Stable forming device for cement products

Abstract

The invention relates to the technical field of cement product processing and manufacturing equipment, in particular to a stable forming device for cement products. The invention provides a stable forming device for cement products, which comprises a turning device, symmetrically distributed lifting frames are arranged on the turning device, a turning frame is arranged between the lifting frames, the turning frame is pivoted between the symmetrically distributed lifting frames through a rotating shaft, symmetrically distributed clamping grooves are formed in the turning frame, and the clamping grooves are connected with the lifting frames through a rotating shaft. The design of the clamping grooves is matched with the size of the mold, servo motors are installed on the lifting frames respectively, and output shafts of the servo motors are in key connection with first gears respectively. Through the design of the adjustable clamping groove, buffering and damping, automatic sliding, mold pushing and the like, the problems that a cement prefabricated part is prone to being broken during demolding, and the manual removing efficiency is low are effectively solved; the stability and the safety in the demolding process are remarkably improved, the device is suitable for molds of various specifications, automatic operation is achieved, the labor intensity is greatly reduced, and the production efficiency and the finished product quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cement product processing and manufacturing equipment, and particularly to a stable forming device for cement products. Background Art

[0002] In the field of cement product processing, the forming and demoulding of prefabricated components are key links in the production process. At present, common cement prefabricated components (such as trench covers, curb stones, etc.) usually adopt a casting forming process, that is, pouring cement slurry into a mold, and after it solidifies, demoulding to take out the finished product.

[0003] However, the existing demoulding technologies have many defects, seriously restricting the production efficiency and product qualification rate. First, the risk of product damage is high. Traditional demoulding methods usually adopt direct flipping or free-fall demoulding. When the prefabricated component is separated from the mold, it lacks buffer protection and is extremely easy to crack or break due to hitting the ground or the receiving device. This not only increases the scrap rate but also leads to material waste and additional processing costs. Especially for large or structurally complex cement products, such as trench covers, curb stones, etc., this problem is more prominent. Second, the manual operation efficiency is low. At present, many small and medium-sized cement product enterprises still rely on manual flipping of the mold or use simple machinery for demoulding. The labor intensity of workers is high, and the operation speed is slow, which is difficult to meet the large-scale production requirements. In addition, frequent manual intervention may also lead to mold positioning deviation, further affecting the product size accuracy and consistency.

[0004] Based on the above situation, there is an urgent need for a stable forming device for cement products. Summary of the Invention

[0005] In order to overcome the disadvantages of high risk of product damage and low manual operation efficiency in traditional demoulding technologies, the technical problem to be solved is: to provide a stable forming device for cement products.

[0006] The technical implementation solution of the present invention is: a stable forming device for cement products, including a turning device, symmetrically distributed casters are installed at the bottom thereof, symmetrically distributed lifting frames are provided on the turning device, a turning frame is arranged between them, the turning frame is pivotally connected between the symmetrically distributed lifting frames through a rotating shaft, symmetrically distributed clamping grooves are formed in the turning frame, the design of the clamping grooves matches the size of the mold, symmetrically distributed supporting blocks are provided on each lifting frame for limiting the turning angle of the turning frame, servo motors are respectively installed on the lifting frames, the output shafts of which all pass through the adjacent lifting frames, and are key-connected with first gears, and symmetrically distributed semi-circular toothed rings are fixedly connected to one side of the turning frame close to the rotating shaft, which are meshed with the adjacent first gears.

[0007] As an improvement to the above solution, on one side of the top of the turning frame away from the rotating shaft, symmetrically distributed rod - supported brackets are fixedly connected, and on one side close to the rotating shaft, symmetrically distributed open - supported brackets are fixedly connected. A positioning frame is slidably connected between adjacent open - supported brackets and rod - supported brackets. A first return spring is connected between the positioning frame and the adjacent rod - supported bracket, and the first return spring is respectively wound around the adjacent rod - supported bracket. A sliding member is slidably connected to the top of each open - supported bracket, and a symmetrically distributed compression spring is connected between it and the adjacent open - supported bracket. The compression spring is respectively wound around the adjacent sliding member. The positioning frame slides up and down on the adjacent sliding member, and a second return spring is connected between the positioning frame and the adjacent sliding member, and it is respectively wound around the adjacent sliding member. A receiving plate is arranged between the two positioning frames.

