Green body demolding device

Abstract

The application provides a green body demoulding device, which comprises a main frame, vertically guiding mechanisms symmetrically arranged on both sides of the main frame, a lifting driving source connected with the vertically guiding mechanisms, bases connected with the vertically guiding mechanisms, and a cutting unit arranged between the two bases. The cutting unit comprises connecting arms connected with the end portions of the bases and U-shaped cutter bodies symmetrically arranged at the end portions of the connecting arms and opening downward. In the application, the vertically guiding mechanisms are symmetrically arranged on both sides of the main frame, the lifting driving source is connected with the vertically guiding mechanisms to drive the cutting unit to lift, the bases are connected with the vertically guiding mechanisms and bear the cutting unit, the connecting arms of the cutting unit are connected with the end portions of the bases, the end portions of the connecting arms are symmetrically provided with the U-shaped cutter bodies opening downward, the U-shaped cutter bodies limit the loose skins generated by cutting in the inner side through cavity design and guide the loose skins to fall away from the outer side of the green body, so that the loose skins are avoided from directly falling on the surface of the green body, and the appearance quality and structural integrity of the finished aerated brick are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of peeling aerated brick blanks, and in particular to a blank demolding device. Background Technology

[0002] In the production process of aerated concrete blocks (aerated bricks), after the preform has completed static foaming, it needs to be cut and peeled. At this time, the preform has a high moisture content and low strength, so special care must be taken during the peeling operation to avoid causing secondary damage to the preform. Since the bottom surface of the preform is in direct contact with the conveying device, there is no excess skin in this area. Therefore, the peeling operation mainly targets the top surface and side walls of the preform.

[0003] The specific process is as follows: First, the horizontally placed blank is rotated 90° using a tilting table, making it stand vertically on the cutting table. During the rotation, the skin originally located on the top surface naturally falls off due to gravity. Then, the vertical cutting device lowers the cutting frame with built-in high-strength blades from the top of the blank at a uniform speed through the top hoisting system, precisely cutting along the vertical direction to peel off the loose or irregular skin layers that have not completely fallen off on the two sides and the top surface. The key to this operation is that although some skin has fallen off the top surface after rotation, a loose and irregular skin layer still remains; while the two side walls form new vertical surfaces after the blank is placed vertically, and the original intact skin on their surfaces needs to be cut off to ensure the dimensional accuracy and surface quality of subsequent processing.

[0004] However, existing vertical cutting devices have problems in practical applications: after the cutting device completes the peeling operation, the blades need to be reset to their initial position via a top hoisting system. At this time, the loose skin adhering to the blade surface during the cutting process gradually falls off due to gravity—because some of the top skin naturally falls off after being flipped, leaving a loose thin layer, the amount of skin adhering to the top blade is small; while the skin on both sides is intact and of uniform thickness, resulting in a large contact area and strong adhesion during cutting, causing a large amount of skin to adhere to the inner wall of the blades on both sides. These detached skin fragments fall directly onto the top or side wall surface of the blank after the peeling process has been completed. Since the blank is now in a vertical position and the skin layer has been peeled off, its surface material is relatively loose. The fallen skin fragments not only cause local contamination (such as residual debris on the surface), but more importantly, the difference in adhesion between the fragments and the blank material makes it prone to micro-cracks in the contact area due to inconsistent shrinkage and expansion during subsequent handling or autoclaving, under the influence of temperature and humidity changes. Ultimately, this seriously affects the appearance quality and structural integrity of the finished aerated concrete block. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art where, when the vertical cutting device is reset, the sticky skin fragments fall off due to gravity and contaminate the surface of the peeled embryo, causing localized damage and micro-cracks due to material differences during subsequent handling and autoclaving, thus affecting the appearance and structural integrity of the finished product.

[0006] To achieve the above objectives, this application proposes a blank demolding device, comprising: a main frame; vertical guide mechanisms symmetrically arranged on both sides of the main frame; a lifting drive source connected to the vertical guide mechanisms; a base connected to the vertical guide mechanisms; and a cutting unit disposed between the two bases; the cutting unit comprising: A connecting arm that connects to the end of the base; The U-shaped blade is symmetrically arranged at the end of the connecting arm and has its opening facing downwards.

