A stripper

Abstract

The application relates to the auxiliary technology field of asphalt sample production and discloses a demolding machine, which comprises a material ejection mechanism for ejecting samples to separate the samples from molds; the material ejection mechanism comprises a fixed part, a driving part and a material ejection part, the fixed end of the driving part is connected with the fixed part, and the driving end of the driving part is connected with the material ejection part; the driving part comprises a plurality of first air cylinders and a plurality of second air cylinders, the plurality of first air cylinders are arranged in a ring array, the plurality of second air cylinders are arranged in a ring array, and the second air cylinders are arranged between the central axis of the fixed part and the first air cylinders; the material ejection part comprises a first material ejection block and a second material ejection block, the first material ejection block is arranged around the edge of the second material ejection block, the first material ejection block is drivingly connected with the first air cylinders, and the second material ejection block is drivingly connected with the second air cylinders. The application realizes stable demolding of samples with different sizes through the switchable double-cylinder driving structure, effectively solves the problem of uneven stress, and significantly improves the finished product rate and production efficiency.

Description

Technical Field

[0001] This application belongs to the field of auxiliary technology for asphalt sample production, specifically relating to a demolding machine. Background Technology

[0002] In the asphalt sample production process, the demolding machine plays a crucial role in removing the molded sample from the mold.

[0003] Currently, demolding machines struggle to flexibly adapt to and successfully lift samples of varying sizes, preventing some samples from undergoing subsequent demolding operations and severely impacting production continuity and efficiency. Therefore, some companies are setting the area of ​​the lifting section in contact with the sample to a smaller size, thus enabling them to handle demolding operations with molds of multiple sizes.

[0004] However, the lifting part of this method cannot cover a large area of ​​the sample, making the sample easily damaged during demolding due to uneven force, which seriously affects the integrity of the sample and the yield, resulting in product scrap and increased production costs. Utility Model Content

[0005] To address the shortcomings of the prior art, this application provides a demolding machine that achieves stable demolding of samples of different sizes through a switchable dual-cylinder drive structure, effectively solving the problem of uneven force distribution and significantly improving yield and production efficiency.

[0006] The technical effects to be achieved in this application are realized through the following aspects:

[0007] This application provides a demolding machine, including an ejector mechanism for ejecting a sample to separate the sample from the mold; the ejector mechanism includes a fixing part, a driving part, and an ejector component, the fixing end of the driving part is connected to the fixing part, and the driving end of the driving part is connected to the ejector component;

[0008] The driving component includes a plurality of first cylinders and a plurality of second cylinders, the plurality of first cylinders being arranged in a circular array, the plurality of second cylinders being arranged in a circular array, and the second cylinders being located between the central axis of the fixed part and the first cylinders.

[0009] The top material component includes a first top material block and a second top material block. The first top material block surrounds the edge of the second top material block, and the first top material block is driven and connected to the first cylinder, and the second top material block is driven and connected to the second cylinder.

[0010] Specifically, when demolding smaller samples, the second cylinder drives the second ejector block to lift the sample and demold it; when demolding larger samples, the first cylinder and the second cylinder drive synchronously to simultaneously drive the first ejector block and the second ejector block to lift the sample and demold it.

[0011] In some implementations, the first cylinder and the second cylinder are misaligned.

[0012] In some implementations, the upper end of the fixing part is provided with a plurality of annular support blocks in sequence, the annular support blocks being used to place the top material component; a placement groove is formed between adjacent annular support blocks, the placement groove being used to place the driving component.

[0013] In some implementations, the demolding machine further includes a material holding mechanism, which includes symmetrically arranged guide rods, support components, and pressure components;

[0014] The support component is movably connected to the guide rod on both sides;

[0015] The pressing component is arranged parallel to the supporting component, and its two sides are connected through the guide rod.

[0016] Both the supporting component and the pressing component are provided with demolding holes, which are opposite to the ejector component; the supporting component is used to support the mold, and the pressing component is used to fix the upper end of the mold.

[0017] In some implementations, the guide rod has a guide groove on one side and threaded holes on both sides of the guide groove.

[0018] In some implementations, the support component includes a first plate, a first movable hole, and a first locking member. The first movable hole is located on both sides of the first plate and is provided corresponding to the guide rod. The first locking member is inserted into the first movable hole and is locked to the threaded hole.