[0008] As an improvement to the above solution, symmetrically distributed receiving brackets are fixedly connected to the mutually - approaching sides of the positioning frames, and arc - shaped U - shaped card slots are arranged inside them. The receiving plate is rotatably connected and installed between the two positioning frames. Fixed columns are arranged on its side close to the receiving bracket and are respectively clamped into the arc - shaped U - shaped card slots of the receiving bracket. Symmetrically distributed second gears are fixedly connected to the positioning frames, and racks are fixedly connected to each open - supported bracket, and the two mesh with each other to form a gear - rack transmission system.

[0009] As an improvement to the above solution, evenly distributed balls are arranged at the bottom of the receiving plate.

[0010] As an improvement to the above solution, each lifting frame is slidably connected and installed on the turning device, and insertion holes are evenly distributed on it. A positioning pin is arranged on each lifting frame, and the positioning pin can be inserted into the insertion hole to fix the position of the lifting frame.

[0011] As an improvement to the above solution, symmetrically distributed screws are rotatably connected to the turning frame, and a closing frame is configured between them through threaded connection. An end of each screw is fixedly connected with a helical gear, and on one side of each lifting frame close to the screw, an arc - shaped helical gear ring is fixedly connected. The helical gear ring meshes with the adjacent helical gear to achieve the transmission function.

[0012] As an improvement to the above solution, symmetrically distributed ejecting members are slidably connected to the turning frame, and a pressure spring with elastic reset function is connected between it and the turning frame. The pressure spring is wound around the turning frame, and the ejecting member slides in the adjacent card slot respectively.

[0013] As an improvement on the above scheme, each lifting frame is slidably connected with a limiting frame on the side close to the first gear, and a force storage spring is connected between the limiting frame and the adjacent lifting frame, and the force storage spring is respectively wound around the adjacent lifting frame, and a bayonet is opened on the limiting frame, and the first gears are respectively located in the adjacent bayonet; the flipping device is slidably connected with a bayonet on the side close to the first gear, and a linear spring is connected between it and the flipping device, and the linear spring is respectively wound around the adjacent bayonet, and the bayonet is provided with an inclined surface on the side close to the limiting frame; each semicircular gear ring is rotatably connected with a guide plate, and a torsion spring is connected between it and the adjacent semicircular gear ring, and the torsion spring is respectively wound around the adjacent semicircular gear ring; each semicircular gear ring is fixed with an extrusion piece on the side away from the first gear.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention effectively solves the problems of easy cracking of cement prefabricated parts during demolding and low efficiency of manual removal through designs such as adjustable slots, buffering and shock absorption, automatic sliding and mold ejection; significantly improves the stability and safety of the demolding process, adapts to molds of various specifications, realizes automated operation, greatly reduces labor intensity, and improves production efficiency and finished product quality.

[0015] The present invention ensures that the first gear and the semicircular gear ring automatically disengage and resume meshing at a specific angle through sliding, compressing, locking and resetting actions, effectively avoiding excessive wear of the servo motor bearings due to speed difference, and significantly extending the service life of the equipment; achieving a smooth and reliable demoulding process, improving production efficiency and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the positioning pin, servo motor, support frame with rod and other components of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the limiting frame, the force storage spring, the guide plate and other components of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the extrusion piece, the bayonet pin and the linear spring and other components of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning frame, the second gear, the receiving plate and other components of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the closing frame, screw rod, helical gear ring and other components of the present invention.

[0022] Figure 7Schematic three-dimensional structure diagram of the turnover rack and the ejecting member of the present invention.

[0023] Wherein: 1: turnover device, 11: lifting frame, 12: positioning pin, 13: turnover rack, 14: servo motor, 15: first gear, 16: semi-circular gear ring, 17: rod-bearing support frame, 171: sliding member, 172: compression spring, 173: open support frame, 18: first return spring, 181: second return spring, 19: positioning frame, 191: receiving plate, 192: second gear, 193: rack, 194: receiving frame, 2: closing frame, 21: screw rod, 22: helical gear ring, 23: helical gear, 24: pressure spring, 25: ejecting member, 3: limiting frame, 31: energy storage spring, 32: guiding plate, 33: torsion spring, 34: pressing member, 35: retaining pin, 36: linear spring. Detailed implementation manners

[0024] The following further illustrates the technical solution with specific embodiments. It should be noted that: The words indicating directions such as up, down, left, and right mentioned herein are only in terms of the positions of the shown structures in the corresponding drawings. The serial numbers assigned to the components herein, for example: first, second, etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And as used in this application: connections, couplings, unless otherwise specified, all include direct and indirect connections (couplings).