[0007] In the blank demolding device of this application, the main frame serves as a supporting foundation, with vertical guide mechanisms symmetrically arranged on both sides. A lifting drive source is connected to the vertical guide mechanisms to drive the cutting unit to rise and fall. The base is connected to the vertical guide mechanisms and supports the cutting unit. The connecting arm of the cutting unit is connected to the end of the base, and its end is symmetrically equipped with U-shaped blades with downward openings. The U-shaped blades, through the cavity design, restrict the loose skin generated by cutting to the inside and guide it to fall off to the outside away from the blank, avoiding it from falling directly onto the surface of the blank. With the precise control of the cutting trajectory by the vertical guide mechanism and the lifting drive source, the skin residue is effectively reduced, surface contamination caused by fragments and subsequent micro-cracks are eliminated, and the appearance quality and structural integrity of the finished aerated concrete block are improved.

[0008] Furthermore, to facilitate peeling and cutting, a cutting edge is provided at the lower opening of the U-shaped blade near the side of the blank.

[0009] Furthermore, in order to ensure that the chips are smoothly discharged along the expanding inner wall during cutting, the inner wall of the U-shaped blade body connected to the cutting edge is configured to expand gradually from bottom to top.

[0010] Furthermore, to facilitate the installation and positioning of the U-shaped cutter body, the other inner wall opposite to the inner wall where the cutting edge is located is set as a vertical plane perpendicular to the bottom surface of the demolding device.

[0011] Furthermore, in order to connect the connecting arm to the U-shaped blade body, the connecting arm and the U-shaped blade body are installed through an L-shaped connecting plate.

[0012] Furthermore, in order to achieve high-rigidity fixation of the connecting arm and the U-shaped cutter body through the through bolt holes and the end face abutment structure, the side wall of the L-shaped connecting plate is provided with bolt holes that penetrate the plate body. The bolt fasteners pass through the bolt holes and abut against the end faces of the connecting arm and the U-shaped cutter body respectively to complete the installation.

[0013] Furthermore, in order to enhance the connection rigidity between the base and the vertical guide mechanism, a reinforcing plate provided on the top surface of the base and the ground is connected to the vertical guide mechanism.

[0014] The beneficial effects of this application are as follows: 1. In the blank demolding device of this application, the main frame serves as a supporting foundation, with vertical guide mechanisms symmetrically arranged on both sides. The lifting drive source is connected to the vertical guide mechanism to drive the cutting unit to rise and fall. The base is connected to the vertical guide mechanism and carries the cutting unit. The connecting arm of the cutting unit is connected to the end of the base, and its end is symmetrically equipped with U-shaped blades with downward openings. The U-shaped blades, through the cavity design, restrict the loose skin generated by cutting to the inside and guide it to fall off to the outside away from the blank, avoiding it from falling directly onto the surface of the blank. With the precise control of the cutting trajectory by the vertical guide mechanism and the lifting drive source, the skin residue is effectively reduced, surface contamination caused by fragments and subsequent micro-cracks are eliminated, and the appearance quality and structural integrity of the finished aerated concrete block are improved.

[0015] 2. The cutting edge located at the lower opening of the U-shaped blade body, near the blank body, can directly cut into the epidermis, reducing cutting resistance and improving peeling efficiency. The inner wall connecting the cutting edge adopts a bottom-to-top gradually expanding design, forming a smooth chip removal channel, allowing the chips generated during cutting to be quickly discharged along the expanding inner wall, avoiding blockage of the blade body cavity and ensuring continuous and stable cutting. The inner wall opposite the cutting edge is set as a vertical plane perpendicular to the bottom surface, providing a precise positioning reference for cutting, ensuring that the cutting trajectory is completely aligned with the vertical plane of the blank body, and reducing dimensional deviations. The synergistic effect of these three elements achieves highly efficient peeling and cutting.

[0016] 3. The anti-stick coating on the inner wall surface of the U-shaped cutter body in this application reduces the adhesion between the blank material and the inner wall of the U-shaped cutter body during the cutting process, further reducing the risk of skin residue, thereby reducing the frequency of cleaning after the equipment is running. At the same time, the L-shaped connecting plate that is easy to disassemble achieves high rigidity fixation between the connecting arm and the U-shaped cutter body, while facilitating quick replacement of the U-shaped cutter body.

