Concrete part demolding equipment

Abstract

The invention relates to the field of concrete member production equipment, and discloses concrete member demolding equipment which comprises a rack and a forming mold, the forming mold comprises a bottom mold, a side mold and a mold assembly, and the bottom mold and the side mold are both installed on the rack and can be adjusted in a sliding mode. The mold closing assembly comprises a first mold closing driving piece and a second mold closing driving piece which are designed by adopting a shell and a piston rod to form a rod cavity and a rodless cavity, and the rod cavity of the first mold closing driving piece and the rodless cavity of the second mold closing driving piece are connected through hydraulic oil, so that synchronous operation of the first mold closing driving piece and the second mold closing driving piece is realized; and the two are respectively used for driving the bottom die to move up and down and the side die to approach or leave. And during demolding, the bottom mold is pressed by the dead weight of the concrete piece, so that the side mold is automatically separated, the contact area and vacuum adsorption force between the concrete piece and the mold are reduced, and demolding operation is smoother and more efficient.

Description

Technical Field

[0001] The present invention relates to the field of concrete component production equipment, and particularly to a demoulding device for concrete components. Background Art

[0002] In the field of precast concrete production, the mould is a key tool for producing precast concrete components, and the demoulding process after production is an important link to ensure the smooth output of precast components. At present, the commonly used demoulding methods mainly include hoisting demoulding and flipping demoulding. Among them, flipping demoulding is only applicable to the demoulding of small concrete components due to the limitations of the operating space and load-bearing capacity; while for large concrete components, hoisting demoulding is usually adopted.

[0003] However, during hoisting demoulding, due to the vacuum adsorption phenomenon formed between the concrete component and the mould, this vacuum adsorption force may reach 3 - 5 times the self-weight of the component. During demoulding, it is necessary to overcome this vacuum adsorption force to separate the concrete component from the mould. This not only greatly increases the load and energy consumption of the hoisting equipment, but also may cause quality problems such as damage and deformation of the concrete component during demoulding, seriously affecting the production efficiency and product quality of precast concrete components. Summary of the Invention

[0004] The present invention aims to provide a demoulding device for concrete components to reduce the vacuum adsorption force between the concrete component and the mould during hoisting demoulding and improve the production efficiency of concrete components.

[0005] To achieve the above object, the present invention adopts the following technical solution: A demoulding device for concrete components, including a frame and a forming mould. The forming mould includes a bottom mould, side moulds and a mould closing assembly. The bottom mould and the side moulds are both slidably arranged on the frame. The mould closing assembly includes a first mould closing driving member arranged between the bottom mould and the frame and capable of driving the bottom mould to move up and down, and a second mould closing driving member arranged between the side moulds and the frame and capable of driving the side moulds to approach or separate from the bottom mould. Both the first mould closing driving member and the second mould closing driving member include a housing and a piston rod. The piston rod is slidably arranged in the housing and divides the housing into a rod chamber and a rodless chamber. The rod chamber of the first mould closing driving member is communicated with the rodless chamber of the second mould closing driving member and filled with hydraulic oil. The rodless chamber of the first mould closing driving member is communicated with a driving medium capable of driving the piston rod to move.

[0006] The beneficial effects of this solution are as follows: The rod chamber of the first mold clamping driving member is communicated with the rodless chamber of the second mold clamping driving member, so that the first mold clamping member and the second mold clamping member run synchronously. During demolding, the gravity of the concrete member is used to press the bottom film, increasing the volume of the rod chamber of the first mold clamping driving member and decreasing the rodless chamber of the second mold clamping driving member. As a result, the side mold moves away from the bottom mold side, reducing the contact area between the concrete member and the forming mold, and thus effectively reducing the vacuum adsorption force between the two. This simplifies the demolding process, reduces the time and energy consumed in overcoming the vacuum adsorption force, and makes the demolding operation smoother and more efficient.