[0025] Embodiment 1: A stable forming device for cement products, as Figure 1 and Figure 2 shown, includes a turnover device 1 as the load-bearing main body, and symmetrically distributed casters are installed at its bottom to facilitate the overall movement of the device and improve the operation flexibility. Symmetrically distributed lifting frames 11 are provided on the turnover device 1, and a turnover rack 13 is arranged between them. The turnover rack 13 is pivotally connected between the symmetrically distributed lifting frames 11 through a rotating shaft and can rotate around the rotating shaft under the drive of a driving device. Symmetrically distributed card slots are opened in the turnover rack 13, and the design of the card slots matches the size of the mold. The distance between the card slots is the same as the width of the mold, and the vertical height of the card slots matches the thickness of the mold edge to ensure that the mold edge can be firmly clamped into the card slots, thereby realizing the precise positioning and fixation of the mold; Symmetrically distributed supporting blocks are provided on each lifting frame 11 to limit the turning angle of the turnover rack 13. The driving device is a servo motor 14 respectively installed on the lifting frame 11, and its output shafts all pass through the adjacent lifting frame 11 and are key-connected with a first gear 15. The turnover rack 13 is fixedly connected with symmetrically distributed semi-circular gear rings 16 on one side close to the rotating shaft, and they are meshed with the adjacent first gears 15 to form a gear transmission system, whose function is to efficiently and precisely transmit the power of the servo motor 14 to the turnover rack 13 to realize precise turning actions.

[0026] When manufacturing cement precast components (such as trench covers, curb stones, etc.), first place the mold on the ground and pour in the cement slurry. After it solidifies, it is necessary to demold the cement precast component to take out the finished product. During demolding, push the turning device 1 along the direction of the mold until the mold is located between the casters. Since the protruding part of the mold edge is at the same height as the card slot on the turning frame 13, when the turning device 1 moves towards the mold, the mold edge will accurately fit into the card slot of the turning frame 13, achieving precise positioning and fixation.

[0027] Subsequently, start the servo motor 14. Its output shaft drives the first gear 15 to rotate through a coupling. With the help of the gear transmission system, the power is efficiently transmitted to the turning frame 13. The turning frame 13 will rotate 180° along the traveling direction with the rotating shaft as the center of rotation, and at the same time drive the mold and the cement precast component inside it to rotate 180°. At this time, the mold opening faces downward, and under the action of its own gravity, the cement precast component in the mold naturally falls to the ground, completing the demolding operation.

[0028] After demolding is completed, control the servo motor 14 to reverse, driving the first gear 15 to rotate in the reverse direction. Through the gear transmission system, drive the turning frame 13 to rotate in the reverse direction and return to the initial state, and the mold stuck in it also rotates and returns to the initial state accordingly. Finally, the staff can take out the mold from the turning frame 13 to complete the entire operation process.

[0029] In the prior art, when demolding cement precast components, a free-fall type dropping method is adopted. Due to the lack of an effective buffer protection mechanism, the cement precast components are extremely prone to cracking or damage during the process of hitting the ground. When the mold rotates 180°, the cement precast component directly falls to the ground under the action of its own gravity, and the high-speed impact force causes it to fail to land smoothly, thus causing quality problems. Therefore, during the demolding process of cement precast components, it is necessary to design a buffer protection mechanism to slow down the falling speed of the cement precast components and ensure that they land on the ground in a stable manner.

