A semi-transparent machine housing face mask injection mold and automatic production line

Abstract

This utility model relates to a semi-transparent machine housing face mask injection mold and an automated production line. It solves the technical problem of unreasonable design in existing injection molds. The semi-transparent machine housing face mask injection mold includes: a lower mold base with a protruding molding bump in the center; an upper mold base, vertically and vertically positioned above the lower mold base, with a recessed molding cavity wall at the bottom of the upper mold base approaching the upper end of the molding bump; a side mold base, horizontally slidably positioned on the lower mold base, with a lateral molding surface on the inner wall of the side mold base near the lower mold base that approaches the outer wall of the molding bump, and the side mold base forming an inclined molding notch with the molding cavity wall; and a slanted mold base, slidably positioned at the upper end of the side mold base along the inclined direction of the molding notch, with the upper end of the slanted mold base able to connect with the molding cavity wall. This semi-transparent machine housing face mask injection mold avoids stretching of the injection molded product during demolding, improves demolding effect, and reduces flow marks on the surface of the injection molded product.

Description

Technical Field

[0001] This utility model belongs to the field of injection molds and relates to a semi-transparent machine housing face mask injection mold and an automatic production line. Background Technology

[0002] For example, Chinese patent literature discloses an injection mold for forming an arc-shaped shell [202420088729.8], which includes a fixed mold, a moving mold, an inclined ejector mechanism, and a core-pulling mechanism. A fixed mold core is installed on the fixed mold, a moving mold core is installed on the moving mold, and the core-pulling mechanism is installed between the moving mold core and the fixed mold core. The fixed mold core, the moving mold core, the inclined ejector mechanism, and the core-pulling mechanism form a cavity for injection molding an arc-shaped shell part when the mold is closed. The core-pulling mechanism is separated from the arc-shaped shell part when the mold is opened. An ejector pin mechanism is provided on the moving mold. The ejector pin mechanism is used to eject the formed arc-shaped shell part. The inclined ejector mechanism is installed on the ejector pin mechanism. During the ejection of the formed arc-shaped shell part, the ejector pin mechanism drives the inclined ejector mechanism to separate from the formed arc-shaped shell part.

[0003] The drawbacks of the above technical solution are: the use of unidirectional core-pulling demolding for the arc-shaped shell results in a large area covering the arc-shaped injection cavity, which can easily pull the shell during demolding, leading to poor injection molding effect. In addition, the lack of heating device at the corner of the injection cavity makes it easy to produce flow marks. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a semi-transparent machine housing face mask injection mold and an automated production line.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] The semi-transparent housing cover injection mold includes:

[0007] The lower mold base has a protruding forming bump in the middle;

[0008] The upper mold base is vertically and vertically positioned above the lower mold base. The bottom of the upper mold base is recessed and close to the upper mold cavity wall of the forming protrusion.

[0009] A side mold base is horizontally slidably disposed on the lower mold base. The inner wall of the side mold base near the lower mold base is provided with a lateral forming surface that can approach the outer wall of the forming protrusion. The side mold base and the forming cavity wall form an inclined forming notch.

[0010] An inclined mold base is slidably disposed on the upper end of the side mold base along the inclined direction of the molding notch and the upper end of the inclined mold base can be connected to the molding cavity wall. One end of the inclined mold base is provided with an inclined molding end that can approach the corner end of the molding protrusion. The molding protrusion, the molding cavity wall, the side molding surface, and the inclined molding end form a closed injection cavity.

[0011] The upper mold base is provided with a driving part that drives the horizontal sliding of the side mold base, and a locking structure in the upper mold base that drives the inclined mold base to slide synchronously.

[0012] Furthermore, the driving unit includes a guide hole that passes through the side mold base and slides horizontally inward along the side mold base and is inclined upward, and a driving column that is disposed on the upper mold base and has one end slidably disposed along the guide hole.

[0013] Furthermore, the driving unit also includes an abutting inclined surface disposed on the outer wall of the side mold base on the outer side, and a pressing inclined surface disposed on the molding cavity wall and acting on the abutting inclined surface.

[0014] Furthermore, the locking structure includes a mating groove disposed in the molding cavity wall, a fixing buckle disposed in the mating groove, and a locking hook disposed on the upper end of the inclined mold base and capable of engaging with the fixing buckle.

[0015] Furthermore, the inclined mold base is provided with sliding grooves on both sides, and the side mold base is provided with guide rods that are slidably disposed in the sliding grooves.

[0016] Furthermore, one side of the fixing buckle and the side wall of the locking hook are provided with wedge-shaped surfaces that can engage.

