A molding apparatus and process for lining a mold

Abstract

The application discloses a forming equipment and process of an inner lining mold, and belongs to the technical field of inner lining mold production. The equipment comprises a lower mold, a middle mold, an upper mold, a base, a displacement mechanism, a connecting mechanism and a pushing mechanism. The forming equipment of the inner lining mold drives the mold to move to a heating station for heating and solidification, and then moves to a demolding station, and automatic separation of the mold is realized by using a guide rail and gear transmission. The pushing mechanism pushes the formed inner lining mold out of the middle mold, and automatic demolding is completed. The application realizes full-automatic operation of the inner lining mold from mold closing, glue injection and heating to demolding, significantly improves production efficiency and product quality, and is suitable for industrialized batch production.

Description

Technical Field

[0001] This invention relates to the field of lining mold production technology, specifically to a molding equipment and process for an lining mold. Background Technology

[0002] Ceramic tableware is typically produced using inorganic non-metallic minerals such as clay, feldspar, and quartz as raw materials, through traditional processes including batching, crushing, molding, and sintering. With technological advancements, isostatic pressing (OSP) is becoming increasingly popular for ceramic products with complex shapes and high precision requirements. OSP utilizes a fluid medium (such as liquid or gas) to apply uniform pressure in all directions to ceramic powder encapsulated in a flexible mold (usually a rubber-lined mold), densifying the powder particles to form a uniform, high-density green body. Green bodies formed using this method have advantages such as uniform density, fewer defects, and high strength, making them particularly suitable for manufacturing symmetrical or structurally complex ceramic tableware such as plates and bowls.

[0003] In the aforementioned isostatic pressing process, the rubber-sleeved inner liner mold is a key tooling element. It is typically formed by injecting liquid polyurethane (such as castable polyurethane elastomer) into a specific composite mold and then curing it by heating. The performance (such as elasticity, strength, and durability) and dimensional accuracy of this type of inner liner mold directly affect the quality of the subsequent ceramic powder compact.

[0004] However, existing liner molding processes typically involve molds composed of three separable parts: an upper mold, a middle mold, and a lower mold. After injection molding, these three parts must be manually separated, and the molded liner sleeve must be removed from the middle mold. This process is cumbersome and inefficient. Manually separating the mold and removing the finished product is not only labor-intensive but also carries the risk of damaging the finished product or the mold due to improper operation, making it difficult to meet the needs of industrialized mass production. Therefore, there is an urgent need in this field for an liner molding equipment and supporting process that can automatically close, demold, and remove parts, thereby improving production efficiency, ensuring product consistency, and reducing labor costs. Summary of the Invention

[0005] The purpose of this invention is to provide a molding equipment and process for an inner lining mold in order to solve the technical problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a molding device for an inner lining mold, comprising a lower mold, a middle mold, an upper mold, and a base. The upper mold has an injection hole at its top, the middle mold has an vent hole on its inner wall, positioning rods are symmetrically fixedly connected to both sides of the lower mold, positioning holes for the positioning rods to be inserted are provided on the outer walls of the middle mold and the upper mold, a support base is fixedly connected to the top of the base, a hydraulic cylinder is installed at the top of the support base, a movable plate is connected to the output end of the hydraulic cylinder, an upper heating plate is installed at the bottom of the movable plate, a lower heating plate is installed at the top of the base, and the lower mold, middle mold, and upper mold are displaced by a displacement mechanism.

[0007] As a further embodiment of the present invention: the displacement mechanism includes a mounting base, which is fixedly connected to one end of the base. A first motor is mounted on one end of the mounting base, and a first threaded rod is connected to the output end of the first motor. A movable frame is slidably connected inside the mounting base, and the first threaded rod passes through the movable frame. Side plates are symmetrically fixedly connected to both sides of the movable frame. A fixed frame is fixedly connected to the outer wall of the side plate. A first lifting frame and a second lifting frame are slidably connected to the outer wall of the side plate on one side of the fixed frame. The fixed frame, the first lifting frame, and the second lifting frame are fixedly connected to the lower mold, the middle mold, and the upper mold through a connecting mechanism. A fixed plate is fixedly connected to one end of the fixed frame. A guide rod is fixedly connected to one end of the first lifting frame. A spur gear is rotatably connected to the outer wall of the guide rod. A toothed plate is fixedly connected to one end of the second lifting frame. Guide rails are symmetrically fixedly connected to both sides of the mounting base. The guide rails are composed of a first transverse groove, an inclined groove, and a second transverse groove. The finished product is pushed out of the middle mold by a pushing mechanism.

