Polyurethane article demolding and transfer apparatus and method of use

Abstract

This invention discloses a polyurethane product demolding and material transfer device and its usage method, including a truss column, the bottom of which is fixed to the ground, and a truss beam installed at the top. A truss Z-axis capable of horizontal movement and vertical lifting is installed on the truss beam. A lifting mechanism is provided on one side of the truss column to lift the mold assembly on the conveyor. A demolding mechanism is installed at the bottom of the truss Z-axis, which drives the demolding mechanism to extend into the mold assembly and pull the casting material out of the mold assembly. This device enables integrated automated demolding and material transfer operations. Through the coordinated operation of the truss Z-axis, demolding mechanism, and lifting mechanism, manual intervention is reduced, significantly improving work efficiency and reducing labor intensity. Positioning is precise and demolding is smooth. With the help of a guide structure, a mold fixing structure, and a linked pulling arm, product damage and mold displacement are avoided, ensuring operational accuracy and equipment lifespan. It also combines stability and safety.

Description

Technical Field

[0001] This invention belongs to the technical field of demolding equipment, and specifically relates to a demolding and material transfer device for polyurethane products and its usage method. Background Technology

[0002] In polyurethane casting production, the vulcanization process is a crucial step that uses high-temperature baking to cure the polyurethane into its final form. After vulcanization, the molded polyurethane product must be demolded from the mold.

[0003] Because the polyurethane liquid completely fills the mold cavity during casting, negative pressure adsorption easily forms between the product and the mold during demolding due to the external atmospheric pressure, resulting in high demolding resistance and difficulty in separation. In conventional production, introducing compressed gas into the gap between the polyurethane molded part and the mold can effectively reduce the demolding force and ensure smooth demolding.

[0004] Under special working conditions, molds used for a long time are prone to defects such as local damage and gaps, which will cause polyurethane liquid to leak into the defect gaps and solidify. In addition, the good tensile properties of polyurethane material itself will greatly increase the difficulty of demolding. Even if compressed gas is introduced, normal demolding cannot be achieved. Summary of the Invention

[0005] The purpose of this invention is to provide a demolding and material transfer device and method for polyurethane products, so as to solve the problems existing in the demolding process of polyurethane product molded parts.

[0006] To solve the above-mentioned technical problems, the present invention provides a polyurethane product demolding and material transfer device, including a truss column, the bottom of which is fixed to the ground and the top of which is equipped with a truss beam, and the truss beam is equipped with a truss Z-axis that can move horizontally and move up and down.

[0007] A lifting mechanism is provided on one side of the truss column to lift the mold assembly on the conveyor;

[0008] A demolding mechanism is installed at the bottom of the Z-axis of the truss. The Z-axis of the truss drives the demolding mechanism to extend into the mold assembly and pull the casting material out of the mold assembly.

[0009] Preferably, the Z-axis of the truss includes a Z-axis transverse frame and a Z-axis lifting rod. The Z-axis transverse frame is connected to the transverse guide rail on the truss beam, so that the Z-axis transverse frame can move horizontally along the truss beam.

[0010] The Z-axis lifting rod is connected to the longitudinal guide rail inside the Z-axis transverse frame, enabling the Z-axis lifting rod to move up and down vertically.

[0011] Preferably, the demolding mechanism includes a lifting screw, a demolding motor, and a demolding assembly; the output shaft of the demolding motor is connected to a demolding gearbox via a demolding coupling, and the lifting screw moves up and down vertically under the drive of the demolding gearbox.

[0012] Preferably, a rectangular slider is installed at the tail end of the lifting screw, and the rectangular slider is located in a rectangular slide tube to guide the lifting screw to move up and down in the vertical direction.

[0013] Preferably, the demolding assembly is installed on the head of the lifting screw, and includes a fixed sleeve and a sliding sleeve. The fixed sleeve is fixedly installed on the head of the lifting screw, while the sliding sleeve is slidably installed on the lifting screw.

