Molded components

Abstract

A method for manufacturing a component (124) having a body (116) and at least one annular sleeve (118) by means of a molding assembly (100), the method comprising: providing a mold (102) having an inlet (115) and defining a hollow portion (H); arranging at least one core for forming a free space (104, 106) in the component (124) inside the mold (102) to bifurcate the hollow portion (H) into a first cavity and a second cavity; pouring a molding material (117) into the mold (102) through the inlet (115); allowing the molding material (117) to solidify in the first cavity and the second cavity around the core inside the mold (102) to form the body (116) of the component (124). and at least one annular sleeve (118); connecting the first cavity and the second cavity and forming at least one first connection portion and at least one second connection portion (130, 132, 134, 136) between the main body (116) and the at least one annular sleeve (118); and removing at least one core from at least a portion of the hollow portion (H) in the mold (102); characterized in that a core having at least one recess allowing a molding material (117) to flow through is provided, so that at least one first connection portion (130, 132) is disconnected when the core is removed from the mold (102), and at least one second connection portion (134, 136) is disconnected when the core is removed to the outside of the mold (102).

Description

Technical Field

[0001] The present disclosure relates to a component, in particular to a connecting element and a method of manufacturing the component. More particularly, the present disclosure relates to a molding assembly that enables improved simultaneous casting of multiple separate portions of a component. Background Art

[0002] Molding assemblies are often used to solidify molding materials (e.g., metals, plastics, polymers, glass) into a desired shape. Typically, molding assemblies have integrated components for molding. However, in some cases, it may be necessary to separate manufactured components with connected portions. Damage may occur when separating the connected portions of the components. This is often troublesome because the disconnection or any wear that may occur during the separation of the connected portions of the components makes this experience both troublesome and unsatisfactory for the average user.

[0003] An example of a molded component is provided in German patent DE 3 908 479 (referred to herein as the '479 reference). The '479 reference provides a molded assembly comprising a core and a pair of relatively arranged molds. The pair of relatively arranged molds define a cavity between them. The core is a cylindrical core element with a recess. The core is inserted into the cavity and the molding material is injected. However, the '479 reference appears to be provided with an opening in front of the core. The molding material flows from one cavity of the molding assembly to another cavity via the opening, and after the molding material solidifies (or hardens), a connection is formed in the opening area. However, there is no provision for disconnecting these connections.

[0004] Another example of a molded component is provided in European patent EP 3 230 643 (hereinafter referred to as the '643 reference). The '643 reference provides a connection element for one or more flexible pipes. The element is shown as having a body and at least one annular sleeve, which can be moved relative to each other during operation to connect or disconnect with the flexible pipe by a clamping action. The element is manufactured by injection molding. In order to make the manufacture of the element cost-effective, the mold allows the body and the annular sleeve to be manufactured as one component, but the body and the annular sleeve are two independent components during operation. This is achieved in the following way: the two components are connected via at least one connecting portion during the manufacturing process and the user of the element is required to actively disconnect the connecting portion before performing the first operation. However, the user has a psychological barrier to being forced to actively disconnect the connection between the two components of the element.

[0005] Another example of a molded part is provided in German patent DE 3 046 826 (herein referred to as the '826 reference). The '826 reference discloses a casting of a tubular body. During the casting of the tubular body, the flange is cast at the same time. A plurality of connecting plates are retained between the tubular body and the flange, which are used on the one hand to supply the casting material during casting and on the other hand to retain the flange on the tubular body. When the tubular body is machined after casting, the plurality of connecting plates are removed, for example by grinding, so that the final flange then lies loosely on the tubular body. However, the '826 reference seems to provide for disconnecting the connection by an additive manufacturing process (such as grinding).

