Full-automatic mold for concrete round pipe

Abstract

The application discloses a kind of full-automatic mould of concrete round pipe, it is related to concrete pouring mould technical field, including bottom mould, end mould, inner mould, outer mould and frame, the bottom mould, end mould, inner mould and outer mould are mutually spliced to form the pouring space of concrete round pipe, drive mechanism is provided on the frame, it is limit connected on the frame and with first stroke and second stroke, in the first stroke, the drive mechanism drives outer mould to be close to or away from bottom mould, in the second stroke, the drive mechanism drives outer mould to vibrate.The full-automatic mould of concrete round pipe provided in the application is assembled to form the pouring space of concrete round pipe when in use bottom mould, end mould, inner mould and outer mould, after concrete solidification, second stroke of drive mechanism can first drive outer mould to vibrate, it is convenient to drive outer mould to separate from concrete by first stroke of drive mechanism.

Description

Technical Field

[0001] This invention relates to the field of concrete casting mold technology, specifically to a fully automatic mold for concrete circular pipes. Background Technology

[0002] Concrete circular pipes are a type of pipe structure used in drainage systems, primarily for guiding and discharging surface water and groundwater. The characteristic of teardrop concrete culverts is their teardrop-shaped cross-section, wider at the top and narrower at the bottom, with a circular opening in the center. This design increases the stability and load-bearing capacity of the culvert. Their production requires the use of matching molds for casting, making the process relatively complex.

[0003] For example, the authorized patent with authorization announcement number CN216578433U, authorization announcement date May 23, 2022, and title "A Concrete Circular Hole Shaping Mold" includes an outer cylinder and a support plate. The outer cylinder is a circular tubular structure, and the support plate is fixedly connected to the inner wall of the outer cylinder. The support plate is a ring structure. The outer cylinder forms a circular mold, and the support plate provides support from the inside. It is reusable, has a high degree of standardization, and improves work efficiency and pouring quality.

[0004] In the existing technology, although the formwork of the concrete circular pipe is coated with a release agent before pouring, there is still some adhesion between the outer wall of the concrete and the formwork after the concrete is poured. This increases the force between the concrete and the formwork, making demolding more difficult. Summary of the Invention

[0005] The purpose of this invention is to provide a fully automatic mold for concrete circular pipes to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A fully automatic mold for concrete circular pipes includes a bottom mold, end molds, an inner mold, an outer mold, and a frame. The bottom mold, end molds, inner mold, and outer mold are spliced ​​together to form a pouring space for the concrete circular pipe. The frame is equipped with:

[0008] The drive mechanism is limitedly connected to the frame and has a first stroke and a second stroke. In the first stroke, the drive mechanism drives the outer mold to move closer to or away from the bottom mold. In the second stroke, the drive mechanism drives the outer mold to vibrate.

[0009] The aforementioned fully automatic concrete circular pipe mold includes a driving mechanism comprising a hydraulic rod hinged to a frame, a driving block hinged to the other end of the hydraulic rod, a movable plate provided on the outer mold, a movable groove constructed on the movable plate, the driving block being slidably connected in the movable groove, and a switching component for switching the position of the movable plate.

[0010] The aforementioned fully automatic concrete circular pipe mold includes a driving mechanism comprising a vibration assembly, which includes a connecting frame fixed to the outer wall of the outer mold, a rotating shaft rotatably connected to the connecting frame, an eccentric wheel fixed on the rotating shaft, and a transmission assembly. During the second stroke, the driving block drives the rotating shaft to rotate via the transmission assembly.

[0011] The aforementioned fully automatic mold for concrete circular pipes includes a transmission assembly comprising a rack fixed to a drive block and a gear fixed to a rotating shaft.

[0012] The aforementioned fully automatic mold for concrete circular pipes includes a locking mechanism between the bottom mold and the outer mold. When the outer mold and the bottom mold are fitted together, the locking mechanism locks the outer mold and the bottom mold.

[0013] The aforementioned fully automatic mold for concrete circular pipes includes a locking mechanism comprising a locking rod fixed to the bottom mold and a locking groove constructed within the outer mold.

[0014] The aforementioned fully automatic mold for concrete circular pipes includes a locking block fixed on the moving plate, a locking groove on the locking rod, a switching groove inside the outer mold, and the moving plate slidably connected within the switching groove.