[0014] An extension arm and a pull arm are provided between the fixed sleeve and the sliding sleeve. One end of the extension arm is rotatably connected to the sliding sleeve via a pin, and the other end is rotatably connected to the middle of the pull arm via a pin. The end of the pull arm is rotatably connected to the fixed sleeve via a pin. When the sliding sleeve moves linearly along the lifting screw, the extension arm drives the pull arm to rotate around the end of the fixed sleeve, thereby switching between the extended state and the retracted state.

[0015] The demolding assembly also includes a demolding cylinder, the piston rod of which is connected to the sliding sleeve via a floating joint, thereby driving the sliding sleeve to move linearly along the lifting screw.

[0016] Preferably, the mold assembly includes a mold cylinder, a mold base plate, and a mold positioning cylinder. The mold cylinder is mounted on the mold base plate, and the mold positioning cylinder is sleeved inside the mold cylinder, thereby forming a polyurethane product between the mold cylinder and the mold positioning cylinder. The demolding component extends into the mold positioning cylinder, unfolds the pull-out arm, and pulls the casting material away from the mold assembly.

[0017] Preferably, a pressure mold frame is also provided on the Z-axis of the truss, which moves downward with the Z-axis of the truss and presses against the top of the mold positioning cylinder, thereby assisting the demolding component in pulling the casting body out of the mold assembly;

[0018] The mold cylinder is provided with a fixing ear on the outside. The mold positioning cylinder is fixed by inserting an external locking tongue into the fixing ear, thereby assisting the demolding component in pulling the casting body out of the mold assembly.

[0019] Preferably, the lifting mechanism includes a lifting base plate, a lifting rod, a lifting movable plate, and a heightening cylinder. The heightening cylinder is installed on the lifting movable plate. Under the action of the lifting rod, the lifting movable plate drives the heightening cylinder to rise and contact the mold base plate of the mold assembly, and lifts the mold assembly away from the conveyor.

[0020] The top of the lifting cylinder is provided with a guide post. When the lifting cylinder contacts the mold base plate, the guide post is embedded in the guide groove at the bottom of the mold base plate, so that the mold assembly is positioned and lifted.

[0021] Preferably, the lifting rod is equipped with a lifting power mechanism to drive the lifting rod to perform lifting and lowering movements. The lifting power mechanism includes a lifting motor, a lifting gearbox, and a lifting coupling. The lifting rod is a lead screw and meshes with the lifting gearbox. The output shaft of the lifting motor is connected to the lifting gearbox through the lifting coupling.

[0022] The lifting gearbox includes a gearbox, and a worm gear and a worm are provided inside the gearbox. The worm is connected to the lifting coupling, and the lifting rod is sleeved and engaged in the worm gear. Under the action of the lifting motor, the worm gear and worm structure drive the lifting rod to rise and fall in the vertical direction.

[0023] The present invention also provides a method for using a polyurethane product demolding and material transfer device, comprising the following steps:

[0024] Step A: First, the mold assembly is transported to the top of the lifting mechanism by the conveyor.

[0025] Step A1: Start the lifting motor, and the lifting rod will drive the lifting movable plate and the heightening cylinder to rise. When they come into contact with the mold base plate, the guide column will be embedded in the guide groove at the bottom of the mold base plate, so that the mold assembly is lifted away from the conveyor.

[0026] Step B: Next, the demolding mechanism moves downward under the action of the Z-axis of the truss;

[0027] Step B1: The Z-axis lifting rod moves down along the longitudinal guide rail, driving the demolding mechanism to descend until the pressure mold frame presses against the top of the mold positioning cylinder;

[0028] Step C: Then, under the action of the lifting screw, the demolding component descends and extends into the mold assembly;

[0029] Step C1: Under the action of the demolding motor, the demolding gearbox drives the lifting screw to move the demolding assembly downward and extend into the mold assembly;

[0030] Step D: Next, extend the pull-out arm;

[0031] Step D1: Under the action of the demolding cylinder, the sliding sleeve moves downward, and the extension arm drives the pull arm to rotate around the end of the fixed sleeve to achieve the unfolded state;

[0032] Step E: Then, pull apart the cast body;

[0033] Step E1: The demolding assembly rises under the action of the lifting screw, thereby pulling the casting body away from the mold assembly;

[0034] Step F: Finally, transfer and cast the material;

[0035] Step F1: The demolding mechanism, carrying the casting body, rises under the action of the Z-axis of the truss and moves horizontally along the transverse guide rail on the truss beam to realize material transfer.

