A soft material integrated injection molding and cutting device

Abstract

The present invention relates to a soft material integrated injection molding and cutting device, comprising a frame and a mold body, wherein the frame is provided with a material holder for placing the soft material. The mold body is arranged on the frame, and the mold body comprises a front mold assembly and a rear mold assembly, wherein the front mold assembly comprises a front mold plate, on which a front mold insert is provided, and on which a cutting knife insert is provided; the rear mold assembly comprises a rear mold plate, on which a rear mold insert is provided, and when the front mold assembly and the rear mold assembly are in the mold-clamping state, the front mold insert and the rear mold insert cooperate to form an injection cavity; the rear mold assembly further comprises an ejector component, and the ejector component comprises an ejector rod for ejecting the molded product in the injection cavity and an ejector plate for pushing the ejector rod to move. The soft material integrated injection molding and cutting device of the present invention can realize direct integrated injection molding and cutting operations of soft materials on the same equipment, is simple and convenient to operate, and is conducive to reducing equipment investment, improving operating efficiency, and improving economic benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding and cutting equipment, in particular to an integrated injection molding and cutting device for soft materials. Background Art

[0002] In traditional two-shot molding, one part is typically molded first, then placed into the mold for another part and molded again to achieve the desired appearance and finish. However, this traditional injection molding process requires multiple steps, molds, and equipment, resulting in complex operations, low efficiency, and high processing costs.

[0003] Furthermore, traditional mold equipment struggles with secondary injection molding on soft materials like hanging cloth and tape, as the cloth lacks the support required by the cutter, easily causing tearing or product deformation during the cutting process. The typical process involves injection molding and cutting the soft material, or directly preparing the corresponding shape, placing it into a specific mold, and then injection molding another material onto it, bonding the two materials together. This increases the number of injection and cutting molds, resulting in high site space utilization, high costs, and low efficiency. Summary of the Invention

[0004] Based on this, it is necessary to provide a soft material integrated injection molding and cutting device to address the above problems, which can realize direct integrated injection molding and cutting operations of soft materials on the same equipment. The operation is simple and convenient, which is conducive to reducing equipment investment, improving operating efficiency and improving economic benefits.

[0005] The technical solution is as follows:

[0006] On the one hand, a soft material integrated injection molding and cutting device is provided, comprising:

[0007] A frame, wherein the frame is provided with a material support for placing soft materials;

[0008] A mold body, wherein the mold body is arranged on the frame, and the mold body includes a front mold assembly and a rear mold assembly, wherein the front mold assembly includes a front mold plate, on which a front mold insert is provided, and on which a cutter insert is provided; the rear mold assembly includes a rear mold plate, on which a rear mold insert is provided, and when the front mold assembly and the rear mold assembly are in a closed mold state, the front mold insert and the rear mold insert cooperate to form an injection cavity; the rear mold assembly also includes an ejector component, and the ejector component includes an ejector rod for ejecting the injection molded product in the injection cavity and an ejector plate for pushing the ejector rod to move.

[0009] The technical solution is further described below:

[0010] In one embodiment, an overflow groove is provided on the edge of the cutting insert, and when the front mold insert is matched with the rear mold insert, the overflow groove is connected to the injection cavity.

[0011] In one embodiment, the soft material is hanging cloth, and the material support includes a roll support for placing the hanging cloth roll for processing and a waste support for collecting the processed hanging cloth waste.

[0012] In one embodiment, the material support further includes a connecting support, and the connecting support is arranged between the roll support and the waste support.

[0013] In one embodiment, the front mold assembly is also provided with a heat insulation plate, a panel and a runner plate in sequence. The front mold plate is arranged on the side of the runner plate away from the panel. A hot runner is provided in the runner plate, and the hot runner is connected to the injection cavity.

[0014] In one embodiment, a cold runner is provided on the front template, and the cold runner is arranged between the hot runner and the injection cavity.

