Box body forming die

Abstract

The utility model provides a box body forming mold. The box body forming mold comprises an I-shaped locking block, a temperature-resistant magnet, a polyfluortetraethylene plate and a mold insert; the plurality of mold inserts are detachably connected through the temperature-resistant magnets and the I-shaped locking blocks to form a box-shaped cavity; the polyfluortetraethylene plate is installed on the mold splitting surface and located between the two tightly-attached temperature-resistant magnets, and the polyfluortetraethylene plate can timely supplement a thermal expansion gap generated at the splicing seam of the mold under the high-temperature condition, so that the mold splitting surface forms a sealing surface with a good sealing effect; on one hand, the problem that a splicing gap is increased due to overflow of formed resin can be effectively avoided, on the other hand, the glue cleaning problem of the mold splitting surface can be solved, meanwhile, friction and impact of the mold insert on the temperature-resistant magnet due to disassembly are avoided, and the damage risk of the mold splitting surface due to disassembly is reduced; and an I-shaped locking block is matched, so that the connection tightness between the mold inserts can be ensured, and the rapid disassembly and assembly between the mold inserts can also be realized.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a box body forming mold. Background Art

[0002] A mold is a tool used to make molded objects. Different molds are made up of different parts. The mold has a specific contour or inner cavity shape, and the shape of the object is processed by controlling the change in the physical state of the molding material.

[0003] During the use of the mold, the mold insert structure needs to be disassembled. At present, the box body made of composite materials, the insert structure of the box body forming mold used is mainly connected and fixed by bolt + boss positioning structure; the bolt + boss positioning structure is used to connect the insert structure, which has the following main defects:

[0004] 1) Under high temperature conditions, there are gaps and breaks in the joints of the insert structure that seriously affect the appearance of the product;

[0005] 2) The disassembly and assembly efficiency of the bolt locking structure is low, and the glue cleaning operation on the mold split surface is troublesome;

[0006] 3) Composite materials such as resin are easily immersed in the threads of the bolt locking structure, which seriously affects the service life of the threads.

[0007] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Summary of the invention

[0008] In view of the deficiencies in the prior art, the purpose of the present application is to provide a box body forming mold, including an I-shaped locking block, a heat-resistant magnet, a polytetrafluoroethylene plate, and a mold insert; a plurality of the mold inserts are detachably connected through the heat-resistant magnet and the I-shaped locking block to form a box-shaped chamber, and the heat-resistant magnet and the polytetrafluoroethylene plate are embedded in the split surface of the box body forming mold; the polytetrafluoroethylene plate provided in the embodiment of the present application has the characteristics of good thermal expansion, wear resistance, not easy to adhere to other substances, good chemical resistance, etc., its wear resistance is four times that of steel and its thermal expansion coefficient is about ten times that of steel, the polytetrafluoroethylene plate is installed on the mold split surface and is located close to the device Between the two heat-resistant magnets placed, under high temperature conditions, the thermal expansion coefficient of polytetrafluoroethylene material is much higher than that of the mold material, so that it can fully expand to fill the gap on the mold, and the mold split surface forms a sealing surface with a good sealing effect. On the one hand, it can effectively avoid the problem of increased gap in the joints caused by overflow of molding resin, and on the other hand, it can also solve the problem of clearing glue on the mold split surface, while avoiding friction and impact of the mold insert on the heat-resistant magnet due to disassembly, reducing the risk of damage to the mold split surface due to disassembly; equipped with an I-shaped locking block, it can not only ensure the tightness of the connection between the mold inserts, but also realize the rapid disassembly and assembly of the mold inserts.

[0009] To achieve the above objectives, this application adopts the following technical solutions:

[0010] A box body forming mold, comprising an I-shaped locking block, a heat-resistant magnet, a polytetrafluoroethylene plate, and a mold insert; the mold inserts are multiple, and the mold inserts are detachably connected through the heat-resistant magnet and the I-shaped locking block to form a box-shaped cavity;

[0011] The mold insert is provided with a T-shaped groove, and a magnet placement groove is provided inside; a temperature-resistant magnet is matched and arranged in the magnet placement groove;

[0012] The T-shaped grooves between two adjacent mold inserts are arranged correspondingly to form an I-shaped groove, and the I-shaped groove is located on the outer side wall of the box-shaped cavity; the two adjacent mold inserts are detachably connected through the I-shaped groove and the I-shaped locking block;

[0013] The temperature-resistant magnets between two adjacent mold inserts are arranged correspondingly and attract each other, and the polytetrafluoroethylene plate is arranged correspondingly between the two mutually attracting temperature-resistant magnets; the temperature-resistant magnets and the polytetrafluoroethylene plate are both located in the side wall of the box-shaped chamber.

