Air conditioner water pan injection mold

Abstract

The utility model discloses an air conditioner water pan injection mold, including movable die subassembly, movable die subassembly includes: movable die plate, first oblique mechanism, the length direction one side of movable die plate is arranged obliquely, is used for forming the first oblique structure of reverse buckle on water pan plastic piece, second oblique mechanism, it is relative to set with first oblique mechanism collinear, is used for forming the second oblique structure of reverse buckle on water pan plastic piece, elastic core pulling mechanism, slide installation is in second oblique mechanism, is used for forming the connecting column structure of the through -hole of being located second oblique structure of reverse buckle bottom and having, a pair of lateral core pulling mechanism, respectively set up in movable die plate width direction's both sides, is used for forming the lateral structure of reverse buckle on water pan plastic piece. The utility model provides an air conditioner water pan injection mold, through the reasonable setting first oblique mechanism, second oblique mechanism, elastic core pulling mechanism and lateral core pulling mechanism, solve the difficult problem of complex reverse buckle structure forming on water pan plastic piece.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and more specifically, to an injection mold for an air conditioner drain pan. Background Technology

[0002] In existing air conditioning products, the condensate tray, as a key component connecting water collection and structural integrity, is undergoing increasingly complex structural design. For example... Figure 1-2 As shown, to meet the requirements of drainage, overflow prevention, support, and coordination with other components, the water collection pan occupies a large space in both the horizontal and vertical directions, and the overall structure adopts a three-dimensional layout with multiple inclined and interlocking surfaces. Vertical or inclined drainage channels are provided in the horizontal direction to guide condensate out; in the vertical direction, an inclined trough structure with a certain slope is formed to further enhance drainage efficiency and prevent water accumulation.

[0003] In particular, the structure at both ends of the water collection tray is more complex, with a first oblique buckle, a second oblique buckle, and a lateral buckle on each side to achieve a tight fit with the air conditioner housing and component positioning. A connecting post protrudes from the bottom of the second oblique buckle, with a through hole for connection to the air conditioner housing via screws, thus ensuring assembly strength and structural stability. Furthermore, a fan duct mounting base is integrally formed at the bottom of the water collection tray for suspending the fan duct, providing stable support during overall assembly.

[0004] However, the complex structure of the drainage tray posed a significant challenge to the mold design. In particular, the undercut design at both ends increased the mold complexity and manufacturing difficulty, becoming a technical challenge in the structural design. Summary of the Invention

[0005] To address the technical challenges posed by the complex structure of existing air conditioner drain pan plastic parts, including multiple undercuts and connecting pillars, which lead to difficulties in structural design, complex demolding operations, and difficulty in ensuring molding accuracy, this utility model provides an air conditioner drain pan injection mold. By rationally setting a first inclined pulling mechanism, a second inclined pulling mechanism, an elastic core pulling mechanism, and a lateral core pulling mechanism, the problem of difficult molding of complex undercut structures on drain pan plastic parts is solved.

[0006] To achieve the above objectives, this utility model provides an injection mold for molding a plastic part of an air conditioner drain pan, including a moving mold assembly, the moving mold assembly comprising:

[0007] Dynamic template;

[0008] The first oblique pulling mechanism is obliquely arranged on one side of the length direction of the moving template and is used to form the first oblique undercut structure on the water collection tray plastic part;

[0009] The second oblique pulling mechanism is obliquely arranged on the other side of the length direction of the moving template, and is collinear with and opposite to the first oblique pulling mechanism, for forming the second oblique undercut structure on the water collection tray plastic part;

[0010] The elastic core-pulling mechanism is slidably mounted on the second inclined core-pulling mechanism and is used to form a connecting column structure with a through hole located at the bottom of the second inclined inverted structure.

[0011] A pair of lateral core-pulling mechanisms are respectively arranged on both sides of the moving template in the width direction, for forming the lateral undercut structure on the water collection tray plastic part.

[0012] By adopting the above structural scheme, this utility model can accurately complete the forming of undercut structures in multiple directions by setting up oblique core pulling mechanism and lateral core pulling mechanism. At the same time, the connecting column is formed by elastic core pulling structure, avoiding the problem of traditional molds requiring multiple parting or forced demolding under complex structures. It has the beneficial effects of compact structure, high forming accuracy and high demolding efficiency, and effectively solves the problems of complex mold structure and inconvenience of use mentioned in the background technology.

[0013] According to one embodiment of the present invention, the first oblique drawing mechanism includes a first oblique drawing slider and a first oblique drawing cylinder for driving the slider.

[0014] By adopting a hydraulic cylinder drive, the first inclined sliding block can achieve stable core-pulling movement, improving core-pulling accuracy and service life, reducing the frequency of manual adjustments, and enhancing the automation level of the mold.

