A precast block demoulding aid

Abstract

The utility model relates to prefabricated block demoulding technical field, specifically point to a prefabricated block demoulding auxiliary tool, including frame, the frame front side top rotatory installation has the connecting frame, and two groups U type arms are symmetrically installed to the left and right sides of connecting frame, and the convex edge of the left and right sides of the mould box mouth that is made with prefabricated block is inserted into two groups U type arms U type mouth respectively, and the width of U type mouth is greater than the thickness of convex edge, the rear side on the frame is provided with vibration mechanism, vibration mechanism rotates to two groups U type arms to the rear to the rear side of frame and lies on the top of vibration mechanism and places, vibration mechanism contacts mould box at this moment, drives convex edge to vibrate up and down in U type mouth, and prefabricated block is taken out from mould box, and the connecting frame is rotated forward again to reset, and the mould box is carried back to the original position again, so that the mould box before and after processing is all in the state that the box mouth is towards, facilitates the subsequent mould box to stack or to put into use again.

Description

Technical Field

[0001] This utility model relates to the field of precast block demolding technology, specifically to a precast block demolding auxiliary tool. Background Technology

[0002] Vibration demolding is a common method for demolding precast blocks. The mold box for pouring concrete is placed with the opening facing upwards. If the vibration demolding machine is not equipped with a flipping structure, the mold box needs to be manually flipped before being placed on the demolding machine. After the precast blocks are demolded, they need to be flipped back into the mold box for stacking or reused for concrete injection.

[0003] Although demolding machines equipped with a flipping structure do not require manual flipping of the mold box, manual removal of the mold box from the precast block is often still necessary after vibration separation.

[0004] The newly designed precast block demolding aid has the advantages of low cost and relatively simple structure. It has a high cost-performance ratio for demolding small and medium-sized precast blocks. The U-shaped arm not only enables the handling of the mold box and precast blocks, but also allows for separate operation of the two. Utility Model Content

[0005] (I) Technical Issues

[0006] The present invention aims to at least solve the problem in the prior art that the movement and separation of molds require different mechanical or manual operations.

[0007] (II) Technical Content

[0008] This solution provides a precast block demolding aid tool, achieved through the following specific technical means: including...

[0009] The frame has a connecting frame rotatably mounted on the top front side, and two sets of U-shaped arms are symmetrically mounted on the left and right sides of the connecting frame. When the two sets of U-shaped arms are rotated to the front side of the frame and laid flat, the convex edges on the left and right sides of the mold box containing the precast blocks can be pushed into the U-shaped openings of the two sets of U-shaped arms respectively.

[0010] A vibration mechanism is provided on the rear side of the frame. When the connecting frame rotates backward, the two sets of U-shaped arms rotate to the rear side of the frame and are placed flat above the vibration mechanism, vibrating the precast block out of the mold box. Then the connecting frame can be rotated forward again to reset, so that the top opening of the mold box remains facing upward before and after the operation.

[0011] Preferred technical solution 1: The vibration mechanism includes contact plates located on the left and right sides of the rear of the frame. When the two sets of U-shaped arms rotate to the rear of the frame and are placed flat above the vibration mechanism, the two sets of contact plates are respectively located directly below the two sets of U-shaped arms. The bottom of the contact plates slides through the crossbeam on the frame via vertical rods, and the bottom ends of multiple sets of vertical rods are fixed to a base plate. A vibration motor is installed on the base plate, and a vibration spring is connected between the vertical rods and the crossbeam.

[0012] Preferred technical solution 2: A belt conveyor is installed on the rear side of the frame.

[0013] Preferred technical solution 3: An elastic pressing element is installed through the side of the U-shaped arm that is close to the contact plate, and multiple sets of the elastic pressing element are distributed sequentially along the length of the U-shaped arm;

[0014] The elastic pressing component includes a slide rod that slides through the wall of the U-shaped arm near the contact plate and enters the U-shaped opening at one end, and a pressure spring is connected between the protruding part of the other end of the slide rod and the U-shaped arm. One end of the slide rod contacts the protruding edge and the other end is used to contact the contact plate.

[0015] Preferred technical solution four: A base frame is fixed on the front side of the frame below the U-shaped arm, and multiple sets of rollers are distributed along the length direction on the base frame to reduce friction by utilizing the contact time between the rollers and the bottom wall of the mold box.

[0016] Preferred technical solution five: A double-headed adjusting screw is also rotatably installed inside the connecting frame, and the two sets of U-shaped arms are threadedly connected to both sides of the double-headed adjusting screw, and are also slidably connected to the connecting frame;

[0017] The installation position of the contact plate needs to be adapted to the position of the two sets of U-shaped arms.

