An adaptive stripping device for a concrete precast element mold

Abstract

The application provides a self-adaptive demolding device for a concrete prefabricated part mold, relates to the technical field of concrete demolding, and comprises a composite base, square grooves are formed in the middle of the two sides of the composite base, integral protruding structures are arranged above the two sides of the square grooves, and a steel bar is fixedly arranged above the protruding structures; two groups of vertical guide frames are fixedly arranged on the top of the composite base, the vertical guide frames are U-shaped structures, infrared distance measuring sensors one are fixedly arranged on the top of the vertical guide frames, a long-distance electric cylinder is arranged to cooperate with a positioner, a micro-motion electric cylinder is arranged to drive a rotating arm and a clamping piece structure, a self-adaptive clamping and fixing function is provided, the positioner is driven to move by the long-distance electric cylinder to adapt to molds of different sizes, the rotating arm is driven to rotate by the micro-motion electric cylinder, the clamping piece is attached to the concrete prefabricated part in the mold, double synchronous fixing of the mold and the prefabricated part is realized, the prefabricated part is prevented from accidentally falling and being damaged before demolding, and the adaptability is high.

Description

Technical Field

[0001] This invention relates to the field of concrete demolding technology, and in particular to an adaptive demolding device for precast concrete molds. Background Technology

[0002] When making concrete slabs, molds are required. Concrete is poured directly into the mold, and after the concrete solidifies, the concrete slab is formed. The mold is then inverted, and the sides of the mold are tapped. The vibration causes the concrete slab to gradually separate from the inner wall of the mold, thus achieving demolding.

[0003] The demolding devices currently in use mainly rely on gripping equipment to flip the mold, which is not adaptable enough. They are not convenient to automatically adapt to different types of molds for fixing and to secure the concrete slab, thus preventing the concrete slab from falling off and breaking before active demolding. There is a lack of a stable automatic demolding process. Summary of the Invention

[0004] In view of this, the present invention addresses the shortcomings of the prior art by providing an adaptive demolding device for precast concrete molds.

[0005] This invention provides an adaptive demolding device for precast concrete molds, specifically comprising: a composite base, wherein square grooves are formed in the middle of both sides of the composite base, and an integral protrusion structure is formed above both sides of the square grooves, with steel bars fixedly installed on the top of the protrusion structure; two sets of vertical guide frames are fixedly installed on the top two sides of the composite base, the vertical guide frames are U-shaped structures, and an infrared ranging sensor is fixedly installed in the middle of the top of each vertical guide frame; a mold lifting device is vertically slidably installed in the middle of each vertical guide frame, and a linear motor is fixedly installed on one side of the mold lifting device. The mold lifting frame has an integrally integrated flipping shaft on one side, which is rotatably mounted inside the mold lifting device. Both sides of the adjacent surfaces of the two sets of mold lifting frames have protruding structures, and locators are slidably mounted outside each protruding structure. Each locator has a slot, and a rotating arm is rotatably mounted above the inner side of each slot. A clamping component is rotatably mounted at the middle of the end of each rotating arm. An extension frame is integrally mounted at the adjacent ends of the two sets of locators on the same side. Long-distance electric cylinders are fixedly mounted at both ends of the adjacent surfaces of the two sets of mold lifting frames, and the telescopic ends of the long-distance electric cylinders are fixed inside the extension frame.

[0006] Optionally, a support cylinder is fixedly arranged in an array above the middle of the composite base, and a support plate is fixedly arranged on the top of the support cylinder; an air pump is fixedly arranged in the middle of one side of the composite base, and an air passage is arranged between the air pump and the support cylinder, and a gas pressure sensor is also arranged inside the air passage.

[0007] Optionally, a tilting worm gear is rotatably installed on the lower part of the mold lifting device, and a servo motor is fixedly installed on the outside of the mold lifting device. The servo motor and the tilting worm gear are connected by a bevel gear set.

[0008] Optionally, a flipping worm wheel is fixedly installed on the outside of each flipping shaft, and the flipping worm wheel is connected to the flipping worm gear drive; an angle sensor is fixedly installed at the outer end of each flipping shaft; and a through hole structure for threading is provided in the middle of the flipping shaft.