[0015] According to one embodiment of the present invention, the first inclined sliding block is provided with a wedge groove, and the fixed mold assembly is provided with a wedge block that cooperates with the wedge groove. When the mold is closed, the wedge block is embedded in the wedge groove.

[0016] This wedge-locking structure can position and lock the slider in the mold-closed state, preventing the slider from shifting or deforming under force, and further improving the molding accuracy of the undercut structure.

[0017] According to one embodiment of the present invention, the second oblique drawing mechanism includes a second oblique drawing slider and a second oblique drawing oil cylinder, wherein the oil cylinder is used to drive the slider to move.

[0018] By driving the second inclined sliding block with a hydraulic cylinder, the core-pulling action of the first and second undercut parts can be coordinated synchronously to ensure that the undercut structures on both sides are formed and demolded at the same time, avoiding mold jamming and deformation.

[0019] According to one embodiment of the present invention, the moving template is provided with a slide rail for guiding the second inclined sliding block, and the second inclined sliding block is slidably mounted on the slide rail.

[0020] The slide rail guide structure can limit the movement trajectory of the slider, ensuring smooth and stable core pulling action, reducing slider offset or wear, and improving mold stability and durability.

[0021] According to one embodiment of the present invention, the elastic core-pulling mechanism includes a secondary slider, which is elastically mounted on the second inclined core-pulling slider.

[0022] By setting up a two-stage slider with an elastic structure, the part can automatically adapt to changes in the details of the plastic part during the core pulling process, avoiding deformation and breakage of the connecting column and improving the molding yield.

[0023] According to one embodiment of the present invention, the second inclined slider is provided with a small slide rail, and the secondary slider is slidably installed in the small slide rail.

[0024] By guiding the movement of the secondary slider with a small slide rail, the molding path of the connecting column can be precisely controlled, improving the ability to control the local structural dimensions of the plastic part.

[0025] According to one embodiment of the present invention, the lateral core-pulling mechanism includes a side slider, the side slider having a forming surface for forming the lateral undercut structure.

[0026] The use of independent side sliders to achieve side core pulling effectively solves the problem of difficult demolding of side undercuts, simplifies the mold structure, and ensures product integrity.

[0027] According to one embodiment of the present invention, the side slider is provided with an oblique guide hole, and the fixed mold assembly is provided with an oblique guide post that cooperates with the oblique guide hole, for guiding the side slider to slide during the mold opening and closing process.

[0028] The inclined guide mechanism can realize automatic core pulling and resetting of the side slider without the need for an additional drive device, thereby improving the automation level and mold opening efficiency of the mold.

[0029] According to one embodiment of the present invention, it further includes an inclined top mechanism, which includes an inclined top rod and an inclined top block disposed at its upper end. The inclined top block is used to form the duct fixing seat structure on the water collection tray plastic part.

[0030] The inclined ejector mechanism can assist in smoothly pushing the air duct fixing seat structure out of the mold during the demolding process, improving the demolding quality of this part and preventing jamming or sticking. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a perspective view of the water collection tray plastic part in the embodiment of this utility model.

[0033] Figure 2 This is a schematic diagram of the structure of the water collection tray plastic part in the embodiment of this utility model.

[0034] Figure 3 This is a schematic diagram of the injection mold in an embodiment of the present invention.

[0035] Figure 4 This is a top view of the injection mold in an embodiment of this utility model.

[0036] Figure 5 for Figure 4 A cross-sectional view along line AA in the middle.

[0037] Figure 6 This is an exploded view of the injection mold in an embodiment of this utility model.

[0038] Figure 7 This is a perspective view of the second oblique pulling mechanism in an embodiment of this utility model.

[0039] Figure 8 This is a perspective view of the first inclined pulling mechanism in an embodiment of this utility model.

[0040] Figure 9 This is an exploded view of the lateral core-pulling mechanism on one side of an embodiment of this utility model.

[0041] Figure 10 This is a schematic diagram of the side core-pulling mechanism on the other side in an embodiment of this utility model.

[0042] Figure 11 This is a schematic diagram of the structure of the water collection tray plastic part, the moving mold core, and the inclined top in the embodiment of this utility model.