[0014] In some of the embodiments, a heat insulation layer is further included, and a heat insulation layer is disposed on the outer wall of the temperature-resistant magnet.

[0015] In some embodiments, the material of the thermal insulation layer is a high temperature resistant nano thermal insulation board or a ceramic fiber board.

[0016] In some embodiments, it also includes a base plate, which is located at the bottom and has five mold inserts arranged thereon; the base plate and the five mold inserts are detachably connected via temperature-resistant magnets and I-shaped locking blocks to form a box-shaped chamber; the length of the base plate is greater than the length of the mold insert, and the width of the base plate is greater than the width of the mold insert.

[0017] In some of the embodiments, the mold insert is further provided with a positioning boss or a positioning groove, and two adjacent mold inserts are detachably connected via the positioning boss and the positioning groove; wherein the positioning boss and the positioning groove are both located in the side wall of the box-shaped cavity.

[0018] In some embodiments, a disassembly hole is provided on the I-shaped locking block.

[0019] In some embodiments, the disassembly hole is a threaded hole.

[0020] In some embodiments, the polytetrafluoroethylene plate has a thickness of 1-20 mm.

[0021] In some embodiments, the temperature-resistant magnet is detachably connected to the magnet receiving groove by a countersunk bolt.

[0022] In some embodiments, the temperature-resistant magnet can withstand a temperature of 170° C. to meet product curing process requirements.

[0023] The technical solution of the present application comprises an I-shaped locking block, a heat-resistant magnet, a polytetrafluoroethylene plate, and a mold insert; a plurality of the mold inserts are detachably connected by the heat-resistant magnet and the I-shaped locking block to form a box-shaped chamber, the heat-resistant magnet and the polytetrafluoroethylene plate are both located in the split surface of the box-shaped molding mold, and the polytetrafluoroethylene plate is arranged between two correspondingly arranged and mutually attractive heat-resistant magnets; since the polytetrafluoroethylene plate has the characteristics of good thermal expansion, not easy to adhere to other substances, and good chemical resistance, the polytetrafluoroethylene plate is installed on the mold split surface and is located between the two closely arranged heat-resistant magnets. The polytetrafluoroethylene plate can timely supplement the thermal expansion gap generated under high temperature conditions at the mold joint, so that the mold split surface forms a sealing surface with good sealing effect, which can effectively avoid the problem of increased joint gap caused by overflow of molding resin on the one hand, and on the other hand It can solve the glue cleaning problem of the mold splitting surface, and at the same time avoid the friction and impact of the mold insert on the heat-resistant magnet due to disassembly, reduce the risk of damage to the mold splitting surface due to disassembly, and realize the rapid disassembly and assembly of the mold inserts; in addition, the I-shaped groove is located on the outer wall of the box-shaped cavity, and the two adjacent mold inserts are detachably connected through the I-shaped groove and the I-shaped locking block, which plays a role in improving the disassembly and assembly efficiency between the insert structures and can improve the connection tightness between the mold inserts; the technical solution of the present application completes the connection between the insert structures through the detachable connection between the heat-resistant magnets and the detachable connection between the I-shaped grooves and the I-shaped locking blocks, and can solve the problem that when the bolt + boss positioning structure is used to connect the insert structures, the thread of the bolt locking structure is easily immersed in resin and other composite materials, which seriously affects the service life of the thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0025] Figure 1 It is a schematic structural diagram of the box body forming mold of an embodiment of the present application.

[0026] Figure 2 for Figure 1 Section view of section AA.

[0027] Figure 3 for Figure 1Cross-sectional view of the middle BB section.

[0028] Figure 4 This is a schematic diagram of the structure of the I-shaped locking block of an embodiment of the present application.