[0009] Optionally, the rotating shaft of each of the rotating arms is fixedly provided with a driven gear through the positioner; a linkage gear is also rotatably provided outside the positioner, and the linkage gear meshes with the driven gear; a micro-electric cylinder is fixedly provided below the outside of the positioner, and a drive rack is fixedly provided at the telescopic end of the micro-electric cylinder, and the drive rack meshes with the linkage gear.

[0010] Optionally, four sets of pusher cylinders are fixedly installed on the top two sides of the composite base, and demolding devices are fixedly installed on the telescopic ends of the pusher cylinders, with the demolding devices sliding on the top of the composite base.

[0011] Optionally, three sets of striking rods are slidably arranged above the demolding device. The striking rods have a stepped structure with wide and narrow diameters. The narrow ends of the striking rods are fitted with springs and slidably pass through guide members. The narrow ends of the striking rods pass through the guide members and are fixedly fitted with limiting plates. The bottom of the guide members has a through groove structure.

[0012] Optionally, a drive motor is also fixedly installed on the lower exterior of the demolding device, a transmission wheel is fixedly installed on the shaft end of the drive motor, and an eccentric rod is fixedly installed above the transmission wheel. The eccentric rod slides in the bottom through groove of the guide member.

[0013] Optionally, an infrared ranging sensor 2 is fixedly installed on one side above the demolding device.

[0014] The beneficial effects are as follows: The structure of the rotating arm and clamping component, driven by a long-distance electric cylinder, a positioner, and a micro-motion electric cylinder, provides an adaptive clamping and fixing function. The long-distance electric cylinder drives the positioner to move and adapt to molds of different sizes, and the micro-motion electric cylinder drives the rotating arm to rotate, so that the clamping component fits against the concrete precast component inside the mold. This achieves dual synchronous fixing of the mold and the precast component, avoiding accidental drop and damage of the precast component before demolding, and has strong adaptability.

[0015] The lifting and flipping structure, equipped with a worm gear drive, angle sensor, and infrared distance sensor, provides a precise and controllable mold flipping function. A servo motor drives the flipping worm to rotate the flipping worm wheel and the flipping shaft. The angle sensor monitors the flipping angle in real time to achieve precise mold flipping. At the same time, a linear motor drives the mold lifting device to lift and lower, and the infrared distance sensor monitors the lifting height in real time, ensuring that the flipping and lifting actions are controllable throughout the process and greatly improving the stability of the demolding process.

[0016] The system incorporates an elastic impact vibration mechanism and a height-adjustable buffer support plate, providing an efficient and non-destructive automatic demolding function. The drive motor rotates the eccentric rod, which, in conjunction with a spring, pushes the impact rod to reciprocate and strike the mold. High-frequency vibration assists in the rapid separation of the mold and the preform. Simultaneously, a support cylinder raises and lowers the support plate, providing buffer support for the preform and preventing it from being damaged during demolding. This achieves a standardized and automated complete demolding process. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the present invention is shown; Figure 2 A schematic diagram of the tilting structure of an embodiment of the present invention is shown; Figure 3 A schematic diagram of the clamping state structure in an embodiment of the present invention is shown; Figure 4 A schematic diagram of the flipped state structure in an embodiment of the present invention is shown; Figure 5 A schematic diagram of the demolding state structure of an embodiment of the present invention is shown; Figure 6 A three-dimensional structural schematic diagram of the mold lifting frame in an embodiment of the present invention is shown; Figure 7 A schematic diagram of the transmission structure of the mold lifting frame in an embodiment of the present invention is shown; Figure 8 A three-dimensional structural schematic diagram of the positioner in an embodiment of the present invention is shown; Figure 9 A schematic diagram of the assembly structure of the demolding device in an embodiment of the present invention is shown; Figure 10 An embodiment of the present invention is shown. Figure 6 A magnified schematic diagram of the structure at point A.

