A slipform apparatus and method for the manufacture of concrete precast elements

Abstract

The present application relates to concrete pouring forming equipment technical field, disclose a kind of pouring forming equipment and the forming method for concrete prefabricated part processing, including rack, portal, suspension roller shaft and pipe making mould, the rack and portal are arranged in parallel, and the distance between rack and portal is fixed;The pouring forming equipment, by setting control shaft sleeve, rotary drive mechanism and shaft rod translation mechanism, so that the height and inclination angle of suspension roller cannot be changed while having rotation and linear movement function, so that after lifting pipe making mould, can first let the suspension roller shaft that cannot shake greatly be extracted from pipe making mould inside, to avoid when moving out pipe making mould, suspension roller shaft and cement pipe inner wall contact collision, simultaneously, by setting shaft rod cleaning mechanism, under the cooperation of rotary drive mechanism, in the process that suspension roller shaft is away from portal, surface will be wiped by cleaning brush plate, to avoid that concrete is adhered on the surface of suspension roller shaft.

Description

Technical Field

[0001] This invention relates to the field of concrete casting and molding equipment technology, specifically to a casting and molding equipment and a molding method for processing precast concrete components. Background Technology

[0002] Based on their function, precast concrete components can be divided into building structural components, building envelope components, building foundation components, and municipal engineering components. Among them, municipal engineering components include precast curbs and precast drainage pipes. Precast drainage pipes are used in urban drainage systems and building drainage projects, and can transport rainwater or sewage to designated treatment sites.

[0003] Chinese patent CN112622023B discloses a method for molding and manufacturing precast reinforced concrete components. By setting up a heating and drying device, the molding speed of cement pipes is increased. However, during the molding of cement pipes, heating can lead to uneven heating between the surface and the inside of the cement pipe, resulting in a large temperature difference between the inside and outside. This makes the surface of the cement pipe prone to cracking. At the same time, excessively high temperatures can cause the moisture inside the concrete to evaporate rapidly, forming more and larger pores, damaging the microstructure of the concrete, and reducing its density. In order to ensure the frequency of equipment use and to achieve good molding results for cement pipes, the prior art widely adopts a suspended roller cement pipe making machine to produce precast cement pipes.

[0004] Chinese patent CN110497518B discloses a suspended roller type cement pipe making machine. The device uses a mold fitted on a suspended roller shaft, and through the rotation and extrusion force of the suspended roller shaft, the concrete is evenly distributed and compacted on the inner side of the mold. After the cement pipe is formed, the mold can be easily removed, and the cement pipe can be cured in the mold until it reaches the demolding strength before the mold is removed for demolding. The device uses a pressure plate to press down on the end of the drive shaft away from the suspension roller shaft, causing the suspension roller shaft to shift upwards at a certain angle with the shaft support as the fulcrum, thus preventing the end of the suspension roller shaft near the gantry from drooping downwards due to gravity. However, due to the weight limitations of the mold and cement pipe, a crane is usually used to lift the mold and cement pipe off the suspension roller shaft. When moving the mold, the swaying of the crane cable may cause the mold to rotate to a certain extent, causing the end of the suspension roller shaft to contact the inner wall of the cement pipe, thereby damaging the flatness of the inner wall of the cement pipe. In addition, during the use of the suspension roller cement pipe making machine, cement will stick to the suspension roller shaft. After the cement adheres to and dries on the suspension roller shaft, it will adversely affect the working performance of the suspension roller shaft. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a casting and molding equipment and a molding method for processing precast concrete components. It has advantages such as avoiding collision between the suspension roller shaft and the inner wall of the cement pipe when removing the mold and cleaning the suspension roller shaft, thus solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0009] A casting molding device includes a frame, a gantry, a suspension roller shaft, and a tube-making mold. The frame and the gantry are arranged in parallel, and the distance between the frame and the gantry is fixed. One end of the suspension roller shaft is inserted into one side of the gantry, and a fixed toothed disc is fixedly installed at the other end of the suspension roller shaft. The tube-making mold is sleeved on the suspension roller shaft. The frame is also provided with a control bushing, a rotary drive mechanism, a shaft translation mechanism, and a shaft cleaning mechanism.

[0010] The control bushing is rotatably mounted on the frame and sleeved on the outside of the suspension roller shaft, so that the height of the suspension roller shaft cannot be changed. The rotary drive mechanism is used to drive the control bushing to rotate. The shaft translation mechanism is used to control the suspension roller shaft to slide inside the control bushing. The shaft cleaning mechanism includes a turntable, a cleaning brush plate, and a movable toothed disc. The turntable is rotatably mounted on the frame and sleeved on the outside of the suspension roller shaft. The cleaning brush plate is slidably mounted on the turntable. The movable toothed disc is rotatably mounted on the suspension roller shaft. When the suspension roller shaft moves away from the gantry, the movable toothed disc pulls the cleaning brush plate to slide, so that the cleaning brush plate contacts the surface of the suspension roller shaft.