[0030] Specifically, on the side of the top of the turnover frame 13 far from the rotating shaft, symmetrically distributed rod - supported brackets 17 are fixedly connected, and on the side close to the rotating shaft, symmetrically distributed open - supported brackets 173 are fixedly connected. A positioning frame 19 is slidably connected between adjacent open - supported brackets 173 and rod - supported brackets 17. A first return spring 18 is connected between the positioning frame 19 and the adjacent rod - supported bracket 17. The first return springs 18 are respectively wound around the adjacent rod - supported brackets 17 to provide initial return force and stability. A sliding member 171 is slidably connected to the top of each open - supported bracket 173, and symmetrically distributed compression springs 172 are connected between it and the adjacent open - supported bracket 173. The compression springs 172 are respectively wound around the adjacent sliding members 171 to absorb impact force during the flipping process and achieve elastic reset. In addition, the positioning frame 19 slides up and down on the adjacent sliding member 171, and a second return spring 181 is connected between the positioning frame 19 and the adjacent sliding member 171. The second return springs 181 are respectively wound around the adjacent sliding members 171 to further enhance the overall return ability and improve the structural stability. A bearing plate 191 is provided between the two positioning frames 19 to directly bear the cement precast member and disperse the impact force during falling, preventing the precast member from being damaged due to impact.

[0031] When the turnover frame 13 rotates 180° around the rotating shaft in the traveling direction, components such as the rod - supported bracket 17, open - supported bracket 173, sliding member 171, positioning frame 19, and bearing plate 191 rotate synchronously. Since the open - supported bracket 173 is closer to the rotating shaft, the sliding member 171 will first contact the ground, and the force - bearing point is concentrated on the sliding member 171.

[0032] At this time, the sliding member 171 slides upward relative to the positioning frame 19 under the action of the ground, and at the same time, the compression spring 172 deforms and stores elastic potential energy. After the flipping ends, the force - bearing point gradually disperses from the sliding member 171 to between the rod - supported bracket 17 and the open - supported bracket 173, and the rod - supported bracket 17 and the positioning frame 19 reach a force - balanced state. Under the elastic force of the compression spring 172, the sliding member 171 resets downward relative to the positioning frame 19, completing the shock - absorption and reset actions during the entire flipping process.

[0033] Furthermore, after the turnover frame 13 rotates 180°, the mold and the cement precast member inside it are flipped to a position with the opening facing downward. Under the action of its own gravity, the cement precast member naturally falls onto the bearing plate 191. During this process, the cement precast member drives the bearing plate 191 and the positioning frame 19 to move towards the ground, and the first return spring 18 and the second return spring 181 are compressed. Through the deformation of the springs, the falling speed of the cement precast member is effectively reduced, preventing it from being damaged due to hitting the ground.

[0034] After the precast cement component steadily falls onto the receiving plate 191, due to its large weight, manual removal is not only laborious and inefficient but also may increase potential safety hazards. Therefore, a semi-automatic device needs to be designed to assist manual labor in quickly removing or detaching it from the receiving plate 191 after the precast cement component has fallen steadily, so as to carry out subsequent demoulding operations.

[0035] As Figure 1 and Figure 5 shown, specifically, symmetrically distributed receiving frames 194 are fixedly connected to the mutually approaching sides of the positioning frames 19, and arc-shaped U-shaped card slots are provided inside them for realizing the steady rotation and positioning of the receiving plate 191. Among them: the side close to the rod support frame 17 is arranged with an upward opening for stably supporting the receiving plate 191 in the initial state; the side close to the opening support frame 173 is arranged with a downward opening for releasing the receiving plate 191 during flipping. The receiving plate 191 is rotatably connected and installed between the two positioning frames 19, and fixing columns are provided on its side close to the receiving frame 194, which are respectively clamped into the arc-shaped U-shaped card slots of the receiving frame 194 to ensure maintaining the correct position and posture in different working states.

[0036] In addition, symmetrically distributed second gears 192 are fixedly connected to the positioning frames 19, and racks 193 are fixedly connected to each opening support frame 173, and the two are meshed with each other to form a gear-rack 193 transmission system. When the precast cement component presses the receiving plate 191 and moves downward, the meshing action between the second gear 192 and the rack 193 drives the receiving plate 191 to rotate towards the traveling direction to an inclined state, thereby realizing the automatic sliding of the precast cement component.