[0018] List of reference numerals in the attached diagram: 1. Composite base; 101. Steel bar; 102. Support cylinder; 103. Support plate; 104. Air pump; 2. Vertical guide frame; 201. Infrared ranging sensor one; 3. Mold lifting device; 301. Linear motor; 302. Tilting worm gear; 303. Servo motor; 4. Mold lifting frame; 401. Tilting shaft; 402. Tilting worm wheel; 403. Angle sensor; 5. Positioner; 501. Extension frame; 502. Rotary arm; 503. Clamping component; 504. Driven gear; 505. Linkage gear; 506. Micro-motion electric cylinder; 507. Drive rack; 6. Long-distance electric cylinder; 7. Pushing electric cylinder; 8. Demolding device; 801. Striking rod; 802. Guide push component; 803. Limiting plate; 9. Drive motor; 901. Transmission wheel; 902. Eccentric rod; 10. Infrared ranging sensor two. Detailed Implementation

[0019] To make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.

[0020] Example 1: Please refer to the accompanying drawings in the instruction manual, such as... Figures 1 to 10 As shown: This invention proposes an adaptive demolding device for precast concrete molds, comprising: a composite base 1, with square grooves on both sides of the composite base 1, and an integral protrusion structure above both sides of the square grooves, with steel bars 101 fixedly installed on the top of the protrusion structure; two sets of vertical guide frames 2 fixedly installed on the top sides of the composite base 1, the vertical guide frames 2 having a U-shaped structure, and an infrared ranging sensor 201 fixedly installed in the middle of the top of each vertical guide frame 2; a mold lifting device 3 vertically slidingly installed in the middle of each vertical guide frame 2, with a linear motor 301 fixedly installed on one side of the mold lifting device 3; and a mold lifting frame 4 for lifting the mold. A rotating shaft 401 is integrally installed in the middle of one side of the frame 4, and the rotating shaft 401 is rotatably installed in the mold lifting device 3; both sides of the adjacent surfaces of the two sets of mold lifting frames 4 have protruding structures, and locators 5 are slidably installed outside the protruding structures; each locator 5 has a slot, and a rotating arm 502 is rotatably installed above the inner side of the slot, and a clamping part 503 is rotatably installed in the middle of the end of the rotating arm 502; an extension frame 501 is integrally installed at the adjacent ends of the two sets of locators 5 on the same side; a long-distance electric cylinder 6 is fixedly installed at both ends of the adjacent surfaces of the two sets of mold lifting frames 4, and the telescopic ends of the long-distance electric cylinder 6 are fixed inside the extension frame 501.

[0021] Among them, a support cylinder 102 is fixedly arranged in the middle upper part of the composite base 1, and a support plate 103 is fixedly arranged on the top of the support cylinder 102; an air pump 104 is fixedly arranged in the middle of one side of the composite base 1, and an air passage is arranged between the air pump 104 and the support cylinder 102, and a gas pressure sensor is also arranged inside the air passage.

[0022] Each of the mold lifting devices 3 has a rotating worm gear 302 rotatably mounted on its lower exterior, and a servo motor 303 is fixedly mounted on its exterior. The servo motor 303 and the rotating worm gear 302 are connected by a bevel gear set.

[0023] The rotating shaft 401 is equipped with a rotating worm gear 402 fixedly on its exterior, and the rotating worm gear 402 is connected to the rotating worm 302 in a transmission manner; an angle sensor 403 is fixedly installed at the outer end of the rotating shaft 401; and the middle of the rotating shaft 401 is a through hole structure for threading wire.

[0024] Among them, the rotating shaft of the rotating arm 502 passes through the positioner 5 and is fixedly equipped with a driven gear 504; the relative position of the rotating arm 502 and the driven gear 504 is fixed to ensure that the rotating arm 502 rotates synchronously when the driven gear 504 rotates; a linkage gear 505 is also rotatably arranged outside the positioner 5, and the linkage gear 505 meshes with the driven gear 504; a micro-motion electric cylinder 506 is fixedly arranged on the lower part of the outside of the positioner 5, and a drive rack 507 is fixedly arranged on the telescopic end of the micro-motion electric cylinder 506, and the drive rack 507 meshes with the linkage gear 505.

[0025] Four sets of pusher cylinders 7 are fixedly installed on the top two sides of the composite base 1. The extension end of the pusher cylinder 7 is fixedly installed with a demolding device 8, which slides on the top of the composite base 1.