[0036] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include:

[0037] 1. This invention uses a Z-axis driven demolding mechanism to achieve continuous horizontal movement, vertical lifting, and demolding pull-out actions. Combined with a lifting mechanism, it completes mold positioning and lifting, requiring minimal manual intervention, significantly improving work efficiency and reducing labor intensity. The demolding assembly, through the linkage of the extension arm and the pull-out arm, allows for flexible switching between unfolding and retraction, ensuring uniform pulling force and preventing damage to the casting. The cooperation between the pressure mold frame and the external locking tongue further secures the mold positioning cylinder, preventing mold displacement during demolding, ensuring demolding accuracy, and extending mold lifespan.

[0038] 2. The modular design of each mechanism in this invention (truss Z-axis, demolding mechanism, lifting mechanism) ensures reliable connection and convenient operation, and can be adapted to mold assemblies of different specifications, making it widely applicable; the lifting power mechanism adopts a worm gear structure, which provides smooth drive and sufficient lifting force, and can stably support the mold assembly to detach from the conveyor. Attached Figure Description

[0039] Figure 1 A schematic diagram of the overall structure of the polyurethane product demolding and material transfer device provided by the present invention;

[0040] Figure 2 This is a schematic diagram of the upper limit position of the Z-axis of the truss provided by the present invention;

[0041] Figure 3 This is a schematic diagram of the lower limit of the Z-axis of the truss provided by the present invention;

[0042] Figure 4 This is a schematic diagram of the demolding mechanism provided by the present invention;

[0043] Figure 5 This is a schematic diagram of the demolding component in the demolding mechanism provided by the present invention in the retracted state.

[0044] Figure 6 This is a schematic diagram of the unfolded state of the demolding component in the demolding mechanism provided by the present invention;

[0045] Figure 7 This is a schematic diagram showing the positions of the demolding mechanism and the mold assembly provided by the present invention;

[0046] Figure 8 Locking diagram of the external locking tongue provided by the present invention;

[0047] Figure 9 This is a schematic diagram of the lower limit position of the lifting mechanism provided by the present invention;

[0048] Figure 10 A schematic diagram of the upper limit position of the lifting mechanism provided by the present invention;

[0049] Figure 11 This is a schematic diagram of the lifting gearbox provided by the present invention;

[0050] Figure 12 This is a schematic diagram of the downward process of the polyurethane product demolding and material transfer equipment provided by the present invention;

[0051] Figure 13 A schematic diagram illustrating the unfolding process of the polyurethane product demolding and material transfer equipment provided by the present invention;

[0052] Figure 14 A schematic diagram of the rising process of the polyurethane product demolding and material transfer equipment provided by the present invention.

[0053] The meanings of the markings in the attached diagram are as follows:

[0054] In the diagram: 10. Mold assembly; 101. Mold cylinder; 102. Mold base plate; 103. Mold positioning cylinder; 104. Fixing lug; 105. Guide groove; 100. Casting body; 1. Truss column; 2. Truss beam; 3. Truss Z-axis; 31. Z-axis transverse frame; 32. Z-axis lifting rod; 4. Lifting mechanism; 41. Lifting base plate; 42. Lifting rod; 43. Lifting movable plate; 44. Heightening cylinder; 441. Guide column; 45. Lifting motor; 46. Lifting gear. 461. Gearbox; 462. Worm gear; 463. Worm; 47. Lifting coupling; 5. Demolding mechanism; 51. Lifting screw; 52. Demolding motor; 53. Demolding assembly; 531. Fixed sleeve; 532. Sliding sleeve; 533. Extending support arm; 534. Pulling support arm; 535. Demolding cylinder; 536. Floating joint; 54. Demolding coupling; 55. Demolding gearbox; 56. Rectangular slider; 57. Rectangular slide cylinder; 6. Press mold frame; 7. External locking tongue. Detailed Implementation

[0055] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0056] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this invention.