[0011] When the suspension roller shaft contacts the gantry, the control bushing contacts and drives the fixed gear disc, and there is a gap between the movable gear disc and the control bushing.

[0012] When the suspension roller shaft moves away from the gantry, the suspension roller shaft drives the movable toothed disc to approach the control bushing, so that the movable toothed disc contacts the control bushing and transmits power.

[0013] Preferably, the rotary drive mechanism includes a bushing rotary drive motor and rotary drive pulleys. The bushing rotary drive motor is fixedly mounted on the upper surface of the frame. A positioning shaft seat is rotatably mounted on the outer surface of the control bushing. The positioning shaft seat is fixedly mounted on the lower surface of the frame. Rotary drive pulleys are fixedly mounted on both the drive end of the bushing rotary drive motor and the outer surface of the control bushing. The rotary drive pulleys are connected by belt drive.

[0014] Preferably, the control bushing includes a central sliding sleeve, a shaft rotation drive internal gear ring, and a brush plate rotation drive internal gear ring. The central sliding sleeve is sleeved on the outer surface of the suspension roller shaft. The shaft rotation drive internal gear ring is fixedly installed at the end of the central sliding sleeve away from the gantry. The brush plate rotation drive internal gear ring is fixedly installed at the end of the central sliding sleeve close to the gantry. The fixed gear disc is adapted and engaged with the shaft rotation drive internal gear ring. The movable gear disc is adapted and engaged with the brush plate rotation drive internal gear ring. When the fixed gear disc is inserted into the interior of the shaft rotation drive internal gear ring, the movable gear disc is located outside the brush plate rotation drive internal gear ring.

[0015] Preferably, the shaft translation mechanism includes a limiting shaft seat, an internally threaded tube, a threaded rod, a shaft translation drive motor, a short shaft, and a pull plate. The limiting shaft seat is fixedly installed on the lower surface of the frame, the internally threaded tube is rotatably installed inside the limiting shaft seat, the threaded rod is threadedly connected to the internally threaded tube, the shaft translation drive motor is fixedly installed on the upper surface of the frame, and transmission pulleys are fixedly installed on the drive end of the shaft translation drive motor and the outer surface of the internally threaded tube. The transmission pulleys are connected by belt drive. The short shaft is fixedly installed on the end of the fixed gear plate away from the suspension roller shaft, one end of the pull plate is fixedly connected to the end of the threaded rod away from the gantry, and the other end of the pull plate is rotatably connected to the end of the short shaft.

[0016] Preferably, one end of the threaded rod is fixedly installed with an overlapping block, and the upper end of the gantry is fixedly installed with a support, the support having an overlapping groove adapted to the overlapping block.

[0017] Preferably, the shaft cleaning mechanism further includes a fixed shaft seat and a rotating plate. The fixed shaft seat is fixedly installed on the lower surface of the frame and rotatably installed outside the turntable. The two ends of the rotating plate are rotatably connected to the cleaning brush plate and the movable toothed disc, respectively. The turntable has a sliding hole. The cleaning brush plate has bristles at one end facing the suspension roller shaft, and a slider is fixedly installed at the other end of the cleaning brush plate away from the rotating plate. The slider is slidably connected to the sliding hole.

[0018] Preferably, the movable toothed disc has spring grooves arranged in a ring array on its central hole. A return spring is fixedly installed on the top of the spring groove, and a plug is fixedly installed on the end of the return spring. An annular groove is formed on the surface of the suspension roller shaft. The cross-section of the annular groove is set as an isosceles trapezoid, and the width of the annular groove is smaller than the width of the central sleeve. The plug is adapted to be inserted into the annular groove. When the plug is inserted into the inside of the annular groove, there is a gap between the bristles on the inner side of the cleaning brush plate and the surface of the suspension roller shaft.

[0019] Preferably, a ball bearing is installed at the end of the insert block away from the return spring.

[0020] Preferably, the gantry has a slot on one side wall facing the suspension roller shaft, and a connector is rotatably installed on one end of the suspension roller shaft near the gantry, the connector being adapted to the slot for insertion.

[0021] This invention also discloses a molding method for processing precast concrete components, the specific steps of which are as follows:

[0022] The suspension roller shaft is driven to rotate by a rotary drive mechanism, and then cement is conveyed into the inside of the pipe-making mold by a cement conveying device. At the same time, the continuous rotation of the suspension roller shaft drives the pipe-making mold to rotate and rolls the cement inside the pipe-making mold.