[0029] Numbers in the figure: 1. I-shaped locking block; 11. Disassembly hole; 2. Heat-resistant magnet; 3. Polytetrafluoroethylene plate; 4. Mold insert; 41. T-shaped groove; 42. Magnet placement groove; 43. Positioning boss; 44. Positioning groove; 5. Composite product; 6. Thermal insulation layer; 8. Bottom plate. DETAILED DESCRIPTION

[0030] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. In the accompanying drawings, for clarity, the sizes of layers, regions, elements and their relative sizes may be exaggerated. Wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0031] It should be understood that when an element or layer is referred to as "on ...", "adjacent to ...", "connected to" or "coupled to" other elements or layers, it can be directly on, adjacent to, connected to or coupled to other elements or layers, or there can be intervening elements or layers. On the contrary, when an element is referred to as "directly on ...", "directly adjacent to ...", "directly connected to" or "directly coupled to" other elements or layers, there is no intervening element or layer. It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present disclosure, the first element, component, region, layer or part discussed below can be represented as the second element, component, region, layer or part. And when the second element, component, region, layer or part is discussed, it does not mean that the present disclosure necessarily has the first element, component, region, layer or part.

[0032] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] The present application provides a box body forming mold, comprising an I-shaped locking block, a heat-resistant magnet, a polytetrafluoroethylene plate, and a mold insert; a plurality of the mold inserts are detachably connected through the heat-resistant magnet and the I-shaped locking block to form a box-shaped chamber; the polytetrafluoroethylene plate is installed on the mold splitting surface and is located between two heat-resistant magnets arranged closely, the polytetrafluoroethylene plate can timely supplement the thermal expansion gap generated under high temperature conditions at the mold joint, so that the mold splitting surface forms a sealing surface with a good sealing effect, on the one hand, it can effectively avoid the problem of increased joint gap caused by overflow of molding resin, on the other hand, it can also solve the problem of clearing glue on the mold splitting surface, and at the same time avoid friction and impact of the mold insert on the heat-resistant magnet due to disassembly, reducing the risk of damage to the mold splitting surface due to disassembly; equipped with an I-shaped locking block, not only can the tightness of the connection between the mold inserts be ensured, but also the rapid disassembly and assembly of the mold inserts can be realized; the connection mode of the bolt + boss positioning structure is abandoned, and the problem that composite materials such as resin are easily immersed in the threaded hole, which affects the service life of the thread, is solved.

[0035] The present application embodiment provides a box body forming mold, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes an I-shaped locking block 1, a temperature-resistant magnet 2, a polytetrafluoroethylene plate 3, and a mold insert 4; the mold insert 4 has multiple pieces, and the mold inserts 4 are detachably connected through the temperature-resistant magnet 2 and the I-shaped locking block 1 to form a box-shaped chamber;

[0036] The mold insert 4 is provided with a T-shaped groove 41, and a magnet placement groove 42 is provided inside; the magnet placement groove 42 is matched with a temperature-resistant magnet 2;

[0037] The T-shaped grooves 41 between two adjacent mold inserts 4 are correspondingly arranged to form an I-shaped groove, and the I-shaped groove is located on the outer side wall of the box-shaped cavity; the two adjacent mold inserts 4 are detachably connected through the I-shaped groove and the I-shaped locking block 1;

[0038] The temperature-resistant magnets 2 between two adjacent mold inserts 4 are arranged correspondingly and attract each other, and the polytetrafluoroethylene plate 3 is arranged correspondingly between the two mutually attractive temperature-resistant magnets 2; the temperature-resistant magnets 2 and the polytetrafluoroethylene plates 3 are both located in the side walls of the box-shaped chamber, that is, the temperature-resistant magnets 2 and the polytetrafluoroethylene plates 3 are both located in the split surface of the box-shaped mold.

