Shrinkage measuring device for BMC (bulk molding compound) material

Abstract

The utility model relates to the technical field of BMC (bulk molding compound) material processing, and discloses a shrinkage rate measuring device for BMC materials, which comprises a bottom plate, a support table is fixedly mounted at the center of the upper end surface of the bottom plate, and a plurality of groups of measuring components are arranged on the upper end surface of the bottom plate and positioned on the peripheral side of the support table; the measuring assembly comprises a fixing table, an electronic measuring meter is fixedly installed on the fixing table, a clamping structure is movably installed at the tail end of the electronic measuring meter, an adjusting structure is arranged on the bottom face of the fixing table and comprises an adjusting rail in sliding connection with the bottom plate, and an adjusting groove is formed in the upper surface of the adjusting rail. According to the utility model, the plurality of groups of measuring assemblies are arranged to measure the object to be measured in different directions at the same time, so that a plurality of groups of data can be obtained in a single measurement process, and the accuracy of calculating the shrinkage rate of the object to be measured can be improved through comparison and calculation of the plurality of groups of data.

Description

Technical Field

[0001] The utility model relates to the technical field of BMC material processing, in particular to a shrinkage rate measuring device for BMC materials. Background Art

[0002] The shrinkage rate of BMC materials refers to the percentage of the difference between the size of a BMC material part at the molding temperature and the size after being taken out of the mold and cooled to room temperature, which reflects the degree of size reduction of a fiber-reinforced molded plastic part after being taken out of the mold and cooled.

[0003] The common existing method for measuring the shrinkage rate of fiber-reinforced molded plastics is to measure with a vernier caliper. In the prior art, the patent number CN216205769U provides a device for measuring the shrinkage rate of BMC and SMC materials, which includes a base and a measuring object support table placed on the base. A first measuring object limit groove, a second measuring object limit groove, a first micrometer limit groove and a second micrometer limit groove are arranged around the measuring object support table. The first measuring object limit groove is opposite to the first micrometer limit groove, and the second measuring object limit groove is opposite to the second micrometer limit groove. The connecting line direction between the first measuring object limit groove and the first micrometer limit groove is perpendicular to the connecting line direction between the second measuring object limit groove and the second micrometer limit groove. A first micrometer is arranged on the first micrometer limit groove, and the first micrometer is supported by a first micrometer support table placed below it. A second micrometer is arranged on the second micrometer limit groove, and the second micrometer is supported by a second micrometer support table placed below it. The micrometer measuring heads of the first micrometer and the second micrometer respectively face the measuring object support table in the middle;

[0004] The above technical solution can measure the object to be measured in two directions when in use, and can adjust the device within a certain range to adapt to the object to be measured. However, on the one hand, the measured data is still small when using this technical solution, and it cannot adapt to the measurement of objects to be measured with irregular shapes. On the other hand, the adaptation adjustment process for objects to be measured with different sizes is relatively troublesome. Summary of the Utility Model

[0005] The utility model mainly solves the technical problems existing in the above prior art, and provides a shrinkage rate measuring device for BMC materials.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a shrinkage measurement device for BMC materials, comprising a base plate, a support platform is fixedly installed at the center position of the upper end surface of the base plate, and the upper end surface of the base plate is located on the peripheral side of the support platform and is provided with multiple groups of measuring components; the measuring components include a fixed platform, an electronic measuring meter is fixedly installed on the fixed platform, a clamping structure is movably installed at the end of the electronic measuring meter, an adjustment structure is arranged on the bottom surface of the fixed platform, the adjustment structure includes an adjustment rail slidably connected to the base plate, an adjustment groove is opened on the upper surface of the adjustment rail, a threaded rod is rotatably installed inside the adjustment groove, and one end of the threaded rod passes through the corresponding position of the end of the adjustment rail and extends to the outside of the adjustment rail, a sliding block matched with the adjustment groove is fixedly installed on the bottom of the fixed platform, and the sliding block is threadedly connected to the threaded rod.

[0007] Preferably, the clamping structure includes a threaded sleeve threadedly connected to the end of the electronic measuring meter, a connecting plate is fixedly installed at the end of the threaded sleeve, and fixed plates are fixedly installed at both ends of the connecting plate, wherein a locking rod is threadedly connected to the fixed plate at the upper end, and an extrusion block is fixedly connected to the end of the locking rod.

[0008] Preferably, a slide rail is provided on the upper surface of the bottom plate, the slide rail is arranged in a circular ring, and arc blocks used in conjunction with the slide rail are fixedly installed on the bottom surfaces of the plurality of adjustment rails.

