Inclined blade cross-flow wind wheel mold with seven sliding block molds

Abstract

The utility model relates to the field of cross-flow wind wheel dies, in particular to an inclined blade cross-flow wind wheel die with seven sliding block dies, which comprises a lower die set and an upper die set. An upper die core is constructed on the upper die set, and a lower die core corresponding to the upper die core for die assembly and seven sliding blocks arranged on the outer side of the lower die core in the circumferential direction are arranged on the lower die set; the seven sliding blocks are arranged on the lower module in a sliding mode, and a driving assembly used for driving the sliding blocks to slide is constructed on the upper module; the seven sliding blocks slide clockwise or anticlockwise in a deviated mode in the radial direction relative to the axis point of the lower die core, and the inner side extension lines of the sliding blocks in the sliding direction deviate to the pointing direction of the connecting lines of the outer edges and the inner edges of the blade cavities in butt joint with the sliding blocks relative to the axis point of the lower die core. The grinding tool is smoother in mold stripping.

Description

Technical Field

[0001] The utility model relates to the field of crossflow wind wheel grinding tools, in particular to a crossflow wind wheel mold with inclined blades and seven slider molds. Background Art

[0002] The crossflow impeller is an important component in an air conditioner. Its assembly method and basic working process are as follows: an intake grille and an exhaust grille are set in front of the indoor unit shell, and they are connected through a ventilation passage in the shell; a crossflow impeller is set on the downwind side of the indoor heat exchanger on the ventilation passage, so that the air sucked into the shell from the intake grille undergoes heat exchange in the indoor heat exchanger, and then the crossflow impeller sends air to the room again through the exhaust grille, thus forming a cooling and heating air conditioner.

[0003] Chinese utility model patent publication number "CN202082145U" discloses a crossflow impeller with serrated blades. The impeller comprises left and right end plates fixed to a rotating shaft; and a plurality of blades arranged axially along the rotating shaft and sandwiched between the end plates. The blades have serrations on their trailing edges and / or leading edges. This utility model uses serrated blades instead of toothless blades, effectively breaking up vortices generated by airflow passing over the trailing edges of the blades. This effectively reduces flow resistance, vibration, and noise, and improves the efficiency of the crossflow impeller.

[0004] On this basis, the prior patent document with publication number "CN221271902U" describes a mold for a crossflow impeller with serrated, oblique blades. The mold comprises a lower mold assembly and an upper mold assembly; the upper mold assembly is constructed with an upper mold core, the lower mold assembly is provided with a lower mold core, and multiple sliders are arranged along the circumferential outer side of the lower mold core. The sliders are radially slidably arranged on the lower mold assembly. When the upper and lower mold assemblies are assembled, the multiple sliders are circumferentially connected to form a ring around the outer side of the lower mold core. The upper mold core, lower mold core, and multiple sliders are combined to form a mold cavity for injection molding the crossflow impeller. The circumferential edge of the lower mold core is regularly or irregularly arranged with multiple blade cavities for injection molding the blades. The curved surface of the inner end of each slider is constructed with a groove that connects with the blade cavity. The groove has multiple protrusions spaced along its length. The protrusions are used to form the serrations on the outer edge of the blades of the crossflow impeller. This solution injection molds the impeller more uniformly and stably in every part, reduces vibration and noise, and improves the appearance of the molded product.

[0005] However, the multiple sliders in the above scheme slide radially along the center of the wind wheel, and the sliding direction of the slider is too far away from the blades on both sides of the docking area; when the protrusion is large and the serrations formed on the outer edge of the blade are deep, the radially sliding slider is difficult to demold, so it needs to be improved. Summary of the Invention

