Epoxy resin spline split type cavity casting mold

Abstract

The utility model relates to an epoxy resin spline split type cavity casting mold which comprises a lower mold block and at least two upper mold blocks, the at least two upper mold blocks are sequentially and detachably installed on one end face of the lower mold block side by side, a cavity is formed between every two adjacent upper mold blocks, and an exhaust gap is reserved between the connecting faces of every two adjacent upper mold blocks. According to the invention, air holes in the curing process of the epoxy resin casting sample strip can be effectively reduced, the fracture or damage phenomenon possibly occurring when the sample strip is taken out can be effectively improved, the damage to the mechanical property of the resin sample strip is reduced, the subsequent mechanical property test is not influenced, the use cost is reduced, and the cavity is convenient to clean.

Description

Technical Field

[0001] The present application relates to the field of epoxy resin spline casting molds, and in particular to an epoxy resin spline split cavity casting mold. Background Art

[0002] At present, traditional epoxy resin splines are generally divided into an upper mold and a lower mold with two layers. The upper mold and the lower mold are integral molds. When demolding, the upper and lower layers are separated, and then the resin spline is pressed out of the cavity to complete the demolding.

[0003] For example, a Chinese patent publication number CN220095267U is an epoxy resin mold, which mainly casts epoxy resin strips through the cooperation of the upper and lower cover plates and the bottom plate, and the cover plate and the bottom plate cooperate to form an integral mold with an upper mold and a lower mold; another example is a resin strip casting mold with a Chinese patent publication number CN116749412A, which mainly casts epoxy resin strips through the cooperation of the upper, middle and lower three layers of the first template, the core mold and the second template, the core mold and the first template are detachably installed, but after the two are installed, they cooperate with the second template to form an integral mold with an upper mold and a lower mold.

[0004] However, the inventors believe that this traditional upper and lower molds are integral molds with the following defects: First, the friction resistance between the resin spline and the cavity wall is too large when it is taken out, and it may be broken or damaged, affecting the subsequent mechanical properties test; second, during the casting process, there may be bubbles in the resin at the bottom of the cavity that cannot overflow, resulting in pores in the cured resin spline, which damages its mechanical properties; third, the number of cavities is fixed. When the number of casting splines needs to be increased, new molds can only be made or ordered, which makes the cost too high; fourth, after long-term use, the accuracy of some cavities may decrease and cannot meet the sample making requirements. In order to ensure the number of samples in each batch, the entire mold can only be replaced; fifth, the mold needs to be cleaned frequently during use, but the cavity is not easy to clean due to the small space and the strong adhesion of the resin after curing. Summary of the invention

[0005] In order to improve the possible breakage or damage of the spline when it is taken out, reduce the damage to the mechanical properties of the resin spline, not affect the subsequent mechanical properties test, reduce the cost of use, and facilitate the cleaning of the cavity.

[0006] The present application provides an epoxy resin spline split cavity casting mold, which adopts the following technical solution:

[0007] An epoxy resin spline split cavity casting mold comprises a lower module and at least two upper modules, wherein the at least two upper modules are sequentially arranged side by side and detachably mounted on one end surface of the lower module, a cavity is formed between adjacent upper modules, and an exhaust gap is left between the connecting surfaces of adjacent upper modules.

[0008] Optionally, when there are two upper modules, the two upper modules are edge forming panels respectively; when there are at least three upper modules, the upper modules are two edge forming panels located at the outermost sides and at least one middle forming panel located in the middle area.

[0009] Optionally, the edge forming plates and the middle forming plates include a head end plate, a middle plate, and an end plate that are connected in sequence, the relative end faces of adjacent head end plates and the relative end faces of adjacent end plates are matched and plugged in, and convex plates are respectively arranged in the middle of adjacent middle plates facing each other, and the convex plates of adjacent middle plates do not contact each other.

[0010] Optionally, two ends of the middle plate of the edge forming plate are respectively arranged on one side of the corresponding head end plate and the end end plate close to the outer edge.

[0011] Optionally, the two ends of the middle plate of the middle forming plate are respectively arranged at the middle positions of the corresponding head end plate and the tail end plate.