[0037] When the positioning frame 19 is flipped 180° along with the flipping frame 13, the receiving frame 194 thereon is also flipped 180°. At this time, the side close to the rod support frame 17 has a downward opening, and the side close to the opening support frame 173 has an upward opening, and the fixing column of the receiving plate 191 is clamped into the receiving frame 194 with an upward opening to ensure its downward movement in a horizontal state. When the flipped receiving plate 191 is pressed and moves downward by the demoulded precast cement component, the second gear 192 moves downward accordingly and meshes with the rack 193, and drives the receiving plate 191 to rotate towards the traveling direction to contact the ground through the gear-rack 193 transmission system. At this time, the receiving plate 191 is inclined at a certain angle with the ground, and the precast cement component slides smoothly along its surface to the ground.

[0038] The staff can control the turning device 1 to move backward, so that the receiving plate 191 slowly detaches from the precast concrete component, ensuring that the precast concrete component lands on the ground in a stable manner. After the receiving plate 191 is separated from the precast concrete component, under the action of the elastic elements, the first return spring 18 and the second return spring 181, the positioning frame 19 drives the receiving plate 191 to move upward and reset. At the same time, through the meshing action of the second gear 192 and the rack 193, the receiving plate 191 rotates in the reverse direction and returns to the horizontal state, preparing for the next working cycle.

[0039] The bottom of the receiving plate 191 is provided with evenly distributed balls, which are used to reduce the friction between the precast concrete component and the receiving plate 191. When the receiving plate 191 is inclined at a certain angle, the balls can ensure that the precast concrete component slides smoothly to the ground.

[0040] During the production process of precast concrete components, since different specifications of precast concrete components require molds of different heights, the height of the protruding part of the mold edge is inconsistent with the height of the card slot on the turning frame 13 of the device. Therefore, it is necessary to design an adjustable device to adapt to molds of different heights, so as to ensure effective demoulding of various specifications of precast concrete components.

[0041] Specifically, each lifting frame 11 is installed on the turning device 1 through a sliding connection. There are evenly distributed jacks on it. Each lifting frame 11 is provided with a positioning pin 12, and the positioning pin 12 can be inserted into the jack to fix the position of the lifting frame 11. When the height of the protruding part of the mold edge is inconsistent with the height of the card slot on the turning frame 13, the positioning pin 12 is pulled out from the lifting frame 11, the lifting frame 11 is lifted upward, and the height of its inner card slot is adjusted to be the same as the height of the protruding part of the mold edge. Then the positioning pin 12 is inserted into the corresponding jack to lock the position of the lifting frame 11.

[0042] During the flipping and demoulding process of the precast concrete component, since the two ends of the card slot of the turning frame 13 are open, although it is convenient for the protruding part of the mold edge to enter the card slot, when it is flipped to 90°, the card slot is in a vertical state, and the mold and the precast concrete component are likely to slide along the card slot due to their own gravity. This will cause the mold to be detached in advance before reaching the demoulding angle, resulting in demoulding failure and increasing potential safety hazards. Therefore, it is necessary to design a blocking mechanism to ensure that the mold is always firmly stuck in the card slot during the process of the turning frame 13 driving the mold to flip.

[0043] Such as Figure 6 and Figure 7As shown in the figure, specifically, symmetrically distributed screw rods 21 are rotatably connected to the turning frame 13, and a closing frame 2 is configured between them through a threaded connection. The closing frame 2 can slide up and down within the turning frame 13. The ends of each screw rod 21 are fixedly connected with bevel gears 23, and on one side of each lifting frame 11 close to the screw rod 21, an arc-shaped bevel gear ring 22 is fixedly connected. The bevel gear ring 22 meshes with the adjacent bevel gear 23 to achieve the transmission function.

[0044] As described above, when the turning frame 13 turns towards the traveling direction, the screw rod 21 and the bevel gear 23 turn synchronously. Due to the meshing relationship between the bevel gear 23 and the bevel gear ring 22, the bevel gear 23 will drive the screw rod 21 to rotate, thereby driving the closing frame 2 to move downward through screw thread transmission, and then closing the opening of the card slot near the rotating shaft. In this way, during the process of the turning frame 13 driving the mold to turn, the mold is always firmly stuck in the card slot, effectively avoiding the detachment situation caused by the gravity effect, and ensuring the safety and reliability of the demoulding operation. Similarly, when the turning frame 13 turns back and resets in the reverse direction, the bevel gear 23 will drive the screw rod 21 to rotate in the reverse direction, thereby driving the closing frame 2 to move upward and reset through screw thread transmission, and the opening of the card slot near the rotating shaft is opened.