[0023] After the cement pipe inside the pipe-making mold is formed, the operation of the rotation drive mechanism is stopped, and the pipe-making mold is pulled up by a crane, so that there is a gap between the cement pipe inside the pipe-making mold and the suspension roller shaft.

[0024] The suspension roller shaft is controlled to move out of the tube-making mold by the shaft translation mechanism, and then the tube-making mold is completely moved out by the crane;

[0025] During the process of the shaft translation mechanism controlling the suspension roller shaft to move out of the tube-making mold, the movable gear plate contacts and drives the control bushing, causing the suspension roller shaft to contact the cleaning brush plate. Then, the cleaning brush plate is driven to rotate by the rotary drive mechanism, so that the cleaning brush plate cleans the moving suspension roller shaft.

[0026] (III) Beneficial Effects

[0027] Compared with the prior art, the present invention provides a casting and molding equipment and a molding method for processing precast concrete components, which has the following beneficial effects:

[0028] 1. This casting and molding equipment, by setting up a control bushing, a rotary drive mechanism, and a shaft translation mechanism, allows the suspended roller to have rotation and linear movement functions while maintaining the height and tilt angle of the roller. This enables the suspended roller shaft, which does not sway significantly, to be pulled out of the pipe-making mold after the mold is lifted, thus avoiding contact and collision between the roller shaft and the inner wall of the cement pipe when it is removed from the mold. At the same time, by setting up a shaft cleaning mechanism, with the cooperation of the rotary drive mechanism, the surface of the suspended roller shaft is wiped by a cleaning brush as it moves away from the gantry, thus preventing concrete from sticking to the surface of the roller shaft.

[0029] 2. This casting and molding equipment, through the setting of a central sliding sleeve, a shaft rotation driving an internal gear ring, a brush plate rotation driving an internal gear ring, a fixed gear disc, and a movable gear disc, when the suspension roller shaft contacts the gantry, the shaft rotation drives the internal gear ring and the fixed gear disc to engage and transmit power, thereby driving the pipe-making mold to rotate and roll and press the concrete on the inner wall of the pipe mold through friction. When the suspension roller shaft moves away from the gantry, the brush plate rotation drives the internal gear ring and the movable gear disc to engage and transmit power, causing the turntable and cleaning brush plate to rotate accordingly, thereby enabling the cleaning brush plate to fully wipe the suspension roller shaft.

[0030] 3. This casting and molding equipment, by setting a spring groove, a return spring and an insert block on the movable toothed disc, and opening an annular groove on the suspension roller shaft, allows the movable toothed disc to rotate around the annular groove. When the suspension roller shaft moves away from the gantry, the movable toothed disc abuts against one end of the central sleeve, and the return spring is compressed and contracts, causing the insert block to retract into the spring groove. The movable toothed disc can slide on the suspension roller shaft, so that when the suspension roller shaft moves away from the gantry, it can not only drive the cleaning brush to clean the surface of the suspension roller shaft, but also avoid the movement of the suspension roller shaft being restricted by the movable toothed disc. Attached Figure Description

[0031] Figure 1 This is one of the three-dimensional structural schematic diagrams of the casting and molding equipment of the present invention;

[0032] Figure 2 This is the second three-dimensional structural schematic diagram of the casting and molding equipment of the present invention;

[0033] Figure 3 This is one of the three-dimensional structural sectional views of the casting and molding equipment of the present invention;

[0034] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the local structure at point A;

[0035] Figure 5 For the present invention Figure 3 Enlarged schematic diagram of the local structure at point B;

[0036] Figure 6 For the present invention Figure 3 A magnified view of the local structure at point C;

[0037] Figure 7 This is the third three-dimensional structural schematic diagram of the casting and molding equipment of the present invention;

[0038] Figure 8 This is a second three-dimensional structural sectional view of the casting and molding equipment of the present invention;

[0039] Figure 9 For the present invention Figure 8 A magnified schematic diagram of the local structure at point D.

[0040] In the picture:

[0041] 1. Frame; 11. Positioning shaft seat;

[0042] 2. Portal frame; 21. Support; 22. Overlap groove; 23. Slot;

[0043] 3. Suspension roller shaft; 31. Fixed toothed disc; 32. Annular groove; 33. Connector;

[0044] 4. Control bushing; 41. Central sliding sleeve; 42. Shaft rotation drive internal gear ring; 43. Brush plate rotation drive internal gear ring;

[0045] 5. Rotary drive mechanism; 51. Shaft sleeve rotary drive motor; 52. Rotary drive pulley;

