Child folding bathtub mold

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a child folding bathtub mold. The folding bathtub forming mold comprises a folding bathtub forming lower mold and a folding bathtub forming upper mold, an injection molding flow dividing piece is arranged above the folding bathtub forming upper mold, a middle forming convex part and an edge forming convex part are arranged in the folding bathtub forming lower mold, and a middle forming concave part and an edge forming concave part are arranged in the folding bathtub forming upper mold. The injection molding flow dividing piece ensures that injection molding materials are evenly distributed, and the consistency of the quality of all parts of the bathtub is improved; the formed convex part is accurately matched with the concave part to ensure that the shape and size precision of the bathtub reach the standard; the side hole core-pulling assembly achieves forming of side holes of the bathtub and core pulling before demolding, and plastic at the side holes is prevented from adhering to the mold. And the straight ejection demolding pieces complete product demolding, and work conflicts between the straight ejection demolding pieces and the product are avoided through staggered arrangement.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a children's folding bathtub mold. Background Technology

[0002] In the production of children's products, foldable bathtubs are popular among parents due to their ease of storage and portability. However, traditional children's bathtub molds suffer from several problems during production, such as: poor molding results, making it difficult to guarantee the shape and dimensional accuracy of the bathtub; difficulty in demolding, easily causing product damage and affecting production efficiency and product quality; and uneven plastic distribution during injection molding, affecting the strength and durability of the bathtub. Therefore, a new type of foldable children's bathtub mold needs to be designed to solve these problems.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, Chinese patent discloses a high-gloss injection molding mold for children's plastic bathtubs [Application No.: 201921682748.9]. This mold includes a moving molding template with a bathtub molding cavity inside. A bath rack molding structure is provided on the inner wall of the bathtub molding cavity, extending to the inner bottom wall of the cavity. The inner bottom wall of the cavity is recessed to form a seat cavity. A supporting boss is provided between the bath rack molding structure and the seat cavity. Both the seat cavity and the supporting boss are symmetrically arranged along the central axis of the bathtub molding cavity. However, this solution still suffers from defects such as uneven material distribution during injection molding, difficulty in simultaneously molding the bathtub side holes, and difficulty in demolding. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned problems by providing a children's folding bathtub mold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A children's folding bathtub mold includes a lower mold and an upper mold. An injection molding manifold is located above the upper mold. The lower mold has a central forming protrusion and an edge forming protrusion. The upper mold has a central forming recess and an edge forming recess. The central forming protrusion and the central forming recess are positioned and shaped accordingly. The edge forming protrusion and the edge forming recess are positioned and shaped accordingly. The lower mold has a side-hole core-pulling assembly that can move along one end near or away from the edge forming protrusion. A straight ejector is located below the lower mold. The side-hole core-pulling assembly and the straight ejector are staggered.

[0007] In the aforementioned children's folding bathtub mold, the side hole core-pulling assembly includes a plurality of side hole forming rods disposed in the lower mold of the folding bathtub forming, and the lower mold of the folding bathtub forming is provided with a forming rod connector, which is connected to the side hole forming rod.

[0008] In the aforementioned children's folding bathtub mold, the forming rod connector includes a forming rod connecting slider disposed in the lower mold of the folding bathtub forming, and the forming rod connecting slider is connected to the side hole forming rod.

[0009] In the above-mentioned children's folding bathtub mold, the lower mold for forming the folding bathtub is provided with a slanted sliding abutment, the inner side of which abuts against the outer side of the forming rod connecting slider.

[0010] In the aforementioned children's folding bathtub mold, the inclined sliding contact component includes an outer inclined sliding seat disposed within the lower mold of the folding bathtub forming process. The lower mold of the folding bathtub forming process is provided with an inclined sliding rod that passes through the outer inclined sliding seat. The outer inclined sliding seat and the inclined sliding rod are in sliding engagement.

[0011] In the aforementioned children's folding bathtub mold, the lower mold for forming the folding bathtub is provided with a limiting track, and the outer abutting inclined slide block and the forming rod connecting slider are respectively slidably engaged with the limiting track.

