Detachable mold convenient to demold

Abstract

The detachable mold convenient to demold comprises an upper mold and a lower mold, the upper mold is of a flat plate structure, the lower mold comprises a main mold and a sliding block which are detachably connected, the main mold comprises a bottom plate, a shallow groove is formed in the middle of the bottom plate, a protruding block is arranged on the upper side of the bottom plate, and the protruding block is located on one side of the shallow groove. The side wall of the protruding block is connected with the inner wall of the shallow groove, the outer contour of the sliding block is the same as that of the protruding block, the sliding block is located on the other side of the shallow groove, and a lower die cavity is defined by the side wall of the sliding block, the bottom face of the shallow groove and the side wall of the protruding block. The detachable mold convenient to demold is used for the production process of the carbon bulkhead of the unmanned aerial vehicle and has the advantages of being scientific in design and convenient to demold.

Description

Technical Field

[0001] The utility model relates to a mould for producing a carbon spacer frame, in particular to a detachable mould which is convenient for demoulding. Background Art

[0002] Unmanned aircraft, referred to as "drones", are unmanned aircraft controlled by radio remote control equipment and self-contained program control devices. There is no cockpit on the aircraft, but it is equipped with autopilots, program control devices and other equipment. Personnel on the ground, on ships or at the mother aircraft remote control station use radar and other equipment to track, locate, remotely control, telemeter and digitally transmit it. Carbon fiber bulkheads are one of the important structural components of the drone body. Their main functions include bearing force or serving as a fixing plate for airborne equipment. At present, the production of carbon bulkheads usually involves first making the outer contour of the carbon bulkhead through a mold, and then machining the holes required for the carbon bulkhead through a milling cutter. The existing carbon bulkhead production mold usually includes a lower mold plate and an upper mold plate. The mold cavity is set on the lower mold plate, and the carbon fiber prepreg is laid in the mold cavity. The mold is heated and closed, and the upper mold plate extrude the carbon fiber prepreg, and then heats and solidifies it, and cools and demolds it. However, due to thermal expansion and contraction, after the mold is cooled, there is an inward extrusion force on the product, making it difficult to demold the product.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0004] The utility model aims to provide a detachable mold which is convenient for demoulding, in view of the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A detachable mold for easy demoulding comprises an upper mold and a lower mold, the upper mold is a flat plate structure, the lower mold comprises a main mold and a slider that are detachably connected, the main mold comprises a bottom plate, a shallow groove is provided in the middle of the bottom plate, a protrusion is provided on the upper side of the bottom plate, the protrusion is located on one side of the shallow groove, and the side wall of the protrusion is connected to the inner wall of the shallow groove, the slider has the same outer contour as the protrusion, the slider is located on the other side of the shallow groove, and the side wall of the slider, the bottom surface of the shallow groove, and the side wall of the protrusion surround the lower mold cavity.

[0007] The shallow groove is circular, and the side wall of the sliding block and the side wall of the protrusion connected to the shallow groove are correspondingly arc-shaped.

[0008] Arc-shaped notches are respectively arranged on the upper side surfaces where the protrusion abuts against the sliding block. When the protrusion abuts against the sliding block, the two arc-shaped notches form a U-shaped crowbar groove.

[0009] A silicone plate is placed in the lower mold cavity, and the shape of the silicone plate is adapted to the inner contour of the lower mold cavity.

[0010] One side of the upper die and the lower die is respectively provided with a die fixing hole.

[0011] A plurality of threaded holes and a plurality of positioning pin holes are arranged on the bottom plate, and a plurality of bolt fixing countersunk holes and a plurality of positioning pin holes are arranged on the sliding block.

[0012] Compared with the prior art, the utility model has the beneficial effect that the utility model provides a detachable mold that is easy to demould, which is used in the production process of carbon bulkheads and has the advantage of easy demould. Specifically, the lower mold is divided into two detachable parts through the slider design, and a silicone plate is placed between the upper mold and the lower mold for demould. In addition, the slider and the raised arc-shaped notch form a U-shaped crowbar groove to serve as a crowbar point during demould. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the upper die and the lower die in the utility model.

[0015] Figure 3 It is a structural schematic diagram of the carbon partition frame product of the utility model.

[0016] In the figure: 1. Main mold; 11. Bottom plate; 12. Bump; 13. Shallow groove; 2. Slider; 3. Silicone plate; 4. Bolt fixing countersunk hole; 5. Locating pin hole; 6. U-shaped crowbar groove; 7. Mold fixing hole; 8. Carbon spacer frame; 81. Weight reduction hole; 82. Wire hole; 83. Equipment avoidance hole; 84. Bolt fixing hole; 85. Equipment fixing hole. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0018] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. "Installed", "provided with", "connected", etc. can adopt conventional means in the prior art, such as: integral setting, snap-on installation, welding connection, adhesive connection, bolt connection, etc. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances, and suitable connection, setting or installation methods can be selected in the prior art.