[0046] 6. Shaft translation mechanism; 61. Limiting bearing; 62. Internally threaded tube; 63. Threaded rod; 64. Shaft translation drive motor; 65. Transmission pulley; 66. Short shaft; 67. Pull plate; 68. Overlap block;

[0047] 7. Shaft cleaning mechanism; 71. Turntable; 711. Sliding hole; 72. Cleaning brush plate; 721. Slider; 73. Movable gear plate; 731. Spring groove; 732. Return spring; 733. Insert block; 734. Ball bearing; 74. Fixed shaft seat; 75. Rotating plate;

[0048] 8. Tube making molds. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0050] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 7 The present invention provides a casting molding device, including a frame 1, a gantry 2, a suspension roller shaft 3, and a tube-making mold 8. The frame 1 and the gantry 2 are arranged in parallel and the distance between the frame 1 and the gantry 2 is fixed. One end of the suspension roller shaft 3 is inserted into one side of the gantry 2, and a fixed toothed disc 31 is fixedly installed on the other end of the suspension roller shaft 3. The tube-making mold 8 is sleeved on the suspension roller shaft 3. The frame 1 is also provided with a control bushing 4, a rotary drive mechanism 5, a shaft translation mechanism 6, and a shaft cleaning mechanism 7.

[0051] The control bushing 4 is rotatably mounted on the frame 1 and is sleeved on the outside of the suspension roller shaft 3, so that the height of the suspension roller shaft 3 cannot be changed. The rotation drive mechanism 5 is used to drive the control bushing 4 to rotate. The shaft translation mechanism 6 is used to control the suspension roller shaft 3 to slide inside the control bushing 4. The shaft cleaning mechanism 7 includes a turntable 71, a cleaning brush plate 72 and a movable toothed disc 73. The turntable 71 is rotatably mounted on the frame 1 and is sleeved on the outside of the suspension roller shaft 3. The cleaning brush plate 72 is slidably mounted on the turntable 71. The movable toothed disc 73 is rotatably mounted on the suspension roller shaft 3. When the suspension roller shaft 3 moves away from the gantry 2, the movable toothed disc 73 pulls the cleaning brush plate 72 to slide, so that the cleaning brush plate 72 contacts the surface of the suspension roller shaft 3.

[0052] When the suspension roller shaft 3 contacts the gantry 2, the control bushing 4 contacts and drives the fixed gear disk 31, and there is a gap between the movable gear disk 73 and the control bushing 4.

[0053] When the suspension roller shaft 3 moves away from the gantry 2, the suspension roller shaft 3 drives the movable toothed disc 73 to approach the control bushing 4, so that the movable toothed disc 73 contacts the control bushing 4 and drives the transmission.

[0054] As can be seen from the above, this casting and molding equipment, by setting up a control bushing 4, a rotary drive mechanism 5, and a shaft translation mechanism 6, allows the suspended roller shaft 3 to maintain its height and tilt angle while simultaneously possessing the functions of rotation and linear movement. This enables the suspended roller shaft 3, which will not sway significantly, to be pulled out of the pipe-making mold 8 after it is lifted, thus avoiding contact and collision between the suspended roller shaft 3 and the inner wall of the cement pipe when it is removed from the pipe-making mold 8. At the same time, by setting up a shaft cleaning mechanism 7, with the cooperation of the rotary drive mechanism 5, as the suspended roller shaft 3 moves away from the gantry 2, the movable toothed disc 73 pulls the cleaning brush plate 72 to slide, thus cleaning the... The cleaning brush 72 contacts the surface of the suspension roller 3, allowing the surface of the suspension roller 3 to be wiped by the cleaning brush 72. This prevents concrete from sticking to the surface of the suspension roller 3. This method also eliminates the need for special machine-stopping cleaning equipment, and cleaning can be completed quickly during the removal of the pipe mold 8. In addition, in this cleaning method, only the part of the suspension roller 3 surface that contacts the cleaning brush 72 is cleaned. Compared with the method of cleaning the suspension roller 3 with a non-fixed brush during the rotation of the suspension roller 3, this method can prevent the centrifugal force of the suspension roller 3 from throwing loosely adhered concrete into the cement pipe.

[0055] When using this casting and molding equipment, the rotating drive mechanism 5 drives the suspension roller shaft 3 to rotate, and then the cement conveying equipment is used to transport cement into the inside of the pipe forming mold 8. At the same time, the continuous rotation of the suspension roller shaft 3 drives the pipe forming mold 8 to rotate and roll the cement inside the pipe forming mold 8. After the cement pipe inside the pipe forming mold 8 is formed, the operation of the rotating drive mechanism 5 is stopped, and the pipe forming mold 8 is lifted upward by the crane, so that there is a gap between the cement pipe inside the pipe forming mold 8 and the suspension roller shaft 3. The shaft translation mechanism 6 controls the suspension roller shaft 3 to move out of the inside of the pipe forming mold 8, and then the crane completely moves the pipe forming mold 8 out. During the process of the shaft translation mechanism 6 controlling the suspension roller shaft 3 to move out of the inside of the pipe forming mold 8, the movable toothed disc 73 contacts and drives the control bushing 4, so that the suspension roller shaft 3 contacts the cleaning brush plate 72. Then the rotating drive mechanism 5 drives the cleaning brush plate 72 to rotate, so that the cleaning brush plate 72 cleans the moving suspension roller shaft 3.