[0015] The aforementioned fully automatic mold for concrete circular pipes includes a switching mechanism comprising a baffle plate located in a locking groove. A first spring is provided inside the outer mold to force the baffle plate to move out of the locking groove, and a second spring is provided inside the outer mold to force the locking block to move into the locking groove.

[0016] The aforementioned fully automatic mold for concrete circular pipes also includes a snap-fit ​​component, which engages the snap-fit ​​block and the locking rod during the second stroke.

[0017] The aforementioned fully automatic concrete circular pipe mold also includes a reset component, which drives the moving plate to reset to the first position at the end of the second stroke.

[0018] In the above technical solution, the present invention provides a fully automatic mold for concrete circular pipes. When in use, the bottom mold, end mold, inner mold and outer mold are assembled to form a pouring space for the concrete circular pipe. After the concrete solidifies, the outer mold can be driven to vibrate through the second stroke of the drive mechanism. This reduces the force between the outer mold and the concrete, and makes it easier to drive the outer mold to detach from the concrete through the first stroke of the drive mechanism, thereby completing the demolding. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of a structure provided for another embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the outer mold provided in an embodiment of the present invention;

[0023] Figure 4 Provided for embodiments of the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the rack and gear meshing structure provided in an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the structure at the vibration component is provided for an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the movable plate within the active cavity in the second position according to an embodiment of the present invention;

[0027] Figure 8 This is a front view of the structure of the movable plate in the first position according to an embodiment of the present invention;

[0028] Figure 9 This is a top view of the structure at the movable plate provided in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Bottom mold; 2. Inner mold; 3. Outer mold; 4. Frame; 5. Hydraulic rod; 6. Drive block; 7. Moving plate; 8. Moving groove; 9. Movable cavity; 10. Connecting frame; 101. First bracket; 102. Second bracket; 11. Rotating shaft; 12. Eccentric wheel; 13. Rack; 14. Gear; 15. Locking rod; 16. Locking block; 17. Locking groove; 18. Baffle; 19. First spring; 20. Switching groove; 21. Second spring; 22. Locking groove; 23. Reset rod; 24. Trigger part; 25. Incomplete gear; 26. Elastic sheet; 27. Knocking block; 28. Connecting gear. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Reference Figures 1-9 This invention provides a fully automatic mold for concrete circular pipes, including a bottom mold 1, an end mold, an inner mold 2, an outer mold 3, and a frame 4. The bottom mold 1, end mold, inner mold 2, and outer mold 3 are spliced ​​together to form a pouring space for the concrete circular pipe. A drive mechanism is provided on the frame 4, which is limited and connected to the frame 4 and has a first stroke and a second stroke. In the first stroke, the drive mechanism drives the outer mold 3 to move closer to or away from the bottom mold 1. In the second stroke, the drive mechanism drives the outer mold 3 to vibrate.

[0033] Specifically, before pouring concrete circular pipe culverts, the various templates need to be spliced ​​together to form a pouring space. The splicing method between the templates is existing technology and will not be described in detail. The fully automatic concrete circular pipe mold provided in this embodiment is mainly used for teardrop-shaped concrete circular pipes. The illustrations and descriptions are based on teardrop-shaped concrete circular pipes. It includes a bottom mold 1 and two outer molds 3 (i.e., side molds). The two outer molds 3 are slidably connected to the corresponding frame 4. A sliding rail structure (not shown) can be set between the frame 4 and the outer molds 3. When pouring is required, the outer molds 3 are brought close to the bottom mold 1 along the sliding rail to splice the bottom mold 1 and the outer molds 3. After the splicing is completed, the inner mold 2 is positioned and installed (the inner mold 2 is suspended between the two outer molds 3 and is generally set on the corresponding frame 4. This is existing technology and will not be described in detail). Finally, the end molds at both ends are spliced ​​together, thus forming a pouring space. The innovation of this invention lies in the fact that, during the splicing process of the template, the first stroke of the drive mechanism (which can be an electric push rod in the prior art) can drive the outer mold 3 closer to the bottom mold 1 to reduce friction and facilitate splicing. After the concrete is poured, the second stroke of the drive mechanism (which can be a vibration motor in the prior art) is run. This allows the outer mold 3 to vibrate first and then the electric push rod to move the outer mold 3 away from the bottom mold 1, reducing the adhesion between the concrete and the outer mold 3 and thus reducing the force between them. Then, the outer mold 3 is moved away from the bottom mold 1, thereby completing the detachment of the outer mold 3.