[0007] Further, it also includes a driving medium storage device. The driving medium storage device includes an air inlet and an oil outlet. An air inlet valve is provided at the air inlet, and the air inlet valve is communicated with compressed air. The oil outlet is communicated with the rodless chamber. The driving medium is hydraulic oil, which is stored in the driving medium storage device and enters the rodless chamber of the first mold clamping driving member through the oil outlet under the action of compressed air.

[0008] Further, a pressure lock is provided between the rodless chamber of the first mold clamping driving member and the oil outlet. A discharge port is provided between the pressure lock and the rodless chamber. The driving medium storage device also includes an oil return port, and the oil return port is communicated with the discharge port.

[0009] Further, a detector is provided between the discharge port and the rodless chamber. The detector can detect the pressure of the hydraulic oil in the rodless chamber and feedback the detected pressure to the air inlet valve.

[0010] Further, the forming mold also includes a guiding component. The guiding component includes a first guiding rod and a second guiding rod. The first guiding rod is fixedly arranged on the bottom mold and is slidably connected with the machine frame. The second guiding rod is fixed on the side mold and is slidably connected with the machine frame.

[0011] Further, the axis of the first guiding rod is parallel to the plane where the side mold is located, and the axis of the second guiding rod is parallel to the plane where the bottom mold is located.

[0012] Further, it also includes a limiting part and a buffer part. The limiting part is fixed on the first guiding rod and the second guiding rod and can limit the extreme positions of the relative sliding of the first guiding rod and the second guiding rod with respect to the machine frame. The buffer part is fixedly arranged on the limiting part and is located between the limiting part and the machine frame.

[0013] Further, it also includes a supporting component. The supporting component includes a first supporting member and a second supporting member. The first supporting member is arranged between the machine frame and the bottom mold and can support the bottom mold. The second supporting member is arranged between the machine frame and the side mold and can support the side mold.

[0014] Further, it also includes a machine frame and a lifting component. The lifting component is arranged on the machine frame and can lift the formed concrete member.

[0015] Further, it further includes a spray component, which includes a spray cavity, a control board, and a number of spray nozzles. The spray cavity is arranged inside the side mold and communicates with the spray nozzles. The spray nozzles are arranged on the inner wall of the side mold. The control board is slidably arranged between the spray cavity and the spray nozzles and can control the opening amplitude of the spray nozzles. Through the arrangement of the spray component, the opening amplitude of the spray nozzles is adjusted by the sliding of the control board relative to the side mold, thereby dynamically adjusting the amount of the sprayed liquid, and further controlling the drying speed of the concrete, so that the quality of the concrete is more controllable. Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional schematic diagram of the closed mold state of the molding die in the embodiment of the present invention;

[0017] Figure 2 It is a top view of the closed mold state of the molding die in the embodiment of the present invention;

[0018] Figure 3 It is a front view of the open mold state of the molding die in the embodiment of the present invention;

[0019] Figure 4 It is a schematic diagram of the connection relationship of the mold closing component of the present invention;

[0020] Figure 5 It is a schematic diagram of the positional relationship between the spray control component of the present invention and the side mold. Detailed Embodiments

[0021] The following is further detailed through specific embodiments:

[0022] The reference numerals in the drawings of the specification include: bottom mold 11, side mold 12, accommodation cavity 121, first mold closing driving member 21, second mold closing driving member 22, driving medium storage 231, hydraulic lock 232, rodless cavity 201, rod cavity 202, first guide rod 31, second guide rod 32, partition plate 41, extension plate 411.

[0023] Embodiment 1

[0024] Embodiment 1 is basically as shown in the attached Figures 1-4 shown, such as Figures 1-4 shown, the concrete part demolding device includes a frame, a molding die, and a lifting component. The frame is welded to the ground, and the molding die and the lifting component are both arranged on the frame.