[0026] Among them, three sets of striking rods 801 are slidably arranged above the demolding device 8. The striking rods 801 have a stepped structure with wide and narrow diameters. The narrow end of each striking rod 801 is fitted with a spring and slidably passes through a guide member 802. The narrow end of each striking rod 801 passes through the guide member 802 and is fixedly fitted with a limiting piece 803. The bottom of the guide member 802 has a through groove structure.

[0027] Among them, a drive motor 9 is fixedly installed on the lower part of the demolding device 8. A transmission wheel 901 is fixedly installed on the shaft end of the drive motor 9. An eccentric rod 902 is fixedly installed above the transmission wheel 901. The eccentric rod 902 slides in the bottom through groove of the guide member 802.

[0028] Infrared ranging sensors 10 are fixedly installed on one side above the demolding device 8.

[0029] Infrared ranging can be replaced by proximity sensors or other monitoring methods, as long as location monitoring can be achieved.

[0030] Mold placement: Use the square slots at both ends of the composite base 1 to assist in placing the mold. Use a forklift or hydraulic truck to lift the mold to the top of the composite base 1, where the steel bar 101 supports the mold. Then adjust the mold to be directly above the composite base 1, ready for subsequent operations.

[0031] Mold positioning and fixing: Start the linear motor 301 to lower the mold lifting device 3 and move the four sets of locators 5 to the corners of the mold; start the long-distance electric cylinder 6 to drive the extension frame 501 and the locators 5 to move, and use the locators 5 to clamp the two sides of the mold to adapt to molds of different sizes; then start the micro-motion electric cylinder 506 to drive the drive rack 507 to move, the drive rack 507 drives the linkage gear 505 to rotate, and then drives the driven gear 504 and the rotating arm 502 to rotate, so that the clamping part 503 fits against the concrete slab inside the mold, completing the double fixing; the long-distance electric cylinder 6 and the micro-motion electric cylinder 506 have built-in pressure sensors and automatically stop working after clamping.

[0032] Example 2: Based on Example 1; Mold flipping: Start the linear motor 301 to lift the mold lifting device 3 and lift the mold to the highest point of the vertical guide frame 2; start the servo motor 303 to drive the flipping worm 302 to rotate, the flipping worm 302 drives the flipping worm wheel 402 and the flipping shaft 401 to rotate, and monitor the flipping angle through the angle sensor 403. Stop when the mold lifting frame 4 flips half a turn and the mold opening faces downward.

[0033] Concrete slab buffer support: Lower the formwork lifting device 3 and place the formwork back above the steel bar 101; start the air pump 104 to inflate the support cylinder 102, lift the support plate 103 to support the concrete slab, and play a buffering role; when the internal pressure of the support cylinder 102 reaches the set value, the gas pressure sensor is triggered, and the air pump 104 automatically stops working.

[0034] Mold unlocking and demolding: Reset the locator 5 to unlock the mold and remove the restriction; start the linear motor 301 to raise the mold lifting device 3. The infrared ranging sensor 201 monitors the height of the mold lifting device 3 in real time for precise control; the linear motor 301 has a built-in servo closed-loop control module and a normally closed electromagnetic brake. When the mold lifting device 3 is raised or lowered to the target height, the servo system achieves electrical position locking in real time through the encoder closed loop. At the same time, the electromagnetic brake completes mechanical hard locking after power loss. With the real-time position verification of the infrared ranging sensor 201, the lifting position of the mold lifting device 3 can be stably locked, avoiding the risk of position slippage and mold falling during demolding operations, and ensuring the safety and stability of the device operation.

[0035] Example 3: Based on Example 1; Vibration demolding: Extend the pusher cylinder 7 to bring the demolding device 8 close to the mold. The infrared distance sensor 10 monitors the distance for precise positioning. After the demolding device 8 is in place, start the drive motor 9 to drive the transmission wheel 901 and the eccentric rod 902 to rotate. The eccentric rod 902 slides under the guide member 802, and in conjunction with the spring, pushes the striking rod 801 to make reciprocating motion. The demolding is achieved by generating vibration by striking the mold. If necessary, manual assistance can be provided to accelerate the demolding speed.

[0036] Subsequent cleaning and recycling: Reverse the air pump 104 to extract the air from the support cylinder 102, so that the support cylinder 102 and the support plate 103 are reset, and the concrete slab falls on the steel bar 101; at this time, the weight of the mold is greatly reduced, and it can be manually moved away for recycling, and then the concrete slab can be recycled by forklift or hydraulic truck.