[0039] In the embodiment of the present application, the mold inserts 4 are detachably connected by the heat-resistant magnets 2 and the I-shaped locking block 1 to form a box-shaped chamber; the polytetrafluoroethylene plate 3 is installed on the mold splitting surface and is located between the two heat-resistant magnets 2 arranged closely together. The polytetrafluoroethylene plate 3 can timely supplement the thermal expansion gap generated under high temperature conditions at the mold joint, so that the mold splitting surface forms a sealing surface with a good sealing effect. On the one hand, it can effectively avoid the problem of increased joint gap caused by overflow of molding resin, and on the other hand, it can also solve the problem of glue cleaning on the mold splitting surface, while avoiding friction and impact of the mold insert 4 on the heat-resistant magnet 2 due to disassembly, reducing the risk of damage to the mold splitting surface due to disassembly; equipped with the I-shaped locking block 1, the I-shaped locking block 1 plays a role in further improving the tightness of the connection between the mold inserts 4, which can not only ensure the tightness of the connection between the mold inserts 4, but also realize the rapid disassembly and assembly of the mold inserts 4.

[0040] In the embodiment of the present application, the I-shaped locking block 1, the polytetrafluoroethylene plate 3, and the heat-resistant magnet 2 work together to complete the connection between the mold inserts 4, play a role in reducing the matching gap between the mold inserts 4, and improve the appearance quality of the mold joints; the I-shaped locking block 1 that is easy to disassemble is used to replace the more traditional bolt structure, and the bolts do not need to be disassembled, which can effectively improve the disassembly efficiency of the mold insert 4; the polytetrafluoroethylene plate 3 expands at high temperature and can seal the matching surface of the mold insert 4, effectively preventing the resin from penetrating into the bolts, and the service life of the thread is longer, thereby improving the service life of the mold. The box body forming mold provided in the embodiment of the present application can be applied to the batch production process of box body composite products. The product appearance quality is improved by controlling the joint gap of the mold insert 4, improving the sealing effect of the mold insert 4, optimizing the locking structure, etc. The disassembly efficiency of the mold insert 4 is higher, and the service life of the box body forming mold can be effectively extended.

[0041] In an optional embodiment, a heat-insulating layer 6 is also included. The heat-insulating layer 6 is provided on the outer wall of the heat-resistant magnet 2. Under normal circumstances, the heat-resistant magnet 2 will cause the magnetic properties to decay too quickly under conditions of excessive temperature, mechanical damage, liquid erosion, etc. A layer of heat-insulating material is coated on the outer wall of the heat-resistant magnet 2 to form a heat-insulating layer 6, which can enable the heat-resistant magnet 2 to continue to exhibit relatively stable magnetic adsorption performance under high-temperature molding temperature conditions. The heat-insulating layer 6 can completely wrap the heat-resistant magnet 2; the material of the heat-insulating layer 6 is a high-temperature resistant nano-insulating board or a ceramic fiber board; the material of the heat-insulating layer 6 can be selected according to actual needs; the thickness of the heat-insulating layer 6 can be 1mm, 5mm, 10mm, 15mm, 20mm, 25mm. The thickness of the heat-insulating layer 6 can be set according to actual needs, which can effectively alleviate the decay of the magnetic properties of the heat-resistant magnet 2, while ensuring that there is a large attraction between the heat-resistant magnets 2.

[0042] In an optional embodiment, if Figure 1 As shown, it also includes a base plate 8, which is located at the bottom and has five mold inserts 4 arranged thereon. The base plate 8 and the five mold inserts 4 are detachably connected via a temperature-resistant magnet 2 and an I-shaped locking block 1 to form a box-shaped chamber; the five mold inserts 4 serve as the front side, rear side, left side, right side and top side of the box-shaped chamber respectively; the length of the base plate 8 is greater than the length of the mold insert 4, and the width of the base plate 8 is greater than the width of the mold insert 4.