[0015] In one embodiment, a driving screw is provided on a side of the front template facing the rear template, and the front template is slidably connected to the driving screw.

[0016] In one embodiment, the rear mold assembly also includes a base plate, and the base plate, ejector member and rear template are arranged in sequence, the ejector plate is arranged toward one side of the base plate, and the ejector rod is arranged toward the rear template; the base plate and the rear template are spaced by square iron, and the ejector member is movably arranged between the base plate and the rear template.

[0017] In one embodiment, the front mold assembly is provided with a buckle base component, and the rear mold assembly is provided with a buckle base plate that buckles with the buckle base component.

[0018] In one embodiment, a mechanical opener and closer is further provided on the mold body, and the mechanical opener and closer includes a lock core and a lock seat that cooperate and lock with each other, the lock core is arranged on the front mold assembly, and the lock seat is arranged on the rear mold.

[0019] Beneficial effects of the present invention:

[0020] Compared to the prior art, the present invention provides a device for integrated injection molding and cutting of soft materials. The soft material being processed is placed on a material support. Before the front and rear mold assemblies of the mold assembly are closed, the soft material is removed from the material support and placed between the front and rear mold assemblies. When the front and rear mold assemblies are closed, the front and rear mold inserts extrude the hanging cloth into a shape corresponding to the injection cavity. Another material in a molten state is then injected into the injection cavity, thereby integrating the other material with the soft material, i.e., the aforementioned hanging cloth, to form an injection molded product. Finally, the front and rear mold assemblies are opened, and the ejector plate pushes the ejector rod, which squeezes the injection molded product in the injection cavity toward the cutter insert. The cutter insert then cuts the injection molded product from the hanging cloth into a specific shape. Through the above operation, direct one-piece injection molding and cutting of two soft materials can be achieved on the same mold. The operation is simple and convenient, can ensure the bonding strength between the two materials, ensure product quality, and is conducive to reducing equipment investment, improving operating efficiency, and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic structural diagram of a soft material integrated injection molding and cutting device in one embodiment;

[0024] Figure 2 Schematic diagram of the mold body in a mold closing state in one embodiment;

[0025] Figure 3 Schematic diagram of the structure of a mold body in an open mold state in one embodiment;

[0026] Figure 4 Schematic diagram of the structure of a mold body in an open mold state in one embodiment;

[0027] Figure 5 Schematic diagram of the structure of a mold body in an open mold state in one embodiment;

[0028] Figure 6 Schematic diagram of the structure of the front mold assembly in one embodiment;

[0029] Figure 7 A schematic structural diagram of a rear mold assembly in one embodiment;

[0030] Figure 8 A schematic structural diagram of runner injection molding in one embodiment;

[0031] Figure 9 This is a schematic structural diagram of the injection molding of a product in one embodiment.

[0032] Description of reference numerals:

[0033] 100, front mold assembly; 110, front mold plate; 120, front mold insert; 130, cutter insert; 131, overflow groove; 140, heat shield; 150, panel; 160, runner plate; 161, hot runner; 170, cold runner; 180, plug screw; 200, rear mold assembly; 210, rear mold plate; 220, rear mold insert; 230, ejector component; 231, ejector Rod; 232, ejector plate; 240, bottom plate; 250, square iron; 300, injection molding cavity; 410, buckle base; 420, buckle base plate; 510, lock cylinder; 520, lock seat; 600, injection molding product; 700, hanging cloth; 710, hanging cloth reel; 720, hanging cloth waste; 800, frame; 910, reel bracket; 920, waste bracket; 930, connecting bracket. DETAILED DESCRIPTION