[0037] Maintenance and Cycle: Steel bar 101 can be directly replaced after it wears out. By repeating all the above steps, adaptive demolding cycle operation can be achieved.

[0038] The specific usage and function of this embodiment: In this invention, during operation, the square slots at both ends of the composite base 1 facilitate the placement of the mold. The mold is lifted onto the composite base 1 using a forklift or hydraulic truck, supported by the steel bar 101. Then, the mold is moved to the middle position above the composite base 1, and subsequent work can be performed. The linear motor 301 can control the lifting and lowering of the mold lifting device 3. First, the mold lifting device 3 is lowered, and the four sets of locators 5 are moved to the corner of the mold. The long-distance electric cylinder 6 is started to drive the extension frame 501 and the locators 5 to move. The mold is fixed and clamped by the closing of the locators 5. Then, the micro-motion electric cylinder 506 is started to drive the drive rack 507 to move. The drive rack 507 drives the linkage gear 505 to rotate. The linkage gear 505 drives the driven gear 504 to rotate. The driven gear 504 drives the rotating arm 502 to rotate, thereby making the clamping part 503 fit against the concrete slab inside the mold for fixation. The long-distance electric cylinder 6 and the micro-motion electric cylinder 506 have built-in pressure sensors and stop working when the clamping is completed. Since the positioner 5 only fixes the two sides of the mold, the width of the mold used needs to be greater than the minimum gap between the two positioners 5 to ensure that the positioner 5 can clamp the mold; thus, it can be adapted to molds of different sizes for fixing. Then, the mold lifting device 3 is raised to lift the mold. When the mold is raised to the highest position of the vertical guide frame 2, the mold lifting frame 4 will not contact the composite base 1 when rotated. At this time, the servo motor 303 is started to drive the rotating worm gear 302 to rotate. The rotating worm gear 302 drives the rotating worm wheel 402 and the rotating shaft 401 to rotate. The angle is monitored by the angle sensor 403. The mold lifting frame 4 is rotated half a turn and then stopped. At this time, the mold opening is facing down. Then, the lifting device 3 is moved downwards and the mold is placed back above the steel bar 101; the air pump 104 is started to inflate the support cylinder 102, and the support plate 103 is lifted by air. The support plate 103 contacts the concrete slab to provide a buffering effect. When the internal pressure of the support cylinder 102 increases, the gas pressure sensor is triggered and the air pump 104 stops working. At this point, reset the locator 5, unlock the mold, and allow the mold to be demolded without being restricted. The linear motor 301 controls the lifting device 3 to rise; the infrared distance sensor 201 can monitor the height of the lifting device 3 for easy control. The extension and pushing electric cylinder 7 brings the demolding device 8 close to the mold, and the distance can be monitored by the infrared distance sensor 10. After the demolding device 8 is close to the mold, the drive motor 9 is started to drive the transmission wheel 901 and the eccentric rod 902 to rotate. The eccentric rod 902 slides under the guide member 802, and works with the striking rod 801 to form a reciprocating mechanism. The guide member 802, together with the spring, pushes the striking rod 801, and the striking rod 801 strikes the mold, and the mold is demolded by vibration. Vibration and tapping of the mold can demold the mold; if necessary, manual tapping can be used to speed up the demolding process. Then, the reverse air pump 104 extracts the air from the support cylinder 102, the support cylinder 102 resets, the support plate 103 descends, and the concrete slab falls on top of the steel bar 101; at this time, the weight of the mold is greatly reduced, and it can be easily moved and recycled manually, and then the concrete slab can be recycled with a forklift or hydraulic truck. Steel bar 101 can be replaced after it wears out; Repeating the aforementioned steps will achieve adaptive demolding.

