Test member production mold

Abstract

The utility model discloses a test component production mould, this test component production mould includes: mould body, the mould body is along first direction and is set with the accommodation groove for pouring concrete, and at least one cushion block, cushion block is along first direction and is inserted in the accommodation groove, and at least one side wall and accommodation groove inner wall are pasted, aim at solving the technical problem of the demoulding process of prior art is not smooth.

Description

Technical Field

[0001] This utility model relates to the field of reinforced concrete component mold technology, specifically to a mold for making test components. Background Technology

[0002] In civil engineering experiments, reinforced concrete test components such as beams and columns are common test objects. These specimens usually require specialized molds for casting and molding. However, in traditional mold design, specimen demolding has always been a difficult problem to solve.

[0003] Currently, wooden and steel molds are commonly used in the design of molds for reinforced concrete test members. The mold is hollow inside with an opening on one side, into which concrete is poured. After the concrete hardens, it is demolded. However, when there is strong adhesion between the specimen and the mold, even with the use of a release agent, demolding may still be difficult, thus affecting the successful production of the specimen. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a mold for making test components, thereby solving the technical problem of unsmooth demolding process in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This utility model provides a mold for making test components, including: a mold body, the mold body having a receiving groove for pouring concrete along a first direction; and at least one pad, the pad being inserted into the receiving groove along the first direction, and at least one side wall being in contact with the inner wall of the receiving groove.

[0006] In some embodiments, the pad has an inverted trapezoidal structure, and its cross-sectional area gradually decreases along a first direction.

[0007] In some embodiments, the ratio of the length of the long base L1 to the length of the short base L2 of the inverted trapezoidal structure ranges from 1.5:1 to 2.5:1.

[0008] In some embodiments, the pad extends along a first direction from the opening of the receiving groove to the bottom surface of the receiving groove.

[0009] In some embodiments, the number of pads is a pair, and they are disposed opposite each other at both ends of the receiving groove.

[0010] In some embodiments, the pad has a brim extending perpendicular to a first direction, the brim being used to overlap the edge of the mold body.

[0011] In some embodiments, a friction-resistant anti-slip layer is provided between the brim and the edge of the mold body.

[0012] In some embodiments, the pad has a protruding handle structure along a first direction.

[0013] In some embodiments, the mold body is formed by multiple detachable plates, and adjacent plates are fixed by connectors.

[0014] In some embodiments, at least one plate is provided with a plurality of equally spaced adjustment holes.

[0015] Compared with existing technologies, the test component manufacturing mold provided by this utility model, by setting a pad on the side of the receiving groove, can be moved out of the receiving groove to form a demolding gap, ensuring that the test component can be demolded smoothly and reducing the problems of specimen damage or low production efficiency caused by poor demolding. In addition, the number and arrangement of the pads can also be adjusted according to different test component sizes and shapes, which has greater flexibility and adaptability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a mold for making experimental components provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of another experimental component manufacturing mold provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the structure of a pad provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of another experimental component manufacturing mold provided in this embodiment of the utility model; Figure 5 This is a schematic diagram of the structure of a mold for making experimental components provided in another embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of a mold body provided in an embodiment of this utility model.

[0017] Explanation of reference numerals in the attached figures: 10. Mold body; 11. Receiving groove; 12. Plate; 121. Adjustment hole; 20. Pad block; 21. Brim; 22. Handle structure; 30. Friction-resistant anti-slip layer. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] In order to solve the technical problem of the unsmooth demolding process in the prior art, this utility model provides a mold for making test components, which can achieve the effect of simple operation and easy demolding of test components.

[0020] It should be noted that the test component manufacturing mold device described in this utility model is used for, but not limited to, test component manufacturing. For ease of explanation, this utility model only uses the application of the test component manufacturing mold to test component manufacturing as an example. The principle of the test component manufacturing mold applied to other types of equipment is essentially the same as that applied to test component manufacturing, and will not be elaborated here.

[0021] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a mold for manufacturing experimental components provided in an embodiment of this utility model. Figure 1 The Z direction shown is the first direction. The mold for making the test component includes a mold body 10 and at least one pad 20. Specifically, the mold body 10 is the main structural part used to contain concrete and ensure its molding, and has a receiving groove 11 for pouring concrete opened along the first direction (usually the height direction). The size and shape of the receiving groove 11 are determined according to the size of the required test component, and can hold sufficient steel reinforcement and concrete material to ensure the quality and stability of the final test component.