[0034] The present invention provides a fully automatic mold for concrete circular pipes. In use, the bottom mold 1, end mold, inner mold 2 and outer mold 3 are assembled to form a pouring space for the concrete circular pipe. After the concrete solidifies, the outer mold 3 can be driven to vibrate through the second stroke of the drive mechanism. This reduces the force between the outer mold 3 and the concrete, and facilitates the outer mold 3 to be detached from the concrete through the first stroke of the drive mechanism, thereby completing the demolding.

[0035] In another embodiment of the present invention, the driving mechanism further includes a hydraulic rod 5 hinged to the frame 4, with a driving block 6 hinged to the other end of the hydraulic rod 5. A movable plate 7 is provided on the outer mold 3, and a movable groove 8 is constructed on the movable plate 7. The driving block 6 is slidably connected within the movable groove 8. The mechanism also includes a switching component for switching the position of the movable plate 7. Specifically, a movable cavity 9 is constructed on the outer mold 3, with an opening at the bottom of the movable cavity 9 for the hydraulic rod 5 to run within the opening. Both ends of the hydraulic rod 5 are hinged to the frame 4 and the driving block 6 respectively, allowing the hydraulic rod 5 to run at multiple angles. The movable plate 7 is located within the movable cavity 9 and has a first position and a second position. When the movable plate 7 is in the first position, the hydraulic rod 5 drives the driving block 6 to move within the movable groove 8, which is the first stroke of the driving mechanism. When the movable plate 7 is in the second position, the hydraulic rod 5 drives the driving block 6 to move within the movable groove 8, which is the second stroke of the driving mechanism. The switching component can be an electric push rod as used in the prior art. The hydraulic rod 5 extends to move the outer mold 3 towards the bottom mold 1, causing the moving plate 7 to switch positions. When the moving plate 7 is in the first position, the driving block 6 abuts against the end of the moving groove 8 near the bottom mold 1, and the hydraulic rod 5 continues to extend to move the outer mold 3 towards the bottom mold 1. When it is necessary to move away, the driving block 6 is driven to move to abut against the end of the moving groove 8 away from the bottom mold 1, and then the hydraulic rod 5 continues to retract to move the outer mold 3 away from the bottom mold 1. When the moving plate 7 is in the second position, the driving block 6 moves within the moving groove 8 and can drive a striking piece to strike the outer mold 3 through the swing rod assembly (the swing rod assembly can convert linear motion into rotational power), thereby causing the outer mold 3 to vibrate.

[0036] Preferably, the driving mechanism includes a vibration component, which includes a connecting frame 10 fixed on the outer wall of the outer mold 3, a rotating shaft 11 rotatably connected to the connecting frame 10, an eccentric wheel 12 fixed on the rotating shaft 11, and a transmission component. During the second stroke, the driving block 6 drives the rotating shaft 11 to rotate through the transmission component. Specifically, the top of the movable cavity 9 also has an opening, allowing the rotating shaft 11 at the bottom of the connecting frame 10 to extend into the movable cavity 9. When the switching component drives the movable plate 7 to switch to the second position, the driving block 6 moves along the moving groove 8, which can drive the rotating shaft 11 to rotate through the transmission component, such as the combination of a friction wheel and a friction strip. Preferably, the transmission component includes a rack 13 fixed on the driving block 6 and a gear 14 fixed on the rotating shaft 11. The rack 13 is arranged along the length direction of the moving groove 8. When the movable plate 7 switches to the second position, the rack 13 on the driving block 6 meshes with the gear 14 on the rotating shaft 11. Then, the driving block 6 moves back and forth along the moving groove 8 to drive the rotating shaft 11 to rotate, thereby driving the eccentric wheel 12 to rotate. The eccentric wheel 12 will vibrate when it rotates, and the vibration is transmitted to various parts of the outer mold 3 through the connecting frame 10, thereby reducing the part of the concrete and the outer mold 3 that are bonded together, making it easier for the outer mold 3 to detach.