[0017] 4. The L-shaped connecting plate of this application features through bolt holes on its sidewalls, which, combined with the end-face clamping structure, achieves high-rigidity fixation between the connecting arm and the U-shaped blade body. This prevents the blade body from loosening or shifting due to vibration during cutting, ensuring cutting accuracy. The reinforcing plates on the top surface of the base and the ground enhance the connection rigidity between the base and the vertical guide mechanism, preventing deformation due to uneven force during the lifting and lowering of the cutting unit, and ensuring the verticality and stability of the cutting trajectory. This effectively reduces equipment maintenance costs and manual labor intensity, improving overall production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a blank demolding device according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a blank demolding device in an embodiment of this application after concealing an L-shaped connecting plate; Figure 3 This is a schematic diagram of the cutting unit in an embodiment of this application; Figure 4 This is a schematic diagram of the U-shaped blade body in the embodiments of this application.

[0020] Explanation of reference numerals in the attached figures: 1. Main unit rack; 2. Vertical guide mechanism; 3. Lifting drive source; 4. Base; 5. Cutting unit; 51. Connecting arm; 52. U-shaped blade body; 521. Cutting edge; 53. L-shaped connecting plate; 6. Reinforcing plate; 7. Embryonic body. Detailed Implementation

[0021] The following will be combined with the appendix Figures 1-4 The embodiments of the technical solutions of this application are described in detail below. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0022] Example 1 This embodiment relates to the technical effects of preventing epidermal fragments from falling and contaminating the surface of the embryo, reducing surface damage and subsequent microcracks. For example... Figure 1 , Figure 3 , Figure 4 As shown, the blank demolding device includes a main frame 1, which serves as a supporting base. Vertical guide mechanisms 2 are symmetrically arranged on both sides. The vertical guide mechanisms 2 are connected to a lifting drive source 3, which drives the vertical guide mechanisms 2 to move the cutting unit 5 vertically. A base 4 is fixedly connected to the vertical guide mechanisms 2 and is used to support the cutting unit 5. The cutting unit 5 includes a connecting arm 51 and U-shaped blades 52 symmetrically arranged at the ends of the connecting arm 51, with the U-shaped blades 52 opening downwards.

[0023] Specifically, during the cutting process, the U-shaped blade 52 moves along the top surface and side walls of the blank 7, and the loose skin produced by the cutting is confined within the U-shaped cavity of the U-shaped blade 52. Since the U-shaped blade 52 opens downward and the cavity has a U-shaped structure, after the cutting is completed, when the cutting unit 5 is reset with the lifting drive source 3, the skin fragments adhering to the inner wall of the U-shaped blade 52 fall off along the cavity away from the outside of the blank 7 under the action of gravity, instead of falling directly onto the top surface or side wall surface of the blank 7 that has been peeled. This avoids the skin fragments from damaging the surface of the blank 7, and at the same time reduces the micro-cracks caused by the difference in material between the fragments and the blank during subsequent handling or autoclaving, thus improving the appearance quality and structural integrity of the finished aerated concrete block.

[0024] Example 2 This embodiment relates to the technical effect of achieving efficient peeling and cutting. For example... Figure 3 , Figure 4 As shown, a cutting edge 521 is provided at the lower opening of the U-shaped cutter body 52 near the blank body 7. The cutting edge 521 can directly cut into the loose epidermal layer of the top surface and side wall of the blank body 7, reducing cutting resistance and improving peeling efficiency. The inner wall of the U-shaped cutter body 52 connected to the cutting edge 521 is set to gradually expand from bottom to top. During the peeling process, the cut skin moves along the gradually expanding inner wall. Due to the gradual expansion of the inner wall, on the one hand, the gradually expanding inner wall (the width gradually increases from bottom to top) can form a natural chip removal channel. During cutting, the leather moves upward along the inner wall after being cut off. The expanding trend of the inner wall reduces the contact area between the leather and the blade on the vertical end face, thereby reducing friction and promoting leather removal. On the other hand, when the leather contacts the expanding inner wall, the inclination angle of the inner wall causes the leather to be subjected to a component force perpendicular to the normal direction of the inner wall (away from the direction of the blank). This component force can offset part of the adhesive force, reducing the probability of the leather sticking to the inner wall of the U-shaped blade 52, forming a smooth chip removal channel. The chips generated during the cutting process are quickly discharged along the expanding inner wall, avoiding blockage of the blade cavity and ensuring continuous and stable cutting. The other inner wall opposite to the inner wall where the cutting edge 521 is located is set as a vertical plane perpendicular to the bottom surface of the demolding device. This vertical plane provides a precise positioning reference for cutting, ensuring that the cutting trajectory is completely aligned with the vertical plane of the blank 7, reducing dimensional deviations. The cutting edge 521, the gradually expanding inner wall, and the vertical plane work together to achieve efficient and precise peeling and cutting: the cutting edge 521 reduces cutting resistance, the gradually expanding inner wall facilitates chip removal, and the vertical plane provides precise positioning.