[0006] In order to solve the above problems, the purpose of the present invention is to provide an inclined blade cross-flow impeller mold with seven slider molds, which makes demoulding smoother.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0008] The inclined blade cross-flow wind wheel mold with seven slider molds includes a lower mold group and an upper mold group; the upper mold group is constructed with an upper mold core, the lower mold group is provided with a lower mold core corresponding to the upper mold core, and seven sliders are arranged along the circumferential outer side of the lower mold core; the seven sliders are slidably arranged on the lower mold group, and the upper mold group is constructed with a driving component for driving the sliders to slide; when the upper mold group and the lower mold are combined, the multiple sliders are circumferentially connected to the outer side of the lower mold core to form a ring, and the upper mold core, the lower mold core and the seven sliders are combined to form a mold cavity for injection molding the cross-flow wind wheel; the circumferential edge of the lower mold core A plurality of blade cavities for injection molding of blades are regularly or irregularly arranged on the edge, and a groove for docking with the blade cavity and for injection molding of the outer edge of the blade is constructed on the arc surface of the inner end of each slider; the groove is provided with a plurality of protrusions arranged at intervals along its longitudinal direction, and the protrusions are used to form serrations on the outer edge of the blade of the cross-flow impeller; it is characterized in that: the seven sliders slide clockwise or counterclockwise in the radial direction relative to the axis point of the lower mold core, and the inner extension line of the sliding direction of the slider is biased toward the direction of the connection line between the outer edge and the inner edge of the blade cavity docked by the slider relative to the axis point of the lower mold core.

[0009] The present invention adopts the above-mentioned technical solution, which relates to a cross-flow wind wheel mold with inclined blades and seven slider molds. The cross-flow wind wheel mold includes a lower mold group and an upper mold group, wherein the upper mold core in the upper mold group and the lower mold core in the lower mold group, and the seven sliders are combined to form a mold cavity for injection molding the cross-flow wind wheel. During the mold closing process, the seven sliders move inward and circumferentially connect to form a ring shape on the outer side of the lower mold core; and during the mold opening process, the multiple sliders move outward so that they can be spread out, which facilitates mold opening. In addition, the blades of the cross-flow wind wheel in this solution are molded as a whole in the blade cavity of the lower mold core, and the outer edge of the blade is molded inside the groove of the slider. Since the groove has multiple protrusions arranged at intervals along its longitudinal direction, serrations are formed on the outer edge of the injection-molded blade. In this way, each part of the wind wheel is made more uniform and stable; vibration and noise are reduced, and the molded product is more beautiful.

[0010] On this basis, in order to avoid the problem of radial sliding of the slider making it difficult to demold, this solution improves the moving direction of the slider. Specifically, the seven sliders slide clockwise or counterclockwise in the radial direction relative to the axis of the lower mold core, so that the inner extension line of the sliding direction of the slider is biased towards the direction of the connecting line between the outer edge and the inner edge of the blade cavity to which the slider is connected relative to the axis of the lower mold core.

[0011] Based on the above improvements, the misalignment angle between the sliding direction of the slider and the outer edges of all blades in the docking area is small, making demoulding easier.

[0012] In a further solution, an end disc cavity for the through-flow wind wheel end disc is formed between the upper mold core, the lower mold core thereunder, and the seven sliders; the upper end of each blade cavity is connected to the end disc cavity.

[0013] Preferably, the center of the upper mold core is constructed with a longitudinal flow channel and a transverse flow channel connected to the inner end of the flow channel and extending radially into the end plate cavity. In this solution, both the longitudinal and transverse flow channels serve as pathways for the injection fluid to enter the mold cavity. After injection molding is complete, a material handle is formed within the longitudinal and transverse flow channels, which connects to the crossflow impeller and can be removed.

[0014] Preferably, the lower mold core is arranged at the center of the lower mold assembly, and a slide groove is provided on the lower mold assembly in a radial direction of the axis point of the lower mold core in a clockwise or counterclockwise direction; the slider is embedded in the slide groove.

[0015] Preferably, the outer end surface of the slider is constructed as a first inclined surface that gradually slopes downward from the inside to the outside. A shovel base is provided on the lower end surface of the upper mold assembly, corresponding to each slider. The shovel base is constructed with a second inclined surface that matches the first inclined surface. During the assembly of the upper and lower molds, the shovel base contacts the inclined surfaces of the slider, driving the slider inward. In this embodiment, the shovel base and the slider adopt a wedge-shaped structure to drive the slider during the longitudinal movement of the upper mold assembly.

[0016] Preferably, the lower die assembly is further provided with a spring acting on the slider to drive the slider to return and slide outward.

[0017] Preferably, the shovel base is further provided with an inclined guide post arranged parallel to the second inclined surface. Each slider is formed with an inclined hole for the guide post to pass through. The lower end of the guide post is inserted into the inclined hole. During the opening and closing of the upper and lower mold assemblies, the guide post guides the movement of the slider. During the vertical movement of the upper mold assembly, the guide post is inserted at an angle into the inclined hole, causing the slider to slide synchronously inward and outward based on the height change of the upper mold assembly.

