Folding bathtub main body injection mold

Abstract

The utility model provides an injection mold for a folding bathtub main body, and belongs to the technical field of molds. The mold comprises an upper mold plate and a lower mold plate, a forming insert with the same shape as the inner surface of the folding bathtub is arranged on the lower mold plate in a protruding mode, and a bathtub forming groove with the same shape as the outer surface of the folding bathtub is formed in the upper mold plate in an inward concave mode. And a soft rubber strip forming part is formed between the circumferential surface of the side part of the forming insert and the circumferential surface of the inner side of the bathtub forming groove. The bathtub bottom foot pad forming structure can form a foot pad on the bottom face in the bathtub bottom component, the multi-point glue feeding mechanism can synchronously feed glue to the soft glue strip forming part and the bathtub bottom foot pad forming structure at the same time during injection molding, and the multi-point glue feeding mechanism can directly feed glue to the soft glue strip forming part. And a glue inlet runner does not need to be arranged in the mold, so that the loss of glue liquid at a path in the mold can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an injection mold for a foldable bathtub body. Background Art

[0002] A foldable bathtub refers to a bathing product that can be folded by connecting the bathtub top and bathtub bottom parts with soft rubber strips. Due to the soft nature of the soft rubber strips, the bathtub can be folded quickly without disassembly. This soft rubber strip is molded by injection molding. During injection molding, the bathtub top and bathtub bottom parts are placed in a mold, and the bathtub top and bathtub bottom parts are connected by injecting glue to make the three connected as one. However, during injection molding, the mold in the prior art will have the injection liquid flow through the glue feed channel in the mold for a certain distance before entering the molding cavity, which will cause waste of injection liquid.

[0003] For example, a Chinese patent discloses a cavity exhaust mechanism for secondary molding of a foldable bathtub mold [application number: 201921680904.8], which includes a fixed mold plate and a movable mold plate, wherein the fixed mold plate is provided with a circle of two-sided forming rings, the inner side of the two-sided forming rings is provided with a first forming surface recessed in the fixed mold plate, and the outer side of the two-sided forming rings is provided with a circle of second forming surfaces recessed in the fixed mold plate. When the molds are closed, the ends of the two-sided forming rings abut against the movable mold plate, so that the first forming surface and the second forming surface are independent of each other, a plurality of first exhaust holes are penetrated in the two-sided forming rings, and a circle of inner basin edge forming surfaces protruding from the fixed mold plate are also connected to the outer side of the second forming surface, and a circle of outer basin edge forming surfaces corresponding to the inner basin edge forming surfaces and recessed in the movable mold plate are provided on the movable mold plate, and the outer basin edge forming surfaces are connected with a plurality of second exhaust holes penetrated through the movable mold plate, but the above-mentioned problems also exist. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a foldable bathtub main body injection mold.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A foldable bathtub main body injection mold comprises an upper template and a lower template, wherein the lower template is protrudingly provided with a molding insert with the same shape as the inner surface of the foldable bathtub, and the upper template is recessed inwardly provided with a bathtub molding groove with the same shape as the outer surface of the foldable bathtub, a soft rubber strip molding part is formed between the circumferential surface of the side of the molding insert and the circumferential surface inside the bathtub molding groove, a bathtub bottom component and a bathtub top component are respectively provided on the upper and lower sides of the molding insert, the bathtub bottom component and the bathtub top component are respectively arranged on the upper and lower sides of the soft rubber strip molding part, a basin bottom foot pad molding structure is also provided between the bathtub bottom component and the top surface of the molding insert, and a multi-point glue feeding mechanism is provided on the upper side of the upper template for feeding glue into the soft rubber strip molding part and the basin bottom foot pad molding structure.

[0007] In the above-mentioned folding bathtub main body injection mold, the basin bottom foot pad molding structure includes a foot pad molding part that is recessed inwardly and arranged on the bathtub bottom component, and a massage rib molding structure is also provided at the connection between the top surface of the molding insert and the foot pad molding part.

[0008] In the above-mentioned injection mold of the foldable bathtub body, the massage rib molding structure includes a plurality of massage rib molding grooves recessed inwardly and arranged on the top of the molding insert, and the plurality of massage rib molding grooves are arranged in parallel.

[0009] In the above-mentioned folding bathtub main body injection mold, the multi-point glue feeding mechanism includes a horizontally arranged No. 1 injection molding plate, the middle position of which is connected to a No. 2 injection molding plate, the No. 2 injection molding plate is fixedly connected to a vertically arranged No. 1 injection molding tube and the bottom of which is connected to the foot pad molding part through the glue feeding port on the bathtub bottom part, the No. 1 injection molding plate is also connected to an inclined side glue feeding plate, and the side glue feeding plate is provided with a No. 2 injection molding tube whose end is connected to the soft rubber strip molding part.