Claims

1. An adaptive demolding device for a precast concrete component mold, characterized in that, include: A composite base (1) has square grooves on both sides of the composite base (1), and an integral protrusion structure is provided above both sides of the square grooves. A steel bar (101) is fixedly installed on the top of the protrusion structure. Two sets of vertical guide frames (2) are fixedly installed on the top sides of the composite base (1). The vertical guide frames (2) are U-shaped structures. An infrared ranging sensor (201) is fixedly installed in the middle of the top of each vertical guide frame (2). A mold lifting device (3) is vertically slidably installed in the middle of each vertical guide frame (2). A linear motor (301) is fixedly installed on one side of the mold lifting device (3). A mold lifting frame (4) is integrally installed in the middle of one side of the mold lifting frame (4). A flip shaft (401) is rotatably mounted inside the mold lifting device (3); both sides of the adjacent surfaces of the two sets of mold lifting frames (4) are protruding structures, and a locator (5) is slidably mounted outside the protruding structure; a slot is opened in each locator (5), and a rotating arm (502) is rotatably mounted above the inner side of the slot, and a clamping part (503) is rotatably mounted in the middle of the end of the rotating arm (502); an extension frame (501) is integrally mounted on the adjacent ends of the two sets of locators (5) on the same side; a long-distance electric cylinder (6) is fixedly mounted on both ends of the adjacent surfaces of the two sets of mold lifting frames (4), and the telescopic ends of the long-distance electric cylinder (6) are fixed inside the extension frame (501).

2. The adaptive demolding device for a precast concrete component mold as described in claim 1, characterized in that, A support cylinder (102) is fixedly arranged in the middle upper part of the composite base (1), and a support plate (103) is fixedly arranged on the top of the support cylinder (102); an air pump (104) is fixedly arranged in the middle of one side of the composite base (1), and an air circuit is arranged between the air pump (104) and the support cylinder (102), and a gas pressure sensor is also arranged inside the air circuit.

3. The adaptive demolding device for a precast concrete component mold as described in claim 1, characterized in that, Each of the lifting mold device (3) has a rotating worm gear (302) rotatably installed on its lower exterior. Each of the lifting mold device (3) has a fixed servo motor (303) installed on its exterior. The servo motor (303) and the rotating worm gear (302) are connected by a bevel gear set.

4. The adaptive demolding device for a precast concrete component mold as described in claim 3, characterized in that, The outside of the flip shaft (401) is fixedly provided with a flip worm wheel (402), which is connected to the flip worm (302) for transmission; the outer end of the flip shaft (401) is fixedly provided with an angle sensor (403); the middle of the flip shaft (401) is a through hole structure for threading.

5. The adaptive demolding device for a precast concrete component mold as described in claim 1, characterized in that, The rotating shaft of each rotating arm (502) passes through the positioner (5) and is fixedly provided with a driven gear (504); a linkage gear (505) is also rotatably provided outside the positioner (5), and the linkage gear (505) meshes with the driven gear (504); a micro-motion electric cylinder (506) is fixedly provided on the lower outside of the positioner (5), and a drive rack (507) is fixedly provided on the telescopic end of the micro-motion electric cylinder (506), and the drive rack (507) meshes with the linkage gear (505).

6. The adaptive demolding device for a precast concrete component mold as described in claim 1, characterized in that, Four sets of push cylinders (7) are fixedly installed on the top two sides of the composite base (1). A demolding device (8) is fixedly installed on the telescopic end of the push cylinder (7). The demolding device (8) slides on the top of the composite base (1).

7. The adaptive demolding device for a precast concrete component mold as described in claim 6, characterized in that, Three sets of striking rods (801) are slidably arranged above the demolding device (8). The striking rods (801) have a stepped structure with wide and narrow diameters. The narrow ends of the striking rods (801) are fitted with springs and slidably pass through the guide pushers (802). The narrow ends of the striking rods (801) pass through the guide pushers (802) and are fixedly fitted with limiting pieces (803). The bottom of the guide pushers (802) has a through groove structure.

8. The adaptive demolding device for a precast concrete component mold as described in claim 7, characterized in that, A drive motor (9) is fixedly installed on the lower outside of the demolding device (8). A transmission wheel (901) is fixedly installed on the shaft end of the drive motor (9). An eccentric rod (902) is fixedly installed above the transmission wheel (901). The eccentric rod (902) slides in the bottom through groove of the guide member (802).

9. The adaptive demolding device for a precast concrete component mold as described in claim 6, characterized in that, Infrared ranging sensors (10) are fixedly installed on one side above the demolding device (8).

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