[0056] The pipe-making mold 8 mentioned in this application is a mold used for casting and forming cement pipes in the prior art of a suspended roller cement pipe-making machine. Specifically, it consists of two semi-cylindrical molds spliced ​​and fixed together by locking components to form a complete circular pipe structure. During the pipe-making process, power is transmitted through the friction between the suspended roller shaft 3 and the tires and retaining rings at both ends of the pipe-making mold 8 (not shown in the attached drawings). When using a suspended roller cement pipe-making machine, a cement conveying device is usually set on one side of the frame 1 to transport concrete into the interior of the pipe-making mold 8. The cement conveying device can be a transmission belt structure that supports sliding insertion into the interior of the pipe-making mold 8, or any other conveying device that can disperse and transport concrete to different positions inside the pipe-making mold 8. In addition, since the pipe-making mold 8 itself is relatively heavy, and the weight increases after the concrete is poured inside, two lifting rings are usually installed on the outer surface of the pipe-making mold 8. After the cement pipe is formed, the pipe-making mold 8 is lifted by connecting the lifting rings with a crane. Example 2

[0057] like Figure 1 , Figure 2 and Figure 8 As shown, the difference between this embodiment and the above embodiment is that the rotary drive mechanism 5 includes a bushing rotary drive motor 51 and a rotary drive pulley 52. ​​The bushing rotary drive motor 51 is fixedly installed on the upper surface of the frame 1. A positioning shaft seat 11 is rotatably installed on the outer surface of the control bushing 4. The positioning shaft seat 11 is fixedly installed on the lower surface of the frame 1. The drive end of the bushing rotary drive motor 51 and the outer surface of the control bushing 4 are both fixedly installed with rotary drive pulleys 52. The rotary drive pulleys 52 are connected to each other by belt drive.

[0058] As can be seen from the above, since the rotary drive pulleys 52 are connected by belt transmission, when the rotary drive motor 51 drives the rotary drive pulley 52 installed on its drive end to rotate, the control bushing 4 rotates accordingly.

[0059] The gantry 2 has a slot 23 on one side wall facing the suspension roller shaft 3. The end of the suspension roller shaft 3 near the gantry 2 is rotatably mounted with a connector 33, which is adapted to be inserted into the slot 23.

[0060] As can be seen from the above, by setting the slot 23, when the connector 33 is inserted into the slot 23, the gantry 2 plays the role of supporting the end of the suspension roller shaft 3 away from the frame 1. Example 3

[0061] like Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 8 and Figure 9 As shown, the difference between this embodiment and the above embodiment is that the control sleeve 4 includes a central sliding sleeve 41, a shaft rotation drive internal gear ring 42, and a brush plate rotation drive internal gear ring 43. The central sliding sleeve 41 is sleeved on the outer surface of the suspension roller shaft 3. The shaft rotation drive internal gear ring 42 is fixedly installed at the end of the central sliding sleeve 41 away from the gantry 2. The brush plate rotation drive internal gear ring 43 is fixedly installed at the end of the central sliding sleeve 41 close to the gantry 2. The fixed gear plate 31 is adapted and engaged with the shaft rotation drive internal gear ring 42. The movable gear plate 73 is adapted and engaged with the brush plate rotation drive internal gear ring 43. When the fixed gear plate 31 is inserted into the interior of the shaft rotation drive internal gear ring 42, the movable gear plate 73 is located outside the brush plate rotation drive internal gear ring 43.

[0062] As can be seen from the above, when the fixed toothed disc 31 is inserted into the inner toothed ring 42 of the shaft rotation drive, the suspension roller shaft 3 and the control bushing 4 rotate synchronously. When the movable toothed disc 73 is inserted into the inner toothed ring 43 of the brush plate rotation drive, the movable toothed disc 73 and the control bushing 4 rotate synchronously. Since the movable toothed disc 73 is located outside the inner toothed ring 43 of the brush plate rotation drive when the fixed toothed disc 31 is inserted into the inner toothed ring 42 of the shaft rotation drive, the fixed toothed disc 31 and the movable toothed disc 73 will not be controlled to rotate simultaneously by the control bushing 4.

