preventing flash from occurring during the next injection.

[0040] In a preferred embodiment, to ensure the smooth movement of the rotating rod 602 and provide flexible buffer protection, a first spring 603 is sleeved on the outer wall area of ​​the rotating rod 602 located below the fixed base 604 in the fixing assembly 6. One end of the first spring 603 abuts against or is fixedly connected to the bottom end face of the fixed base 604, and the other end is fixedly connected to the side wall of the rotating rod 602 through a washer or a snap ring. During the downward rotation of the rotating rod 602, the first spring 603 is compressed and generates a reverse elastic force. This design can not only eliminate the fit gap between the threaded pair or the guide groove pair, but also provide a certain flexible buffer when the pressure rod 608 presses the sheet, preventing rigid impact from damaging the sheet or the mechanism itself.

[0041] In a preferred embodiment, in order to improve the accuracy and reliability of the fixed component 6, the groove 605 on the side wall of the rotating rod 602 adopts a spiral structure with variable pitch or constant pitch. Its helix angle is precisely calculated to ensure that the linear stroke of the first electric push rod 601 can accurately correspond to the rotation angle and vertical pressing stroke required by the pressure rod 608. When the first electric push rod 601 drives the rotating rod 602 to extend or retract, the slide rod 606 slides relative to the groove 605, forcibly driving the rotating rod 602 to rotate and press down along a predetermined trajectory, thereby driving the pressure rod 608 to complete the precise switching from the avoidance position to the working position.

[0042] As a preferred embodiment, in order to ensure high-precision guidance of the upper mold 3 during the mold closing process and avoid mold misalignment, precision-machined slide rails 7 are symmetrically fixedly connected to the left and right sides of the inner wall of the press machine 1. The slide rails 7 are preferably rectangular or cylindrical guide rails. The two side walls of the upper mold 3 are respectively provided with sliders or guide sleeves that cooperate with the slide rails 7 and are slidably connected to the surface of the slide rails 7. Through the constraint of the two side slide rails 7, the upper mold 3 can only rise and fall smoothly in the vertical direction under the drive of the hydraulic press 2, which effectively ensures the dimensional accuracy of the molded product.

[0043] As a preferred embodiment, in order to realize intelligent operation and centralized control of the whole machine, a control screen 9 is embedded and fixedly installed at a height position on the front outer wall of the press 1 for easy operation. The control screen 9 is electrically connected to the main controller of the hydraulic press 2, the drive motor of the first electric push rod 601 and the drive motor of the second electric push rod 802 through internal wiring harnesses. The operator can set the action sequence, pressure parameters and stroke parameters of each actuator through the touch control screen 9 to realize one-button automated production.

[0044] As a preferred embodiment, in order to ensure the integrity and sealing of the cavity of the lower mold 5 after ejection, the bottom surface of the lower mold 5 is provided with a cavity or countersunk hole that precisely matches the shape and size of the top plate 809. The top plate 809 is slidably sealed to the bottom of the cavity, and the thickness design of the top plate 809 ensures that its upper surface is strictly flush with the inner bottom surface of the cavity of the lower mold 5 in the reset state, forming a smooth and continuous molding surface, preventing SMC liquid from seeping into the gap of the ejection mechanism and causing jamming or marks on the surface of the product;

[0045] In a preferred embodiment, in order to maximize the clamping torque of the pressure rod 608 and adapt to sheets of different thicknesses, the fixing plate 607 is horizontally and vertically fixed to the top end face of the rotating rod 602, while the pressure rod 608 is vertically fixed to the bottom edge of the fixing plate 607 away from the center of rotation, forming a cantilever beam structure. The bottom end face of the pressure rod 608 may be provided with a rubber pad or knurled texture to increase the friction with the sheet and prevent slippage during clamping.

[0046] Working principle: When performing SMC sheet pressing and molding, the operator first lays the pre-cut SMC sheet flat in the lower mold 5 located at the top of the base 4, at which time the upper mold 3 is in the high-open position. To prevent the sheet from shifting or wrinkling at the edges during the subsequent mold closing process, the operator issues a fixing command through the touch control screen 9 on the side wall of the press machine 1, and the system then activates the fixing component 6;

[0047] When the fixing action begins, the first electric push rod 601 inside the press machine 1 is energized and retracts, driving the rotating rod 602 connected to its output end to move downward. Since the rotating rod 602 has a spiral groove 605 on its side wall, and the sliding rod 606 fixed on the stationary fixed seat 604 is slidably fitted inside the groove 605, under the forced guidance of the sliding rod 606, the rotating rod 602 cannot descend directly vertically, but descends while rotating along the spiral trajectory. This compound motion causes the fixing plate 607 and the pressure rod 608 at the top of the rotating rod 602 to rotate, so that the pressure rod 608 is screwed from the outside of the mold into the cavity above the lower mold 5, and vertically pressed against the edge of the sheet at the end of the stroke to achieve reliable fixing. During this process, the first spring 603 is compressed and stored energy to provide auxiliary force for subsequent reset and eliminate gaps.