[0008] As a further embodiment of the present invention: the connecting mechanism includes a connecting seat, which is symmetrically and fixedly connected to the outer walls of the lower mold, the middle mold and the upper mold. The outer wall of the connecting seat is provided with a connecting groove. The outer walls of the fixed frame, the first lifting frame and the second lifting frame are all fixedly connected with connecting rods. The outer wall of the connecting rod is rotatably connected with a rotating block. One end of the rotating block is fixedly connected with a first bevel gear. The interior of the connecting rod is rotatably connected to a second bevel gear located on the outer wall of the first bevel gear. One end of the second bevel gear is fixedly connected with a second threaded rod. The outer wall of the second threaded rod is slidably connected with a connecting frame. The connecting frame is slidably connected to the interior of the connecting rod and extends out of the connecting rod.

[0009] As a further embodiment of the present invention: the pushing mechanism includes a fixed base, the fixed base is fixedly connected to the top of the mounting base, the outer wall of the fixed base is provided with a displacement groove, the inner wall of the displacement groove is slidably connected with a displacement frame, the bottom end of the displacement frame is fixedly connected with a pushing plate, the top of the fixed base is equipped with a second motor, the output end of the second motor is connected with a third threaded rod, and the third threaded rod passes through the displacement frame.

[0010] As a further embodiment of the present invention: the outer wall of the movable frame is in contact with the inner wall of the mounting base, and the outer wall of the movable frame is provided with a first threaded hole, which matches the first threaded rod.

[0011] As a further embodiment of the present invention: the inner wall of the guide rail is in contact with the outer wall of the guide rod, the outer wall of the side plate is provided with a vertical groove for the first lifting frame and the second lifting frame to slide, the inner wall of the vertical groove is fixedly connected with a limiting rod, the limiting rod passes through the second lifting frame, the outer wall of the second lifting frame is provided with a limiting hole for the limiting rod to slide; the outer walls of the fixing plate and the toothed plate are both provided with toothed grooves, the toothed grooves meshing with the spur gear.

[0012] As a further embodiment of the present invention: the outer wall of one end of the connecting frame is in contact with the inner wall of the connecting groove, and the first bevel gear meshes with the second bevel gear.

[0013] As a further embodiment of the present invention: the outer wall of the connecting frame is provided with a second threaded hole, which matches the second threaded rod.

[0014] As a further embodiment of the present invention: the inner wall of the displacement groove is in contact with the outer wall of the displacement frame, the outer wall of the displacement frame is provided with a third threaded hole, and the third threaded rod is matched with the third threaded hole.

[0015] A molding process for an inner lining mold, the specific steps of which are as follows:

[0016] Step 1: Close the lower mold, middle mold and upper mold, and inject liquid polyurethane into the mold through the injection hole;

[0017] Step 2: Move the mold between the upper heating plate and the lower heating plate. The upper heating plate and the lower heating plate heat the mold, causing the liquid polyurethane inside the mold to solidify and form a mold.

[0018] Step 3: The mold is moved off the lower heating plate by the cooperation of the parts in the displacement mechanism, so that the lower mold, middle mold and upper mold are separated from each other;

[0019] Step 4: By pushing the parts inside the mechanism together, the finished product is pushed out of the middle mold and onto the lower mold, where it can be picked up directly.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. Automated demolding and easy operation: The entire mold is moved by the displacement mechanism, and the automatic separation of the middle mold and the lower mold, and the upper mold and the middle mold is achieved by the cooperation of the guide rail and the guide rod. No manual intervention is required, which significantly improves the demolding efficiency.

[0022] 2. Reasonable structure and precise positioning: The combination of positioning rod and positioning hole ensures accurate alignment of each mold component when the mold is closed; the connecting mechanism adopts bevel gear and threaded rod transmission to realize reliable connection and quick disassembly of the mold and the lifting frame.

[0023] 3. Promoting demolding and providing good protection for finished products: After the molds separate, the pushing mechanism can smoothly push the finished products out of the middle mold and onto the lower mold, avoiding damage to the finished products during demolding and improving the product qualification rate.

