Injection mold and injection molding device
By designing the pressing parts and pressing cavity structures in the injection mold, the problem of the wire being easily extruded and damaged during the mold assembly process is solved, and the effect of improving the quality of injection molded products and reducing production costs is achieved.
Patent Information
- Application Number
- CN202422138114.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-29
AI Technical Summary
During the mold assembly process of existing injection molds, the wires of the heating parts are easily extruded and damaged, resulting in a reduction in the excellent rate of injection molding production and an increase in cost.
An injection mold is designed, including a first mold, a second mold and a pressing member, which is arranged in the pressing cavity, and through the pressing hole and the avoiding gap structure, the conductor is pressed and fixed to prevent it from being removed or damaged by extrusion.
Effectively prevent the wire from being extruded and damaged during the mold assembly process, improve the quality and production efficiency of injection molded products, and reduce production costs.
Smart Images
Figure CN223013774U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of injection molding, and in particular to an injection mold and an injection molding device. Background Art
[0002] In the existing atomization device, if the mounting seat for installing the heating element is formed by in-mold injection molding, since the wire of the heating element is made of metal material with resilience, during the assembly of the upper mold and the lower mold, the wire is easily ejected from the groove formed in the mold cavity of the lower mold, causing the wire to be easily squeezed by the upper mold and the lower mold and flattened into a thin skin or even broken, thereby reducing the yield of injection molding production and increasing the cost of injection molding production. Utility Model Content
[0003] Based on this, it is necessary to provide an injection mold and an injection molding device to solve the problem of how to avoid the wire being damaged by mold extrusion.
[0004] An injection mold, comprising:
[0005] The first mold and the second mold are assembled with each other to define a mold cavity and a pressing cavity, the mold cavity is connected with the pressing cavity, the mold cavity is used to accommodate the heating element, and the pressing cavity can allow the wire of the heating element to pass through;
[0006] A pressing piece is arranged in the pressing cavity and is used to press the wire of the heating element.
[0007] In one of the embodiments, the pressing piece is provided with a pressing hole for the wire to pass through and press the wire.
[0008] In one embodiment, the diameter of the wire is defined as D1, the diameter of the pressed hole is defined as D2, and D1+0.05mm≤D2≤D1+0.3mm.
[0009] In one embodiment, a avoidance notch is provided on the pressing part, the pressing hole and the avoidance notch are arranged along the direction of the mold cavity pointing to the pressing cavity, and the pressing hole is connected to the avoidance notch, and the notch of the avoidance notch faces the first mold.
[0010] In one embodiment, the first mold and the second mold are assembled with each other to define an inlet and outlet, and the inlet and outlet are located on the side of the pressing cavity facing away from the mold cavity and are connected to the pressing cavity. The inlet and outlet are used for entering and exiting the pressed part.
[0011] In one embodiment, the extrusion is a plastic component.
[0012] In one embodiment, the melting point of the plastic component is A, and A≥120°C.
[0013] In one embodiment, limiting grooves are formed on the surfaces of the first mold and the second mold facing each other. The limiting grooves of the first mold and the second mold enclose to form the pressing cavity, and two ends of the pressing member arranged oppositely along the fitting direction of the first mold and the second mold are respectively limited in the limiting grooves of the first mold and the second mold.
[0014] In one embodiment, the first mold and the second mold are fitted together to define a transition cavity, which is communicated between the mold cavity and the pressing cavity, and the transition cavity can allow the wire of the heating element to pass through.
[0015] The above-mentioned injection mold and injection device, the injection mold includes a first mold, a second mold and a pressing member. The first mold and the second mold are fitted together to define a mold cavity and a pressing cavity. The mold cavity is communicated with the pressing cavity. The mold cavity is used to accommodate the heating element, and the pressing cavity can allow the wire of the heating element to pass through. The pressing member is arranged in the pressing cavity and is used to press the wire of the heating element. The pressing member can press the wire, thereby preventing the wire from coming out. In this way, during the subsequent process of fitting the second mold and the first mold together, the situation that the wire is deformed and damaged by being squeezed by the first mold and the second mold can be avoided, thereby improving the quality of the injection-molded product and reducing the production cost. Description of the Drawings
[0016] Figure 1 It is a schematic structural diagram of the injection mold in this application.
[0017] Figure 2 is Figure 1 the schematic cross-sectional structure diagram of
[0018] Figure 3 It is a schematic structural diagram of the first mold, the pressing member, the heating element, the wire and the mounting base in this application.
[0019] Figure 4 is Figure 3 the schematic cross-sectional structure diagram of
[0020] Figure 5 It is a schematic structural diagram of the first mold in this application.
[0021] Figure 6 It is a schematic structural diagram of the pressing member in this application.