[0043] In the embodiment of the present application, the length and width of the bottom plate 8 are slightly larger than those of the other mold inserts 4, which meets the requirements of the composite molding process for sealing and bag making. In addition, it should be noted that the sizes of the mold inserts 4 can be the same. When the sizes of the mold inserts 4 are the same, a cubic box-shaped cavity can be formed; the sizes of the mold inserts 4 can also be different and arranged in correspondence with each other, so as to form a rectangular box-shaped cavity. Figure 1 As shown; the bottom plate 8 and the mold insert 4 are both used as the assembly surface of the mold, and the connection relationship between the assembly surfaces is as shown Figure 1-Figure 3 As shown, the I-shaped locking block 1 is arranged on the outer side wall of the box-shaped chamber, and the I-shaped locking block 1 completes the detachable connection of adjacent assembly surfaces; and the temperature-resistant magnet 2 and the polytetrafluoroethylene plate 3 are both arranged inside the split surface of the box body mold to realize the detachable connection between adjacent assembly surfaces; it should be noted that the bottom plate 8 is arranged with corresponding T-shaped grooves 41, magnet placement grooves 42 and temperature-resistant magnets 2 according to the positions of the T-shaped grooves 41 and magnet placement grooves 42 of the mold insert 4 serving as the front side, rear side, left side and right side of the box-shaped chamber, so as to facilitate the detachable connection between adjacent assembly surfaces through the temperature-resistant magnets 2 and the polytetrafluoroethylene plate 3.

[0044] In an optional embodiment, if Figure 3As shown, the mold insert 4 is also provided with a positioning boss 43 or a positioning groove 44, and two adjacent mold inserts 4 are detachably connected via the positioning boss 43 and the positioning groove 44; wherein the positioning boss 43 and the positioning groove 44 are both located in the side wall of the box-shaped cavity.

[0045] In the embodiment of the present application, two adjacent mold inserts 4 are detachably connected through the positioning boss 43 and the positioning groove 44, which plays a role in accurate positioning and improving the tightness of the connection between the mold inserts 4; it can further improve the tightness of the connection between the mold inserts 4; the specific connection method can be referred to Figure 3 A positioning boss 43 is provided on the mold insert 4 located at the bottom, and a positioning groove 44 matching the positioning boss 43 is provided on the mold insert 4 located on the right side; the mold insert 4 located at the bottom and the mold insert 4 located on the right side are detachably connected through the positioning boss 43 and the positioning groove 44, thereby further improving the connection tightness between the mold inserts 4.

[0046] In an optional embodiment, if Figure 4 As shown, the I-shaped locking block 1 is provided with a disassembly hole 11; the disassembly hole 11 is a threaded hole, and of course the disassembly hole 11 can also be a cross hole or other structures. The purpose of providing the disassembly hole 11 is to facilitate the insertion of the disassembly parts and complete the rapid disassembly and assembly of the I-shaped locking block 1; for example, the disassembly and assembly hole 11 is a threaded hole. At this time, a screw matching the threaded hole is inserted into the disassembly and assembly hole 11, and then the screw is moved to complete the disassembly and assembly of the I-shaped locking block 1.

[0047] In an optional embodiment, the thickness of the polytetrafluoroethylene plate 3 is 1-20 mm; specifically, the thickness of the polytetrafluoroethylene plate 3 can be 1 mm, 10 mm, 18 mm, 19 mm, or 20 mm; the spacing between the polytetrafluoroethylene plate 3 and the temperature-resistant magnet 2 is controlled within a range of 1 mm to 2 mm, and the thickness of the polytetrafluoroethylene plate 3 is reasonably controlled. With the help of the thermal expansion effect of the polytetrafluoroethylene plate 3, the connection tightness of the mold insert 4 is higher.

[0048] In an optional embodiment, the temperature-resistant magnet 2 is detachably connected to the magnet receiving groove 42 by a countersunk bolt. At this time, the polytetrafluoroethylene plate 3 can also be fixed to the magnet receiving groove 42 by a countersunk bolt. Since the temperature-resistant magnet 2, the polytetrafluoroethylene plate 3 and the magnet receiving groove 42 are detachably connected, it is convenient to replace the temperature-resistant magnet 2 and the polytetrafluoroethylene plate 3, which is more practical.