[0045] After the cement precast is demoulded, the mold is still fixed in the turning frame 13 due to the card slot design and needs to be manually removed. This process not only consumes time and effort but also severely restricts the work efficiency. Therefore, it is urgent to design an automatic blanking mechanism that can automatically push the mold out of the card slot after demoulding is completed, so as to realize continuous demoulding operation, improve production efficiency and reduce manual intervention.

[0046] Specifically, symmetrically distributed ejecting members 25 are slidably connected to the turning frame 13, and a pressure spring 24 with an elastic reset function is connected between each of them and the turning frame 13. The pressure spring 24 is wound around the turning frame 13. The ejecting members 25 slide in the adjacent card slots respectively and can displace under the action of an external force, and at the same time rely on the elastic force of the pressure spring 24 to achieve the automatic reset function.

[0047] When the turning device 1 is pushed along the direction of the mold, the edge of the mold will accurately embed into the card slot of the turning frame 13. As the turning device 1 is continuously pushed forward, the edge of the mold abuts against the ejecting member 25, causing the ejecting member 25 to slide in the opposite direction of the traveling direction relative to the card slot, and at the same time the pressure spring 24 undergoes elastic deformation due to the force and stores potential energy.

[0048] When the flipping frame 13 completes the reverse flipping and resetting, the closing frame 2 moves upward, driving the slot opening to open. According to the above, the flipping device 1 is pulled back to make the receiving plate 191 slowly separate from the cement precast part. In this process, a sufficient distance is formed between the flipping device 1 and the demoulded cement precast part. Under this condition, the pressure spring 24 releases its elastic force, driving the ejection member 25 to automatically reset along the slot, and simultaneously pushes the mold out of the slot of the flipping frame 13, thereby realizing the automatic separation of the mold.

[0049] This embodiment effectively solves the problems of easy cracking of cement precast parts during demoulding and low efficiency of manual removal through designs such as adjustable slots, buffering and shock absorption, automatic sliding and mold ejection; significantly improves the stability and safety of the demoulding process, adapts to molds of various specifications, realizes automated operation, greatly reduces labor intensity, and improves production efficiency and finished product quality.

[0050] Embodiment 2: During the production of cement precast parts, due to the heavy weight of the precast parts, when the turning frame 13 turns over in the direction of travel, the mold stuck therein and the cement precast parts inside will tend to fall due to their own gravity. In particular, when the turning angle of the turning frame 13 exceeds 90°, the mold and the precast parts will turn over quickly under the action of gravity acceleration, and the turning speed may be much higher than the rotation speed of the servo motor 14. This speed difference will cause the meshing state between the first gear 15 and the semicircular gear ring 16 in the transmission system to change, thereby accelerating the wear of the bearing of the servo motor 14. Therefore, a protection mechanism needs to be designed to avoid the problem of excessive wear of the bearings caused by the inconsistent rotation speeds of the first gear 15 and the semicircular gear ring 16, so as to ensure smooth and reliable operation of the equipment.

[0051] like Figure 3 and Figure 4 As shown, specifically, each lifting frame 11 is slidably connected with a limiting frame 3 on the side close to the first gear 15, which is used to drive the first gear 15 to move under specific conditions to adjust its meshing state with the semicircular gear ring 16, and a force storage spring 31 is connected between the limiting frame 3 and the adjacent lifting frame 11, and the force storage spring 31 is respectively wound around the adjacent lifting frame 11 to play a buffering and resetting role; a bayonet is opened on the limiting frame 3, and the first gear 15 is respectively located in the adjacent bayonet, and the linkage between the first gear 15 and the limiting frame 3 is realized through the bayonet.

[0052] In addition, the flipping device 1 is slidably connected with a latch 35 on the side close to the first gear 15, and a linear spring 36 is connected between it and the flipping device 1. The linear springs 36 are respectively wound around the adjacent latches 35, and the elastic characteristics of the linear springs 36 are used to realize the reset and locking functions of the latch 35; the latch 35 is provided with an inclined surface on the side close to the limiting frame 3, so as to guide the limiting frame 3 to move inward or outward when subjected to force.