[0022] At least one spacer 20 is disposed inside the mold body 10 in the side region of the receiving groove 11. The spacer 20 fits tightly against a portion of the inner wall of the receiving groove 11, wherein at least one surface of the spacer 20 is in contact with the inner wall of the receiving groove 11. The spacer 20 provides an effective demolding mechanism during the concrete molding process. After the concrete has been molded and reached a certain strength, the spacer 20 can be moved out of the receiving groove 11 in a first direction (i.e., the height direction of the receiving groove 11). When the spacer 20 is removed, a demolding gap is formed between the concrete and the inner wall of the receiving groove 11. The existence of this gap allows the test member to be smoothly removed from the mold, reducing demolding difficulties caused by the tight contact between the concrete and the inner wall of the mold.

[0023] In this embodiment, the structure and configuration of the spacer block 20 ensure the integrity of the test component during demolding, avoiding the problems of specimen damage or low production efficiency caused by difficult demolding in traditional molds. The mold provides a relatively simple demolding process after pouring and molding concrete, significantly reducing operational difficulty. Furthermore, the spacer block 20 can be designed as a detachable structure as needed, facilitating mold cleaning and maintenance. The number and arrangement of the spacer blocks 20 can be adjusted according to different test component sizes and shapes to meet the fabrication requirements of various test components.

[0024] In one embodiment, the pad 20 is designed as an inverted trapezoidal structure, with its cross-sectional area gradually decreasing along the first direction. That is, the bottom edge of the pad 20 is longer near the opening of the mold body 10, while it gradually shortens away from the opening, forming an inverted trapezoidal geometry, so that the shape of the pad 20 presents a sloping structure that gradually narrows from top to bottom.

[0025] In this embodiment, the inverted trapezoidal structure brings many advantages. First, the side of the spacer block 20 that contacts the concrete is an inclined surface. The inclined surface can effectively reduce the friction between the spacer block 20 and the inner wall of the mold during the concrete molding process, so that the spacer block 20 can be pulled out more smoothly after the concrete has solidified. This avoids the excessive friction caused by planar contact in traditional molds, thereby reducing the difficulty of demolding.

[0026] Secondly, due to the special shape of the inverted trapezoidal structure, the spacer 20 can form a gradually increasing space in the first direction when it is pulled out, so that a demolding gap is gradually formed between the concrete and the inner wall of the mold. The gradual formation of the gap helps to improve the demolding effect, making it easier for the specimen to be released from the mold, thereby improving the production efficiency of the test components.

[0027] Furthermore, when the contact area between the pad 20 and the mold is large, the inverted trapezoidal pad 20, compared with the traditional straight or rectangular pad 20, can effectively prevent the pad 20 from being damaged by the mechanical action during the pull-out process, thus ensuring the reusability of the mold and the quality of the test piece.

[0028] In one embodiment, the ratio of the long base L1 to the short base L2 is specifically limited to a range of 1.5:1 to 2.5:1 for the dimensions of the inverted trapezoidal structure. This ratio limitation is based not only on the optimization requirements of the demolding process but also on the control of the friction between the pad 20 and the concrete and the inner wall of the mold.

[0029] If the ratio of the long base L1 to the short base L2 of the inverted trapezoidal structure is less than 1.5:1, the inclination angle of the contact surface between the inverted trapezoidal block 20 and the concrete becomes smaller, approaching vertical. At this point, the contact surface between the block 20 and the concrete is almost perpendicular, and the structural design causes the block 20 to continuously generate significant friction during extraction. During concrete curing, the friction between the block 20 and the inner wall of the mold increases, making the extraction of the block 20 more difficult. Excessive friction not only increases the force required for demolding but may also cause the block 20 to get stuck during extraction, or even damage the mold surface, affecting subsequent use.