[0025] Such as Figure 1 、 Figure 2 shown, the molding die includes a bottom mold 11, a side mold 12, a guiding component, and a mold closing component. The bottom mold 11 and the side mold 12 can jointly form a concrete member molding cavity, such as Figure 3As shown, the guiding assembly includes a first guiding rod 31 and a second guiding rod 32. The first guiding rod 31 is substantially the same as the second guiding rod 32, except that the first guiding rod 31 is welded to the lower surface of the bottom mold 11, and the second guiding rod 32 is welded to the back of the side mold 12. Both the first guiding rod 31 and the second guiding rod 32 are slidably connected to the frame. The first guiding rod 31 is slidably arranged on the frame, and a number of second guiding rods 32 are welded to the side mold 12. The second guiding rods 32 are slidably arranged on the frame. Specifically, linear bearings are welded or fixed to the frame by bolts.

[0026] As Figure 1 , Figure 4 shown, the mold closing assembly includes a first mold closing driving member 21, a second mold closing driving member 22, and a driving medium storage 231. The first mold closing driving member 21 and the second mold closing driving member 22 are substantially the same, and both include a housing and a piston rod. The piston rod is slidably arranged in the housing and divides the housing into a rod chamber 202 and a rodless chamber 201 as Figure 4 shown. The rod chamber 202 of the first mold closing driving member 21 communicates with the rodless chamber 201 of the second mold closing driving member 22 and is filled with a driving medium. The difference is that the first mold closing driving member 21 is arranged between the bottom mold 11 and the frame. The housing is fixedly connected to the frame by bolts, and the free end of the piston rod is connected to the bottom mold 11 by bolts, so as to drive the bottom mold 11 to move up and down through the sliding between the piston rod and the housing. The second mold closing driving member 22 is arranged between the side mold 12 and the frame. The housing is fixedly connected to the frame by bolts, and the free end of the piston rod is fixedly connected to the side mold 12 by bolts, so as to drive the side mold 12 to move through the sliding between the piston rod and the housing.

[0027] The driving medium storage 231 stores hydraulic oil as the driving medium. The driving medium storage 231 includes an air inlet, an oil outlet, and an exhaust port. An air inlet valve is arranged at the air inlet, and the air inlet valve communicates with compressed air. The oil outlet communicates with the rodless chamber 201 of the first mold closing driving member 21. A hydraulic lock 232 is arranged between the oil outlet and the rodless chamber 201. An exhaust valve is arranged at the exhaust port.

[0028] During mold closing, the driving medium stored in the hydraulic oil in the driving medium storage 231 enters the rodless chamber 201 of the first mold closing driving member 21 through the oil outlet and the hydraulic lock 232 under the action of compressed air, so that the hydraulic pressure in the rodless chamber 201 of the first mold closing driving member 21 increases. The hydraulic pressure pushes the piston rod, making the volume of the rodless chamber 201 of the first mold closing driving member 21 increase. At the same time, the driving medium filled in the rod chamber 202 is conveyed to the rodless chamber 201 of the second mold closing driving member 22, thereby pushing the piston rod of the second mold closing driving member 22 to move, so that the side mold 12 moves towards the bottom mold 11, completing the construction of the concrete member forming cavity.

[0029] The lifting unit includes a mounting base, a lifting frame and a lifting component. A slide rail is welded on the frame. The mounting base is slidably arranged on the frame through the slide rail. The lifting frame is welded on the mounting base. The lifting component includes a lifting member and a clamping jaw. The lifting member is an actuator for adjusting the height of the clamping jaw, and can be one of a hydraulic cylinder or a hoist. In this embodiment, the lifting member is a hydraulic cylinder. The hydraulic cylinder is fixed on the lifting frame by bolts and is fixedly connected to the clamping jaw through an output shaft.