[0012] In the above-mentioned children's folding bathtub mold, the straight ejector includes an ejector fixing plate disposed below the lower mold of the folding bathtub forming mold, and the ejector fixing plate is provided with a plurality of straight ejector rods, which are staggered with the side hole forming rods.

[0013] In the above-mentioned children's folding bathtub mold, a fixed base plate is provided below the ejector fixing plate, and two anti-deviation irons are provided on the fixed base plate. The ejector fixing plate and the anti-deviation irons are slidably engaged.

[0014] In the above-mentioned children's folding bathtub mold, the injection molding diversion component includes an injection molding main board and an injection molding diversion plate disposed above the upper mold of the folding bathtub. The injection molding diversion plate is provided with a central injection tube and side injection tubes at the bottom.

[0015] In the aforementioned children's folding bathtub mold, the central injection tube is positioned opposite the central forming protrusion, and the side injection tube is positioned opposite the edge forming protrusion.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. The injection molding flow divider in this utility model ensures uniform distribution of injection molding material and improves the consistency of quality of each part of the bathtub; the precise matching of the molding protrusion and concave part ensures that the shape and size accuracy of the bathtub meet the standards; the side hole core pulling assembly realizes the molding of the side hole of the bathtub and core pulling before demolding, preventing the plastic at the side hole from sticking to the mold; the direct ejection part completes the demolding of the product, and the staggered arrangement avoids the conflict between the two and ensures a smooth production process.

[0018] 2. This utility model precisely matches the central forming protrusion with the central forming concave part, and the edge forming protrusion with the edge forming concave part, ensuring forming accuracy while cleverly designing an alternating working method for the side hole core-pulling assembly and the direct ejector. While ensuring the forming quality of the bathtub side holes, it greatly improves demolding efficiency and success rate, avoiding the problem of product damage during demolding using traditional molds.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a partial structural schematic diagram of the present invention.

[0022] Figure 3 This is a partial structural schematic diagram of another aspect of this utility model.

[0023] Figure 4 This is a schematic diagram of the upper mold for forming a folding bathtub.

[0024] In the diagram: 1. Folding bathtub forming lower mold; 2. Folding bathtub forming upper mold; 3. Injection manifold; 4. Center forming protrusion; 5. Edge forming protrusion; 6. Center forming recess; 7. Edge forming recess; 8. Side hole core-pulling assembly; 9. Straight ejector demolding component; 10. Side hole forming rod; 11. Forming rod connector; 12. Forming rod connecting slider; 13. Angled sliding abutment; 14. Outer abutment Angled slide seat; 15. Angled slide rod; 16. Limiting rail; 17. Ejection fixing plate; 18. Straight ejector rod; 19. Fixing base plate; 20. Anti-deviation iron; 21. Injection main plate; 22. Injection manifold; 23. Center injection tube; 24. Side injection tube. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1-4As shown, a children's folding bathtub mold includes a lower folding bathtub forming mold 1 and an upper folding bathtub forming mold 2. An injection molding flow divider 3 is provided above the upper folding bathtub forming mold 2. The lower folding bathtub forming mold 1 has a central forming protrusion 4 and an edge forming protrusion 5. The upper folding bathtub forming mold 2 has a central forming recess 6 and an edge forming recess 7. The central forming protrusion 4 and the central forming recess 6 are positioned and matched in shape. The edge forming protrusion 5 and the edge forming recess 7 are positioned and matched in shape. The lower folding bathtub forming mold 1 has a side hole core-pulling assembly 8 that can move along one end close to or away from the edge forming protrusion 5. The lower folding bathtub forming mold 1 has a straight ejector 9 below it. The side hole core-pulling assembly 8 and the straight ejector 9 are staggered.