[0019] In some implementations, a first guide block is provided in the first movable hole, the first guide block is fitted into the guide groove, the first guide block is provided with a first connecting hole corresponding to the threaded hole, and the first locking member is used to sequentially pass through the threaded hole and the first connecting hole to lock the support member and the guide rod.

[0020] In some implementations, the pressing component includes a second plate, a second movable hole, and a second locking member. The second movable hole is located on both sides of the second plate and is provided corresponding to the guide rod. The second locking member is inserted into the second movable hole and is locked to the threaded hole.

[0021] In some implementations, a second guide block is provided in the second movable hole, the second guide block is fitted into the guide groove, the second guide block is provided with a second connecting hole corresponding to the threaded hole, and the second locking member is used to sequentially pass through the threaded hole and the second connecting hole to lock the support member and the guide rod.

[0022] In some implementations, the edge of the demolding hole is provided with a limiting groove, which is used to limit the mold.

[0023] In summary, this application has at least the following advantages:

[0024] The demolding machine provided in this application includes an ejector mechanism for ejecting samples to separate them from the mold. The ejector mechanism includes a fixing part, a driving part, and an ejector component. It drives the corresponding ejector blocks by setting a first cylinder and a second cylinder in a ring array. When processing small-sized samples, it uses central area ejection, and when processing large-sized samples, it uses dual-area coordinated ejection. It can accurately control the contact area of ​​the ejector, avoid local stress concentration, and has the advantages of achieving stable demolding of samples of different sizes through a switchable dual-cylinder drive structure, effectively solving the problem of uneven force, and significantly improving the yield and production efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the top material mechanism in Embodiment 1 of this application.

[0026] Figure 2 This is another structural schematic diagram of the top material mechanism in Embodiment 1 of this application (excluding the top material component).

[0027] Figure 3 This is a schematic diagram of the demolding machine in Embodiment 2 of this application.

[0028] Figure 4 This is a schematic diagram of the demolding machine in Embodiment 2 of this application from a bottom-view perspective.

[0029] Figure 5 This is a top view of the support component in Embodiment 3 of this application.

[0030] Figure 6 This is a bottom view of the pressing component in Embodiment 3 of this application.

[0031] Marked in the image:

[0032] 1. Ejector mechanism, 11. Fixing part, 111. Annular support block, 112. Placement groove, 12. Driving component, 121. First cylinder, 122. Second cylinder, 13. Ejector component, 131. First ejector block, 132. Second ejector block; 2. Material fixing mechanism, 21. Guide rod, 211. Guide groove, 212. Threaded hole, 22. Support component, 221. First plate, 222. First movable hole, 223. First locking component, 224. First guide block, 225. First connecting hole, 23. Pressing component, 231. Second plate, 232. Second movable hole, 233. Second locking component, 234. Second guide block, 235. Second connecting hole, 24. Demolding hole, 241. Limiting groove. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, not all embodiments.

[0034] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0035] Example 1:

[0036] Please see the appendix Figure 1 This application proposes a demolding machine including an ejector mechanism 1, which comprises a fixed part 11, a driving part 12, and an ejector part 13. The driving part 12 includes a first cylinder 121 arranged in a ring and a second cylinder 122 located between the central axis of the fixed part 11 and the first cylinder 121. The ejector part 13 includes a second ejector block 132 surrounded by a first ejector block 131, the first ejector block 131 being connected to the first cylinder 121, and the second ejector block 132 being connected to the second cylinder 122. When processing small samples, only the second cylinder 122 is activated to drive the second ejector block 132; when processing large samples, both sets of cylinders are driven simultaneously.

[0037] The annular array in the drive component 12 refers to the cylinders being distributed at equal angles along the circumference. Specifically, four cylinders can be evenly distributed on a 300 mm diameter circle, forming a symmetrical distribution of force application points. The staggered arrangement of the first cylinder 121 and the second cylinder 122 means that the two sets of cylinders form an inner and outer double-ring layout in the radial position. Specifically, the installation radius of the second cylinder 122 can be 50 mm smaller than that of the first cylinder 121 to avoid motion interference. The nested structure of the ejector component 13 means that the second ejector block 132 is surrounded by the first ejector block 131. Specifically, a combination of a square inner ejector block and an annular outer ejector block can be used, with a 1 mm gap between the inner wall of the outer ejector block and the outer wall of the inner ejector block in the contracted state.