[0037] It should be noted that the vibration generated by the eccentric wheel 12 is related to the rotational speed of the rotating shaft 11. The drive block 6 moves within the moving groove 8 driven by the hydraulic rod 5. The moving speed of the drive block 6 is basically determined within a certain range. In order to appropriately increase the rotational speed of the eccentric wheel 12, an acceleration mechanism can be set between the gear 14 and the eccentric wheel 12 to increase the rotational speed of the eccentric wheel 12 without changing the moving speed of the drive block 6, thereby obtaining a suitable vibration force. This is existing technology and will not be elaborated further. When the eccentric wheel 12 vibrates, the connecting frame 10 and the outer mold 3 vibrate synchronously, which will affect the operation of other mechanisms in the movable cavity 9. Therefore, it is necessary to control the rotational speed of the eccentric wheel 12 within a certain range in order to minimize the impact of vibration on other mechanisms while driving the outer mold 3 to vibrate.

[0038] As an alternative or parallel solution to the aforementioned eccentric wheel 12 structure, further, the first bracket 101 and the second bracket 102 of the connecting frame 10 are interconnected, and the rotating shaft 11 is rotatably connected at the connection between the first bracket 101 and the second bracket 102. The other ends of the first bracket 101 and the second bracket 102 are both fixed to the outer wall of the outer mold 3. Multiple sets of striking components are provided on the rotating shaft 11. The striking components include a connecting gear 28 fixed on the rotating shaft 11, and an incomplete gear 25 rotatably connected to the connecting frame 10. The incomplete gear 25 meshes with the connecting gear 28. An elastic plate 26 is fixed to one side of the incomplete gear 25, and a striking block 27 is fixed to the end of the elastic plate 26. A torsion spring is provided between the incomplete gear 25 and the connecting frame 10. The torsion spring is used to force the striking block 27 and the elastic plate 26 to be between the first bracket 101 and the second bracket 102. Specifically, when the rotating shaft 11 rotates, the connecting gear 28 drives the incomplete gear 25 to rotate, thereby causing the elastic plate 26 and the striking block 27 to move towards the first bracket 101 or the second bracket 102 (the direction of movement of the striking block 27 is also different when the rotating shaft 11 rotates in different directions, and it is affected by the direction of movement of the rack 13). This causes the striking block 27 to strike the connecting frame 10, resulting in vibration of the connecting frame 10 and the outer mold 3. As the connecting gear 28 continues to rotate, the incomplete gear 25 eventually disengages from the connecting gear 28, and the torsion spring causes the striking block 27 to be positioned between the first bracket 101 and the second bracket 102. The spring can drive the incomplete gear 25 to move closer to the connecting gear 28, so that when the connecting gear 28 rotates continuously, it drives the incomplete gear 25 to rotate repeatedly (that is, the incomplete gear 25 repeatedly meshes with the connecting gear 28 and rotates under the drive of the connecting gear 28), thereby driving the striking block 27 to repeatedly strike the first bracket 101 or the second bracket 102, so that the outer mold 3 can vibrate continuously; the striking block 27 and the eccentric wheel 12 can be used alone or in combination. If the two are used in combination, the eccentric wheel 12 will increase the swing amplitude of the elastic plate 26, thereby increasing the striking force of the striking block 27 on the connecting frame 10, thereby increasing the vibration force of the outer mold 3.

[0039] In another embodiment of the present invention, a locking mechanism is further provided between the bottom mold 1 and the outer mold 3. When the outer mold 3 and the bottom mold 1 are fitted together, the locking mechanism locks the outer mold 3 and the bottom mold 1. Specifically, when the driving mechanism moves the outer mold 3 to the position where it fits with the bottom mold 1, the outer mold 3 is on the frame 4 and only fits with the bottom mold 1. At this time, the end molds have not yet been spliced, and the outer mold 3 has fewer stress points, making it prone to tilting. Therefore, a locking mechanism is provided, such as the locking structure in the prior art, to initially lock the bottom mold 1 and the outer mold 3 when they are fitted together, facilitating subsequent splicing.