[0017] Furthermore, the sliding direction of the inclined mold base is perpendicular to the corner end of the forming protrusion, and the corner end of the forming protrusion includes either an inclined surface or an arc-shaped convex surface.

[0018] Furthermore, a heating rod is provided inside the inclined mold base near the inclined forming end.

[0019] Furthermore, the side mold base is provided with a relief groove that extends through the outer side and the upper end of the side mold base.

[0020] This utility model also provides an automated production line having the semi-transparent housing mask injection mold as described above.

[0021] Compared with existing technologies, this semi-transparent housing face shield injection mold has a compact and reliable overall structure. By using a combination of two-way demolding with side mold base and inclined mold base, multi-stage demolding and subsequent synchronous demolding through the upper mold base opening, it avoids stretching of the injection molded product during demolding, improves the demolding effect, and still retains heating rods in the closed inclined mold base to ensure a better injection effect after melting after the corner of the injection cavity, and reduces flow marks on the surface of the injection molded product. Attached Figure Description

[0022] Figure 1 A schematic diagram of a semi-transparent machine housing face shield injection mold provided by this utility model.

[0023] Figure 2 for Figure 1 An enlarged schematic diagram of area A of the injection mold for the semi-transparent housing cover.

[0024] Figure 3 for Figure 1 A cross-sectional schematic diagram of the injection mold for a semi-transparent housing cover.

[0025] Figure 4 for Figure 1 A schematic diagram of the injection molded product of the semi-transparent machine housing face mask injection mold.

[0026] In the diagram, 10 is the lower mold base; 11 is the molding protrusion; 20 is the upper mold base; 21 is the molding cavity wall; 30 is the side mold base; 31 is the lateral molding surface; 32 is the molding notch; 33 is the relief groove; 40 is the inclined mold base; 41 is the inclined molding end; 42 is the injection cavity; 43 is the heating rod; 50 is the drive unit; 51 is the guide hole; 52 is the drive column; 53 is the abutment inclined surface; 54 is the downward pressure inclined surface; 60 is the locking structure; 61 is the mating groove; 62 is the fixing buckle; 63 is the locking hook; 64 is the sliding groove; 65 is the guide rod; and 66 is the wedge-shaped surface. Detailed Implementation

[0027] Example 1, please refer to Figures 1 to 4 This is a schematic diagram of a semi-transparent machine housing face mask injection mold provided by this utility model. The semi-transparent machine housing face mask injection mold includes: a lower mold base 10 and an upper mold base 20 vertically spaced apart, a side mold base 30 slidably disposed on the lower mold base 10, an inclined mold base 40 slidably disposed on the side mold base 30, and an injection cavity 42 formed by the closing of the lower mold base 10, upper mold base 20, side mold base 30, and inclined mold base 40. It should be noted that the difficulty of the semi-transparent machine housing face mask injection mold lies in the injection molding of the arc-shaped corner of the shell and the quality requirements of the semi-transparent surface. It is conceivable that this semi-transparent machine housing face mask injection mold also includes other functional components and specific structures, such as electrical connection components, injection components, ejector pin components, cooling components, etc., which are all technologies known to those skilled in the art, and therefore will not be described in detail here.

[0028] In this embodiment, the lower mold base 10 is a fixed mold base, fixed on the machine base. A protruding molding protrusion 11 is provided in the middle of the lower mold base 10. The molding protrusion 11 is used for molding the bottom surface of the injection molded shell. The ejector pin assembly is provided in the lower mold base 10 and the ejector pin is inserted in the molding protrusion 11. The ejector pin is driven by an external drive cylinder or air cylinder to protrude from the molding protrusion 11 to form bottom surface ejection.

[0029] In this embodiment, the upper mold base 20 is a movable mold base and is located above the lower mold base 10. The upper mold base 20 is externally connected to a drive cylinder, and a vertical lifting guide is formed between the upper mold base 20 and the lower mold base 10 through the cooperation of a vertical hole and a vertical column. A recessed molding cavity wall 21 is provided at the bottom of the upper mold base 20, which makes the mold closing of the upper mold base 20 and the lower mold base 10 more compact. When the molding cavity wall 21 approaches the upper end of the molding protrusion 11, it forms the horizontal section of the injection cavity 42. An injection hole communicating with the injection cavity 42 is provided in the upper mold base 20, through which raw materials are injected into the injection cavity 42.