[0009] Preferably, an electromagnet is fixedly mounted on the upper surface of the support platform, an iron block is magnetically connected to the upper portion of the electromagnet, a plurality of extension rods are rotatably connected to the circumference of the electromagnet, and the plurality of extension rods are all arranged between the two groups of measuring components.

[0010] Preferably, the support platform is provided with mounting grooves below the plurality of extension rods, the interior of the mounting grooves is rotatably connected with electric telescopic rods, and the output ends of the electric telescopic rods are slidably connected with the bottom surfaces of the extension rods.

[0011] Preferably, a movable block is fixedly mounted on the output end of the electric telescopic rod, a sliding groove matching the movable block is provided on the bottom surface of the extension rod, and the movable block is slidably mounted in the sliding groove.

[0012] Preferably, a lifting rod is fixedly mounted at the center of the outer wall of the iron block, and a yielding groove matching the lifting rod is provided on the upper end surface of the electromagnet.

[0013] Beneficial Effects

[0014] The utility model provides a shrinkage rate measuring device for BMC materials, which has the following beneficial effects:

[0015] (1) The shrinkage rate measuring device for BMC materials can obtain multiple groups of data during a single measurement by setting multiple groups of measuring components to measure different orientations of the object to be measured simultaneously. By comparing and calculating multiple groups of data, the accuracy of calculating the shrinkage rate of the object to be measured can be improved.

[0016] (2) The shrinkage rate measuring device for BMC materials allows the user to not only adjust the orientation of the electronic measuring instrument according to the shape and size of the object to be measured, but also adjust the distance between the electronic measuring instrument and the object to be measured by rotating the threaded rod to adapt to the shape of the object to be measured. When the threaded rod rotates, the position of the electronic measuring instrument can be quickly adjusted and the electronic measuring instrument can be limited, making the process of adjusting the position of the electronic measuring instrument more convenient and fast. Description of the Drawings

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained according to the provided drawings.

[0018] The structures, proportions, sizes, etc. depicted in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical substance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the measuring component of the present invention;

[0021] Figure 3 It is a schematic diagram of the position distribution of the sliding groove of the present invention;

[0022] Figure 4 It is a schematic diagram of the disassembly of the iron block and the electromagnet structure of the present invention.

[0023] Legend: 1. Bottom plate; 2. Slide rail; 3. Support table; 4. Adjusting rail; 5. Electronic measuring instrument; 6. Fixed table; 7. Connecting plate; 8. Threaded rod; 9. Sliding block; 10. Fixed plate; 11. Extrusion block; 12. Locking rod; 13. Arc-shaped block; 14. Electromagnet; 15. Iron block; 16. Lifting rod; 17. Installation groove; 18. Electric telescopic rod; 19. Extension rod; 20. Chute. Detailed implementation

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] As Figures 1-4 shown, a shrinkage rate measuring device for BMC materials includes a bottom plate 1. A support table 3 is fixedly installed at the center position of the upper end surface of the bottom plate 1. A plurality of measuring components are arranged on the upper end surface of the bottom plate 1 around the support table 3; The measuring component includes a fixed table 6. An electronic measuring instrument 5 is fixedly installed on the fixed table 6. A clamping structure is movably installed at the end of the electronic measuring instrument 5. An adjusting structure is arranged on the bottom surface of the fixed table 6. The adjusting structure includes an adjusting rail 4 slidably connected to the bottom plate 1. An adjusting groove is formed on the upper surface of the adjusting rail 4. A threaded rod 8 is rotatably installed inside the adjusting groove, and one end of the threaded rod 8 passes through the corresponding position at the end of the adjusting rail 4 and extends outside the adjusting rail 4. A sliding block 9 matched with the adjusting groove is fixedly installed at the bottom of the fixed table 6, and the sliding block 9 is threadedly connected to the threaded rod 8;

[0026] Multiple sets of measuring components are distributed on the circumferential side of the object to be measured, enabling multiple measurements to be carried out simultaneously at different positions of the object to be measured, thereby improving the accuracy of the data during shrinkage rate measurement. Moreover, according to the different shapes of the object to be measured, the multiple sets of measuring components can be adjusted to slide on the upper surface of the bottom plate 1. Thus, the device can measure objects to be measured with regular shapes such as squares and circles, and can also measure objects to be measured with irregular shapes. Among them, the device can fix the central position of the object to be measured. Then, with the cooperation of multiple sets of measuring components, the circumferential side of the object to be measured after unfolding can be clamped and measured. Substitute the reading shown on the electronic measuring instrument 5 into the shrinkage rate calculation formula. The shrinkage rate calculation formula is usually expressed as (R before - R after) / R before multiplied by 100%, where R before and R after represent the original size and the final size of the material under specific conditions respectively. Then, the shrinkage rates of objects to be measured with different shapes can be obtained. According to the different shapes of the object to be measured, the user can not only adjust the orientation of the electronic measuring instrument 5, but also adjust the distance between the electronic measuring instrument 5 and the object to be measured by rotating the threaded rod 8 to adapt to the shape of the object to be measured. When the threaded rod 8 rotates, the position of the electronic measuring instrument 5 can be quickly adjusted and the electronic measuring instrument 5 can be limited, making the process of adjusting the position of the electronic measuring instrument 5 more convenient and fast.