[0040] Preferably, the locking mechanism includes a locking rod 15 fixed to the bottom mold 1 and a locking groove constructed within the outer mold 3. Specifically, both the locking rod 15 and the locking groove are arranged along the moving direction of the outer mold 3 on the frame 4. When the outer mold 3 is about to fit with the bottom mold 1, the locking rod 15 is inserted into the locking groove. Until the outer mold 3 fits with the bottom mold 1, the locking rod 15 is fully inserted into the locking groove, thereby initially locking the outer mold 3 and minimizing the possibility of the outer mold 3 tilting.

[0041] Furthermore, a locking block 16 is fixed on the movable plate 7, a locking groove 17 is constructed on the locking rod 15, a switching groove 20 is constructed inside the outer mold 3, and the movable plate 7 is slidably connected in the switching groove 20. Specifically, the locking groove is connected to the movable cavity 9, and the switching groove 20 is constructed inside the movable cavity 9. When the moving plate 7 is at the bottom of the switching groove 20, it is in the first position, and when the moving plate 7 is at the top of the switching groove 20, it is in the second position. When the moving plate 7 moves from the first position to the second position, the moving plate 7 moves from the bottom to the top of the switching groove 20, and at the same time drives the locking block 16 to move upward into the locking groove 17. When the moving plate 7 moves from the second position to the first position, the locking block 16 moves out of the locking groove 17. The purpose of this arrangement is that the hydraulic rod 5 drives the drive block 6 to move in the moving groove 8 to run the second stroke or the first stroke. Therefore, when it runs the second stroke and drives the outer mold 3 to vibrate, the position of the outer mold 3 may move due to vibration. For this reason, the locking block 16 and the locking groove 17 are set. When the moving plate 7 moves from the first position to the second position, the locking block 16 restricts the position of the locking rod 15 to minimize the displacement or shaking of the outer mold 3 during vibration.

[0042] Preferably, the switching mechanism includes a baffle 18 located within a locking groove. A first spring 19 is provided within the outer mold 3 to force the baffle 18 to move out of the locking groove, and a second spring 21 is provided within the outer mold 3 to force the locking block 16 to move into the locking groove 17. Specifically, the switching groove 20 is constructed within the movable cavity 9, and the movable plate 7 slides within the movable cavity 9 via the switching groove 20. The two ends of the first spring 19 are respectively fixed to the inner wall of the movable cavity 9 and the outer wall of the baffle 18, and the two ends of the second spring 21 are respectively fixed to the inner wall of the movable cavity 9 and the bottom wall of the movable plate 7. A connecting part is constructed on the baffle 18, and the first spring 19 is fixed to the connecting part. The first spring 19 forces the baffle 18 to be in the locking groove and to abut against the top of the locking block 16. The purpose of this arrangement is that when the movable plate 7 is in the first position, the baffle 18 is at the top of the locking block 16 to abut against the locking block. The positions of 16 and the movable plate 7 are restricted, thereby limiting the movable plate 7 to the first position. When the drive block 6 moves along the movable groove 8 towards the bottom mold 1, it abuts against the inner wall of the movable groove 8 and forces the movable plate 7 to move towards the bottom mold 1. At this time, the movable plate 7 is restricted and cannot move along the switching groove 20 to the second position, so that when the drive block 6 moves, it drives the movable plate 7 to abut against the inner wall of the switching groove 20 (that is, against the inner wall of the movable cavity 9), thereby driving the outer mold 3 to move closer to the bottom mold 1 along the slide rail. When the outer mold 3 moves closer to the bottom mold 1, the locking rod 15 will be inserted into the locking groove. During this process, the locking rod 15 presses against the baffle 18 (the bottom wall of the baffle 18 is flush with the bottom wall of the locking rod 15), causing the baffle 18 to press against the first spring 19 and move into the locking groove (that is, into the movable cavity 9). When the locking rod 15 abuts against the baffle 18, the bottom end of the locking rod 15 simultaneously abuts against the top end of the locking block 16 until the locking rod 15 is fully inserted into the locking groove (that is, when the outer mold 3 moves to the position of fitting with the bottom mold 1). At this time, the position of the locking block 16 corresponds to the position of the locking groove 17. At this time, the locking block 16 is unrestricted, allowing the moving plate 7 and the locking... Block 16 can move along the switching groove 20 under the action of the second spring 21, that is, the moving plate 7 moves from the first position to the second position, and the locking block 16 is inserted into the locking groove 17 at the same time. When the locking block 16 is fully inserted into the locking groove 17, the moving plate 7 moves to the top of the switching groove 20. In this way, the relative position of the bottom mold 1 and the outer mold 3 can be locked at the same time. The moving plate 7 will move from the first position to the second position when the two are locked, which makes it convenient to drive the outer mold 3 to vibrate through the driving block 6. During the vibration, the relative position of the outer mold 3 and the bottom mold 1 is always restricted.