[0025] Example 3 This embodiment relates to the technical advantages of facilitating blade replacement. As a preferred solution, the connecting arm 51 and the U-shaped blade 52 are installed via an L-shaped connecting plate 53. The side wall of the L-shaped connecting plate 53 has bolt holes that penetrate the plate. Bolts pass through these holes and abut against the end faces of the connecting arm 51 and the U-shaped blade 52, achieving high-rigidity fixation and preventing blade loosening or displacement due to vibration during cutting, thus ensuring cutting accuracy. Simultaneously, the installation method of the L-shaped connecting plate 53 facilitates quick disassembly. When the U-shaped blade 52 needs replacement, it can be removed simply by loosening the bolts, reducing maintenance difficulty.

[0026] Example 4 This embodiment relates to the technical effects of strengthening the connection rigidity between the base and the vertical guide mechanism, ensuring the stability of the cutting trajectory, and achieving rapid positioning of the U-shaped blade. For example... Figure 1 , Figure 2 , Figure 3 As shown, reinforcing plates 6 are provided on the top and bottom surfaces of the base 4. The reinforcing plates 6 are fixedly connected to the guide rail 21 or nut seat 24 of the vertical guide mechanism 2 by bolts. By increasing the contact area and connection strength between the base 4 and the vertical guide mechanism 2, the connection rigidity between the base 4 and the vertical guide mechanism 2 is strengthened, preventing deformation due to uneven force during the lifting and lowering of the cutting unit 5. When the cutting unit 5 lifts and lowers, the vertical guide mechanism 2 transmits the driving force evenly to the base 4 through the reinforcing plates 6, ensuring that the cutting unit 5 moves stably in the vertical direction. The verticality and stability of the cutting trajectory are guaranteed, thereby improving cutting accuracy and finished product quality.

[0027] For the connection between the U-shaped cutter body 52 and the connecting arm 51, an L-shaped connecting plate 53 is used to achieve rapid positioning and high-rigidity fixation. The L-shaped connecting plate 53 has two mutually perpendicular sidewalls. During assembly, only one sidewall of the L-shaped connecting plate 53 needs to be brought close to the inner wall of the end face of the connecting arm 51, and the other sidewall needs to be brought close to the inner wall of the end face of the U-shaped cutter body 52. ​​The perpendicularity positioning of the connecting arm 51 and the U-shaped cutter body 52 can be automatically completed through the reference plane of the two perpendicular sidewalls, without the need for additional adjustments, thus simplifying the assembly process. The sidewall of the L-shaped connecting plate 53 is provided with bolt holes that penetrate the plate. After the bolt fastener passes through the bolt hole, one end abuts against the end face of the connecting arm 51, and the other end abuts against the end face of the U-shaped cutter body 52, forming a rigid connection through the end face abutment structure. This connection method not only ensures the effective transmission of force during the cutting process and avoids loosening or displacement of the blade body due to vibration, but also further guarantees the vertical relationship between the connecting arm 51 and the U-shaped blade body 52 through the constraint of the vertical side wall of the L-shaped connecting plate 53, thereby improving the accuracy of the cutting trajectory.

[0028] The rapid positioning function of the L-shaped connecting plate 53 and the rigidity reinforcement function of the reinforcing plate 6 work synergistically: the L-shaped connecting plate 53 ensures the assembly accuracy of key components of the cutting unit 5 through the reference positioning of the vertical sidewall; the reinforcing plate 6 ensures the stability of the cutting unit 5 during lifting by reinforcing the connection between the base 4 and the vertical guide mechanism 2. Together, they improve the overall performance of the equipment in terms of both assembly accuracy and motion stability, reduce maintenance costs and manual labor intensity, and increase production efficiency.