[0043] Explanation of the labels in the diagram:

[0044] 10. Drainage tray plastic part; 20. Moving mold assembly;

[0045] 11. First oblique undercut; 12. Lateral undercut; 13. Second oblique undercut; 14. Connecting column; 15. Groove; 16. Air duct fixing base;

[0046] 21. Moving mold plate; 22. First inclined core pulling mechanism; 23. Lateral core pulling mechanism; 24. Second inclined core pulling mechanism; 25. Elastic core pulling mechanism; 26. Moving mold core; 27. Inclined ejector mechanism;

[0047] 22a. First inclined sliding block; 22b. First inclined hydraulic cylinder; 22c. Wedge groove;

[0048] 23a. Side slider; 23b. Inclined guide hole;

[0049] 24a. Second inclined sliding block; 24b. Second inclined hydraulic cylinder; 24c. Large slide rail;

[0050] 25a, Secondary slider; 25b, Small slide rail;

[0051] 27a. Angled jack block; 27b. Angled jack rod;

[0052] 31. Wedge block; 32. Inclined guide post. Detailed Implementation

[0053] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Example 1

[0054] The structure of the water collection tray plastic part 10 formed by this utility model is as follows: Figure 1-2 As shown, its two ends are respectively provided with a first oblique buckle 11, a second oblique buckle 13, and a lateral buckle 12, which are used to achieve a tight fit with the air conditioner housing and component positioning. The bottom of the second oblique buckle 13 is provided with an outwardly protruding connecting post 14, which has a through hole for fixing to the housing with screws, ensuring the connection strength and stability between the plastic part and the whole unit. In addition, the bottom of the water collection tray is integrally provided with a fan duct fixing seat 16 structure, which is used to suspend the fan duct assembly, so that the fan duct has stable support during air conditioner operation, improving the operational reliability and structural integrity of the whole unit.

[0055] Combination Figure 3-11 As shown, this utility model provides an injection mold for an air conditioner drain pan, including a moving mold assembly 20 and a fixed mold assembly. The moving mold assembly 20 includes a moving template 21, which serves as the mounting base for various movable components such as core-pulling mechanisms and sliders.

[0056] Specifically, a first oblique pulling mechanism 22 is obliquely arranged on one side of the moving template 21 along its length. This mechanism includes a first oblique pulling slider 22a and a first oblique pulling cylinder 22b that drives the slider to move back and forth. The first oblique pulling mechanism 22 is used to form the first oblique undercut 11 structure on the air conditioner water collection pan plastic part 10.

[0057] Specifically, a second inclined pulling mechanism 24 is obliquely arranged on the other side of the moving template 21. The second inclined pulling mechanism 24 is collinear with and opposite to the first inclined pulling mechanism 22. This structural layout facilitates symmetrical demolding and improves the overall compactness of the mold. The second inclined pulling mechanism 24 includes a second inclined pulling slider 24a and a second inclined pulling cylinder 24b. The driving direction of the second inclined pulling cylinder 24b is consistent with the sliding direction of the second inclined pulling slider 24a. The moving template 21 is provided with a large slide rail 24c. The second inclined pulling slider 24a is slidably mounted on the large slide rail 24c. A small slide rail 25b is provided on the second inclined pulling slider 24a for mounting the elastic core pulling mechanism 25.

[0058] Specifically, the elastic core-pulling mechanism 25 includes a secondary slider 25a mounted on the second inclined sliding block 24a. The secondary slider 25a is elastically mounted via a spring structure and slidably mounted in a small slide rail 25b on the second inclined sliding block 24a. The spring has an elastic tendency to move the secondary slider 25a away from the cavity. The elastic core-pulling mechanism 25 is used to form the connecting post 14 structure that protrudes outward from the bottom of the second inclined undercut 13 structure. This connecting post 14 is used to connect to the air conditioner housing screws through through holes, ensuring the positioning and strength of the plastic part during assembly. The elastic core-pulling design can reduce the pulling force on the post structure during core pulling, preventing deformation or breakage.

[0059] Specifically, to improve the positioning accuracy during demolding, the first inclined core-pulling slide 22a is provided with a wedge groove 22c, and the fixed mold assembly is provided with a wedge block 31 that cooperates with it. When the mold is closed, the wedge block 31 is inserted into the wedge groove 22c to lock and fix the inclined core-pulling slide, effectively preventing the core-pulling slide from shifting during the mold closing and injection molding process.

[0060] Specifically, in combination Figure 9-10 As shown, a pair of lateral core-pulling mechanisms 23 are respectively provided on both sides of the moving template 21 in the width direction. The lateral core-pulling mechanism 23 includes a side slider 23a, and each side slider 23a is provided with a molding surface for molding the lateral undercut 12 structure of the water collection tray plastic part 10. The molding surface structures of the two side sliders 23a are different.

[0061] Specifically, each side slider 23a is provided with an oblique guide hole 23b, and the fixed mold assembly is provided with an oblique guide post 32 that slides with it. During the mold opening and closing process, the relative movement between the oblique guide post 32 and the oblique guide hole 23b pushes the side slider 23a to move along a preset direction, thereby realizing lateral core pulling and resetting. The structure is simple and reliable, and suitable for high-frequency automated mold opening cycles.