[0053] At the same time, each semicircular gear ring 16 is rotatably connected to a guide plate 32, and a torsion spring 33 is connected between it and the adjacent semicircular gear ring 16. The torsion springs 33 are respectively wound around the adjacent semicircular gear rings 16 to ensure that the guide plate 32 can be reset; each semicircular gear ring 16 is fixedly connected to an extrusion piece 34 on the side away from the first gear 15, which is used to push the latch 35 to achieve unlocking.

[0054] When the servo motor 14 drives the flip frame 13 to flip in the direction of travel by using the gear transmission system composed of the first gear 15 and the semicircular gear ring 16, the semicircular gear ring 16 will drive the guide plate 32 and the extrusion member 34 to rotate. When the flip frame 13 flips to more than 90 degrees, the guide plate 32 contacts the limiting frame 3 and pushes the limiting frame 3 inward, so that it slides inward along the sliding connection path. Since the first gear 15 is embedded in the bayonet of the limiting frame 3, the inward movement of the limiting frame 3 drives the first gear 15 to move inward, so that the first gear 15 and the semicircular gear ring 16 are offset, and the two are out of meshing state, and at the same time, the storage spring 31 is compressed to store energy.

[0055] During this process, the inwardly moving limit frame 3 squeezes the inclined surface adjacent to the latch 35, pushing the latch 35 to slide upward, causing the linear spring 36 to undergo elastic deformation. After the limit frame 3 passes over the latch 35, under the elastic force of the linear spring 36, the latch 35 slides downward to reset and hooks the limit frame 3, locking its inward movement state, ensuring that the first gear 15 and the semicircular gear ring 16 remain disengaged. At this time, the center of gravity of the flip frame 13 has shifted in the direction of travel. Under the gravity of the cement prefabricated part itself, the flip frame 13 and the semicircular gear ring 16 continue to deflect in the direction of travel to reach the demoulding angle. Finally, the flip frame 13 and the mold inside it are in a horizontal state and are supported by the ground through the sliding member 171 and the rod support frame 17.

[0056] At the same time, the extrusion member 34 rotates to contact the latch 35, pushing the latch 35 to slide upward again, unlocking the limit frame 3, and the linear spring 36 deforms again. Under the elastic force of the storage spring 31, the limit frame 3 drives the first gear 15 to move outward and reset, and the first gear 15 resumes meshing with the semicircular gear ring 16.

[0057] After the demoulding is completed, the first gear 15 rotates in the reverse direction and drives the turning frame 13 to reverse and reset through the semi-circular gear ring 16. At the same time, the extrusion member 34 and the guide plate 32 also reverse and turn accordingly. After the extrusion member 34 is separated from the pin 35, under the elastic force of the linear spring 36, the pin 35 slides downward to reset. When the reversely turned guide plate 32 contacts the limiting frame 3, the limiting frame 3 resists the guide plate 32 to make it rotate inward, and the torsion spring 33 is twisted to store energy. When the guide plate 32 passes over the limiting frame 3, under the elastic force of the torsion spring 33, the guide plate 32 reversely rotates to reset, and the system returns to the initial state.

[0058] In this embodiment, through sliding, compression, locking and resetting actions, it is ensured that the first gear 15 and the semi-circular gear ring 16 automatically disengage and resume meshing at a specific angle, effectively avoiding excessive wear of the bearings of the servo motor 14 caused by the speed difference, significantly prolonging the service life of the equipment; realizing a stable and reliable demoulding process, improving production efficiency and reducing maintenance costs.

[0059] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A stable forming device for cement products, including a turning device (1), which is installed with symmetrically distributed casters at its bottom, and is characterized in that: The turning device (1) is provided with symmetrically distributed lifting frames (11), and a turning frame (13) is arranged between them. The turning frame (13) is pivotally connected between the symmetrically distributed lifting frames (11) through a rotating shaft. Symmetrically distributed clamping grooves are formed in the turning frame (13), and the design of the clamping grooves matches the size of the mold. Symmetrically distributed supporting blocks are provided on each lifting frame (11) for limiting the turning angle of the turning frame (13). Servo motors (14) are respectively installed on the lifting frames (11), and their output shafts penetrate out of the adjacent lifting frames (11) and are key-connected with first gears (15). Symmetrically distributed semi-circular gear rings (16) are fixedly connected to one side of the turning frame (13) close to the rotating shaft, and they mesh with the adjacent first gears (15).