[0024] 4. Uniform heating and high molding quality: The upper and lower heating plates, together with the hydraulic cylinder, realize the mold closing heating, ensuring that the liquid polyurethane is heated evenly and cured fully, thus improving the molding quality of the inner lining mold. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the molding equipment for the inner lining mold described in this invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the lower mold, middle mold, and upper mold of the molding equipment for the inner lining mold described in this invention;

[0027] Figure 3 This is a schematic diagram of the base of the molding equipment for the inner lining mold described in this invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the mounting base of the molding equipment for the inner lining mold described in this invention;

[0029] Figure 5 This is a schematic diagram of the movable frame of the molding equipment for the inner lining mold described in this invention;

[0030] Figure 6 This is a schematic diagram of the side plate of the molding equipment for the inner lining mold of the present invention;

[0031] Figure 7 This is a schematic diagram of the guide rail structure of the molding equipment for the inner lining mold described in this invention;

[0032] Figure 8This is a schematic diagram of the structure of the fixing frame, the first lifting frame, and the second lifting frame of the molding equipment for the inner lining mold of the present invention;

[0033] Figure 9 This is a schematic diagram of the internal structure of the connecting rod of the molding equipment for the inner lining mold described in this invention;

[0034] Figure 10 This is a schematic diagram of the internal structure of the fixing seat of the molding equipment for the inner lining mold described in this invention.

[0035] In the diagram: 1. Lower mold; 2. Middle mold; 3. Upper mold; 4. Injection hole; 5. Vent hole; 6. Displacement mechanism; 601. Mounting base; 602. First motor; 603. First threaded rod; 604. Movable frame; 605. Side plate; 606. Fixed frame; 607. First lifting frame; 608. Second lifting frame; 609. Fixed plate; 610. Guide rod; 611. Spur gear; 612. Gear plate; 613. Guide rail; 6131. ​​First transverse groove; 6132. Inclined groove; 6133. Second transverse groove; 7. Connecting mechanism; 701. Connecting base; 70 2. Connecting groove; 703. Connecting rod; 704. Rotating block; 705. First bevel gear; 706. Second bevel gear; 707. Second threaded rod; 708. Connecting frame; 8. Pushing mechanism; 801. Fixed seat; 802. Displacement groove; 803. Displacement frame; 804. Push plate; 805. Second motor; 806. Third threaded rod; 9. Positioning rod; 10. Positioning hole; 11. Base; 12. Support seat; 13. Hydraulic cylinder; 14. Movable plate; 15. Upper heating plate; 16. Lower heating plate; 17. Vertical groove; 18. Limiting rod; 19. Inner liner mold. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0038] Please see Figures 1 to 10 In this embodiment of the invention, a molding device for an inner lining mold includes a lower mold 1, a middle mold 2, an upper mold 3, and a base 11. The lower mold 1, the middle mold 2, and the upper mold 3 form a molding cavity. The top of the upper mold 3 is provided with an injection hole 4, and the inner wall of the middle mold 2 is provided with an exhaust hole 5. Positioning rods 9 are symmetrically fixedly connected to both sides of the lower mold 1. Positioning holes 10 for the positioning rods 9 to be inserted are provided on the outer walls of the middle mold 2 and the upper mold 3. A support base 12 is fixedly connected to the top of the base 11. A hydraulic cylinder 13 is installed at the top of the support base 12. A movable plate 14 is connected to the output end of the hydraulic cylinder 13. An upper heating plate 15 is installed at the bottom end of the movable plate 14. A lower heating plate 16 is installed at the top of the base 11. The lower mold 1, the middle mold 2, and the upper mold 3 are displaced by a displacement mechanism 6.