[0018] (III) Technical Effects

[0019] The above structure gives this solution the following advantages:

[0020] 1. The design of this demolding aid tool is ingenious. It uses the rotation of the connecting frame to drive the U-shaped arm to transport the mold, and combines it with the vibration mechanism to achieve demolding. Compared with the traditional demolding method, it has built a new integrated demolding process. This integrated design simplifies the demolding operation to a certain extent and reduces the dependence on multiple complex equipment.

[0021] 2. Whether in the mass production of small precast blocks or in a production workshop with limited space, this tool can play a good role in improving demolding efficiency and reducing labor intensity. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of this solution;

[0024] Figure 2 This is a diagram showing the material loading status of this solution;

[0025] Figure 3 This is a vibration separation state diagram for this scheme;

[0026] Figure 4 This is a schematic diagram of the U-shaped arm in this design.

[0027] Among them, 1. Frame, 11. Crossbeam, 2. Connecting frame, 3. U-shaped arm, 4. Vibration mechanism, 41. Contact plate, 42. Vertical rod, 43. Base plate, 44. Vibration motor, 45. Vibration spring, 5. Belt conveyor, 6. Elastic pressing part, 61. Slide rod, 62. Pressure spring, 7. Double-headed adjusting screw, 8. Limit switch, 9. Protruding rod, 10. Base frame, 101. Roller. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-3 The precast block demolding auxiliary tool includes a frame 1, a connecting frame 2 rotatably mounted on the top front side of the frame 1, and two sets of U-shaped arms 3 symmetrically mounted on the left and right sides of the connecting frame 2. The opening of each set of U-shaped arms 3 faces away from the connecting frame 2. When in use, the connecting frame 2 rotates so that the two sets of U-shaped arms 3 rotate to the front side of the frame 1 and are laid flat. At this time, the protruding edges on the left and right sides of the mold box opening containing the precast block can be inserted into the U-shaped openings of the two sets of U-shaped arms 3 respectively. The width of the U-shaped opening is greater than the thickness of the protruding edge.

[0030] A vibration mechanism 4 is installed on the rear side of the frame 1. The vibration mechanism 4 rotates backward from the connecting frame 2 until the two sets of U-shaped arms 3 rotate to the rear side of the frame 1 and are placed flat on top of the vibration mechanism 4. During the flipping, the convex edge changes from contacting the bottom wall of the U-shaped opening to approaching the original top wall (now the bottom wall). At this time, the vibration mechanism 4 contacts the mold box and drives the convex edge to vibrate up and down in the U-shaped opening (the up and down vibration stroke is controlled within the U-shaped opening to avoid strong impact on the U-shaped opening wall). The vibration mechanism 4 achieves the separation of the mold box and the precast block. After the vibration separation, the precast block is removed from the mold box. Then the connecting frame 2 can be rotated forward again to reset. At this time, the two sets of U-shaped arms 3 carry the empty mold box to the front side of the frame 1 and are placed flat. Then the mold box is removed. Before and after processing, the mold box is in the state of opening facing, which is convenient for subsequent stacking or reuse of the mold box.

[0031] A belt conveyor 5 is installed at the rear of the frame 1. The conveyor belt on the belt conveyor 5 is located between two sets of contact plates 41 and is used to carry and transport the precast blocks that have been separated and fallen. This realizes the automatic conveying of the precast blocks after demolding, reduces the manual handling process, improves production efficiency, and also reduces the risk of damage to the precast blocks during handling. The conveying capacity of the belt conveyor 5 should be reasonably selected according to the size, weight and production speed of the precast blocks to ensure that it can transport the precast blocks stably and efficiently and avoid problems such as blockage and jamming. In addition, some protective devices, such as baffles and side skirts, can be installed on the belt conveyor 5 to prevent the precast blocks from falling during the conveying process.

[0032] In one set of embodiments

[0033] Please see Figures 1-3 The vibration mechanism 4 includes contact plates 41 located on the left and right sides of the rear of the frame 1. Vertical rods 42, which are fixed to the bottom of the contact plates 41 by bolts, slide through the crossbeam 11 on the frame 1. The bottom ends of multiple sets of vertical rods 42 are fixed to a base plate 43. A vibration motor 44 is installed on the base plate 43. At the same time, a vibration spring 45 is connected between the vertical rods 42 and the crossbeam 11. Vibration isolation pads can be set at the connection between the crossbeam 11 and the frame 1 for vibration reduction.

