Epoxy resin bead preparation mold with easy peel

Abstract

The utility model provides a kind of epoxy resin cake preparation mould of easy to peel, belong to cake preparation technical field, solve the problem that the accuracy of test is influenced by the lubricating substance attached on the cake in prior art and the cake is easily damaged when taking out.The utility model discloses a bottom plate, the bottom plate is placed with release film, and the release film is placed with the annular part for accommodating glue on it.The bottom plate and the annular part are set as split type structure, and the release film is placed between the bottom plate and the annular part, and the melted glue is added to the annular part.When the glue solidifies into cake, the cake is taken out from the annular part and the release film is torn off, and the whole operation process will not attach lubricating substance on the cake, ensure the accuracy of cake test, and the operation is simple, and the cake is not easy to be damaged.

Description

Technical Field

[0001] This utility model belongs to the field of epoxy resin cake preparation technology, specifically to an epoxy resin cake preparation mold that is easy to peel off. Background Technology

[0002] Epoxy resins are a general term for polymers containing two or more epoxy groups in their molecules. They are condensation products of epichlorohydrin and bisphenol A or polyols. Due to the chemical reactivity of epoxy groups, various compounds containing active hydrogen can be used to open their rings, cure and crosslink them to form a network structure, thereby giving them excellent electrical and mechanical properties. They are widely used in electrical insulation, adhesives, coatings, and many other fields.

[0003] In the field of electrical insulation, to determine the electrical properties of epoxy resins used and thus their application, it is often necessary to test the basic electrical properties, such as the breakdown field strength, of the cured epoxy resin disc (referred to as a disc). Generally, epoxy resin is mixed with a suitable curing agent in a specific ratio and then cured in a circular mold at heat or room temperature to form a disc of a certain thickness, typically 1-2 mm, with a diameter of about 10 cm. The mold material is usually aluminum, stainless steel, or polytetrafluoroethylene (PTFE).

[0004] Because epoxy resin has extremely strong adhesive properties, once cured in the mold, it almost fuses together with the molded material, making it extremely difficult to remove. Currently, the common method is to apply lubricants such as petroleum jelly, machine oil, or commercial mold release agents to the mold and then pry the resin cake out from the edge of the mold. The drawbacks are twofold: firstly, the applied substance remains at the bottom of the resin cake, inevitably affecting the electrical properties of the tested cake and introducing significant errors, even misjudging the application area of ​​the epoxy resin; secondly, for thin resin cakes with lower strength, prying can easily cause the cake to break, rendering the entire test useless and increasing the workload. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide an easily peelable epoxy resin cake preparation mold. The mold features a separate base plate and a ring component, with a release film placed between them. Melted colloid is added to the ring component, and once the colloid solidifies into a cake, the cake is removed from the ring component and the release film is peeled off. The entire process prevents any lubricating substances from adhering to the cake, ensuring the accuracy of the cake test. Furthermore, the operation is simple and does not easily damage the cake.

[0006] The technical solution adopted in this utility model is as follows: An easy-to-peel epoxy resin cake preparation mold includes a base plate on which a release film is placed, and a ring for receiving the colloid is placed on the release film.

[0007] Preferably, at least two opposing "7"-shaped mounting brackets are fixedly connected to the outer side of the base plate, and a first screw is also passed through the vertical thread on the "7"-shaped mounting bracket, with a first pressure plate rotatably connected to the bottom of the first screw.

[0008] Preferably, a guide rod that can be moved through a "7"-shaped mounting bracket is vertically fixedly connected to the first pressure plate.

[0009] Preferably, the “7”-shaped mounting bracket includes a vertical plate and a horizontal plate connected to the vertical plate, and the inner side of the horizontal plate is provided with an arc that matches the outer wall of the ring component.

[0010] Preferably, the inner side of the “7”-shaped mounting bracket is provided with reinforcing ribs.

[0011] Preferably, a second screw is vertically threaded onto the "7"-shaped mounting bracket, and two spaced-apart limit blocks are fixedly mounted on the second screw. A second pressure plate located between the two limit blocks is rotatably sleeved on the second screw.

[0012] Preferably, the ring has a thickness of 2-5 mm, a height of 10 mm, and an inner diameter of 90-150 mm.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: The base plate and the ring are designed as separate components, with a release film placed between them. Melted colloid is added to the ring, and once it solidifies into a gel cake, the gel cake is removed from the ring and the release film is peeled off. The entire process ensures that no lubricating substances adhere to the gel cake, guaranteeing the accuracy of the gel cake test. The operation is also simple and does not easily damage the gel cake. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure provided for an embodiment of the present utility model; Figure 2 This is a top view structural diagram provided for an embodiment of the present utility model; Figure 3 A schematic diagram of the “7”-shaped mounting bracket structure provided in this embodiment of the utility model.

[0016] Reference numerals: 1-Base plate; 2-Release film; 3-Ring component; 4-“7”-shaped mounting bracket; 5-First pressure plate; 6-Reinforcing rib; 7-First screw; 8-Guide rod; 9-Second pressure plate; 10-Second screw; 11-Limiting block. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to 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 is in use, they 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 of this utility model.

[0020] The following is combined with Figures 1-3 This utility model will be described in detail.

[0021] Example An easy-to-peel epoxy resin cake preparation mold includes a base plate 1, a release film 2 placed on the base plate 1, and a ring 3 for containing the colloid placed on the release film 2.

