A structural adhesive compressive strength mold

Abstract

This utility model discloses a structural adhesive compressive strength mold, comprising two overlapping templates. Each template has a first sidewall and a second sidewall opposite to the first sidewall. Several cylindrical casting grooves are provided between the two templates, with one end closed and the other end open to form an opening. A funnel-shaped opening extends horizontally through the first sidewall, with the diameter of the opening gradually decreasing from the first sidewall towards the opening. The two templates are tightly connected by fastening components. Using this structural adhesive compressive strength mold, a large number of high-quality specimens can be obtained in a single casting, thus solving the problem of insufficient dimensional accuracy of specimens obtained by traditional molds and improving the accuracy of structural component specimen testing results.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a structural adhesive compressive strength mold. Background Technology

[0002] Structural adhesives are high-strength, durable bonding agents widely used in construction and other fields. Before using structural adhesives, it is necessary to test whether their various properties meet the specifications, such as tensile strength, compressive strength, and shear strength.

[0003] According to relevant specifications, in compressive strength tests, the standard dimensions of Type I specimens are 10mm × 10mm × 25mm, while Type II specimens are cylinders with a diameter of Φ10mm and a height of 25mm. In practical engineering applications and testing practices, Type II specimens are more widely used.

[0004] Traditional structural adhesive molds are typically made of steel or silicone rubber and consist of two interlocking templates that combine to form multiple cylindrical casting grooves. After the structural adhesive is filled into these grooves, the molds are demolded and processed into standard parts that meet specifications once the required curing time has elapsed. The casting grooves in traditional molds are typically Φ10*25mm, which matches the dimensions of the specimen. However, structural adhesives undergo volume shrinkage during curing. If the shrinkage rate is significant, and the initial filling amount is just right or venting is insufficient, the surface of the structural adhesive may become concave, or even develop micro-defects or voids within. This can result in insufficient specimen height or localized defects, affecting test results. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a structural adhesive compressive strength mold.

[0006] A structural adhesive compressive strength mold includes two overlapping templates. Each template has a first sidewall and a second sidewall opposite to the first sidewall. Several cylindrical casting grooves are provided between the two templates. One end of each casting groove is closed, and the other end is open to form an opening. A funnel-shaped opening is provided at the opening, extending horizontally to the first sidewall. The diameter of the opening gradually decreases from the first sidewall towards the opening. The two templates are tightly connected by fastening components.

[0007] A further technical solution is to use a casting trough with a diameter of 10mm and a length of 120-220mm.

[0008] A further technical solution is: the two templates are the same size, and the casting trough includes a trough with a semi-circular cross section set on the mating surface of the two templates respectively.

[0009] A further technical solution is: the fastening assembly includes a first fastener disposed on both sides of the casting trough and a second fastener disposed in the extension direction of the closed end of the casting trough, wherein the first fastener and the second fastener are respectively connected through the two templates to one end near the first sidewall and one end near the second sidewall.

[0010] A further technical solution is: both the first fastener and the second fastener include screw holes provided on the corresponding two templates, bolts passing through the screw holes on the two templates, and nuts threaded to the ends of the bolts.

[0011] A further technical solution is that the nut is a wing nut.

[0012] A further technical solution is as follows: the template is made of steel plate with a length of 300mm, a width of 125mm, and a height of 25mm. Two symmetrically arranged pouring grooves are set between the two templates. The pouring grooves are 220mm long, the distance between the two pouring grooves is set to 40mm, and the maximum diameter of the opening is 35mm, the minimum diameter is 10mm, and the height is 5mm.

[0013] A further technical solution is: the distance between the closed end of the casting groove and the second sidewall is set to 70mm, the distance between the screw hole of the second fastener and the second sidewall is set to 40mm, and the distance between the screw hole of the first fastener and the first sidewall is set to 25mm.

[0014] The beneficial effects of this utility model are:

[0015] The structural adhesive compressive strength mold of this application allows for the pouring of reagents from an open opening into a casting tank. The reagent level is higher than the opening of the casting tank but lower than the top surface of the opening. This not only facilitates the pouring of the adhesive but also ensures that the adhesive completely fills the casting tank. Two structural adhesive particles with a diameter of 10 mm and a length of approximately 220 mm can be obtained at once. According to the required test dimensions, the parts of the adhesive without air bubbles or defects can be selected for cutting and processing into multiple Φ10*25 mm standard specimens. This allows for a large number of high-quality specimens to be obtained in one pour, thereby solving the problem of insufficient dimensional accuracy of specimens obtained by traditional molds and improving the accuracy of structural component specimen testing results.

[0016] This application provides a first fastener and a second fastener on both sides of the casting trough and in the direction of the casting trough extension. The first and second fasteners work together to make the connection between the two templates more compact, tighten the two templates from multiple directions, reduce the probability of air holes in the specimen, and assist in the positioning of the two templates to ensure accurate splicing of the casting trough. Attached Figure Description

[0017] Figure 1 This is a top view of the template;

[0018] Figure 2 This is the front view of the structural adhesive compressive strength mold;

[0019] Figure 3 This is a side view of the structural adhesive compressive strength mold;

[0020] Figure 4 This is the isometric view of the template;

[0021] Figure 5 This is an axonometric view of the structural adhesive compressive strength mold.