[0034] When the two sets of U-shaped arms 3 rotate to the rear side of the frame 1 and are placed flat above the vibration mechanism 4, the two sets of contact plates 41 are respectively located directly below the two sets of U-shaped arms 3; the two sets of contact plates 41 respectively contact the left and right convex edges of the mold box. Under the action of the vibration motor 44, the contact plates 41 vibrate up and down. By reasonably adjusting the parameters of the vibration motor 44 (such as vibration frequency, amplitude, etc.), the mold box can be effectively separated from the precast block. However, it should be noted that in practical applications, the vibration parameters should be optimized and adjusted according to the material, size and other factors of different precast blocks and mold boxes to achieve the best demolding effect.

[0035] In one set of embodiments

[0036] Please see Figure 1 , Figure 2 An elastic pressing member 6 is installed through the side of the U-shaped arm 3 that is close to the contact plate 41. One end of the elastic pressing member 6 extends into the U-shaped opening and presses against the convex edge, while the other end contacts the contact plate 41 when it is close to the contact plate 41. The contact plate 41 achieves contact with the convex edge of the mold box through the elastic pressing member 6. Multiple sets of elastic pressing members 6 are distributed sequentially along the length direction of the U-shaped arm 3, that is, multiple sets of elastic pressing members 6 cooperate to press against the length direction of the convex edge.

[0037] The elastic pressing component 6 includes a slide rod 61 that slides through the U-shaped arm 3 near the contact plate 41 into the U-shaped opening. The other end of the slide rod 61 is connected to the U-shaped arm 3 by a pressure spring 62. The end of the slide rod 61 that extends into the U-shaped opening is an outwardly convex arc end. When the U-shaped arm 3 is placed flat on the front side of the frame 1, the bottom end of the slide rod 61 is close to the bottom wall of the U-shaped opening. At this time, the convex edge of the mold box can be slid into the U-shaped opening along the bottom wall of the U-shaped opening. During the sliding process, the convex edge contacts the arc end of the slide rod 61, and the convex edge can smoothly push up the slide rod 61. The pressure spring 62 is used to initially press the convex edge.

[0038] During the backward flipping of the U-shaped arm 3, the sliding rod 61 and the pressure spring 62 can buffer the mold box during the flipping process, preventing the convex edge from directly hitting the other wall of the U-shaped opening, thus protecting the mold box and the precast block. When the U-shaped arm 3 flips to the rear, the sliding rod 61 moves down and the pressure spring 62 is stretched. At this time, the bottom end of the sliding rod 61 contacts the contact plate 41. The vibration of the contact plate 41 is used to transmit the vibration force to the mold box through the vertical rod 42 and the sliding rod 61, thus realizing the effective transmission of vibration force. The vibration spring 45 plays the role of buffering and adjusting the vibration frequency, so that the contact plate 41 can stably transmit the vibration force to the mold box, which helps to achieve efficient demolding.

[0039] In one set of embodiments

[0040] Please see Figure 1 A base frame 10 is bolted to the front side of the frame 1 below the U-shaped arm 3 (the installation height of the base frame 10 can be adjusted for adaptability). The base frame 10 is used to place the mold box, and multiple sets of rollers 101 are distributed along the length of the base frame 10.

[0041] This design greatly reduces the difficulty for workers to place the mold box on the U-shaped arm, reduces manpower consumption, and improves the ease of operation. The friction-reducing contact between the roller 101 and the bottom wall of the mold box makes it easy to push the mold box even with a small force, which is especially suitable for heavier mold boxes.

[0042] In one set of embodiments

[0043] Please see Figure 2 A motor is fixed in the motor housing on the frame 1, and the output shaft of the motor is fixedly connected to the connecting shaft on the side of the connecting frame 2, which is rotatably connected to the frame 1. The connecting frame 2 is electrically driven to rotate back and forth. (The motor selection should be based on the total weight and moment of inertia of the connecting frame 2, the U-shaped arm, and the mold box to ensure that the motor can provide sufficient torque to drive the connecting frame 2 to rotate. Simultaneously, an existing corresponding motor control system is also required to realize functions such as forward and reverse rotation and speed adjustment of the motor to adapt to different working requirements.)

[0044] To ensure that the connecting frame 2 can be accurately positioned when it rotates to the front and rear sides, a limit switch 8 is installed on the frame 1, and a corresponding protrusion 9 is fixed on the connecting frame 2. When the connecting frame 2 rotates to the preset position, the protrusion 9 approaches the limit switch 8 on the corresponding side and triggers it, causing the motor electrically connected to it to stop rotating, thus preventing the connecting frame 2 from rotating excessively and ensuring the normal operation and safety of the equipment.