[0006] Therefore, there is a need for an improved molding machine that can integrally cast multiple components to avoid the above-mentioned problems. Summary of the invention

[0007] In view of the above, an object of the present invention is to solve or at least alleviate the disadvantages discussed above. This object is achieved at least in part by a method for manufacturing a component by a molding assembly. The method includes: providing a mold having an inlet and defining a hollow portion. The method also includes: arranging at least one core for forming a free space in the component inside the mold to bifurcate the hollow portion into a first cavity and a second cavity. The method also includes: pouring a molding material into the mold through the inlet. The method also includes: solidifying the molding material around the core inside the mold in the first cavity and the second cavity to form a body and at least one annular sleeve of the component. The method is characterized by providing a core having at least one recess allowing the molding material to flow through, connecting the first cavity and the second cavity, and forming at least one first connection and at least one second connection between the body and the at least one annular sleeve. The method also includes: removing at least one core from at least a portion of the hollow portion in the mold. Therefore, the present disclosure provides a simple, efficient and user-friendly molding assembly that allows simultaneous and trouble-free manufacturing of multi-piece components.

[0008] According to an embodiment of the present invention, forming the connection portion includes: forming a main body and at least one annular sleeve, so that the connection portion is enclosed (specifically completely enclosed) between the main body and the at least one annular sleeve. Therefore, by arranging the connection portion between the main body and the annular sleeve, the connection portion and the formed fracture surface can be hidden from the user's field of vision.

[0009] According to an embodiment of the present invention, at least one core for forming a free space in a component is arranged inside the mold, comprising: a first core for forming at least one first free space in the component and a second core for forming at least one second free space in the component are arranged inside the mold, wherein at least one first connection (preferably all first connections) is disconnected when the first core is taken out of the mold, and wherein at least one second connection (preferably all second connections) is disconnected when the second core is taken out of the mold. In this way, different additional components can be formed integrally with the main body. In this way, two main bodies with corresponding annular sleeves can also be produced. Therefore, a very efficient production method is provided.

[0010] According to an embodiment of the present invention, the direction along which the first core is removed is substantially different from the direction along which the second core is removed, and in particular, the direction along which the first core is removed is opposite to the direction along which the second core is removed.

[0011] In this way, a smaller take-out distance of the individual cores is not required, whereby the risk of moulding defects can be reduced.

[0012] According to an embodiment of the present invention, at least one core comprises at least one core body and at least one arm (specifically two arms) attached to the core body, so that the molding material can solidify in the first cavity and / or the second cavity around the core body inside the mold to form the body, and the molding material can solidify in the free space around one or more arms inside the mold to form the annular sleeve. In this way, complex geometric shapes of the components can be achieved, suitable for separating the body and the annular sleeve by removing the core.

[0013] According to an embodiment of the present invention, at least one core includes at least one core body and at least one arm (specifically two arms) separated from the core body and movable relative to the core body, so that the molding material can solidify in the first cavity and / or the second cavity around the core body inside the mold to form a body, and the molding material can solidify in the free space around one or more arms inside the mold to form an annular sleeve. This embodiment can be advantageous in the case where the geometry of the component does not provide sufficient support for the mold when the core is moved. In addition, this embodiment can provide additional degrees of freedom for forming the geometry, for example, when the core body and the arm are taken out in different directions (specifically in non-parallel directions).

[0014] According to an embodiment of the present invention, removing the core from the mold comprises: removing at least one core body and at least one arm at the same time by moving relative to the mold, so that at least one first connection part and at least one second connection part are disconnected,

[0015] or

[0016] Wherein, removing the core from the mold comprises: before or after removing the core body from the mold, removing at least one arm at least partially from the mold by moving at least one arm relative to the core body, so that at least one first connection portion and at least the second connection portion are disconnected,

[0017] or

[0018] The core is removed from the mold by rotating at least one arm relative to the mold to disconnect at least one first connection and at least one second connection. Thus, the disconnection of the connection can be achieved in a manner adapted to the geometry of the component.