[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0058] Example

[0059] This invention provides a demolding and material transfer device for polyurethane products. Please refer to [link / reference]. Figure 1 It includes a truss column 1, the bottom of which is fixed to the ground and the top of which is a truss beam 2. A truss Z-axis 3 capable of horizontal movement and vertical lifting is installed on the truss beam 2. A lifting mechanism 4 is provided on one side of the truss column 1 to lift the mold assembly 10 on the conveyor. A demolding mechanism 5 is installed at the bottom of the truss Z-axis 3. The truss Z-axis 3 drives the demolding mechanism 5 to extend into the mold assembly 10 and pull the casting body 100 out of the mold assembly 10.

[0060] For details, please refer to Figure 2 and Figure 3 The truss Z-axis 3 includes a Z-axis transverse frame 31 and a Z-axis lifting rod 32. The Z-axis transverse frame 31 is connected to the transverse guide rail on the truss beam 2, so that the Z-axis transverse frame 31 can move horizontally along the truss beam 2. The Z-axis lifting rod 32 is connected to the longitudinal guide rail inside the Z-axis transverse frame 31, so that the Z-axis lifting rod 32 can move up and down in the vertical direction.

[0061] For further details, please refer to Figure 4-6 The demolding mechanism 5 includes a lifting screw 51, a demolding motor 52, and a demolding assembly 53; the output shaft of the demolding motor 52 is connected to the demolding gearbox 55 via a demolding coupling 54, and the lifting screw 51 moves up and down in the vertical direction under the drive of the demolding gearbox 55.

[0062] The lifting screw 51 is equipped with a rectangular slider 56 at its tail end, and the rectangular slider 56 is located in the rectangular slide cylinder 57 to guide the lifting screw 51 to rise and fall in the vertical direction.

[0063] In this embodiment, the demolding assembly 53 is installed on the head of the lifting screw 51, and includes a fixed sleeve 531 and a sliding sleeve 532. The fixed sleeve 531 is fixedly installed on the head of the lifting screw 51, while the sliding sleeve 532 is slidably installed on the lifting screw 51. An extension arm 533 and a pull arm 534 are provided between the fixed sleeve 531 and the sliding sleeve 532. One end of the extension arm 533 is rotatably connected to the sliding sleeve 532 by a pin, and the other end is connected to the middle of the pull arm 534 by a pin. The sliding sleeve 532 is rotatably connected to the fixed sleeve 531 via a pin. When the sliding sleeve 532 moves linearly along the lifting screw 51, the extension arm 533 drives the pulling arm 534 to rotate around the end of the fixed sleeve 531, thereby switching between the unfolded and retracted states. The demolding assembly 53 also includes a demolding cylinder 535, the piston rod of which is connected to the sliding sleeve 532 via a floating joint 536, thereby driving the sliding sleeve 532 to move linearly along the lifting screw 51.

[0064] For details, please refer to Figure 7 and Figure 8 The mold assembly 10 includes a mold cylinder 101, a mold base plate 102, and a mold positioning cylinder 103. The mold cylinder 101 is mounted on the mold base plate 102, and the mold positioning cylinder 103 is sleeved and installed inside the mold cylinder 101, thereby forming a polyurethane product between the mold cylinder 101 and the mold positioning cylinder 103. The demolding component 53 extends into the mold positioning cylinder 103, unfolds the pull-out support arm 534, and pulls the casting body 100 out of the mold assembly 10.

[0065] Furthermore, a pressing frame 6 is also provided on the Z-axis 3 of the truss, which moves downward with the Z-axis 3 and presses against the top of the mold positioning cylinder 103, thereby assisting the demolding assembly 53 in pulling the casting body 100 out of the mold assembly 10; a fixing ear 104 is provided on the outside of the mold cylinder 101, and the mold positioning cylinder 103 is fixed by inserting the external locking tongue 7 into the fixing ear 104, thereby assisting the demolding assembly 53 in pulling the casting body 100 out of the mold assembly 10.