[0048] After the sheet is fixed, the main hydraulic press 2 starts and drives the upper mold 3 to press down vertically and smoothly along the two side slide rails 7. The upper mold 3 and the lower mold 5 close, and apply the set high temperature and high pressure to the SMC sheet in the mold cavity, so that it flows, cross-links and finally solidifies in the mold. After pressing, the hydraulic press 2 drives the upper mold 3 to rise and reset. At the same time, the first electric push rod 601 of the fixing component 6 extends in the opposite direction. With the cooperation of the first spring 603 and the slide rod 606, the pressure rod 608 is rotated out and lifted to avoid the part removal area.

[0049] Subsequently, in response to the problem of molded products easily sticking to the mold, the system automatically activates the ejection assembly 8. The second electric push rod 802 pushes the inclined slider 804 to move horizontally on the guide rail 805. As the slider 804 moves horizontally, the roller 808, which is always against its inclined slope, is gradually lifted up, thereby pushing the vertical sliding rod 806 and the top plate 809 to move upward. The top plate 809 is used to forcefully eject the SMC product that is stuck in the lower mold 5 and demold it. After the ejection is completed, the second electric push rod 802 retracts. Under the action of the rebound force of the second spring 807 and gravity, the sliding rod 806 drives the top plate 809 to quickly fall back to the initial position inside the lower mold 5, waiting for the next cycle.

Claims

1. A high-strength SMC sheet pressing and molding device, comprising a press (1), a hydraulic press (2), an upper mold (3), a base (4) and a lower mold (5), wherein the top of the press (1) is fixed with the hydraulic press (2), the output end of the hydraulic press (2) is connected to the upper mold (3), the bottom of the press (1) is fixed with the base (4), and the top of the base (4) is provided with the lower mold (5); Its features are, It also includes a fixing component (6) and an ejection component (8); The fixing assembly (6) includes a first electric push rod (601), a rotating rod (602), and a fixing seat (604). The first electric push rod (601) is installed inside the press (1). The output end of the first electric push rod (601) is connected to the rotating rod (602). The fixing seat (604) is fixed to the top of the base (4). The rotating rod (602) passes through the fixing seat (604). The side wall of the rotating rod (602) has a groove (605). The fixing seat (604) is fixed with a sliding rod (606). The sliding rod (606) is slidably fitted inside the groove (605). The top of the rotating rod (602) is fixed with a fixing plate (607). The bottom of the fixing plate (607) is fixed with a pressure rod (608). The ejector assembly (8) is disposed in the cavity (801) opened in the base (4). The ejector assembly (8) includes a bracket (803), a second electric push rod (802), a slider (804), and a sliding rod (806). The bracket (803) is fixed to the inner wall of the cavity (801). The second electric push rod (802) is installed on the side wall of the bracket (803). A guide rail (805) is fixed at the bottom of the bracket (803). The output end of the second electric push rod (802) A connecting slider (804) is slidably fitted to a guide rail (805). The upper surface of the slider (804) is constructed as an inclined cam profile. The sliding rod (806) is vertically slidably connected to the inside of the bracket (803). A roller (808) is rotatably connected to the bottom end of the sliding rod (806). The roller (808) abuts against the upper surface of the slider (804). A top plate (809) located inside the lower mold (5) is fixed at the top end of the sliding rod (806).

2. The high-strength SMC sheet pressing and molding apparatus according to claim 1, characterized in that: The rotating rod (602) is fitted with a first spring (603) on its side wall. One end of the first spring (603) is fixedly connected to the bottom of the fixed base (604), and the other end of the first spring (603) is fixedly connected to the side wall of the rotating rod (602).

3. The high-strength SMC sheet pressing and molding apparatus according to claim 1, characterized in that: The outer wall of the sliding rod (806) is fitted with a second spring (807). One end of the second spring (807) is fixedly connected to the side wall of the sliding rod (806), and the other end of the second spring (807) is fixedly connected to the side wall of the bracket (803).

4. The high-strength SMC sheet pressing and molding apparatus according to claim 1, characterized in that: The groove (605) has a spiral structure. The first electric push rod (601) drives the rotating rod (602) to extend and retract. At the same time, the sliding rod (606) cooperates with the groove (605) to drive the rotating rod (602) to rotate. The pressure rod (608) rotates with the rotating rod (602) and fixes the sheet.

5. The high-strength SMC sheet pressing and molding apparatus according to claim 1, characterized in that: The inner walls of the press (1) are fixedly connected to slide rails (7), and the two side walls of the upper mold (3) are slidably connected to the surface of the slide rails (7).

6. The high-strength SMC sheet pressing and molding apparatus according to claim 1, characterized in that: The press (1) has a control panel (9) fixedly installed on its side wall. The control panel (9) is electrically connected to the hydraulic press (2), the first electric push rod (601) and the second electric push rod (802).

7. The high-strength SMC sheet pressing and molding apparatus according to claim 1, characterized in that: The lower mold (5) has a cavity that matches the top plate (809). The top plate (809) is slidably and sealed at the bottom of the cavity, and the upper surface of the top plate (809) is flush with the upper surface of the lower mold (5).

8. The high-strength SMC sheet pressing and molding apparatus according to claim 1, characterized in that: The fixing plate (607) is vertically fixed to the top of the rotating rod (602), and the pressure rod (608) is vertically fixed to the bottom edge of the fixing plate (607).

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