[0010] In the above-mentioned folding bathtub main body injection mold, two side-feeding plastic plates are provided and are respectively located on both sides of the No. 1 injection plate.

[0011] In the above-mentioned folding bathtub main body injection mold, the No. 2 injection tube is vertically arranged to the side rubber inlet plate.

[0012] In the above-mentioned folding bathtub main body injection mold, the side-feeding rubber plate is detachably connected to the No. 1 injection plate through a plurality of bolts.

[0013] In the above-mentioned folding bathtub main body injection mold, the No. 2 injection molding plate and the No. 1 injection molding plate are integrally formed.

[0014] In the above-mentioned injection mold for the foldable bathtub body, the upper and lower sides of the soft rubber strip molding part are respectively provided with easy-folding structures.

[0015] In the above-mentioned foldable bathtub main body injection mold, the easily foldable structure includes a rubber strip concave molding groove which is recessed inwardly on the circumferential surface of the side of the molding insert and a rubber strip concave molding block which is protruding on the circumferential surface inside the bathtub molding groove. The rubber strip concave molding groove and the rubber strip concave molding block are arranged correspondingly and have a ring-shaped cross-section.

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

[0017] 1. The basin bottom foot pad molding structure can form a foot pad on the bottom surface of the bathtub bottom component. The multi-point glue feeding mechanism can simultaneously feed glue to the soft rubber strip molding part and the basin bottom foot pad molding structure during injection molding, and the multi-point glue feeding mechanism can directly feed glue to the soft rubber strip molding part. There is no need to set a glue feeding flow channel in the mold, thereby reducing the loss of glue at the path in the mold.

[0018] 2. The cavity between the foot pad forming part and the top surface of the forming insert can form a foot pad forming cavity. After the glue is injected, the foot pad can be formed on the bottom surface of the bathtub bottom component. The massage rib forming groove can form ribs on the foot pad for massage, anti-slip and cleaning.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the upper template;

[0023] Figure 4 It is a structural diagram of the lower template.

[0024] In the figure, an upper template 1, a lower template 2, a molding insert 3, a bathtub molding groove 4, a soft rubber strip molding part 5, a bathtub bottom component 6, a bathtub top component 7, a bathtub bottom foot pad molding structure 8, a multi-point glue feeding mechanism 9, a foot pad molding part 10, a massage rib molding structure 11, a massage rib molding groove 12, a No. 1 injection molding plate 13, a No. 2 injection molding plate 14, a No. 1 injection molding tube 15, a side-feeding rubber plate 16, a No. 2 injection molding tube 17, an easily foldable structure 18, a rubber strip concave molding groove 19, and a rubber strip concave molding block 20. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 4As shown, a foldable bathtub main body injection mold comprises an upper template 1 and a lower template 2, wherein the lower template 2 is protrudingly provided with a molding insert 3 having the same shape as the inner surface of the foldable bathtub, and the upper template 1 is recessed with a bathtub molding groove 4 having the same shape as the outer surface of the foldable bathtub, a soft rubber strip molding part 5 is formed between the circumferential surface of the side of the molding insert 3 and the circumferential surface inside the bathtub molding groove 4, a bathtub bottom part 6 and a bathtub top part 7 are respectively provided on the upper and lower sides of the molding insert 3, the bathtub bottom part 6 and the bathtub top part 7 are respectively arranged on the upper and lower sides of the soft rubber strip molding part 5, a basin bottom foot pad molding structure 8 is also provided between the bathtub bottom part 6 and the top surface of the molding insert 3, and a multi-point glue feeding mechanism 9 is provided on the upper side of the upper template 1 for feeding glue into the soft rubber strip molding part 5 and the basin bottom foot pad molding structure 8.

[0026] In the utility model, the basin bottom foot pad molding structure 8 can form a foot pad on the bottom surface of the bathtub bottom component, and the multi-point glue feeding mechanism 9 can simultaneously feed glue to the soft rubber strip molding part 5 and the basin bottom foot pad molding structure 8 during injection molding, and the multi-point glue feeding mechanism 9 can directly feed glue to the soft rubber strip molding part 5, without setting a glue feeding flow channel in the mold, thereby reducing the loss of glue at the path in the mold.

[0027] Specifically, the basin bottom foot pad forming structure 8 includes a foot pad forming part 10 that is recessed inwardly and arranged on the bathtub basin bottom component 6, and a massage rib forming structure 11 is also provided at the connection between the top surface of the molding insert 3 and the foot pad forming part 10. The cavity between the foot pad forming part 10 and the top surface of the molding insert 3 can form a foot pad forming cavity, and after the glue is injected, a foot pad can be formed on the bottom surface of the bathtub basin bottom component.