[0030] In this embodiment, the side mold base 30 is horizontally slidably disposed on the lower mold base 10 and located on one side of the molding protrusion. The inner wall of the side mold base 30 near the lower mold base 10 is provided with a lateral molding surface 31 that can approach the outer wall of the molding protrusion 11. A vertical section of the injection cavity 42 is formed between the lateral molding surface 31 and the molding protrusion 11. An inclined molding notch 32 is formed between the side mold base 30 and the molding cavity wall 21, and the molding notch 32 corresponds to the corner end of the injection cavity 42. A drive unit 50 is provided on the upper mold base 20 to drive the side mold base 30 to slide horizontally. The drive unit 50 synchronously completes the horizontal movement of the side mold base 30 when the upper mold is raised and lowered.

[0031] Specifically, the drive unit 50 includes a guide hole 51 that passes through the side mold base 30 and slides horizontally inward along the side mold base 30 and is inclined upward, and a drive post 52 that is disposed on the upper mold base 20 and has one end slidably disposed along the guide hole 51. The drive post 52 is always located in the guide hole 51. When the upper mold base 20 opens and rises, the guide post drives the side mold base 30 to move horizontally outward to complete the lateral mold opening. When the upper mold base 20 closes and descends, the guide post drives the side mold base 30 to move horizontally inward to complete the lateral mold closing.

[0032] Similarly, the drive unit 50 also includes an abutment slope 53 disposed on the outer wall of the side mold base 30 on the outer side, and a pressing slope 54 disposed on the molding cavity wall 21 and acting on the abutment slope 53, making the whole unit compact and reliable. When the upper mold base 20 opens and rises, the upper mold base 20 drives the side mold base 30 to move horizontally outward, and the abutment slope 53 acts on the pressing slope 54 to complete the motion guidance. When the upper mold base 20 closes and descends, the pressing slope 54 acts on the abutment slope 53, driving the side mold base 30 to move horizontally inward to complete the lateral mold closing, increasing the force applied by the side mold base 30.

[0033] In this embodiment, the inclined mold base 40 is enclosed between the upper mold base 20, the lower mold base 10, and the side mold base 30, and the upper end of the inclined mold base 40 can connect with the molding cavity wall 21. The inclined mold base 40 is slidably disposed on the upper end of the side mold base 30 along the inclined direction of the molding notch 32. Specifically, sliding grooves 64 are provided on both sides of the inclined mold base 40, and guide rods 65 are slidably disposed in the sliding grooves 64 on the side mold base 30. Through the cooperation of the sliding grooves 64 and the guide rods 65, the movement guidance and installation stability of the inclined mold base 40 are ensured. One end of the inclined mold base 40 is provided with an inclined molding end 41 that can approach the corner end of the molding protrusion 11 to form a corner molding cavity. The horizontal molding cavity, the vertical molding cavity, and the corner molding cavity are connected to form the final injection cavity 42. The corner end of the molding protrusion 11 includes either a slope or an arc-shaped convex surface. In this embodiment, the corner end of the molding protrusion 11 has a slope structure. The sliding direction of the inclined mold base 40 is perpendicular to the corner end of the molding protrusion 11. This structure can more effectively form a demolding between the inclined mold base 40 and the corner end of the molding protrusion 11, reducing the pulling between the surface of the inclined mold base 40 and the injection molded product.

[0034] In this embodiment, the upper mold base 20 has a locking structure 60 that drives the inclined mold base 40 to slide synchronously. The locking structure 60 includes a mating groove 61 in the molding cavity wall 21, a fixed buckle 62 in the mating groove 61, and a locking hook 63 on the upper end of the inclined mold base 40 that can overlap the fixed buckle 62. The locking hook 63 and the fixed buckle 62 overlap in opposite directions to form the locking structure 60. It can be imagined that when the upper mold base 20 rises to open the mold, as the side mold base 30 begins to move outward, the locking structure 60 drives the inclined mold base 40 to move obliquely upward relative to the side mold base 30 until the locking hook 63 disengages from the fixed buckle 62. Then, the upper mold base 20 drives the side mold base 30 and the inclined mold base 40 to move horizontally outward synchronously. When the upper mold base 20 descends to close the mold, the upper mold base 20 drives the side mold base 30 and the inclined mold base 40 to return along the original path.

[0035] This semi-transparent housing face mask injection mold has a compact and reliable overall structure. It adopts a combination of two-way demolding, multi-stage demolding, and subsequent synchronous demolding through the upper mold base 20 and the side mold base 30 and the inclined mold base 40, which avoids demolding stretching of the injection molded product and improves the demolding effect.

[0036] Ideally, a wedge-shaped surface 66 is provided on one side of the fixed buckle 62 and the side wall of the locking hook 63, which can engage with each other. The wedge-shaped surface 66 facilitates the smooth engagement or disengagement of the fixed buckle 62 and the locking hook 63, and can also serve as the setting of the disengagement node of the locking structure 60.