[0038] Specifically, when processing small samples with a diameter of 100 mm, the control system activates only the second set of cylinders 122. The second cylinder 122 pushes the second ejector block 132 upwards, while the first ejector block 131 remains stationary, and the lifting contact surface shrinks to the inner ejector block area. The central area of ​​the sample experiences a uniform ejection force, avoiding stress on the edges. When processing large samples with a diameter of 300 mm, both sets of cylinders operate simultaneously. The first ejector block 131 forms an annular support surface on its outer periphery, while the second ejector block 132 provides auxiliary lifting force at the center. The combined lifting surface covers more than 80% of the bottom area of ​​the sample. The synchronous movement of the two sets of ejector blocks is achieved through parallel air circuits, with air pressure entering the inlets of both cylinders simultaneously, ensuring the synchronicity of the lifting action.

[0039] This design utilizes a detachable ejector component 13 to create a compact contact surface during demolding of small samples and expand into a combined support surface during demolding of large samples. This achieves automatic matching of the ejector contact area with the sample size, eliminating stress concentration issues caused by excessively large or small contact surfaces. This ensures stable demolding of samples of different sizes, effectively improving yield and production efficiency. This structure allows the demolding machine to adapt to various sample sizes ranging from 100 mm to 350 mm in diameter, reducing the breakage rate from 12% of traditional equipment to below 2%.

[0040] In addition, the relative motion design of the nested top material component 13 avoids interference between multiple components and ensures the flatness of the combined top surface.

[0041] This application further proposes a staggered arrangement of the first cylinder 121 and the second cylinder 122.

[0042] The staggered arrangement refers to the alternating distribution of the first cylinder 121 and the second cylinder 122 along different circumferential directions or radii in the annular array arrangement, avoiding overlap of cylinder axes on the same circumference. Specifically, this can be achieved by placing the first cylinder 121 on the outer ring of the annular array and the second cylinder 122 on the inner ring, or by spacing the two sets of cylinders at a certain circumferential angle in the annular array, so that the cylinder drive ends do not conflict in position during extension and retraction.

[0043] Specifically, when the first cylinder 121 and the second cylinder 122 are staggered on the fixed part 11, the driving ends of each cylinder can maintain independent movement paths during sample ejection. For example, the first cylinder 121 drives the first ejector block 131 to eject along the outer ring, and the second cylinder 122 drives the second ejector block 132 to eject along the inner ring. The driving directions of the two sets of cylinders are complementary in space, avoiding mechanical interference during ejector block movement caused by overlapping cylinder axes. At the same time, the staggered layout optimizes the installation space of the cylinder assembly, reduces redundant occupation between cylinders, and ensures that the ejector component 13 can apply force evenly during synchronous driving.

[0044] Through the above technical solution, this application can eliminate the interference risk caused by the overlapping positions of the cylinders in the annular array layout, and improve the action stability of the ejector mechanism 1 when driving samples of different sizes. At the same time, the staggered arrangement makes the ejection directions of the first ejector block 131 and the second ejector block 132 independent and complementary, ensuring that the sample is subjected to uniform force during demolding, avoiding the problem of jamming or force deviation of the ejector component 13 due to the overlapping of the cylinder movement paths, thereby extending the service life of the cylinder and improving the demolding efficiency.

[0045] Please see the appendix Figure 2 This application further proposes that the upper end of the fixing part 11 is provided with a plurality of annular support blocks 111, the annular support blocks 111 being used to place the top material component 13; and a placement groove 112 is formed between adjacent annular support blocks 111, the placement groove 112 being used to place the driving component 12.

[0046] Among them, the annular support block 111 refers to the layered annular structure, which can be made of metal material into a concentric ring structure. The diameter of each annular support block 111 increases axially to form a stepped support surface, which is used to provide axial positioning reference for the top material components 13 of different sizes.

[0047] The placement groove 112 refers to the annular gap space between adjacent annular support blocks 111. Specifically, it can be achieved by adjusting the radial dimension difference between adjacent annular support blocks 111. This space is used to accommodate the installation of the drive component 12, so that the cylinder-type drive component 12 can be evenly distributed in the radial area between the annular support blocks 111 along the circumferential direction.