[0018] Preferably, a limiting column is constructed inside the chute for limiting the outermost side of the sliding path of the slider. When the slider moves to the outermost side of the path, the slider is restrained by the limiting column.

[0019] Preferably, the slider includes a sliding part and a driving part arranged above the inner side of the sliding part; the groove and the protrusion are formed on the arc surface of the inner end of the slider, the outer wall surface of the driving part serves as the first inclined surface, and the inclined hole is formed on the sliding part.

[0020] Furthermore, the lower mold assembly is provided with multiple fixed blocks, the slide groove is formed between two adjacent fixed blocks, and the lower end of the fixed block is constructed with a strip groove communicating with the slide groove; the sliding part of the slider is embedded in the slide groove, and convex strips embedded in the strip groove are constructed on both sides of the sliding part. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the mold closing state of the inclined blade crossflow impeller involved in the present invention.

[0022] Figure 2 This is a schematic diagram of the separation state of the upper and lower molds of the inclined blade cross-flow impeller mold.

[0023] Figure 3 Schematic diagram of the top view of the lower mold.

[0024] Figure 4 Schematic diagram of the combined state of the lower mold core and the slider.

[0025] Figure 5 Schematic diagram of the lower end face of the upper die assembly.

[0026] Figure 6 Schematic diagram of the slider structure. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0030] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] like Figures 1 to 6 As shown, this embodiment relates to a mold for a skewed-blade crossflow impeller having seven slider molds, comprising a lower mold assembly 1 and an upper mold assembly 2. The upper mold assembly 2 is provided with an upper mold core 3, and the lower mold assembly 1 is provided with a lower mold core 4 that is molded in correspondence with the upper mold core 3, as well as seven sliders 5 arranged circumferentially outwardly of the lower mold core 4. The seven sliders 5 are slidably arranged on the lower mold assembly 1, and the upper mold assembly 2 is provided with a drive assembly for driving the sliders 5 to slide. When the upper mold assembly 2 and the lower mold assembly 1 are molded together, the multiple sliders 5 are circumferentially connected to form a ring shape on the outer side of the lower mold core 4. The upper mold core 3, the lower mold core 4, and the seven sliders 5 are combined to form a mold cavity for injection molding the crossflow impeller. Multiple blade cavities 41 for injection molding blades are regularly or irregularly arranged on the circumferential edge of the lower mold core 4. A groove 51 is formed on the arcuate surface of the inner end of each slider 5 to connect with the blade cavity 41 and to form the outer edge of the blade by injection molding. The groove 51 is provided with a plurality of protrusions 52 spaced apart along its longitudinal direction. The protrusions 52 are used to form saw teeth on the outer edge of the blades of the crossflow impeller.

[0033] The cross-flow wind wheel mold includes a lower mold group and an upper mold group, wherein the upper mold core in the upper mold group, the lower mold core in the lower mold group, and seven sliders are combined to form a mold cavity for injection molding the cross-flow wind wheel. During the mold closing process, the seven sliders move inward and circumferentially connect to form a ring on the outer side of the lower mold core. During the mold opening process, multiple sliders move outward so that they can be spread out, which is convenient for mold opening. In addition, the blades of the cross-flow wind wheel in this solution are molded as a whole in the blade cavity of the lower mold core, and the outer edge of the blade is molded inside the groove of the slider. Since the groove has multiple protrusions arranged at intervals along its longitudinal direction, serrations are formed on the outer edge of the injection-molded blade. In this way, each part of the wind wheel is made more uniform and stable. Vibration and noise are reduced, and the molded product is more beautiful.

[0034] In a further embodiment, an end disc cavity 31 for the end disc of the crossflow impeller is formed between the upper mold core 3, the lower mold core 4 below it, and the seven sliders 5. The upper end of each blade cavity 41 is connected to the end disc cavity 31. Furthermore, a longitudinal flow channel 32 is constructed in the center of the upper mold core 3, as well as a transverse flow channel 33 that is connected to the inner end of the flow channel and extends radially into the end disc cavity 31. In this embodiment, both the longitudinal and transverse flow channels serve as channels for the injection fluid to enter the mold cavity. After the injection molding is completed, a material handle connected to the crossflow impeller is formed inside the longitudinal and transverse flow channels and can be removed.