[0043] Furthermore, it also includes a latching element that engages the locking block 16 and the locking rod 15 during the second stroke. Specifically, since one end of the hydraulic rod 5 is hinged to the drive block 6, its driving angle changes with the position of the drive block 6. When the moving plate 7 is in the first position, it is restricted by the baffle 18 and will not move to the second position under the action of the second spring 21. However, when the moving plate 7 is in the second position, it is not subject to other restrictions and can easily disengage from the second position. Therefore, a latching element, such as an electromagnetic lock, is provided to engage the locking block 16 and the locking rod 15 during the second stroke.

[0044] Preferably, the latching member includes a latching groove 22 constructed on the latching block 16. During the second stroke, the first spring 19 forces the baffle 18 to insert into the latching groove 22. When the moving plate 7 moves from the first position to the second position, the driving block 6 is in the second stroke. At this time, the moving plate 7 drives the latching block 16 to insert into the latching groove 17. After the moving plate 7 moves to the second position, the position of the baffle 18 corresponds to the latching groove 22, so that the baffle 18 can enter the latching groove 22 under the action of the first spring 19. In this way, the relative positions of the latching block 16 and the locking rod 15 can be latched by the baffle 18, thereby restricting the moving plate 7 to the second position.

[0045] Furthermore, a reset component is also included. At the end of the second stroke, the reset component drives the moving plate 7 to reset to the first position. Specifically, when the moving plate 7 is in the second position, the drive block 6 moves along the moving groove 8, which is the second stroke. When the drive block 6 moves to the end of the second stroke, that is, when the drive block 6 moves from one end near the bottom mold 1 to the other end (when the drive block 6 moves to the other end, the rack 13 and gear 14 disengage), the moving plate 7 needs to be reset for the next use. For this purpose, a reset mechanism is provided (such as the electric push rod in the prior art, which is located on the side of the baffle 18 away from the first spring 19. When needed, the electric push rod can be extended to abut against the baffle 18 and disengage the baffle 18 from the snap-fit ​​groove 22). At the end of the second stroke, the reset component drives the moving plate 7 to reset. When the moving plate 7 resets, it can also drive the baffle 18 to move out of the snap-fit ​​groove 22, and at the same time drive the snap-fit ​​block 16 to move out of the snap-fit ​​groove 17, so that the outer mold 3 can move away from the bottom mold 1 for demolding.

[0046] Preferably, the reset assembly includes a reset rod 23 slidably connected within the outer mold 3, the reset rod 23 being fixed to the baffle 18, and a trigger portion 24 being constructed at the top end of the reset rod 23. Specifically, the reset rod 23 is fixed to the connecting part of the baffle 18; the drive block 6 protrudes from the moving groove 8, and the trigger part 24 is in the second stroke of the protruding part of the drive block 6, that is, when the moving plate 7 is in the second position, the protruding part of the drive block 6 can abut against the trigger part 24, and when the moving plate 7 moves to the first position, the trigger part 24 is above the drive block 6, that is, when the moving plate 7 is in the first position, the drive block 6 will not abut against the trigger part 24; the end of the hydraulic rod 5 near the frame 4 is lower than the other end; in the second stroke, the hydraulic rod 5 retracts to drive the drive block 6 to move away from the bottom mold 1 until the drive block 6 moves to the end of the moving groove 8. During this process, the part of the drive block 6 protruding from the moving groove 8 will abut against the trigger part 24, thereby driving the trigger part 24, the reset rod 23 and the baffle 18 to move away from the bottom mold 1 along the movable cavity 9, and during the movement of the baffle 18, the first spring 19 will be squeezed and released from the slot 17. After the inner part is disengaged, the moving plate 7, no longer restricted by the baffle 18, can move along the switching groove 20, allowing the hydraulic rod 5 to continue retracting to drive the drive block 6 downward and move the moving plate 7 from the second position to the first position (in this process, the force of the hydraulic rod 5 on the drive block 6 is the resultant force downward and away from the bottom mold 1, while the drive block 6 has already moved to the end of the moving groove 8 and cannot continue to move, so the drive block 6 can only drive the moving plate 7 downward together, that is, the moving plate 7 moves from the second position to the first position). After the moving plate 7 returns to the first position, the locking rod 15, no longer restricted by the locking block 16, can disengage from the locking groove, that is, the outer mold 3 can disengage from the bottom mold 1. During the disengagement process, the baffle 18 returns to its original position under the action of the first spring 19, so as to re-abut the top of the locking block 16, thereby restricting the moving plate 7 to the first position. At this time, the hydraulic rod 5 continues to retract, which can drive the outer mold 3 to continue to move away from the bottom mold 1, thus completing the demolding.