[0039] The displacement mechanism 6 includes a mounting base 601, which is fixedly connected to one end of the base 11. A first motor 602 is mounted on one end of the mounting base 601, and a first threaded rod 603 is connected to the output end of the first motor 602. A movable frame 604 is slidably connected inside the mounting base 601, and the first threaded rod 603 passes through the movable frame 604. Side plates 605 are symmetrically fixedly connected to both sides of the movable frame 604, and a fixed frame 606 is fixedly connected to the outer wall of the side plates 605. A first lifting frame 607 and a second lifting frame 608 are slidably connected to the outer wall of the side plates 605 on one side of the fixed frame 606. The fixed frame 606... The first lifting frame 607 and the second lifting frame 608 are fixedly connected to the lower mold 1, the middle mold 2 and the upper mold 3 through the connecting mechanism 7. A fixing plate 609 is fixedly connected to one end of the fixing frame 606. A guide rod 610 is fixedly connected to one end of the first lifting frame 607. A spur gear 611 is rotatably connected to the outer wall of the guide rod 610. A toothed plate 612 is fixedly connected to one end of the second lifting frame 608. Guide rails 613 are symmetrically fixedly connected to both sides of the mounting base 601. The guide rails 613 are composed of a first transverse groove 6131, an inclined groove 6132 and a second transverse groove 6133. The finished product is pushed out of the middle mold 2 by the pushing mechanism 8.

[0040] In this embodiment: the lower mold 1, the middle mold 2 and the upper mold 3 are closed. The positioning rod 9 is inserted into the positioning hole 10 to position the lower mold 1, the middle mold 2 and the upper mold 3. Through the cooperation of the parts in the connecting mechanism 7, the lower mold 1, the middle mold 2 and the upper mold 3 are fixed on the fixing plate 609, the first lifting frame 607 and the second lifting frame 608 respectively. At this time, the guide rod 610 is in the first transverse groove 6131, and liquid polyurethane is injected into the mold through the injection hole 4. The liquid polyurethane fills the molding cavity. The vent hole 5 removes air during the injection process.

[0041] The first motor 602 is started, and its operation drives the first threaded rod 603 to rotate. The rotation of the first threaded rod 603 causes the movable frame 604 to move. The movable frame 604 slides within the mounting base 601. The movement of the movable frame 604 causes the side plate 605 to move. The movement of the side plate 605 causes the lower mold 1, the middle mold 2, and the upper mold 3 to move between the upper heating plate 15 and the lower heating plate 16. The hydraulic cylinder 13 operates, causing the movable plate 14 to move. The movement of the movable plate 14 causes the upper heating plate 15 to move. The upper heating plate 15 and the lower heating plate 16 come into contact with the mold, heating the mold and causing the liquid polyurethane inside the mold to solidify and form the inner lining mold 19.

[0042] After completion, the upper heating plate 15 moves away from the mold, and the movable frame 604 moves, causing the mold to move onto the mounting base 601 until the guide rod 610 slides along the first transverse groove 6131 to the inclined groove 6132. The guide rod 610 slides along the inclined groove 6132, causing the guide rod 610 to move upward relative to the side plate 605. The displacement of the guide rod 610 causes the first lifting frame 607 to move, so that the middle mold 2 moves upward relative to the lower mold 1. The displacement of the guide rod 610 causes the spur gear 611 to move along the outer wall of the fixed plate 609. The spur gear 611 rotates while moving, and the rotation of the spur gear 611 causes the toothed plate 612 to move. The toothed plate 612 moves relative to the spur gear 611, causing the second lifting frame 608 to move, so that the upper mold 3 moves upward relative to the middle mold 2, thereby separating the lower mold 1, the middle mold 2, and the upper mold 3 from each other.

[0043] The guide rod 610 slides along the inclined groove 6132 into the second transverse groove 6133. Then, through the cooperation of the parts in the pushing mechanism 8, the finished product is pushed out from the middle mold 2 and falls onto the lower mold 1, which can be directly picked up. This facilitates the automatic demolding operation after the inner lining rubber sleeve is formed.

[0044] Please refer to this carefully. Figures 8 to 9 The connecting mechanism 7 includes a connecting seat 701, which is symmetrically and fixedly connected to the outer walls of the lower mold 1, the middle mold 2, and the upper mold 3. The outer wall of the connecting seat 701 is provided with a connecting groove 702. The outer walls of the fixed frame 606, the first lifting frame 607, and the second lifting frame 608 are all fixedly connected with connecting rods 703. The outer wall of the connecting rod 703 is rotatably connected with a rotating block 704. One end of the rotating block 704 is fixedly connected with a first bevel gear 705. The inside of the connecting rod 703 is rotatably connected to the outer wall of the first bevel gear 705 with a second bevel gear 706. One end of the second bevel gear 706 is fixedly connected with a second threaded rod 707. The outer wall of the second threaded rod 707 is slidably connected with a connecting frame 708. The connecting frame 708 is slidably connected to the inside of the connecting rod 703 and extends out of the connecting rod 703.