[0027] In this embodiment, during the injection molding process, the injection material is evenly distributed to various parts of the mold cavity via the injection diverter 3. When the mold is closed, the central forming protrusion 4 and the central forming concave part 6, and the edge forming protrusion 5 and the edge forming concave part 7 precisely fit together to form cavities for shaping the central and edge shapes of the bathtub. The lower mold 1 for folding bathtubs is provided with a side hole core-pulling assembly 8, which can move along one end near or away from the edge forming protrusion 5 to form holes on the side of the bathtub. The straight ejector 9 below the lower mold 1 for folding bathtubs helps to eject the product during molding. The side hole core-pulling assembly 8 and the straight ejector 9 are staggered to avoid mutual interference. The injection flow divider 3 in this mold ensures uniform distribution of injection material and improves the consistency of quality of each part of the bathtub. The precise matching of the forming convex and concave parts ensures that the shape and size accuracy of the bathtub meet the standards. The side hole core-pulling assembly 8 realizes the forming of the side hole of the bathtub and the core-pulling before demolding, preventing the plastic at the side hole from sticking to the mold. The straight ejector 9 completes the demolding of the product. The staggered arrangement avoids the conflict between the two and ensures a smooth production process.

[0028] Combination Figure 1-4 As shown, the side hole core-pulling assembly 8 includes a plurality of side hole forming rods 10 disposed in the lower mold 1 for forming a folding bathtub. The lower mold 1 for forming a folding bathtub is provided with a forming rod connector 11, which is connected to the side hole forming rods 10.

[0029] Specifically, the side hole forming rod 10 is linked with the forming rod connector 11. During injection molding, the side hole forming rod 10, driven by the forming rod connector 11, extends into the corresponding position in the mold cavity to complete the forming of the side hole of the bathtub. Multiple side hole forming rods 10, in conjunction with the forming rod connector 11, can simultaneously and accurately form multiple side holes, improving molding efficiency and precision, and ensuring the consistency of the side hole size and position.

[0030] The forming rod connector 11 includes a forming rod connecting slider 12 disposed in the lower mold 1 for forming a folding bathtub, and the forming rod connecting slider 12 is connected to the side hole forming rod 10.

[0031] In this embodiment, when it is necessary to drive the side hole forming rod 10 to move, the forming rod connecting slider 12 is moved in the lower mold 1 of the folding bathtub forming by external driving force, thereby driving the side hole forming rod 10 to move in the required direction, completing the side hole forming and core pulling action. The forming rod connecting slider 12 provides a stable driving and connection method for the side hole forming rod 10, ensuring the smoothness and accuracy of the movement of the side hole forming rod 10, and improving the side hole forming quality.

[0032] Combination Figure 2 , Figure 3 As shown, the lower mold 1 for forming the folding bathtub is provided with a slanted sliding abutment 13. The inner side of the slanted sliding abutment 13 abuts against the outer side of the forming rod connecting slider 12. The slanted sliding abutment 13 includes an outer abutting slanted sliding seat 14 disposed in the lower mold 1 for forming the folding bathtub. The lower mold 1 for forming the folding bathtub is provided with a slanted sliding rod 15 that passes through the outer abutting slanted sliding seat 14. The outer abutting slanted sliding seat 14 and the slanted sliding rod 15 are slidably engaged.

[0033] In this embodiment, when the inclined slide rod 15 moves under the action of external driving force, it will push the outer abutting inclined slide block 14 to slide along the direction of the inclined slide rod 15 in the lower mold 1 of the folding bathtub forming, and then push the forming rod connecting slider 12 through the outer abutting inclined slide block 14. The sliding cooperation between the inclined slide rod 15 and the outer abutting inclined slide block 14 provides a stable guidance and power transmission method, making the movement of the inclined sliding abutting part 13 more stable and controllable, and ensuring the reliability of the side hole core pulling action.

[0034] Combination Figure 3 As shown, the lower mold 1 for forming the folding bathtub is provided with a limiting track 16, and the outer abutting inclined slide 14 and the forming rod connecting slider 12 are respectively slidably engaged with the limiting track 16.

[0035] In this embodiment, the limiting track 16 provides precise guidance for the outer abutment inclined slide block 14 and the forming rod connecting slider 12, ensuring the accuracy and stability of the side hole core pulling assembly 8, thereby improving the quality of side hole forming and core pulling.

[0036] The straight ejector demolding component 9 includes an ejector fixing plate 17 disposed below the lower mold 1 for forming a folding bathtub. The ejector fixing plate 17 is provided with a plurality of straight ejector rods 18, which are staggered with the side hole forming rods 10.