[0066] For details, please refer to Figure 9 and Figure 10 The lifting mechanism 4 includes a lifting base plate 41, a lifting rod 42, a lifting movable plate 43, and a heightening cylinder 44. The heightening cylinder 44 is installed on the lifting movable plate 43. Under the action of the lifting rod 42, the lifting movable plate 43 drives the heightening cylinder 44 to rise and contact the mold base plate 102 of the mold assembly 10, and lifts the mold assembly 10 away from the conveyor. The top of the heightening cylinder 44 is provided with a guide post 441. When the heightening cylinder 44 contacts the mold base plate 102, the guide post 441 is embedded in the guide groove 105 at the bottom of the mold base plate 102, so that the mold assembly 10 is positioned and lifted.

[0067] For further details, please refer to Figure 11 The lifting rod 42 is equipped with a lifting power mechanism to drive the lifting rod 42 to move up and down. The lifting power mechanism includes a lifting motor 45, a lifting gear box 46, and a lifting coupling 47. The lifting rod 42 is a lead screw and meshes with the lifting gear box 46. The output shaft of the lifting motor 45 is connected to the lifting gear box 46 through the lifting coupling 47. The lifting gear box 46 includes a gearbox 461. A worm gear 462 and a worm 463 are provided in the gearbox 461. The worm 463 is connected to the lifting coupling 47. The lifting rod 42 is sleeved and meshed in the worm gear 462. Under the action of the lifting motor 45, the worm gear 462 and the worm 463 drive the lifting rod 42 to move up and down in the vertical direction.

[0068] This invention utilizes a Z-axis driven demolding mechanism to achieve continuous horizontal movement, vertical lifting, and demolding pull-out actions. Combined with a lifting mechanism, it completes mold positioning and lifting, requiring minimal manual intervention, significantly improving work efficiency and reducing labor intensity. The demolding assembly, through the linkage of the extension arm and the pull-out arm, allows for flexible switching between unfolding and retraction, ensuring uniform pulling force and preventing damage to the casting. The cooperation between the pressure mold frame and the external locking tongue further secures the mold positioning cylinder, preventing mold displacement during demolding, ensuring demolding accuracy, and extending mold lifespan.

[0069] This invention also provides a method for using a polyurethane product demolding and material transfer device; please refer to [link to relevant documentation]. Figure 12-14 It includes the following steps:

[0070] Step A: First, the mold assembly 10 is transported to the top of the lifting mechanism 4 by the conveyor.

[0071] Step A1: Start the lifting motor 45, and the lifting rod 42 drives the lifting movable plate 43 and the heightening cylinder 44 to rise. When they come into contact with the mold base plate 102, the guide column 441 is embedded in the guide groove 105 at the bottom of the mold base plate 102, so that the mold assembly 10 is lifted away from the conveyor.

[0072] Step B: Next, the demolding mechanism 5 moves downward under the action of the truss Z-axis 3;

[0073] Step B1: The Z-axis lifting rod 32 moves down along the longitudinal guide rail, driving the demolding mechanism 5 to descend until the mold pressing frame 6 presses against the top of the mold positioning cylinder 103;

[0074] Step C: Then, under the action of the lifting screw 51, the demolding component 53 descends and extends into the mold assembly 10;

[0075] Step C1: Under the action of the demolding motor 52, the demolding gearbox 55 drives the lifting screw 51 to move the demolding assembly 53 downward and extend into the mold assembly 10;

[0076] Step D: Next, extend the pull-out arm 534;

[0077] Step D1: Under the action of the demolding cylinder 535, the sliding sleeve 532 moves downward, and the extension arm 533 drives the pulling arm 534 to rotate around the end of the fixed sleeve 531 to achieve the unfolded state.