[0019] According to an embodiment of the present invention, one or more arm portions comprise at least one recess, preferably wherein each arm portion comprises at least one recess, so that the molding material can solidify in the recess to form one or more connecting portions,

[0020] and / or

[0021] Therein, at least one arm is configured as a sleeve element comprising a recess in the form of an opening. In this way, a connection can be formed in a very efficient manner at a desired location. According to an embodiment of the invention, the component is a connecting element. The component can be any two-piece component, such as a hose connector, a quick connector, etc.

[0022] According to an embodiment of the invention, the method comprises: forming a connection with the component between the outer surface of the body and the inner surface of at least one annular sleeve. This provides improved aesthetics and functionality to the component, even after the component is used for the first time and the connection is broken.

[0023] According to an embodiment of the present invention, a component is provided, specifically a connecting element. The connecting element can be manufactured according to the method claimed. The connecting element includes a main body. The connecting element includes at least one annular sleeve. At least one annular sleeve and the main body can rotate relative to each other. The main body and the at least one annular sleeve are manufactured together to be integrally molded as one component during the manufacturing process of forming at least one connecting portion between the main body and the at least one annular sleeve. The connecting element is characterized in that the main body and the at least one annular sleeve enclose a fracture site formed due to the disconnection of at least one connecting portion. In addition, the fracture site can be formed by disconnecting the connecting portion when the annular sleeve is rotated around the main body. This action can be performed before the product (i.e., the connecting element) is available to the user, and any undesirable and accidental disconnection is avoided during the user's first use of the product.

[0024] According to an embodiment of the invention, at least one connection is formed between the outer surface of the body and the inner surface of the at least one annular sleeve, so that the fracture site is enclosed by the body and the at least one annular sleeve, in particular in such a way that the fracture site is not visible from the outside of the component. Thus, the component can be produced in one molding process, but the formed fracture site is hidden from the user's view, thus giving the component a favorable appearance.

[0025] According to an embodiment of the present invention, the molding material of the main body or the molding material of at least one annular sleeve is different from the molding material of the connecting part, specifically, when the molding material is in a solidified state, the connecting part with the molding material is easier to break than the main body or at least one annular sleeve with the molding material. Therefore, the breakability of the connecting part can be positively influenced. Specifically, the main body can be made of one specific molding material and the annular sleeve can be made of another specific molding material, wherein the connecting part is made of the molding material of the main body or of the molding material of the annular sleeve.

[0026] According to an embodiment of the present invention, the fracture site is formed by disconnecting the connection part by removing at least one core from at least a portion of the hollow part in the mold. This ensures that the fracture site is formed by disconnecting the connection part based on the removal of at least one core, thereby making the manufacture of the component efficient and simple.

[0027] Other features and aspects of the present invention will be apparent from the following description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The invention will be described in more detail with reference to the accompanying drawings, in which:

[0029] Figure 1 A molded assembly according to an aspect of the present disclosure is shown;

[0030] Figure 2 shows a cross-sectional illustration of a component having a connection according to an aspect of the present disclosure, wherein the component is made from a molded assembly;

[0031] Figure 3 A cross-sectional illustration of a component after a connection is severed or a fracture site is formed according to an aspect of the present disclosure; and

[0032] Figure 4 A flow chart of a method of manufacturing a component by molding an assembly according to an aspect of the present disclosure is shown. DETAILED DESCRIPTION

[0033] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the present invention incorporating one or more aspects of the present invention are shown. However, the present invention may be embodied in a number of different forms and should not be construed as being limited to the embodiments set forth herein, which are instead provided to make this disclosure comprehensive and complete and to fully convey the scope of the present invention to those skilled in the art. For example, one or more aspects of the present invention may be used in other embodiments, and even in other types of structures and / or methods. In the accompanying drawings, the same reference numerals represent the same elements.