[0029] As a preferred embodiment, the vertical guide mechanism 2 can adopt a guide rail-slider structure: when the vertical guide mechanism 2 adopts a guide rail-slider structure, vertical guide rails are fixedly installed on both sides of the main frame 1, and longitudinal grooves are opened on the surface of the guide rails; sliders are fixedly connected to both sides of the base by bolts, and the sliders are embedded in the grooves of the guide rails to form a sliding fit. The lifting drive source 3 can be a hydraulic cylinder, the cylinder body of the hydraulic cylinder is fixed to the top of the main frame 1 by a hinge seat, and the end of the piston rod is hinged to the ear seat in the middle of the top surface of the base 4 by a fisheye joint. When the hydraulic cylinder is driven, the piston rod extends and retracts, causing the base 4 to rise and fall vertically along the guide rail, and the slider slides in the groove to ensure that the movement trajectory is vertical.

[0030] As a preferred implementation, the vertical guide mechanism 2 adopts a gear and rack structure, and the lifting drive source 3 uses a dual-axis motor to drive two rotating shafts, with gears installed at the ends of the rotating shafts. The specific structure and connection relationship are as follows: Vertical racks are bolted to both sides of the main frame 1, with the rack teeth facing outwards. The base 4 is fixed to the racks on both sides via connecting seats, which are bolted to the sides of the base 4 and the back of the racks, forming a rigid connection. The lifting drive source 3 uses a dual-axis motor, fixed to the middle of the crossbeam at the top of the main frame 1 via a motor mount. Its two output shafts are connected to two rotating shafts via couplings 34. The rotating shafts are horizontally positioned, with both ends connected to the top of the main frame 1 via bearing seats 36. Self-aligning roller bearings are installed in the bearing seats 36 to withstand radial loads. Gears are fixed to the ends of the rotating shafts via flat keys, meshing with the rack teeth to form a rack and pinion transmission pair.

[0031] To ensure the verticality of the base 4 during lifting, auxiliary guide rails are also provided on both sides of the main frame 1. The guide rails are fixedly connected to the T-slots on the side of the main frame 1 by T-bolts. Guide blocks are fixedly provided on both sides of the base 4 by bolts. The guide blocks are embedded in the sliding grooves of the guide rails to form a sliding fit. The contact surfaces of the guide rails and guide blocks are coated with grease to reduce friction.

[0032] Specifically, when the dual-axis motor starts, the two output shafts rotate synchronously, driving the rotating shaft to rotate via coupling 34. The gear at the end of the rotating shaft rotates accordingly. The gear meshes with the rack, converting the rotational motion into linear lifting motion of the rack and base 4. The sliding engagement between the auxiliary guide rail and the guide block physically constrains the movement trajectory of the base 4, ensuring its vertical lifting.

[0033] In the description of the embodiments of this application, the technical terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0034] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "set," "equipped with," "connected," and "installed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A blank demolding device, comprising: Main frame (1); vertical guide mechanism (2) symmetrically arranged on both sides of the main frame (1); lifting drive source (3) connected to the vertical guide mechanism (2); base (4) connected to the vertical guide mechanism (2); characterized in that a cutting unit (5) is provided between the two bases (4); the cutting unit (5) includes: a connecting arm (51) connected to the end of the base (4); and a U-shaped blade (52) symmetrically arranged at the end of the connecting arm (51) and opening downward.

2. The blank demolding device according to claim 1, characterized in that, The U-shaped cutter body (52) has a cutting edge (521) at the lower opening near the blank.

3. The blank demolding device according to claim 2, characterized in that, The inner wall of the U-shaped cutter body (52) connected to the cutting edge (521) is gradually expanded from bottom to top.

4. The blank demolding device according to claim 2, characterized in that, The inner wall of the U-shaped blade (52) opposite to the inner wall where the cutting edge (521) is located is set as a vertical plane perpendicular to the bottom surface of the demolding device.

5. The blank demolding device according to claim 1, characterized in that, The connecting arm (51) and the U-shaped blade body (52) are installed through the L-shaped connecting plate (53).

6. The blank demolding device according to claim 5, characterized in that, The side wall of the L-shaped connecting plate (53) is provided with bolt holes that penetrate the plate body. The bolt fasteners pass through the bolt holes and abut against the end faces of the connecting arm (51) and the U-shaped blade (52) respectively to complete the installation.

7. The blank demolding device according to claim 1, characterized in that, The top surface of the base (4) is provided with a reinforcing plate (6) connected to the ground and the vertical guide mechanism (2).

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