[0063] The shaft translation mechanism 6 includes a limiting shaft seat 61, an internally threaded tube 62, a threaded rod 63, a shaft translation drive motor 64, a short shaft 66, and a pull plate 67. The limiting shaft seat 61 is fixedly installed on the lower surface of the frame 1. The internally threaded tube 62 is rotatably installed inside the limiting shaft seat 61. The threaded rod 63 is threadedly connected to the internally threaded tube 62. The shaft translation drive motor 64 is fixedly installed on the upper surface of the frame 1. Both the drive end of the shaft translation drive motor 64 and the outer surface of the internally threaded tube 62 are fixedly installed with transmission pulleys 65. The transmission pulleys 65 are connected to each other by belt drive. The short shaft 66 is fixedly installed on the end of the fixed gear disc 31 away from the suspension roller shaft 3. One end of the pull plate 67 is fixedly connected to the end of the threaded rod 63 away from the gantry 2, and the other end of the pull plate 67 is rotatably connected to the end of the short shaft 66.

[0064] As can be seen from the above, since the suspension roller shaft 3 can only move and rotate linearly along its length, and the threaded rod 63 is threadedly connected to the inside of the internal threaded tube 62, and one end of the pull plate 67 is fixedly connected to the end of the threaded rod 63 away from the gantry 2, and the other end of the pull plate 67 is rotatably connected to the end of the short shaft 66, the threaded rod 63 can only move linearly along its length. Therefore, when the shaft translation drive motor 64 drives the internal threaded tube 62 to rotate, the threaded rod 63 moves linearly along its length. Furthermore, the threaded rod 63 pulls the fixed gear disk 31 to move through the pull plate 67, so that the suspension roller shaft 3 moves linearly along its length.

[0065] One end of the threaded rod 63 is fixedly installed with an overlapping block 68, and the upper end of the gantry 2 is fixedly installed with a support 21. The support 21 has an overlapping groove 22 that is adapted to the overlapping block 68.

[0066] As can be seen from the above, by setting the overlapping block 68 and the overlapping groove 22, one end of the threaded rod 63 can overlap above the gantry 2 during the pipe making process, thereby preventing the end of the threaded rod 63 that is far away from the internal threaded tube 62 from being suspended in the air for a long time, which would cause the threaded rod 63 to deform and be damaged. Example 4

[0067] like Figure 4 , Figure 5 and Figure 9 As shown, the difference between this embodiment and the above embodiment is that the shaft cleaning mechanism 7 further includes a fixed shaft seat 74 and a rotating plate 75. The fixed shaft seat 74 is fixedly installed on the lower surface of the frame 1 and is rotatably installed on the outside of the turntable 71. The two ends of the rotating plate 75 are rotatably connected to the cleaning brush plate 72 and the movable toothed disc 73, respectively. The turntable 71 is provided with a sliding hole 711. The cleaning brush plate 72 is provided with bristles at one end facing the suspension roller shaft 3, and a slider 721 is fixedly installed at the end of the cleaning brush plate 72 away from the rotating plate 75. The slider 721 is slidably connected to the sliding hole 711.

[0068] As can be seen from the above, when the movable toothed disc 73 moves away from the turntable 71, it pulls the rotating plate 75 to move, causing the cleaning brush plate 72 to move closer to the suspension roller shaft 3; when the movable toothed disc 73 moves closer to the turntable 71, the cleaning brush plate 72 moves away from the suspension roller shaft 3.

[0069] The movable toothed disc 73 has a central hole with spring grooves 731 arranged in a ring array. A return spring 732 is fixedly installed on the top of the spring groove 731, and an insert block 733 is fixedly installed on the end of the return spring 732. An annular groove 32 is formed on the surface of the suspension roller shaft 3. The cross-section of the annular groove 32 is set as an isosceles trapezoid, and the width of the annular groove 32 is smaller than the width of the central sliding sleeve 41. The insert block 733 is adapted to be inserted into the annular groove 32. When the insert block 733 is inserted into the inside of the annular groove 32, there is a gap between the bristles on the inner side of the cleaning brush plate 72 and the surface of the suspension roller shaft 3.