[0034] Certain terms are used herein for convenience only and should not be considered as limiting the present invention. For example, "upper", "lower", "front", "rear", "side", "longitudinal", "lateral", "transverse", "upward", "downward", "forward", "backward", "lateral", "left", "right", "horizontal", "vertical", "up", "inside", "outside", "inward", "outward", "top", "bottom", "higher", "above", "below", "central", "middle", "centered", "between", "end", "adjacent", "near", "close", "distal", "remote", "radial", "circumferential", etc. only describe the configurations shown in the drawings. In fact, components can be oriented in any direction, and therefore, unless otherwise specified, these terms should be understood to include such variations.

[0035] Figure 1 A molding assembly 100 is shown. The molding assembly 100 includes a mold 102. The mold 102 may be a hollow portion 102. The molding assembly 100 also includes a movable side 103 and an ejection system 105, which are applied during casting and ejection of the casting by the molding assembly 100. The molding assembly 100 also includes a fixed side 107. In addition, the molding assembly 100 includes a gate and runner system 113 and an inlet 115. The inlet 115 is adapted to allow a molding material 117 to enter the mold 102. In addition, the molding assembly 100 includes a core side 109 and a cavity side 111, as shown in the accompanying drawings. In some embodiments, the molding process may be any of bench molding, floor molding, pit molding, and machine molding. Furthermore, the molding process may use any molding material, such as, but not necessarily, a green sand mold, a dry sand mold, a surface drying mold, a core sand mold, a clay mold, a shell mold, a carbon dioxide mold, a cement sand mold, a plaster mold, a metal mold, a clay mold, etc. The mold 102 may be any type of mold that instantly and perfectly forms any part or provides any other desired advantage or property.

[0036] The molding assembly 100 includes a core for forming free spaces 104, 106. During the implementation of the present disclosure, the core is arranged in the free spaces 104, 106, and therefore, for the purpose of description and understanding, the present disclosure may interchangeably refer to the core as a "core", which is obvious to those with relevant knowledge in the art. The core is suitable for being arranged in the mold 102 (such as Figure 1 The mold 102 is also included in the present disclosure. Figure 2 The core shown in FIG. 1 is referenced to free spaces 104, 106. The present disclosure allows molding of a component 124 (e.g., Figure 2 The present disclosure is proposed Figure 2 , Figure 3 124 in the figure respectively shows the position and function of the core with two arms. In addition, the arms respectively have recesses (alternatively openings). The recesses of the present disclosure allow multiple parts to be cast simultaneously without the need for separate castings, molds to obtain separate parts, as further described.

[0037] In some embodiments, the core can be of any type, such as a cylindrical core, a balanced core, or a dovetail core. The core can be a wet sand core or a dry sand core. The core can also be a metal core. In addition, the metal core can be made of cast iron or steel. The use of a sand core can enable a freer choice of materials, such as bentonite clay, coal powder, resin oil, or any other material known or used in the art.

[0038] In some embodiments, the cores can be held together by a clamp (not shown). Additionally or alternatively, the cores can be coupled together by easily removable screws. The cores can be coupled together in the following manner: one of the cores can have a protrusion and the other of the cores can have some grooves to securely hold the protrusion. The cores can have a higher fire resistance to withstand the high temperature of the molding material 117.

[0039] When arranged in the mold 102, the core is suitable for hollowing the hollow portion 102 (see Figure 1 ) is divided into a main body 116 (alternatively, hereinafter referred to as a first cavity) and an annular sleeve 118 (alternatively, hereinafter referred to as a second cavity). For the purpose of illustration and understanding, the main body 116 and the annular sleeve 118 are referred to as the first cavity and the second cavity. During actual implementation, the main body 116 and the annular sleeve 118 are formed based on pouring a molding material (e.g., molding material 117) into the first cavity and the second cavity and solidifying the molding material. The molding material 117 is poured into the mold 102 of the molding assembly 100 through the inlet 115. The molding material 117 solidifies around the core inside the mold 102 to form a molded part such as Figure 2The present disclosure shows the component 124 as a connecting element 124, and the two terms are used interchangeably hereinafter. The component 124 has connecting portions 130, 132, 134, 136.