[0027] As Figure 2 shown, the clamping structure includes a threaded sleeve threadedly connected to the end of the electronic measuring instrument 5. A connecting plate 7 is fixedly installed at the end of the threaded sleeve. Fixing plates 10 are fixedly installed at both ends of the connecting plate 7. Among them, a locking rod 12 is threadedly connected to the upper fixing plate 10. An extrusion block 11 is fixedly connected to the end of the locking rod 12. When the edge of the object to be measured is placed between the extrusion block 11 and the fixing plate 10, by rotating the locking rod 12, the extrusion block 11 can stably clamp the edge of the object to be measured. Then, when the object to be measured shrinks and deforms, its deformation amount can be reflected on the electronic measuring instrument 5 in real time.

[0028] As Figure 1 shown, a slide rail 2 is provided on the upper surface of the bottom plate 1. The slide rail 2 is arranged in a circular ring shape, and arc-shaped blocks 13 that cooperate with the slide rail 2 are fixedly installed on the bottom surfaces of multiple adjusting rails 4. According to the different shapes of the object to be measured, the multiple sets of measuring components can be adjusted to slide on the upper surface of the bottom plate 1 along the slide rail 2 through the arc-shaped blocks 13. Thus, the device can measure objects to be measured with regular shapes such as squares and circles, and can also measure objects to be measured with irregular shapes.

[0029] As Figure 3As shown, an electromagnet 14 is fixedly installed on the upper surface of the support table 3, and an iron block 15 is magnetically connected to the upper part of the electromagnet 14. A plurality of extension rods 19 are rotatably connected to the circumference of the electromagnet 14, and the plurality of extension rods 19 are all arranged between two groups of measuring components; the connection force between the electromagnet 14 and the iron block 15 is adjustable, and the center position of the object to be measured with different thicknesses can be stably clamped, thereby facilitating multiple groups of measuring components to simultaneously measure the deformation of the object to be measured and then calculate its shrinkage rate.

[0030] like Figure 3 As shown, mounting grooves 17 are provided on the support platform 3 below the plurality of extension rods 19, and the interior of the mounting grooves 17 is rotatably connected with an electric telescopic rod 18, and the output end of the electric telescopic rod 18 is slidably connected to the bottom surface of the extension rod 19; during the extension or shortening process of the electric telescopic rod 18, the output end of the electric telescopic rod 18 can slide on the bottom surface of the extension rod 19, wherein the electric telescopic rod 18 can make the extension rod 19 unfold to a horizontal state, thereby widening the platform for placing the object to be measured in the device; when not in use, the extension rod 19 can be adjusted to be tilted downward and stored by contracting the electric telescopic rod 18, thereby preventing the extension rod 19 from being deformed or damaged by external force collision.

[0031] like Figure 3 As shown, a movable block is fixedly installed at the output end of the electric telescopic rod 18, and a slide groove 20 matching the movable block is opened on the bottom surface of the extension rod 19, and the movable block is slidably installed in the slide groove 20; according to the size of the unfolded area of ​​the object to be measured, the electric telescopic rod 18 can be controlled to extend so that the movable block set at its end slides inside the slide groove 20, so that after the multiple extension rods 19 are opened, they can stably support the objects to be measured with different areas after unfolding.

[0032] like Figure 3 and Figure 4 As shown, a lifting rod 16 is fixedly installed at the center position of the outer wall of the iron block 15, and a yield groove matching the lifting rod 16 is opened on the upper end surface of the electromagnet 14; the cross-section of the lifting rod 16 is T-shaped, so the setting of the lifting rod 16 is convenient for the user to pick up the iron block 15 to separate the iron block 15 from the electromagnet 14. When not in use, the iron block 15 is flipped over so that the lifting rod 16 can be locked downward and accommodated in the yield groove set at the upper end of the electromagnet 14.