[0022] Reference Signs
[0023] 100, injection mold;
[0024] 10, first mold; 11, second mold;
[0025] 12. Mold cavity; 121. Fixed groove; 122. Injection molding groove; 13. Pressing cavity; 131. Limit groove; 14. Inlet and outlet;
[0026] 15. Pressing part; 151. Pressing hole; 152. Relief notch; 153. Hollow groove;
[0027] 16. Transition cavity; 161. Transition groove;
[0028] 200. Heating element; 210. Heating main body; 220. Conducting wire; 300. Mounting seat. Detailed implementation manners
[0029] To make the above objects, features, and advantages of the present application more obvious and understandable, the following describes the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.
[0030] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.
[0031] In addition, if these terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0032] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0033] In this application, unless otherwise clearly defined and limited, if there is a description such as the first feature being "on" or "under" the second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.
[0034] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.
[0035] The embodiment of this application provides an injection molding device. The injection molding device includes an injection mold 100. The injection molding device is used in the technical field of injection molding. For example, the injection molding device is used to injection mold a mounting seat 300 that is disposed around a heating element 200 and is used to mount the heating element 200.
[0036] As an example, the heating element 200 can be applied in an atomizing device and is used to heat an aerosol generating matrix to generate an aerosol. Of course, the heating element 200 can also be used in other fields, which are not specifically limited here. The heating element 200 includes a connected heating body 210 and a wire 220. The heating element 200 is connected to a power source to enable the power source to supply power to the heating element 200.
[0037] Please refer to Figures 1 to 5, the injection mold 100 includes a first mold 10, a second mold 11, and a pressing member 15. The first mold 10 and the second mold 11 are assembled together and define a mold cavity 12 and a pressing cavity 13. The mold cavity 12 communicates with the pressing cavity 13. The mold cavity 12 is used to accommodate the heating element 200, and the pressing cavity 13 can allow the wire 220 of the heating element 200 to pass through. The pressing member 15 is disposed in the pressing cavity 13 and is used to press the wire 220 of the heating element 200.
[0038] Specifically, the mutually facing surfaces of the first mold 10 and the second mold 11 are each provided with a mold groove, a transition groove 161, and a limiting groove 131 arranged in sequence. The mold groove includes a fixed groove 121 and an injection groove 122 that communicate with each other. In the same first mold 10 or second mold 11, the fixed groove 121, the injection groove 122, the transition groove 161, and the limiting groove 131 communicate with each other in sequence.
[0039] When the first mold 10 and the second mold 11 are assembled together, the fixed grooves 121 of the first mold 10 and the second mold 11 correspondingly enclose a fixed cavity, and the injection grooves 122 of the first mold 10 and the second mold 11 correspondingly enclose an injection cavity. The fixed cavity and the injection cavity are combined to form the mold cavity 12; the transition grooves 161 of the first mold 10 and the second mold 11 correspondingly enclose a transition cavity 16, and the limiting grooves 131 of the first mold 10 and the second mold 11 correspondingly enclose a pressing cavity 13. The transition cavity 16 communicates between the mold cavity 12 and the pressing cavity 13.
[0040] A part of the heating body 210 is placed in the fixed cavity, and the part of the heating element 200 where the heating body 210 is connected to the wire 220 is placed in the injection cavity. An installation seat 300 is formed by injection molding in the injection cavity. The wire 220 passes through the transition cavity 16 and the pressing cavity 13 in sequence. The pressing member 15 is located in the pressing cavity 13, and the two ends of the pressing member 15 arranged oppositely along the assembling direction of the first mold 10 and the second mold 11 are respectively limited in the limiting grooves 131 that enclose the first mold 10 and the second mold 11.
[0041] It is worth mentioning that the pressing member 15 is located in the pressing cavity 13, and the groove walls of the limiting grooves 131 can all be attached to the pressing member 15 to play a role in limiting the pressing member 15. In this way, stable assembly of the pressing member 15 in the pressing cavity 13 can be achieved, and further, stable assembly of the wire 220 can be ensured to facilitate subsequent injection molding operations.
[0042] Please refer to Figure 4 and Figure 5 , during actual assembly, first, the heating element 200 and the pressing member 15 are sequentially assembled on the first mold 10, and then, the second mold 11 is assembled with the first mold 10 to realize the installation of the heating element 200 and the pressing member 15. Finally, the injection molding material is injected into the injection cavity to form the installation seat 300.
[0043] In the present application, the pressing member 15 is disposed in the pressing cavity 13 to press the wire 220 by the pressing member 15, thereby preventing the wire 220 from coming out. Thus, during the subsequent process of fitting the second mold 11 with the first mold 10, the situation that the wire 220 is deformed and damaged by being squeezed by the first mold 10 and the second mold 11 can be avoided, thereby improving the quality of the injection-molded product and reducing the production cost.