[0040] During the molding process, the arms of the core form free spaces 142, 144, 146, 148 or cavities between the body 116 and the annular sleeve 118. Since the core and its corresponding arms are integrally connected, the free spaces 142, 144 are connected to the free space 104, wherein the free spaces 146, 148 are connected to the free space 106. After the molding material is cured, the core and its corresponding arms can be removed from their positions within the cured part 124, so that the free spaces 104, 106 and the free spaces 142, 144, 146, 148 remain in the part 124. It should be noted that the arms of the core and all other parts of the core can be arranged in a form that can be removed from their positions within the cured part 124.

[0041] In order to form the connection parts 130, 132, 134, 136 between the body 116 and the annular sleeve 118, a recess is provided in the arm part of the core. During casting, the molding material 117 solidifies around the arm part (which is part of the core) inside the mold 102 and also flows and solidifies in the recess of the arm part, thereby forming the connection parts 130, 132, 134, 136.

[0042] The connecting element 124 includes a body 116 having a first side 120 and a second side 122. The second side 122 is opposite to the first side 120. The connecting element 124 includes at least one annular sleeve 118. The present disclosure shows two annular sleeves 118, but actual implementations may have annular sleeves of any number, type, size, and position. At least one annular sleeve 118 and the body 116 can rotate relative to each other.

[0043] like Figure 2 As shown in , the molding material 117 fills the first cavity. Herein, the first cavity corresponds to the body of the component 124. In addition, the material 122 in the first cavity is referred to as the first cavity material 126. The molding material 117 reaches the second cavity after passing through the recesses 108, 110, 112, 114. In addition, the second cavity corresponds to the sleeve of the component 124. In addition, the material 122 in the second cavity is referred to as the second cavity material 128. The molding material 117 forms a connection 130, 132, 134, 136 between the first cavity and the second cavity of the component 124.

[0044] In some embodiments, the molding material 117 may be in the form of metal, plastic, glass, polymer, etc. The molding material 117 may be selected from any metal such as aluminum, magnesium, copper alloys, tin, zinc, lead alloys, iron, steel, or any other material used or known in the art.

[0045] Figure 3 The component 124 is shown after the connection 130, 132, 134, 136 between the first cavity and the second cavity is disconnected. The connection is disconnected when the core (interchangeably referred to as the free space 104, 106) is removed after the molding material solidifies around the core. The connection 130, 132 can be disconnected when the core is removed from the mold 102. Similarly, the connection 134, 136 can be disconnected when the core 106 is removed outside the mold 102. In short, any known technique, sequence, and components can be applied to disconnect the connection 130, 132, 134, 136 so that the deformation or damage associated with the final form of the first cavity and the second cavity is minimal or absent. The complete component 124 is formed of separate parts, wherein the body 116 (of the first cavity) and the at least one annular sleeve 118 (of the second cavity) are separated (spatially) from each other, as shown.

[0046] In some embodiments, the connecting element 124 enables the main body 116 and the at least one annular sleeve 118 to be manufactured together so as to be integrally molded as one part during the manufacturing process of forming the connecting portions 130, 132, 134, 136. The break locations 130', 130" (e.g., flush) on each of the first side 120 and the second side 122 of the main body 116 are formed by at least one annular sleeve 118 arranged on the main body by breaking the connecting portions 130, 132, 134, 136. In some embodiments, during the breaking of the connecting portions 130, 132, 134, 136, the formed break locations 130', 130" may undergo slight changes in shape, size, etc.