[0070] As can be seen from the above, when the insert 733 is inserted into the annular groove 32, the movement of the suspension roller shaft 3 will drive the movable toothed disk 73 to move, causing the movable toothed disk 73 to move closer to or further away from the turntable 71. When the suspension roller shaft 3 continues to move, and the slider 721 is restricted by the sliding hole 711 and cannot continue to slide, under the pressure of the annular groove 32, the insert 733 is pulled out of the annular groove 32 and the reset spring 732 is compressed, causing the insert 733 to enter the interior of the spring sliding groove 731. In this embodiment, when the suspension roller shaft 3 moves from a state of contacting the gantry 2 at one end to a direction away from the gantry 2, the movable toothed disk 73 gradually moves to the brush plate rotation drive inner toothed ring 43. Inside the machine, the movable toothed disc 73 is in transmission with the control sleeve 4. When the suspension roller shaft 3 continues to move away from the gantry 2, the side of the insert 733 is pressed and dislodged from the annular groove 32. At this time, the movable toothed disc 73 can no longer follow the suspension roller shaft 3. When the suspension roller shaft 3 moves from the state away from the gantry 2 to the direction of approaching the gantry 2, the annular groove 32 gradually approaches the insert 733, so that the insert 733 is reinserted into the annular groove 32 under the pressure of the return spring 732. When the suspension roller shaft 3 continues to approach the gantry 2, the annular groove 32 pushes the insert 733, so that the movable toothed disc 73 approaches the turntable 71, thereby making the cleaning brush plate 72 move away from the suspension roller shaft 3.

[0071] A ball bearing 734 is installed at the end of the insert 733 away from the return spring 732.

[0072] As can be seen from the above, by setting the ball bearing 734, when the movable toothed disc 73 rotates, the friction between the insert block 733 and the suspension roller shaft 3 and the annular groove 32 changes from sliding friction to rolling friction, thereby reducing the wear of the insert block 733. Example 5

[0073] Please see Figure 1 - Figure 9The present invention also discloses a molding method for processing precast concrete components, the specific steps of which are as follows:

[0074] The suspension roller shaft 3 is driven to rotate by the rotary drive mechanism 5, and then the cement is conveyed into the inside of the pipe mold 8 by the cement conveying equipment. At the same time, the continuous rotation of the suspension roller shaft 3 drives the pipe mold 8 to rotate and rolls the cement inside the pipe mold 8.

[0075] After the cement pipe inside the pipe forming mold 8 is formed, the operation of the rotation drive mechanism 5 is stopped, and the pipe forming mold 8 is pulled up by the crane, so that there is a gap between the cement pipe inside the pipe forming mold 8 and the suspension roller shaft 3.

[0076] The suspension roller shaft 3 is controlled to move out of the tube-making mold 8 by the shaft translation mechanism 6, and then the tube-making mold 8 is completely moved out by the crane;

[0077] During the process of the shaft translation mechanism 6 controlling the suspension roller shaft 3 to move out of the tube mold 8, the movable gear plate 73 contacts and drives the control bushing 4, so that the suspension roller shaft 3 contacts the cleaning brush plate 72, and then the cleaning brush plate 72 is driven to rotate by the rotation drive mechanism 5, so that the cleaning brush plate 72 cleans the moving suspension roller shaft 3.

[0078] 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 casting and molding equipment, comprising a frame, a gantry, a suspension roller shaft, and a tube-making mold, characterized in that: The frame and the gantry are arranged in parallel, and the distance between the frame and the gantry is fixed. One end of the suspension roller shaft is inserted into one side of the gantry, and a fixed toothed disc is fixedly installed on the other end of the suspension roller shaft. The tube making mold is sleeved on the suspension roller shaft. The frame is also provided with a control bushing, a rotary drive mechanism, a shaft translation mechanism, and a shaft cleaning mechanism. The control bushing is rotatably mounted on the frame and sleeved on the outside of the suspension roller shaft, so that the height of the suspension roller shaft cannot be changed. The rotary drive mechanism is used to drive the control bushing to rotate. The shaft translation mechanism is used to control the suspension roller shaft to slide inside the control bushing. The shaft cleaning mechanism includes a turntable, a cleaning brush plate, and a movable toothed disc. The turntable is rotatably mounted on the frame and sleeved on the outside of the suspension roller shaft. The cleaning brush plate is slidably mounted on the turntable. The movable toothed disc is rotatably mounted on the suspension roller shaft. When the suspension roller shaft moves away from the gantry, the movable toothed disc pulls the cleaning brush plate to slide, so that the cleaning brush plate contacts the surface of the suspension roller shaft. When the suspension roller shaft contacts the gantry, the control bushing contacts and drives the fixed gear disc, and there is a gap between the movable gear disc and the control bushing. When the suspension roller shaft moves away from the gantry, the suspension roller shaft drives the movable toothed disc to approach the control bushing, so that the movable toothed disc contacts the control bushing and transmits power. The control bushing includes a central sliding sleeve, a shaft rotation drive internal gear ring, and a brush plate rotation drive internal gear ring. The central sliding sleeve is sleeved on the outer surface of the suspension roller shaft. The shaft rotation drive internal gear ring is fixedly installed at the end of the central sliding sleeve away from the gantry. The brush plate rotation drive internal gear ring is fixedly installed at the end of the central sliding sleeve close to the gantry. The fixed gear disc is adapted and engaged with the shaft rotation drive internal gear ring. The movable gear disc is adapted and engaged with the brush plate rotation drive internal gear ring. When the fixed gear disc is inserted into the interior of the shaft rotation drive internal gear ring, the movable gear disc is located outside the brush plate rotation drive internal gear ring. The shaft translation mechanism includes a limiting shaft seat, an internally threaded tube, a threaded rod, a shaft translation drive motor, a short shaft, and a pull plate. The limiting shaft seat is fixedly installed on the lower surface of the frame. The internally threaded tube is rotatably installed inside the limiting shaft seat. The threaded rod is threadedly connected to the internally threaded tube. The shaft translation drive motor is fixedly installed on the upper surface of the frame. Both the drive end of the shaft translation drive motor and the outer surface of the internally threaded tube are fixedly installed with transmission pulleys. The transmission pulleys are connected by belt drive. The short shaft is fixedly installed at the end of the fixed gear plate away from the suspension roller shaft. One end of the pull plate is fixedly connected to the end of the threaded rod away from the gantry, and the other end of the pull plate is rotatably connected to the end of the short shaft.