[0078] Step E: Then, pull out the cast body 100;

[0079] Step E1: Under the action of the lifting screw 51, the demolding assembly 53 rises, thereby pulling the casting body 100 out of the mold assembly 10;

[0080] Step F: Finally, transfer the casting body 100;

[0081] Step F1: The demolding mechanism 5, carrying the casting body 100, rises under the action of the Z-axis 3 of the truss and moves horizontally along the transverse guide rail on the truss beam 2 to realize material transfer.

[0082] The method is simple and streamlined, with smooth connections between each step from mold conveying, lifting, demolding, pulling to material transfer, reducing safety hazards during operation, improving production continuity, and helping to achieve large-scale production.

[0083] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A demolding and material transfer device for polyurethane products, characterized in that, It includes a truss column (1), the bottom of which is fixed to the ground and the top is equipped with a truss beam (2), and the truss beam (2) is equipped with a truss Z-axis (3) that can move horizontally and move up and down. A lifting mechanism (4) is provided on one side of the truss column (1) to lift the mold assembly (10) on the conveyor. A demolding mechanism (5) is installed at the bottom of the Z-axis (3) of the truss. The Z-axis (3) of the truss drives the demolding mechanism (5) to extend into the mold assembly (10) and pull the casting body (100) out of the mold assembly (10).

2. The polyurethane product demolding and material transfer equipment according to claim 1, characterized in that, The truss Z-axis (3) includes a Z-axis transverse frame (31) and a Z-axis lifting rod (32). The Z-axis transverse frame (31) is connected to the transverse guide rail on the truss beam (2), so that the Z-axis transverse frame (31) can move horizontally along the truss beam (2). The Z-axis lifting rod (32) is connected to the longitudinal guide rail inside the Z-axis transverse frame (31), so that the Z-axis lifting rod (32) can move up and down in the vertical direction.

3. The polyurethane product demolding and material transfer equipment according to claim 2, characterized in that, The demolding mechanism (5) includes a lifting screw (51), a demolding motor (52), and a demolding assembly (53); the output shaft of the demolding motor (52) is connected to the demolding gearbox (55) via a demolding coupling (54), and the lifting screw (51) moves up and down in the vertical direction under the drive of the demolding gearbox (55).

4. The polyurethane product demolding and material transfer equipment according to claim 3, characterized in that, A rectangular slider (56) is installed at the tail of the lifting screw (51), and the rectangular slider (56) is located in the rectangular slide cylinder (57) to guide the lifting screw (51) to rise and fall in the vertical direction.

5. The polyurethane product demolding and material transfer equipment according to claim 3, characterized in that, The demolding assembly (53) is installed on the head of the lifting screw (51) and includes a fixed sleeve (531) and a sliding sleeve (532). The fixed sleeve (531) is fixedly installed on the head of the lifting screw (51), while the sliding sleeve (532) is slidably installed on the lifting screw (51). An extension arm (533) and a pull arm (534) are provided between the fixed sleeve (531) and the sliding sleeve (532). One end of the extension arm (533) is rotatably connected to the sliding sleeve (532) via a pin, and the other end is rotatably connected to the middle of the pull arm (534) via a pin. The end of the pull arm (534) is rotatably connected to the fixed sleeve (531) via a pin. When the sliding sleeve (532) moves linearly along the lifting screw (51), the extension arm (533) drives the pull arm (534) to rotate around the end of the fixed sleeve (531), thereby switching between the unfolded state and the retracted state. The demolding assembly (53) also includes a demolding cylinder (535), the piston rod of which is connected to the sliding sleeve (532) via a floating joint (536), thereby driving the sliding sleeve (532) to move linearly along the lifting screw (51).

6. The polyurethane product demolding and material transfer equipment according to claim 5, characterized in that, The mold assembly (10) includes a mold cylinder (101), a mold base plate (102), and a mold positioning cylinder (103). The mold cylinder (101) is mounted on the mold base plate (102), and the mold positioning cylinder (103) is sleeved and installed inside the mold cylinder (101), thereby forming a polyurethane product between the mold cylinder (101) and the mold positioning cylinder (103). The demolding component (53) extends into the mold positioning cylinder (103), unfolds the pull-out arm (534), and pulls the casting body (100) out of the mold assembly (10).