[0047] like Figure 3As shown in , the present disclosure provides a component 124, specifically a connecting element. Component 124 includes a main body 116 and at least one annular sleeve 118. At least one annular sleeve 118 and the main body 116 can rotate relative to each other. The main body 116 and the at least one annular sleeve 118 are manufactured together to be integrally molded as one component during the manufacturing process of forming the connecting parts 130, 132, 134, 136. The feature of component 124 is that the main body 116 and the at least one annular sleeve 118 enclose the fractured parts 130', 130". Such encapsulation of the fractured parts 130', 130" formed due to the disconnection of the connecting parts 130, 132, 134, 136 makes the application of component 124 simple, beautiful and efficient. In addition, the application of component 124 is beautiful and efficient. Furthermore, the breakout locations 130 ′, 130 ″ are shielded within at least one annular sleeve 118 to make application of the component 124 trouble-free, clean, and user-friendly.

[0048] In some embodiments, the fracture sites 130', 130" are formed by disconnecting the connections 108, 110, 112, 114 by removing at least one core from at least a portion of the hollow portion H within the mold 102. This ensures that the fracture sites 130', 130" formed by disconnecting the connections 108, 110, 112, 114 are easily formed when at least one core is removed, thereby achieving efficient and simple manufacturing of the component 124.

[0049] In some embodiments, the molding material 117 may be the same or different for both the first cavity and the second cavity. In addition, different inlets may be provided in order to provide different molding materials to both the first cavity and the second cavity.

[0050] In some embodiments, the molding material 117 present in the recesses 108, 110, 112, 114 may have the same properties as the molding material present in the first and second cavities. Alternatively, the molding material 117 may have different properties when the recesses 108, 110, 112, 114 are provided with some other access. It is obvious that having the molding material 117 for the recesses 108, 110, 112, 114 have different properties may have the following advantages: the recesses 108, 110, 112, 114 are easier to break during the removal of the core.

[0051] In some embodiments, the present disclosure can be implemented with only a single core (not shown) in the first cavity. A single core can include a desired number of arms with recesses. In addition, the present disclosure can be implemented with two or more cores, depending on the need to cast different component parts, and all of these variations are within the scope of the present disclosure.

[0052] In some embodiments, the component 124 may be a garden connector manufactured with a body (ie, the body 116) and a sleeve (ie, the annular sleeve 118 or a container with a lid, etc.). The component 124 may have multiple pieces.

[0053] In some embodiments, the core can be removed manually. Some basic tools (such as pliers, forging tools, tweezers, etc.) may be needed to remove the core from the mold 102. The core can have a high degree of disintegration so that they can quickly disintegrate after the molding material 117 is cured. In some embodiments, the component 124 can have multiple separated parts (e.g., a first cavity and a second cavity) by removing the core with recesses 108, 110, 112 and 114 and / or the first cavity and the second cavity. Since the different parts of the component 124 are formed together without the need for separate casting, the core with recesses 108, 110, 112, 114 will make cost efficiency and productivity higher.

[0054] In some embodiments, the recesses 108, 110, 112, 114 may be formed during manufacturing by applying a core (shown as free spaces 104, 106). During manufacturing of the core some solid material may be inserted to obtain the desired recesses 108, 110, 112, 114.

[0055] In some embodiments, the core and / or the first cavity and the second cavity can form a hollow portion in the form of an internal cavity when molded. The core and / or the first cavity and the second cavity can have enough permeability to allow gas to escape easily during casting and curing. The core can be used to improve any surface features (such as finish, texture, quality, etc.) of parts 124. The core can provide external undercut features when molded. The core can be inserted to realize a deeper recess when molded.