[0028] Preferably, the massage rib forming structure 11 includes a plurality of massage rib forming grooves 12 recessed inwardly and arranged on the top of the forming insert 3, and the plurality of massage rib forming grooves 12 are arranged in parallel. The massage rib forming grooves 12 can form ribs for massage, anti-slip and cleaning on the foot pad.

[0029] Specifically, the multi-point glue feeding mechanism 9 includes a horizontally arranged No. 1 injection molding plate 13, and a No. 2 injection molding plate 14 is connected to the middle position of the No. 1 injection molding plate 13. The No. 2 injection molding plate 14 is fixedly connected with a vertically arranged No. 1 injection molding tube 15 and the bottom is connected to the foot pad molding part 10 through the glue feeding port on the bathtub bottom part 6. The No. 1 injection molding plate 13 is also connected to an inclined side glue feeding plate 16, and the side glue feeding plate 16 is provided with a No. 2 injection molding tube 17 whose end is connected to the soft rubber strip molding part 5. Glue can be injected into the foot pad molding cavity between the foot pad molding part 10 and the top surface of the molding insert 3 through the No. 1 injection molding plate 13, the No. 2 injection molding plate and the No. 1 injection molding tube. Glue can be injected into the soft rubber strip molding part 5 through the No. 1 injection molding plate 13, the side glue feeding plate 16 and the No. 2 injection molding tube 17. By setting the side glue feeding plate 16 and the No. 2 injection molding tube, glue can be directly injected into the soft rubber strip molding part 5. There is no need to set a glue feeding channel in the mold, thereby reducing the loss of glue at the path in the mold.

[0030] Preferably, two side-injection plates 16 are provided and are respectively located on both sides of the first injection plate 13, and the second injection tube 17 is arranged perpendicular to the side-injection plate 16. Providing two side-injection plates 16 can improve the injection efficiency.

[0031] Preferably, the side-inlet rubber plate 16 is detachably connected to the first injection molding plate 13 by a plurality of bolts, so that it can be easily disassembled and repaired.

[0032] Preferably, the second injection molding plate 14 and the first injection molding plate 13 are integrally formed to reduce the number of assembly steps.

[0033] Preferably, combined Figure 3 and Figure 4 As shown, the upper and lower sides of the soft rubber strip forming part 5 are respectively provided with an easy-folding structure 18, which includes a rubber strip concave forming groove 19 which is recessed inwardly and arranged on the circumferential surface of the side of the forming insert 3, and a rubber strip concave forming block 20 which is protruding and arranged on the circumferential surface inside the bathtub forming groove 4. The rubber strip concave forming groove 19 and the rubber strip concave forming block 20 are arranged correspondingly and have an annular cross section. The rubber strip concave forming groove 19 cooperates with the rubber strip concave forming block 20 to form an inwardly concave annular area on the upper and lower sides of the formed rubber strip, which can facilitate the folding of the bathtub after the rubber strip is bent.

[0034] The working principle of the utility model is as follows: the basin bottom foot pad forming structure 8 can form a foot pad on the bottom surface of the basin bottom component of the bathtub, and the multi-point glue feeding mechanism 9 can simultaneously feed glue to the soft rubber strip forming part 5 and the basin bottom foot pad forming structure 8 during injection molding, and the multi-point glue feeding mechanism 9 can directly feed glue to the soft rubber strip forming part 5, without setting a glue feeding flow channel in the mold, thereby reducing the loss of glue at the path in the mold;

[0035] The cavity between the foot pad forming part 10 and the top surface of the forming insert 3 can form a foot pad forming cavity, and after the glue is injected, the foot pad can be formed on the bottom surface of the bathtub bottom component, and the massage rib forming groove 12 can form ribs on the foot pad for massage, anti-slip and cleaning;