[0034] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] In the description of the present invention, it should be noted that the terms "inner," "outer," "upper," "lower," and "horizontal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] In the present invention, unless otherwise specified or limited, the terms "mounted," "connected," "fixed," "closely attached," etc. should be understood broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] like Figures 1 to 9 As shown, in one embodiment, a soft material integrated injection molding and cutting device is provided, comprising a frame 800 and a mold body. The frame 800 is provided with a material holder for placing the soft material. The mold body is mounted on the frame 800 and includes a front mold assembly 100 and a rear mold assembly 200. The front mold assembly 100 includes a front plate 110, on which a front mold insert 120 is provided, and a cutter insert 130 is provided on the front mold insert 120. The rear mold assembly 200 includes a rear plate 210, on which a rear mold insert 220 is provided. When the front mold assembly 100 and the rear mold assembly 200 are in the closed state, the front mold insert 120 and the rear mold insert 220 cooperate to form an injection cavity 300. The rear mold assembly 200 further includes an ejector member 230 . The ejector member 230 includes an ejector rod 231 for ejecting the injection molded product 600 in the injection cavity 300 and an ejector plate 232 for pushing the ejector rod 231 to move.

[0038] In this embodiment, a soft material to be processed is placed on a material support. Before the front mold assembly 100 and the rear mold assembly 200 are closed, the soft material, for example, a hanging cloth 700, is removed from the material support and placed between the front mold assembly 100 and the rear mold assembly 200. When the front mold assembly 100 and the rear mold assembly 200 are closed, the front mold insert 120 and the rear mold insert 220 extrude the hanging cloth 700 into a shape corresponding to the injection cavity 300. Then, another material in a molten state is injected into the injection cavity 300, thereby forming an integral part of the other material and the soft material, i.e., the hanging cloth 700, to form the injection molded product 600. Finally, the front mold assembly 100 and the rear mold assembly 200 are opened, and the ejector plate 232 pushes the ejector rod 231, causing the ejector rod 231 to squeeze the molded product 600 in the injection cavity 300 toward the cutter insert 130. The cutter insert 130 then cuts the molded product 600 from the hanging cloth 700 into a specific shape. Through this operation, two soft materials can be directly injection molded and cut in one piece in the same mold. This is simple and convenient, ensuring the bonding strength between the two materials and product quality. It also helps reduce equipment investment, improve operating efficiency, and increase economic benefits.

[0039] In one embodiment, the material support includes a roll support 910 for placing the processed hanging cloth roll 710 and a waste support 920 for collecting the processed hanging cloth waste 720. Furthermore, the material support includes a connecting support 930, which is positioned between the roll support 910 and the waste support 920 to facilitate the connection and turning of the hanging cloth 700. In practice, multiple connecting supports 930 can be provided to allow for flexible design of the position between the hanging cloth roll 710 and the hanging cloth waste 720, thereby avoiding excessive operating space.

[0040] Specifically, if Figure 1 As shown, the hanging cloth reel 710 is arranged above the frame so that the operator can load the material and observe the material usage progress in real time, and the hanging cloth waste 720 is arranged below the inside of the frame so as not to occupy too much operating space.

[0041] In this embodiment, the material support is provided with a roller (not shown) to facilitate winding of the hanging cloth 700 or placement of the roll of hanging cloth 700. Of course, outside of this embodiment, the soft material processed is not limited to the hanging cloth 700; other soft materials such as plastic sheeting may also be used. Accordingly, the structure of the material support may also be designed based on the corresponding soft material, and such designs fall within the scope of protection of the present invention.

[0042] In one embodiment, the edge of the cutter insert 130 is provided with an overflow groove 131. When the front mold insert 120 and the rear mold insert 220 are mated, the overflow groove 131 communicates with the injection cavity 300. During cutting after injection molding, because the molded product 600 is molded onto the soft and thin hanging cloth 700, cutting directly on the hanging cloth 700 is difficult, which can easily lead to unstable shapes in the cut product and affect the overall product quality. By providing the overflow groove 131 on the edge of the cutter insert 130, after injection molding, the actual area of ​​the molded product 600 is larger than the cutting area of ​​the cutter on the cutter insert 130. That is, during cutting, the cutter cuts on the injected rubber, which is much harder than the hanging cloth 700. This greatly reduces the difficulty of cutting and effectively ensures the quality of the cut product.