[0037] In this embodiment, after the product is injection molded and the side hole core-pulling assembly 8 completes the core pulling, the ejector fixing plate 17 moves upward under the action of external driving force, driving the straight ejector rod 18 to eject the molded bathtub from the lower mold 1 of the folding bathtub. The straight ejector rod 18 and the ejector fixing plate 17 cooperate to achieve efficient demolding. The staggered arrangement avoids interference with the side hole forming rod 10, ensuring the smooth demolding process and improving production efficiency.

[0038] Combination Figure 1-3 As shown, a fixed base plate 19 is provided below the ejector fixing plate 17, and two anti-deviation irons 20 are provided on the fixed base plate 19. The ejector fixing plate 17 and the anti-deviation irons 20 are slidably engaged.

[0039] In this embodiment, when the ejector plate 17 moves upward to demold, the anti-deviation iron 20 plays a guiding and anti-deviation role, ensuring that the ejector plate 17 always moves smoothly in the vertical direction.

[0040] Combination Figure 1-3 As shown, the injection molding diversion component 3 includes an injection molding main plate 21 and an injection molding diversion plate 22 disposed above the upper mold 2 for forming a folding bathtub. The injection molding diversion plate 22 is provided with a central injection molding tube 23 and a side injection molding tube 24 at its bottom.

[0041] In this embodiment, during injection molding, the injection material first enters the injection main board 21 and is then introduced into the injection manifold 22. The injection manifold 22 has a central injection tube 23 and side injection tubes 24 at its bottom. The central injection tube 23 is positioned opposite the central forming protrusion 4, and the side injection tubes 24 are positioned opposite the edge forming protrusion 5. The injection material is injected through the central injection tube 23 and the side injection tubes 24 into the mold cavity areas corresponding to the central forming protrusion 4 and the edge forming protrusion 5, respectively. The injection main board 21, the injection manifold 22, and the central and side injection tubes 23 cooperate to achieve uniform distribution of the injection material, ensuring that the central and edge parts of the bathtub are simultaneously and evenly filled with injection material, thus improving the consistency of quality across all parts of the bathtub.

[0042] Combination Figure 1-3 As shown, the central injection tube 23 is positioned opposite the central molding protrusion 4, and the side injection tube 24 is positioned opposite the edge molding protrusion 5.

[0043] In this embodiment, this direct alignment ensures that the injection molding material can accurately reach the corresponding molding area, avoiding material waste and uneven injection, and further ensuring the molding quality of the center and edges of the bathtub.

[0044] The working principle of this utility model is as follows:

[0045] In actual production, the lower mold 1 and upper mold 2 for forming the folding bathtub are installed on an injection molding machine. During injection, the injection material is introduced into the injection manifold 22 through the injection main plate 21. The central injection tube 23 and the side injection tubes 24 at the bottom of the injection manifold 22 inject the material into the positions corresponding to the central forming protrusion 4 and the edge forming protrusion 5, respectively, so that the material evenly fills the mold cavity, ensuring that the central and edge parts of the bathtub are formed simultaneously and with uniform quality.

[0046] During the molding process, the side hole forming rod 10, driven by the forming rod connector 11, shapes the hole on the side of the bathtub. After injection molding is completed, firstly, the inclined sliding contact 13 moves, the inclined sliding rod 15 pushes the outer abutting inclined sliding seat 14 to move, and the outer abutting inclined sliding seat 14 pushes the forming rod connecting slider 12, thereby driving the side hole forming rod 10 to be pulled out from the hole on the side of the bathtub. Since the side hole core pulling assembly 8 and the straight ejector demolding component 9 are staggered, after the side hole forming rod 10 is pulled out, the straight ejector demolding component 9 starts to work, and the straight ejector rod 18 on the ejector fixing plate 17 moves upward, ejecting the molded children's folding bathtub from the lower mold 1 of the folding bathtub forming mold, completing the demolding process.

[0047] 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 replace them, without departing from the spirit of this utility model.