[0049] In an optional embodiment, the heat-resistant temperature of the heat-resistant magnet 2 is more than 30°C higher than the product molding temperature, which can avoid the adverse effect of temperature on the magnetism of the heat-resistant magnet 2 and ensure the magnetic attraction of the heat-resistant magnet 2, thereby ensuring the tightness of the connection between the mold inserts 4 at high temperature and improving the surface quality of the product produced by the mold. Specific embodiments

[0051] Example 1

[0052] The embodiment provides a box body forming mold, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes an I-shaped locking block 1, a temperature-resistant magnet 2, a polytetrafluoroethylene plate 3, a mold insert 4, an insulation layer 6, and a bottom plate 8; the mold insert 4 has multiple pieces, and the mold insert 4 and the bottom plate 8 are detachably connected through the temperature-resistant magnet 2 and the I-shaped locking block 1 to form a box-shaped chamber; more specifically, the bottom plate 8 is located at the bottom, and five mold inserts 4 are arranged on it, and the bottom plate 8 and the five mold inserts 4 are detachably connected through the temperature-resistant magnet 2 and the I-shaped locking block 1 to form a box-shaped chamber; the five mold inserts 4 serve as the front side, rear side, left side, right side and top side of the box-shaped chamber respectively; the length of the bottom plate 8 is greater than the length of the mold insert 4, and the width of the bottom plate 8 is greater than the width of the mold insert 4;

[0053] The mold insert 4 is provided with a T-shaped groove 41, and a magnet placement groove 42 is provided inside; the magnet placement groove 42 is matched with a temperature-resistant magnet 2; similarly, the bottom plate 8 is provided with corresponding T-shaped grooves 41, magnet placement grooves 42 and temperature-resistant magnets 2 according to the positions of the T-shaped grooves 41 and magnet placement grooves 42 of the mold insert 4 as the front side, rear side, left side and right side of the box-shaped chamber, so that adjacent assembly surfaces can be detachably connected through the temperature-resistant magnets 2 and the polytetrafluoroethylene plate 3;

[0054] The T-shaped grooves 41 between the adjacent assembly surfaces are correspondingly arranged to form an I-shaped groove, and the I-shaped groove is located on the outer side wall of the box-shaped chamber; the adjacent assembly surfaces are detachably connected through the I-shaped groove and the I-shaped locking block 1;

[0055] The temperature-resistant magnets 2 between adjacent assembly surfaces are arranged correspondingly and attract each other, and the polytetrafluoroethylene plate 3 is arranged correspondingly between the two mutually attracting temperature-resistant magnets 2; the temperature-resistant magnets 2 and the polytetrafluoroethylene plates 3 are both located in the side wall of the box-shaped chamber, that is, the temperature-resistant magnets 2 and the polytetrafluoroethylene plates 3 are both located in the splitting surface of the box-shaped mold;

[0056] The outer wall of the temperature-resistant magnet 2 is provided with a heat insulation layer 6; the mold insert 4 is also provided with a positioning boss 43 or a positioning groove 44, and two adjacent mold inserts 4 are detachably connected through the positioning boss 43 and the positioning groove 44; wherein the positioning boss 43 and the positioning groove 44 are both located in the split surface of the box body mold; the specific connection method can be referred to Figure 3, a positioning boss 43 is provided on the mold insert 4 located at the bottom, and a positioning groove 44 matching the positioning boss 43 is provided on the mold insert 4 located on the right side; the mold insert 4 located at the bottom and the mold insert 4 located on the right side are accurately positioned by the positioning boss 43 and the positioning groove 44; the thickness of the polytetrafluoroethylene plate 3 is 2mm; the heat-resistant magnet 2 is detachably connected to the magnet placement groove 42 by a countersunk bolt, and the polytetrafluoroethylene plate 3 can also be fixed to the magnet placement groove 42 by a countersunk bolt, because the heat-resistant magnet 2, the polytetrafluoroethylene plate 3 and the magnet placement groove 42 are detachably connected; it should be noted that only one polytetrafluoroethylene plate 3 is provided between the two heat-resistant magnets 2; the heat-resistant temperature of the heat-resistant magnet 2 is more than 30°C higher than the product molding temperature.