[0022] Release film 2 needs to be heat-resistant to prevent deformation and damage from heat. Release film 2 can be made of polytetrafluoroethylene (PTFE) film, facilitating separation from the adhesive cake. The ring part 3 can be made of materials such as PTFE, aluminum, stainless steel, bamboo, or wood. When the ring part 3 is made of porous materials such as bamboo or wood, PTFE film can be used to wrap the bamboo or wood to prevent the adhesive cake from sticking tightly to the ring part 3, making removal difficult. The base plate 1 can be made of materials such as aluminum, stainless steel, flat wood, composite materials, or PTFE.

[0023] The base plate 1 and the ring part 3 are set as separate structures, and a release film 2 is placed between the base plate 1 and the ring part 3. Melted colloid is added to the ring part 3. After the colloid solidifies into a rubber cake, the rubber cake is removed from the ring part 3 and the release film 2 is peeled off. The entire operation process will not leave any lubricating substances on the rubber cake, ensuring the accuracy of the rubber cake test. The operation is also simple and does not easily damage the rubber cake.

[0024] At least two opposing "7"-shaped mounting brackets 4 are fixedly connected to the outer side of the base plate 1. A first screw 7 is threaded vertically through the "7"-shaped mounting bracket 4, and a first pressure plate 5 is rotatably connected to the bottom of the first screw 7. By rotating the first screw 7, the first pressure plate 5 can be driven to move downwards and press and fix the release film 2, ensuring that the release film 2 is laid flat and fixed on the base plate 1, thereby ensuring the flatness of the adhesive patch and preventing the release film 2 from slipping. In this application, four "7"-shaped mounting brackets 4 are provided, evenly distributed along the circumference.

[0025] A guide rod 8 is vertically fixed to the first pressure plate 5, which is movable and passes through the "7"-shaped mounting bracket 4. The guide rod 8 provides stable guidance for the movement of the first pressure plate 5.

[0026] The “7”-shaped mounting bracket 4 includes a vertical plate and a horizontal plate connected to the vertical plate. The inner side of the horizontal plate is provided with an arc that matches the outer wall of the ring component 3. The arc can limit the ring component 3 and prevent the ring component 3 from sliding laterally, which would affect the curing and forming of the adhesive. The first pressure plate 5 can also be provided with an arc shape.

[0027] The inner side of the “7”-shaped mounting bracket 4 is provided with reinforcing ribs 6. The reinforcing ribs 6 strengthen the structural strength of the corners of the “7”-shaped mounting bracket 4 and prevent the “7”-shaped mounting bracket 4 from deforming and being damaged after long-term use.

[0028] A second screw 10 is vertically threaded onto the "7"-shaped mounting bracket 4. Two spaced-apart limiting blocks 11 are fixedly mounted on the second screw 10. A second pressure plate 9, located between the two limiting blocks 11, is rotatably sleeved on the second screw 10. As the second screw 10 is screwed downwards, the limiting blocks 11 compress the second pressure plate 9 against the upper surface of the ring 3, ensuring the ring 3 fits tightly against the release film 2. This prevents the adhesive from leaking through gaps, thus avoiding misalignment of the adhesive patch shape for testing. To remove the ring 3, simply screw the second screw 10 upwards and rotate the second pressure plate 9 to allow the ring 3 to pass, facilitating its removal.

[0029] The thickness of the ring part 3 is 2~5mm, the height is 10mm, and the inner diameter is 90~150mm. Different sizes of ring parts 3 can be used to make the rubber pellets according to the required size of the rubber pellets for testing.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mold for preparing easily peelable epoxy resin cakes, characterized in that, Includes a base plate (1), on which a release film (2) is placed, and on which a ring (3) for containing the colloid is placed.

2. The epoxy resin cake preparation mold that is easy to peel off according to claim 1, characterized in that, At least two opposing "7"-shaped mounting brackets (4) are fixedly connected to the outer side of the base plate (1). A first screw (7) is also threaded through the "7"-shaped mounting bracket (4). A first pressure plate (5) is rotatably connected to the bottom of the first screw (7).

3. The epoxy resin cake preparation mold that is easy to peel off according to claim 2, characterized in that, The first pressure plate (5) is vertically fixedly connected to a guide rod (8) that can move through the "7"-shaped mounting bracket (4).

4. The epoxy resin cake preparation mold that is easy to peel off according to claim 2, characterized in that, The “7”-shaped mounting bracket (4) includes a vertical plate and a horizontal plate connected to the vertical plate. The inner side of the horizontal plate is provided with an arc that matches the outer wall of the ring component (3).

5. The epoxy resin cake preparation mold that is easy to peel off according to claim 2, characterized in that, The inner side of the "7"-shaped mounting bracket (4) is provided with reinforcing ribs (6).

6. The epoxy resin cake preparation mold that is easy to peel off according to claim 2, characterized in that, The "7"-shaped mounting bracket (4) is vertically threaded with a second screw (10), and two spaced limit blocks (11) are fixedly installed on the second screw (10). A second pressure plate (9) located between the two limit blocks (11) is rotatably sleeved on the second screw (10).

7. The epoxy resin cake preparation mold that is easy to peel off according to claim 1, characterized in that, The ring part (3) has a thickness of 2~5mm, a height of 10mm, and an inner diameter of 90~150mm.

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