[0048] Although this document frequently uses terms such as 1. Folding bathtub forming lower mold; 2. Folding bathtub forming upper mold; 3. Injection manifold; 4. Center forming protrusion; 5. Edge forming protrusion; 6. Center forming recess; 7. Edge forming recess; 8. Side hole core-pulling assembly; 9. Straight ejector demolding component; 10. Side hole forming rod; 11. Forming rod connector; 12. Forming rod connecting slider; 13. Angled sliding abutment; 14. Outer abutment Angled slide seat; 15. Angled sliding rod; 16. Limiting track; 17. Ejection fixing plate; 18. Straight ejector rod; 19. Fixing base plate; 20. Anti-deviation iron; 21. Injection main plate; 22. Injection manifold; 23. Center injection tube; 24. Side injection tube, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A children's folding bathtub mold, comprising a lower folding bathtub forming mold (1) and an upper folding bathtub forming mold (2), characterized in that, The upper mold (2) for forming the folding bathtub is provided with an injection flow divider (3). The lower mold (1) for forming the folding bathtub is provided with a central forming protrusion (4) and an edge forming protrusion (5). The upper mold (2) for forming the folding bathtub is provided with a central forming recess (6) and an edge forming recess (7). The central forming protrusion (4) and the central forming recess (6) are positioned and matched in shape. The edge forming protrusion (5) and the edge forming recess (7) are positioned and matched in shape. The lower mold (1) for forming the folding bathtub is provided with a side hole core-pulling assembly (8) that can move along one end close to or away from the edge forming protrusion (5). The lower mold (1) for forming the folding bathtub is provided with a straight ejector (9). The side hole core-pulling assembly (8) and the straight ejector (9) are staggered.

2. The children's folding bathtub mold according to claim 1, characterized in that, The side hole core-pulling assembly (8) includes a plurality of side hole forming rods (10) disposed in the lower mold (1) for forming a folding bathtub. The lower mold (1) for forming a folding bathtub is provided with a forming rod connector (11), and the forming rod connector (11) is connected to the side hole forming rods (10).

3. The children's folding bathtub mold according to claim 2, characterized in that, The forming rod connector (11) includes a forming rod connecting slider (12) disposed in the lower mold (1) of the folding bathtub forming, and the forming rod connecting slider (12) is connected to the side hole forming rod (10).

4. The children's folding bathtub mold according to claim 3, characterized in that, The lower mold (1) for forming the folding bathtub is provided with a slanted sliding abutment (13), and the inner side of the slanted sliding abutment (13) abuts against the outer side of the forming rod connecting slider (12).

5. The children's folding bathtub mold according to claim 4, characterized in that, The inclined sliding contact (13) includes an outer inclined sliding seat (14) disposed in the lower mold (1) for forming a folding bathtub. The lower mold (1) for forming a folding bathtub is provided with an inclined sliding rod (15) that passes through the outer inclined sliding seat (14). The outer inclined sliding seat (14) and the inclined sliding rod (15) are in sliding cooperation.

6. The children's folding bathtub mold according to claim 5, characterized in that, The lower mold (1) for forming the folding bathtub is provided with a limiting track (16), and the outer abutting inclined slide (14) and the forming rod connecting slider (12) are respectively slidably engaged with the limiting track (16).

7. The children's folding bathtub mold according to claim 6, characterized in that, The straight ejector (9) includes an ejector fixing plate (17) disposed below the folding bathtub forming lower mold (1), and the ejector fixing plate (17) is provided with a plurality of straight ejector rods (18), which are staggered with the side hole forming rods (10).

8. The children's folding bathtub mold according to claim 7, characterized in that, Below the ejector fixing plate (17) is a fixing base plate (19), and the fixing base plate (19) is provided with two anti-deviation irons (20), and the ejector fixing plate (17) and the anti-deviation irons (20) are slidably engaged.

9. The children's folding bathtub mold according to claim 8, characterized in that, The injection molding manifold (3) includes an injection molding main plate (21) and an injection molding manifold (22) disposed above the upper mold (2) of the folding bathtub. The injection molding manifold (22) has a central injection tube (23) and a side injection tube (24) at its bottom.

10. The children's folding bathtub mold according to claim 9, characterized in that, The central injection tube (23) is positioned opposite the central molding protrusion (4), and the side injection tube (24) is positioned opposite the edge molding protrusion (5).

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