[0033] Working principle of the utility model: When in use, the user places the object to be measured at the center position of the bottom plate 1. The support platform 3 and the electromagnet 14 arranged at the center position of the upper end surface of the bottom plate 1 can support the object to be measured. Among them, multiple extension rods 19 arranged on the periphery of the electromagnet 14 can be used to widen the entire placement platform. While lifting the object to be measured to the same horizontal height as the measurement assembly, it can reduce the influence of the deformation caused by the self-gravity of the object to be measured on the measurement result of its shrinkage rate. Among them, according to the size of the unfolded area of the object to be measured, the electric telescopic rod 18 can be controlled to extend, so that the movable block arranged at its end slides inside the chute 20, and then after multiple extension rods 19 are opened, they can stably support the object to be measured with different unfolded areas. Then, according to the different shapes of the object to be measured, multiple groups of measurement assemblies can be adjusted to slide on the upper surface of the bottom plate 1 along the slide rail 2 through the arc-shaped block 13. Then, the device can measure the object to be measured with regular shapes such as squares and circles, and can also measure the object to be measured with irregular shapes. Among them, through the cooperation of the iron block 15 and the electromagnet 14, the center position of the measurement object can be fixed. Then, with the cooperation of multiple groups of measurement assemblies, the periphery of the object to be measured after unfolding can be clamped and measured. Substituting the reading shown on the electronic measuring instrument 5 into the shrinkage rate calculation formula, the shrinkage rate of measurement objects with different shapes can be obtained. Among them, according to the different shapes of the object to be measured, the user can not only adjust the orientation of the electronic measuring instrument 5, but also adjust the distance between the electronic measuring instrument 5 and the object to be measured by rotating the threaded rod 8 to adapt to the shape of the object to be measured. When the threaded rod 8 rotates, the position of the electronic measuring instrument 5 can be quickly adjusted and the electronic measuring instrument 5 can be limited, making the position adjustment process of the electronic measuring instrument 5 more convenient and fast.

[0034] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A shrinkage measurement device for BMC materials, comprising a base plate (1), a support platform (3) being fixedly mounted at the center of the upper end surface of the base plate (1), characterized in that: The upper end surface of the base plate (1) is located on the peripheral side of the support platform (3) and is provided with a plurality of groups of measuring components; the measuring components include a fixed platform (6), an electronic measuring meter (5) is fixedly mounted on the fixed platform (6), a clamping structure is movably mounted at the end of the electronic measuring meter (5), an adjustment structure is arranged on the bottom surface of the fixed platform (6), the adjustment structure includes an adjustment rail (4) slidably connected to the base plate (1), an adjustment groove is provided on the upper surface of the adjustment rail (4), a threaded rod (8) is rotatably mounted inside the adjustment groove, and one end of the threaded rod (8) passes through a corresponding position at the end of the adjustment rail (4) and extends to the outside of the adjustment rail (4), a sliding block (9) matched with the adjustment groove is fixedly mounted on the bottom of the fixed platform (6), and the sliding block (9) is threadedly connected to the threaded rod (8).

2. A shrinkage measurement device for BMC materials according to claim 1, characterized in that: The clamping structure comprises a threaded sleeve threadedly connected to the end of the electronic measuring meter (5), a connecting plate (7) is fixedly installed at the end of the threaded sleeve, and fixing plates (10) are fixedly installed at both ends of the connecting plate (7), wherein a locking rod (12) is threadedly connected to the fixing plate (10) at the upper end, and an extrusion block (11) is fixedly connected to the end of the locking rod (12).

3. The shrinkage measurement device for BMC material according to claim 1, characterized in that: The upper surface of the base plate (1) is provided with a slide rail (2), the slide rail (2) is arranged in a circular ring, and arc blocks (13) used in conjunction with the slide rail (2) are fixedly mounted on the bottom surfaces of the plurality of adjustment rails (4).

4. The shrinkage measurement device for BMC material according to claim 1, characterized in that: An electromagnet (14) is fixedly mounted on the upper surface of the support platform (3); an iron block (15) is magnetically connected to the upper surface of the electromagnet (14); a plurality of extension rods (19) are rotatably connected to the circumference of the electromagnet (14); and the plurality of extension rods (19) are all arranged between the two groups of measuring components.

5. The shrinkage measurement device for BMC material according to claim 4, characterized in that: The support platform (3) is provided with mounting grooves (17) below the plurality of extension rods (19), the interior of the mounting grooves (17) is rotatably connected with an electric telescopic rod (18), and the output end of the electric telescopic rod (18) is slidably connected to the bottom surface of the extension rod (19).

6. The shrinkage measurement device for BMC material according to claim 5, characterized in that: A movable block is fixedly mounted on the output end of the electric telescopic rod (18), a sliding groove (20) matching the movable block is provided on the bottom surface of the extension rod (19), and the movable block is slidably mounted in the sliding groove (20).

7. The shrinkage measurement device for BMC material according to claim 4, characterized in that: A lifting rod (16) is fixedly mounted at the center of the outer wall of the iron block (15), and a clearance groove matching the lifting rod (16) is provided on the upper end surface of the electromagnet (14).

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