[0035] like Figure 3 As shown, in order to avoid the problem of difficult demoulding due to radial sliding of the slider, this solution improves the moving direction of the slider. Specifically, the seven sliders 5 slide clockwise or counterclockwise in the radial direction relative to the axis of the lower mold core 4, so that the inner extension line of the sliding direction of the slider 5 is biased towards the direction of the connection line between the outer edge and the inner edge of the blade cavity 41 to which the slider is connected relative to the axis of the lower mold core 4. Based on the above improvement, the misalignment angle between the sliding direction of the slider and the outer edges of all blades in the docking area is small, making demoulding easier. Specifically, it can be attached Figure 3 As shown, the misalignment angle referred to in this case can be referred to as the angle α in the figure, which is the angle between the sliding direction of the slider and the extension line of the blade outer edge. The sliding direction of the slider 5 in the figure is indicated by L2, the connecting line between the outer and inner edges of the blade cavity 41 is indicated by L1, and the axis point of the lower mold core 4 is the center of the circle O. Lines L1 and L2 in the figure are both offset to the same side of the center O.

[0036] Further Figure 2-4 As shown, the lower mold core 4 is disposed at the center of the lower mold assembly 1. A slide groove 11 is provided on the lower mold assembly 1 in a clockwise or counterclockwise direction radially along the axis of the lower mold core 4. The slider 5 is embedded in the slide groove 11. The lower mold assembly 1 is also provided with a spring that acts on the slider 5 to drive it to return and slide outward.

[0037] Figure 2In the embodiment, the outer end surface of the slider 5 is constructed as a first inclined surface 53 that slopes gradually downward from the inside to the outside. A shovel base 6 is provided on the lower end surface of the upper mold assembly 2, corresponding to each slider 5. The shovel base 6 has a second inclined surface 61 that mates with the first inclined surface 53. During the closing of the upper mold assembly 2 and the lower mold assembly 1, the shovel base 6 abuts against the inclined surfaces of the slider 5, driving the slider 5 inward. In this embodiment, the shovel base and the slider employ a wedge-shaped structure, enabling the slider to slide during the longitudinal movement of the upper mold assembly. The shovel base 6 also has an inclined guide post 62, arranged parallel to the second inclined surface 61. Each slider 5 has an inclined hole 54 through which the guide post 62 passes. The lower end of the guide post 62 is inserted into the inclined hole 54. The guide post 62 guides the movement of the slider 5 during the opening and closing of the upper mold assembly 2 and the lower mold assembly 1. During the vertical movement of the upper mold assembly, the guide post is inserted into the inclined hole at an angle, causing the slider to slide synchronously inward and outward based on the height change of the upper mold assembly.

[0038] In addition, a limiting column is constructed inside the sliding groove 11 for limiting the outermost side of the sliding path of the slider 5. When the slider 5 moves to the outermost side of the path, the slider 5 is stopped and limited by the limiting column.

[0039] Furthermore, the slider 5 includes a sliding portion 55 and a driving portion 56 disposed above and inside the sliding portion 55. The groove 51 and protrusion 52 are formed on the curved surface of the inner end of the slider 5. The outer wall of the driving portion 56 serves as a first inclined surface 53, and an inclined hole 54 is formed on the sliding portion 55. The lower die assembly 1 is provided with multiple fixed blocks 10, with the sliding groove 11 formed between adjacent fixed blocks 10. The lower ends of the fixed blocks 10 are formed with strip grooves 12 that communicate with the sliding grooves 11. The sliding portion 55 of the slider 5 is embedded in the sliding grooves 11, and protrusions 57 are formed on both sides of the sliding portion 55 to fit into the strip grooves 12.