[0022] In the picture:

[0023] 1. Template, 2. Pouring trough, 3. Opening, 4. Opening, 5. First fastener, 6. Second fastener, 7. Bolt, 8. Nut, 9. Threaded hole, 10. First sidewall, 11. Second sidewall. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 the utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] A structural adhesive compressive strength mold, such as Figure 1-5As shown, the device includes two overlapping templates 1. Each template 1 has a first sidewall 10 and a second sidewall 11 opposite to the first sidewall. Several cylindrical casting grooves 2 are provided between the two templates 1. One end of the casting groove 2 is closed, and the other end is open to form an opening 3. A funnel-shaped opening 4 is provided at the opening 3, which extends horizontally to the first sidewall 10. The diameter of the opening 4 gradually decreases from the first sidewall 10 toward the opening 3. The two templates 1 are tightly connected by fastening components.

[0028] The diameter of the casting trough 2 is 10mm and the length is 120-220mm. The number of casting troughs 2 can be set to 1-3, and preferably there are 2 casting troughs 2.

[0029] The two templates 1 are the same size. The casting trough 2 includes a trough with a semi-circular cross section, which is respectively set on the mating surface of the two templates 1. The diameter of the semi-circle is 10mm.

[0030] The fastening assembly includes first fasteners 5 disposed on both sides of the casting groove 2, and second fasteners 6 disposed in the extension direction of the closed end of the casting groove 2. The first fasteners 5 and the second fasteners 6 are respectively connected through the two templates 1 to one end near the first sidewall 10 and one end near the second sidewall 11. When there are two or more casting grooves 2, only the same first fastener 5 needs to be used between two adjacent casting grooves 2.

[0031] Both the first fastener 5 and the second fastener 6 include screw holes 9 corresponding to those on the two templates 1, bolts 7 passing through the screw holes 9 on the two templates 1, and nuts 8 threaded to the ends of the bolts 7. The two templates 1 are tightly connected together by the bolts 7 passing vertically through the corresponding screw holes 9 on the two templates 1. For ease of installation and disassembly, wing nuts 8 are preferred.

[0032] In one specific embodiment, the template 1 is made of steel plate with a length of 300mm, a width of 125mm, and a height of 25mm. Two symmetrically arranged pouring grooves 2 are provided between the two templates 1. The diameter of each pouring groove 2 is 10mm, its length is 220mm, and the distance between the two pouring grooves 2 is 40mm. The maximum diameter of the opening 4 is 35mm, the minimum diameter is 10mm, and its height is 5mm.

[0033] The distance between the first fastener 5 and the first sidewall 10 is set to 25mm. The distance between the closed end of the casting groove 2 and the second sidewall 11 is set to 70mm, and the distance between the second fastener 6 and the second sidewall 11 is set to 40mm. The diameter of the screw hole 9 is set to 10mm.

[0034] In use, the structural adhesive compressive strength mold of this utility model involves stacking two templates 1 tightly together, so that the corresponding grooves between the two templates 1 are joined to form a cylindrical casting groove 2. The bolts 7 of the first fastener 5 and the second fastener 6 are passed through the screw holes 9 on the two templates 1 respectively, and then the nuts 8 are tightened. Structural adhesive is poured into the casting groove 2 through the opening 4 of the template 1, with the poured reagent level submerging the opening 3 but not exceeding the opening 4. After reaching the required curing period, the nuts 8 and bolts 7 are removed, the template 1 is opened, and demolding is performed to obtain two structural adhesive bodies with a diameter of 10mm and a length of 220mm. The obtained adhesive bodies are then cut at full, defect-free locations to obtain multiple standard specimens with a size of Φ10*25mm.

[0035] The structural adhesive compressive strength mold of this utility model can be used in factory inspection of structural adhesives, public welfare compressive strength testing, elastic modulus testing and other tests. It can also be widely used in building engineering structural reinforcement, automobile manufacturing and other scenarios that require structural adhesive testing.

[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A structural adhesive compressive strength mold, characterized in that, The device includes two overlapping templates, each template having a first sidewall and a second sidewall opposite to the first sidewall. Several cylindrical casting grooves are provided between the two templates. One end of each casting groove is closed, and the other end is open to form an opening. A funnel-shaped opening is provided at the opening, extending horizontally to the first sidewall. The diameter of the opening gradually decreases from the first sidewall towards the opening. The two templates are tightly connected by fastening components.

2. The structural adhesive compressive strength mold according to claim 1, characterized in that, The diameter of the casting trough is 10mm and the length is 120-220mm.

3. The structural adhesive compressive strength mold according to claim 1, characterized in that, The two templates are the same size, and the casting trough includes a trough with a semi-circular cross section that is set on the mating surface of the two templates respectively.

4. The structural adhesive compressive strength mold according to claim 1, characterized in that, The fastening assembly includes a first fastener disposed on both sides of the casting trough and a second fastener disposed in the extension direction of the closed end of the casting trough. The first fastener and the second fastener are respectively connected through the two templates to one end near the first sidewall and one end near the second sidewall.

5. A structural adhesive compressive strength mold according to claim 4, characterized in that, Both the first and second fasteners include screw holes provided on the corresponding two templates, bolts passing through the screw holes on the two templates, and nuts threaded to the ends of the bolts.

6. The structural adhesive compressive strength mold according to claim 5, characterized in that, The nut is a wing nut.

7. A structural adhesive compressive strength mold according to claim 4, characterized in that, The template is made of steel plate with a length of 300mm, a width of 125mm, and a height of 25mm. Two symmetrically arranged pouring grooves are set between the two templates. The pouring grooves are 220mm long, the distance between the two pouring grooves is 40mm, the maximum diameter of the opening is 35mm, the minimum diameter is 10mm, and the height is 5mm.

8. A structural adhesive compressive strength mold according to claim 7, characterized in that, The distance between the closed end of the casting trough and the second sidewall is set to 70mm, the distance between the second fastener and the second sidewall is set to 40mm, and the distance between the first fastener and the first sidewall is set to 25mm.

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