[0048] Specifically, the annular support blocks 111 are arranged in concentric rings on the upper end of the fixing part 11, forming multiple independent support planes. The ejector component 13 is placed on the upper surface of the annular support blocks 111, and its installation position is determined by the diameter parameter of the annular support blocks 111. The placement grooves 112 between adjacent annular support blocks 111 form an annular installation area around the central axis of the fixing part 11. The drive component 12 is embedded in the placement grooves 112 and fixed to the side wall of the fixing part 11. When the ejector component 13 moves with the drive component 12, the rigid support surface provided by the annular support blocks 111 can effectively disperse the lateral load generated during the ejection process, and the annular distribution characteristics of the placement grooves 112 keep the power output axes of the multiple drive components 12 consistent with the movement direction of the ejector component 13, avoiding torque imbalance caused by installation deviation.

[0049] Through the above technical solution, this application achieves the optimized spatial configuration of the drive component 12 in the radial and axial directions, ensuring that the ejector mechanism 1 maintains the linearity and synchronicity of power transmission during the ejection process, eliminating the ejection offset or shaking phenomenon caused by the mismatch of the support structure, thereby improving the stability of the demolding operation.

[0050] Example 2:

[0051] The difference between this embodiment and Embodiment 1 is that, please refer to... Figure 3 The demolding machine in this embodiment also includes a material fixing mechanism 2, which includes a guide rod 21, a support component 22, and a pressing component 23 arranged symmetrically. The two sides of the support component 22 are movably connected to the guide rod 21. The pressing component 23 is arranged parallel to the support component 22 and is connected to the guide rod 21 on both sides. Both the support component 22 and the pressing component 23 are provided with demolding holes 24, which are opposite to the ejector component 13. The support component 22 is used to support the mold, and the pressing component 23 is used to fix the upper end of the mold.

[0052] In this embodiment, the symmetrically arranged guide rods 21 are configured to provide bidirectional limiting. They engage with guide blocks on the support member 22 and the pressure member 23 via guide grooves 211, restricting the horizontal displacement of the mold. The support member 22 slides vertically along the guide rods 21 through movable holes on both sides. When the mold height changes, the fixed position of the support member 22 on the guide rods 21 is adjusted to maintain stable support for the bottom of the mold. The pressure member 23 is arranged parallel above the support member 22 and, after being fixed to the guide rods 21 by locking components, forms a rigid pressure on the top of the mold. The demolding holes 24 of the support member 22 and the pressure member 23 are coaxially aligned, ensuring that the ejector member 13 always moves along the central axis of the mold during the ejection process. When the ejector member 13 ejects the sample upwards, the bottom of the mold is supported by the support member 22, and the top is constrained by the pressure member 23. This bidirectional fixation effectively suppresses mold vibration or tilting.

[0053] Through the above technical solutions, this application effectively solves the displacement problem caused by uneven force during mold demolding. The bidirectional limiting function of the guide rod 21 eliminates the possibility of horizontal displacement of the mold, and the upper and lower clamping structure of the support component 22 and the pressure component 23 suppresses the vertical vibration of the mold. The alignment design of the demolding hole 24 ensures that the movement trajectory of the ejector component 13 coincides with the central axis of the mold, avoiding the phenomenon of uneven load during the lifting process. The stable fixation of the mold significantly reduces the internal stress of the sample caused by uneven force, and improves the yield rate of finished products. The adjustable position characteristics of the support component 22 and the pressure component 23 enable the demolding machine to quickly adapt to molds of different specifications, reducing equipment adjustment time.

[0054] Please see Figure 4 This application further proposes that the guide rod 21 has a guide groove 211 on one side and threaded holes 212 on both sides of the guide groove 211.

[0055] The guide groove 211 refers to a groove structure opened along the length of the guide rod 21, which can be achieved by milling or extrusion molding. It is used to form a sliding fit with the guide block in the movable hole to limit lateral displacement. The threaded hole 212 refers to a hole structure symmetrically distributed on both sides of the guide groove 211, which can be achieved by drilling and tapping. It is used to form a bidirectional symmetrical locking by engaging with the connecting hole of the guide block in the movable hole through the locking element.