[0056] like Figure 4As shown in , the present disclosure can be implemented via a method 150 of manufacturing a component 124 by molding an assembly 100. In step 152, the method 150 includes providing a mold 102 having an inlet 115 and defining a hollow portion H. In addition, in step 154, the method includes arranging at least one core for forming a free space within the component 124 inside the mold 102 to divide the hollow portion "H" into a first cavity and a second cavity. In step 156, the method 150 also includes pouring a molding material 117 into the mold 102 through the inlet 115. In step 158, the method 150 then includes solidifying the molding material 117 around the core inside the mold 102 in the first cavity and the second cavity to form a body 116 and at least one annular sleeve 118 within the component 124. The method is characterized in that, in step 160, the method includes: providing a core having at least one recess that allows the molding material 117 to flow through, connecting the first cavity and the second cavity, and forming the connection 108, 110, 112, 114 with the component 124. The body 116 and at least one annular sleeve 118 enclose the connection 108, 110, 112, 114 formed with the component 124 between them. The method also includes a step 162 in which at least one core is removed from at least a portion of the hollow portion H in the mold 102. This removal of the core allows the connection 130, 132, 134, 136 to be at least partially disconnected when the component 124 is used for the first time. Since the connections 130, 132, 134, 136 are easily removed or the break locations 130', 130" are provided after manufacturing, the present disclosure provides a breakage-free and trouble-free experience to the user. In this way, the product (i.e., component 124) can be provided to the user without the user undesirably "breaking" the component 124 before first use. Therefore, the present disclosure can avoid any undesirable and accidental disconnection during the user's first use of the product.

[0057] In some embodiments, the method includes forming a connection 108, 110, 112, 114 between the outer surface 140 of the body 116 and the inner surface 138 of the at least one annular sleeve 118 with the component 124. This provides improved aesthetics and functionality to the component 124, even after the component 124 is used for the first time and the connection 108, 110, 112, 114 is disconnected.

[0058] In the drawings and specification, preferred embodiments and examples of the present invention have been disclosed, and although specific terms are employed, they are used in a generic and descriptive sense only and not for the purpose of limiting the scope of the invention as set forth in the appended claims.

[0059] Components List

[0060] 100 Molded components

[0061] 102 Mould

[0062] 103 Active side

[0063] 104 Free Space

[0064] 105 Exhaust system

[0065] 106 Free Space

[0066] 107 Fixed side

[0067] 108 recess

[0068] 109 Core side

[0069] 110 recess

[0070] 111 Cavity side

[0071] 112 recess

[0072] 113 Gate and runner system

[0073] 114 recess

[0074] 115 Entrance

[0075] 116 Main Body

[0076] 117 Molding material

[0077] 118 Annular sleeve

[0078] 120 First side

[0079] 122 Second side

[0080] 124 Components / connecting elements

[0081] 126 First cavity material

[0082] 128 Second cavity material

[0083] 130 Connection

[0084] 130' fracture site

[0085] 130” fracture site

[0086] 132 Connection

[0087] 134 Connection

[0088] 136 Connection

[0089] 138 Inner surface

[0090] 140 External surface

[0091] 142 Arm

[0092] 144 Arm

[0093] 146 Arm

[0094] 148 Arm

[0095] 150 Methods

[0096] 152 Steps

[0097] 154 Steps

[0098] 156 Steps

[0099] 158 Steps

[0100] 160 Steps

[0101] 162 Steps

[0102] H Hollow part

Claims

1. A method of manufacturing a component (124) having a body (116) and at least one annular sleeve (118) by molding an assembly (100), the method comprising: providing a mold (102) having an inlet (115) and defining a hollow portion (H); Arranging at least one core for forming a free space (104, 106) in the component (124) inside the mold (102) so as to divide the hollow portion (H) into a first cavity and a second cavity; pouring a molding material (117) into the mold (102) through the inlet (115); Solidifying the molding material (117) around the core in the first cavity and the second cavity inside the mold (102) to form the body (116) and at least one annular sleeve (118) of the component (124); The first cavity and the second cavity are connected and at least one first connection portion (130, 132) and at least one second connection portion (134, 136) are formed between the main body (116) and at least one annular sleeve (118); and removing at least one of the cores from at least a portion of the hollow portion (H) within the mold (102); Features: Providing the core with at least one recess allowing the molding material (117) to flow therethrough, so that at least one of the first connections (130, 132) is disconnected when the core is removed from the mold (102), and at least one of the second connections (134, 136) is disconnected when the core is removed outside the mold (102).