[0019] like Figure 1-3As shown, a detachable mold for easy demoulding includes an upper mold and a lower mold, the upper mold is a flat plate structure (not shown), and the lower mold includes a main mold 1 and a slider 2 that are detachably connected. The main mold 1 includes a bottom plate 11, a shallow groove 13 is provided in the middle of the bottom plate 11, and a protrusion 12 is provided on the upper side of the bottom plate 11. The protrusion 12 is located on one side of the shallow groove 13, and the side wall of the protrusion 12 is connected to the inner wall of the shallow groove 13. The slider 2 has the same outer contour as the protrusion 12, and the slider 2 is located on the other side of the shallow groove 13. The side wall of the slider 2, the bottom surface of the shallow groove 13, and the side wall of the protrusion 12 surround the lower mold cavity.

[0020] The mold is used in the production process of carbon spacer frames, and has the advantage of easy demoulding. The carbon spacer frame is in the shape of a cylindrical groove. The bottom surface of the groove is provided with weight reduction holes 81, wire holes 82, equipment avoidance holes 83, bolt fixing holes 84, and equipment fixing holes 85 for installation. Specifically, the lower mold is divided into two detachable parts through the slider design for easy demoulding.

[0021] In one embodiment, the shallow groove 13 is circular, and the side wall of the slider 2 and the side wall of the protrusion 12 connected to the shallow groove 13 are correspondingly arc-shaped.

[0022] In one of the embodiments, arc-shaped notches are respectively provided on the upper side surfaces where the protrusion 12 abuts against the slider 2. When the protrusion 12 abuts against the slider 2, the two arc-shaped notches form a U-shaped crowbar groove 6. The U-shaped crowbar groove design also facilitates separation of the upper mold and the lower mold for demolding.

[0023] In one embodiment, a silicone plate 3 is placed in the lower mold cavity, and the shape of the silicone plate 3 is adapted to the inner contour of the lower mold cavity. During use, the silicone plate is placed between the upper mold and the lower mold for easy demoulding.

[0024] In one embodiment, one side of the upper mold and the lower mold is respectively provided with a mold fixing hole 7 for mold clamping and fixing. Specifically, two mold fixing holes 7 are provided, which are located on the side of the protrusion away from the slider.

[0025] In one embodiment, a plurality of threaded holes and a plurality of positioning pin holes 5 are provided on the bottom plate 11, and a plurality of bolt fixing countersunk holes 4 and a plurality of positioning pin holes 5 are provided on the slider 2, so as to fix the slider to the main mold. Specifically, the bolt fixing countersunk holes 4 are provided in three groups, and the positioning pin holes 5 are provided in two groups.

[0026] The above embodiments can be combined with each other.

[0027] The method of using the mold includes the following steps: 1. The main mold and the slider are fixed with bolts through positioning pins and threaded holes; 2. Four layers of 3K prepreg are laid on the concave surface of the mold; 3. The silicone plate is placed inside the 3K prepreg; 4. It is placed in a 140°C oven and heated for 20 minutes; 5. The flat mold is fixed on the main mold and the bolts are locked. At this time, the internal silicone plate and the main mold will squeeze the 3K prepreg. 6. Continue to put it in a 140°C oven, and after curing for 2 hours, take out the mold. 7. Cool the mold, first remove the flat mold, then remove the silicone plate, then remove the slider, and take out the product.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A detachable mold for easy demoulding, comprising an upper mold and a lower mold, wherein the upper mold is a flat plate structure, characterized in that: The lower mold includes a main mold and a slider that are detachably connected. The main mold includes a bottom plate. A shallow groove is arranged in the middle of the bottom plate. A protrusion is arranged on the upper side of the bottom plate. The protrusion is located on one side of the shallow groove, and the side wall of the protrusion is connected to the inner wall of the shallow groove. The slider has the same outer contour as the protrusion. The slider is located on the other side of the shallow groove. The side wall of the slider, the bottom surface of the shallow groove, and the side wall of the protrusion form a lower mold cavity.

2. The detachable mold for easy demoulding according to claim 1, characterized in that: The shallow groove is circular, and the side wall of the sliding block and the side wall of the protrusion connected to the shallow groove are correspondingly arc-shaped.

3. The detachable mold for easy demoulding according to claim 1 or 2, characterized in that: Arc-shaped notches are respectively arranged on the upper side surfaces where the protrusion abuts against the sliding block. When the protrusion abuts against the sliding block, the two arc-shaped notches form a U-shaped crowbar groove.

4. The detachable mold for easy demoulding according to claim 1 or 2, characterized in that: A silicone plate is placed in the lower mold cavity, and the shape of the silicone plate is adapted to the inner contour of the lower mold cavity.

5. The detachable mold for easy demoulding according to claim 1 or 2, characterized in that: One side of the upper die and the lower die is respectively provided with a die fixing hole.

6. The detachable mold for easy demoulding according to claim 1 or 2, characterized in that: A plurality of threaded holes and a plurality of positioning pin holes are arranged on the bottom plate, and a plurality of bolt fixing countersunk holes and a plurality of positioning pin holes are arranged on the sliding block.

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