[0012] Optionally, there are gaps between the opposite end surfaces of adjacent head end plates and between the opposite end surfaces of adjacent tail end plates.

[0013] Optionally, the structure of the matching plug-in between the relative end faces of adjacent head end plates and the relative end faces of adjacent tail end plates is: a plug-in slot is provided in the middle of one of the relative end faces, and a plug-in block is provided in the middle of the other relative end face, the plug-in block is adapted to the plug-in slot, and a gap is left between the plug-in block and the plug-in slot.

[0014] Optionally, each of the upper modules is provided with threaded holes at the head end, the tail end and the middle position, and the lower module is provided with mounting holes corresponding to the positions of the threaded holes of each upper module.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. Through the design scheme that at least two upper modules are arranged side by side and detachably installed on the lower module, the epoxy resin cured spline can be more easily removed without damaging the spline when removing the spline. At the same time, an exhaust gap is left between the connecting surfaces of adjacent upper modules, so that the air mixed inside during resin casting can seep out from the exhaust gap, reducing the pores inside the spline after curing, and making resin cured splines with a higher pass rate. This design can effectively improve the possible breakage or damage of the spline when it is taken out, reduce the damage to the mechanical properties of the resin spline, do not affect the subsequent mechanical properties test, reduce the cost of use, and facilitate the cleaning of the cavity.

[0017] 2. The number of upper modules can be increased or decreased according to demand, thereby increasing or decreasing the number of resin castings in each batch, making the selection of casting quantity more flexible and avoiding the situation where traditional molds have to be replaced due to increase or decrease in quantity.

[0018] 3. Each upper module in this design is relatively independently and detachably installed on the lower module, so that the upper module with damaged precision can be replaced more freely, which effectively solves the problem that the entire mold has to be replaced due to damage to individual cavities in traditional molds, greatly saving cost expenditure.

[0019] 4. At the same time, since each upper module is relatively independently and detachably installed on the lower module, when cleaning is needed, the corresponding upper module can be removed separately, making the cleaning work more convenient and the cleaning effect better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an epoxy resin spline split cavity casting mold according to an embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of the structure of an edge molding plate of an epoxy resin spline split cavity casting mold according to an embodiment of the present application.

[0022] Figure 3 It is a schematic diagram of the structure of a middle molding plate of an epoxy resin spline split-cavity casting mold according to an embodiment of the present application.

[0023] Explanation of the reference numerals: 1. lower module; 2. exhaust gap; 3. cavity; 4. head end plate; 5. middle plate; 6. end plate; 7. plug-in groove; 8. plug-in block; 9. convex plate; 10. threaded hole. DETAILED DESCRIPTION

[0024] The following is combined with Figures 1 to 3 This application is described in further detail.

[0025] The present application embodiment discloses an epoxy resin spline split cavity casting mold. Figure 1, including a lower module 1 and at least two upper modules, at least two upper modules are sequentially arranged side by side and detachably installed on one end surface of the lower module 1, a cavity 3 is formed between adjacent upper modules, and an exhaust gap 2 is left between the connecting surfaces of adjacent upper modules. Under normal circumstances, in order not to affect the molding effect, this exhaust gap 2 should be set as small as possible, but the prerequisite is that the exhaust effect must be guaranteed.

[0026] In this embodiment, when there are two upper modules, the two upper modules are edge forming plates respectively; when there are at least three upper modules, the upper modules are two edge forming plates located at the outermost sides and at least one middle forming plate located in the middle area, and the middle forming plates located in the middle area are all arranged side by side.

[0027] Reference Figure 2 , 3 The edge forming plate and the middle forming plate mentioned above both include a head end plate 4, a middle plate 5, and an end plate 6 connected in sequence, wherein the two ends of the middle plate 5 of the edge forming plate are respectively arranged on one side close to the outer edge of the corresponding head end plate 4 and the end plate 6, while the two ends of the middle plate 5 of the middle forming plate are respectively arranged in the middle position of the corresponding head end plate 4 and the end plate 6.