[0056] Specifically, during the movement of the support component 22 or the pressure component 23 along the guide rod 21, the guide groove 211 engages with the guide block within the movable hole, ensuring that the component can only move along the straight line defined by the guide groove 211, thus preventing misalignment of the mold positioning due to lateral offset. When the component reaches the target position, the locking element passes sequentially through the threaded hole 212 and the connecting hole of the guide block, applying a bidirectional locking force through the symmetrically distributed threaded holes 212 to eliminate the component's shaking under the impact of the ejector. Furthermore, during disassembly, the locking element can be withdrawn from the threaded hole 212, and the guide block slides out along the guide groove 211, preventing the component from getting stuck during disassembly.

[0057] Through the above technical solution, this application achieves stable positioning and reliable locking of the support component 22 and the pressing component 23 on the guide rod 21, preventing the mold from shifting or shaking during the ejection process, while simplifying the component disassembly and assembly process and avoiding jamming problems during disassembly.

[0058] like Figure 4 This application further proposes that the edge of the demolding hole 24 is provided with a limiting groove 241, which is used to limit the mold.

[0059] Specifically, when the mold is placed on the support member 22, its outer edge is embedded inside the limiting groove 241. During the demolding process, when the ejector member 13 pushes the sample upward, the mold is constrained by the side wall of the limiting groove 241 and cannot produce horizontal displacement. At this time, the side wall of the limiting groove 241 forms a surface contact with the outer surface of the mold, so that the mold keeps its axis perpendicular when subjected to the ejection force. The limiting groove 241 and the demolding hole 24 of the pressure member 23 are coaxially arranged to ensure that both the upper and lower ends of the mold are constrained at the same time, preventing tilting caused by the ejection action.

[0060] Through the above technical solution, this application ensures that the mold remains in a predetermined position during the demolding process, guaranteeing uniform force distribution between the ejector block and the mold contact surface. The mold edge is physically constrained by the limiting groove 241, preventing unilateral stress concentration caused by the ejection action, thereby reducing the risk of structural damage to the sample during demolding.

[0061] Example 3:

[0062] The difference between this embodiment and Embodiment 1 is that, please refer to... Figure 5 This application further proposes that the support component 22 includes a first plate 221, a first movable hole 222 and a first locking member 223. The first movable hole 222 is provided on both sides of the first plate 221 and is provided corresponding to the guide rod 21. The first locking member 223 is inserted into the first movable hole 222 and is locked and connected with the threaded hole 212.

[0063] The first locking element 223 refers to a fastening element that provides mechanical locking force, which can be implemented by bolts or screws, and the axial clamping force is generated by thread engagement to eliminate gaps.

[0064] In this embodiment, the guide rod 21 passes through the first movable hole 222 and forms a sliding fit with the first plate 221, allowing the support component 22 to be height-adjusted along the guide rod 21. When the support component 22 moves to the target position, the first locking member 223 is inserted into the first movable hole 222 and screwed into the threaded hole 212 of the guide rod 21. By tightening the first locking member 223, the first plate 221 is pressed and fixed to the surface of the guide rod 21. The frictional force generated by the threaded connection offsets the external load, preventing the support component 22 from shifting during demolding. The fit accuracy between the first movable hole 222 and the guide rod 21 is controlled within the tolerance range, ensuring smooth adjustment while avoiding excessive clearance. The threaded depth of the first locking member 223 exceeds a critical value, forming a self-locking mechanism to ensure that the locked state does not loosen due to vibration.

[0065] Through the above technical solution, this application achieves precise positioning and reliable fixation of the support component 22 on the guide rod 21, ensuring that the mold maintains a stable position during demolding. The threaded locking structure effectively suppresses the axial movement and radial sway of the support component 22, avoiding uneven force on the sample caused by mold displacement.

[0066] This application further proposes that a first guide block 224 is provided in the first movable hole 222, the first guide block 224 is fitted into the guide groove 211, the first guide block 224 is provided with a first connecting hole 225 corresponding to the threaded hole 212, and the first locking member 223 is used to sequentially pass through the threaded hole 212 and the first connecting hole 225 to lock the support member 22 and the guide rod 21.