2. The casting and molding equipment according to claim 1, characterized in that: The rotary drive mechanism includes a bushing rotary drive motor and rotary drive pulleys. The bushing rotary drive motor is fixedly mounted on the upper surface of the frame. A positioning shaft seat is rotatably mounted on the outer surface of the control bushing. The positioning shaft seat is fixedly mounted on the lower surface of the frame. Rotary drive pulleys are fixedly mounted on both the drive end of the bushing rotary drive motor and the outer surface of the control bushing. The rotary drive pulleys are connected by belt drive.

3. The casting and molding equipment according to claim 1, characterized in that: One end of the threaded rod is fixedly installed with an overlapping block, and the upper end of the gantry is fixedly installed with a support, and the support is provided with an overlapping groove that matches the overlapping block.

4. The casting and molding equipment according to claim 1, characterized in that: The shaft cleaning mechanism also includes a fixed shaft seat and a rotating plate. The fixed shaft seat is fixedly installed on the lower surface of the frame and rotatably installed on the outside of the turntable. The two ends of the rotating plate are respectively rotatably connected to the cleaning brush plate and the movable toothed disc. The turntable has a sliding hole. The cleaning brush plate has bristles at one end facing the suspension roller shaft, and a slider is fixedly installed at the other end of the cleaning brush plate away from the rotating plate. The slider is slidably connected to the sliding hole.

5. The casting and molding equipment according to claim 1, characterized in that: The movable toothed disc has spring grooves arranged in a ring array on its central hole. A return spring is fixedly installed on the top of the spring groove, and a plug is fixedly installed on the end of the return spring. The surface of the suspension roller shaft has an annular groove with an isosceles trapezoidal cross-section. The width of the annular groove is smaller than the width of the central sleeve. The plug is adapted to be inserted into the annular groove. When the plug is inserted into the annular groove, there is a gap between the bristles on the inner side of the cleaning brush plate and the surface of the suspension roller shaft.

6. The casting and molding equipment according to claim 5, characterized in that: A ball bearing is installed at the end of the insert block away from the return spring.

7. The casting and molding equipment according to claim 1, characterized in that: The gantry has a slot on one side wall facing the suspension roller shaft, and a connector is rotatably installed on one end of the suspension roller shaft near the gantry, the connector being adapted to the slot for insertion.

8. A molding method for processing precast concrete components, using a casting and molding device as described in any one of claims 1-7, characterized in that, The specific steps are as follows: The suspension roller shaft is driven to rotate by a rotary drive mechanism, and then cement is conveyed into the inside of the pipe-making mold by a cement conveying device. At the same time, the continuous rotation of the suspension roller shaft drives the pipe-making mold to rotate and rolls the cement inside the pipe-making mold. After the cement pipe inside the pipe-making mold is formed, the operation of the rotation drive mechanism is stopped, and the pipe-making mold is pulled up by a crane, so that there is a gap between the cement pipe inside the pipe-making mold and the suspension roller shaft. The suspension roller shaft is controlled to move out of the tube-making mold by the shaft translation mechanism, and then the tube-making mold is completely moved out by the crane; During the process of the shaft translation mechanism controlling the suspension roller shaft to move out of the tube-making mold, the movable gear plate contacts and drives the control bushing, causing the suspension roller shaft to contact the cleaning brush plate. Then, the cleaning brush plate is driven to rotate by the rotary drive mechanism, so that the cleaning brush plate cleans the moving suspension roller shaft.

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