7. The polyurethane product demolding and material transfer equipment according to claim 6, characterized in that, The truss Z-axis (3) is also provided with a pressing frame (6), which moves down with the truss Z-axis (3) and presses the top of the mold positioning cylinder (103), thereby assisting the demolding assembly (53) in pulling the casting body (100) out of the mold assembly (10); The mold cylinder (101) is provided with a fixing ear (104) on the outside. The fixing ear (104) is inserted by an external locking tongue (7) to fix the mold positioning cylinder (103), thereby assisting the demolding assembly (53) to pull the casting body (100) out of the mold assembly (10).

8. The polyurethane product demolding and material transfer equipment according to claim 6, characterized in that, The lifting mechanism (4) includes a lifting base plate (41), a lifting rod (42), a lifting movable plate (43), and a heightening cylinder (44). The heightening cylinder (44) is installed on the lifting movable plate (43). Under the action of the lifting rod (42), the lifting movable plate (43) drives the heightening cylinder (44) to rise and contact the mold base plate (102) of the mold assembly (10), and lifts the mold assembly (10) away from the conveyor. The top of the lifting cylinder (44) is provided with a guide post (441). When the lifting cylinder (44) contacts the mold base plate (102), the guide post (441) is embedded in the guide groove (105) at the bottom of the mold base plate (102), so that the mold assembly (10) is positioned and lifted.

9. The polyurethane product demolding and material transfer equipment according to claim 8, characterized in that, The lifting rod (42) is equipped with a lifting power mechanism to drive the lifting rod (42) to move up and down. The lifting power mechanism includes a lifting motor (45), a lifting gearbox (46) and a lifting coupling (47). The lifting rod (42) is a lead screw and meshes with the lifting gearbox (46). The output shaft of the lifting motor (45) is connected to the lifting gearbox (46) through the lifting coupling (47). The lifting gearbox (46) includes a gearbox (461), in which a worm gear (462) and a worm (463) are provided. The worm (463) is connected to the lifting coupling (47), and the lifting rod (42) is sleeved and engaged in the worm gear (462). Under the action of the lifting motor (45), the worm gear (462) and the worm (463) drive the lifting rod (42) to rise and fall in the vertical direction.

10. A method of using a polyurethane product demolding and material transfer device, characterized in that, Includes the following steps: Step A: First, the mold assembly (10) is transported to the top of the lifting mechanism (4) by the conveyor. Step A1: Start the lifting motor (45), and the lifting rod (42) drives the lifting movable plate (43) and the heightening cylinder (44) to rise. When they come into contact with the mold base plate (102), the guide column (441) is embedded in the guide groove (105) at the bottom of the mold base plate (102), so that the mold assembly (10) is lifted away from the conveyor. Step B: Next, the demolding mechanism (5) moves downward under the action of the truss Z-axis (3); Step B1: The Z-axis lifting rod (32) moves down along the longitudinal guide rail, driving the demolding mechanism (5) to descend until the pressure mold frame (6) presses against the top of the mold positioning cylinder (103); Step C: Then, the demolding assembly (53) descends and extends into the mold assembly (10) under the action of the lifting screw (51); Step C1: Under the action of the demolding motor (52), the demolding gearbox (55) drives the lifting screw (51) to drive the demolding assembly (53) to descend and extend into the mold assembly (10); Step D: Next, extend the pull-out arm (534). Step D1: Under the action of the demolding cylinder (535), the sliding sleeve (532) moves downward, and the extension arm (533) drives the pulling arm (534) to rotate around the end of the fixed sleeve (531) to achieve the unfolded state; Step E: Then, pull out the cast body (100). Step E1: The demolding assembly (53) rises under the action of the lifting screw (51), thereby pulling the casting body (100) out of the mold assembly (10); Step F: Finally, transfer the casting body (100); Step F1: The demolding mechanism (5) carries the casting body (100) and rises under the action of the Z-axis (3) of the truss, and moves horizontally along the transverse guide rail on the truss beam (2) to realize material transfer.

Images