[0037] In this embodiment, a heating rod 43 is provided inside the inclined mold base 40 near the inclined molding end 41. Although the inclined mold base 40 is enclosed between the upper mold base 20, the lower mold base 10, and the side mold base 30, the heating rod 43 is still retained to ensure a better injection molding effect after melting at the corner of the injection cavity 42 and to reduce flow marks on the surface of the injection molded product. The side mold base 30 is provided with a relief groove 33 that penetrates the outer side and the upper end of the side mold base 30. The relief groove 33 is used for the inclined mold base 40 to pass through the side mold base 30 to connect to external electrical energy storage without interfering with the guide structure.

[0038] It should be noted that the hydraulic cylinder, pneumatic cylinder, motor, and electrical energy storage in this utility model are all commercially available components and are existing technologies, so they will not be described in detail here.

[0039] Example 2, please refer to Figure 4 This utility model also provides an automated production line having a semi-transparent machine housing face mask injection mold as described above. Except for the semi-transparent machine housing face mask injection mold, all other components are existing technology or commercially available parts.

[0040] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A semi-transparent machine housing face shield injection mold, characterized in that, include: The lower mold base (10) has a protruding forming protrusion (11) in the middle. The upper mold base (20) is vertically raised and lowered above the lower mold base (10). The bottom of the upper mold base (20) is recessed and close to the upper mold cavity wall (21) of the molding protrusion (11). The side mold base (30) is horizontally slidably disposed on the lower mold base (10). The inner wall of the side mold base (30) near the lower mold base (10) is provided with a lateral forming surface (31) that can approach the outer wall of the forming protrusion (11). The side mold base (30) and the forming cavity wall (21) form an inclined forming notch (32). An inclined mold base (40) is slidably disposed on the upper end of the side mold base (30) along the inclined direction of the molding notch (32) and the upper end of the inclined mold base (40) can be connected to the molding cavity wall (21). One end of the inclined mold base (40) is provided with an inclined molding end (41) that can approach the corner end of the molding protrusion (11). The molding protrusion (11), the molding cavity wall (21), the side molding surface (31), and the inclined molding end (41) form a closed injection cavity (42). The upper mold base (20) is provided with a driving part (50) for horizontal sliding of the driving side mold base (30), and a locking structure (60) in the upper mold base (20) for synchronous sliding of the driving inclined mold base (40).

2. The injection mold for the semi-transparent housing cover according to claim 1, characterized in that, The drive unit (50) includes a guide hole (51) that passes through the side mold base (30) and slides horizontally inward along the side mold base (30) and is inclined upward, and a drive column (52) that is disposed on the upper mold base (20) and slides along the guide hole (51) at one end.

3. The injection mold for the semi-transparent housing cover according to claim 2, characterized in that, The drive unit (50) also includes an abutting slope (53) disposed on the outer wall of the side mold base (30) on the outer side, and a pressing slope (54) disposed on the molding cavity wall (21) and acting on the abutting slope (53).

4. The injection mold for the semi-transparent housing cover according to claim 1, characterized in that, The locking structure (60) includes a mating groove (61) provided in the molding cavity wall (21), a fixing buckle (62) provided in the mating groove (61), and a locking hook (63) provided on the upper end of the inclined mold base (40) and capable of engaging with the fixing buckle (62).

5. The injection mold for the semi-transparent housing cover according to claim 4, characterized in that, The inclined mold base (40) is provided with sliding grooves (64) on both sides, and the side mold base (30) is provided with guide rods (65) that are slidably disposed in the sliding grooves (64).

6. The injection mold for the semi-transparent housing cover according to claim 5, characterized in that, The fixed buckle (62) has a wedge-shaped surface (66) on one side and the locking hook (63) side wall that can be engaged.

7. The injection mold for the semi-transparent housing cover according to claim 1, characterized in that, The sliding direction of the inclined mold base (40) is perpendicular to the corner end of the forming protrusion (11), and the corner end of the forming protrusion (11) includes either an inclined surface or an arc-shaped convex surface.

8. The injection mold for the semi-transparent housing cover according to claim 1, characterized in that, A heating rod (43) is provided inside the inclined mold base (40) near the inclined forming end (41).

9. The injection mold for the semi-transparent housing cover according to claim 8, characterized in that, The side mold base (30) is provided with a relief groove (33) that runs through the outer side and the upper end of the side mold base (30).

10. An automated production line, characterized in that, An injection mold having any one of claims 1-9 for a translucent housing face shield.

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