[0045] In this embodiment: rotating the rotating block 704 causes the first bevel gear 705 to rotate, which in turn causes the second bevel gear 706 to rotate, which in turn causes the second threaded rod 707 to rotate, which in turn causes the connecting frame 708 to move, and the connecting frame 708 to engage in the connecting groove 702, thereby fixing the lower mold 1, the middle mold 2 and the upper mold 3 on the fixing plate 609, the first lifting frame 607 and the second lifting frame 608 respectively.

[0046] Please refer to this carefully. Figure 1 and Figure 10The pushing mechanism 8 includes a fixed base 801, which is fixedly connected to the top of the mounting base 601. The outer wall of the fixed base 801 is provided with a displacement groove 802. The inner wall of the displacement groove 802 is slidably connected to a displacement frame 803. The bottom end of the displacement frame 803 is fixedly connected to a push plate 804. The top of the fixed base 801 is equipped with a second motor 805. The output end of the second motor 805 is connected to a third threaded rod 806, which passes through the displacement frame 803.

[0047] In this embodiment: the guide rod 610 slides along the inclined groove 6132 into the second transverse groove 6133. The guide rod 610 slides along the second transverse groove 6133 until the displacement frame 803 and the push plate 804 move between the middle mold 2 and the upper mold 3. The second motor 805 is started. The second motor 805 drives the third threaded rod 806 to rotate. The rotation of the third threaded rod 806 drives the displacement frame 803 to move. The displacement frame 803 moves downward along the displacement groove 802. The displacement of the displacement frame 803 drives the push plate 804 to move. The push plate 804 contacts the finished product and pushes the finished product out of the middle mold 2 and onto the lower mold 1.

[0048] It should be noted that the final formed inner liner mold 19 has an upper convex edge and a lower convex edge structure, and the forming cavities of the upper convex edge and the lower convex edge structure are opened at the upper and lower ends of the middle mold 2. Therefore, when the lower mold 1, the middle mold 2 and the upper mold 3 are separated, the inner liner mold 19 will remain on the middle mold 2. Thus, when the displacement frame 803 and the push plate 804 of the pushing mechanism 8 move between the middle mold 2 and the upper mold 3, the displacement frame 803 can be moved down to push the inner liner mold 19 out of the middle mold 2 and onto the lower mold 1.

[0049] Please refer to this carefully. Figures 4 to 8 The outer wall of the movable frame 604 fits against the inner wall of the mounting base 601. The outer wall of the movable frame 604 is provided with a first threaded hole, which matches the first threaded rod 603.

[0050] In this embodiment: the first motor 602 drives the first threaded rod 603 to rotate, the rotation of the first threaded rod 603 drives the movable frame 604 to move, the movable frame 604 slides within the mounting base 601, and the displacement of the movable frame 604 drives the side plate 605 to move.

[0051] Please refer to this carefully. Figures 4 to 8 The inner wall of the guide rail 613 fits against the outer wall of the guide rod 610. The outer wall of the side plate 605 is provided with a vertical groove 17 for the first lifting frame 607 and the second lifting frame 608 to slide. The inner wall of the vertical groove 17 is fixedly connected with a limiting rod 18, which passes through the second lifting frame 608. The outer wall of the second lifting frame 608 is provided with a limiting hole for the limiting rod 18 to slide.

[0052] In this embodiment: the guide rod 610 can slide along the inner wall of the guide rail 613; the first lifting frame 607 and the second lifting frame 608 can slide along the vertical groove 17. At this time, the limiting rod 18 slides in the limiting hole to limit the movement direction of the first lifting frame 607 and the second lifting frame 608, so that the first lifting frame 607 and the second lifting frame 608 move vertically relative to the side plate 605.

[0053] Please refer to this carefully. Figures 4 to 8 The outer walls of the fixing plate 609 and the toothed plate 612 are provided with tooth grooves, which mesh with the spur gear 611.

[0054] In this embodiment: the guide rod 610 slides along the inclined groove 6132, causing the guide rod 610 to move upward relative to the side plate 605. The displacement of the guide rod 610 causes the first lifting frame 607 to move, so that the middle mold 2 moves upward relative to the lower mold 1. The displacement of the guide rod 610 causes the spur gear 611 to move along the outer wall of the fixed plate 609. The spur gear 611 rotates while moving. The rotation of the spur gear 611 causes the toothed plate 612 to move. The toothed plate 612 moves relative to the spur gear 611, causing the second lifting frame 608 to move, so that the upper mold 3 moves upward relative to the middle mold 2.