2. The method according to claim 1, wherein: Forming the first connection part (130, 132) and the second connection part (134, 136) includes: forming the body (116) and at least one annular sleeve (118) so that the first connection part (130, 132) and the second connection part (134, 136) are enclosed between the body (116) and the at least one annular sleeve (118).

3. The method according to claim 1 or 2, wherein: At least one core arranged inside the mold (102) for forming a free space (104, 106) within the component (124) comprises: a first core arranged inside the mold (102) for forming at least one first free space (104) within the component (124) and a second core for forming at least one second free space (106) within the component, wherein at least one of the first connecting parts (130, 132) is disconnected when the first core is removed from the mold (102), and wherein at least one of the second connecting parts (134, 136) is disconnected after the second core is removed from the mold (102).

4. The method according to claim 3, wherein: The direction along which the first core portion is removed is substantially different from the direction along which the second core portion is removed.

5. The method according to claim 1, wherein: At least one of the cores comprises at least one core body and at least one arm attached to the core body, so that the molding material (117) can solidify in the first cavity and / or the second cavity around the core body inside the mold (102) to form the body (116), and the molding material (117) can solidify in the free space (142, 144, 146, 148) around one or more of the arms inside the mold (102) to form the annular sleeve (118).

6. The method according to claim 1, wherein: At least one of the cores comprises at least one core body and at least one arm separated from the core body and movable relative to the core body, so that the molding material (117) can solidify in the first cavity and / or the second cavity around the core body inside the mold (102) to form the body (116), and the molding material (117) can solidify in the free space (142, 144, 146, 148) around one or more of the arms inside the mold (102) to form the annular sleeve (118).

7. The method according to claim 5 or 6, wherein: Removing the core from the mold (102) comprises: removing at least one of the core bodies and at least one of the arms simultaneously by moving relative to the mold (102) so that at least one of the first connecting parts (130, 132) and at least one of the second connecting parts (134, 136) are disconnected, or Wherein, removing the core from the mold (102) comprises: before or after removing the core body from the mold (102), removing at least one arm at least partially from the mold (102) by moving at least one arm relative to the core body, so that at least one first connection part (130, 132) and at least one second connection part (134, 136) are disconnected, or Wherein, removing the core from the mold (102) comprises: rotating at least one of the arms relative to the mold (102) so that at least one of the first connecting parts (130, 132) and at least one of the second connecting parts (134, 136) are disconnected.

8. The method according to claim 5 or 6, wherein: One or more of the arm portions include at least one recess, so that the molding material (117) can solidify in the recess to form one or more of the first connecting portions (130, 132) and one or more of the second connecting portions (134, 136), and / or Therein, at least one of the arm portions is configured as a sleeve element, which comprises a recess in the form of an opening.

9. The method according to claim 1 or 2, wherein: The component (124) is a connecting element (124).

10. The method according to claim 1 or 2, wherein: The method includes forming the first connection (130, 132) and the second connection (134, 136) with the component (124) between an outer surface (140) of the body (116) and an inner surface (138) of at least one of the annular sleeves (118).

11. The method according to claim 2, wherein: The first connection portion (130, 132) and the second connection portion (134, 136) are completely enclosed between the body (116) and at least one of the annular sleeves (118).

12. The method according to claim 3, wherein: All of the first connecting parts (130, 132) are disconnected when the first core is removed from the mold (102).

13. The method according to claim 3, wherein: All of the second connecting parts (134, 136) are disconnected after the second core part is removed from the mold (102).

14. The method according to claim 4, wherein: The direction along which the first core portion is removed is opposite to the direction along which the second core portion is removed.

15. The method according to claim 5, wherein: The at least one arm portion is two arms portions.

16. The method according to claim 6, wherein: The at least one arm portion is two arms portions.

17. The method according to claim 8, wherein: Each arm portion includes at least one recess.

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