[0062] Specifically, to achieve the forming of the air duct installation structure, the mold is also equipped with a slanted ejector mechanism 27. This slanted ejector mechanism 27 includes a slanted ejector rod 27b and a slanted ejector block 27a at its upper end. The slanted ejector block 27a is embedded in the moving mold core 26 when the mold is closed. One side of the slanted ejector block 27a and the moving mold core 26 are used to form the air duct fixing seat 16 structure. As the installation platform for the air duct assembly, the air duct fixing seat 16 requires high dimensional accuracy and a complete positioning structure. The slanted ejector mechanism 27 can effectively ensure smooth demolding of the forming surface and prevent sticking to the mold.

[0063] Specifically, the fixed mold assembly has a fixed mold core, and the surface of the fixed mold core has multiple molding surfaces, which are used to cooperate with the moving mold structure to form the groove 15 structure on the bottom or sides of the water collection tray plastic part 10. The groove 15 structure can be used for water collection guidance, structural reinforcement, or engagement with other components. After the fixed mold core and the moving mold plate 21 form a closed cavity, the overall shape of the plastic part can be controlled.

[0064] In practical use, the mold opening steps are as follows:

[0065] When the mold opens, the fixed mold and the moving mold separate. First, the inclined guide post 32 on the fixed mold assembly drives the side slider 23a to move laterally along the width direction, thereby completing the core-pulling operation of the side undercut 12 structure. At the same time, the elastic core-pulling mechanism 25, which is set on the second inclined pulling mechanism 24, drives the internal secondary slider 25a to slide relative to the second inclined pulling slider 24a along the small slide rail 25b under the action of spring force, pushing the connecting post 14 area to demold.

[0066] Subsequently, driven by the first inclined pulling cylinder 22b and the second inclined pulling cylinder 24b, the first inclined pulling mechanism 22 and the second inclined pulling mechanism 24 slide synchronously along their respective set inclined directions, realizing the core-pulling action of the first inclined undercut 11 and the second inclined undercut 13. Through the cooperation of the inclined pulling and the elastic sliding structure, the demolding problem of undercut parts in different directions can be effectively solved, ensuring that the molded parts are intact and the overall demolding process is smooth and efficient.

[0067] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0069] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0070] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An injection mold for an air conditioner drain pan, characterized in that, Includes a moving model assembly, the moving model assembly comprising: Dynamic template; The first oblique pulling mechanism is obliquely arranged on one side of the length direction of the moving template and is used to form the first oblique undercut structure on the water collection tray plastic part; The second oblique pulling mechanism is obliquely arranged on the other side of the length direction of the moving template, and is collinear with and opposite to the first oblique pulling mechanism, for forming the second oblique undercut structure on the water collection tray plastic part; The elastic core-pulling mechanism is slidably mounted on the second inclined core-pulling mechanism and is used to form a connecting column structure with a through hole located at the bottom of the second inclined inverted structure. A pair of lateral core-pulling mechanisms are respectively arranged on both sides of the moving template in the width direction, for forming the lateral undercut structure on the water collection tray plastic part.

2. The injection mold for an air conditioner drain pan according to claim 1, characterized in that: The first oblique drawing mechanism includes a first oblique drawing slider and a first oblique drawing cylinder that drives the slider to move.

3. The injection mold for an air conditioner drain pan according to claim 2, characterized in that: The first inclined sliding block is provided with a wedge groove, and the fixed mold assembly is provided with a wedge block that cooperates with the wedge groove. When the mold is closed, the wedge block is embedded in the wedge groove to achieve the positioning of the inclined sliding block.

4. The injection mold for an air conditioner drain pan according to claim 1, characterized in that: The second oblique drawing mechanism includes a second oblique drawing slider and a second oblique drawing oil cylinder that drives the slider.

5. The injection mold for an air conditioner drain pan according to claim 4, characterized in that: The moving template is provided with a slide rail for guiding the second inclined sliding block, and the second inclined sliding block is slidably mounted on the slide rail.

6. The injection mold for an air conditioner drain pan according to claim 4, characterized in that: The elastic core-pulling mechanism includes a secondary slider, which is elastically mounted on the second inclined core-pulling slider.

7. The injection mold for an air conditioner drain pan according to claim 6, characterized in that: The second inclined slider is provided with a small slide rail, and the secondary slider is slidably installed in the small slide rail.

8. The injection mold for an air conditioner drain pan according to claim 1, characterized in that: The lateral core-pulling mechanism includes a side slider, which has a forming surface for forming the lateral undercut structure.

9. The injection mold for an air conditioner drain pan according to claim 8, characterized in that: The side slider is provided with an oblique guide hole, and the fixed mold assembly is provided with an oblique guide post that cooperates with the oblique guide hole, which is used to guide the side slider to slide during the mold opening and closing process.

10. An injection mold for an air conditioner drain pan according to any one of claims 1-9, characterized in that: It also includes a sloping top mechanism, which includes a sloping top rod and a sloping top block disposed at its upper end. The sloping top block is used to form the duct fixing seat structure on the water collection pan plastic part.

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