[0055] Please refer to this carefully. Figures 8 to 9 One end of the outer wall of the connecting frame 708 is in contact with the inner wall of the connecting groove 702. The first bevel gear 705 meshes with the second bevel gear 706. The outer wall of the connecting frame 708 is provided with a second threaded hole, which matches the second threaded rod 707.

[0056] In this embodiment: Rotating the rotating block 704 causes the first bevel gear 705 to rotate, which in turn causes the second bevel gear 706 to rotate, which in turn causes the second threaded rod 707 to rotate, which in turn causes the connecting frame 708 to move, and the connecting frame 708 moves and engages with the connecting groove 702.

[0057] Please refer to this carefully. Figure 1 and Figure 10 The inner wall of the displacement groove 802 fits against the outer wall of the displacement frame 803. The outer wall of the displacement frame 803 is provided with a third threaded hole, and the third threaded rod 806 matches the third threaded hole.

[0058] In this embodiment: the second motor 805 drives the third threaded rod 806 to rotate, the rotation of the third threaded rod 806 drives the displacement frame 803 to move, the displacement frame 803 moves downward along the displacement groove 802, and the displacement of the displacement frame 803 drives the push plate 804 to move.

[0059] A molding process for an inner lining mold, the specific steps of which are as follows:

[0060] Step 1: Close the lower mold 1, middle mold 2 and upper mold 3, and inject liquid polyurethane into the mold through the injection hole 4;

[0061] Step 2: Move the mold between the upper heating plate 15 and the lower heating plate 16. The upper heating plate 15 and the lower heating plate 16 heat the mold, causing the liquid polyurethane inside the mold to solidify and form.

[0062] Step 3: The mold is moved off the lower heating plate 16 by the cooperation of the parts in the displacement mechanism 6, so that the lower mold 1, the middle mold 2 and the upper mold 3 are separated from each other;

[0063] Step 4: By using the cooperation of the parts inside the pushing mechanism 8, the finished product is pushed out from the middle mold 2 and falls onto the lower mold 1, where it can be picked up directly.

[0064] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A molding device for an inner lining mold, characterized in that, The system includes a lower mold (1), a middle mold (2), an upper mold (3), and a base (11). The upper mold (3) has a glue injection hole (4) at its top. The middle mold (2) has an exhaust hole (5) on its inner wall. The lower mold (1) is symmetrically fixedly connected to two sides with positioning rods (9). The middle mold (2) and the upper mold (3) have positioning holes (10) for the positioning rods (9) to be inserted into their outer walls. The base (11) is fixedly connected to a support seat (12). The support seat (12) is equipped with a hydraulic cylinder (13) at its top. The output end of the hydraulic cylinder (13) is connected to a movable plate (14). The bottom end of the movable plate (14) is equipped with an upper heating plate (15). The top end of the base (11) is equipped with a lower heating plate (16). The lower mold (1), the middle mold (2), and the upper mold (3) are displaced by a displacement mechanism (6). The displacement mechanism (6) includes a mounting base (601), which is fixedly connected to one end of the base (11). A first motor (602) is mounted on one end of the mounting base (601), and a first threaded rod (603) is connected to the output end of the first motor (602). A movable frame (604) is slidably connected inside the mounting base (601), and the first threaded rod (603) passes through the movable frame (604). Side plates (605) are symmetrically fixedly connected to both sides of the movable frame (604), and a fixed frame (606) is fixedly connected to the outer wall of the side plate (605). A first lifting frame (607) and a second lifting frame (608) are slidably connected to the outer wall of the side plate (605) on one side of the fixed frame (606). (606), the first lifting frame (607) and the second lifting frame (608) are fixedly connected to the lower mold (1), the middle mold (2) and the upper mold (3) through the connecting mechanism (7). A fixed plate (609) is fixedly connected to one end of the fixed frame (606). A guide rod (610) is fixedly connected to one end of the first lifting frame (607). A spur gear (611) is rotatably connected to the outer wall of the guide rod (610). A toothed plate (612) is fixedly connected to one end of the second lifting frame (608). Guide rails (613) are symmetrically fixedly connected to both sides of the mounting base (601). The guide rails (613) are composed of a first transverse groove (6131), an inclined groove (6132) and a second transverse groove (6133). The finished product is pushed out of the middle mold (2) by the pushing mechanism (8). The connecting mechanism (7) includes a connecting seat (701), which is symmetrically and fixedly connected to the outer walls of the lower mold (1), the middle mold (2), and the upper mold (3). The outer wall of the connecting seat (701) is provided with a connecting groove (702). The outer walls of the fixing frame (606), the first lifting frame (607), and the second lifting frame (608) are all fixedly connected with connecting rods (703). The outer wall of the connecting rod (703) is rotatably connected with a rotating block (704). One end of the connecting rod (704) is fixedly connected to a first bevel gear (705). The interior of the connecting rod (703) is rotatably connected to a second bevel gear (706) located on the outer wall of the first bevel gear (705). One end of the second bevel gear (706) is fixedly connected to a second threaded rod (707). The outer wall of the second threaded rod (707) is slidably connected to a connecting frame (708). The connecting frame (708) is slidably connected to the interior of the connecting rod (703) and extends out of the connecting rod (703).