[0030] When the ratio of the long base L1 to the short base L2 is greater than 2.5:1, the inverted trapezoidal pad 20 has an excessively large tilt angle, resulting in an excessively large gap between the pad 20 and the concrete contact surface. In actual operation, an excessively large tilt angle of the pad 20 affects the stability of the overall structure, making it prone to tilting or damage during extraction. Furthermore, an excessively large gap restricts the dimensional control of the concrete test specimen. An excessively large demolding gap may cause the specimen to exceed the expected standard dimensions, affecting the accuracy of the experimental results.

[0031] In this embodiment, the ratio of the long base L1 to the short base L2 of the inverted trapezoidal structure is set between 1.5:1 and 2.5:1, which effectively balances the smoothness of demolding and the structural stability of the test component. This reasonable ratio range ensures sufficient contact area between the spacer block 20 and the concrete to reduce friction and avoid demolding difficulties, while also preventing excessive tilting of the spacer block 20 during removal, thus maintaining the dimensional accuracy and shape stability of the test component. This ratio range not only optimizes the demolding process but also effectively improves production efficiency and ensures that the specimen quality meets requirements.

[0032] In one embodiment, the spacer 20 extends along a first direction from the opening of the receiving groove 11 to the bottom surface of the receiving groove 11. This means the spacer 20 completely fills the side area of ​​the receiving groove 11 and effectively isolates the concrete on one side from contact with the mold body 10, thereby significantly reducing the adhesion between the concrete and the mold. Reducing adhesion is crucial for the demolding process because it lowers the adhesion between the concrete and the mold, reducing the force and friction required for demolding.

[0033] In this embodiment, the pad 20 effectively isolates the direct contact between the concrete on one side and the inner wall of the mold, avoiding the risk of damage to the test component due to excessive friction caused by local contact, thereby ensuring the standardization and consistency of each test component.

[0034] In one embodiment, the number of pads 20 is set to a pair, and the two pads 20 are arranged in the two end areas of the receiving groove 11 of the mold body 10. This not only provides more uniform support and isolation, but also effectively ensures the stability and reliability of the demolding process.

[0035] In this embodiment, by setting the spacers 20 as a pair, located at opposite ends of the receiving groove 11, it is ensured that the concrete is in uniform contact with the spacers 20 throughout the entire pouring process, forming a symmetrical support structure. This makes the pouring and molding of the concrete more balanced, avoiding asymmetrical stress caused by a single-sided spacer 20, and ensuring the dimensional accuracy and shape stability of the test component. In this way, not only is the contact area between the concrete and the mold body 10 reduced, but it also helps to release the adhesion force evenly during demolding, avoiding demolding difficulties caused by excessive or uneven local friction.

[0036] Furthermore, the design of arranging the spacers 20 in pairs increases their stability. During demolding, the two spacers 20 work together at both ends of the receiving groove 11 to ensure the concrete member remains stable throughout the entire extraction process, avoiding the risk of displacement or tilting. This arrangement effectively improves the durability and reliability of the mold, allowing for repeated use and reducing the likelihood of damage to the test member due to improper operation.

[0037] In one embodiment, please refer to Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of another experimental component manufacturing mold provided in this embodiment of the utility model. Figure 3 This is a schematic diagram of the structure of a pad 20 provided in an embodiment of the present invention. The pad 20 is further optimized by providing a brim 21 extending perpendicular to a first direction. The brim 21 extends perpendicular to the first direction, allowing the pad 20 to form a tight fit with the edge of the mold body 10 when installed in the receiving groove 11. The brim 21 overlaps the edge of the mold body 10, enhancing the tightness of the fit between the pad 20 and the mold and improving its stability.

[0038] In this embodiment, the brim 21 serves a positioning function. When the pad 20 is placed inside the mold, the brim 21 can accurately overlap the edge of the mold body 10, preventing the pad 20 from shifting or tilting during concrete pouring. Since the concrete is subjected to a certain pressure during pouring, the pad 20 must remain stable and not shift. The overlap of the brim 21 ensures that the pad 20 does not easily move during the entire concrete molding process, thereby maintaining the structural stability of the mold and avoiding the problem of affecting the molding accuracy of the test component due to inaccurate positioning of the pad 20.