[0040] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A skew-blade crossflow impeller mold with seven slider molds, comprising a lower mold group (1) and an upper mold group (2); an upper mold core (3) is constructed on the upper mold group (2); a lower mold core (4) corresponding to the upper mold core (3) is provided on the lower mold group (1), and seven sliders (5) are arranged along the circumferential outer side of the lower mold core (4); the seven sliders (5) are slidably arranged on the lower mold group (1), A driving assembly for driving the slider (5) to slide is constructed on the upper mold group (2); when the upper mold group (2) and the lower mold group (1) are molded together, multiple sliders (5) are circumferentially connected to form a ring on the outer side of the lower mold core (4), and the upper mold core (3), the lower mold core (4) and the seven sliders (5) are combined to form a mold cavity for injection molding a cross-flow wind wheel; multiple blade cavities (41) for injection molding blades are regularly arranged on the circumferential edge of the lower mold core (4), and a groove (51) is constructed on the arc surface of the inner end of each slider (5) for connecting with the blade cavity (41) and for injection molding the outer edge of the blade; the groove (51) is spaced apart along its longitudinal direction with multiple protrusions (52), and the protrusions (52) are used to form serrations on the outer edge of the blade of the cross-flow wind wheel; it is characterized in that: The seven sliders (5) slide clockwise or counterclockwise in the radial direction relative to the axis of the lower mold core (4), and the inner extension line of the sliding direction of the slider (5) is biased towards the direction of the connection line between the outer edge and the inner edge of the blade cavity (41) to which the slider is connected relative to the axis of the lower mold core (4).

2. The inclined blade crossflow impeller mold with seven slider molds according to claim 1, characterized in that: An end disk cavity (31) for a through-flow wind wheel end disk is formed between the upper mold core (3), the lower mold core (4) below it, and the seven sliders (5); the upper end of each blade cavity (41) is connected to the end disk cavity (31).

3. The inclined blade crossflow impeller mold with seven slider molds according to claim 1, characterized in that: The center of the upper mold core (3) is constructed with a longitudinal flow channel (32) and a transverse flow channel (33) that is connected to the inner end of the flow channel and radially extends into the end disc cavity (31).

4. The inclined blade crossflow impeller mold with seven slider molds according to claim 1, characterized in that: The lower mold core (4) is arranged at the center of the lower mold assembly (1), and a slide groove (11) is arranged on the lower mold assembly (1) in a clockwise or counterclockwise direction along the radial direction of the axis point of the lower mold core (4); the slider (5) is embedded in the slide groove (11).

5. The inclined blade cross-flow impeller mold with seven slider molds according to claim 4, characterized in that: The outer end surface of the slider (5) is constructed as a first inclined surface (53) that gradually slopes downward from the inside to the outside, and a shovel base (6) is provided on the lower end surface of the upper mold assembly (2) corresponding to each slider (5), and a second inclined surface (61) that matches the first inclined surface (53) is constructed on the shovel base (6); when the upper mold assembly (2) and the lower mold assembly (1) are in the process of closing the mold, the shovel base (6) and the inclined surface of the slider (5) are abutted against each other to drive the slider (5) to slide inward.

6. The inclined blade crossflow impeller mold with seven slider molds according to claim 5, characterized in that: The lower die assembly (1) is also provided with a spring that acts on the slider (5) and drives the slider (5) to return and slide outward.

7. The inclined blade crossflow impeller mold with seven slider molds according to claim 5, characterized in that: The shovel base (6) is further provided with an inclined guide column (62) arranged parallel to the second inclined surface (61), and each slider (5) is constructed with an inclined hole (54) for the inclined guide column (62) to pass through; the lower end of the inclined guide column (62) is inserted into the inclined hole (54), and during the process of opening or closing the upper mold assembly (2) and the lower mold assembly (1), the inclined guide column (62) guides the movement of the slider (5).

8. The inclined blade crossflow impeller mold with seven slider molds according to claim 5, characterized in that: A limiting column is constructed inside the sliding groove (11) for limiting the outermost side of the sliding path of the slider (5).

9. The inclined blade crossflow impeller mold with seven slider molds according to claim 7, characterized in that: The slider (5) includes a sliding portion (55) and a driving portion (56) disposed above the inner side of the sliding portion (55); the groove (51) and the protrusion (52) are formed on the arc surface of the inner end of the slider (5); the outer wall surface of the driving portion (56) serves as a first inclined surface (53); and the inclined hole (54) is formed on the sliding portion (55).

10. The inclined blade cross-flow impeller mold with seven slider molds according to claim 9, characterized in that: The lower die assembly (1) is provided with a plurality of fixed blocks (10), the slide groove (11) is formed between two adjacent fixed blocks (10), and the lower end of the fixed block (10) is constructed with a strip groove (12) communicating with the slide groove (11); the sliding portion (55) of the slider (5) is embedded in the slide groove (11), and convex strips (57) embedded in the strip groove (12) are constructed on both sides of the sliding portion (55).

Images