[0043] In one embodiment, the front mold assembly 100 is further provided with a heat shield 140, a face plate 150, and a runner plate 160 in sequence. The front mold plate 110 is disposed on the side of the runner plate 160 facing away from the face plate 150. Specifically, a hot runner 161 is provided within the runner plate 160. The hot runner 161 communicates with the injection cavity 300, and material is injected into the injection cavity 300 through the hot runner 161.

[0044] Furthermore, the front mold plate 110 is provided with a cold runner 170, which is positioned between the hot runner 161 and the injection cavity 300. The combined hot runner 161 and cold runner 170 ensures that the material in the runner and gate remains molten, ensuring smooth material feeding. The cooled material then solidifies and adheres to the hanging cloth 700 through the cold runner 170, ensuring that excess material on the cold runner 170 provides support during cutting, ensuring smooth cutting. In actual application, the overflow groove 131 is connected to the cold runner 170, providing support for cutting after solidification.

[0045] Furthermore, multiple front mold inserts 120 can be provided, and corresponding rear mold inserts 220 can be provided, that is, multiple injection molding cavities 300 can be provided, so that multiple products can be injection molded and cut simultaneously, thereby improving processing efficiency. In actual operation, four front mold inserts 120 are provided, and each two front mold inserts 120 are connected by a cold runner 170 and a hot runner 161. After the material flows into the cold runner 170 through the hot runner 161, it is divided into two injection molding cavities 300. Of course, the present invention does not specifically limit the number of injection molding cavities 300, nor the number and arrangement of the cold runners 170 and hot runners 161. As long as the material and the hanging cloth 700 can be injection molded and cut as one piece, such a design falls within the scope of protection of the present invention.

[0046] In one embodiment, a punch screw 180 is provided on the side of the front template 110 facing the rear template 210, and the front template 110 is slidably connected to the punch screw 180. Figure 3 As shown, when the mold is opened, the front template 110 remains in contact with the rear template 210, and the heat insulation plate 140, the panel 150 and the flow channel plate 160 are moved relative to the front template 110 toward the side away from the rear template 210 through the screws 180, reserving discharge space for the cut product.

[0047] In one embodiment, the rear mold assembly 200 further includes a bottom plate 240, the bottom plate 240, the ejector member 230, and the rear mold plate 210 are sequentially arranged, the ejector plate 232 is arranged toward one side of the bottom plate 240, and the ejector rod 231 is arranged toward the rear mold plate 210. Specifically, the bottom plate 240 and the rear mold plate 210 are separated by a square iron 250, and the ejector member 230 is movably arranged between the bottom plate 240 and the rear mold plate 210. Figure 4 As shown, when the mold is opened, the ejector plate 232 drives the ejector rod 231 to move toward the rear template 210, and the ejector rod 231 squeezes the injection-molded injection product 600 toward the cutting insert 130. The cut injection product 600 passes through the front template 110 and falls off from the discharge space between the front template 110 and the runner plate 160, completing the cutting and discharging.

[0048] like Figure 5 As shown, after the cutting is completed, the front template 110 and the rear template 210 are separated, and the hanging cloth 700 is moved so that the new hanging cloth 700 enters between the front template 110 and the rear template 210, and the above injection molding and cutting operations are repeated.

[0049] In one embodiment, a buckle base member 410 is provided on the front mold assembly 100, and a buckle base member 420 that is buckled and matched with the buckle base member 410 is provided on the rear mold assembly 200, so as to achieve the fastening and fixation of the front mold assembly 100 and the rear mold assembly 200 and ensure the stability of the injection molding.