[0039] Meanwhile, the brim 21 also facilitates additional ease of operation during demolding. After the concrete has set, when the spacer block 20 needs to be removed, the brim 21 structure provides a significant gripping point, allowing operators to more easily grasp the brim 21 portion of the spacer block 20, reducing inconvenience or the risk of damage during removal. The extended portion of the brim 21 allows for even force application to the spacer block 20, preventing damage or deformation due to uneven force application.

[0040] In addition, the brim 21 also has a certain anti-slip function. During the concrete curing process, the overlap between the brim 21 and the mold body 10 can effectively prevent the pad 20 from sliding or loosening between itself and the mold, ensuring that the pad 20 maintains close contact with the mold body 10 throughout the molding process. This not only improves the overall stability of the mold, but also ensures the quality and molding accuracy of the test component.

[0041] Furthermore, in one embodiment, please refer to Figure 4 , Figure 4 This is a schematic diagram of the structure of another test component manufacturing mold provided in this embodiment of the utility model. A friction anti-slip layer 30 is provided between the brim 21 and the edge of the mold body 10. The friction anti-slip layer 30 can be made of rubber, silicone or other materials with a high coefficient of friction and a certain degree of elasticity. Its main function is to form an anti-slip medium at the contact position between the pad 20 and the mold body 10, thereby further enhancing the friction between the two and preventing the pad 20 from accidentally sliding or loosening during use.

[0042] During concrete pouring, the grout generates impact and lateral pressure. If the rigid contact between the cap 21 and the mold edge is relied upon solely, slight displacement of the pad 20 may occur, leading to deviations in the internal dimensions of the mold and affecting the molding accuracy of the test component. The friction anti-slip layer 30 significantly improves the contact friction between the cap 21 and the mold edge, making the pad 20 more firmly fixed in the designed position, thereby ensuring the stability of the mold structure during concrete pouring and vibration.

[0043] Furthermore, the friction-resistant anti-slip layer 30, due to its flexibility, also provides a cushioning effect between the pad 20 and the mold. Even if local stress is generated during assembly or disassembly, the friction-resistant anti-slip layer 30 can disperse the force, preventing damage to the cap 21 or the mold edge due to excessive local stress. This cushioning protection not only extends the service life of the mold but also improves its reusability.

[0044] In one embodiment, the pad 20 is provided with a protruding handle structure 22 along a first direction to facilitate the operator in pulling out the pad 20 after the concrete has been formed. The handle structure 22 is usually arranged at one end of the pad 20 near the opening of the receiving groove 11, and protrudes outward as a whole, providing the operator with a reliable gripping or force application position, thereby significantly improving the convenience and safety of pulling out the pad 20.

[0045] In this embodiment, the handle structure 22 can be designed in different forms according to actual needs, such as strip-shaped protrusions, ring handles, arc-shaped grips, or block-shaped protrusions with anti-slip textures. Regardless of the form, its core function is to enable the operator to directly grasp the handle with their hands or tools after the concrete has hardened, and smoothly pull out the pad 20 in the first direction. Compared with the traditional method of directly pulling out the pad 20 by relying on friction, the handle structure 22 can transmit external force more evenly, avoiding deformation or damage to the pad 20 due to uneven force, and even affecting the normal use of the mold.

[0046] Furthermore, the handle structure 22 significantly improves operational safety. Without the handle, the operator might need to use tools to pry the pad 20, which could easily damage the mold body 10 and the pad 20, and could also pose safety hazards during operation. With the protruding handle, the operator can directly grasp and pull it out with their hands or conventional auxiliary tools (such as hooks or pliers), greatly reducing operational risks.

[0047] In one embodiment, please refer to Figure 5 , Figure 5 This is a schematic diagram of another experimental component manufacturing mold provided in this embodiment of the present invention. The mold body 10 adopts a modular design, consisting of multiple detachable plates 12, which are fixed together by connectors. Unlike molds that are integrally formed, this embodiment has higher flexibility and maintainability.

[0048] The mold body 10 typically comprises two opposing long side plates, two opposing short side plates, and a base plate. These plates 12 are interconnected and fixed by pre-set connectors (such as bolts, pins, clips, or special locking structures) to form a closed receiving groove 11 for pouring concrete. The number and shape of the plates 12 can be adjusted according to the size of the test specimen to meet the manufacturing requirements of different specimen specifications.