[0044] In some embodiments, please refer to Figure 2 and Figure 6 , a pressing hole 151 for the wire 220 to pass through and press the wire 220 is formed in the pressing member 15.
[0045] It can be understood that before assembling the heating element 200 on the first mold 10, the wire 220 needs to pass through the pressing hole 151 of the pressing member 15, and then the heating main body 210 and the wire 220 are correspondingly assembled into the mold groove, the transition groove 161 and the limiting groove 131 of the first mold 10. At the same time, the pressing member 15 is also correspondingly assembled into the limiting groove 131. Thus, the hole wall of the pressing hole 151 surrounds the outer peripheral side of the wire 220 to play a pressing role on the wire 220, thereby effectively restricting the movement and rebound of the wire 220 to prevent the wire 220 from coming out of the transition groove 161. During the subsequent process of fitting the second mold 11 with the first mold 10, the situation that the wire 220 is deformed and damaged by being squeezed by the second mold 11 can be avoided, thereby improving the quality of the injection-molded product and reducing the production cost.
[0046] It can be understood that in the present application, the diameter of the wire 220 is defined as D1, and the aperture of the pressing hole 151 is defined as D2. The aperture D2 of the pressing hole 151 needs to be larger than the diameter of the wire 220. Thus, it is convenient for the user to pass the wire 220 through the pressing hole 151, and the situation that the wire 220 cannot be inserted into the pressing hole 151 due to the too small aperture D2 of the pressing hole 151 or the wire 220 is damaged due to the friction between the wire 220 and the hole wall of the pressing hole 151 can be avoided.
[0047] The specific dimensional relationship between the aperture D2 of the pressing hole 151 and the diameter D1 of the wire 220 is not limited. In some embodiments, D1 + 0.05 mm ≤ D2 ≤ D1 + 0.3 mm.
[0048] It can be understood that when the aperture D2 of the pressing hole 151 is greater than the diameter D1 of the wire 220 within the range of 0.05 mm to 0.3 mm, the pressing hole 151 can play a good pressing and limiting role on the wire 220 to effectively restrict the movement and rebound of the wire 220, realize the fixation of the wire 220, and also facilitate the user to pass the wire 220 through the pressing hole 151.
[0049] It should be noted that the specific dimensional relationship between the aperture D2 of the pressing hole 151 and the diameter D1 of the wire 220 is obtained through experimental tests. The parameters, steps, etc. related to the experimental tests on the specific dimensional relationship between the aperture D2 of the pressing hole 151 and the diameter D1 of the wire 220 are all conventional techniques for those skilled in the art, and will not be elaborated here.
[0050] In some embodiments, please refer to Figure 2 and Figure 6 , a relief notch 152 is formed in the pressing member 15. The pressing hole 151 and the relief notch 152 are arranged along the direction from the mold cavity 12 to the pressing cavity 13, and the pressing hole 151 communicates with the relief notch 152. The notch of the relief notch 152 faces the first mold 10.
[0051] It can be understood that, along the direction from the mold cavity 12 to the pressing cavity 13, the sum of the length of the relief notch 152 and the length of the pressing hole 151 is equal to the length of the pressing member 15. That is to say, the setting of the relief notch 152 can effectively adjust the length of the pressing hole 151 to a suitable length, so that the end of the wire 220 can pass through the pressing hole 151 more quickly, thereby facilitating the user to observe the situation of the wire 220 passing through the pressing hole 151, and being beneficial for the user to adjust the angle and force of the user to control the wire 220 passing through the pressing hole 151 according to the observed situation, avoiding friction damage between the wire 220 and the hole wall of the pressing hole 151, and the operation is simple, which is beneficial to improving the assembly efficiency.
[0052] In some embodiments, please refer to Figure 1 and Figure 2 , the first mold 10 and the second mold 11 are mutually combined and define an inlet / outlet 14. The inlet / outlet 14 is located on the side of the pressing cavity 13 facing away from the mold cavity 12 and communicates with the pressing cavity 13. The inlet / outlet 14 is used for the entry and exit of the pressing member 15. It can be understood that the inlet / outlet 14 can allow the wire 220 to pass through, and is convenient for the disassembly and assembly of the pressing member 15, with convenient operation, which is beneficial to improving the user experience.
[0053] In some embodiments, please refer to Figure 6 , the pressing member 15 is a plastic component, such as: phenolic resin, polystyrene, etc. It can be understood that the plastic component has a low production cost, and has the characteristics of small density and light self-weight. The plastic component can facilitate the user to carry and use, and is beneficial to cost saving.