[0057] In the embodiment of the present application, the assembly and use process of the box body forming mold is as follows:

[0058] Step 1: Select a suitable heat-resistant magnet 2, the heat-resistant temperature of which is 30°C higher than the product molding temperature; in addition, the adsorption force between the two heat-resistant magnets 2 is approximately equal to 1.5 to 2 times the weight of the mold insert 4; it should be noted that the adsorption force between the two heat-resistant magnets 2 can be reasonably set according to actual needs, as long as the tightness of the connection between the mold inserts 4 can be ensured;

[0059] Step 2: The heat-resistant magnet 2 is threadedly connected to the magnet placement groove 42 by countersunk bolts. At this time, the polytetrafluoroethylene plate 3 can also be fixed to the magnet placement groove 42 by countersunk bolts. The distance between the polytetrafluoroethylene plate 3 and the heat-resistant magnet 2 is controlled within 1mm to 2mm; the heat-resistant magnet 2, the polytetrafluoroethylene plate 3 and the magnet placement groove 42 are detachably connected; and only one polytetrafluoroethylene plate 3 is arranged between the two heat-resistant magnets 2; synchronously, as Figure 3 As shown, the mold insert 4 is also accurately positioned by the positioning boss 43 and the positioning groove 44, so as to further improve the tightness of the connection between the mold inserts 4;

[0060] Step 3: The disassembly hole 11 is a threaded hole. A screw matching the threaded hole is inserted into the disassembly hole 11, and then the screw is moved to install the I-shaped locking block 1 into the I-shaped groove on the outer wall of the box-shaped cavity to further improve the connection tightness between the mold inserts 4; wherein, at least two I-shaped locking blocks 1 are installed on the split surface of a single mold, and the installation position of the I-shaped locking block 1 is as close as possible to the two ends of the mold insert 4. After the I-shaped locking block 1 is installed, the maximum gap between the I-shaped locking block 1 and the mold insert 4 is controlled within 0.1mm to 0.2mm to ensure the connection tightness between the mold inserts 4;

[0061] Step 4: solidify the composite product 5 in the box-shaped cavity; more specifically, send the box-shaped mold filled with materials into the molding equipment to implement the heating, pressurizing and cooling process for a specified period of time;

[0062] Step 5: Remove the mold insert 4 to take out the composite product 5. More specifically, first remove the I-shaped locking block 1, then remove the mold insert 4 in order from top to bottom, and after removing the mold insert 4, take out the composite product 5 after molding and curing.

[0063] In summary, in the box-body forming mold of the embodiment of the present application, the mold inserts 4 are detachably connected by the heat-resistant magnets 2 and the I-shaped locking block 1 to form a box-shaped chamber; the polytetrafluoroethylene plate 3 is installed on the mold splitting surface and is located between the two heat-resistant magnets 2 arranged closely, and the polytetrafluoroethylene plate 3 can timely supplement the thermal expansion gap generated under high temperature conditions at the mold joint, so that the mold splitting surface forms a sealing surface with good sealing effect, which can effectively avoid the problem of increased joint gap caused by overflow of molding resin on the one hand, and solve the problem of clearing glue on the mold splitting surface on the other hand, and at the same time avoid friction and impact of the mold insert 4 on the heat-resistant magnet 2 due to disassembly, thereby reducing the risk of damage to the mold splitting surface due to disassembly; equipped with an I-shaped locking block 1, the I-shaped locking block 1 can be used to fix the heat-resistant magnets 2 and the heat-resistant magnets 2. The I-shaped locking block 1 plays a role in further improving the tightness of the connection between the mold inserts 4, which can not only ensure the tightness of the connection between the mold inserts 4, but also realize the rapid disassembly and assembly of the mold inserts 4; the I-shaped locking block 1, the polytetrafluoroethylene plate 3, and the heat-resistant magnet 2 work together to complete the connection between the mold inserts 4, reduce the matching gap between the mold inserts 4, and improve the appearance quality of the mold joints; the I-shaped locking block 1 that is easy to disassemble is used to replace the more traditional bolt structure, and the bolts do not need to be disassembled, which can effectively improve the disassembly efficiency of the mold insert 4; the polytetrafluoroethylene plate 3 expands at high temperature, can seal the matching surface of the mold insert 4, effectively prevents resin from penetrating into the bolts, and the service life of the thread is longer, thereby improving the service life of the mold. The box body forming mold provided in the embodiment of the present application can be applied to the batch production process of box body composite products. The appearance quality of the product can be improved by controlling the gap between the mold inserts 4, improving the sealing effect of the mold inserts 4, optimizing the locking structure, etc. The disassembly efficiency of the mold inserts 4 is higher, and the service life of the box body forming mold can be effectively extended; a layer of heat-insulating material is coated on the outer wall of the temperature-resistant magnet 2 to form a heat-insulating layer 6, so that the temperature-resistant magnet 2 can continue to show a relatively stable magnetic adsorption performance under high-temperature molding temperature conditions; a positioning boss 43 or a positioning groove 44 is also provided on the mold insert 4, and two adjacent mold inserts 4 are detachably connected through the positioning boss 43 and the positioning groove 44, which can further improve the connection tightness between the mold inserts 4; a disassembly hole 11 is provided on the I-shaped locking block 1, and the disassembly and assembly of the I-shaped locking block 1 is more convenient; the temperature-resistant magnet 2, the polytetrafluoroethylene plate 3 and the magnet placement groove 42 are detachably connected, which is convenient for replacing the temperature-resistant magnet 2 and the polytetrafluoroethylene plate 3, and has strong practicality.