[0067] The first guide block 224 refers to the positioning component embedded in the guide groove 211, which can be implemented as a rectangular metal block, with its width forming a clearance fit with the inner cavity width of the guide groove 211. The guide groove 211 refers to the longitudinal groove formed on the side of the guide rod 21, which can be formed by wire cutting, and is used to limit the lateral movement range of the first guide block 224. The first connecting hole 225 refers to the through hole formed on the first guide block 224, which can be formed by drilling, with its axis coinciding with the axis of the threaded hole 212 to achieve through connection.

[0068] Specifically, when the support component 22 moves along the guide rod 21, the first guide block 224 is constrained and slides inside the guide groove 211, preventing the support component 22 from rotating around its axis or shifting laterally. When the support component 22 reaches a predetermined height, the locking member passes through the threaded hole 212 and the first connecting hole 225, forming a rigid connection between the support component 22 and the guide rod 21. During this process, the contact area between the guide block and the guide groove 211 increases, effectively dispersing the shear stress generated by the clamping force. The double-locking action of the locking member on the threaded hole 212 and the connecting hole eliminates the risk of loosening due to gaps present in traditional single-point locking methods.

[0069] Through the above technical solution, this application can eliminate the lateral displacement of the support component 22 during vertical movement, ensuring that the mold always moves along the predetermined trajectory during demolding, and avoiding uneven distribution of ejection force caused by mold position displacement. The cooperation structure between the locking component and the guide groove 211 further improves the shear resistance of the support component 22 in the locked state, preventing the fastening structure from loosening and failing during high-frequency demolding operations.

[0070] Please see Figure 6 This application further proposes that the pressing component 23 includes a second plate 231, a second movable hole 232 and a second locking member 233. The second movable hole 232 is provided on both sides of the second plate 231 and is provided corresponding to the guide rod 21. The second locking member 233 is inserted into the second movable hole 232 and is locked and connected to the threaded hole 212.

[0071] Specifically, the second plate 231 is fitted onto the outer surface of the guide rod 21 through the second movable holes 232 on both sides, allowing the pressing component 23 to be vertically adjusted along the guide rod 21. Once the mold's fixed position is determined, the second locking member 233 passes through the second movable holes 232 and screws into the threaded hole 212 on the side wall of the guide rod 21. The tightening force of the threaded pair fixes the relative position of the second plate 231 and the guide rod 21. During this process, the hole wall of the second movable hole 232 contacts the outer surface of the guide rod 21, forming a moving guide constraint. The threaded connection of the second locking member 233 eliminates the gap between them, thereby achieving rigid pressing of the pressing component 23 at the upper end of the mold.

[0072] Through the above technical solution, this application enables the pressing component 23 to maintain the flexibility of vertical movement during the mold fixing process, and can eliminate the gap between it and the guide rod 21 after locking, so as to avoid the mold from shifting due to the loosening of the pressing component 23 during the ejection process, thereby ensuring the stability of the sample demolding process.

[0073] This application further proposes that a second guide block 234 is provided in the second movable hole 232, the second guide block 234 is fitted into the guide groove 211, the second guide block 234 is provided with a second connecting hole 235 corresponding to the threaded hole 212, and the second locking member 233 is used to pass through the threaded hole 212 and the second connecting hole 235 in sequence to lock the support member 22 and the guide rod 21.

[0074] Specifically, after the second guide block 234 is embedded in the guide groove 211, the pressure member 23 is restricted from lateral displacement during vertical movement, ensuring that the demolding hole 24 of the pressure member 23 remains coaxial with the ejector member 13. When the pressure member 23 is adjusted to the target position, the second locking member 233 passes through the threaded hole 212 of the guide rod 21 and the second connecting hole 235 of the second guide block 234 in sequence, forming a rigid connection between the pressure member 23 and the guide rod 21 through threaded fastening. During this process, the mechanical engagement of the guide groove 211 and the second guide block 234 bears the lateral shear force, and the axial pressure generated by the locking member eliminates the longitudinal gap. The dual constraint mechanism prevents the pressure member 23 from displacing in the horizontal or vertical direction.

[0075] Through the above technical solution, this application solves the problem of mold offset caused by lack of positioning during the movement of the pressure component 23, ensuring that the mold and the ejector component 13 always maintain precise alignment. When the ejector component 13 pushes the sample to demold, the uniformity of force on the mold is guaranteed, avoiding cracks or deformation of the sample due to local stress concentration, and reducing the scrap rate. At the same time, the cooperative structure of the guide block and the guide groove 211 makes the movement trajectory of the pressure component 23 stable and controllable, improving the repeatability and positioning accuracy of the demolding operation.