[0054] In some embodiments, please refer to Figure 6, the melting point of the plastic component is A, and A ≥ 120°C. It can be understood that the injection temperature of the mounting base 300 is less than 120°C. In this application, a plastic component with a melting point A not less than 120°C is used, which can avoid scalding users when disassembling the plastic component after the injection of the mounting base 300, and is beneficial to improving the safety guarantee of the product.
[0055] In some embodiments, please refer to Figure 1 and Figure 2 , both ends of the pressing member 15 arranged oppositely along the splicing direction of the first mold 10 and the second mold 11 are respectively limited in the limiting groove 131 and the second limiting groove 111. It can be understood that the groove walls of the limiting groove 131 and the second limiting groove 111 can both fit with the pressing member 15 to limit the pressing member 15. In this way, the stable assembly of the pressing member 15 in the pressing cavity 13 can be realized, and then the stable assembly of the wire 220 can be ensured to facilitate the subsequent injection operation.
[0056] In some embodiments, please refer to Figure 1 and Figure 6 , a plurality of hollow grooves 153 are further formed on the pressing member 15. It can be understood that a plurality of hollow grooves 153 can be formed on the surface or inside of the pressing member 15 to reduce the weight of the pressing member 15, facilitate the user to carry and use, and can reduce the production materials of the pressing member 15, which is beneficial to cost saving.
[0057] The specific layout method and quantity of the hollow grooves 153 are not limited. Specifically, in this application, the hollow grooves 153 are respectively formed on both sides of the pressing member 15 along the direction perpendicular to the mold cavity 12 and pointing to the pressing cavity 13, and the hollow grooves 153 extend along the direction from the mold cavity 12 to the pressing cavity 13.
[0058] For the above injection mold 100 and injection device, the first mold 10 and the second mold 11 are spliced with each other to define and form a mold cavity 12 and a pressing cavity 13. The mold cavity 12 is communicated with the pressing cavity 13. The mold cavity 12 is used to accommodate the heating element 200, and the pressing cavity 13 can allow the wire 220 of the heating element 200 to pass through. The pressing member 15 is arranged in the pressing cavity 13. Therefore, after the heating element 200 and the wire 220 are assembled in the mold groove of the first mold 10, the pressing member 15 can press the wire 220 to prevent the wire 220 from coming out of the mold groove of the first mold 10. In this way, during the subsequent process of splicing the second mold 11 with the first mold 10, the situation that the wire 220 is deformed and damaged by being squeezed by the first mold 10 and the second mold 11 can be avoided, thereby improving the product quality of injection molding and reducing the production cost.
[0059] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0060] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.
Claims
1. An injection mold, characterized in that: include: The first mold and the second mold are assembled with each other to define a mold cavity and a pressing cavity, the mold cavity is connected with the pressing cavity, the mold cavity is used to accommodate the heating element, and the pressing cavity can allow the wire of the heating element to pass through; A pressing piece is arranged in the pressing cavity and is used to press the wire of the heating element.
2. The injection mold according to claim 1, characterized in that: The pressing piece is provided with a pressing hole for the wire to pass through and press the wire.
3. The injection mold according to claim 2, characterized in that: The diameter of the wire is defined as D1, the diameter of the pressed hole is defined as D2, and D1+0.05mm≤D2≤D1+0.3mm.
4. The injection mold according to claim 2, characterized in that: The pressing part is provided with an avoidance notch, the pressing hole and the avoidance notch are arranged along the direction of the mold cavity pointing to the pressing cavity, and the pressing hole is connected with the avoidance notch, and the notch of the avoidance notch faces the first mold.
5. The injection mold according to claim 1, characterized in that: The first mold and the second mold are assembled with each other to define an inlet and outlet, which are located on the side of the pressing cavity facing away from the mold cavity and are connected to the pressing cavity. The inlet and outlet are used for entering and exiting the pressed part.
6. The injection mold according to claim 1, characterized in that: The pressed part is a plastic component.
7. The injection mold according to claim 6, characterized in that: The melting point of the plastic component is A, where A≥120°C.
8. The injection mold according to claim 1, characterized in that: The surfaces of the first mold and the second mold facing each other are both provided with limiting grooves, the limiting grooves of the first mold and the second mold enclose the pressing cavity, and the two ends of the pressing part which are relatively arranged along the splicing direction of the first mold and the second mold are respectively limited in the limiting grooves of the first mold and the second mold.
9. The injection mold according to claim 1, characterized in that: The first mold and the second mold are assembled together to define a transition cavity, and the transition cavity is connected between the mold cavity and the pressing cavity. The transition cavity can allow the wires of the heating element to pass through.
10. An injection molding device, characterized in that: It comprises the injection mold as described in any one of claims 1 to 9, wherein the injection mold is used for injection molding to form a mounting seat for mounting a heating element.