[0045] In one set of embodiments

[0046] Please see Figures 2-4 Both sets of U-shaped arms 3 are slidably connected to the connecting frame 2, and a double-headed adjusting screw 7 is rotatably installed inside the connecting frame 2. The ends of both sets of U-shaped arms 3 are threaded to both sides of the double-headed adjusting screw 7 through threaded holes. The setting of the adjusting screw makes it easy to adjust the distance between the two sets of U-shaped arms 3 to adapt to mold boxes of different widths, which greatly improves the versatility of the equipment.

[0047] Meanwhile, the contact plate 41 and the vertical rod 42 are also detachably connected. By changing the left and right installation position and installation height of the contact plate 41, the position of the two contact plates 41 can be adjusted to match the position of the two sets of U-shaped arms 3.

[0048] During use, this solution requires daily maintenance of each component according to the established maintenance plan to ensure its working condition.

[0049] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0050] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precast block demolding aid tool, comprising a frame (1), characterized in that: A connecting frame (2) is rotatably installed on the top front side of the frame (1), and two sets of U-shaped arms (3) are symmetrically installed on the left and right sides of the connecting frame (2). The opening of each set of U-shaped arms (3) faces away from the connecting frame (2). When the two sets of U-shaped arms (3) are rotated to the front side of the frame (1) and laid flat, the protruding edges on the left and right sides of the mold box opening containing the preformed blocks can be inserted into the U-shaped openings of the two sets of U-shaped arms (3) respectively. The width of the U-shaped opening is greater than the thickness of the convex edge; A vibration mechanism (4) is provided on the rear side of the frame (1). The vibration mechanism (4) is located above the frame (1) when the connecting frame (2) rotates backward and the two sets of U-shaped arms (3) rotate to the rear side of the frame (1) and are placed flat. At this time, the vibration mechanism (4) contacts the mold box and drives the convex edge to vibrate up and down in the U-shaped opening, and the precast block is taken out of the mold box. When the two sets of U-shaped arms (3) carrying the empty mold box rotate to the front side of the frame (1) again, the top opening of the mold box faces upward again to achieve reset.

2. The precast block demolding aid tool according to claim 1, characterized in that: The vibration mechanism (4) includes contact plates (41) located on the left and right sides of the rear of the frame (1). The bottom of the contact plates (41) slides through the crossbeam (11) on the frame (1) via vertical rods (42). The bottom ends of multiple sets of vertical rods (42) are fixed to a base plate (43). A vibration motor (44) is installed on the base plate (43). At the same time, a vibration spring (45) is connected between the vertical rods (42) and the crossbeam (11). The contact plate (41) is used to contact the left and right convex edges of the mold box.

3. The precast block demolding aid tool according to claim 2, characterized in that: A belt conveyor (5) is installed on the rear side of the frame (1), and the conveyor belt on the belt conveyor (5) is located between two sets of contact plates (41).

4. A precast block demolding aid tool according to claim 2 or 3, characterized in that: An elastic pressing member (6) is installed through the side of the U-shaped arm (3) that is close to the contact plate (41), and multiple sets of the elastic pressing member (6) are distributed sequentially along the length direction of the U-shaped arm (3); The elastic pressing member (6) includes a slide rod (61) that slides through the U-shaped arm (3) near the wall of the contact plate (41) and enters the U-shaped opening, and a pressure spring (62) is connected between the protruding part of the other end of the slide rod (61) and the U-shaped arm (3). The end of the slide rod (61) that extends into the U-shaped opening presses against the convex edge; When the U-shaped arm (3) is flipped to lie flat on the rear side, the slide bar (61) contacts the contact plate (41).

5. The precast block demolding aid tool according to claim 4, characterized in that: A base frame (10) is fixed on the front side of the frame (1) below the U-shaped arm (3). The base frame (10) is used to place the mold box, and multiple sets of rollers (101) are distributed along the length direction on the base frame (10).

6. The precast block demolding aid tool according to claim 5, characterized in that: Both sets of U-shaped arms (3) are slidably connected to the connecting frame (2) on the left and right, and a double-headed adjusting screw (7) is rotatably installed in the connecting frame (2). The ends of both sets of U-shaped arms (3) are threadedly connected to the two sides of the double-headed adjusting screw (7) through threaded holes. Meanwhile, the spacing between the two sets of contact plates (41) can be adjusted.

Images