[0047] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fully automatic mold for concrete circular pipes, comprising a bottom mold, end molds, an inner mold, an outer mold, and a frame, wherein the bottom mold, end molds, inner mold, and outer mold are spliced ​​together to form a casting space for the concrete circular pipe, characterized in that, The vehicle frame is equipped with: A drive mechanism is limitedly connected to the frame and has a first stroke and a second stroke. In the first stroke, the drive mechanism drives the outer mold to move closer to or away from the bottom mold. In the second stroke, the drive mechanism drives the outer mold to vibrate. The drive mechanism includes a hydraulic rod hinged to the frame, a drive block hinged to the other end of the hydraulic rod, a movable plate provided on the outer mold, a movable groove constructed on the movable plate, the drive block slidably connected in the movable groove, and a switching component for switching the position of the movable plate. The driving mechanism includes a vibration component, which includes a connecting frame fixed to the outer wall of the outer mold, a rotating shaft rotatably connected to the connecting frame, an eccentric wheel fixed on the rotating shaft, and a transmission component. In the second stroke, the driving block drives the rotating shaft to rotate through the transmission component. The transmission assembly includes a rack fixed to the drive block and a gear fixed to the rotating shaft; The outer mold has a movable cavity, and the movable plate is located in the movable cavity and has a first position and a second position. When the movable plate is in the first position, the hydraulic rod drives the drive block to move in the movable groove, which is the first stroke of the drive mechanism; when the movable plate is in the second position, the hydraulic rod drives the drive block to move in the movable groove, which is the second stroke of the drive mechanism. The rack is set along the length of the moving groove. When the moving plate is switched to the second position, the rack on the drive block meshes with the gear on the rotating shaft. Then the drive block moves along the moving groove to drive the rotating shaft to rotate, thereby driving the eccentric wheel to rotate and generate vibration.

2. The fully automatic mold for concrete circular pipes according to claim 1, characterized in that, A locking mechanism is provided between the bottom mold and the outer mold. When the outer mold and the bottom mold are fitted together, the locking mechanism locks the outer mold and the bottom mold.

3. The fully automatic mold for concrete circular pipes according to claim 2, characterized in that, The locking mechanism includes a locking rod fixed to the bottom mold and a locking groove constructed inside the outer mold.

4. The fully automatic mold for concrete circular pipes according to claim 3, characterized in that, A locking block is fixed on the movable plate, a locking groove is constructed on the locking rod, a switching groove is constructed inside the outer mold, and the movable plate is slidably connected in the switching groove.

5. The fully automatic mold for concrete circular pipes according to claim 4, characterized in that, The switching component includes a baffle located in a locking groove. A first spring is provided in the outer mold to force the baffle to move out of the locking groove, and a second spring is provided in the outer mold to force the locking block to move into the locking groove.

6. The fully automatic mold for concrete circular pipes according to claim 4, characterized in that, It also includes a snap-fit ​​element that engages the snap-fit ​​block and the locking lever during the second stroke.

7. The fully automatic mold for concrete circular pipes according to claim 6, characterized in that, It also includes a reset component, which, at the end of the second stroke, drives the moving plate to reset to the first position.

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