2. The molding equipment for an inner lining mold according to claim 1, characterized in that, The pushing mechanism (8) includes a fixed base (801), which is fixedly connected to the top of the mounting base (601). The outer wall of the fixed base (801) is provided with a displacement groove (802). The inner wall of the displacement groove (802) is slidably connected with a displacement frame (803). The bottom end of the displacement frame (803) is fixedly connected with a push plate (804). The top of the fixed base (801) is equipped with a second motor (805). The output end of the second motor (805) is connected with a third threaded rod (806). The third threaded rod (806) passes through the displacement frame (803).

3. The molding equipment for an inner lining mold according to claim 1, characterized in that, The outer wall of the movable frame (604) is in contact with the inner wall of the mounting base (601), and the outer wall of the movable frame (604) is provided with a first threaded hole, which matches the first threaded rod (603).

4. The molding equipment for an inner lining mold according to claim 1, characterized in that, The inner wall of the guide rail (613) is in contact with the outer wall of the guide rod (610). The outer wall of the side plate (605) is provided with a vertical groove (17) for the first lifting frame (607) and the second lifting frame (608) to slide. The inner wall of the vertical groove (17) is fixedly connected with a limiting rod (18). The limiting rod (18) passes through the second lifting frame (608). The outer wall of the second lifting frame (608) is provided with a limiting hole for the limiting rod (18) to slide. The outer walls of the fixing plate (609) and the toothed plate (612) are both provided with toothed grooves. The toothed grooves mesh with the spur gear (611).

5. The molding equipment for an inner lining mold according to claim 1, characterized in that, One end of the outer wall of the connecting frame (708) is in contact with the inner wall of the connecting groove (702), and the first bevel gear (705) meshes with the second bevel gear (706).

6. The molding equipment for an inner lining mold according to claim 1, characterized in that, The outer wall of the connecting frame (708) is provided with a second threaded hole, which matches the second threaded rod (707).

7. The molding equipment for an inner lining mold according to claim 2, characterized in that, The inner wall of the displacement groove (802) is in contact with the outer wall of the displacement frame (803), and the outer wall of the displacement frame (803) is provided with a third threaded hole, and the third threaded rod (806) is matched with the third threaded hole.

8. The molding process of the inner lining mold of the molding equipment according to any one of claims 1-7, characterized in that, The specific steps are as follows: Step 1: Perform mold closing operation on the lower mold (1), middle mold (2) and upper mold (3), and inject liquid polyurethane into the mold through the injection hole (4); Step 2: Move the mold between the upper heating plate (15) and the lower heating plate (16). The upper heating plate (15) and the lower heating plate (16) heat the mold, causing the liquid polyurethane inside the mold to solidify and form. Step 3: The mold is moved off the lower heating plate (16) by the cooperation of the parts in the displacement mechanism (6), so that the lower mold (1), the middle mold (2) and the upper mold (3) are separated from each other; Step 4: The finished product is pushed out of the middle mold (2) by the cooperation of the parts in the pushing mechanism (8) and falls onto the lower mold (1), where it can be picked up directly.

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