2. The stabilizing and forming device for cement products according to claim 1, characterized in that: On the top of the turning frame (13), symmetrically distributed rod-bearing supports (17) are fixedly connected to the side far from the rotating shaft, and symmetrically distributed open supports (173) are fixedly connected to the side close to the rotating shaft. Positioning frames (19) are slidably connected between the adjacent open supports (173) and the rod-bearing supports (17). First return springs (18) are connected between the positioning frames (19) and the adjacent rod-bearing supports (17). The first return springs (18) are respectively wound around the adjacent rod-bearing supports (17). Sliding members (171) are slidably connected to the tops of the open supports (173), and symmetrically distributed compression springs (172) are connected between them and the adjacent open supports (173). The compression springs (172) are respectively wound around the adjacent sliding members (171). The positioning frames (19) slide up and down on the adjacent sliding members (171). Second return springs (181) are connected between the positioning frames (19) and the adjacent sliding members (171), and they are respectively wound around the adjacent sliding members (171). A bearing plate (191) is arranged between the two positioning frames (19).

3. A stable forming device for cement products according to claim 2, characterized in that: Symmetrically distributed bearing frames (194) are fixedly connected to the sides of the positioning frames (19) close to each other, and arc-shaped U-shaped clamping grooves are arranged inside them. The bearing plate (191) is rotatably connected and installed between the two positioning frames (19). Fixing columns are arranged on the sides of the bearing plate (191) close to the bearing frames (194) and are respectively clamped into the arc-shaped U-shaped clamping grooves of the bearing frames (194). Symmetrically distributed second gears (192) are fixedly connected to the positioning frames (19), and racks (193) are fixedly connected to the open supports (173). The two mesh with each other to form a gear-rack (193) transmission system.

4. A stable forming device for cement products according to claim 3, characterized in that: Uniformly distributed balls are arranged at the bottom of the bearing plate (191).

5. A stable forming device for cement products according to claim 4, characterized in that: Each lifting frame (11) is installed on the turning device (1) through a sliding connection. Uniformly distributed jacks are arranged on it. Positioning pins (12) are provided on each lifting frame (11), and the positioning pins (12) can be inserted into the jacks to fix the position of the lifting frame (11).

6. A stable forming device for cement products according to claim 5, characterized in that: The flip frame (13) is provided with symmetrically distributed screw rods (21) through a rotational connection, and a closed frame (2) is arranged between them through a threaded connection. The end of each screw rod (21) is fixedly connected with a bevel gear (23). Each lifting frame (11) is fixedly connected with an arc-shaped helical gear ring (22) on one side close to the screw rod (21), and the helical gear ring (22) and the adjacent helical gear (23) are meshed with each other to realize the transmission function.

7. A stable forming device for cement products according to claim 6, characterized in that: The flip frame (13) is provided with symmetrically distributed pop-up members (25) through a sliding connection, and a pressure spring (24) with an elastic reset function is connected between the pop-up members and the flip frame (13). The pressure spring (24) is wound around the flip frame (13), and the pop-up members (25) slide in adjacent card slots respectively.

8. A stable forming device for cement products according to claim 7, characterized in that: Each lifting frame (11) is slidably connected to a limiting frame (3) on a side close to the first gear (15), and a force storage spring (31) is connected between the limiting frame (3) and the adjacent lifting frame (11), and the force storage spring (31) is respectively wound around the adjacent lifting frame (11), and a bayonet is opened on the limiting frame (3), and the first gear (15) is respectively located in the adjacent bayonet; the flipping device (1) is slidably connected to a bayonet pin (35) on a side close to the first gear (15), and a bayonet pin (35) is provided between the flapping device (1) and the flapping device (1). A linear spring (36) is connected, and the linear spring (36) is respectively wound around an adjacent bayonet (35), and the bayonet (35) is provided with an inclined surface on the side close to the limiting frame (3); each semicircular gear ring (16) is rotatably connected to a guide plate (32), and a torsion spring (33) is connected between the semicircular gear ring (16) and the adjacent semicircular gear ring (16), and the torsion spring (33) is respectively wound around the adjacent semicircular gear ring (16); each semicircular gear ring (16) is fixedly connected to an extrusion piece (34) on the side away from the first gear (15).

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