[0049] In this embodiment, when it is necessary to manufacture specimens of different sizes, quick adjustments can be made by replacing some of the plates 12, without having to remake an entire set of molds, thereby significantly saving costs and improving utilization. For example, the length or width of the receiving groove 11 can be adjusted simply by replacing the long side plate or the short side plate, thereby meeting the requirements of different experiments for component dimensions.

[0050] Furthermore, after the specimen is fabricated, if the specimen is large in size or has a complex shape, demolding using only the spacer block 20 may still be difficult. In this case, by disassembling part of the plate 12, the constraint between the mold and the specimen can be quickly released, greatly reducing the difficulty of demolding and the risk of specimen damage.

[0051] Furthermore, the structure of the detachable plate component 12 facilitates the cleaning and maintenance of the mold. In traditional integral molds, concrete slurry remains inside the mold, making cleaning difficult. However, the detachable plate component 12 can be removed and cleaned individually, which not only makes operation convenient but also ensures the cleanliness and precision of the mold after long-term use.

[0052] As one implementation method, please refer to one embodiment. Figure 6 , Figure 6 This is a schematic diagram of the structure of a mold body 10 provided in an embodiment of the present utility model. At least one plate 12 is provided with a plurality of equally spaced adjustment holes 121. The adjustment holes 121 are usually arranged near the edge of the plate 12 and are evenly distributed in a certain direction. They can be used in conjunction with connecting parts or positioning parts to realize flexible adjustment and positioning fixation of mold size.

[0053] The adjustment hole 121 can be designed as a round hole, an oblong hole, or other geometry suitable for the insertion of connectors. By inserting bolts, pins, or locating pins into the adjustment holes 121 at different positions, the relative position between adjacent plates 12 can be adjusted and fixed. For example, when it is necessary to change the length or width of the receiving groove 11, the operator only needs to loosen part of the connector, move the plate 12 to the corresponding adjustment hole 121 position, and then re-fix it to complete the adjustment.

[0054] In this embodiment, the equidistant arrangement of the adjustment holes 121 provides a standardized dimensional adjustment benchmark, ensuring that the change in the internal space of the mold after each adjustment is precise and controllable, thereby guaranteeing that the molding dimensions of the test component meet the experimental requirements. Simultaneously, the adjustment holes 121 also serve as auxiliary positioning and assembly functions. During mold installation, the operator can first insert temporary positioning pins through the adjustment holes 121 to initially fix the plate 12, and then use the formal connectors for reinforcement. This not only simplifies the operation process but also improves the accuracy and efficiency of assembly.

[0055] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A mold for manufacturing experimental components, characterized in that, include: The mold body has a receiving groove for pouring concrete along a first direction; and At least one pad is inserted into the receiving groove along the first direction, and at least one sidewall is in contact with the inner wall of the receiving groove.

2. The mold for manufacturing the test component according to claim 1, characterized in that, The pad has an inverted trapezoidal structure, and its cross-sectional area gradually decreases along the first direction.

3. The mold for manufacturing the test component according to claim 2, characterized in that, The ratio of the length of the long base L1 to the length of the short base L2 of the inverted trapezoidal structure ranges from 1.5:1 to 2.5:

1.

4. The mold for manufacturing the test component according to claim 1, characterized in that, The pad extends along the first direction from the opening of the receiving groove to the bottom surface of the receiving groove.

5. The mold for manufacturing the test component according to claim 1, characterized in that, The number of pads is one pair, and they are arranged opposite each other at both ends of the receiving groove.

6. The mold for manufacturing the test component according to claim 1, characterized in that, The pad has a brim extending perpendicular to the first direction, the brim being used to overlap the edge of the mold body.

7. The mold for manufacturing the test component according to claim 6, characterized in that, A friction-resistant anti-slip layer is provided between the brim and the edge of the mold body.

8. The mold for manufacturing the test component according to claim 1, characterized in that, The pad has a protruding handle structure along the first direction.

9. The mold for manufacturing the test component according to any one of claims 1 to 8, characterized in that, The mold body is composed of multiple detachable plates, and adjacent plates are fixed together by connectors.

10. The mold for manufacturing the test component according to claim 9, characterized in that, At least one plate has multiple adjustment holes arranged at equal intervals.

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