[0030] The specific implementation process is as follows:

[0031] When the concrete member reaches final set, open the discharge port valve and the drain valve. Under the action of the weight of the concrete member, the bottom mold 11 moves downward, conveying the drive medium in the rodless cavity 201 of the first mold clamping drive member 21 to the oil return port through the discharge port, reducing the drive medium in the rodless cavity 201, increasing the volume of the rodless cavity 202 of the first mold clamping drive member 21, thereby transferring the drive medium filled in the rodless cavity 201 of the second mold clamping drive member 22, reducing the volume of the rodless cavity 201 of the second mold clamping drive member 22, and further causing the side mold 12 to move away from the concrete member, thus completing the preliminary demolding work by borrowing the self-weight of the concrete member, reducing the vacuum adsorption force between the forming mold and the concrete member, reducing the difficulty of hoisting and demolding. At the same time, increasing the contact area between the concrete member and the air makes the hardening process of the concrete member more controllable.

[0032] When the concrete member is hardened, first, slide the lifting frame to above the forming mold through the mounting base, lower the clamping jaw by using the lifting member and clamp the concrete member. After the clamping is stable, adjust the height of the clamping jaw by using the lifting member so that the bottom surface of the concrete member clamped by the clamping jaw is higher than the upper edge of the side mold 12. Then, move the position of the lifting frame through the mounting base and transfer the concrete member clamped by the clamping jaw to the designated position, thereby completing the demolding work of the concrete member.

[0033] Embodiment 2

[0034] Example 2 is basically the same as Example 1, except that it further includes a support assembly. The support assembly includes a first support member and a second support member. The first support member is disposed between the frame and the bottom mold 11 and can support the bottom mold 11. The second support member is disposed between the frame and the side mold 12 and can support the side mold 12. In this embodiment, both the first support member and the second support member are jacks. The jacks are fixed to the frame by bolts. When manufacturing a concrete member, first, the mold closing assembly is used to drive the bottom film and the side mold 12 to move to form a concrete member forming cavity. Subsequently, the bottom mold 11 and the side mold 12 are supported by the jacks, so as to provide stable support during the pouring process, and to prevent the concrete member forming cavity from having gaps due to the weight of the concrete during pouring, which affects the forming quality of the concrete member. After the concrete in the concrete member in the forming cavity enters the final setting, the support of the jacks is cancelled, so that the bottom mold 11 can move downward under the self-weight of the concrete member.

[0035] Example 3

[0036] Example 3 is basically the same as Example 1, except that it further includes a spraying assembly. The spraying assembly includes a spraying cavity, a control board, and a plurality of spraying ports. The spraying cavity is disposed inside the side mold and is communicated with the spraying ports. The spraying ports are disposed on the inner wall of the side mold 12. The guide rod is hollow and internally provided with a spraying pipe communicated with the spraying cavity. The spraying pipe is communicated with a spraying liquid. As Figure 5 shown, the control board includes a partition board 41 and an extension board 411. The partition board 41 is provided with a plurality of through holes. A partition portion is disposed between the through holes. The aperture of the through hole is adapted to the spraying port. The width of the partition portion is greater than or equal to the diameter of the spraying hole. The extension board 411 is welded to the free end of the partition board 41. An accommodating cavity 121 is disposed on the adjacent side mold 12. The accommodating cavity 121 is adapted to the extension board 411. The partition board 41 is slidably disposed on the inner wall of the side mold and is located between the spraying cavity and the spraying ports. A spring is disposed between the partition board 41 and the side mold 12. When the through hole is aligned with the spraying port, the spring is in a normal state, and the spraying port is communicated with the spraying cavity and sprays the spraying liquid onto the concrete member.

[0037] When closing the mold, the spring is in a compressed state. The extension board 411 is located in the accommodating cavity 121. The partition portion is located between the spraying hole and the spraying cavity and blocks the spraying of the spraying liquid, thereby preventing the partition board 41 from excessively penetrating into the side mold 12, causing the spring to be excessively compressed and losing the ability to recover deformation. At the same time, by the sliding of the partition board 41 between the spraying port and the spraying cavity, the communication floating of the spraying port is controlled, thereby controlling the spraying amount of the spraying liquid, ensuring the humidity of the concrete surface, controlling the solidification process of the concrete, making the hardening process of the concrete more reliable, and avoiding problems such as insufficient strength, decreased durability, and structural defects of the concrete member caused by inadequate moisture retention measures.