[0064] It should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The orientation words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Therefore, the exemplary term "above..." can include both "above..." and "below..." orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here are interpreted accordingly.

[0065] It should also be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this application refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0066] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0067] It should also be noted that the above are only preferred embodiments of the present application, and the patent protection scope of the present application is not limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A box body forming mold, characterized in that: It comprises an I-shaped locking block (1), a heat-resistant magnet (2), a polytetrafluoroethylene plate (3), and a mold insert (4); the mold insert (4) comprises a plurality of pieces, and the mold inserts (4) are detachably connected via the heat-resistant magnet (2) and the I-shaped locking block (1) to form a box-shaped chamber; The mold insert (4) is provided with a T-shaped groove (41), and a magnet placement groove (42) is provided inside the mold insert (4); a temperature-resistant magnet (2) is matched and arranged inside the magnet placement groove (42); The T-shaped grooves (41) between two adjacent mold inserts (4) are arranged correspondingly to form an I-shaped groove, and the I-shaped groove is located on the outer side wall of the box-shaped cavity; the two adjacent mold inserts (4) are detachably connected via the I-shaped groove and the I-shaped locking block (1); The temperature-resistant magnets (2) between two adjacent mold inserts (4) are arranged correspondingly and attract each other, and the polytetrafluoroethylene plate (3) is arranged correspondingly between the two mutually attracting temperature-resistant magnets (2); the temperature-resistant magnets (2) and the polytetrafluoroethylene plate (3) are both located in the side wall of the box-shaped chamber.

2. The box body forming mold according to claim 1, characterized in that: It also comprises a heat insulation layer (6), and the heat insulation layer (6) is arranged on the outer side wall of the temperature-resistant magnet (2).

3. The box body forming mold according to claim 2, characterized in that: The material of the heat insulation layer (6) is a high temperature resistant nano heat insulation board or a ceramic fiber board.

4. The box body forming mold according to claim 1, characterized in that: It also includes a bottom plate (8), which is located at the bottom and has five mold inserts (4) arranged thereon; the bottom plate (8) and the five mold inserts (4) are detachably connected via a temperature-resistant magnet (2) and an I-shaped locking block (1) to form a box-shaped chamber; the length of the bottom plate (8) is greater than the length of the mold insert (4), and the width of the bottom plate (8) is greater than the width of the mold insert (4).

5. The box body forming mold according to claim 1, characterized in that: The mold insert (4) is also provided with a positioning boss (43) or a positioning groove (44), and two adjacent mold inserts (4) are detachably connected via the positioning boss (43) or the positioning groove (44); wherein the positioning boss (43) or the positioning groove (44) are both located in the side wall of the box-shaped chamber.

6. The box body forming mold according to claim 1, characterized in that: The I-shaped locking block (1) is provided with a disassembly hole (11).

7. The box body forming mold according to claim 6, characterized in that: The disassembly hole (11) is a threaded hole.

8. The box body forming mold according to claim 1, characterized in that: The thickness of the polytetrafluoroethylene plate (3) is 1-20 mm.

9. The box body forming mold according to claim 1, characterized in that: The temperature-resistant magnet (2) is detachably connected to the magnet placement groove (42) via a countersunk bolt.

10. The box body forming mold according to claim 1, characterized in that: The temperature-resistant magnet (2) has a temperature resistance of 170° C. and meets the product curing process requirements.

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