[0076] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0077] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing 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, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0078] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0079] In this application, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" a first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0080] Although the description of this application has been made in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A demolding machine, characterized in that, It includes an ejector mechanism (1) for ejecting the sample so that the sample is separated from the mold; the ejector mechanism (1) includes a fixing part (11), a driving part (12) and an ejector part (13), the fixing end of the driving part (12) is connected to the fixing part (11), and the driving end of the driving part (12) is connected to the ejector part (13). The drive component (12) includes a plurality of first cylinders (121) and a plurality of second cylinders (122). The plurality of first cylinders (121) are arranged in a circular array, and the plurality of second cylinders (122) are arranged in a circular array. The second cylinders (122) are located between the central axis of the fixed part (11) and the first cylinders (121). The top material component (13) includes a first top material block (131) and a second top material block (132). The first top material block (131) surrounds the edge of the second top material block (132), and the first top material block (131) is driven connected to the first cylinder (121), and the second top material block (132) is driven connected to the second cylinder (122). When demolding small-sized samples, the second cylinder (122) is used to drive the second ejector block (132) to lift the sample for demolding; when demolding large-sized samples, the first cylinder (121) and the second cylinder (122) are driven synchronously to simultaneously drive the first ejector block (131) and the second ejector block (132) to lift the sample for demolding.

2. The demolding machine according to claim 1, characterized in that, The first cylinder (121) and the second cylinder (122) are misaligned.

3. The demolding machine according to claim 1, characterized in that, The upper end of the fixing part (11) is provided with a plurality of annular support blocks (111), the annular support blocks (111) are used to place the top material component (13); a placement groove (112) is formed between adjacent annular support blocks (111), the placement groove (112) is used to place the driving component (12).

4. The demolding machine according to claim 1, characterized in that, The demolding machine also includes a material holding mechanism (2), which includes symmetrically arranged guide rods (21), support components (22), and pressing components (23). The two sides of the support component (22) are movably connected to the guide rod (21). The pressing component (23) is arranged parallel to the supporting component (22), and its two sides are connected through the guide rod (21). Both the support component (22) and the pressing component (23) are provided with demolding holes (24), which are opposite to the ejector component (13); the support component (22) is used to support the mold, and the pressing component (23) is used to fix the upper end of the mold.

5. The demolding machine according to claim 4, characterized in that, The guide rod (21) has a guide groove (211) on one side, and threaded holes (212) are provided on both sides of the guide groove (211).

6. The demolding machine according to claim 5, characterized in that, The support component (22) includes a first plate (221), a first movable hole (222) and a first locking member (223). The first movable hole (222) is located on both sides of the first plate (221) and is provided corresponding to the guide rod (21). The first locking member (223) is inserted into the first movable hole (222) and is locked to the threaded hole (212).

7. The demolding machine according to claim 6, characterized in that, The first movable hole (222) is provided with a first guide block (224), the first guide block (224) is fitted into the guide groove (211), the first guide block (224) is provided with a first connecting hole (225) corresponding to the threaded hole (212), and the first locking member (223) is used to pass through the threaded hole (212) and the first connecting hole (225) in sequence to lock the support member (22) and the guide rod (21).

8. The demolding machine according to claim 5, characterized in that, The pressing component (23) includes a second plate (231), a second movable hole (232) and a second locking member (233). The second movable hole (232) is located on both sides of the second plate (231) and is provided corresponding to the guide rod (21). The second locking member (233) is inserted into the second movable hole (232) and is locked to the threaded hole (212).

9. The demolding machine according to claim 8, characterized in that, The second movable hole (232) is provided with a second guide block (234), which is fitted into the guide groove (211). The second guide block (234) is provided with a second connecting hole (235) corresponding to the threaded hole (212). The second locking member (233) is used to pass through the threaded hole (212) and the second connecting hole (235) in sequence to lock the support member (22) and the guide rod (21).

10. The demolding machine according to claim 4, characterized in that, The edge of the demolding hole (24) is provided with a limiting groove (241), which is used to limit the mold.

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