[0038] The above are only embodiments of the present invention, and common general technical solutions and / or characteristics in the solutions are not described in detail herein. It should be noted that the technical means for solving problems in the above embodiments of the present invention can be used in combination to solve multiple technical problems at the same time. For those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope claimed in this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. Concrete demoulding equipment, characterized by: It includes a frame and a molding mold, the molding mold includes a bottom mold, a side mold and a clamping assembly, the bottom mold and the side mold are both slidably arranged on the frame, the clamping assembly includes a first clamping drive component which is arranged between the bottom mold and the frame and can drive the bottom mold to move up and down, and a second clamping drive component which is arranged between the side mold and the frame and can drive the side mold to be close to or away from the bottom mold, the first clamping drive component and the second clamping drive component both include a shell and a piston rod, the piston rod is slidably arranged in the shell and divides the shell into a rod chamber and a rodless chamber, the rod chamber of the first clamping drive component is connected to the rodless chamber of the second clamping drive component and is filled with hydraulic oil, and the rodless chamber of the first clamping drive component is connected to a driving medium which can drive the piston rod to move.

2. The concrete demoulding device according to claim 1, characterized in that: It also includes a driving medium storage device, which includes an air inlet and an oil outlet. The air inlet is provided with an air inlet valve, which is connected to compressed air. The oil outlet is connected to the rodless cavity. The driving medium is hydraulic oil. The hydraulic oil is stored in the driving medium storage device and enters the rodless cavity of the first mold driving component through the oil outlet under the action of compressed air.

3. The concrete demoulding device according to claim 2, characterized in that: A pressure lock is arranged between the rodless cavity and the oil outlet of the first clamping drive component, and a material outlet is arranged between the pressure lock and the rodless cavity. The driving medium storage device also includes an oil return port, which is connected to the material outlet.

4. The concrete demoulding device according to claim 3 is characterized in that: A detector is arranged between the discharge port and the rodless cavity. The detector can detect the pressure of the hydraulic oil in the rodless cavity and can feed back the detected pressure to the air inlet valve.

5. The demoulding device for concrete parts according to claim 4, characterized in that: The forming mold also includes a guide assembly, which includes a first guide rod and a second guide rod. The first guide rod is fixedly arranged on the bottom mold and slidably connected to the frame, and the second guide rod is fixed on the side mold and slidably connected to the frame.

6. The demoulding device for concrete parts according to claim 5, characterized in that: The axis of the first guide rod is parallel to the plane where the side mold is located, and the axis of the second guide rod is parallel to the plane where the bottom mold is located.

7. The demoulding device for concrete parts according to claim 6, characterized in that: It also includes a limiting part and a buffer. The limiting part is fixed on the first guide rod and the second guide rod and can limit the extreme position of the first guide rod and the second guide rod sliding relative to the frame. The buffer is fixed on the limiting part and located between the limiting part and the frame.

8. The demoulding device for concrete parts according to claim 1, characterized in that: It also includes a support assembly, which includes a first support member and a second support member. The first support member is arranged between the frame and the bottom mold and can support the bottom mold, and the second support member is arranged between the frame and the side mold and can support the side mold.

9. The concrete demoulding device according to claim 1, characterized in that: It also includes a lifting unit, which includes a lifting frame and a lifting assembly. The lifting frame is slidably arranged on the frame, and the lifting assembly includes a clamp and a lifting member. The clamp is used to clamp the concrete component, and the lifting member is fixedly arranged on the lifting frame and can adjust the height of the clamp.

10. The concrete demoulding device according to claim 1, characterized in that: It also includes a spray assembly, which includes a spray chamber, a control panel and a plurality of spray ports. The spray chamber is arranged inside the side mold and is connected with the spray ports. The spray ports are arranged on the inner wall of the side mold. The control panel is slidably arranged between the spray chamber and the spray ports and can control the opening range of the spray ports.

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