[0050] Furthermore, the mold body is equipped with a mechanical shutter, comprising a locking core 510 and a locking seat 520 that cooperate and lock together. Lock core 510 is mounted on front mold assembly 100, while locking seat 520 is mounted on rear mold assembly. The mechanical shutter further locks front mold assembly 100 and rear mold assembly 200, ensuring the stability of the entire mold body during the injection molding process and guaranteeing injection molding quality.

[0051] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A soft material integrated injection molding and cutting device, characterized in that: include: A machine frame (800), wherein the machine frame (800) is provided with a material support for placing soft materials; A mold body is arranged on the frame (800), and the mold body includes a front mold assembly (100) and a rear mold assembly (200), wherein the front mold assembly (100) includes a front mold plate (110), a front mold insert (120) is provided on the front mold plate (110), and a cutting knife insert (130) is provided on the front mold insert (120); the rear mold assembly (200) includes a rear mold plate (210), and a rear mold insert (220) is provided on the rear mold plate (210). 0), when the front mold assembly (100) and the rear mold assembly (200) are in a mold-clamping state, the front mold insert (120) and the rear mold insert (220) cooperate to form an injection molding cavity (300); the rear mold assembly (200) further includes an ejector component (230), and the ejector component (230) includes an ejector rod (231) for ejecting the injection molded product (600) in the injection molding cavity (300) and an ejector plate (232) for pushing the ejector rod (231) to move; An overflow groove (131) is provided on the edge of the cutting tool insert (130); when the front mold insert (120) and the rear mold insert (220) are matched, the overflow groove (131) is communicated with the injection molding cavity (300).

2. A soft material integrated injection molding and cutting device according to claim 1, characterized in that: The soft material is a hanging cloth (700), and the material support comprises a roll support (910) for placing a hanging cloth roll (710) to be processed, and a waste support (920) for collecting processed hanging cloth waste (720).

3. The soft material integrated injection molding and cutting device according to claim 2, characterized in that: The material support further comprises a connecting support (930), wherein the connecting support (930) is arranged between the reel support (910) and the waste support (920).

4. The soft material integrated injection molding and cutting device according to claim 1, characterized in that: The front mold assembly (100) is also provided with a heat insulation plate (140), a panel (150) and a runner plate (160) in sequence. The front mold plate (110) is arranged on a side of the runner plate (160) away from the panel (150). A hot runner (161) is provided in the runner plate (160), and the hot runner (161) is connected to the injection cavity (300).

5. The soft material integrated injection molding and cutting device according to claim 4, characterized in that: A cold runner (170) is provided on the front template (110), and the cold runner (170) is arranged between the hot runner (161) and the injection cavity (300).

6. The soft material integrated injection molding and cutting device according to claim 1, characterized in that: A driving screw (180) is provided on a side of the front template (110) facing the rear template (210), and the front template (110) is slidably connected to the driving screw (180).

7. The soft material integrated injection molding and cutting device according to claim 1, characterized in that: The rear mold assembly (200) further comprises a bottom plate (240), wherein the bottom plate (240), the ejector member (230) and the rear mold plate (210) are arranged in sequence, the ejector plate (232) is arranged toward one side of the bottom plate (240), and the ejector rod (231) is arranged toward the rear mold plate (210); The bottom plate (240) and the rear template (210) are spaced apart by a square iron (250), and the ejector component (230) is movably arranged between the bottom plate (240) and the rear template (210).

8. The soft material integrated injection molding and cutting device according to claim 1, characterized in that: A buckle base component (410) is provided on the front mold assembly (100), and a buckle base plate (420) buckled and matched with the buckle base component (410) is provided on the rear mold assembly (200).

9. The soft material integrated injection molding and cutting device according to claim 1, characterized in that: The mold body is also provided with a mechanical opener and closer, comprising a lock core (510) and a lock seat (520) that cooperate and lock with each other, the lock core (510) being provided on the front mold assembly (100), and the lock seat (520) being provided on the rear mold assembly (200).

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