[0036] Through the No. 1 injection molding plate 13, the No. 2 injection molding plate and the No. 1 injection molding tube, glue can be injected into the foot pad molding cavity between the foot pad molding part 10 and the top surface of the molding insert 3. Through the No. 1 injection molding plate 13, the side injection molding plate 16 and the No. 2 injection molding tube 17, glue can be injected into the soft rubber strip molding part 5. By setting the side injection molding plate 16 and the No. 2 injection molding tube, glue can be directly injected into the soft rubber strip molding part 5, without setting a glue injection flow channel in the mold, so as to reduce the loss of glue in the path in the mold. The No. 2 injection molding tube 17 is arranged vertically with the side injection molding plate 16. Setting two side injection molding plates 16 can improve the injection efficiency. The rubber strip concave molding groove 19 cooperates with the rubber strip concave molding block 20 to form a concave annular area on the upper and lower sides of the molded rubber strip, which can facilitate the folding of the bathtub after the rubber strip is bent.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0038] Although this article makes more frequent use of the upper template 1, lower template 2, molding insert 3, bathtub molding groove 4, soft rubber strip molding part 5, bathtub bottom component 6, bathtub top component 7, bathtub bottom foot pad molding structure 8, multi-point glue feeding mechanism 9, foot pad molding part 10, massage rib molding structure 11, massage rib molding groove 12, No. 1 injection molding plate 13, No. 2 injection molding plate 14, No. 1 injection molding tube 15, side injection rubber plate 16, No. 2 injection molding tube 17, easy-to-fold structure 18, rubber strip recess molding groove 19, rubber strip recess molding block 20, etc., these terms are used only to more conveniently describe and explain the essence of the present utility model; interpreting them as any additional restrictions is contrary to the spirit of the present utility model.

Claims

1. A foldable bathtub body injection mold, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that: The lower template (2) is provided with a protruding molding insert (3) having the same shape as the inner surface of the foldable bathtub, and the upper template (1) is provided with a bathtub molding groove (4) having the same shape as the outer surface of the foldable bathtub. A soft rubber strip molding part (5) is formed between the circumferential surface of the side of the molding insert (3) and the circumferential surface of the inner side of the bathtub molding groove (4). The upper and lower sides of the molding insert (3) are respectively provided with a bathtub bottom part (6) and a bathtub top part (7). The bathtub bottom part (6) and the bathtub top part (7) are respectively arranged on the upper and lower sides of the soft rubber strip molding part (5). A basin foot pad molding structure (8) is also provided between the bathtub bottom part (6) and the top surface of the molding insert (3). The upper side of the upper template (1) is provided with a multi-point glue injection mechanism (9) that can inject glue into the soft rubber strip molding part (5) and the basin foot pad molding structure (8).

2. The foldable bathtub main body injection mold according to claim 1, characterized in that: The basin bottom foot pad forming structure (8) comprises a foot pad forming portion (10) which is recessed inwardly and arranged on the bathtub basin bottom component (6), and a massage rib forming structure (11) is also provided at the connection between the top surface of the forming insert (3) and the foot pad forming portion (10).

3. The foldable bathtub main body injection mold according to claim 2, characterized in that: The massage rib forming structure (11) comprises a plurality of massage rib forming grooves (12) which are recessed inwardly and arranged on the top of the forming insert (3); the plurality of massage rib forming grooves (12) are arranged in parallel.

4. The foldable bathtub main body injection mold according to claim 3, characterized in that: The multi-point glue feeding mechanism (9) includes a horizontally arranged No. 1 injection molding plate (13), the middle position of which is connected to a No. 2 injection molding plate (14), the No. 2 injection molding plate (14) is fixedly connected to a vertically arranged No. 1 injection molding tube (15) whose bottom is connected to the foot pad molding part (10) through a glue feeding port on the bathtub bottom component (6), the No. 1 injection molding plate (13) is also connected to an inclined side glue feeding plate (16), and the side glue feeding plate (16) is provided with a No. 2 injection molding tube (17) whose end is connected to the soft rubber strip molding part (5).

5. The foldable bathtub main body injection mold according to claim 4, characterized in that: The side-injection plates (16) are provided with two and are respectively located on both sides of the first injection molding plate (13).

6. The foldable bathtub main body injection mold according to claim 5, characterized in that: The No. 2 injection molding pipe (17) is vertically arranged with respect to the side-inlet rubber plate (16).

7. The foldable bathtub main body injection mold according to claim 5, characterized in that: The side-injection rubber plate (16) is detachably connected to the first injection molding plate (13) via a plurality of bolts.

8. The foldable bathtub main body injection mold according to claim 4, characterized in that: The second injection molding plate (14) and the first injection molding plate (13) are integrally formed.

9. The foldable bathtub main body injection mold according to claim 1, characterized in that: The upper and lower sides of the soft rubber strip forming part (5) are respectively provided with easy-folding structures (18).

10. The foldable bathtub main body injection mold according to claim 9, characterized in that: The easily foldable structure (18) comprises a rubber strip concave forming groove (19) which is inwardly recessed and arranged on the circumferential surface of the side of the forming insert (3) and a rubber strip concave forming block (20) which is protruding and arranged on the circumferential surface inside the bathtub forming groove (4). The rubber strip concave forming groove (19) and the rubber strip concave forming block (20) are arranged correspondingly and have a ring-shaped cross-section.

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