[0028] In this embodiment, the relative end faces of adjacent head end plates 4 and the relative end faces of adjacent end plates 6 are matched and plugged in, and gaps are left between the relative end faces of adjacent head end plates 4 and the relative end faces of adjacent end plates 6; the structure of the matching and plugging between the relative end faces of adjacent head end plates 4 and the relative end faces of adjacent end plates 6 is: a plug-in slot 7 is provided in the middle of one of the relative end faces, and a plug-in block 8 is provided in the middle of the other relative end face, the plug-in block 8 is adapted to the plug-in slot 7, and a gap is left between the plug-in block 8 and the plug-in slot 7, wherein the shapes of the plug-in slot 7 and the plug-in block 8 are not limited, and can be a triangular structure, a trapezoidal structure, a fan-shaped structure, or a semicircular structure. Its main function is to ensure that adjacent upper modules can be quickly paired through the plug-in structure, and on the other hand, to reduce unnecessary misalignment and shaking during assembly; and in this embodiment, convex plates 9 are respectively provided in the middle of adjacent intermediate plates 5 facing each other, and the convex plates 9 of adjacent intermediate plates 5 do not contact each other.

[0029] In addition, in order to facilitate the disassembly and installation of each upper module relative to the lower module 1, threaded holes 10 are provided at the head end, the end and the middle position of each upper module, and the lower module 1 is provided with mounting holes corresponding to the positions of the threaded holes 10 of each upper module. When the size ratio of each upper module has been set, the setting position of the mounting holes and the threaded holes 10 is also a basic condition to ensure that an exhaust gap 2 is left between the connecting surfaces of adjacent upper modules.

[0030] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An epoxy resin spline split cavity casting mold, characterized in that: It comprises a lower module (1) and at least two upper modules, wherein the at least two upper modules are sequentially arranged side by side and detachably mounted on one end surface of the lower module (1), a cavity (3) is formed between adjacent upper modules, and an exhaust gap (2) is left between the connecting surfaces of adjacent upper modules.

2. The epoxy resin spline split cavity casting mold according to claim 1, characterized in that: When there are two upper modules, the two upper modules are edge forming panels respectively; when there are at least three upper modules, the upper modules are two edge forming panels located at the outermost sides and at least one middle forming panel located in the middle area.

3. The epoxy resin spline split cavity casting mold according to claim 2, characterized in that: The edge forming plates and the middle forming plates both comprise a head end plate (4), a middle plate (5), and an end plate (6) which are connected in sequence; the opposite end surfaces of adjacent head end plates (4) and the opposite end surfaces of adjacent end plates (6) are matched and plugged in; the middle parts of adjacent middle plates (5) are respectively provided with convex plates (9) facing each other; and the convex plates (9) of adjacent middle plates (5) do not contact each other.

4. The epoxy resin spline split cavity casting mold according to claim 3, characterized in that: The two ends of the middle plate (5) of the edge forming plate are respectively arranged on one side close to the outer edge of the corresponding head end plate (4) and the end end plate (6).

5. The epoxy resin spline split cavity casting mold according to claim 3, characterized in that: The two ends of the middle plate (5) of the middle forming plate are respectively arranged at the middle positions of the corresponding head end plate (4) and the end end plate (6).

6. The epoxy resin spline split cavity casting mold according to claim 3, characterized in that: Gaps are left between the opposite end surfaces of the adjacent head end plates (4) and between the opposite end surfaces of the adjacent tail end plates (6).

7. The epoxy resin spline split cavity casting mold according to claim 3, characterized in that: The structure of the matching plug-in connection between the opposite end faces of the adjacent head end plates (4) and the opposite end faces of the adjacent tail end plates (6) is as follows: a plug-in slot (7) is provided in the middle of one of the opposite end faces, and a plug-in block (8) is provided in the middle of the other opposite end face; the plug-in block (8) is matched with the plug-in slot (7), and a gap is left between the plug-in block (8) and the plug-in slot (7).

8. The epoxy resin spline split cavity casting mold according to claim 1, characterized in that: A threaded hole (10) is provided at the head end, the tail end and the middle position of each upper module, and the lower module (1) is provided with a mounting hole corresponding to the position of each upper module threaded hole (10).

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